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[emacs.git] / src / w32fns.c
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1 /* Graphical user interface functions for the Microsoft W32 API.
2 Copyright (C) 1989, 92, 93, 94, 95, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* Added by Kevin Gallo */
24 #include <config.h>
26 #include <signal.h>
27 #include <stdio.h>
28 #include <limits.h>
29 #include <errno.h>
31 #include "lisp.h"
32 #include "charset.h"
33 #include "dispextern.h"
34 #include "w32term.h"
35 #include "keyboard.h"
36 #include "frame.h"
37 #include "window.h"
38 #include "buffer.h"
39 #include "fontset.h"
40 #include "intervals.h"
41 #include "blockinput.h"
42 #include "epaths.h"
43 #include "w32heap.h"
44 #include "termhooks.h"
45 #include "coding.h"
46 #include "ccl.h"
47 #include "systime.h"
49 #include "bitmaps/gray.xbm"
51 #include <commdlg.h>
52 #include <shellapi.h>
53 #include <ctype.h>
55 #include <dlgs.h>
56 #define FILE_NAME_TEXT_FIELD edt1
58 void syms_of_w32fns ();
59 void globals_of_w32fns ();
60 static void init_external_image_libraries ();
62 extern void free_frame_menubar ();
63 extern double atof ();
64 extern int w32_console_toggle_lock_key P_ ((int, Lisp_Object));
65 extern void w32_menu_display_help P_ ((HWND, HMENU, UINT, UINT));
66 extern void w32_free_menu_strings P_ ((HWND));
68 extern int quit_char;
70 extern char *lispy_function_keys[];
72 /* The gray bitmap `bitmaps/gray'. This is done because w32term.c uses
73 it, and including `bitmaps/gray' more than once is a problem when
74 config.h defines `static' as an empty replacement string. */
76 int gray_bitmap_width = gray_width;
77 int gray_bitmap_height = gray_height;
78 unsigned char *gray_bitmap_bits = gray_bits;
80 /* The colormap for converting color names to RGB values */
81 Lisp_Object Vw32_color_map;
83 /* Non nil if alt key presses are passed on to Windows. */
84 Lisp_Object Vw32_pass_alt_to_system;
86 /* Non nil if alt key is translated to meta_modifier, nil if it is translated
87 to alt_modifier. */
88 Lisp_Object Vw32_alt_is_meta;
90 /* If non-zero, the windows virtual key code for an alternative quit key. */
91 Lisp_Object Vw32_quit_key;
93 /* Non nil if left window key events are passed on to Windows (this only
94 affects whether "tapping" the key opens the Start menu). */
95 Lisp_Object Vw32_pass_lwindow_to_system;
97 /* Non nil if right window key events are passed on to Windows (this
98 only affects whether "tapping" the key opens the Start menu). */
99 Lisp_Object Vw32_pass_rwindow_to_system;
101 /* Virtual key code used to generate "phantom" key presses in order
102 to stop system from acting on Windows key events. */
103 Lisp_Object Vw32_phantom_key_code;
105 /* Modifier associated with the left "Windows" key, or nil to act as a
106 normal key. */
107 Lisp_Object Vw32_lwindow_modifier;
109 /* Modifier associated with the right "Windows" key, or nil to act as a
110 normal key. */
111 Lisp_Object Vw32_rwindow_modifier;
113 /* Modifier associated with the "Apps" key, or nil to act as a normal
114 key. */
115 Lisp_Object Vw32_apps_modifier;
117 /* Value is nil if Num Lock acts as a function key. */
118 Lisp_Object Vw32_enable_num_lock;
120 /* Value is nil if Caps Lock acts as a function key. */
121 Lisp_Object Vw32_enable_caps_lock;
123 /* Modifier associated with Scroll Lock, or nil to act as a normal key. */
124 Lisp_Object Vw32_scroll_lock_modifier;
126 /* Switch to control whether we inhibit requests for synthesized bold
127 and italic versions of fonts. */
128 int w32_enable_synthesized_fonts;
130 /* Enable palette management. */
131 Lisp_Object Vw32_enable_palette;
133 /* Control how close left/right button down events must be to
134 be converted to a middle button down event. */
135 Lisp_Object Vw32_mouse_button_tolerance;
137 /* Minimum interval between mouse movement (and scroll bar drag)
138 events that are passed on to the event loop. */
139 Lisp_Object Vw32_mouse_move_interval;
141 /* Flag to indicate if XBUTTON events should be passed on to Windows. */
142 int w32_pass_extra_mouse_buttons_to_system;
144 /* Non nil if no window manager is in use. */
145 Lisp_Object Vx_no_window_manager;
147 /* Non-zero means we're allowed to display a hourglass pointer. */
149 int display_hourglass_p;
151 /* The background and shape of the mouse pointer, and shape when not
152 over text or in the modeline. */
154 Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
155 Lisp_Object Vx_hourglass_pointer_shape, Vx_window_horizontal_drag_shape, Vx_hand_shape;
157 /* The shape when over mouse-sensitive text. */
159 Lisp_Object Vx_sensitive_text_pointer_shape;
161 #ifndef IDC_HAND
162 #define IDC_HAND MAKEINTRESOURCE(32649)
163 #endif
165 /* Color of chars displayed in cursor box. */
167 Lisp_Object Vx_cursor_fore_pixel;
169 /* Nonzero if using Windows. */
171 static int w32_in_use;
173 /* Search path for bitmap files. */
175 Lisp_Object Vx_bitmap_file_path;
177 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'. */
179 Lisp_Object Vx_pixel_size_width_font_regexp;
181 /* Alist of bdf fonts and the files that define them. */
182 Lisp_Object Vw32_bdf_filename_alist;
184 /* A flag to control whether fonts are matched strictly or not. */
185 int w32_strict_fontnames;
187 /* A flag to control whether we should only repaint if GetUpdateRect
188 indicates there is an update region. */
189 int w32_strict_painting;
191 /* Associative list linking character set strings to Windows codepages. */
192 Lisp_Object Vw32_charset_info_alist;
194 /* VIETNAMESE_CHARSET is not defined in some versions of MSVC. */
195 #ifndef VIETNAMESE_CHARSET
196 #define VIETNAMESE_CHARSET 163
197 #endif
199 Lisp_Object Qnone;
200 Lisp_Object Qsuppress_icon;
201 Lisp_Object Qundefined_color;
202 Lisp_Object Qcenter;
203 Lisp_Object Qcancel_timer;
204 Lisp_Object Qhyper;
205 Lisp_Object Qsuper;
206 Lisp_Object Qmeta;
207 Lisp_Object Qalt;
208 Lisp_Object Qctrl;
209 Lisp_Object Qcontrol;
210 Lisp_Object Qshift;
212 Lisp_Object Qw32_charset_ansi;
213 Lisp_Object Qw32_charset_default;
214 Lisp_Object Qw32_charset_symbol;
215 Lisp_Object Qw32_charset_shiftjis;
216 Lisp_Object Qw32_charset_hangeul;
217 Lisp_Object Qw32_charset_gb2312;
218 Lisp_Object Qw32_charset_chinesebig5;
219 Lisp_Object Qw32_charset_oem;
221 #ifndef JOHAB_CHARSET
222 #define JOHAB_CHARSET 130
223 #endif
224 #ifdef JOHAB_CHARSET
225 Lisp_Object Qw32_charset_easteurope;
226 Lisp_Object Qw32_charset_turkish;
227 Lisp_Object Qw32_charset_baltic;
228 Lisp_Object Qw32_charset_russian;
229 Lisp_Object Qw32_charset_arabic;
230 Lisp_Object Qw32_charset_greek;
231 Lisp_Object Qw32_charset_hebrew;
232 Lisp_Object Qw32_charset_vietnamese;
233 Lisp_Object Qw32_charset_thai;
234 Lisp_Object Qw32_charset_johab;
235 Lisp_Object Qw32_charset_mac;
236 #endif
238 #ifdef UNICODE_CHARSET
239 Lisp_Object Qw32_charset_unicode;
240 #endif
242 /* Prefix for system colors. */
243 #define SYSTEM_COLOR_PREFIX "System"
244 #define SYSTEM_COLOR_PREFIX_LEN (sizeof (SYSTEM_COLOR_PREFIX) - 1)
246 /* State variables for emulating a three button mouse. */
247 #define LMOUSE 1
248 #define MMOUSE 2
249 #define RMOUSE 4
251 static int button_state = 0;
252 static W32Msg saved_mouse_button_msg;
253 static unsigned mouse_button_timer = 0; /* non-zero when timer is active */
254 static W32Msg saved_mouse_move_msg;
255 static unsigned mouse_move_timer = 0;
257 /* Window that is tracking the mouse. */
258 static HWND track_mouse_window;
260 typedef BOOL (WINAPI * TrackMouseEvent_Proc)
261 (IN OUT LPTRACKMOUSEEVENT lpEventTrack);
263 TrackMouseEvent_Proc track_mouse_event_fn = NULL;
264 ClipboardSequence_Proc clipboard_sequence_fn = NULL;
266 /* W95 mousewheel handler */
267 unsigned int msh_mousewheel = 0;
269 /* Timers */
270 #define MOUSE_BUTTON_ID 1
271 #define MOUSE_MOVE_ID 2
272 #define MENU_FREE_ID 3
273 /* The delay (milliseconds) before a menu is freed after WM_EXITMENULOOP
274 is received. */
275 #define MENU_FREE_DELAY 1000
276 static unsigned menu_free_timer = 0;
278 /* The below are defined in frame.c. */
280 extern Lisp_Object Vwindow_system_version;
282 #ifdef GLYPH_DEBUG
283 int image_cache_refcount, dpyinfo_refcount;
284 #endif
287 /* From w32term.c. */
288 extern Lisp_Object Vw32_num_mouse_buttons;
289 extern Lisp_Object Vw32_recognize_altgr;
291 extern HWND w32_system_caret_hwnd;
293 extern int w32_system_caret_height;
294 extern int w32_system_caret_x;
295 extern int w32_system_caret_y;
296 extern int w32_use_visible_system_caret;
298 static HWND w32_visible_system_caret_hwnd;
301 /* Error if we are not connected to MS-Windows. */
302 void
303 check_w32 ()
305 if (! w32_in_use)
306 error ("MS-Windows not in use or not initialized");
309 /* Nonzero if we can use mouse menus.
310 You should not call this unless HAVE_MENUS is defined. */
313 have_menus_p ()
315 return w32_in_use;
318 /* Extract a frame as a FRAME_PTR, defaulting to the selected frame
319 and checking validity for W32. */
321 FRAME_PTR
322 check_x_frame (frame)
323 Lisp_Object frame;
325 FRAME_PTR f;
327 if (NILP (frame))
328 frame = selected_frame;
329 CHECK_LIVE_FRAME (frame);
330 f = XFRAME (frame);
331 if (! FRAME_W32_P (f))
332 error ("non-w32 frame used");
333 return f;
336 /* Let the user specify a display with a frame.
337 nil stands for the selected frame--or, if that is not a w32 frame,
338 the first display on the list. */
340 struct w32_display_info *
341 check_x_display_info (frame)
342 Lisp_Object frame;
344 if (NILP (frame))
346 struct frame *sf = XFRAME (selected_frame);
348 if (FRAME_W32_P (sf) && FRAME_LIVE_P (sf))
349 return FRAME_W32_DISPLAY_INFO (sf);
350 else
351 return &one_w32_display_info;
353 else if (STRINGP (frame))
354 return x_display_info_for_name (frame);
355 else
357 FRAME_PTR f;
359 CHECK_LIVE_FRAME (frame);
360 f = XFRAME (frame);
361 if (! FRAME_W32_P (f))
362 error ("non-w32 frame used");
363 return FRAME_W32_DISPLAY_INFO (f);
367 /* Return the Emacs frame-object corresponding to an w32 window.
368 It could be the frame's main window or an icon window. */
370 /* This function can be called during GC, so use GC_xxx type test macros. */
372 struct frame *
373 x_window_to_frame (dpyinfo, wdesc)
374 struct w32_display_info *dpyinfo;
375 HWND wdesc;
377 Lisp_Object tail, frame;
378 struct frame *f;
380 for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
382 frame = XCAR (tail);
383 if (!GC_FRAMEP (frame))
384 continue;
385 f = XFRAME (frame);
386 if (!FRAME_W32_P (f) || FRAME_W32_DISPLAY_INFO (f) != dpyinfo)
387 continue;
388 if (f->output_data.w32->hourglass_window == wdesc)
389 return f;
391 if (FRAME_W32_WINDOW (f) == wdesc)
392 return f;
394 return 0;
399 /* Code to deal with bitmaps. Bitmaps are referenced by their bitmap
400 id, which is just an int that this section returns. Bitmaps are
401 reference counted so they can be shared among frames.
403 Bitmap indices are guaranteed to be > 0, so a negative number can
404 be used to indicate no bitmap.
406 If you use x_create_bitmap_from_data, then you must keep track of
407 the bitmaps yourself. That is, creating a bitmap from the same
408 data more than once will not be caught. */
411 /* Functions to access the contents of a bitmap, given an id. */
414 x_bitmap_height (f, id)
415 FRAME_PTR f;
416 int id;
418 return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].height;
422 x_bitmap_width (f, id)
423 FRAME_PTR f;
424 int id;
426 return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].width;
430 x_bitmap_pixmap (f, id)
431 FRAME_PTR f;
432 int id;
434 return (int) FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].pixmap;
438 /* Allocate a new bitmap record. Returns index of new record. */
440 static int
441 x_allocate_bitmap_record (f)
442 FRAME_PTR f;
444 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
445 int i;
447 if (dpyinfo->bitmaps == NULL)
449 dpyinfo->bitmaps_size = 10;
450 dpyinfo->bitmaps
451 = (struct w32_bitmap_record *) xmalloc (dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
452 dpyinfo->bitmaps_last = 1;
453 return 1;
456 if (dpyinfo->bitmaps_last < dpyinfo->bitmaps_size)
457 return ++dpyinfo->bitmaps_last;
459 for (i = 0; i < dpyinfo->bitmaps_size; ++i)
460 if (dpyinfo->bitmaps[i].refcount == 0)
461 return i + 1;
463 dpyinfo->bitmaps_size *= 2;
464 dpyinfo->bitmaps
465 = (struct w32_bitmap_record *) xrealloc (dpyinfo->bitmaps,
466 dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
467 return ++dpyinfo->bitmaps_last;
470 /* Add one reference to the reference count of the bitmap with id ID. */
472 void
473 x_reference_bitmap (f, id)
474 FRAME_PTR f;
475 int id;
477 ++FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].refcount;
480 /* Create a bitmap for frame F from a HEIGHT x WIDTH array of bits at BITS. */
483 x_create_bitmap_from_data (f, bits, width, height)
484 struct frame *f;
485 char *bits;
486 unsigned int width, height;
488 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
489 Pixmap bitmap;
490 int id;
492 bitmap = CreateBitmap (width, height,
493 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_planes,
494 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_cbits,
495 bits);
497 if (! bitmap)
498 return -1;
500 id = x_allocate_bitmap_record (f);
501 dpyinfo->bitmaps[id - 1].pixmap = bitmap;
502 dpyinfo->bitmaps[id - 1].file = NULL;
503 dpyinfo->bitmaps[id - 1].hinst = NULL;
504 dpyinfo->bitmaps[id - 1].refcount = 1;
505 dpyinfo->bitmaps[id - 1].depth = 1;
506 dpyinfo->bitmaps[id - 1].height = height;
507 dpyinfo->bitmaps[id - 1].width = width;
509 return id;
512 /* Create bitmap from file FILE for frame F. */
515 x_create_bitmap_from_file (f, file)
516 struct frame *f;
517 Lisp_Object file;
519 return -1;
520 #if 0 /* TODO : bitmap support */
521 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
522 unsigned int width, height;
523 HBITMAP bitmap;
524 int xhot, yhot, result, id;
525 Lisp_Object found;
526 int fd;
527 char *filename;
528 HINSTANCE hinst;
530 /* Look for an existing bitmap with the same name. */
531 for (id = 0; id < dpyinfo->bitmaps_last; ++id)
533 if (dpyinfo->bitmaps[id].refcount
534 && dpyinfo->bitmaps[id].file
535 && !strcmp (dpyinfo->bitmaps[id].file, (char *) SDATA (file)))
537 ++dpyinfo->bitmaps[id].refcount;
538 return id + 1;
542 /* Search bitmap-file-path for the file, if appropriate. */
543 fd = openp (Vx_bitmap_file_path, file, Qnil, &found, Qnil);
544 if (fd < 0)
545 return -1;
546 emacs_close (fd);
548 filename = (char *) SDATA (found);
550 hinst = LoadLibraryEx (filename, NULL, LOAD_LIBRARY_AS_DATAFILE);
552 if (hinst == NULL)
553 return -1;
556 result = XReadBitmapFile (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
557 filename, &width, &height, &bitmap, &xhot, &yhot);
558 if (result != BitmapSuccess)
559 return -1;
561 id = x_allocate_bitmap_record (f);
562 dpyinfo->bitmaps[id - 1].pixmap = bitmap;
563 dpyinfo->bitmaps[id - 1].refcount = 1;
564 dpyinfo->bitmaps[id - 1].file = (char *) xmalloc (SCHARS (file) + 1);
565 dpyinfo->bitmaps[id - 1].depth = 1;
566 dpyinfo->bitmaps[id - 1].height = height;
567 dpyinfo->bitmaps[id - 1].width = width;
568 strcpy (dpyinfo->bitmaps[id - 1].file, SDATA (file));
570 return id;
571 #endif /* TODO */
574 /* Remove reference to bitmap with id number ID. */
576 void
577 x_destroy_bitmap (f, id)
578 FRAME_PTR f;
579 int id;
581 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
583 if (id > 0)
585 --dpyinfo->bitmaps[id - 1].refcount;
586 if (dpyinfo->bitmaps[id - 1].refcount == 0)
588 BLOCK_INPUT;
589 DeleteObject (dpyinfo->bitmaps[id - 1].pixmap);
590 if (dpyinfo->bitmaps[id - 1].file)
592 xfree (dpyinfo->bitmaps[id - 1].file);
593 dpyinfo->bitmaps[id - 1].file = NULL;
595 UNBLOCK_INPUT;
600 /* Free all the bitmaps for the display specified by DPYINFO. */
602 static void
603 x_destroy_all_bitmaps (dpyinfo)
604 struct w32_display_info *dpyinfo;
606 int i;
607 for (i = 0; i < dpyinfo->bitmaps_last; i++)
608 if (dpyinfo->bitmaps[i].refcount > 0)
610 DeleteObject (dpyinfo->bitmaps[i].pixmap);
611 if (dpyinfo->bitmaps[i].file)
612 xfree (dpyinfo->bitmaps[i].file);
614 dpyinfo->bitmaps_last = 0;
617 BOOL my_show_window P_ ((struct frame *, HWND, int));
618 void my_set_window_pos P_ ((HWND, HWND, int, int, int, int, UINT));
619 static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
620 static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
622 /* TODO: Native Input Method support; see x_create_im. */
623 void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
624 void x_set_background_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
625 void x_set_mouse_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
626 void x_set_cursor_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
627 void x_set_border_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
628 void x_set_cursor_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
629 void x_set_icon_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
630 void x_set_icon_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
631 void x_explicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
632 void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
633 void x_set_title P_ ((struct frame *, Lisp_Object, Lisp_Object));
634 void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
635 static void x_edge_detection P_ ((struct frame *, struct image *, Lisp_Object,
636 Lisp_Object));
641 /* Store the screen positions of frame F into XPTR and YPTR.
642 These are the positions of the containing window manager window,
643 not Emacs's own window. */
645 void
646 x_real_positions (f, xptr, yptr)
647 FRAME_PTR f;
648 int *xptr, *yptr;
650 POINT pt;
651 RECT rect;
653 GetClientRect(FRAME_W32_WINDOW(f), &rect);
654 AdjustWindowRect(&rect, f->output_data.w32->dwStyle, FRAME_EXTERNAL_MENU_BAR(f));
656 pt.x = rect.left;
657 pt.y = rect.top;
659 ClientToScreen (FRAME_W32_WINDOW(f), &pt);
661 /* Remember x_pixels_diff and y_pixels_diff. */
662 f->x_pixels_diff = pt.x - rect.left;
663 f->y_pixels_diff = pt.y - rect.top;
665 *xptr = pt.x;
666 *yptr = pt.y;
671 DEFUN ("w32-define-rgb-color", Fw32_define_rgb_color,
672 Sw32_define_rgb_color, 4, 4, 0,
673 doc: /* Convert RGB numbers to a windows color reference and associate with NAME.
674 This adds or updates a named color to w32-color-map, making it
675 available for use. The original entry's RGB ref is returned, or nil
676 if the entry is new. */)
677 (red, green, blue, name)
678 Lisp_Object red, green, blue, name;
680 Lisp_Object rgb;
681 Lisp_Object oldrgb = Qnil;
682 Lisp_Object entry;
684 CHECK_NUMBER (red);
685 CHECK_NUMBER (green);
686 CHECK_NUMBER (blue);
687 CHECK_STRING (name);
689 XSET (rgb, Lisp_Int, RGB(XUINT (red), XUINT (green), XUINT (blue)));
691 BLOCK_INPUT;
693 /* replace existing entry in w32-color-map or add new entry. */
694 entry = Fassoc (name, Vw32_color_map);
695 if (NILP (entry))
697 entry = Fcons (name, rgb);
698 Vw32_color_map = Fcons (entry, Vw32_color_map);
700 else
702 oldrgb = Fcdr (entry);
703 Fsetcdr (entry, rgb);
706 UNBLOCK_INPUT;
708 return (oldrgb);
711 DEFUN ("w32-load-color-file", Fw32_load_color_file,
712 Sw32_load_color_file, 1, 1, 0,
713 doc: /* Create an alist of color entries from an external file.
714 Assign this value to w32-color-map to replace the existing color map.
716 The file should define one named RGB color per line like so:
717 R G B name
718 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
719 (filename)
720 Lisp_Object filename;
722 FILE *fp;
723 Lisp_Object cmap = Qnil;
724 Lisp_Object abspath;
726 CHECK_STRING (filename);
727 abspath = Fexpand_file_name (filename, Qnil);
729 fp = fopen (SDATA (filename), "rt");
730 if (fp)
732 char buf[512];
733 int red, green, blue;
734 int num;
736 BLOCK_INPUT;
738 while (fgets (buf, sizeof (buf), fp) != NULL) {
739 if (sscanf (buf, "%u %u %u %n", &red, &green, &blue, &num) == 3)
741 char *name = buf + num;
742 num = strlen (name) - 1;
743 if (name[num] == '\n')
744 name[num] = 0;
745 cmap = Fcons (Fcons (build_string (name),
746 make_number (RGB (red, green, blue))),
747 cmap);
750 fclose (fp);
752 UNBLOCK_INPUT;
755 return cmap;
758 /* The default colors for the w32 color map */
759 typedef struct colormap_t
761 char *name;
762 COLORREF colorref;
763 } colormap_t;
765 colormap_t w32_color_map[] =
767 {"snow" , PALETTERGB (255,250,250)},
768 {"ghost white" , PALETTERGB (248,248,255)},
769 {"GhostWhite" , PALETTERGB (248,248,255)},
770 {"white smoke" , PALETTERGB (245,245,245)},
771 {"WhiteSmoke" , PALETTERGB (245,245,245)},
772 {"gainsboro" , PALETTERGB (220,220,220)},
773 {"floral white" , PALETTERGB (255,250,240)},
774 {"FloralWhite" , PALETTERGB (255,250,240)},
775 {"old lace" , PALETTERGB (253,245,230)},
776 {"OldLace" , PALETTERGB (253,245,230)},
777 {"linen" , PALETTERGB (250,240,230)},
778 {"antique white" , PALETTERGB (250,235,215)},
779 {"AntiqueWhite" , PALETTERGB (250,235,215)},
780 {"papaya whip" , PALETTERGB (255,239,213)},
781 {"PapayaWhip" , PALETTERGB (255,239,213)},
782 {"blanched almond" , PALETTERGB (255,235,205)},
783 {"BlanchedAlmond" , PALETTERGB (255,235,205)},
784 {"bisque" , PALETTERGB (255,228,196)},
785 {"peach puff" , PALETTERGB (255,218,185)},
786 {"PeachPuff" , PALETTERGB (255,218,185)},
787 {"navajo white" , PALETTERGB (255,222,173)},
788 {"NavajoWhite" , PALETTERGB (255,222,173)},
789 {"moccasin" , PALETTERGB (255,228,181)},
790 {"cornsilk" , PALETTERGB (255,248,220)},
791 {"ivory" , PALETTERGB (255,255,240)},
792 {"lemon chiffon" , PALETTERGB (255,250,205)},
793 {"LemonChiffon" , PALETTERGB (255,250,205)},
794 {"seashell" , PALETTERGB (255,245,238)},
795 {"honeydew" , PALETTERGB (240,255,240)},
796 {"mint cream" , PALETTERGB (245,255,250)},
797 {"MintCream" , PALETTERGB (245,255,250)},
798 {"azure" , PALETTERGB (240,255,255)},
799 {"alice blue" , PALETTERGB (240,248,255)},
800 {"AliceBlue" , PALETTERGB (240,248,255)},
801 {"lavender" , PALETTERGB (230,230,250)},
802 {"lavender blush" , PALETTERGB (255,240,245)},
803 {"LavenderBlush" , PALETTERGB (255,240,245)},
804 {"misty rose" , PALETTERGB (255,228,225)},
805 {"MistyRose" , PALETTERGB (255,228,225)},
806 {"white" , PALETTERGB (255,255,255)},
807 {"black" , PALETTERGB ( 0, 0, 0)},
808 {"dark slate gray" , PALETTERGB ( 47, 79, 79)},
809 {"DarkSlateGray" , PALETTERGB ( 47, 79, 79)},
810 {"dark slate grey" , PALETTERGB ( 47, 79, 79)},
811 {"DarkSlateGrey" , PALETTERGB ( 47, 79, 79)},
812 {"dim gray" , PALETTERGB (105,105,105)},
813 {"DimGray" , PALETTERGB (105,105,105)},
814 {"dim grey" , PALETTERGB (105,105,105)},
815 {"DimGrey" , PALETTERGB (105,105,105)},
816 {"slate gray" , PALETTERGB (112,128,144)},
817 {"SlateGray" , PALETTERGB (112,128,144)},
818 {"slate grey" , PALETTERGB (112,128,144)},
819 {"SlateGrey" , PALETTERGB (112,128,144)},
820 {"light slate gray" , PALETTERGB (119,136,153)},
821 {"LightSlateGray" , PALETTERGB (119,136,153)},
822 {"light slate grey" , PALETTERGB (119,136,153)},
823 {"LightSlateGrey" , PALETTERGB (119,136,153)},
824 {"gray" , PALETTERGB (190,190,190)},
825 {"grey" , PALETTERGB (190,190,190)},
826 {"light grey" , PALETTERGB (211,211,211)},
827 {"LightGrey" , PALETTERGB (211,211,211)},
828 {"light gray" , PALETTERGB (211,211,211)},
829 {"LightGray" , PALETTERGB (211,211,211)},
830 {"midnight blue" , PALETTERGB ( 25, 25,112)},
831 {"MidnightBlue" , PALETTERGB ( 25, 25,112)},
832 {"navy" , PALETTERGB ( 0, 0,128)},
833 {"navy blue" , PALETTERGB ( 0, 0,128)},
834 {"NavyBlue" , PALETTERGB ( 0, 0,128)},
835 {"cornflower blue" , PALETTERGB (100,149,237)},
836 {"CornflowerBlue" , PALETTERGB (100,149,237)},
837 {"dark slate blue" , PALETTERGB ( 72, 61,139)},
838 {"DarkSlateBlue" , PALETTERGB ( 72, 61,139)},
839 {"slate blue" , PALETTERGB (106, 90,205)},
840 {"SlateBlue" , PALETTERGB (106, 90,205)},
841 {"medium slate blue" , PALETTERGB (123,104,238)},
842 {"MediumSlateBlue" , PALETTERGB (123,104,238)},
843 {"light slate blue" , PALETTERGB (132,112,255)},
844 {"LightSlateBlue" , PALETTERGB (132,112,255)},
845 {"medium blue" , PALETTERGB ( 0, 0,205)},
846 {"MediumBlue" , PALETTERGB ( 0, 0,205)},
847 {"royal blue" , PALETTERGB ( 65,105,225)},
848 {"RoyalBlue" , PALETTERGB ( 65,105,225)},
849 {"blue" , PALETTERGB ( 0, 0,255)},
850 {"dodger blue" , PALETTERGB ( 30,144,255)},
851 {"DodgerBlue" , PALETTERGB ( 30,144,255)},
852 {"deep sky blue" , PALETTERGB ( 0,191,255)},
853 {"DeepSkyBlue" , PALETTERGB ( 0,191,255)},
854 {"sky blue" , PALETTERGB (135,206,235)},
855 {"SkyBlue" , PALETTERGB (135,206,235)},
856 {"light sky blue" , PALETTERGB (135,206,250)},
857 {"LightSkyBlue" , PALETTERGB (135,206,250)},
858 {"steel blue" , PALETTERGB ( 70,130,180)},
859 {"SteelBlue" , PALETTERGB ( 70,130,180)},
860 {"light steel blue" , PALETTERGB (176,196,222)},
861 {"LightSteelBlue" , PALETTERGB (176,196,222)},
862 {"light blue" , PALETTERGB (173,216,230)},
863 {"LightBlue" , PALETTERGB (173,216,230)},
864 {"powder blue" , PALETTERGB (176,224,230)},
865 {"PowderBlue" , PALETTERGB (176,224,230)},
866 {"pale turquoise" , PALETTERGB (175,238,238)},
867 {"PaleTurquoise" , PALETTERGB (175,238,238)},
868 {"dark turquoise" , PALETTERGB ( 0,206,209)},
869 {"DarkTurquoise" , PALETTERGB ( 0,206,209)},
870 {"medium turquoise" , PALETTERGB ( 72,209,204)},
871 {"MediumTurquoise" , PALETTERGB ( 72,209,204)},
872 {"turquoise" , PALETTERGB ( 64,224,208)},
873 {"cyan" , PALETTERGB ( 0,255,255)},
874 {"light cyan" , PALETTERGB (224,255,255)},
875 {"LightCyan" , PALETTERGB (224,255,255)},
876 {"cadet blue" , PALETTERGB ( 95,158,160)},
877 {"CadetBlue" , PALETTERGB ( 95,158,160)},
878 {"medium aquamarine" , PALETTERGB (102,205,170)},
879 {"MediumAquamarine" , PALETTERGB (102,205,170)},
880 {"aquamarine" , PALETTERGB (127,255,212)},
881 {"dark green" , PALETTERGB ( 0,100, 0)},
882 {"DarkGreen" , PALETTERGB ( 0,100, 0)},
883 {"dark olive green" , PALETTERGB ( 85,107, 47)},
884 {"DarkOliveGreen" , PALETTERGB ( 85,107, 47)},
885 {"dark sea green" , PALETTERGB (143,188,143)},
886 {"DarkSeaGreen" , PALETTERGB (143,188,143)},
887 {"sea green" , PALETTERGB ( 46,139, 87)},
888 {"SeaGreen" , PALETTERGB ( 46,139, 87)},
889 {"medium sea green" , PALETTERGB ( 60,179,113)},
890 {"MediumSeaGreen" , PALETTERGB ( 60,179,113)},
891 {"light sea green" , PALETTERGB ( 32,178,170)},
892 {"LightSeaGreen" , PALETTERGB ( 32,178,170)},
893 {"pale green" , PALETTERGB (152,251,152)},
894 {"PaleGreen" , PALETTERGB (152,251,152)},
895 {"spring green" , PALETTERGB ( 0,255,127)},
896 {"SpringGreen" , PALETTERGB ( 0,255,127)},
897 {"lawn green" , PALETTERGB (124,252, 0)},
898 {"LawnGreen" , PALETTERGB (124,252, 0)},
899 {"green" , PALETTERGB ( 0,255, 0)},
900 {"chartreuse" , PALETTERGB (127,255, 0)},
901 {"medium spring green" , PALETTERGB ( 0,250,154)},
902 {"MediumSpringGreen" , PALETTERGB ( 0,250,154)},
903 {"green yellow" , PALETTERGB (173,255, 47)},
904 {"GreenYellow" , PALETTERGB (173,255, 47)},
905 {"lime green" , PALETTERGB ( 50,205, 50)},
906 {"LimeGreen" , PALETTERGB ( 50,205, 50)},
907 {"yellow green" , PALETTERGB (154,205, 50)},
908 {"YellowGreen" , PALETTERGB (154,205, 50)},
909 {"forest green" , PALETTERGB ( 34,139, 34)},
910 {"ForestGreen" , PALETTERGB ( 34,139, 34)},
911 {"olive drab" , PALETTERGB (107,142, 35)},
912 {"OliveDrab" , PALETTERGB (107,142, 35)},
913 {"dark khaki" , PALETTERGB (189,183,107)},
914 {"DarkKhaki" , PALETTERGB (189,183,107)},
915 {"khaki" , PALETTERGB (240,230,140)},
916 {"pale goldenrod" , PALETTERGB (238,232,170)},
917 {"PaleGoldenrod" , PALETTERGB (238,232,170)},
918 {"light goldenrod yellow" , PALETTERGB (250,250,210)},
919 {"LightGoldenrodYellow" , PALETTERGB (250,250,210)},
920 {"light yellow" , PALETTERGB (255,255,224)},
921 {"LightYellow" , PALETTERGB (255,255,224)},
922 {"yellow" , PALETTERGB (255,255, 0)},
923 {"gold" , PALETTERGB (255,215, 0)},
924 {"light goldenrod" , PALETTERGB (238,221,130)},
925 {"LightGoldenrod" , PALETTERGB (238,221,130)},
926 {"goldenrod" , PALETTERGB (218,165, 32)},
927 {"dark goldenrod" , PALETTERGB (184,134, 11)},
928 {"DarkGoldenrod" , PALETTERGB (184,134, 11)},
929 {"rosy brown" , PALETTERGB (188,143,143)},
930 {"RosyBrown" , PALETTERGB (188,143,143)},
931 {"indian red" , PALETTERGB (205, 92, 92)},
932 {"IndianRed" , PALETTERGB (205, 92, 92)},
933 {"saddle brown" , PALETTERGB (139, 69, 19)},
934 {"SaddleBrown" , PALETTERGB (139, 69, 19)},
935 {"sienna" , PALETTERGB (160, 82, 45)},
936 {"peru" , PALETTERGB (205,133, 63)},
937 {"burlywood" , PALETTERGB (222,184,135)},
938 {"beige" , PALETTERGB (245,245,220)},
939 {"wheat" , PALETTERGB (245,222,179)},
940 {"sandy brown" , PALETTERGB (244,164, 96)},
941 {"SandyBrown" , PALETTERGB (244,164, 96)},
942 {"tan" , PALETTERGB (210,180,140)},
943 {"chocolate" , PALETTERGB (210,105, 30)},
944 {"firebrick" , PALETTERGB (178,34, 34)},
945 {"brown" , PALETTERGB (165,42, 42)},
946 {"dark salmon" , PALETTERGB (233,150,122)},
947 {"DarkSalmon" , PALETTERGB (233,150,122)},
948 {"salmon" , PALETTERGB (250,128,114)},
949 {"light salmon" , PALETTERGB (255,160,122)},
950 {"LightSalmon" , PALETTERGB (255,160,122)},
951 {"orange" , PALETTERGB (255,165, 0)},
952 {"dark orange" , PALETTERGB (255,140, 0)},
953 {"DarkOrange" , PALETTERGB (255,140, 0)},
954 {"coral" , PALETTERGB (255,127, 80)},
955 {"light coral" , PALETTERGB (240,128,128)},
956 {"LightCoral" , PALETTERGB (240,128,128)},
957 {"tomato" , PALETTERGB (255, 99, 71)},
958 {"orange red" , PALETTERGB (255, 69, 0)},
959 {"OrangeRed" , PALETTERGB (255, 69, 0)},
960 {"red" , PALETTERGB (255, 0, 0)},
961 {"hot pink" , PALETTERGB (255,105,180)},
962 {"HotPink" , PALETTERGB (255,105,180)},
963 {"deep pink" , PALETTERGB (255, 20,147)},
964 {"DeepPink" , PALETTERGB (255, 20,147)},
965 {"pink" , PALETTERGB (255,192,203)},
966 {"light pink" , PALETTERGB (255,182,193)},
967 {"LightPink" , PALETTERGB (255,182,193)},
968 {"pale violet red" , PALETTERGB (219,112,147)},
969 {"PaleVioletRed" , PALETTERGB (219,112,147)},
970 {"maroon" , PALETTERGB (176, 48, 96)},
971 {"medium violet red" , PALETTERGB (199, 21,133)},
972 {"MediumVioletRed" , PALETTERGB (199, 21,133)},
973 {"violet red" , PALETTERGB (208, 32,144)},
974 {"VioletRed" , PALETTERGB (208, 32,144)},
975 {"magenta" , PALETTERGB (255, 0,255)},
976 {"violet" , PALETTERGB (238,130,238)},
977 {"plum" , PALETTERGB (221,160,221)},
978 {"orchid" , PALETTERGB (218,112,214)},
979 {"medium orchid" , PALETTERGB (186, 85,211)},
980 {"MediumOrchid" , PALETTERGB (186, 85,211)},
981 {"dark orchid" , PALETTERGB (153, 50,204)},
982 {"DarkOrchid" , PALETTERGB (153, 50,204)},
983 {"dark violet" , PALETTERGB (148, 0,211)},
984 {"DarkViolet" , PALETTERGB (148, 0,211)},
985 {"blue violet" , PALETTERGB (138, 43,226)},
986 {"BlueViolet" , PALETTERGB (138, 43,226)},
987 {"purple" , PALETTERGB (160, 32,240)},
988 {"medium purple" , PALETTERGB (147,112,219)},
989 {"MediumPurple" , PALETTERGB (147,112,219)},
990 {"thistle" , PALETTERGB (216,191,216)},
991 {"gray0" , PALETTERGB ( 0, 0, 0)},
992 {"grey0" , PALETTERGB ( 0, 0, 0)},
993 {"dark grey" , PALETTERGB (169,169,169)},
994 {"DarkGrey" , PALETTERGB (169,169,169)},
995 {"dark gray" , PALETTERGB (169,169,169)},
996 {"DarkGray" , PALETTERGB (169,169,169)},
997 {"dark blue" , PALETTERGB ( 0, 0,139)},
998 {"DarkBlue" , PALETTERGB ( 0, 0,139)},
999 {"dark cyan" , PALETTERGB ( 0,139,139)},
1000 {"DarkCyan" , PALETTERGB ( 0,139,139)},
1001 {"dark magenta" , PALETTERGB (139, 0,139)},
1002 {"DarkMagenta" , PALETTERGB (139, 0,139)},
1003 {"dark red" , PALETTERGB (139, 0, 0)},
1004 {"DarkRed" , PALETTERGB (139, 0, 0)},
1005 {"light green" , PALETTERGB (144,238,144)},
1006 {"LightGreen" , PALETTERGB (144,238,144)},
1009 DEFUN ("w32-default-color-map", Fw32_default_color_map, Sw32_default_color_map,
1010 0, 0, 0, doc: /* Return the default color map. */)
1013 int i;
1014 colormap_t *pc = w32_color_map;
1015 Lisp_Object cmap;
1017 BLOCK_INPUT;
1019 cmap = Qnil;
1021 for (i = 0; i < sizeof (w32_color_map) / sizeof (w32_color_map[0]);
1022 pc++, i++)
1023 cmap = Fcons (Fcons (build_string (pc->name),
1024 make_number (pc->colorref)),
1025 cmap);
1027 UNBLOCK_INPUT;
1029 return (cmap);
1032 Lisp_Object
1033 w32_to_x_color (rgb)
1034 Lisp_Object rgb;
1036 Lisp_Object color;
1038 CHECK_NUMBER (rgb);
1040 BLOCK_INPUT;
1042 color = Frassq (rgb, Vw32_color_map);
1044 UNBLOCK_INPUT;
1046 if (!NILP (color))
1047 return (Fcar (color));
1048 else
1049 return Qnil;
1052 COLORREF
1053 w32_color_map_lookup (colorname)
1054 char *colorname;
1056 Lisp_Object tail, ret = Qnil;
1058 BLOCK_INPUT;
1060 for (tail = Vw32_color_map; !NILP (tail); tail = Fcdr (tail))
1062 register Lisp_Object elt, tem;
1064 elt = Fcar (tail);
1065 if (!CONSP (elt)) continue;
1067 tem = Fcar (elt);
1069 if (lstrcmpi (SDATA (tem), colorname) == 0)
1071 ret = XUINT (Fcdr (elt));
1072 break;
1075 QUIT;
1079 UNBLOCK_INPUT;
1081 return ret;
1085 static void
1086 add_system_logical_colors_to_map (system_colors)
1087 Lisp_Object *system_colors;
1089 HKEY colors_key;
1091 /* Other registry operations are done with input blocked. */
1092 BLOCK_INPUT;
1094 /* Look for "Control Panel/Colors" under User and Machine registry
1095 settings. */
1096 if (RegOpenKeyEx (HKEY_CURRENT_USER, "Control Panel\\Colors", 0,
1097 KEY_READ, &colors_key) == ERROR_SUCCESS
1098 || RegOpenKeyEx (HKEY_LOCAL_MACHINE, "Control Panel\\Colors", 0,
1099 KEY_READ, &colors_key) == ERROR_SUCCESS)
1101 /* List all keys. */
1102 char color_buffer[64];
1103 char full_name_buffer[MAX_PATH + SYSTEM_COLOR_PREFIX_LEN];
1104 int index = 0;
1105 DWORD name_size, color_size;
1106 char *name_buffer = full_name_buffer + SYSTEM_COLOR_PREFIX_LEN;
1108 name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
1109 color_size = sizeof (color_buffer);
1111 strcpy (full_name_buffer, SYSTEM_COLOR_PREFIX);
1113 while (RegEnumValueA (colors_key, index, name_buffer, &name_size,
1114 NULL, NULL, color_buffer, &color_size)
1115 == ERROR_SUCCESS)
1117 int r, g, b;
1118 if (sscanf (color_buffer, " %u %u %u", &r, &g, &b) == 3)
1119 *system_colors = Fcons (Fcons (build_string (full_name_buffer),
1120 make_number (RGB (r, g, b))),
1121 *system_colors);
1123 name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
1124 color_size = sizeof (color_buffer);
1125 index++;
1127 RegCloseKey (colors_key);
1130 UNBLOCK_INPUT;
1134 COLORREF
1135 x_to_w32_color (colorname)
1136 char * colorname;
1138 register Lisp_Object ret = Qnil;
1140 BLOCK_INPUT;
1142 if (colorname[0] == '#')
1144 /* Could be an old-style RGB Device specification. */
1145 char *color;
1146 int size;
1147 color = colorname + 1;
1149 size = strlen(color);
1150 if (size == 3 || size == 6 || size == 9 || size == 12)
1152 UINT colorval;
1153 int i, pos;
1154 pos = 0;
1155 size /= 3;
1156 colorval = 0;
1158 for (i = 0; i < 3; i++)
1160 char *end;
1161 char t;
1162 unsigned long value;
1164 /* The check for 'x' in the following conditional takes into
1165 account the fact that strtol allows a "0x" in front of
1166 our numbers, and we don't. */
1167 if (!isxdigit(color[0]) || color[1] == 'x')
1168 break;
1169 t = color[size];
1170 color[size] = '\0';
1171 value = strtoul(color, &end, 16);
1172 color[size] = t;
1173 if (errno == ERANGE || end - color != size)
1174 break;
1175 switch (size)
1177 case 1:
1178 value = value * 0x10;
1179 break;
1180 case 2:
1181 break;
1182 case 3:
1183 value /= 0x10;
1184 break;
1185 case 4:
1186 value /= 0x100;
1187 break;
1189 colorval |= (value << pos);
1190 pos += 0x8;
1191 if (i == 2)
1193 UNBLOCK_INPUT;
1194 return (colorval);
1196 color = end;
1200 else if (strnicmp(colorname, "rgb:", 4) == 0)
1202 char *color;
1203 UINT colorval;
1204 int i, pos;
1205 pos = 0;
1207 colorval = 0;
1208 color = colorname + 4;
1209 for (i = 0; i < 3; i++)
1211 char *end;
1212 unsigned long value;
1214 /* The check for 'x' in the following conditional takes into
1215 account the fact that strtol allows a "0x" in front of
1216 our numbers, and we don't. */
1217 if (!isxdigit(color[0]) || color[1] == 'x')
1218 break;
1219 value = strtoul(color, &end, 16);
1220 if (errno == ERANGE)
1221 break;
1222 switch (end - color)
1224 case 1:
1225 value = value * 0x10 + value;
1226 break;
1227 case 2:
1228 break;
1229 case 3:
1230 value /= 0x10;
1231 break;
1232 case 4:
1233 value /= 0x100;
1234 break;
1235 default:
1236 value = ULONG_MAX;
1238 if (value == ULONG_MAX)
1239 break;
1240 colorval |= (value << pos);
1241 pos += 0x8;
1242 if (i == 2)
1244 if (*end != '\0')
1245 break;
1246 UNBLOCK_INPUT;
1247 return (colorval);
1249 if (*end != '/')
1250 break;
1251 color = end + 1;
1254 else if (strnicmp(colorname, "rgbi:", 5) == 0)
1256 /* This is an RGB Intensity specification. */
1257 char *color;
1258 UINT colorval;
1259 int i, pos;
1260 pos = 0;
1262 colorval = 0;
1263 color = colorname + 5;
1264 for (i = 0; i < 3; i++)
1266 char *end;
1267 double value;
1268 UINT val;
1270 value = strtod(color, &end);
1271 if (errno == ERANGE)
1272 break;
1273 if (value < 0.0 || value > 1.0)
1274 break;
1275 val = (UINT)(0x100 * value);
1276 /* We used 0x100 instead of 0xFF to give a continuous
1277 range between 0.0 and 1.0 inclusive. The next statement
1278 fixes the 1.0 case. */
1279 if (val == 0x100)
1280 val = 0xFF;
1281 colorval |= (val << pos);
1282 pos += 0x8;
1283 if (i == 2)
1285 if (*end != '\0')
1286 break;
1287 UNBLOCK_INPUT;
1288 return (colorval);
1290 if (*end != '/')
1291 break;
1292 color = end + 1;
1295 /* I am not going to attempt to handle any of the CIE color schemes
1296 or TekHVC, since I don't know the algorithms for conversion to
1297 RGB. */
1299 /* If we fail to lookup the color name in w32_color_map, then check the
1300 colorname to see if it can be crudely approximated: If the X color
1301 ends in a number (e.g., "darkseagreen2"), strip the number and
1302 return the result of looking up the base color name. */
1303 ret = w32_color_map_lookup (colorname);
1304 if (NILP (ret))
1306 int len = strlen (colorname);
1308 if (isdigit (colorname[len - 1]))
1310 char *ptr, *approx = alloca (len + 1);
1312 strcpy (approx, colorname);
1313 ptr = &approx[len - 1];
1314 while (ptr > approx && isdigit (*ptr))
1315 *ptr-- = '\0';
1317 ret = w32_color_map_lookup (approx);
1321 UNBLOCK_INPUT;
1322 return ret;
1325 void
1326 w32_regenerate_palette (FRAME_PTR f)
1328 struct w32_palette_entry * list;
1329 LOGPALETTE * log_palette;
1330 HPALETTE new_palette;
1331 int i;
1333 /* don't bother trying to create palette if not supported */
1334 if (! FRAME_W32_DISPLAY_INFO (f)->has_palette)
1335 return;
1337 log_palette = (LOGPALETTE *)
1338 alloca (sizeof (LOGPALETTE) +
1339 FRAME_W32_DISPLAY_INFO (f)->num_colors * sizeof (PALETTEENTRY));
1340 log_palette->palVersion = 0x300;
1341 log_palette->palNumEntries = FRAME_W32_DISPLAY_INFO (f)->num_colors;
1343 list = FRAME_W32_DISPLAY_INFO (f)->color_list;
1344 for (i = 0;
1345 i < FRAME_W32_DISPLAY_INFO (f)->num_colors;
1346 i++, list = list->next)
1347 log_palette->palPalEntry[i] = list->entry;
1349 new_palette = CreatePalette (log_palette);
1351 enter_crit ();
1353 if (FRAME_W32_DISPLAY_INFO (f)->palette)
1354 DeleteObject (FRAME_W32_DISPLAY_INFO (f)->palette);
1355 FRAME_W32_DISPLAY_INFO (f)->palette = new_palette;
1357 /* Realize display palette and garbage all frames. */
1358 release_frame_dc (f, get_frame_dc (f));
1360 leave_crit ();
1363 #define W32_COLOR(pe) RGB (pe.peRed, pe.peGreen, pe.peBlue)
1364 #define SET_W32_COLOR(pe, color) \
1365 do \
1367 pe.peRed = GetRValue (color); \
1368 pe.peGreen = GetGValue (color); \
1369 pe.peBlue = GetBValue (color); \
1370 pe.peFlags = 0; \
1371 } while (0)
1373 #if 0
1374 /* Keep these around in case we ever want to track color usage. */
1375 void
1376 w32_map_color (FRAME_PTR f, COLORREF color)
1378 struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
1380 if (NILP (Vw32_enable_palette))
1381 return;
1383 /* check if color is already mapped */
1384 while (list)
1386 if (W32_COLOR (list->entry) == color)
1388 ++list->refcount;
1389 return;
1391 list = list->next;
1394 /* not already mapped, so add to list and recreate Windows palette */
1395 list = (struct w32_palette_entry *)
1396 xmalloc (sizeof (struct w32_palette_entry));
1397 SET_W32_COLOR (list->entry, color);
1398 list->refcount = 1;
1399 list->next = FRAME_W32_DISPLAY_INFO (f)->color_list;
1400 FRAME_W32_DISPLAY_INFO (f)->color_list = list;
1401 FRAME_W32_DISPLAY_INFO (f)->num_colors++;
1403 /* set flag that palette must be regenerated */
1404 FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
1407 void
1408 w32_unmap_color (FRAME_PTR f, COLORREF color)
1410 struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
1411 struct w32_palette_entry **prev = &FRAME_W32_DISPLAY_INFO (f)->color_list;
1413 if (NILP (Vw32_enable_palette))
1414 return;
1416 /* check if color is already mapped */
1417 while (list)
1419 if (W32_COLOR (list->entry) == color)
1421 if (--list->refcount == 0)
1423 *prev = list->next;
1424 xfree (list);
1425 FRAME_W32_DISPLAY_INFO (f)->num_colors--;
1426 break;
1428 else
1429 return;
1431 prev = &list->next;
1432 list = list->next;
1435 /* set flag that palette must be regenerated */
1436 FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
1438 #endif
1441 /* Gamma-correct COLOR on frame F. */
1443 void
1444 gamma_correct (f, color)
1445 struct frame *f;
1446 COLORREF *color;
1448 if (f->gamma)
1450 *color = PALETTERGB (
1451 pow (GetRValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
1452 pow (GetGValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
1453 pow (GetBValue (*color) / 255.0, f->gamma) * 255.0 + 0.5);
1458 /* Decide if color named COLOR is valid for the display associated with
1459 the selected frame; if so, return the rgb values in COLOR_DEF.
1460 If ALLOC is nonzero, allocate a new colormap cell. */
1463 w32_defined_color (f, color, color_def, alloc)
1464 FRAME_PTR f;
1465 char *color;
1466 XColor *color_def;
1467 int alloc;
1469 register Lisp_Object tem;
1470 COLORREF w32_color_ref;
1472 tem = x_to_w32_color (color);
1474 if (!NILP (tem))
1476 if (f)
1478 /* Apply gamma correction. */
1479 w32_color_ref = XUINT (tem);
1480 gamma_correct (f, &w32_color_ref);
1481 XSETINT (tem, w32_color_ref);
1484 /* Map this color to the palette if it is enabled. */
1485 if (!NILP (Vw32_enable_palette))
1487 struct w32_palette_entry * entry =
1488 one_w32_display_info.color_list;
1489 struct w32_palette_entry ** prev =
1490 &one_w32_display_info.color_list;
1492 /* check if color is already mapped */
1493 while (entry)
1495 if (W32_COLOR (entry->entry) == XUINT (tem))
1496 break;
1497 prev = &entry->next;
1498 entry = entry->next;
1501 if (entry == NULL && alloc)
1503 /* not already mapped, so add to list */
1504 entry = (struct w32_palette_entry *)
1505 xmalloc (sizeof (struct w32_palette_entry));
1506 SET_W32_COLOR (entry->entry, XUINT (tem));
1507 entry->next = NULL;
1508 *prev = entry;
1509 one_w32_display_info.num_colors++;
1511 /* set flag that palette must be regenerated */
1512 one_w32_display_info.regen_palette = TRUE;
1515 /* Ensure COLORREF value is snapped to nearest color in (default)
1516 palette by simulating the PALETTERGB macro. This works whether
1517 or not the display device has a palette. */
1518 w32_color_ref = XUINT (tem) | 0x2000000;
1520 color_def->pixel = w32_color_ref;
1521 color_def->red = GetRValue (w32_color_ref) * 256;
1522 color_def->green = GetGValue (w32_color_ref) * 256;
1523 color_def->blue = GetBValue (w32_color_ref) * 256;
1525 return 1;
1527 else
1529 return 0;
1533 /* Given a string ARG naming a color, compute a pixel value from it
1534 suitable for screen F.
1535 If F is not a color screen, return DEF (default) regardless of what
1536 ARG says. */
1539 x_decode_color (f, arg, def)
1540 FRAME_PTR f;
1541 Lisp_Object arg;
1542 int def;
1544 XColor cdef;
1546 CHECK_STRING (arg);
1548 if (strcmp (SDATA (arg), "black") == 0)
1549 return BLACK_PIX_DEFAULT (f);
1550 else if (strcmp (SDATA (arg), "white") == 0)
1551 return WHITE_PIX_DEFAULT (f);
1553 if ((FRAME_W32_DISPLAY_INFO (f)->n_planes * FRAME_W32_DISPLAY_INFO (f)->n_cbits) == 1)
1554 return def;
1556 /* w32_defined_color is responsible for coping with failures
1557 by looking for a near-miss. */
1558 if (w32_defined_color (f, SDATA (arg), &cdef, 1))
1559 return cdef.pixel;
1561 /* defined_color failed; return an ultimate default. */
1562 return def;
1567 /* Functions called only from `x_set_frame_param'
1568 to set individual parameters.
1570 If FRAME_W32_WINDOW (f) is 0,
1571 the frame is being created and its window does not exist yet.
1572 In that case, just record the parameter's new value
1573 in the standard place; do not attempt to change the window. */
1575 void
1576 x_set_foreground_color (f, arg, oldval)
1577 struct frame *f;
1578 Lisp_Object arg, oldval;
1580 struct w32_output *x = f->output_data.w32;
1581 PIX_TYPE fg, old_fg;
1583 fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1584 old_fg = FRAME_FOREGROUND_PIXEL (f);
1585 FRAME_FOREGROUND_PIXEL (f) = fg;
1587 if (FRAME_W32_WINDOW (f) != 0)
1589 if (x->cursor_pixel == old_fg)
1590 x->cursor_pixel = fg;
1592 update_face_from_frame_parameter (f, Qforeground_color, arg);
1593 if (FRAME_VISIBLE_P (f))
1594 redraw_frame (f);
1598 void
1599 x_set_background_color (f, arg, oldval)
1600 struct frame *f;
1601 Lisp_Object arg, oldval;
1603 FRAME_BACKGROUND_PIXEL (f)
1604 = x_decode_color (f, arg, WHITE_PIX_DEFAULT (f));
1606 if (FRAME_W32_WINDOW (f) != 0)
1608 SetWindowLong (FRAME_W32_WINDOW (f), WND_BACKGROUND_INDEX,
1609 FRAME_BACKGROUND_PIXEL (f));
1611 update_face_from_frame_parameter (f, Qbackground_color, arg);
1613 if (FRAME_VISIBLE_P (f))
1614 redraw_frame (f);
1618 void
1619 x_set_mouse_color (f, arg, oldval)
1620 struct frame *f;
1621 Lisp_Object arg, oldval;
1623 Cursor cursor, nontext_cursor, mode_cursor, hand_cursor;
1624 int count;
1625 int mask_color;
1627 if (!EQ (Qnil, arg))
1628 f->output_data.w32->mouse_pixel
1629 = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1630 mask_color = FRAME_BACKGROUND_PIXEL (f);
1632 /* Don't let pointers be invisible. */
1633 if (mask_color == f->output_data.w32->mouse_pixel
1634 && mask_color == FRAME_BACKGROUND_PIXEL (f))
1635 f->output_data.w32->mouse_pixel = FRAME_FOREGROUND_PIXEL (f);
1637 #if 0 /* TODO : cursor changes */
1638 BLOCK_INPUT;
1640 /* It's not okay to crash if the user selects a screwy cursor. */
1641 count = x_catch_errors (FRAME_W32_DISPLAY (f));
1643 if (!EQ (Qnil, Vx_pointer_shape))
1645 CHECK_NUMBER (Vx_pointer_shape);
1646 cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XINT (Vx_pointer_shape));
1648 else
1649 cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_xterm);
1650 x_check_errors (FRAME_W32_DISPLAY (f), "bad text pointer cursor: %s");
1652 if (!EQ (Qnil, Vx_nontext_pointer_shape))
1654 CHECK_NUMBER (Vx_nontext_pointer_shape);
1655 nontext_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1656 XINT (Vx_nontext_pointer_shape));
1658 else
1659 nontext_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_left_ptr);
1660 x_check_errors (FRAME_W32_DISPLAY (f), "bad nontext pointer cursor: %s");
1662 if (!EQ (Qnil, Vx_hourglass_pointer_shape))
1664 CHECK_NUMBER (Vx_hourglass_pointer_shape);
1665 hourglass_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1666 XINT (Vx_hourglass_pointer_shape));
1668 else
1669 hourglass_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_watch);
1670 x_check_errors (FRAME_W32_DISPLAY (f), "bad busy pointer cursor: %s");
1672 x_check_errors (FRAME_W32_DISPLAY (f), "bad nontext pointer cursor: %s");
1673 if (!EQ (Qnil, Vx_mode_pointer_shape))
1675 CHECK_NUMBER (Vx_mode_pointer_shape);
1676 mode_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1677 XINT (Vx_mode_pointer_shape));
1679 else
1680 mode_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_xterm);
1681 x_check_errors (FRAME_W32_DISPLAY (f), "bad modeline pointer cursor: %s");
1683 if (!EQ (Qnil, Vx_sensitive_text_pointer_shape))
1685 CHECK_NUMBER (Vx_sensitive_text_pointer_shape);
1686 hand_cursor
1687 = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1688 XINT (Vx_sensitive_text_pointer_shape));
1690 else
1691 hand_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_crosshair);
1693 if (!NILP (Vx_window_horizontal_drag_shape))
1695 CHECK_NUMBER (Vx_window_horizontal_drag_shape);
1696 horizontal_drag_cursor
1697 = XCreateFontCursor (FRAME_X_DISPLAY (f),
1698 XINT (Vx_window_horizontal_drag_shape));
1700 else
1701 horizontal_drag_cursor
1702 = XCreateFontCursor (FRAME_X_DISPLAY (f), XC_sb_h_double_arrow);
1704 /* Check and report errors with the above calls. */
1705 x_check_errors (FRAME_W32_DISPLAY (f), "can't set cursor shape: %s");
1706 x_uncatch_errors (FRAME_W32_DISPLAY (f), count);
1709 XColor fore_color, back_color;
1711 fore_color.pixel = f->output_data.w32->mouse_pixel;
1712 back_color.pixel = mask_color;
1713 XQueryColor (FRAME_W32_DISPLAY (f),
1714 DefaultColormap (FRAME_W32_DISPLAY (f),
1715 DefaultScreen (FRAME_W32_DISPLAY (f))),
1716 &fore_color);
1717 XQueryColor (FRAME_W32_DISPLAY (f),
1718 DefaultColormap (FRAME_W32_DISPLAY (f),
1719 DefaultScreen (FRAME_W32_DISPLAY (f))),
1720 &back_color);
1721 XRecolorCursor (FRAME_W32_DISPLAY (f), cursor,
1722 &fore_color, &back_color);
1723 XRecolorCursor (FRAME_W32_DISPLAY (f), nontext_cursor,
1724 &fore_color, &back_color);
1725 XRecolorCursor (FRAME_W32_DISPLAY (f), mode_cursor,
1726 &fore_color, &back_color);
1727 XRecolorCursor (FRAME_W32_DISPLAY (f), hand_cursor,
1728 &fore_color, &back_color);
1729 XRecolorCursor (FRAME_W32_DISPLAY (f), hourglass_cursor,
1730 &fore_color, &back_color);
1733 if (FRAME_W32_WINDOW (f) != 0)
1734 XDefineCursor (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f), cursor);
1736 if (cursor != f->output_data.w32->text_cursor && f->output_data.w32->text_cursor != 0)
1737 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->text_cursor);
1738 f->output_data.w32->text_cursor = cursor;
1740 if (nontext_cursor != f->output_data.w32->nontext_cursor
1741 && f->output_data.w32->nontext_cursor != 0)
1742 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->nontext_cursor);
1743 f->output_data.w32->nontext_cursor = nontext_cursor;
1745 if (hourglass_cursor != f->output_data.w32->hourglass_cursor
1746 && f->output_data.w32->hourglass_cursor != 0)
1747 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->hourglass_cursor);
1748 f->output_data.w32->hourglass_cursor = hourglass_cursor;
1750 if (mode_cursor != f->output_data.w32->modeline_cursor
1751 && f->output_data.w32->modeline_cursor != 0)
1752 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->modeline_cursor);
1753 f->output_data.w32->modeline_cursor = mode_cursor;
1755 if (hand_cursor != f->output_data.w32->hand_cursor
1756 && f->output_data.w32->hand_cursor != 0)
1757 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->hand_cursor);
1758 f->output_data.w32->hand_cursor = hand_cursor;
1760 XFlush (FRAME_W32_DISPLAY (f));
1761 UNBLOCK_INPUT;
1763 update_face_from_frame_parameter (f, Qmouse_color, arg);
1764 #endif /* TODO */
1767 /* Defined in w32term.c. */
1768 void
1769 x_set_cursor_color (f, arg, oldval)
1770 struct frame *f;
1771 Lisp_Object arg, oldval;
1773 unsigned long fore_pixel, pixel;
1775 if (!NILP (Vx_cursor_fore_pixel))
1776 fore_pixel = x_decode_color (f, Vx_cursor_fore_pixel,
1777 WHITE_PIX_DEFAULT (f));
1778 else
1779 fore_pixel = FRAME_BACKGROUND_PIXEL (f);
1781 pixel = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1783 /* Make sure that the cursor color differs from the background color. */
1784 if (pixel == FRAME_BACKGROUND_PIXEL (f))
1786 pixel = f->output_data.w32->mouse_pixel;
1787 if (pixel == fore_pixel)
1788 fore_pixel = FRAME_BACKGROUND_PIXEL (f);
1791 f->output_data.w32->cursor_foreground_pixel = fore_pixel;
1792 f->output_data.w32->cursor_pixel = pixel;
1794 if (FRAME_W32_WINDOW (f) != 0)
1796 BLOCK_INPUT;
1797 /* Update frame's cursor_gc. */
1798 f->output_data.w32->cursor_gc->foreground = fore_pixel;
1799 f->output_data.w32->cursor_gc->background = pixel;
1801 UNBLOCK_INPUT;
1803 if (FRAME_VISIBLE_P (f))
1805 x_update_cursor (f, 0);
1806 x_update_cursor (f, 1);
1810 update_face_from_frame_parameter (f, Qcursor_color, arg);
1813 /* Set the border-color of frame F to pixel value PIX.
1814 Note that this does not fully take effect if done before
1815 F has a window. */
1817 void
1818 x_set_border_pixel (f, pix)
1819 struct frame *f;
1820 int pix;
1823 f->output_data.w32->border_pixel = pix;
1825 if (FRAME_W32_WINDOW (f) != 0 && f->border_width > 0)
1827 if (FRAME_VISIBLE_P (f))
1828 redraw_frame (f);
1832 /* Set the border-color of frame F to value described by ARG.
1833 ARG can be a string naming a color.
1834 The border-color is used for the border that is drawn by the server.
1835 Note that this does not fully take effect if done before
1836 F has a window; it must be redone when the window is created. */
1838 void
1839 x_set_border_color (f, arg, oldval)
1840 struct frame *f;
1841 Lisp_Object arg, oldval;
1843 int pix;
1845 CHECK_STRING (arg);
1846 pix = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1847 x_set_border_pixel (f, pix);
1848 update_face_from_frame_parameter (f, Qborder_color, arg);
1852 void
1853 x_set_cursor_type (f, arg, oldval)
1854 FRAME_PTR f;
1855 Lisp_Object arg, oldval;
1857 set_frame_cursor_types (f, arg);
1859 /* Make sure the cursor gets redrawn. */
1860 cursor_type_changed = 1;
1863 void
1864 x_set_icon_type (f, arg, oldval)
1865 struct frame *f;
1866 Lisp_Object arg, oldval;
1868 int result;
1870 if (NILP (arg) && NILP (oldval))
1871 return;
1873 if (STRINGP (arg) && STRINGP (oldval)
1874 && EQ (Fstring_equal (oldval, arg), Qt))
1875 return;
1877 if (SYMBOLP (arg) && SYMBOLP (oldval) && EQ (arg, oldval))
1878 return;
1880 BLOCK_INPUT;
1882 result = x_bitmap_icon (f, arg);
1883 if (result)
1885 UNBLOCK_INPUT;
1886 error ("No icon window available");
1889 UNBLOCK_INPUT;
1892 void
1893 x_set_icon_name (f, arg, oldval)
1894 struct frame *f;
1895 Lisp_Object arg, oldval;
1897 if (STRINGP (arg))
1899 if (STRINGP (oldval) && EQ (Fstring_equal (oldval, arg), Qt))
1900 return;
1902 else if (!STRINGP (oldval) && EQ (oldval, Qnil) == EQ (arg, Qnil))
1903 return;
1905 f->icon_name = arg;
1907 #if 0
1908 if (f->output_data.w32->icon_bitmap != 0)
1909 return;
1911 BLOCK_INPUT;
1913 result = x_text_icon (f,
1914 (char *) SDATA ((!NILP (f->icon_name)
1915 ? f->icon_name
1916 : !NILP (f->title)
1917 ? f->title
1918 : f->name)));
1920 if (result)
1922 UNBLOCK_INPUT;
1923 error ("No icon window available");
1926 /* If the window was unmapped (and its icon was mapped),
1927 the new icon is not mapped, so map the window in its stead. */
1928 if (FRAME_VISIBLE_P (f))
1930 #ifdef USE_X_TOOLKIT
1931 XtPopup (f->output_data.w32->widget, XtGrabNone);
1932 #endif
1933 XMapWindow (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f));
1936 XFlush (FRAME_W32_DISPLAY (f));
1937 UNBLOCK_INPUT;
1938 #endif
1942 void
1943 x_set_menu_bar_lines (f, value, oldval)
1944 struct frame *f;
1945 Lisp_Object value, oldval;
1947 int nlines;
1948 int olines = FRAME_MENU_BAR_LINES (f);
1950 /* Right now, menu bars don't work properly in minibuf-only frames;
1951 most of the commands try to apply themselves to the minibuffer
1952 frame itself, and get an error because you can't switch buffers
1953 in or split the minibuffer window. */
1954 if (FRAME_MINIBUF_ONLY_P (f))
1955 return;
1957 if (INTEGERP (value))
1958 nlines = XINT (value);
1959 else
1960 nlines = 0;
1962 FRAME_MENU_BAR_LINES (f) = 0;
1963 if (nlines)
1964 FRAME_EXTERNAL_MENU_BAR (f) = 1;
1965 else
1967 if (FRAME_EXTERNAL_MENU_BAR (f) == 1)
1968 free_frame_menubar (f);
1969 FRAME_EXTERNAL_MENU_BAR (f) = 0;
1971 /* Adjust the frame size so that the client (text) dimensions
1972 remain the same. This depends on FRAME_EXTERNAL_MENU_BAR being
1973 set correctly. */
1974 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
1975 do_pending_window_change (0);
1977 adjust_glyphs (f);
1981 /* Set the number of lines used for the tool bar of frame F to VALUE.
1982 VALUE not an integer, or < 0 means set the lines to zero. OLDVAL
1983 is the old number of tool bar lines. This function changes the
1984 height of all windows on frame F to match the new tool bar height.
1985 The frame's height doesn't change. */
1987 void
1988 x_set_tool_bar_lines (f, value, oldval)
1989 struct frame *f;
1990 Lisp_Object value, oldval;
1992 int delta, nlines, root_height;
1993 Lisp_Object root_window;
1995 /* Treat tool bars like menu bars. */
1996 if (FRAME_MINIBUF_ONLY_P (f))
1997 return;
1999 /* Use VALUE only if an integer >= 0. */
2000 if (INTEGERP (value) && XINT (value) >= 0)
2001 nlines = XFASTINT (value);
2002 else
2003 nlines = 0;
2005 /* Make sure we redisplay all windows in this frame. */
2006 ++windows_or_buffers_changed;
2008 delta = nlines - FRAME_TOOL_BAR_LINES (f);
2010 /* Don't resize the tool-bar to more than we have room for. */
2011 root_window = FRAME_ROOT_WINDOW (f);
2012 root_height = WINDOW_TOTAL_LINES (XWINDOW (root_window));
2013 if (root_height - delta < 1)
2015 delta = root_height - 1;
2016 nlines = FRAME_TOOL_BAR_LINES (f) + delta;
2019 FRAME_TOOL_BAR_LINES (f) = nlines;
2020 change_window_heights (root_window, delta);
2021 adjust_glyphs (f);
2023 /* We also have to make sure that the internal border at the top of
2024 the frame, below the menu bar or tool bar, is redrawn when the
2025 tool bar disappears. This is so because the internal border is
2026 below the tool bar if one is displayed, but is below the menu bar
2027 if there isn't a tool bar. The tool bar draws into the area
2028 below the menu bar. */
2029 if (FRAME_W32_WINDOW (f) && FRAME_TOOL_BAR_LINES (f) == 0)
2031 updating_frame = f;
2032 clear_frame ();
2033 clear_current_matrices (f);
2034 updating_frame = NULL;
2037 /* If the tool bar gets smaller, the internal border below it
2038 has to be cleared. It was formerly part of the display
2039 of the larger tool bar, and updating windows won't clear it. */
2040 if (delta < 0)
2042 int height = FRAME_INTERNAL_BORDER_WIDTH (f);
2043 int width = FRAME_PIXEL_WIDTH (f);
2044 int y = nlines * FRAME_LINE_HEIGHT (f);
2046 BLOCK_INPUT;
2048 HDC hdc = get_frame_dc (f);
2049 w32_clear_area (f, hdc, 0, y, width, height);
2050 release_frame_dc (f, hdc);
2052 UNBLOCK_INPUT;
2054 if (WINDOWP (f->tool_bar_window))
2055 clear_glyph_matrix (XWINDOW (f->tool_bar_window)->current_matrix);
2060 /* Change the name of frame F to NAME. If NAME is nil, set F's name to
2061 w32_id_name.
2063 If EXPLICIT is non-zero, that indicates that lisp code is setting the
2064 name; if NAME is a string, set F's name to NAME and set
2065 F->explicit_name; if NAME is Qnil, then clear F->explicit_name.
2067 If EXPLICIT is zero, that indicates that Emacs redisplay code is
2068 suggesting a new name, which lisp code should override; if
2069 F->explicit_name is set, ignore the new name; otherwise, set it. */
2071 void
2072 x_set_name (f, name, explicit)
2073 struct frame *f;
2074 Lisp_Object name;
2075 int explicit;
2077 /* Make sure that requests from lisp code override requests from
2078 Emacs redisplay code. */
2079 if (explicit)
2081 /* If we're switching from explicit to implicit, we had better
2082 update the mode lines and thereby update the title. */
2083 if (f->explicit_name && NILP (name))
2084 update_mode_lines = 1;
2086 f->explicit_name = ! NILP (name);
2088 else if (f->explicit_name)
2089 return;
2091 /* If NAME is nil, set the name to the w32_id_name. */
2092 if (NILP (name))
2094 /* Check for no change needed in this very common case
2095 before we do any consing. */
2096 if (!strcmp (FRAME_W32_DISPLAY_INFO (f)->w32_id_name,
2097 SDATA (f->name)))
2098 return;
2099 name = build_string (FRAME_W32_DISPLAY_INFO (f)->w32_id_name);
2101 else
2102 CHECK_STRING (name);
2104 /* Don't change the name if it's already NAME. */
2105 if (! NILP (Fstring_equal (name, f->name)))
2106 return;
2108 f->name = name;
2110 /* For setting the frame title, the title parameter should override
2111 the name parameter. */
2112 if (! NILP (f->title))
2113 name = f->title;
2115 if (FRAME_W32_WINDOW (f))
2117 if (STRING_MULTIBYTE (name))
2118 name = ENCODE_SYSTEM (name);
2120 BLOCK_INPUT;
2121 SetWindowText(FRAME_W32_WINDOW (f), SDATA (name));
2122 UNBLOCK_INPUT;
2126 /* This function should be called when the user's lisp code has
2127 specified a name for the frame; the name will override any set by the
2128 redisplay code. */
2129 void
2130 x_explicitly_set_name (f, arg, oldval)
2131 FRAME_PTR f;
2132 Lisp_Object arg, oldval;
2134 x_set_name (f, arg, 1);
2137 /* This function should be called by Emacs redisplay code to set the
2138 name; names set this way will never override names set by the user's
2139 lisp code. */
2140 void
2141 x_implicitly_set_name (f, arg, oldval)
2142 FRAME_PTR f;
2143 Lisp_Object arg, oldval;
2145 x_set_name (f, arg, 0);
2148 /* Change the title of frame F to NAME.
2149 If NAME is nil, use the frame name as the title.
2151 If EXPLICIT is non-zero, that indicates that lisp code is setting the
2152 name; if NAME is a string, set F's name to NAME and set
2153 F->explicit_name; if NAME is Qnil, then clear F->explicit_name.
2155 If EXPLICIT is zero, that indicates that Emacs redisplay code is
2156 suggesting a new name, which lisp code should override; if
2157 F->explicit_name is set, ignore the new name; otherwise, set it. */
2159 void
2160 x_set_title (f, name, old_name)
2161 struct frame *f;
2162 Lisp_Object name, old_name;
2164 /* Don't change the title if it's already NAME. */
2165 if (EQ (name, f->title))
2166 return;
2168 update_mode_lines = 1;
2170 f->title = name;
2172 if (NILP (name))
2173 name = f->name;
2175 if (FRAME_W32_WINDOW (f))
2177 if (STRING_MULTIBYTE (name))
2178 name = ENCODE_SYSTEM (name);
2180 BLOCK_INPUT;
2181 SetWindowText(FRAME_W32_WINDOW (f), SDATA (name));
2182 UNBLOCK_INPUT;
2187 void x_set_scroll_bar_default_width (f)
2188 struct frame *f;
2190 int wid = FRAME_COLUMN_WIDTH (f);
2192 FRAME_CONFIG_SCROLL_BAR_WIDTH (f) = GetSystemMetrics (SM_CXVSCROLL);
2193 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) +
2194 wid - 1) / wid;
2198 /* Subroutines of creating a frame. */
2201 /* Return the value of parameter PARAM.
2203 First search ALIST, then Vdefault_frame_alist, then the X defaults
2204 database, using ATTRIBUTE as the attribute name and CLASS as its class.
2206 Convert the resource to the type specified by desired_type.
2208 If no default is specified, return Qunbound. If you call
2209 w32_get_arg, make sure you deal with Qunbound in a reasonable way,
2210 and don't let it get stored in any Lisp-visible variables! */
2212 static Lisp_Object
2213 w32_get_arg (alist, param, attribute, class, type)
2214 Lisp_Object alist, param;
2215 char *attribute;
2216 char *class;
2217 enum resource_types type;
2219 return x_get_arg (check_x_display_info (Qnil),
2220 alist, param, attribute, class, type);
2224 Cursor
2225 w32_load_cursor (LPCTSTR name)
2227 /* Try first to load cursor from application resource. */
2228 Cursor cursor = LoadImage ((HINSTANCE) GetModuleHandle(NULL),
2229 name, IMAGE_CURSOR, 0, 0,
2230 LR_DEFAULTCOLOR | LR_DEFAULTSIZE | LR_SHARED);
2231 if (!cursor)
2233 /* Then try to load a shared predefined cursor. */
2234 cursor = LoadImage (NULL, name, IMAGE_CURSOR, 0, 0,
2235 LR_DEFAULTCOLOR | LR_DEFAULTSIZE | LR_SHARED);
2237 return cursor;
2240 extern LRESULT CALLBACK w32_wnd_proc ();
2242 BOOL
2243 w32_init_class (hinst)
2244 HINSTANCE hinst;
2246 WNDCLASS wc;
2248 wc.style = CS_HREDRAW | CS_VREDRAW;
2249 wc.lpfnWndProc = (WNDPROC) w32_wnd_proc;
2250 wc.cbClsExtra = 0;
2251 wc.cbWndExtra = WND_EXTRA_BYTES;
2252 wc.hInstance = hinst;
2253 wc.hIcon = LoadIcon (hinst, EMACS_CLASS);
2254 wc.hCursor = w32_load_cursor (IDC_ARROW);
2255 wc.hbrBackground = NULL; /* GetStockObject (WHITE_BRUSH); */
2256 wc.lpszMenuName = NULL;
2257 wc.lpszClassName = EMACS_CLASS;
2259 return (RegisterClass (&wc));
2262 HWND
2263 w32_createscrollbar (f, bar)
2264 struct frame *f;
2265 struct scroll_bar * bar;
2267 return (CreateWindow ("SCROLLBAR", "", SBS_VERT | WS_CHILD | WS_VISIBLE,
2268 /* Position and size of scroll bar. */
2269 XINT(bar->left) + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
2270 XINT(bar->top),
2271 XINT(bar->width) - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
2272 XINT(bar->height),
2273 FRAME_W32_WINDOW (f),
2274 NULL,
2275 hinst,
2276 NULL));
2279 void
2280 w32_createwindow (f)
2281 struct frame *f;
2283 HWND hwnd;
2284 RECT rect;
2286 rect.left = rect.top = 0;
2287 rect.right = FRAME_PIXEL_WIDTH (f);
2288 rect.bottom = FRAME_PIXEL_HEIGHT (f);
2290 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
2291 FRAME_EXTERNAL_MENU_BAR (f));
2293 /* Do first time app init */
2295 if (!hprevinst)
2297 w32_init_class (hinst);
2300 FRAME_W32_WINDOW (f) = hwnd
2301 = CreateWindow (EMACS_CLASS,
2302 f->namebuf,
2303 f->output_data.w32->dwStyle | WS_CLIPCHILDREN,
2304 f->left_pos,
2305 f->top_pos,
2306 rect.right - rect.left,
2307 rect.bottom - rect.top,
2308 NULL,
2309 NULL,
2310 hinst,
2311 NULL);
2313 if (hwnd)
2315 SetWindowLong (hwnd, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
2316 SetWindowLong (hwnd, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
2317 SetWindowLong (hwnd, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
2318 SetWindowLong (hwnd, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
2319 SetWindowLong (hwnd, WND_BACKGROUND_INDEX, FRAME_BACKGROUND_PIXEL (f));
2321 /* Enable drag-n-drop. */
2322 DragAcceptFiles (hwnd, TRUE);
2324 /* Do this to discard the default setting specified by our parent. */
2325 ShowWindow (hwnd, SW_HIDE);
2329 void
2330 my_post_msg (wmsg, hwnd, msg, wParam, lParam)
2331 W32Msg * wmsg;
2332 HWND hwnd;
2333 UINT msg;
2334 WPARAM wParam;
2335 LPARAM lParam;
2337 wmsg->msg.hwnd = hwnd;
2338 wmsg->msg.message = msg;
2339 wmsg->msg.wParam = wParam;
2340 wmsg->msg.lParam = lParam;
2341 wmsg->msg.time = GetMessageTime ();
2343 post_msg (wmsg);
2346 /* GetKeyState and MapVirtualKey on Windows 95 do not actually distinguish
2347 between left and right keys as advertised. We test for this
2348 support dynamically, and set a flag when the support is absent. If
2349 absent, we keep track of the left and right control and alt keys
2350 ourselves. This is particularly necessary on keyboards that rely
2351 upon the AltGr key, which is represented as having the left control
2352 and right alt keys pressed. For these keyboards, we need to know
2353 when the left alt key has been pressed in addition to the AltGr key
2354 so that we can properly support M-AltGr-key sequences (such as M-@
2355 on Swedish keyboards). */
2357 #define EMACS_LCONTROL 0
2358 #define EMACS_RCONTROL 1
2359 #define EMACS_LMENU 2
2360 #define EMACS_RMENU 3
2362 static int modifiers[4];
2363 static int modifiers_recorded;
2364 static int modifier_key_support_tested;
2366 static void
2367 test_modifier_support (unsigned int wparam)
2369 unsigned int l, r;
2371 if (wparam != VK_CONTROL && wparam != VK_MENU)
2372 return;
2373 if (wparam == VK_CONTROL)
2375 l = VK_LCONTROL;
2376 r = VK_RCONTROL;
2378 else
2380 l = VK_LMENU;
2381 r = VK_RMENU;
2383 if (!(GetKeyState (l) & 0x8000) && !(GetKeyState (r) & 0x8000))
2384 modifiers_recorded = 1;
2385 else
2386 modifiers_recorded = 0;
2387 modifier_key_support_tested = 1;
2390 static void
2391 record_keydown (unsigned int wparam, unsigned int lparam)
2393 int i;
2395 if (!modifier_key_support_tested)
2396 test_modifier_support (wparam);
2398 if ((wparam != VK_CONTROL && wparam != VK_MENU) || !modifiers_recorded)
2399 return;
2401 if (wparam == VK_CONTROL)
2402 i = (lparam & 0x1000000) ? EMACS_RCONTROL : EMACS_LCONTROL;
2403 else
2404 i = (lparam & 0x1000000) ? EMACS_RMENU : EMACS_LMENU;
2406 modifiers[i] = 1;
2409 static void
2410 record_keyup (unsigned int wparam, unsigned int lparam)
2412 int i;
2414 if ((wparam != VK_CONTROL && wparam != VK_MENU) || !modifiers_recorded)
2415 return;
2417 if (wparam == VK_CONTROL)
2418 i = (lparam & 0x1000000) ? EMACS_RCONTROL : EMACS_LCONTROL;
2419 else
2420 i = (lparam & 0x1000000) ? EMACS_RMENU : EMACS_LMENU;
2422 modifiers[i] = 0;
2425 /* Emacs can lose focus while a modifier key has been pressed. When
2426 it regains focus, be conservative and clear all modifiers since
2427 we cannot reconstruct the left and right modifier state. */
2428 static void
2429 reset_modifiers ()
2431 SHORT ctrl, alt;
2433 if (GetFocus () == NULL)
2434 /* Emacs doesn't have keyboard focus. Do nothing. */
2435 return;
2437 ctrl = GetAsyncKeyState (VK_CONTROL);
2438 alt = GetAsyncKeyState (VK_MENU);
2440 if (!(ctrl & 0x08000))
2441 /* Clear any recorded control modifier state. */
2442 modifiers[EMACS_RCONTROL] = modifiers[EMACS_LCONTROL] = 0;
2444 if (!(alt & 0x08000))
2445 /* Clear any recorded alt modifier state. */
2446 modifiers[EMACS_RMENU] = modifiers[EMACS_LMENU] = 0;
2448 /* Update the state of all modifier keys, because modifiers used in
2449 hot-key combinations can get stuck on if Emacs loses focus as a
2450 result of a hot-key being pressed. */
2452 BYTE keystate[256];
2454 #define CURRENT_STATE(key) ((GetAsyncKeyState (key) & 0x8000) >> 8)
2456 GetKeyboardState (keystate);
2457 keystate[VK_SHIFT] = CURRENT_STATE (VK_SHIFT);
2458 keystate[VK_CONTROL] = CURRENT_STATE (VK_CONTROL);
2459 keystate[VK_LCONTROL] = CURRENT_STATE (VK_LCONTROL);
2460 keystate[VK_RCONTROL] = CURRENT_STATE (VK_RCONTROL);
2461 keystate[VK_MENU] = CURRENT_STATE (VK_MENU);
2462 keystate[VK_LMENU] = CURRENT_STATE (VK_LMENU);
2463 keystate[VK_RMENU] = CURRENT_STATE (VK_RMENU);
2464 keystate[VK_LWIN] = CURRENT_STATE (VK_LWIN);
2465 keystate[VK_RWIN] = CURRENT_STATE (VK_RWIN);
2466 keystate[VK_APPS] = CURRENT_STATE (VK_APPS);
2467 SetKeyboardState (keystate);
2471 /* Synchronize modifier state with what is reported with the current
2472 keystroke. Even if we cannot distinguish between left and right
2473 modifier keys, we know that, if no modifiers are set, then neither
2474 the left or right modifier should be set. */
2475 static void
2476 sync_modifiers ()
2478 if (!modifiers_recorded)
2479 return;
2481 if (!(GetKeyState (VK_CONTROL) & 0x8000))
2482 modifiers[EMACS_RCONTROL] = modifiers[EMACS_LCONTROL] = 0;
2484 if (!(GetKeyState (VK_MENU) & 0x8000))
2485 modifiers[EMACS_RMENU] = modifiers[EMACS_LMENU] = 0;
2488 static int
2489 modifier_set (int vkey)
2491 if (vkey == VK_CAPITAL || vkey == VK_SCROLL)
2492 return (GetKeyState (vkey) & 0x1);
2493 if (!modifiers_recorded)
2494 return (GetKeyState (vkey) & 0x8000);
2496 switch (vkey)
2498 case VK_LCONTROL:
2499 return modifiers[EMACS_LCONTROL];
2500 case VK_RCONTROL:
2501 return modifiers[EMACS_RCONTROL];
2502 case VK_LMENU:
2503 return modifiers[EMACS_LMENU];
2504 case VK_RMENU:
2505 return modifiers[EMACS_RMENU];
2507 return (GetKeyState (vkey) & 0x8000);
2510 /* Convert between the modifier bits W32 uses and the modifier bits
2511 Emacs uses. */
2513 unsigned int
2514 w32_key_to_modifier (int key)
2516 Lisp_Object key_mapping;
2518 switch (key)
2520 case VK_LWIN:
2521 key_mapping = Vw32_lwindow_modifier;
2522 break;
2523 case VK_RWIN:
2524 key_mapping = Vw32_rwindow_modifier;
2525 break;
2526 case VK_APPS:
2527 key_mapping = Vw32_apps_modifier;
2528 break;
2529 case VK_SCROLL:
2530 key_mapping = Vw32_scroll_lock_modifier;
2531 break;
2532 default:
2533 key_mapping = Qnil;
2536 /* NB. This code runs in the input thread, asychronously to the lisp
2537 thread, so we must be careful to ensure access to lisp data is
2538 thread-safe. The following code is safe because the modifier
2539 variable values are updated atomically from lisp and symbols are
2540 not relocated by GC. Also, we don't have to worry about seeing GC
2541 markbits here. */
2542 if (EQ (key_mapping, Qhyper))
2543 return hyper_modifier;
2544 if (EQ (key_mapping, Qsuper))
2545 return super_modifier;
2546 if (EQ (key_mapping, Qmeta))
2547 return meta_modifier;
2548 if (EQ (key_mapping, Qalt))
2549 return alt_modifier;
2550 if (EQ (key_mapping, Qctrl))
2551 return ctrl_modifier;
2552 if (EQ (key_mapping, Qcontrol)) /* synonym for ctrl */
2553 return ctrl_modifier;
2554 if (EQ (key_mapping, Qshift))
2555 return shift_modifier;
2557 /* Don't generate any modifier if not explicitly requested. */
2558 return 0;
2561 unsigned int
2562 w32_get_modifiers ()
2564 return ((modifier_set (VK_SHIFT) ? shift_modifier : 0) |
2565 (modifier_set (VK_CONTROL) ? ctrl_modifier : 0) |
2566 (modifier_set (VK_LWIN) ? w32_key_to_modifier (VK_LWIN) : 0) |
2567 (modifier_set (VK_RWIN) ? w32_key_to_modifier (VK_RWIN) : 0) |
2568 (modifier_set (VK_APPS) ? w32_key_to_modifier (VK_APPS) : 0) |
2569 (modifier_set (VK_SCROLL) ? w32_key_to_modifier (VK_SCROLL) : 0) |
2570 (modifier_set (VK_MENU) ?
2571 ((NILP (Vw32_alt_is_meta)) ? alt_modifier : meta_modifier) : 0));
2574 /* We map the VK_* modifiers into console modifier constants
2575 so that we can use the same routines to handle both console
2576 and window input. */
2578 static int
2579 construct_console_modifiers ()
2581 int mods;
2583 mods = 0;
2584 mods |= (modifier_set (VK_SHIFT)) ? SHIFT_PRESSED : 0;
2585 mods |= (modifier_set (VK_CAPITAL)) ? CAPSLOCK_ON : 0;
2586 mods |= (modifier_set (VK_SCROLL)) ? SCROLLLOCK_ON : 0;
2587 mods |= (modifier_set (VK_NUMLOCK)) ? NUMLOCK_ON : 0;
2588 mods |= (modifier_set (VK_LCONTROL)) ? LEFT_CTRL_PRESSED : 0;
2589 mods |= (modifier_set (VK_RCONTROL)) ? RIGHT_CTRL_PRESSED : 0;
2590 mods |= (modifier_set (VK_LMENU)) ? LEFT_ALT_PRESSED : 0;
2591 mods |= (modifier_set (VK_RMENU)) ? RIGHT_ALT_PRESSED : 0;
2592 mods |= (modifier_set (VK_LWIN)) ? LEFT_WIN_PRESSED : 0;
2593 mods |= (modifier_set (VK_RWIN)) ? RIGHT_WIN_PRESSED : 0;
2594 mods |= (modifier_set (VK_APPS)) ? APPS_PRESSED : 0;
2596 return mods;
2599 static int
2600 w32_get_key_modifiers (unsigned int wparam, unsigned int lparam)
2602 int mods;
2604 /* Convert to emacs modifiers. */
2605 mods = w32_kbd_mods_to_emacs (construct_console_modifiers (), wparam);
2607 return mods;
2610 unsigned int
2611 map_keypad_keys (unsigned int virt_key, unsigned int extended)
2613 if (virt_key < VK_CLEAR || virt_key > VK_DELETE)
2614 return virt_key;
2616 if (virt_key == VK_RETURN)
2617 return (extended ? VK_NUMPAD_ENTER : VK_RETURN);
2619 if (virt_key >= VK_PRIOR && virt_key <= VK_DOWN)
2620 return (!extended ? (VK_NUMPAD_PRIOR + (virt_key - VK_PRIOR)) : virt_key);
2622 if (virt_key == VK_INSERT || virt_key == VK_DELETE)
2623 return (!extended ? (VK_NUMPAD_INSERT + (virt_key - VK_INSERT)) : virt_key);
2625 if (virt_key == VK_CLEAR)
2626 return (!extended ? VK_NUMPAD_CLEAR : virt_key);
2628 return virt_key;
2631 /* List of special key combinations which w32 would normally capture,
2632 but emacs should grab instead. Not directly visible to lisp, to
2633 simplify synchronization. Each item is an integer encoding a virtual
2634 key code and modifier combination to capture. */
2635 Lisp_Object w32_grabbed_keys;
2637 #define HOTKEY(vk,mods) make_number (((vk) & 255) | ((mods) << 8))
2638 #define HOTKEY_ID(k) (XFASTINT (k) & 0xbfff)
2639 #define HOTKEY_VK_CODE(k) (XFASTINT (k) & 255)
2640 #define HOTKEY_MODIFIERS(k) (XFASTINT (k) >> 8)
2642 /* Register hot-keys for reserved key combinations when Emacs has
2643 keyboard focus, since this is the only way Emacs can receive key
2644 combinations like Alt-Tab which are used by the system. */
2646 static void
2647 register_hot_keys (hwnd)
2648 HWND hwnd;
2650 Lisp_Object keylist;
2652 /* Use GC_CONSP, since we are called asynchronously. */
2653 for (keylist = w32_grabbed_keys; GC_CONSP (keylist); keylist = XCDR (keylist))
2655 Lisp_Object key = XCAR (keylist);
2657 /* Deleted entries get set to nil. */
2658 if (!INTEGERP (key))
2659 continue;
2661 RegisterHotKey (hwnd, HOTKEY_ID (key),
2662 HOTKEY_MODIFIERS (key), HOTKEY_VK_CODE (key));
2666 static void
2667 unregister_hot_keys (hwnd)
2668 HWND hwnd;
2670 Lisp_Object keylist;
2672 /* Use GC_CONSP, since we are called asynchronously. */
2673 for (keylist = w32_grabbed_keys; GC_CONSP (keylist); keylist = XCDR (keylist))
2675 Lisp_Object key = XCAR (keylist);
2677 if (!INTEGERP (key))
2678 continue;
2680 UnregisterHotKey (hwnd, HOTKEY_ID (key));
2684 /* Main message dispatch loop. */
2686 static void
2687 w32_msg_pump (deferred_msg * msg_buf)
2689 MSG msg;
2690 int result;
2691 HWND focus_window;
2693 msh_mousewheel = RegisterWindowMessage (MSH_MOUSEWHEEL);
2695 while (GetMessage (&msg, NULL, 0, 0))
2697 if (msg.hwnd == NULL)
2699 switch (msg.message)
2701 case WM_NULL:
2702 /* Produced by complete_deferred_msg; just ignore. */
2703 break;
2704 case WM_EMACS_CREATEWINDOW:
2705 w32_createwindow ((struct frame *) msg.wParam);
2706 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2707 abort ();
2708 break;
2709 case WM_EMACS_SETLOCALE:
2710 SetThreadLocale (msg.wParam);
2711 /* Reply is not expected. */
2712 break;
2713 case WM_EMACS_SETKEYBOARDLAYOUT:
2714 result = (int) ActivateKeyboardLayout ((HKL) msg.wParam, 0);
2715 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE,
2716 result, 0))
2717 abort ();
2718 break;
2719 case WM_EMACS_REGISTER_HOT_KEY:
2720 focus_window = GetFocus ();
2721 if (focus_window != NULL)
2722 RegisterHotKey (focus_window,
2723 HOTKEY_ID (msg.wParam),
2724 HOTKEY_MODIFIERS (msg.wParam),
2725 HOTKEY_VK_CODE (msg.wParam));
2726 /* Reply is not expected. */
2727 break;
2728 case WM_EMACS_UNREGISTER_HOT_KEY:
2729 focus_window = GetFocus ();
2730 if (focus_window != NULL)
2731 UnregisterHotKey (focus_window, HOTKEY_ID (msg.wParam));
2732 /* Mark item as erased. NB: this code must be
2733 thread-safe. The next line is okay because the cons
2734 cell is never made into garbage and is not relocated by
2735 GC. */
2736 XSETCAR ((Lisp_Object) msg.lParam, Qnil);
2737 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2738 abort ();
2739 break;
2740 case WM_EMACS_TOGGLE_LOCK_KEY:
2742 int vk_code = (int) msg.wParam;
2743 int cur_state = (GetKeyState (vk_code) & 1);
2744 Lisp_Object new_state = (Lisp_Object) msg.lParam;
2746 /* NB: This code must be thread-safe. It is safe to
2747 call NILP because symbols are not relocated by GC,
2748 and pointer here is not touched by GC (so the markbit
2749 can't be set). Numbers are safe because they are
2750 immediate values. */
2751 if (NILP (new_state)
2752 || (NUMBERP (new_state)
2753 && ((XUINT (new_state)) & 1) != cur_state))
2755 one_w32_display_info.faked_key = vk_code;
2757 keybd_event ((BYTE) vk_code,
2758 (BYTE) MapVirtualKey (vk_code, 0),
2759 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2760 keybd_event ((BYTE) vk_code,
2761 (BYTE) MapVirtualKey (vk_code, 0),
2762 KEYEVENTF_EXTENDEDKEY | 0, 0);
2763 keybd_event ((BYTE) vk_code,
2764 (BYTE) MapVirtualKey (vk_code, 0),
2765 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2766 cur_state = !cur_state;
2768 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE,
2769 cur_state, 0))
2770 abort ();
2772 break;
2773 default:
2774 DebPrint (("msg %x not expected by w32_msg_pump\n", msg.message));
2777 else
2779 DispatchMessage (&msg);
2782 /* Exit nested loop when our deferred message has completed. */
2783 if (msg_buf->completed)
2784 break;
2788 deferred_msg * deferred_msg_head;
2790 static deferred_msg *
2791 find_deferred_msg (HWND hwnd, UINT msg)
2793 deferred_msg * item;
2795 /* Don't actually need synchronization for read access, since
2796 modification of single pointer is always atomic. */
2797 /* enter_crit (); */
2799 for (item = deferred_msg_head; item != NULL; item = item->next)
2800 if (item->w32msg.msg.hwnd == hwnd
2801 && item->w32msg.msg.message == msg)
2802 break;
2804 /* leave_crit (); */
2806 return item;
2809 static LRESULT
2810 send_deferred_msg (deferred_msg * msg_buf,
2811 HWND hwnd,
2812 UINT msg,
2813 WPARAM wParam,
2814 LPARAM lParam)
2816 /* Only input thread can send deferred messages. */
2817 if (GetCurrentThreadId () != dwWindowsThreadId)
2818 abort ();
2820 /* It is an error to send a message that is already deferred. */
2821 if (find_deferred_msg (hwnd, msg) != NULL)
2822 abort ();
2824 /* Enforced synchronization is not needed because this is the only
2825 function that alters deferred_msg_head, and the following critical
2826 section is guaranteed to only be serially reentered (since only the
2827 input thread can call us). */
2829 /* enter_crit (); */
2831 msg_buf->completed = 0;
2832 msg_buf->next = deferred_msg_head;
2833 deferred_msg_head = msg_buf;
2834 my_post_msg (&msg_buf->w32msg, hwnd, msg, wParam, lParam);
2836 /* leave_crit (); */
2838 /* Start a new nested message loop to process other messages until
2839 this one is completed. */
2840 w32_msg_pump (msg_buf);
2842 deferred_msg_head = msg_buf->next;
2844 return msg_buf->result;
2847 void
2848 complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result)
2850 deferred_msg * msg_buf = find_deferred_msg (hwnd, msg);
2852 if (msg_buf == NULL)
2853 /* Message may have been cancelled, so don't abort(). */
2854 return;
2856 msg_buf->result = result;
2857 msg_buf->completed = 1;
2859 /* Ensure input thread is woken so it notices the completion. */
2860 PostThreadMessage (dwWindowsThreadId, WM_NULL, 0, 0);
2863 void
2864 cancel_all_deferred_msgs ()
2866 deferred_msg * item;
2868 /* Don't actually need synchronization for read access, since
2869 modification of single pointer is always atomic. */
2870 /* enter_crit (); */
2872 for (item = deferred_msg_head; item != NULL; item = item->next)
2874 item->result = 0;
2875 item->completed = 1;
2878 /* leave_crit (); */
2880 /* Ensure input thread is woken so it notices the completion. */
2881 PostThreadMessage (dwWindowsThreadId, WM_NULL, 0, 0);
2884 DWORD
2885 w32_msg_worker (dw)
2886 DWORD dw;
2888 MSG msg;
2889 deferred_msg dummy_buf;
2891 /* Ensure our message queue is created */
2893 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
2895 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2896 abort ();
2898 memset (&dummy_buf, 0, sizeof (dummy_buf));
2899 dummy_buf.w32msg.msg.hwnd = NULL;
2900 dummy_buf.w32msg.msg.message = WM_NULL;
2902 /* This is the inital message loop which should only exit when the
2903 application quits. */
2904 w32_msg_pump (&dummy_buf);
2906 return 0;
2909 static void
2910 post_character_message (hwnd, msg, wParam, lParam, modifiers)
2911 HWND hwnd;
2912 UINT msg;
2913 WPARAM wParam;
2914 LPARAM lParam;
2915 DWORD modifiers;
2918 W32Msg wmsg;
2920 wmsg.dwModifiers = modifiers;
2922 /* Detect quit_char and set quit-flag directly. Note that we
2923 still need to post a message to ensure the main thread will be
2924 woken up if blocked in sys_select(), but we do NOT want to post
2925 the quit_char message itself (because it will usually be as if
2926 the user had typed quit_char twice). Instead, we post a dummy
2927 message that has no particular effect. */
2929 int c = wParam;
2930 if (isalpha (c) && wmsg.dwModifiers == ctrl_modifier)
2931 c = make_ctrl_char (c) & 0377;
2932 if (c == quit_char
2933 || (wmsg.dwModifiers == 0 &&
2934 XFASTINT (Vw32_quit_key) && wParam == XFASTINT (Vw32_quit_key)))
2936 Vquit_flag = Qt;
2938 /* The choice of message is somewhat arbitrary, as long as
2939 the main thread handler just ignores it. */
2940 msg = WM_NULL;
2942 /* Interrupt any blocking system calls. */
2943 signal_quit ();
2945 /* As a safety precaution, forcibly complete any deferred
2946 messages. This is a kludge, but I don't see any particularly
2947 clean way to handle the situation where a deferred message is
2948 "dropped" in the lisp thread, and will thus never be
2949 completed, eg. by the user trying to activate the menubar
2950 when the lisp thread is busy, and then typing C-g when the
2951 menubar doesn't open promptly (with the result that the
2952 menubar never responds at all because the deferred
2953 WM_INITMENU message is never completed). Another problem
2954 situation is when the lisp thread calls SendMessage (to send
2955 a window manager command) when a message has been deferred;
2956 the lisp thread gets blocked indefinitely waiting for the
2957 deferred message to be completed, which itself is waiting for
2958 the lisp thread to respond.
2960 Note that we don't want to block the input thread waiting for
2961 a reponse from the lisp thread (although that would at least
2962 solve the deadlock problem above), because we want to be able
2963 to receive C-g to interrupt the lisp thread. */
2964 cancel_all_deferred_msgs ();
2968 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
2971 /* Main window procedure */
2973 LRESULT CALLBACK
2974 w32_wnd_proc (hwnd, msg, wParam, lParam)
2975 HWND hwnd;
2976 UINT msg;
2977 WPARAM wParam;
2978 LPARAM lParam;
2980 struct frame *f;
2981 struct w32_display_info *dpyinfo = &one_w32_display_info;
2982 W32Msg wmsg;
2983 int windows_translate;
2984 int key;
2986 /* Note that it is okay to call x_window_to_frame, even though we are
2987 not running in the main lisp thread, because frame deletion
2988 requires the lisp thread to synchronize with this thread. Thus, if
2989 a frame struct is returned, it can be used without concern that the
2990 lisp thread might make it disappear while we are using it.
2992 NB. Walking the frame list in this thread is safe (as long as
2993 writes of Lisp_Object slots are atomic, which they are on Windows).
2994 Although delete-frame can destructively modify the frame list while
2995 we are walking it, a garbage collection cannot occur until after
2996 delete-frame has synchronized with this thread.
2998 It is also safe to use functions that make GDI calls, such as
2999 w32_clear_rect, because these functions must obtain a DC handle
3000 from the frame struct using get_frame_dc which is thread-aware. */
3002 switch (msg)
3004 case WM_ERASEBKGND:
3005 f = x_window_to_frame (dpyinfo, hwnd);
3006 if (f)
3008 HDC hdc = get_frame_dc (f);
3009 GetUpdateRect (hwnd, &wmsg.rect, FALSE);
3010 w32_clear_rect (f, hdc, &wmsg.rect);
3011 release_frame_dc (f, hdc);
3013 #if defined (W32_DEBUG_DISPLAY)
3014 DebPrint (("WM_ERASEBKGND (frame %p): erasing %d,%d-%d,%d\n",
3016 wmsg.rect.left, wmsg.rect.top,
3017 wmsg.rect.right, wmsg.rect.bottom));
3018 #endif /* W32_DEBUG_DISPLAY */
3020 return 1;
3021 case WM_PALETTECHANGED:
3022 /* ignore our own changes */
3023 if ((HWND)wParam != hwnd)
3025 f = x_window_to_frame (dpyinfo, hwnd);
3026 if (f)
3027 /* get_frame_dc will realize our palette and force all
3028 frames to be redrawn if needed. */
3029 release_frame_dc (f, get_frame_dc (f));
3031 return 0;
3032 case WM_PAINT:
3034 PAINTSTRUCT paintStruct;
3035 RECT update_rect;
3036 bzero (&update_rect, sizeof (update_rect));
3038 f = x_window_to_frame (dpyinfo, hwnd);
3039 if (f == 0)
3041 DebPrint (("WM_PAINT received for unknown window %p\n", hwnd));
3042 return 0;
3045 /* MSDN Docs say not to call BeginPaint if GetUpdateRect
3046 fails. Apparently this can happen under some
3047 circumstances. */
3048 if (GetUpdateRect (hwnd, &update_rect, FALSE) || !w32_strict_painting)
3050 enter_crit ();
3051 BeginPaint (hwnd, &paintStruct);
3053 /* The rectangles returned by GetUpdateRect and BeginPaint
3054 do not always match. Play it safe by assuming both areas
3055 are invalid. */
3056 UnionRect (&(wmsg.rect), &update_rect, &(paintStruct.rcPaint));
3058 #if defined (W32_DEBUG_DISPLAY)
3059 DebPrint (("WM_PAINT (frame %p): painting %d,%d-%d,%d\n",
3061 wmsg.rect.left, wmsg.rect.top,
3062 wmsg.rect.right, wmsg.rect.bottom));
3063 DebPrint ((" [update region is %d,%d-%d,%d]\n",
3064 update_rect.left, update_rect.top,
3065 update_rect.right, update_rect.bottom));
3066 #endif
3067 EndPaint (hwnd, &paintStruct);
3068 leave_crit ();
3070 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3072 return 0;
3075 /* If GetUpdateRect returns 0 (meaning there is no update
3076 region), assume the whole window needs to be repainted. */
3077 GetClientRect(hwnd, &wmsg.rect);
3078 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3079 return 0;
3082 case WM_INPUTLANGCHANGE:
3083 /* Inform lisp thread of keyboard layout changes. */
3084 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3086 /* Clear dead keys in the keyboard state; for simplicity only
3087 preserve modifier key states. */
3089 int i;
3090 BYTE keystate[256];
3092 GetKeyboardState (keystate);
3093 for (i = 0; i < 256; i++)
3094 if (1
3095 && i != VK_SHIFT
3096 && i != VK_LSHIFT
3097 && i != VK_RSHIFT
3098 && i != VK_CAPITAL
3099 && i != VK_NUMLOCK
3100 && i != VK_SCROLL
3101 && i != VK_CONTROL
3102 && i != VK_LCONTROL
3103 && i != VK_RCONTROL
3104 && i != VK_MENU
3105 && i != VK_LMENU
3106 && i != VK_RMENU
3107 && i != VK_LWIN
3108 && i != VK_RWIN)
3109 keystate[i] = 0;
3110 SetKeyboardState (keystate);
3112 goto dflt;
3114 case WM_HOTKEY:
3115 /* Synchronize hot keys with normal input. */
3116 PostMessage (hwnd, WM_KEYDOWN, HIWORD (lParam), 0);
3117 return (0);
3119 case WM_KEYUP:
3120 case WM_SYSKEYUP:
3121 record_keyup (wParam, lParam);
3122 goto dflt;
3124 case WM_KEYDOWN:
3125 case WM_SYSKEYDOWN:
3126 /* Ignore keystrokes we fake ourself; see below. */
3127 if (dpyinfo->faked_key == wParam)
3129 dpyinfo->faked_key = 0;
3130 /* Make sure TranslateMessage sees them though (as long as
3131 they don't produce WM_CHAR messages). This ensures that
3132 indicator lights are toggled promptly on Windows 9x, for
3133 example. */
3134 if (lispy_function_keys[wParam] != 0)
3136 windows_translate = 1;
3137 goto translate;
3139 return 0;
3142 /* Synchronize modifiers with current keystroke. */
3143 sync_modifiers ();
3144 record_keydown (wParam, lParam);
3145 wParam = map_keypad_keys (wParam, (lParam & 0x1000000L) != 0);
3147 windows_translate = 0;
3149 switch (wParam)
3151 case VK_LWIN:
3152 if (NILP (Vw32_pass_lwindow_to_system))
3154 /* Prevent system from acting on keyup (which opens the
3155 Start menu if no other key was pressed) by simulating a
3156 press of Space which we will ignore. */
3157 if (GetAsyncKeyState (wParam) & 1)
3159 if (NUMBERP (Vw32_phantom_key_code))
3160 key = XUINT (Vw32_phantom_key_code) & 255;
3161 else
3162 key = VK_SPACE;
3163 dpyinfo->faked_key = key;
3164 keybd_event (key, (BYTE) MapVirtualKey (key, 0), 0, 0);
3167 if (!NILP (Vw32_lwindow_modifier))
3168 return 0;
3169 break;
3170 case VK_RWIN:
3171 if (NILP (Vw32_pass_rwindow_to_system))
3173 if (GetAsyncKeyState (wParam) & 1)
3175 if (NUMBERP (Vw32_phantom_key_code))
3176 key = XUINT (Vw32_phantom_key_code) & 255;
3177 else
3178 key = VK_SPACE;
3179 dpyinfo->faked_key = key;
3180 keybd_event (key, (BYTE) MapVirtualKey (key, 0), 0, 0);
3183 if (!NILP (Vw32_rwindow_modifier))
3184 return 0;
3185 break;
3186 case VK_APPS:
3187 if (!NILP (Vw32_apps_modifier))
3188 return 0;
3189 break;
3190 case VK_MENU:
3191 if (NILP (Vw32_pass_alt_to_system))
3192 /* Prevent DefWindowProc from activating the menu bar if an
3193 Alt key is pressed and released by itself. */
3194 return 0;
3195 windows_translate = 1;
3196 break;
3197 case VK_CAPITAL:
3198 /* Decide whether to treat as modifier or function key. */
3199 if (NILP (Vw32_enable_caps_lock))
3200 goto disable_lock_key;
3201 windows_translate = 1;
3202 break;
3203 case VK_NUMLOCK:
3204 /* Decide whether to treat as modifier or function key. */
3205 if (NILP (Vw32_enable_num_lock))
3206 goto disable_lock_key;
3207 windows_translate = 1;
3208 break;
3209 case VK_SCROLL:
3210 /* Decide whether to treat as modifier or function key. */
3211 if (NILP (Vw32_scroll_lock_modifier))
3212 goto disable_lock_key;
3213 windows_translate = 1;
3214 break;
3215 disable_lock_key:
3216 /* Ensure the appropriate lock key state (and indicator light)
3217 remains in the same state. We do this by faking another
3218 press of the relevant key. Apparently, this really is the
3219 only way to toggle the state of the indicator lights. */
3220 dpyinfo->faked_key = wParam;
3221 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
3222 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
3223 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
3224 KEYEVENTF_EXTENDEDKEY | 0, 0);
3225 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
3226 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
3227 /* Ensure indicator lights are updated promptly on Windows 9x
3228 (TranslateMessage apparently does this), after forwarding
3229 input event. */
3230 post_character_message (hwnd, msg, wParam, lParam,
3231 w32_get_key_modifiers (wParam, lParam));
3232 windows_translate = 1;
3233 break;
3234 case VK_CONTROL:
3235 case VK_SHIFT:
3236 case VK_PROCESSKEY: /* Generated by IME. */
3237 windows_translate = 1;
3238 break;
3239 case VK_CANCEL:
3240 /* Windows maps Ctrl-Pause (aka Ctrl-Break) into VK_CANCEL,
3241 which is confusing for purposes of key binding; convert
3242 VK_CANCEL events into VK_PAUSE events. */
3243 wParam = VK_PAUSE;
3244 break;
3245 case VK_PAUSE:
3246 /* Windows maps Ctrl-NumLock into VK_PAUSE, which is confusing
3247 for purposes of key binding; convert these back into
3248 VK_NUMLOCK events, at least when we want to see NumLock key
3249 presses. (Note that there is never any possibility that
3250 VK_PAUSE with Ctrl really is C-Pause as per above.) */
3251 if (NILP (Vw32_enable_num_lock) && modifier_set (VK_CONTROL))
3252 wParam = VK_NUMLOCK;
3253 break;
3254 default:
3255 /* If not defined as a function key, change it to a WM_CHAR message. */
3256 if (lispy_function_keys[wParam] == 0)
3258 DWORD modifiers = construct_console_modifiers ();
3260 if (!NILP (Vw32_recognize_altgr)
3261 && modifier_set (VK_LCONTROL) && modifier_set (VK_RMENU))
3263 /* Always let TranslateMessage handle AltGr key chords;
3264 for some reason, ToAscii doesn't always process AltGr
3265 chords correctly. */
3266 windows_translate = 1;
3268 else if ((modifiers & (~SHIFT_PRESSED & ~CAPSLOCK_ON)) != 0)
3270 /* Handle key chords including any modifiers other
3271 than shift directly, in order to preserve as much
3272 modifier information as possible. */
3273 if ('A' <= wParam && wParam <= 'Z')
3275 /* Don't translate modified alphabetic keystrokes,
3276 so the user doesn't need to constantly switch
3277 layout to type control or meta keystrokes when
3278 the normal layout translates alphabetic
3279 characters to non-ascii characters. */
3280 if (!modifier_set (VK_SHIFT))
3281 wParam += ('a' - 'A');
3282 msg = WM_CHAR;
3284 else
3286 /* Try to handle other keystrokes by determining the
3287 base character (ie. translating the base key plus
3288 shift modifier). */
3289 int add;
3290 int isdead = 0;
3291 KEY_EVENT_RECORD key;
3293 key.bKeyDown = TRUE;
3294 key.wRepeatCount = 1;
3295 key.wVirtualKeyCode = wParam;
3296 key.wVirtualScanCode = (lParam & 0xFF0000) >> 16;
3297 key.uChar.AsciiChar = 0;
3298 key.dwControlKeyState = modifiers;
3300 add = w32_kbd_patch_key (&key);
3301 /* 0 means an unrecognised keycode, negative means
3302 dead key. Ignore both. */
3303 while (--add >= 0)
3305 /* Forward asciified character sequence. */
3306 post_character_message
3307 (hwnd, WM_CHAR, key.uChar.AsciiChar, lParam,
3308 w32_get_key_modifiers (wParam, lParam));
3309 w32_kbd_patch_key (&key);
3311 return 0;
3314 else
3316 /* Let TranslateMessage handle everything else. */
3317 windows_translate = 1;
3322 translate:
3323 if (windows_translate)
3325 MSG windows_msg = { hwnd, msg, wParam, lParam, 0, {0,0} };
3327 windows_msg.time = GetMessageTime ();
3328 TranslateMessage (&windows_msg);
3329 goto dflt;
3332 /* Fall through */
3334 case WM_SYSCHAR:
3335 case WM_CHAR:
3336 post_character_message (hwnd, msg, wParam, lParam,
3337 w32_get_key_modifiers (wParam, lParam));
3338 break;
3340 /* Simulate middle mouse button events when left and right buttons
3341 are used together, but only if user has two button mouse. */
3342 case WM_LBUTTONDOWN:
3343 case WM_RBUTTONDOWN:
3344 if (XINT (Vw32_num_mouse_buttons) > 2)
3345 goto handle_plain_button;
3348 int this = (msg == WM_LBUTTONDOWN) ? LMOUSE : RMOUSE;
3349 int other = (msg == WM_LBUTTONDOWN) ? RMOUSE : LMOUSE;
3351 if (button_state & this)
3352 return 0;
3354 if (button_state == 0)
3355 SetCapture (hwnd);
3357 button_state |= this;
3359 if (button_state & other)
3361 if (mouse_button_timer)
3363 KillTimer (hwnd, mouse_button_timer);
3364 mouse_button_timer = 0;
3366 /* Generate middle mouse event instead. */
3367 msg = WM_MBUTTONDOWN;
3368 button_state |= MMOUSE;
3370 else if (button_state & MMOUSE)
3372 /* Ignore button event if we've already generated a
3373 middle mouse down event. This happens if the
3374 user releases and press one of the two buttons
3375 after we've faked a middle mouse event. */
3376 return 0;
3378 else
3380 /* Flush out saved message. */
3381 post_msg (&saved_mouse_button_msg);
3383 wmsg.dwModifiers = w32_get_modifiers ();
3384 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3386 /* Clear message buffer. */
3387 saved_mouse_button_msg.msg.hwnd = 0;
3389 else
3391 /* Hold onto message for now. */
3392 mouse_button_timer =
3393 SetTimer (hwnd, MOUSE_BUTTON_ID,
3394 XINT (Vw32_mouse_button_tolerance), NULL);
3395 saved_mouse_button_msg.msg.hwnd = hwnd;
3396 saved_mouse_button_msg.msg.message = msg;
3397 saved_mouse_button_msg.msg.wParam = wParam;
3398 saved_mouse_button_msg.msg.lParam = lParam;
3399 saved_mouse_button_msg.msg.time = GetMessageTime ();
3400 saved_mouse_button_msg.dwModifiers = w32_get_modifiers ();
3403 return 0;
3405 case WM_LBUTTONUP:
3406 case WM_RBUTTONUP:
3407 if (XINT (Vw32_num_mouse_buttons) > 2)
3408 goto handle_plain_button;
3411 int this = (msg == WM_LBUTTONUP) ? LMOUSE : RMOUSE;
3412 int other = (msg == WM_LBUTTONUP) ? RMOUSE : LMOUSE;
3414 if ((button_state & this) == 0)
3415 return 0;
3417 button_state &= ~this;
3419 if (button_state & MMOUSE)
3421 /* Only generate event when second button is released. */
3422 if ((button_state & other) == 0)
3424 msg = WM_MBUTTONUP;
3425 button_state &= ~MMOUSE;
3427 if (button_state) abort ();
3429 else
3430 return 0;
3432 else
3434 /* Flush out saved message if necessary. */
3435 if (saved_mouse_button_msg.msg.hwnd)
3437 post_msg (&saved_mouse_button_msg);
3440 wmsg.dwModifiers = w32_get_modifiers ();
3441 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3443 /* Always clear message buffer and cancel timer. */
3444 saved_mouse_button_msg.msg.hwnd = 0;
3445 KillTimer (hwnd, mouse_button_timer);
3446 mouse_button_timer = 0;
3448 if (button_state == 0)
3449 ReleaseCapture ();
3451 return 0;
3453 case WM_XBUTTONDOWN:
3454 case WM_XBUTTONUP:
3455 if (w32_pass_extra_mouse_buttons_to_system)
3456 goto dflt;
3457 /* else fall through and process them. */
3458 case WM_MBUTTONDOWN:
3459 case WM_MBUTTONUP:
3460 handle_plain_button:
3462 BOOL up;
3463 int button;
3465 if (parse_button (msg, HIWORD (wParam), &button, &up))
3467 if (up) ReleaseCapture ();
3468 else SetCapture (hwnd);
3469 button = (button == 0) ? LMOUSE :
3470 ((button == 1) ? MMOUSE : RMOUSE);
3471 if (up)
3472 button_state &= ~button;
3473 else
3474 button_state |= button;
3478 wmsg.dwModifiers = w32_get_modifiers ();
3479 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3481 /* Need to return true for XBUTTON messages, false for others,
3482 to indicate that we processed the message. */
3483 return (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONUP);
3485 case WM_MOUSEMOVE:
3486 /* If the mouse has just moved into the frame, start tracking
3487 it, so we will be notified when it leaves the frame. Mouse
3488 tracking only works under W98 and NT4 and later. On earlier
3489 versions, there is no way of telling when the mouse leaves the
3490 frame, so we just have to put up with help-echo and mouse
3491 highlighting remaining while the frame is not active. */
3492 if (track_mouse_event_fn && !track_mouse_window)
3494 TRACKMOUSEEVENT tme;
3495 tme.cbSize = sizeof (tme);
3496 tme.dwFlags = TME_LEAVE;
3497 tme.hwndTrack = hwnd;
3499 track_mouse_event_fn (&tme);
3500 track_mouse_window = hwnd;
3502 case WM_VSCROLL:
3503 if (XINT (Vw32_mouse_move_interval) <= 0
3504 || (msg == WM_MOUSEMOVE && button_state == 0))
3506 wmsg.dwModifiers = w32_get_modifiers ();
3507 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3508 return 0;
3511 /* Hang onto mouse move and scroll messages for a bit, to avoid
3512 sending such events to Emacs faster than it can process them.
3513 If we get more events before the timer from the first message
3514 expires, we just replace the first message. */
3516 if (saved_mouse_move_msg.msg.hwnd == 0)
3517 mouse_move_timer =
3518 SetTimer (hwnd, MOUSE_MOVE_ID,
3519 XINT (Vw32_mouse_move_interval), NULL);
3521 /* Hold onto message for now. */
3522 saved_mouse_move_msg.msg.hwnd = hwnd;
3523 saved_mouse_move_msg.msg.message = msg;
3524 saved_mouse_move_msg.msg.wParam = wParam;
3525 saved_mouse_move_msg.msg.lParam = lParam;
3526 saved_mouse_move_msg.msg.time = GetMessageTime ();
3527 saved_mouse_move_msg.dwModifiers = w32_get_modifiers ();
3529 return 0;
3531 case WM_MOUSEWHEEL:
3532 wmsg.dwModifiers = w32_get_modifiers ();
3533 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3534 return 0;
3536 case WM_DROPFILES:
3537 wmsg.dwModifiers = w32_get_modifiers ();
3538 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3539 return 0;
3541 case WM_TIMER:
3542 /* Flush out saved messages if necessary. */
3543 if (wParam == mouse_button_timer)
3545 if (saved_mouse_button_msg.msg.hwnd)
3547 post_msg (&saved_mouse_button_msg);
3548 saved_mouse_button_msg.msg.hwnd = 0;
3550 KillTimer (hwnd, mouse_button_timer);
3551 mouse_button_timer = 0;
3553 else if (wParam == mouse_move_timer)
3555 if (saved_mouse_move_msg.msg.hwnd)
3557 post_msg (&saved_mouse_move_msg);
3558 saved_mouse_move_msg.msg.hwnd = 0;
3560 KillTimer (hwnd, mouse_move_timer);
3561 mouse_move_timer = 0;
3563 else if (wParam == menu_free_timer)
3565 KillTimer (hwnd, menu_free_timer);
3566 menu_free_timer = 0;
3567 f = x_window_to_frame (dpyinfo, hwnd);
3568 if (!f->output_data.w32->menu_command_in_progress)
3570 /* Free memory used by owner-drawn and help-echo strings. */
3571 w32_free_menu_strings (hwnd);
3572 f->output_data.w32->menubar_active = 0;
3575 return 0;
3577 case WM_NCACTIVATE:
3578 /* Windows doesn't send us focus messages when putting up and
3579 taking down a system popup dialog as for Ctrl-Alt-Del on Windows 95.
3580 The only indication we get that something happened is receiving
3581 this message afterwards. So this is a good time to reset our
3582 keyboard modifiers' state. */
3583 reset_modifiers ();
3584 goto dflt;
3586 case WM_INITMENU:
3587 button_state = 0;
3588 ReleaseCapture ();
3589 /* We must ensure menu bar is fully constructed and up to date
3590 before allowing user interaction with it. To achieve this
3591 we send this message to the lisp thread and wait for a
3592 reply (whose value is not actually needed) to indicate that
3593 the menu bar is now ready for use, so we can now return.
3595 To remain responsive in the meantime, we enter a nested message
3596 loop that can process all other messages.
3598 However, we skip all this if the message results from calling
3599 TrackPopupMenu - in fact, we must NOT attempt to send the lisp
3600 thread a message because it is blocked on us at this point. We
3601 set menubar_active before calling TrackPopupMenu to indicate
3602 this (there is no possibility of confusion with real menubar
3603 being active). */
3605 f = x_window_to_frame (dpyinfo, hwnd);
3606 if (f
3607 && (f->output_data.w32->menubar_active
3608 /* We can receive this message even in the absence of a
3609 menubar (ie. when the system menu is activated) - in this
3610 case we do NOT want to forward the message, otherwise it
3611 will cause the menubar to suddenly appear when the user
3612 had requested it to be turned off! */
3613 || f->output_data.w32->menubar_widget == NULL))
3614 return 0;
3617 deferred_msg msg_buf;
3619 /* Detect if message has already been deferred; in this case
3620 we cannot return any sensible value to ignore this. */
3621 if (find_deferred_msg (hwnd, msg) != NULL)
3622 abort ();
3624 return send_deferred_msg (&msg_buf, hwnd, msg, wParam, lParam);
3627 case WM_EXITMENULOOP:
3628 f = x_window_to_frame (dpyinfo, hwnd);
3630 /* If a menu command is not already in progress, check again
3631 after a short delay, since Windows often (always?) sends the
3632 WM_EXITMENULOOP before the corresponding WM_COMMAND message. */
3633 if (f && !f->output_data.w32->menu_command_in_progress)
3634 menu_free_timer = SetTimer (hwnd, MENU_FREE_ID, MENU_FREE_DELAY, NULL);
3635 goto dflt;
3637 case WM_MENUSELECT:
3638 /* Direct handling of help_echo in menus. Should be safe now
3639 that we generate the help_echo by placing a help event in the
3640 keyboard buffer. */
3642 HMENU menu = (HMENU) lParam;
3643 UINT menu_item = (UINT) LOWORD (wParam);
3644 UINT flags = (UINT) HIWORD (wParam);
3646 w32_menu_display_help (hwnd, menu, menu_item, flags);
3648 return 0;
3650 case WM_MEASUREITEM:
3651 f = x_window_to_frame (dpyinfo, hwnd);
3652 if (f)
3654 MEASUREITEMSTRUCT * pMis = (MEASUREITEMSTRUCT *) lParam;
3656 if (pMis->CtlType == ODT_MENU)
3658 /* Work out dimensions for popup menu titles. */
3659 char * title = (char *) pMis->itemData;
3660 HDC hdc = GetDC (hwnd);
3661 HFONT menu_font = GetCurrentObject (hdc, OBJ_FONT);
3662 LOGFONT menu_logfont;
3663 HFONT old_font;
3664 SIZE size;
3666 GetObject (menu_font, sizeof (menu_logfont), &menu_logfont);
3667 menu_logfont.lfWeight = FW_BOLD;
3668 menu_font = CreateFontIndirect (&menu_logfont);
3669 old_font = SelectObject (hdc, menu_font);
3671 pMis->itemHeight = GetSystemMetrics (SM_CYMENUSIZE);
3672 if (title)
3674 GetTextExtentPoint32 (hdc, title, strlen (title), &size);
3675 pMis->itemWidth = size.cx;
3676 if (pMis->itemHeight < size.cy)
3677 pMis->itemHeight = size.cy;
3679 else
3680 pMis->itemWidth = 0;
3682 SelectObject (hdc, old_font);
3683 DeleteObject (menu_font);
3684 ReleaseDC (hwnd, hdc);
3685 return TRUE;
3688 return 0;
3690 case WM_DRAWITEM:
3691 f = x_window_to_frame (dpyinfo, hwnd);
3692 if (f)
3694 DRAWITEMSTRUCT * pDis = (DRAWITEMSTRUCT *) lParam;
3696 if (pDis->CtlType == ODT_MENU)
3698 /* Draw popup menu title. */
3699 char * title = (char *) pDis->itemData;
3700 if (title)
3702 HDC hdc = pDis->hDC;
3703 HFONT menu_font = GetCurrentObject (hdc, OBJ_FONT);
3704 LOGFONT menu_logfont;
3705 HFONT old_font;
3707 GetObject (menu_font, sizeof (menu_logfont), &menu_logfont);
3708 menu_logfont.lfWeight = FW_BOLD;
3709 menu_font = CreateFontIndirect (&menu_logfont);
3710 old_font = SelectObject (hdc, menu_font);
3712 /* Always draw title as if not selected. */
3713 ExtTextOut (hdc,
3714 pDis->rcItem.left
3715 + GetSystemMetrics (SM_CXMENUCHECK),
3716 pDis->rcItem.top,
3717 ETO_OPAQUE, &pDis->rcItem,
3718 title, strlen (title), NULL);
3720 SelectObject (hdc, old_font);
3721 DeleteObject (menu_font);
3723 return TRUE;
3726 return 0;
3728 #if 0
3729 /* Still not right - can't distinguish between clicks in the
3730 client area of the frame from clicks forwarded from the scroll
3731 bars - may have to hook WM_NCHITTEST to remember the mouse
3732 position and then check if it is in the client area ourselves. */
3733 case WM_MOUSEACTIVATE:
3734 /* Discard the mouse click that activates a frame, allowing the
3735 user to click anywhere without changing point (or worse!).
3736 Don't eat mouse clicks on scrollbars though!! */
3737 if (LOWORD (lParam) == HTCLIENT )
3738 return MA_ACTIVATEANDEAT;
3739 goto dflt;
3740 #endif
3742 case WM_MOUSELEAVE:
3743 /* No longer tracking mouse. */
3744 track_mouse_window = NULL;
3746 case WM_ACTIVATEAPP:
3747 case WM_ACTIVATE:
3748 case WM_WINDOWPOSCHANGED:
3749 case WM_SHOWWINDOW:
3750 /* Inform lisp thread that a frame might have just been obscured
3751 or exposed, so should recheck visibility of all frames. */
3752 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3753 goto dflt;
3755 case WM_SETFOCUS:
3756 dpyinfo->faked_key = 0;
3757 reset_modifiers ();
3758 register_hot_keys (hwnd);
3759 goto command;
3760 case WM_KILLFOCUS:
3761 unregister_hot_keys (hwnd);
3762 button_state = 0;
3763 ReleaseCapture ();
3764 /* Relinquish the system caret. */
3765 if (w32_system_caret_hwnd)
3767 w32_visible_system_caret_hwnd = NULL;
3768 w32_system_caret_hwnd = NULL;
3769 DestroyCaret ();
3771 goto command;
3772 case WM_COMMAND:
3773 f = x_window_to_frame (dpyinfo, hwnd);
3774 if (f && HIWORD (wParam) == 0)
3776 f->output_data.w32->menu_command_in_progress = 1;
3777 if (menu_free_timer)
3779 KillTimer (hwnd, menu_free_timer);
3780 menu_free_timer = 0;
3783 case WM_MOVE:
3784 case WM_SIZE:
3785 command:
3786 wmsg.dwModifiers = w32_get_modifiers ();
3787 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3788 goto dflt;
3790 case WM_CLOSE:
3791 wmsg.dwModifiers = w32_get_modifiers ();
3792 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3793 return 0;
3795 case WM_WINDOWPOSCHANGING:
3796 /* Don't restrict the sizing of tip frames. */
3797 if (hwnd == tip_window)
3798 return 0;
3800 WINDOWPLACEMENT wp;
3801 LPWINDOWPOS lppos = (WINDOWPOS *) lParam;
3803 wp.length = sizeof (WINDOWPLACEMENT);
3804 GetWindowPlacement (hwnd, &wp);
3806 if (wp.showCmd != SW_SHOWMINIMIZED && (lppos->flags & SWP_NOSIZE) == 0)
3808 RECT rect;
3809 int wdiff;
3810 int hdiff;
3811 DWORD font_width;
3812 DWORD line_height;
3813 DWORD internal_border;
3814 DWORD scrollbar_extra;
3815 RECT wr;
3817 wp.length = sizeof(wp);
3818 GetWindowRect (hwnd, &wr);
3820 enter_crit ();
3822 font_width = GetWindowLong (hwnd, WND_FONTWIDTH_INDEX);
3823 line_height = GetWindowLong (hwnd, WND_LINEHEIGHT_INDEX);
3824 internal_border = GetWindowLong (hwnd, WND_BORDER_INDEX);
3825 scrollbar_extra = GetWindowLong (hwnd, WND_SCROLLBAR_INDEX);
3827 leave_crit ();
3829 memset (&rect, 0, sizeof (rect));
3830 AdjustWindowRect (&rect, GetWindowLong (hwnd, GWL_STYLE),
3831 GetMenu (hwnd) != NULL);
3833 /* Force width and height of client area to be exact
3834 multiples of the character cell dimensions. */
3835 wdiff = (lppos->cx - (rect.right - rect.left)
3836 - 2 * internal_border - scrollbar_extra)
3837 % font_width;
3838 hdiff = (lppos->cy - (rect.bottom - rect.top)
3839 - 2 * internal_border)
3840 % line_height;
3842 if (wdiff || hdiff)
3844 /* For right/bottom sizing we can just fix the sizes.
3845 However for top/left sizing we will need to fix the X
3846 and Y positions as well. */
3848 lppos->cx -= wdiff;
3849 lppos->cy -= hdiff;
3851 if (wp.showCmd != SW_SHOWMAXIMIZED
3852 && (lppos->flags & SWP_NOMOVE) == 0)
3854 if (lppos->x != wr.left || lppos->y != wr.top)
3856 lppos->x += wdiff;
3857 lppos->y += hdiff;
3859 else
3861 lppos->flags |= SWP_NOMOVE;
3865 return 0;
3870 goto dflt;
3872 case WM_GETMINMAXINFO:
3873 /* Hack to correct bug that allows Emacs frames to be resized
3874 below the Minimum Tracking Size. */
3875 ((LPMINMAXINFO) lParam)->ptMinTrackSize.y++;
3876 /* Hack to allow resizing the Emacs frame above the screen size.
3877 Note that Windows 9x limits coordinates to 16-bits. */
3878 ((LPMINMAXINFO) lParam)->ptMaxTrackSize.x = 32767;
3879 ((LPMINMAXINFO) lParam)->ptMaxTrackSize.y = 32767;
3880 return 0;
3882 case WM_SETCURSOR:
3883 if (LOWORD (lParam) == HTCLIENT)
3884 return 0;
3886 goto dflt;
3888 case WM_EMACS_SETCURSOR:
3890 Cursor cursor = (Cursor) wParam;
3891 if (cursor)
3892 SetCursor (cursor);
3893 return 0;
3896 case WM_EMACS_CREATESCROLLBAR:
3897 return (LRESULT) w32_createscrollbar ((struct frame *) wParam,
3898 (struct scroll_bar *) lParam);
3900 case WM_EMACS_SHOWWINDOW:
3901 return ShowWindow ((HWND) wParam, (WPARAM) lParam);
3903 case WM_EMACS_SETFOREGROUND:
3905 HWND foreground_window;
3906 DWORD foreground_thread, retval;
3908 /* On NT 5.0, and apparently Windows 98, it is necessary to
3909 attach to the thread that currently has focus in order to
3910 pull the focus away from it. */
3911 foreground_window = GetForegroundWindow ();
3912 foreground_thread = GetWindowThreadProcessId (foreground_window, NULL);
3913 if (!foreground_window
3914 || foreground_thread == GetCurrentThreadId ()
3915 || !AttachThreadInput (GetCurrentThreadId (),
3916 foreground_thread, TRUE))
3917 foreground_thread = 0;
3919 retval = SetForegroundWindow ((HWND) wParam);
3921 /* Detach from the previous foreground thread. */
3922 if (foreground_thread)
3923 AttachThreadInput (GetCurrentThreadId (),
3924 foreground_thread, FALSE);
3926 return retval;
3929 case WM_EMACS_SETWINDOWPOS:
3931 WINDOWPOS * pos = (WINDOWPOS *) wParam;
3932 return SetWindowPos (hwnd, pos->hwndInsertAfter,
3933 pos->x, pos->y, pos->cx, pos->cy, pos->flags);
3936 case WM_EMACS_DESTROYWINDOW:
3937 DragAcceptFiles ((HWND) wParam, FALSE);
3938 return DestroyWindow ((HWND) wParam);
3940 case WM_EMACS_HIDE_CARET:
3941 return HideCaret (hwnd);
3943 case WM_EMACS_SHOW_CARET:
3944 return ShowCaret (hwnd);
3946 case WM_EMACS_DESTROY_CARET:
3947 w32_system_caret_hwnd = NULL;
3948 w32_visible_system_caret_hwnd = NULL;
3949 return DestroyCaret ();
3951 case WM_EMACS_TRACK_CARET:
3952 /* If there is currently no system caret, create one. */
3953 if (w32_system_caret_hwnd == NULL)
3955 /* Use the default caret width, and avoid changing it
3956 unneccesarily, as it confuses screen reader software. */
3957 w32_system_caret_hwnd = hwnd;
3958 CreateCaret (hwnd, NULL, 0,
3959 w32_system_caret_height);
3962 if (!SetCaretPos (w32_system_caret_x, w32_system_caret_y))
3963 return 0;
3964 /* Ensure visible caret gets turned on when requested. */
3965 else if (w32_use_visible_system_caret
3966 && w32_visible_system_caret_hwnd != hwnd)
3968 w32_visible_system_caret_hwnd = hwnd;
3969 return ShowCaret (hwnd);
3971 /* Ensure visible caret gets turned off when requested. */
3972 else if (!w32_use_visible_system_caret
3973 && w32_visible_system_caret_hwnd)
3975 w32_visible_system_caret_hwnd = NULL;
3976 return HideCaret (hwnd);
3978 else
3979 return 1;
3981 case WM_EMACS_TRACKPOPUPMENU:
3983 UINT flags;
3984 POINT *pos;
3985 int retval;
3986 pos = (POINT *)lParam;
3987 flags = TPM_CENTERALIGN;
3988 if (button_state & LMOUSE)
3989 flags |= TPM_LEFTBUTTON;
3990 else if (button_state & RMOUSE)
3991 flags |= TPM_RIGHTBUTTON;
3993 /* Remember we did a SetCapture on the initial mouse down event,
3994 so for safety, we make sure the capture is cancelled now. */
3995 ReleaseCapture ();
3996 button_state = 0;
3998 /* Use menubar_active to indicate that WM_INITMENU is from
3999 TrackPopupMenu below, and should be ignored. */
4000 f = x_window_to_frame (dpyinfo, hwnd);
4001 if (f)
4002 f->output_data.w32->menubar_active = 1;
4004 if (TrackPopupMenu ((HMENU)wParam, flags, pos->x, pos->y,
4005 0, hwnd, NULL))
4007 MSG amsg;
4008 /* Eat any mouse messages during popupmenu */
4009 while (PeekMessage (&amsg, hwnd, WM_MOUSEFIRST, WM_MOUSELAST,
4010 PM_REMOVE));
4011 /* Get the menu selection, if any */
4012 if (PeekMessage (&amsg, hwnd, WM_COMMAND, WM_COMMAND, PM_REMOVE))
4014 retval = LOWORD (amsg.wParam);
4016 else
4018 retval = 0;
4021 else
4023 retval = -1;
4026 return retval;
4029 default:
4030 /* Check for messages registered at runtime. */
4031 if (msg == msh_mousewheel)
4033 wmsg.dwModifiers = w32_get_modifiers ();
4034 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
4035 return 0;
4038 dflt:
4039 return DefWindowProc (hwnd, msg, wParam, lParam);
4043 /* The most common default return code for handled messages is 0. */
4044 return 0;
4047 void
4048 my_create_window (f)
4049 struct frame * f;
4051 MSG msg;
4053 if (!PostThreadMessage (dwWindowsThreadId, WM_EMACS_CREATEWINDOW, (WPARAM)f, 0))
4054 abort ();
4055 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
4059 /* Create a tooltip window. Unlike my_create_window, we do not do this
4060 indirectly via the Window thread, as we do not need to process Window
4061 messages for the tooltip. Creating tooltips indirectly also creates
4062 deadlocks when tooltips are created for menu items. */
4063 void
4064 my_create_tip_window (f)
4065 struct frame *f;
4067 RECT rect;
4069 rect.left = rect.top = 0;
4070 rect.right = FRAME_PIXEL_WIDTH (f);
4071 rect.bottom = FRAME_PIXEL_HEIGHT (f);
4073 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
4074 FRAME_EXTERNAL_MENU_BAR (f));
4076 tip_window = FRAME_W32_WINDOW (f)
4077 = CreateWindow (EMACS_CLASS,
4078 f->namebuf,
4079 f->output_data.w32->dwStyle,
4080 f->left_pos,
4081 f->top_pos,
4082 rect.right - rect.left,
4083 rect.bottom - rect.top,
4084 FRAME_W32_WINDOW (SELECTED_FRAME ()), /* owner */
4085 NULL,
4086 hinst,
4087 NULL);
4089 if (tip_window)
4091 SetWindowLong (tip_window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
4092 SetWindowLong (tip_window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
4093 SetWindowLong (tip_window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
4094 SetWindowLong (tip_window, WND_BACKGROUND_INDEX, FRAME_BACKGROUND_PIXEL (f));
4096 /* Tip frames have no scrollbars. */
4097 SetWindowLong (tip_window, WND_SCROLLBAR_INDEX, 0);
4099 /* Do this to discard the default setting specified by our parent. */
4100 ShowWindow (tip_window, SW_HIDE);
4105 /* Create and set up the w32 window for frame F. */
4107 static void
4108 w32_window (f, window_prompting, minibuffer_only)
4109 struct frame *f;
4110 long window_prompting;
4111 int minibuffer_only;
4113 BLOCK_INPUT;
4115 /* Use the resource name as the top-level window name
4116 for looking up resources. Make a non-Lisp copy
4117 for the window manager, so GC relocation won't bother it.
4119 Elsewhere we specify the window name for the window manager. */
4122 char *str = (char *) SDATA (Vx_resource_name);
4123 f->namebuf = (char *) xmalloc (strlen (str) + 1);
4124 strcpy (f->namebuf, str);
4127 my_create_window (f);
4129 validate_x_resource_name ();
4131 /* x_set_name normally ignores requests to set the name if the
4132 requested name is the same as the current name. This is the one
4133 place where that assumption isn't correct; f->name is set, but
4134 the server hasn't been told. */
4136 Lisp_Object name;
4137 int explicit = f->explicit_name;
4139 f->explicit_name = 0;
4140 name = f->name;
4141 f->name = Qnil;
4142 x_set_name (f, name, explicit);
4145 UNBLOCK_INPUT;
4147 if (!minibuffer_only && FRAME_EXTERNAL_MENU_BAR (f))
4148 initialize_frame_menubar (f);
4150 if (FRAME_W32_WINDOW (f) == 0)
4151 error ("Unable to create window");
4154 /* Handle the icon stuff for this window. Perhaps later we might
4155 want an x_set_icon_position which can be called interactively as
4156 well. */
4158 static void
4159 x_icon (f, parms)
4160 struct frame *f;
4161 Lisp_Object parms;
4163 Lisp_Object icon_x, icon_y;
4165 /* Set the position of the icon. Note that Windows 95 groups all
4166 icons in the tray. */
4167 icon_x = w32_get_arg (parms, Qicon_left, 0, 0, RES_TYPE_NUMBER);
4168 icon_y = w32_get_arg (parms, Qicon_top, 0, 0, RES_TYPE_NUMBER);
4169 if (!EQ (icon_x, Qunbound) && !EQ (icon_y, Qunbound))
4171 CHECK_NUMBER (icon_x);
4172 CHECK_NUMBER (icon_y);
4174 else if (!EQ (icon_x, Qunbound) || !EQ (icon_y, Qunbound))
4175 error ("Both left and top icon corners of icon must be specified");
4177 BLOCK_INPUT;
4179 if (! EQ (icon_x, Qunbound))
4180 x_wm_set_icon_position (f, XINT (icon_x), XINT (icon_y));
4182 #if 0 /* TODO */
4183 /* Start up iconic or window? */
4184 x_wm_set_window_state
4185 (f, (EQ (w32_get_arg (parms, Qvisibility, 0, 0, RES_TYPE_SYMBOL), Qicon)
4186 ? IconicState
4187 : NormalState));
4189 x_text_icon (f, (char *) SDATA ((!NILP (f->icon_name)
4190 ? f->icon_name
4191 : f->name)));
4192 #endif
4194 UNBLOCK_INPUT;
4198 static void
4199 x_make_gc (f)
4200 struct frame *f;
4202 XGCValues gc_values;
4204 BLOCK_INPUT;
4206 /* Create the GC's of this frame.
4207 Note that many default values are used. */
4209 /* Normal video */
4210 gc_values.font = FRAME_FONT (f);
4212 /* Cursor has cursor-color background, background-color foreground. */
4213 gc_values.foreground = FRAME_BACKGROUND_PIXEL (f);
4214 gc_values.background = f->output_data.w32->cursor_pixel;
4215 f->output_data.w32->cursor_gc
4216 = XCreateGC (NULL, FRAME_W32_WINDOW (f),
4217 (GCFont | GCForeground | GCBackground),
4218 &gc_values);
4220 /* Reliefs. */
4221 f->output_data.w32->white_relief.gc = 0;
4222 f->output_data.w32->black_relief.gc = 0;
4224 UNBLOCK_INPUT;
4228 /* Handler for signals raised during x_create_frame and
4229 x_create_top_frame. FRAME is the frame which is partially
4230 constructed. */
4232 static Lisp_Object
4233 unwind_create_frame (frame)
4234 Lisp_Object frame;
4236 struct frame *f = XFRAME (frame);
4238 /* If frame is ``official'', nothing to do. */
4239 if (!CONSP (Vframe_list) || !EQ (XCAR (Vframe_list), frame))
4241 #ifdef GLYPH_DEBUG
4242 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
4243 #endif
4245 x_free_frame_resources (f);
4247 /* Check that reference counts are indeed correct. */
4248 xassert (dpyinfo->reference_count == dpyinfo_refcount);
4249 xassert (dpyinfo->image_cache->refcount == image_cache_refcount);
4251 return Qt;
4254 return Qnil;
4258 DEFUN ("x-create-frame", Fx_create_frame, Sx_create_frame,
4259 1, 1, 0,
4260 doc: /* Make a new window, which is called a \"frame\" in Emacs terms.
4261 Returns an Emacs frame object.
4262 ALIST is an alist of frame parameters.
4263 If the parameters specify that the frame should not have a minibuffer,
4264 and do not specify a specific minibuffer window to use,
4265 then `default-minibuffer-frame' must be a frame whose minibuffer can
4266 be shared by the new frame.
4268 This function is an internal primitive--use `make-frame' instead. */)
4269 (parms)
4270 Lisp_Object parms;
4272 struct frame *f;
4273 Lisp_Object frame, tem;
4274 Lisp_Object name;
4275 int minibuffer_only = 0;
4276 long window_prompting = 0;
4277 int width, height;
4278 int count = SPECPDL_INDEX ();
4279 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
4280 Lisp_Object display;
4281 struct w32_display_info *dpyinfo = NULL;
4282 Lisp_Object parent;
4283 struct kboard *kb;
4285 check_w32 ();
4287 /* Use this general default value to start with
4288 until we know if this frame has a specified name. */
4289 Vx_resource_name = Vinvocation_name;
4291 display = w32_get_arg (parms, Qdisplay, 0, 0, RES_TYPE_STRING);
4292 if (EQ (display, Qunbound))
4293 display = Qnil;
4294 dpyinfo = check_x_display_info (display);
4295 #ifdef MULTI_KBOARD
4296 kb = dpyinfo->kboard;
4297 #else
4298 kb = &the_only_kboard;
4299 #endif
4301 name = w32_get_arg (parms, Qname, "name", "Name", RES_TYPE_STRING);
4302 if (!STRINGP (name)
4303 && ! EQ (name, Qunbound)
4304 && ! NILP (name))
4305 error ("Invalid frame name--not a string or nil");
4307 if (STRINGP (name))
4308 Vx_resource_name = name;
4310 /* See if parent window is specified. */
4311 parent = w32_get_arg (parms, Qparent_id, NULL, NULL, RES_TYPE_NUMBER);
4312 if (EQ (parent, Qunbound))
4313 parent = Qnil;
4314 if (! NILP (parent))
4315 CHECK_NUMBER (parent);
4317 /* make_frame_without_minibuffer can run Lisp code and garbage collect. */
4318 /* No need to protect DISPLAY because that's not used after passing
4319 it to make_frame_without_minibuffer. */
4320 frame = Qnil;
4321 GCPRO4 (parms, parent, name, frame);
4322 tem = w32_get_arg (parms, Qminibuffer, "minibuffer", "Minibuffer",
4323 RES_TYPE_SYMBOL);
4324 if (EQ (tem, Qnone) || NILP (tem))
4325 f = make_frame_without_minibuffer (Qnil, kb, display);
4326 else if (EQ (tem, Qonly))
4328 f = make_minibuffer_frame ();
4329 minibuffer_only = 1;
4331 else if (WINDOWP (tem))
4332 f = make_frame_without_minibuffer (tem, kb, display);
4333 else
4334 f = make_frame (1);
4336 XSETFRAME (frame, f);
4338 /* Note that Windows does support scroll bars. */
4339 FRAME_CAN_HAVE_SCROLL_BARS (f) = 1;
4341 /* By default, make scrollbars the system standard width. */
4342 FRAME_CONFIG_SCROLL_BAR_WIDTH (f) = GetSystemMetrics (SM_CXVSCROLL);
4344 f->output_method = output_w32;
4345 f->output_data.w32 =
4346 (struct w32_output *) xmalloc (sizeof (struct w32_output));
4347 bzero (f->output_data.w32, sizeof (struct w32_output));
4348 FRAME_FONTSET (f) = -1;
4349 record_unwind_protect (unwind_create_frame, frame);
4351 f->icon_name
4352 = w32_get_arg (parms, Qicon_name, "iconName", "Title", RES_TYPE_STRING);
4353 if (! STRINGP (f->icon_name))
4354 f->icon_name = Qnil;
4356 /* FRAME_W32_DISPLAY_INFO (f) = dpyinfo; */
4357 #ifdef MULTI_KBOARD
4358 FRAME_KBOARD (f) = kb;
4359 #endif
4361 /* Specify the parent under which to make this window. */
4363 if (!NILP (parent))
4365 f->output_data.w32->parent_desc = (Window) XFASTINT (parent);
4366 f->output_data.w32->explicit_parent = 1;
4368 else
4370 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
4371 f->output_data.w32->explicit_parent = 0;
4374 /* Set the name; the functions to which we pass f expect the name to
4375 be set. */
4376 if (EQ (name, Qunbound) || NILP (name))
4378 f->name = build_string (dpyinfo->w32_id_name);
4379 f->explicit_name = 0;
4381 else
4383 f->name = name;
4384 f->explicit_name = 1;
4385 /* use the frame's title when getting resources for this frame. */
4386 specbind (Qx_resource_name, name);
4389 /* Extract the window parameters from the supplied values
4390 that are needed to determine window geometry. */
4392 Lisp_Object font;
4394 font = w32_get_arg (parms, Qfont, "font", "Font", RES_TYPE_STRING);
4396 BLOCK_INPUT;
4397 /* First, try whatever font the caller has specified. */
4398 if (STRINGP (font))
4400 tem = Fquery_fontset (font, Qnil);
4401 if (STRINGP (tem))
4402 font = x_new_fontset (f, SDATA (tem));
4403 else
4404 font = x_new_font (f, SDATA (font));
4406 /* Try out a font which we hope has bold and italic variations. */
4407 if (!STRINGP (font))
4408 font = x_new_font (f, "-*-Courier New-normal-r-*-*-*-100-*-*-c-*-iso8859-1");
4409 if (! STRINGP (font))
4410 font = x_new_font (f, "-*-Courier-normal-r-*-*-13-*-*-*-c-*-iso8859-1");
4411 /* If those didn't work, look for something which will at least work. */
4412 if (! STRINGP (font))
4413 font = x_new_font (f, "-*-Fixedsys-normal-r-*-*-12-*-*-*-c-*-iso8859-1");
4414 UNBLOCK_INPUT;
4415 if (! STRINGP (font))
4416 font = build_string ("Fixedsys");
4418 x_default_parameter (f, parms, Qfont, font,
4419 "font", "Font", RES_TYPE_STRING);
4422 x_default_parameter (f, parms, Qborder_width, make_number (2),
4423 "borderWidth", "BorderWidth", RES_TYPE_NUMBER);
4424 /* This defaults to 2 in order to match xterm. We recognize either
4425 internalBorderWidth or internalBorder (which is what xterm calls
4426 it). */
4427 if (NILP (Fassq (Qinternal_border_width, parms)))
4429 Lisp_Object value;
4431 value = w32_get_arg (parms, Qinternal_border_width,
4432 "internalBorder", "InternalBorder", RES_TYPE_NUMBER);
4433 if (! EQ (value, Qunbound))
4434 parms = Fcons (Fcons (Qinternal_border_width, value),
4435 parms);
4437 /* Default internalBorderWidth to 0 on Windows to match other programs. */
4438 x_default_parameter (f, parms, Qinternal_border_width, make_number (0),
4439 "internalBorderWidth", "InternalBorder", RES_TYPE_NUMBER);
4440 x_default_parameter (f, parms, Qvertical_scroll_bars, Qright,
4441 "verticalScrollBars", "ScrollBars", RES_TYPE_SYMBOL);
4443 /* Also do the stuff which must be set before the window exists. */
4444 x_default_parameter (f, parms, Qforeground_color, build_string ("black"),
4445 "foreground", "Foreground", RES_TYPE_STRING);
4446 x_default_parameter (f, parms, Qbackground_color, build_string ("white"),
4447 "background", "Background", RES_TYPE_STRING);
4448 x_default_parameter (f, parms, Qmouse_color, build_string ("black"),
4449 "pointerColor", "Foreground", RES_TYPE_STRING);
4450 x_default_parameter (f, parms, Qcursor_color, build_string ("black"),
4451 "cursorColor", "Foreground", RES_TYPE_STRING);
4452 x_default_parameter (f, parms, Qborder_color, build_string ("black"),
4453 "borderColor", "BorderColor", RES_TYPE_STRING);
4454 x_default_parameter (f, parms, Qscreen_gamma, Qnil,
4455 "screenGamma", "ScreenGamma", RES_TYPE_FLOAT);
4456 x_default_parameter (f, parms, Qline_spacing, Qnil,
4457 "lineSpacing", "LineSpacing", RES_TYPE_NUMBER);
4458 x_default_parameter (f, parms, Qleft_fringe, Qnil,
4459 "leftFringe", "LeftFringe", RES_TYPE_NUMBER);
4460 x_default_parameter (f, parms, Qright_fringe, Qnil,
4461 "rightFringe", "RightFringe", RES_TYPE_NUMBER);
4464 /* Init faces before x_default_parameter is called for scroll-bar
4465 parameters because that function calls x_set_scroll_bar_width,
4466 which calls change_frame_size, which calls Fset_window_buffer,
4467 which runs hooks, which call Fvertical_motion. At the end, we
4468 end up in init_iterator with a null face cache, which should not
4469 happen. */
4470 init_frame_faces (f);
4472 x_default_parameter (f, parms, Qmenu_bar_lines, make_number (1),
4473 "menuBar", "MenuBar", RES_TYPE_NUMBER);
4474 x_default_parameter (f, parms, Qtool_bar_lines, make_number (1),
4475 "toolBar", "ToolBar", RES_TYPE_NUMBER);
4477 x_default_parameter (f, parms, Qbuffer_predicate, Qnil,
4478 "bufferPredicate", "BufferPredicate", RES_TYPE_SYMBOL);
4479 x_default_parameter (f, parms, Qtitle, Qnil,
4480 "title", "Title", RES_TYPE_STRING);
4481 x_default_parameter (f, parms, Qfullscreen, Qnil,
4482 "fullscreen", "Fullscreen", RES_TYPE_SYMBOL);
4484 f->output_data.w32->dwStyle = WS_OVERLAPPEDWINDOW;
4485 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
4487 f->output_data.w32->text_cursor = w32_load_cursor (IDC_IBEAM);
4488 f->output_data.w32->nontext_cursor = w32_load_cursor (IDC_ARROW);
4489 f->output_data.w32->modeline_cursor = w32_load_cursor (IDC_ARROW);
4490 f->output_data.w32->hand_cursor = w32_load_cursor (IDC_HAND);
4491 f->output_data.w32->hourglass_cursor = w32_load_cursor (IDC_WAIT);
4492 f->output_data.w32->horizontal_drag_cursor = w32_load_cursor (IDC_SIZEWE);
4494 window_prompting = x_figure_window_size (f, parms, 1);
4496 tem = w32_get_arg (parms, Qunsplittable, 0, 0, RES_TYPE_BOOLEAN);
4497 f->no_split = minibuffer_only || EQ (tem, Qt);
4499 w32_window (f, window_prompting, minibuffer_only);
4500 x_icon (f, parms);
4502 x_make_gc (f);
4504 /* Now consider the frame official. */
4505 FRAME_W32_DISPLAY_INFO (f)->reference_count++;
4506 Vframe_list = Fcons (frame, Vframe_list);
4508 /* We need to do this after creating the window, so that the
4509 icon-creation functions can say whose icon they're describing. */
4510 x_default_parameter (f, parms, Qicon_type, Qnil,
4511 "bitmapIcon", "BitmapIcon", RES_TYPE_SYMBOL);
4513 x_default_parameter (f, parms, Qauto_raise, Qnil,
4514 "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN);
4515 x_default_parameter (f, parms, Qauto_lower, Qnil,
4516 "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN);
4517 x_default_parameter (f, parms, Qcursor_type, Qbox,
4518 "cursorType", "CursorType", RES_TYPE_SYMBOL);
4519 x_default_parameter (f, parms, Qscroll_bar_width, Qnil,
4520 "scrollBarWidth", "ScrollBarWidth", RES_TYPE_NUMBER);
4522 /* Dimensions, especially FRAME_LINES (f), must be done via change_frame_size.
4523 Change will not be effected unless different from the current
4524 FRAME_LINES (f). */
4525 width = FRAME_COLS (f);
4526 height = FRAME_LINES (f);
4528 FRAME_LINES (f) = 0;
4529 SET_FRAME_COLS (f, 0);
4530 change_frame_size (f, height, width, 1, 0, 0);
4532 /* Tell the server what size and position, etc, we want, and how
4533 badly we want them. This should be done after we have the menu
4534 bar so that its size can be taken into account. */
4535 BLOCK_INPUT;
4536 x_wm_set_size_hint (f, window_prompting, 0);
4537 UNBLOCK_INPUT;
4539 /* Avoid a bug that causes the new frame to never become visible if
4540 an echo area message is displayed during the following call1. */
4541 specbind(Qredisplay_dont_pause, Qt);
4543 /* Set up faces after all frame parameters are known. This call
4544 also merges in face attributes specified for new frames. If we
4545 don't do this, the `menu' face for instance won't have the right
4546 colors, and the menu bar won't appear in the specified colors for
4547 new frames. */
4548 call1 (Qface_set_after_frame_default, frame);
4550 /* Make the window appear on the frame and enable display, unless
4551 the caller says not to. However, with explicit parent, Emacs
4552 cannot control visibility, so don't try. */
4553 if (! f->output_data.w32->explicit_parent)
4555 Lisp_Object visibility;
4557 visibility = w32_get_arg (parms, Qvisibility, 0, 0, RES_TYPE_SYMBOL);
4558 if (EQ (visibility, Qunbound))
4559 visibility = Qt;
4561 if (EQ (visibility, Qicon))
4562 x_iconify_frame (f);
4563 else if (! NILP (visibility))
4564 x_make_frame_visible (f);
4565 else
4566 /* Must have been Qnil. */
4569 UNGCPRO;
4571 /* Make sure windows on this frame appear in calls to next-window
4572 and similar functions. */
4573 Vwindow_list = Qnil;
4575 return unbind_to (count, frame);
4578 /* FRAME is used only to get a handle on the X display. We don't pass the
4579 display info directly because we're called from frame.c, which doesn't
4580 know about that structure. */
4581 Lisp_Object
4582 x_get_focus_frame (frame)
4583 struct frame *frame;
4585 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (frame);
4586 Lisp_Object xfocus;
4587 if (! dpyinfo->w32_focus_frame)
4588 return Qnil;
4590 XSETFRAME (xfocus, dpyinfo->w32_focus_frame);
4591 return xfocus;
4594 DEFUN ("w32-focus-frame", Fw32_focus_frame, Sw32_focus_frame, 1, 1, 0,
4595 doc: /* Give FRAME input focus, raising to foreground if necessary. */)
4596 (frame)
4597 Lisp_Object frame;
4599 x_focus_on_frame (check_x_frame (frame));
4600 return Qnil;
4604 /* Return the charset portion of a font name. */
4605 char * xlfd_charset_of_font (char * fontname)
4607 char *charset, *encoding;
4609 encoding = strrchr(fontname, '-');
4610 if (!encoding || encoding == fontname)
4611 return NULL;
4613 for (charset = encoding - 1; charset >= fontname; charset--)
4614 if (*charset == '-')
4615 break;
4617 if (charset == fontname || strcmp(charset, "-*-*") == 0)
4618 return NULL;
4620 return charset + 1;
4623 struct font_info *w32_load_bdf_font (struct frame *f, char *fontname,
4624 int size, char* filename);
4625 static Lisp_Object w32_list_bdf_fonts (Lisp_Object pattern, int max_names);
4626 static BOOL w32_to_x_font (LOGFONT * lplf, char * lpxstr, int len,
4627 char * charset);
4628 static BOOL x_to_w32_font (char *lpxstr, LOGFONT *lplogfont);
4630 static struct font_info *
4631 w32_load_system_font (f,fontname,size)
4632 struct frame *f;
4633 char * fontname;
4634 int size;
4636 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
4637 Lisp_Object font_names;
4639 /* Get a list of all the fonts that match this name. Once we
4640 have a list of matching fonts, we compare them against the fonts
4641 we already have loaded by comparing names. */
4642 font_names = w32_list_fonts (f, build_string (fontname), size, 100);
4644 if (!NILP (font_names))
4646 Lisp_Object tail;
4647 int i;
4649 /* First check if any are already loaded, as that is cheaper
4650 than loading another one. */
4651 for (i = 0; i < dpyinfo->n_fonts; i++)
4652 for (tail = font_names; CONSP (tail); tail = XCDR (tail))
4653 if (dpyinfo->font_table[i].name
4654 && (!strcmp (dpyinfo->font_table[i].name,
4655 SDATA (XCAR (tail)))
4656 || !strcmp (dpyinfo->font_table[i].full_name,
4657 SDATA (XCAR (tail)))))
4658 return (dpyinfo->font_table + i);
4660 fontname = (char *) SDATA (XCAR (font_names));
4662 else if (w32_strict_fontnames)
4664 /* If EnumFontFamiliesEx was available, we got a full list of
4665 fonts back so stop now to avoid the possibility of loading a
4666 random font. If we had to fall back to EnumFontFamilies, the
4667 list is incomplete, so continue whether the font we want was
4668 listed or not. */
4669 HMODULE gdi32 = GetModuleHandle ("gdi32.dll");
4670 FARPROC enum_font_families_ex
4671 = GetProcAddress (gdi32, "EnumFontFamiliesExA");
4672 if (enum_font_families_ex)
4673 return NULL;
4676 /* Load the font and add it to the table. */
4678 char *full_name, *encoding, *charset;
4679 XFontStruct *font;
4680 struct font_info *fontp;
4681 LOGFONT lf;
4682 BOOL ok;
4683 int codepage;
4684 int i;
4686 if (!fontname || !x_to_w32_font (fontname, &lf))
4687 return (NULL);
4689 if (!*lf.lfFaceName)
4690 /* If no name was specified for the font, we get a random font
4691 from CreateFontIndirect - this is not particularly
4692 desirable, especially since CreateFontIndirect does not
4693 fill out the missing name in lf, so we never know what we
4694 ended up with. */
4695 return NULL;
4697 lf.lfQuality = DEFAULT_QUALITY;
4699 font = (XFontStruct *) xmalloc (sizeof (XFontStruct));
4700 bzero (font, sizeof (*font));
4702 /* Set bdf to NULL to indicate that this is a Windows font. */
4703 font->bdf = NULL;
4705 BLOCK_INPUT;
4707 font->hfont = CreateFontIndirect (&lf);
4709 if (font->hfont == NULL)
4711 ok = FALSE;
4713 else
4715 HDC hdc;
4716 HANDLE oldobj;
4718 codepage = w32_codepage_for_font (fontname);
4720 hdc = GetDC (dpyinfo->root_window);
4721 oldobj = SelectObject (hdc, font->hfont);
4723 ok = GetTextMetrics (hdc, &font->tm);
4724 if (codepage == CP_UNICODE)
4725 font->double_byte_p = 1;
4726 else
4728 /* Unfortunately, some fonts (eg. MingLiU, a big5 ttf font)
4729 don't report themselves as double byte fonts, when
4730 patently they are. So instead of trusting
4731 GetFontLanguageInfo, we check the properties of the
4732 codepage directly, since that is ultimately what we are
4733 working from anyway. */
4734 /* font->double_byte_p = GetFontLanguageInfo(hdc) & GCP_DBCS; */
4735 CPINFO cpi = {0};
4736 GetCPInfo (codepage, &cpi);
4737 font->double_byte_p = cpi.MaxCharSize > 1;
4740 SelectObject (hdc, oldobj);
4741 ReleaseDC (dpyinfo->root_window, hdc);
4742 /* Fill out details in lf according to the font that was
4743 actually loaded. */
4744 lf.lfHeight = font->tm.tmInternalLeading - font->tm.tmHeight;
4745 lf.lfWidth = font->tm.tmAveCharWidth;
4746 lf.lfWeight = font->tm.tmWeight;
4747 lf.lfItalic = font->tm.tmItalic;
4748 lf.lfCharSet = font->tm.tmCharSet;
4749 lf.lfPitchAndFamily = ((font->tm.tmPitchAndFamily & TMPF_FIXED_PITCH)
4750 ? VARIABLE_PITCH : FIXED_PITCH);
4751 lf.lfOutPrecision = ((font->tm.tmPitchAndFamily & TMPF_VECTOR)
4752 ? OUT_STROKE_PRECIS : OUT_STRING_PRECIS);
4754 w32_cache_char_metrics (font);
4757 UNBLOCK_INPUT;
4759 if (!ok)
4761 w32_unload_font (dpyinfo, font);
4762 return (NULL);
4765 /* Find a free slot in the font table. */
4766 for (i = 0; i < dpyinfo->n_fonts; ++i)
4767 if (dpyinfo->font_table[i].name == NULL)
4768 break;
4770 /* If no free slot found, maybe enlarge the font table. */
4771 if (i == dpyinfo->n_fonts
4772 && dpyinfo->n_fonts == dpyinfo->font_table_size)
4774 int sz;
4775 dpyinfo->font_table_size = max (16, 2 * dpyinfo->font_table_size);
4776 sz = dpyinfo->font_table_size * sizeof *dpyinfo->font_table;
4777 dpyinfo->font_table
4778 = (struct font_info *) xrealloc (dpyinfo->font_table, sz);
4781 fontp = dpyinfo->font_table + i;
4782 if (i == dpyinfo->n_fonts)
4783 ++dpyinfo->n_fonts;
4785 /* Now fill in the slots of *FONTP. */
4786 BLOCK_INPUT;
4787 bzero (fontp, sizeof (*fontp));
4788 fontp->font = font;
4789 fontp->font_idx = i;
4790 fontp->name = (char *) xmalloc (strlen (fontname) + 1);
4791 bcopy (fontname, fontp->name, strlen (fontname) + 1);
4793 charset = xlfd_charset_of_font (fontname);
4795 /* Cache the W32 codepage for a font. This makes w32_encode_char
4796 (called for every glyph during redisplay) much faster. */
4797 fontp->codepage = codepage;
4799 /* Work out the font's full name. */
4800 full_name = (char *)xmalloc (100);
4801 if (full_name && w32_to_x_font (&lf, full_name, 100, charset))
4802 fontp->full_name = full_name;
4803 else
4805 /* If all else fails - just use the name we used to load it. */
4806 xfree (full_name);
4807 fontp->full_name = fontp->name;
4810 fontp->size = FONT_WIDTH (font);
4811 fontp->height = FONT_HEIGHT (font);
4813 /* The slot `encoding' specifies how to map a character
4814 code-points (0x20..0x7F or 0x2020..0x7F7F) of each charset to
4815 the font code-points (0:0x20..0x7F, 1:0xA0..0xFF), or
4816 (0:0x20..0x7F, 1:0xA0..0xFF,
4817 (0:0x2020..0x7F7F, 1:0xA0A0..0xFFFF, 3:0x20A0..0x7FFF,
4818 2:0xA020..0xFF7F). For the moment, we don't know which charset
4819 uses this font. So, we set information in fontp->encoding[1]
4820 which is never used by any charset. If mapping can't be
4821 decided, set FONT_ENCODING_NOT_DECIDED. */
4823 /* SJIS fonts need to be set to type 4, all others seem to work as
4824 type FONT_ENCODING_NOT_DECIDED. */
4825 encoding = strrchr (fontp->name, '-');
4826 if (encoding && strnicmp (encoding+1, "sjis", 4) == 0)
4827 fontp->encoding[1] = 4;
4828 else
4829 fontp->encoding[1] = FONT_ENCODING_NOT_DECIDED;
4831 /* The following three values are set to 0 under W32, which is
4832 what they get set to if XGetFontProperty fails under X. */
4833 fontp->baseline_offset = 0;
4834 fontp->relative_compose = 0;
4835 fontp->default_ascent = 0;
4837 /* Set global flag fonts_changed_p to non-zero if the font loaded
4838 has a character with a smaller width than any other character
4839 before, or if the font loaded has a smaller height than any
4840 other font loaded before. If this happens, it will make a
4841 glyph matrix reallocation necessary. */
4842 fonts_changed_p |= x_compute_min_glyph_bounds (f);
4843 UNBLOCK_INPUT;
4844 return fontp;
4848 /* Load font named FONTNAME of size SIZE for frame F, and return a
4849 pointer to the structure font_info while allocating it dynamically.
4850 If loading fails, return NULL. */
4851 struct font_info *
4852 w32_load_font (f,fontname,size)
4853 struct frame *f;
4854 char * fontname;
4855 int size;
4857 Lisp_Object bdf_fonts;
4858 struct font_info *retval = NULL;
4860 bdf_fonts = w32_list_bdf_fonts (build_string (fontname), 1);
4862 while (!retval && CONSP (bdf_fonts))
4864 char *bdf_name, *bdf_file;
4865 Lisp_Object bdf_pair;
4867 bdf_name = SDATA (XCAR (bdf_fonts));
4868 bdf_pair = Fassoc (XCAR (bdf_fonts), Vw32_bdf_filename_alist);
4869 bdf_file = SDATA (XCDR (bdf_pair));
4871 retval = w32_load_bdf_font (f, bdf_name, size, bdf_file);
4873 bdf_fonts = XCDR (bdf_fonts);
4876 if (retval)
4877 return retval;
4879 return w32_load_system_font(f, fontname, size);
4883 void
4884 w32_unload_font (dpyinfo, font)
4885 struct w32_display_info *dpyinfo;
4886 XFontStruct * font;
4888 if (font)
4890 if (font->per_char) xfree (font->per_char);
4891 if (font->bdf) w32_free_bdf_font (font->bdf);
4893 if (font->hfont) DeleteObject(font->hfont);
4894 xfree (font);
4898 /* The font conversion stuff between x and w32 */
4900 /* X font string is as follows (from faces.el)
4901 * (let ((- "[-?]")
4902 * (foundry "[^-]+")
4903 * (family "[^-]+")
4904 * (weight "\\(bold\\|demibold\\|medium\\)") ; 1
4905 * (weight\? "\\([^-]*\\)") ; 1
4906 * (slant "\\([ior]\\)") ; 2
4907 * (slant\? "\\([^-]?\\)") ; 2
4908 * (swidth "\\([^-]*\\)") ; 3
4909 * (adstyle "[^-]*") ; 4
4910 * (pixelsize "[0-9]+")
4911 * (pointsize "[0-9][0-9]+")
4912 * (resx "[0-9][0-9]+")
4913 * (resy "[0-9][0-9]+")
4914 * (spacing "[cmp?*]")
4915 * (avgwidth "[0-9]+")
4916 * (registry "[^-]+")
4917 * (encoding "[^-]+")
4921 static LONG
4922 x_to_w32_weight (lpw)
4923 char * lpw;
4925 if (!lpw) return (FW_DONTCARE);
4927 if (stricmp (lpw,"heavy") == 0) return FW_HEAVY;
4928 else if (stricmp (lpw,"extrabold") == 0) return FW_EXTRABOLD;
4929 else if (stricmp (lpw,"bold") == 0) return FW_BOLD;
4930 else if (stricmp (lpw,"demibold") == 0) return FW_SEMIBOLD;
4931 else if (stricmp (lpw,"semibold") == 0) return FW_SEMIBOLD;
4932 else if (stricmp (lpw,"medium") == 0) return FW_MEDIUM;
4933 else if (stricmp (lpw,"normal") == 0) return FW_NORMAL;
4934 else if (stricmp (lpw,"light") == 0) return FW_LIGHT;
4935 else if (stricmp (lpw,"extralight") == 0) return FW_EXTRALIGHT;
4936 else if (stricmp (lpw,"thin") == 0) return FW_THIN;
4937 else
4938 return FW_DONTCARE;
4942 static char *
4943 w32_to_x_weight (fnweight)
4944 int fnweight;
4946 if (fnweight >= FW_HEAVY) return "heavy";
4947 if (fnweight >= FW_EXTRABOLD) return "extrabold";
4948 if (fnweight >= FW_BOLD) return "bold";
4949 if (fnweight >= FW_SEMIBOLD) return "demibold";
4950 if (fnweight >= FW_MEDIUM) return "medium";
4951 if (fnweight >= FW_NORMAL) return "normal";
4952 if (fnweight >= FW_LIGHT) return "light";
4953 if (fnweight >= FW_EXTRALIGHT) return "extralight";
4954 if (fnweight >= FW_THIN) return "thin";
4955 else
4956 return "*";
4959 static LONG
4960 x_to_w32_charset (lpcs)
4961 char * lpcs;
4963 Lisp_Object this_entry, w32_charset;
4964 char *charset;
4965 int len = strlen (lpcs);
4967 /* Support "*-#nnn" format for unknown charsets. */
4968 if (strncmp (lpcs, "*-#", 3) == 0)
4969 return atoi (lpcs + 3);
4971 /* Handle wildcards by ignoring them; eg. treat "big5*-*" as "big5". */
4972 charset = alloca (len + 1);
4973 strcpy (charset, lpcs);
4974 lpcs = strchr (charset, '*');
4975 if (lpcs)
4976 *lpcs = 0;
4978 /* Look through w32-charset-info-alist for the character set.
4979 Format of each entry is
4980 (CHARSET_NAME . (WINDOWS_CHARSET . CODEPAGE)).
4982 this_entry = Fassoc (build_string(charset), Vw32_charset_info_alist);
4984 if (NILP(this_entry))
4986 /* At startup, we want iso8859-1 fonts to come up properly. */
4987 if (stricmp(charset, "iso8859-1") == 0)
4988 return ANSI_CHARSET;
4989 else
4990 return DEFAULT_CHARSET;
4993 w32_charset = Fcar (Fcdr (this_entry));
4995 /* Translate Lisp symbol to number. */
4996 if (w32_charset == Qw32_charset_ansi)
4997 return ANSI_CHARSET;
4998 if (w32_charset == Qw32_charset_symbol)
4999 return SYMBOL_CHARSET;
5000 if (w32_charset == Qw32_charset_shiftjis)
5001 return SHIFTJIS_CHARSET;
5002 if (w32_charset == Qw32_charset_hangeul)
5003 return HANGEUL_CHARSET;
5004 if (w32_charset == Qw32_charset_chinesebig5)
5005 return CHINESEBIG5_CHARSET;
5006 if (w32_charset == Qw32_charset_gb2312)
5007 return GB2312_CHARSET;
5008 if (w32_charset == Qw32_charset_oem)
5009 return OEM_CHARSET;
5010 #ifdef JOHAB_CHARSET
5011 if (w32_charset == Qw32_charset_johab)
5012 return JOHAB_CHARSET;
5013 if (w32_charset == Qw32_charset_easteurope)
5014 return EASTEUROPE_CHARSET;
5015 if (w32_charset == Qw32_charset_turkish)
5016 return TURKISH_CHARSET;
5017 if (w32_charset == Qw32_charset_baltic)
5018 return BALTIC_CHARSET;
5019 if (w32_charset == Qw32_charset_russian)
5020 return RUSSIAN_CHARSET;
5021 if (w32_charset == Qw32_charset_arabic)
5022 return ARABIC_CHARSET;
5023 if (w32_charset == Qw32_charset_greek)
5024 return GREEK_CHARSET;
5025 if (w32_charset == Qw32_charset_hebrew)
5026 return HEBREW_CHARSET;
5027 if (w32_charset == Qw32_charset_vietnamese)
5028 return VIETNAMESE_CHARSET;
5029 if (w32_charset == Qw32_charset_thai)
5030 return THAI_CHARSET;
5031 if (w32_charset == Qw32_charset_mac)
5032 return MAC_CHARSET;
5033 #endif /* JOHAB_CHARSET */
5034 #ifdef UNICODE_CHARSET
5035 if (w32_charset == Qw32_charset_unicode)
5036 return UNICODE_CHARSET;
5037 #endif
5039 return DEFAULT_CHARSET;
5043 static char *
5044 w32_to_x_charset (fncharset)
5045 int fncharset;
5047 static char buf[32];
5048 Lisp_Object charset_type;
5050 switch (fncharset)
5052 case ANSI_CHARSET:
5053 /* Handle startup case of w32-charset-info-alist not
5054 being set up yet. */
5055 if (NILP(Vw32_charset_info_alist))
5056 return "iso8859-1";
5057 charset_type = Qw32_charset_ansi;
5058 break;
5059 case DEFAULT_CHARSET:
5060 charset_type = Qw32_charset_default;
5061 break;
5062 case SYMBOL_CHARSET:
5063 charset_type = Qw32_charset_symbol;
5064 break;
5065 case SHIFTJIS_CHARSET:
5066 charset_type = Qw32_charset_shiftjis;
5067 break;
5068 case HANGEUL_CHARSET:
5069 charset_type = Qw32_charset_hangeul;
5070 break;
5071 case GB2312_CHARSET:
5072 charset_type = Qw32_charset_gb2312;
5073 break;
5074 case CHINESEBIG5_CHARSET:
5075 charset_type = Qw32_charset_chinesebig5;
5076 break;
5077 case OEM_CHARSET:
5078 charset_type = Qw32_charset_oem;
5079 break;
5081 /* More recent versions of Windows (95 and NT4.0) define more
5082 character sets. */
5083 #ifdef EASTEUROPE_CHARSET
5084 case EASTEUROPE_CHARSET:
5085 charset_type = Qw32_charset_easteurope;
5086 break;
5087 case TURKISH_CHARSET:
5088 charset_type = Qw32_charset_turkish;
5089 break;
5090 case BALTIC_CHARSET:
5091 charset_type = Qw32_charset_baltic;
5092 break;
5093 case RUSSIAN_CHARSET:
5094 charset_type = Qw32_charset_russian;
5095 break;
5096 case ARABIC_CHARSET:
5097 charset_type = Qw32_charset_arabic;
5098 break;
5099 case GREEK_CHARSET:
5100 charset_type = Qw32_charset_greek;
5101 break;
5102 case HEBREW_CHARSET:
5103 charset_type = Qw32_charset_hebrew;
5104 break;
5105 case VIETNAMESE_CHARSET:
5106 charset_type = Qw32_charset_vietnamese;
5107 break;
5108 case THAI_CHARSET:
5109 charset_type = Qw32_charset_thai;
5110 break;
5111 case MAC_CHARSET:
5112 charset_type = Qw32_charset_mac;
5113 break;
5114 case JOHAB_CHARSET:
5115 charset_type = Qw32_charset_johab;
5116 break;
5117 #endif
5119 #ifdef UNICODE_CHARSET
5120 case UNICODE_CHARSET:
5121 charset_type = Qw32_charset_unicode;
5122 break;
5123 #endif
5124 default:
5125 /* Encode numerical value of unknown charset. */
5126 sprintf (buf, "*-#%u", fncharset);
5127 return buf;
5131 Lisp_Object rest;
5132 char * best_match = NULL;
5134 /* Look through w32-charset-info-alist for the character set.
5135 Prefer ISO codepages, and prefer lower numbers in the ISO
5136 range. Only return charsets for codepages which are installed.
5138 Format of each entry is
5139 (CHARSET_NAME . (WINDOWS_CHARSET . CODEPAGE)).
5141 for (rest = Vw32_charset_info_alist; CONSP (rest); rest = XCDR (rest))
5143 char * x_charset;
5144 Lisp_Object w32_charset;
5145 Lisp_Object codepage;
5147 Lisp_Object this_entry = XCAR (rest);
5149 /* Skip invalid entries in alist. */
5150 if (!CONSP (this_entry) || !STRINGP (XCAR (this_entry))
5151 || !CONSP (XCDR (this_entry))
5152 || !SYMBOLP (XCAR (XCDR (this_entry))))
5153 continue;
5155 x_charset = SDATA (XCAR (this_entry));
5156 w32_charset = XCAR (XCDR (this_entry));
5157 codepage = XCDR (XCDR (this_entry));
5159 /* Look for Same charset and a valid codepage (or non-int
5160 which means ignore). */
5161 if (w32_charset == charset_type
5162 && (!INTEGERP (codepage) || codepage == CP_DEFAULT
5163 || IsValidCodePage (XINT (codepage))))
5165 /* If we don't have a match already, then this is the
5166 best. */
5167 if (!best_match)
5168 best_match = x_charset;
5169 /* If this is an ISO codepage, and the best so far isn't,
5170 then this is better. */
5171 else if (strnicmp (best_match, "iso", 3) != 0
5172 && strnicmp (x_charset, "iso", 3) == 0)
5173 best_match = x_charset;
5174 /* If both are ISO8859 codepages, choose the one with the
5175 lowest number in the encoding field. */
5176 else if (strnicmp (best_match, "iso8859-", 8) == 0
5177 && strnicmp (x_charset, "iso8859-", 8) == 0)
5179 int best_enc = atoi (best_match + 8);
5180 int this_enc = atoi (x_charset + 8);
5181 if (this_enc > 0 && this_enc < best_enc)
5182 best_match = x_charset;
5187 /* If no match, encode the numeric value. */
5188 if (!best_match)
5190 sprintf (buf, "*-#%u", fncharset);
5191 return buf;
5194 strncpy(buf, best_match, 31);
5195 buf[31] = '\0';
5196 return buf;
5201 /* Return all the X charsets that map to a font. */
5202 static Lisp_Object
5203 w32_to_all_x_charsets (fncharset)
5204 int fncharset;
5206 static char buf[32];
5207 Lisp_Object charset_type;
5208 Lisp_Object retval = Qnil;
5210 switch (fncharset)
5212 case ANSI_CHARSET:
5213 /* Handle startup case of w32-charset-info-alist not
5214 being set up yet. */
5215 if (NILP(Vw32_charset_info_alist))
5216 return Fcons (build_string ("iso8859-1"), Qnil);
5218 charset_type = Qw32_charset_ansi;
5219 break;
5220 case DEFAULT_CHARSET:
5221 charset_type = Qw32_charset_default;
5222 break;
5223 case SYMBOL_CHARSET:
5224 charset_type = Qw32_charset_symbol;
5225 break;
5226 case SHIFTJIS_CHARSET:
5227 charset_type = Qw32_charset_shiftjis;
5228 break;
5229 case HANGEUL_CHARSET:
5230 charset_type = Qw32_charset_hangeul;
5231 break;
5232 case GB2312_CHARSET:
5233 charset_type = Qw32_charset_gb2312;
5234 break;
5235 case CHINESEBIG5_CHARSET:
5236 charset_type = Qw32_charset_chinesebig5;
5237 break;
5238 case OEM_CHARSET:
5239 charset_type = Qw32_charset_oem;
5240 break;
5242 /* More recent versions of Windows (95 and NT4.0) define more
5243 character sets. */
5244 #ifdef EASTEUROPE_CHARSET
5245 case EASTEUROPE_CHARSET:
5246 charset_type = Qw32_charset_easteurope;
5247 break;
5248 case TURKISH_CHARSET:
5249 charset_type = Qw32_charset_turkish;
5250 break;
5251 case BALTIC_CHARSET:
5252 charset_type = Qw32_charset_baltic;
5253 break;
5254 case RUSSIAN_CHARSET:
5255 charset_type = Qw32_charset_russian;
5256 break;
5257 case ARABIC_CHARSET:
5258 charset_type = Qw32_charset_arabic;
5259 break;
5260 case GREEK_CHARSET:
5261 charset_type = Qw32_charset_greek;
5262 break;
5263 case HEBREW_CHARSET:
5264 charset_type = Qw32_charset_hebrew;
5265 break;
5266 case VIETNAMESE_CHARSET:
5267 charset_type = Qw32_charset_vietnamese;
5268 break;
5269 case THAI_CHARSET:
5270 charset_type = Qw32_charset_thai;
5271 break;
5272 case MAC_CHARSET:
5273 charset_type = Qw32_charset_mac;
5274 break;
5275 case JOHAB_CHARSET:
5276 charset_type = Qw32_charset_johab;
5277 break;
5278 #endif
5280 #ifdef UNICODE_CHARSET
5281 case UNICODE_CHARSET:
5282 charset_type = Qw32_charset_unicode;
5283 break;
5284 #endif
5285 default:
5286 /* Encode numerical value of unknown charset. */
5287 sprintf (buf, "*-#%u", fncharset);
5288 return Fcons (build_string (buf), Qnil);
5292 Lisp_Object rest;
5293 /* Look through w32-charset-info-alist for the character set.
5294 Only return charsets for codepages which are installed.
5296 Format of each entry in Vw32_charset_info_alist is
5297 (CHARSET_NAME . (WINDOWS_CHARSET . CODEPAGE)).
5299 for (rest = Vw32_charset_info_alist; CONSP (rest); rest = XCDR (rest))
5301 Lisp_Object x_charset;
5302 Lisp_Object w32_charset;
5303 Lisp_Object codepage;
5305 Lisp_Object this_entry = XCAR (rest);
5307 /* Skip invalid entries in alist. */
5308 if (!CONSP (this_entry) || !STRINGP (XCAR (this_entry))
5309 || !CONSP (XCDR (this_entry))
5310 || !SYMBOLP (XCAR (XCDR (this_entry))))
5311 continue;
5313 x_charset = XCAR (this_entry);
5314 w32_charset = XCAR (XCDR (this_entry));
5315 codepage = XCDR (XCDR (this_entry));
5317 /* Look for Same charset and a valid codepage (or non-int
5318 which means ignore). */
5319 if (w32_charset == charset_type
5320 && (!INTEGERP (codepage) || codepage == CP_DEFAULT
5321 || IsValidCodePage (XINT (codepage))))
5323 retval = Fcons (x_charset, retval);
5327 /* If no match, encode the numeric value. */
5328 if (NILP (retval))
5330 sprintf (buf, "*-#%u", fncharset);
5331 return Fcons (build_string (buf), Qnil);
5334 return retval;
5338 /* Get the Windows codepage corresponding to the specified font. The
5339 charset info in the font name is used to look up
5340 w32-charset-to-codepage-alist. */
5342 w32_codepage_for_font (char *fontname)
5344 Lisp_Object codepage, entry;
5345 char *charset_str, *charset, *end;
5347 if (NILP (Vw32_charset_info_alist))
5348 return CP_DEFAULT;
5350 /* Extract charset part of font string. */
5351 charset = xlfd_charset_of_font (fontname);
5353 if (!charset)
5354 return CP_UNKNOWN;
5356 charset_str = (char *) alloca (strlen (charset) + 1);
5357 strcpy (charset_str, charset);
5359 #if 0
5360 /* Remove leading "*-". */
5361 if (strncmp ("*-", charset_str, 2) == 0)
5362 charset = charset_str + 2;
5363 else
5364 #endif
5365 charset = charset_str;
5367 /* Stop match at wildcard (including preceding '-'). */
5368 if (end = strchr (charset, '*'))
5370 if (end > charset && *(end-1) == '-')
5371 end--;
5372 *end = '\0';
5375 entry = Fassoc (build_string(charset), Vw32_charset_info_alist);
5376 if (NILP (entry))
5377 return CP_UNKNOWN;
5379 codepage = Fcdr (Fcdr (entry));
5381 if (NILP (codepage))
5382 return CP_8BIT;
5383 else if (XFASTINT (codepage) == XFASTINT (Qt))
5384 return CP_UNICODE;
5385 else if (INTEGERP (codepage))
5386 return XINT (codepage);
5387 else
5388 return CP_UNKNOWN;
5392 static BOOL
5393 w32_to_x_font (lplogfont, lpxstr, len, specific_charset)
5394 LOGFONT * lplogfont;
5395 char * lpxstr;
5396 int len;
5397 char * specific_charset;
5399 char* fonttype;
5400 char *fontname;
5401 char height_pixels[8];
5402 char height_dpi[8];
5403 char width_pixels[8];
5404 char *fontname_dash;
5405 int display_resy = (int) one_w32_display_info.resy;
5406 int display_resx = (int) one_w32_display_info.resx;
5407 int bufsz;
5408 struct coding_system coding;
5410 if (!lpxstr) abort ();
5412 if (!lplogfont)
5413 return FALSE;
5415 if (lplogfont->lfOutPrecision == OUT_STRING_PRECIS)
5416 fonttype = "raster";
5417 else if (lplogfont->lfOutPrecision == OUT_STROKE_PRECIS)
5418 fonttype = "outline";
5419 else
5420 fonttype = "unknown";
5422 setup_coding_system (Fcheck_coding_system (Vlocale_coding_system),
5423 &coding);
5424 coding.src_multibyte = 0;
5425 coding.dst_multibyte = 1;
5426 coding.mode |= CODING_MODE_LAST_BLOCK;
5427 /* We explicitely disable composition handling because selection
5428 data should not contain any composition sequence. */
5429 coding.composing = COMPOSITION_DISABLED;
5430 bufsz = decoding_buffer_size (&coding, LF_FACESIZE);
5432 fontname = alloca(sizeof(*fontname) * bufsz);
5433 decode_coding (&coding, lplogfont->lfFaceName, fontname,
5434 strlen(lplogfont->lfFaceName), bufsz - 1);
5435 *(fontname + coding.produced) = '\0';
5437 /* Replace dashes with underscores so the dashes are not
5438 misinterpreted. */
5439 fontname_dash = fontname;
5440 while (fontname_dash = strchr (fontname_dash, '-'))
5441 *fontname_dash = '_';
5443 if (lplogfont->lfHeight)
5445 sprintf (height_pixels, "%u", abs (lplogfont->lfHeight));
5446 sprintf (height_dpi, "%u",
5447 abs (lplogfont->lfHeight) * 720 / display_resy);
5449 else
5451 strcpy (height_pixels, "*");
5452 strcpy (height_dpi, "*");
5454 if (lplogfont->lfWidth)
5455 sprintf (width_pixels, "%u", lplogfont->lfWidth * 10);
5456 else
5457 strcpy (width_pixels, "*");
5459 _snprintf (lpxstr, len - 1,
5460 "-%s-%s-%s-%c-normal-normal-%s-%s-%d-%d-%c-%s-%s",
5461 fonttype, /* foundry */
5462 fontname, /* family */
5463 w32_to_x_weight (lplogfont->lfWeight), /* weight */
5464 lplogfont->lfItalic?'i':'r', /* slant */
5465 /* setwidth name */
5466 /* add style name */
5467 height_pixels, /* pixel size */
5468 height_dpi, /* point size */
5469 display_resx, /* resx */
5470 display_resy, /* resy */
5471 ((lplogfont->lfPitchAndFamily & 0x3) == VARIABLE_PITCH)
5472 ? 'p' : 'c', /* spacing */
5473 width_pixels, /* avg width */
5474 specific_charset ? specific_charset
5475 : w32_to_x_charset (lplogfont->lfCharSet)
5476 /* charset registry and encoding */
5479 lpxstr[len - 1] = 0; /* just to be sure */
5480 return (TRUE);
5483 static BOOL
5484 x_to_w32_font (lpxstr, lplogfont)
5485 char * lpxstr;
5486 LOGFONT * lplogfont;
5488 struct coding_system coding;
5490 if (!lplogfont) return (FALSE);
5492 memset (lplogfont, 0, sizeof (*lplogfont));
5494 /* Set default value for each field. */
5495 #if 1
5496 lplogfont->lfOutPrecision = OUT_DEFAULT_PRECIS;
5497 lplogfont->lfClipPrecision = CLIP_DEFAULT_PRECIS;
5498 lplogfont->lfQuality = DEFAULT_QUALITY;
5499 #else
5500 /* go for maximum quality */
5501 lplogfont->lfOutPrecision = OUT_STROKE_PRECIS;
5502 lplogfont->lfClipPrecision = CLIP_STROKE_PRECIS;
5503 lplogfont->lfQuality = PROOF_QUALITY;
5504 #endif
5506 lplogfont->lfCharSet = DEFAULT_CHARSET;
5507 lplogfont->lfWeight = FW_DONTCARE;
5508 lplogfont->lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
5510 if (!lpxstr)
5511 return FALSE;
5513 /* Provide a simple escape mechanism for specifying Windows font names
5514 * directly -- if font spec does not beginning with '-', assume this
5515 * format:
5516 * "<font name>[:height in pixels[:width in pixels[:weight]]]"
5519 if (*lpxstr == '-')
5521 int fields, tem;
5522 char name[50], weight[20], slant, pitch, pixels[10], height[10],
5523 width[10], resy[10], remainder[50];
5524 char * encoding;
5525 int dpi = (int) one_w32_display_info.resy;
5527 fields = sscanf (lpxstr,
5528 "-%*[^-]-%49[^-]-%19[^-]-%c-%*[^-]-%*[^-]-%9[^-]-%9[^-]-%*[^-]-%9[^-]-%c-%9[^-]-%49s",
5529 name, weight, &slant, pixels, height, resy, &pitch, width, remainder);
5530 if (fields == EOF)
5531 return (FALSE);
5533 /* In the general case when wildcards cover more than one field,
5534 we don't know which field is which, so don't fill any in.
5535 However, we need to cope with this particular form, which is
5536 generated by font_list_1 (invoked by try_font_list):
5537 "-raster-6x10-*-gb2312*-*"
5538 and make sure to correctly parse the charset field. */
5539 if (fields == 3)
5541 fields = sscanf (lpxstr,
5542 "-%*[^-]-%49[^-]-*-%49s",
5543 name, remainder);
5545 else if (fields < 9)
5547 fields = 0;
5548 remainder[0] = 0;
5551 if (fields > 0 && name[0] != '*')
5553 int bufsize;
5554 unsigned char *buf;
5556 setup_coding_system
5557 (Fcheck_coding_system (Vlocale_coding_system), &coding);
5558 coding.src_multibyte = 1;
5559 coding.dst_multibyte = 1;
5560 bufsize = encoding_buffer_size (&coding, strlen (name));
5561 buf = (unsigned char *) alloca (bufsize);
5562 coding.mode |= CODING_MODE_LAST_BLOCK;
5563 encode_coding (&coding, name, buf, strlen (name), bufsize);
5564 if (coding.produced >= LF_FACESIZE)
5565 coding.produced = LF_FACESIZE - 1;
5566 buf[coding.produced] = 0;
5567 strcpy (lplogfont->lfFaceName, buf);
5569 else
5571 lplogfont->lfFaceName[0] = '\0';
5574 fields--;
5576 lplogfont->lfWeight = x_to_w32_weight ((fields > 0 ? weight : ""));
5578 fields--;
5580 lplogfont->lfItalic = (fields > 0 && slant == 'i');
5582 fields--;
5584 if (fields > 0 && pixels[0] != '*')
5585 lplogfont->lfHeight = atoi (pixels);
5587 fields--;
5588 fields--;
5589 if (fields > 0 && resy[0] != '*')
5591 tem = atoi (resy);
5592 if (tem > 0) dpi = tem;
5595 if (fields > -1 && lplogfont->lfHeight == 0 && height[0] != '*')
5596 lplogfont->lfHeight = atoi (height) * dpi / 720;
5598 if (fields > 0)
5599 lplogfont->lfPitchAndFamily =
5600 (fields > 0 && pitch == 'p') ? VARIABLE_PITCH : FIXED_PITCH;
5602 fields--;
5604 if (fields > 0 && width[0] != '*')
5605 lplogfont->lfWidth = atoi (width) / 10;
5607 fields--;
5609 /* Strip the trailing '-' if present. (it shouldn't be, as it
5610 fails the test against xlfd-tight-regexp in fontset.el). */
5612 int len = strlen (remainder);
5613 if (len > 0 && remainder[len-1] == '-')
5614 remainder[len-1] = 0;
5616 encoding = remainder;
5617 #if 0
5618 if (strncmp (encoding, "*-", 2) == 0)
5619 encoding += 2;
5620 #endif
5621 lplogfont->lfCharSet = x_to_w32_charset (encoding);
5623 else
5625 int fields;
5626 char name[100], height[10], width[10], weight[20];
5628 fields = sscanf (lpxstr,
5629 "%99[^:]:%9[^:]:%9[^:]:%19s",
5630 name, height, width, weight);
5632 if (fields == EOF) return (FALSE);
5634 if (fields > 0)
5636 strncpy (lplogfont->lfFaceName,name, LF_FACESIZE);
5637 lplogfont->lfFaceName[LF_FACESIZE-1] = 0;
5639 else
5641 lplogfont->lfFaceName[0] = 0;
5644 fields--;
5646 if (fields > 0)
5647 lplogfont->lfHeight = atoi (height);
5649 fields--;
5651 if (fields > 0)
5652 lplogfont->lfWidth = atoi (width);
5654 fields--;
5656 lplogfont->lfWeight = x_to_w32_weight ((fields > 0 ? weight : ""));
5659 /* This makes TrueType fonts work better. */
5660 lplogfont->lfHeight = - abs (lplogfont->lfHeight);
5662 return (TRUE);
5665 /* Strip the pixel height and point height from the given xlfd, and
5666 return the pixel height. If no pixel height is specified, calculate
5667 one from the point height, or if that isn't defined either, return
5668 0 (which usually signifies a scalable font).
5670 static int
5671 xlfd_strip_height (char *fontname)
5673 int pixel_height, field_number;
5674 char *read_from, *write_to;
5676 xassert (fontname);
5678 pixel_height = field_number = 0;
5679 write_to = NULL;
5681 /* Look for height fields. */
5682 for (read_from = fontname; *read_from; read_from++)
5684 if (*read_from == '-')
5686 field_number++;
5687 if (field_number == 7) /* Pixel height. */
5689 read_from++;
5690 write_to = read_from;
5692 /* Find end of field. */
5693 for (;*read_from && *read_from != '-'; read_from++)
5696 /* Split the fontname at end of field. */
5697 if (*read_from)
5699 *read_from = '\0';
5700 read_from++;
5702 pixel_height = atoi (write_to);
5703 /* Blank out field. */
5704 if (read_from > write_to)
5706 *write_to = '-';
5707 write_to++;
5709 /* If the pixel height field is at the end (partial xlfd),
5710 return now. */
5711 else
5712 return pixel_height;
5714 /* If we got a pixel height, the point height can be
5715 ignored. Just blank it out and break now. */
5716 if (pixel_height)
5718 /* Find end of point size field. */
5719 for (; *read_from && *read_from != '-'; read_from++)
5722 if (*read_from)
5723 read_from++;
5725 /* Blank out the point size field. */
5726 if (read_from > write_to)
5728 *write_to = '-';
5729 write_to++;
5731 else
5732 return pixel_height;
5734 break;
5736 /* If the point height is already blank, break now. */
5737 if (*read_from == '-')
5739 read_from++;
5740 break;
5743 else if (field_number == 8)
5745 /* If we didn't get a pixel height, try to get the point
5746 height and convert that. */
5747 int point_size;
5748 char *point_size_start = read_from++;
5750 /* Find end of field. */
5751 for (; *read_from && *read_from != '-'; read_from++)
5754 if (*read_from)
5756 *read_from = '\0';
5757 read_from++;
5760 point_size = atoi (point_size_start);
5762 /* Convert to pixel height. */
5763 pixel_height = point_size
5764 * one_w32_display_info.height_in / 720;
5766 /* Blank out this field and break. */
5767 *write_to = '-';
5768 write_to++;
5769 break;
5774 /* Shift the rest of the font spec into place. */
5775 if (write_to && read_from > write_to)
5777 for (; *read_from; read_from++, write_to++)
5778 *write_to = *read_from;
5779 *write_to = '\0';
5782 return pixel_height;
5785 /* Assume parameter 1 is fully qualified, no wildcards. */
5786 static BOOL
5787 w32_font_match (fontname, pattern)
5788 char * fontname;
5789 char * pattern;
5791 char *regex = alloca (strlen (pattern) * 2 + 3);
5792 char *font_name_copy = alloca (strlen (fontname) + 1);
5793 char *ptr;
5795 /* Copy fontname so we can modify it during comparison. */
5796 strcpy (font_name_copy, fontname);
5798 ptr = regex;
5799 *ptr++ = '^';
5801 /* Turn pattern into a regexp and do a regexp match. */
5802 for (; *pattern; pattern++)
5804 if (*pattern == '?')
5805 *ptr++ = '.';
5806 else if (*pattern == '*')
5808 *ptr++ = '.';
5809 *ptr++ = '*';
5811 else
5812 *ptr++ = *pattern;
5814 *ptr = '$';
5815 *(ptr + 1) = '\0';
5817 /* Strip out font heights and compare them seperately, since
5818 rounding error can cause mismatches. This also allows a
5819 comparison between a font that declares only a pixel height and a
5820 pattern that declares the point height.
5823 int font_height, pattern_height;
5825 font_height = xlfd_strip_height (font_name_copy);
5826 pattern_height = xlfd_strip_height (regex);
5828 /* Compare now, and don't bother doing expensive regexp matching
5829 if the heights differ. */
5830 if (font_height && pattern_height && (font_height != pattern_height))
5831 return FALSE;
5834 return (fast_c_string_match_ignore_case (build_string (regex),
5835 font_name_copy) >= 0);
5838 /* Callback functions, and a structure holding info they need, for
5839 listing system fonts on W32. We need one set of functions to do the
5840 job properly, but these don't work on NT 3.51 and earlier, so we
5841 have a second set which don't handle character sets properly to
5842 fall back on.
5844 In both cases, there are two passes made. The first pass gets one
5845 font from each family, the second pass lists all the fonts from
5846 each family. */
5848 typedef struct enumfont_t
5850 HDC hdc;
5851 int numFonts;
5852 LOGFONT logfont;
5853 XFontStruct *size_ref;
5854 Lisp_Object pattern;
5855 Lisp_Object list;
5856 } enumfont_t;
5859 static void
5860 enum_font_maybe_add_to_list (enumfont_t *, LOGFONT *, char *, Lisp_Object);
5863 static int CALLBACK
5864 enum_font_cb2 (lplf, lptm, FontType, lpef)
5865 ENUMLOGFONT * lplf;
5866 NEWTEXTMETRIC * lptm;
5867 int FontType;
5868 enumfont_t * lpef;
5870 /* Ignore struck out and underlined versions of fonts. */
5871 if (lplf->elfLogFont.lfStrikeOut || lplf->elfLogFont.lfUnderline)
5872 return 1;
5874 /* Only return fonts with names starting with @ if they were
5875 explicitly specified, since Microsoft uses an initial @ to
5876 denote fonts for vertical writing, without providing a more
5877 convenient way of identifying them. */
5878 if (lplf->elfLogFont.lfFaceName[0] == '@'
5879 && lpef->logfont.lfFaceName[0] != '@')
5880 return 1;
5882 /* Check that the character set matches if it was specified */
5883 if (lpef->logfont.lfCharSet != DEFAULT_CHARSET &&
5884 lplf->elfLogFont.lfCharSet != lpef->logfont.lfCharSet)
5885 return 1;
5887 if (FontType == RASTER_FONTTYPE)
5889 /* DBCS raster fonts have problems displaying, so skip them. */
5890 int charset = lplf->elfLogFont.lfCharSet;
5891 if (charset == SHIFTJIS_CHARSET
5892 || charset == HANGEUL_CHARSET
5893 || charset == CHINESEBIG5_CHARSET
5894 || charset == GB2312_CHARSET
5895 #ifdef JOHAB_CHARSET
5896 || charset == JOHAB_CHARSET
5897 #endif
5899 return 1;
5903 char buf[100];
5904 Lisp_Object width = Qnil;
5905 Lisp_Object charset_list = Qnil;
5906 char *charset = NULL;
5908 /* Truetype fonts do not report their true metrics until loaded */
5909 if (FontType != RASTER_FONTTYPE)
5911 if (!NILP (lpef->pattern))
5913 /* Scalable fonts are as big as you want them to be. */
5914 lplf->elfLogFont.lfHeight = lpef->logfont.lfHeight;
5915 lplf->elfLogFont.lfWidth = lpef->logfont.lfWidth;
5916 width = make_number (lpef->logfont.lfWidth);
5918 else
5920 lplf->elfLogFont.lfHeight = 0;
5921 lplf->elfLogFont.lfWidth = 0;
5925 /* Make sure the height used here is the same as everywhere
5926 else (ie character height, not cell height). */
5927 if (lplf->elfLogFont.lfHeight > 0)
5929 /* lptm can be trusted for RASTER fonts, but not scalable ones. */
5930 if (FontType == RASTER_FONTTYPE)
5931 lplf->elfLogFont.lfHeight = lptm->tmInternalLeading - lptm->tmHeight;
5932 else
5933 lplf->elfLogFont.lfHeight = -lplf->elfLogFont.lfHeight;
5936 if (!NILP (lpef->pattern))
5938 charset = xlfd_charset_of_font (SDATA (lpef->pattern));
5940 /* We already checked charsets above, but DEFAULT_CHARSET
5941 slipped through. So only allow exact matches for DEFAULT_CHARSET. */
5942 if (charset
5943 && strncmp (charset, "*-*", 3) != 0
5944 && lpef->logfont.lfCharSet == DEFAULT_CHARSET
5945 && strcmp (charset, w32_to_x_charset (DEFAULT_CHARSET)) != 0)
5946 return 1;
5949 if (charset)
5950 charset_list = Fcons (build_string (charset), Qnil);
5951 else
5952 charset_list = w32_to_all_x_charsets (lplf->elfLogFont.lfCharSet);
5954 /* Loop through the charsets. */
5955 for ( ; CONSP (charset_list); charset_list = Fcdr (charset_list))
5957 Lisp_Object this_charset = Fcar (charset_list);
5958 charset = SDATA (this_charset);
5960 /* List bold and italic variations if w32-enable-synthesized-fonts
5961 is non-nil and this is a plain font. */
5962 if (w32_enable_synthesized_fonts
5963 && lplf->elfLogFont.lfWeight == FW_NORMAL
5964 && lplf->elfLogFont.lfItalic == FALSE)
5966 enum_font_maybe_add_to_list (lpef, &(lplf->elfLogFont),
5967 charset, width);
5968 /* bold. */
5969 lplf->elfLogFont.lfWeight = FW_BOLD;
5970 enum_font_maybe_add_to_list (lpef, &(lplf->elfLogFont),
5971 charset, width);
5972 /* bold italic. */
5973 lplf->elfLogFont.lfItalic = TRUE;
5974 enum_font_maybe_add_to_list (lpef, &(lplf->elfLogFont),
5975 charset, width);
5976 /* italic. */
5977 lplf->elfLogFont.lfWeight = FW_NORMAL;
5978 enum_font_maybe_add_to_list (lpef, &(lplf->elfLogFont),
5979 charset, width);
5981 else
5982 enum_font_maybe_add_to_list (lpef, &(lplf->elfLogFont),
5983 charset, width);
5987 return 1;
5990 static void
5991 enum_font_maybe_add_to_list (lpef, logfont, match_charset, width)
5992 enumfont_t * lpef;
5993 LOGFONT * logfont;
5994 char * match_charset;
5995 Lisp_Object width;
5997 char buf[100];
5999 if (!w32_to_x_font (logfont, buf, 100, match_charset))
6000 return;
6002 if (NILP (lpef->pattern)
6003 || w32_font_match (buf, SDATA (lpef->pattern)))
6005 /* Check if we already listed this font. This may happen if
6006 w32_enable_synthesized_fonts is non-nil, and there are real
6007 bold and italic versions of the font. */
6008 Lisp_Object font_name = build_string (buf);
6009 if (NILP (Fmember (font_name, lpef->list)))
6011 Lisp_Object entry = Fcons (font_name, width);
6012 lpef->list = Fcons (entry, lpef->list);
6013 lpef->numFonts++;
6019 static int CALLBACK
6020 enum_font_cb1 (lplf, lptm, FontType, lpef)
6021 ENUMLOGFONT * lplf;
6022 NEWTEXTMETRIC * lptm;
6023 int FontType;
6024 enumfont_t * lpef;
6026 return EnumFontFamilies (lpef->hdc,
6027 lplf->elfLogFont.lfFaceName,
6028 (FONTENUMPROC) enum_font_cb2,
6029 (LPARAM) lpef);
6033 static int CALLBACK
6034 enum_fontex_cb2 (lplf, lptm, font_type, lpef)
6035 ENUMLOGFONTEX * lplf;
6036 NEWTEXTMETRICEX * lptm;
6037 int font_type;
6038 enumfont_t * lpef;
6040 /* We are not interested in the extra info we get back from the 'Ex
6041 version - only the fact that we get character set variations
6042 enumerated seperately. */
6043 return enum_font_cb2 ((ENUMLOGFONT *) lplf, (NEWTEXTMETRIC *) lptm,
6044 font_type, lpef);
6047 static int CALLBACK
6048 enum_fontex_cb1 (lplf, lptm, font_type, lpef)
6049 ENUMLOGFONTEX * lplf;
6050 NEWTEXTMETRICEX * lptm;
6051 int font_type;
6052 enumfont_t * lpef;
6054 HMODULE gdi32 = GetModuleHandle ("gdi32.dll");
6055 FARPROC enum_font_families_ex
6056 = GetProcAddress ( gdi32, "EnumFontFamiliesExA");
6057 /* We don't really expect EnumFontFamiliesEx to disappear once we
6058 get here, so don't bother handling it gracefully. */
6059 if (enum_font_families_ex == NULL)
6060 error ("gdi32.dll has disappeared!");
6061 return enum_font_families_ex (lpef->hdc,
6062 &lplf->elfLogFont,
6063 (FONTENUMPROC) enum_fontex_cb2,
6064 (LPARAM) lpef, 0);
6067 /* Interface to fontset handler. (adapted from mw32font.c in Meadow
6068 and xterm.c in Emacs 20.3) */
6070 static Lisp_Object w32_list_bdf_fonts (Lisp_Object pattern, int max_names)
6072 char *fontname, *ptnstr;
6073 Lisp_Object list, tem, newlist = Qnil;
6074 int n_fonts = 0;
6076 list = Vw32_bdf_filename_alist;
6077 ptnstr = SDATA (pattern);
6079 for ( ; CONSP (list); list = XCDR (list))
6081 tem = XCAR (list);
6082 if (CONSP (tem))
6083 fontname = SDATA (XCAR (tem));
6084 else if (STRINGP (tem))
6085 fontname = SDATA (tem);
6086 else
6087 continue;
6089 if (w32_font_match (fontname, ptnstr))
6091 newlist = Fcons (XCAR (tem), newlist);
6092 n_fonts++;
6093 if (max_names >= 0 && n_fonts >= max_names)
6094 break;
6098 return newlist;
6102 /* Return a list of names of available fonts matching PATTERN on frame
6103 F. If SIZE is not 0, it is the size (maximum bound width) of fonts
6104 to be listed. Frame F NULL means we have not yet created any
6105 frame, which means we can't get proper size info, as we don't have
6106 a device context to use for GetTextMetrics.
6107 MAXNAMES sets a limit on how many fonts to match. If MAXNAMES is
6108 negative, then all matching fonts are returned. */
6110 Lisp_Object
6111 w32_list_fonts (f, pattern, size, maxnames)
6112 struct frame *f;
6113 Lisp_Object pattern;
6114 int size;
6115 int maxnames;
6117 Lisp_Object patterns, key = Qnil, tem, tpat;
6118 Lisp_Object list = Qnil, newlist = Qnil, second_best = Qnil;
6119 struct w32_display_info *dpyinfo = &one_w32_display_info;
6120 int n_fonts = 0;
6122 patterns = Fassoc (pattern, Valternate_fontname_alist);
6123 if (NILP (patterns))
6124 patterns = Fcons (pattern, Qnil);
6126 for (; CONSP (patterns); patterns = XCDR (patterns))
6128 enumfont_t ef;
6129 int codepage;
6131 tpat = XCAR (patterns);
6133 if (!STRINGP (tpat))
6134 continue;
6136 /* Avoid expensive EnumFontFamilies functions if we are not
6137 going to be able to output one of these anyway. */
6138 codepage = w32_codepage_for_font (SDATA (tpat));
6139 if (codepage != CP_8BIT && codepage != CP_UNICODE
6140 && codepage != CP_DEFAULT && codepage != CP_UNKNOWN
6141 && !IsValidCodePage(codepage))
6142 continue;
6144 /* See if we cached the result for this particular query.
6145 The cache is an alist of the form:
6146 ((PATTERN (FONTNAME . WIDTH) ...) ...)
6148 if (tem = XCDR (dpyinfo->name_list_element),
6149 !NILP (list = Fassoc (tpat, tem)))
6151 list = Fcdr_safe (list);
6152 /* We have a cached list. Don't have to get the list again. */
6153 goto label_cached;
6156 BLOCK_INPUT;
6157 /* At first, put PATTERN in the cache. */
6158 ef.pattern = tpat;
6159 ef.list = Qnil;
6160 ef.numFonts = 0;
6162 /* Use EnumFontFamiliesEx where it is available, as it knows
6163 about character sets. Fall back to EnumFontFamilies for
6164 older versions of NT that don't support the 'Ex function. */
6165 x_to_w32_font (SDATA (tpat), &ef.logfont);
6167 LOGFONT font_match_pattern;
6168 HMODULE gdi32 = GetModuleHandle ("gdi32.dll");
6169 FARPROC enum_font_families_ex
6170 = GetProcAddress ( gdi32, "EnumFontFamiliesExA");
6172 /* We do our own pattern matching so we can handle wildcards. */
6173 font_match_pattern.lfFaceName[0] = 0;
6174 font_match_pattern.lfPitchAndFamily = 0;
6175 /* We can use the charset, because if it is a wildcard it will
6176 be DEFAULT_CHARSET anyway. */
6177 font_match_pattern.lfCharSet = ef.logfont.lfCharSet;
6179 ef.hdc = GetDC (dpyinfo->root_window);
6181 if (enum_font_families_ex)
6182 enum_font_families_ex (ef.hdc,
6183 &font_match_pattern,
6184 (FONTENUMPROC) enum_fontex_cb1,
6185 (LPARAM) &ef, 0);
6186 else
6187 EnumFontFamilies (ef.hdc, NULL, (FONTENUMPROC) enum_font_cb1,
6188 (LPARAM)&ef);
6190 ReleaseDC (dpyinfo->root_window, ef.hdc);
6193 UNBLOCK_INPUT;
6194 list = ef.list;
6196 /* Make a list of the fonts we got back.
6197 Store that in the font cache for the display. */
6198 XSETCDR (dpyinfo->name_list_element,
6199 Fcons (Fcons (tpat, list),
6200 XCDR (dpyinfo->name_list_element)));
6202 label_cached:
6203 if (NILP (list)) continue; /* Try the remaining alternatives. */
6205 newlist = second_best = Qnil;
6207 /* Make a list of the fonts that have the right width. */
6208 for (; CONSP (list); list = XCDR (list))
6210 int found_size;
6211 tem = XCAR (list);
6213 if (!CONSP (tem))
6214 continue;
6215 if (NILP (XCAR (tem)))
6216 continue;
6217 if (!size)
6219 newlist = Fcons (XCAR (tem), newlist);
6220 n_fonts++;
6221 if (maxnames >= 0 && n_fonts >= maxnames)
6222 break;
6223 else
6224 continue;
6226 if (!INTEGERP (XCDR (tem)))
6228 /* Since we don't yet know the size of the font, we must
6229 load it and try GetTextMetrics. */
6230 W32FontStruct thisinfo;
6231 LOGFONT lf;
6232 HDC hdc;
6233 HANDLE oldobj;
6235 if (!x_to_w32_font (SDATA (XCAR (tem)), &lf))
6236 continue;
6238 BLOCK_INPUT;
6239 thisinfo.bdf = NULL;
6240 thisinfo.hfont = CreateFontIndirect (&lf);
6241 if (thisinfo.hfont == NULL)
6242 continue;
6244 hdc = GetDC (dpyinfo->root_window);
6245 oldobj = SelectObject (hdc, thisinfo.hfont);
6246 if (GetTextMetrics (hdc, &thisinfo.tm))
6247 XSETCDR (tem, make_number (FONT_WIDTH (&thisinfo)));
6248 else
6249 XSETCDR (tem, make_number (0));
6250 SelectObject (hdc, oldobj);
6251 ReleaseDC (dpyinfo->root_window, hdc);
6252 DeleteObject(thisinfo.hfont);
6253 UNBLOCK_INPUT;
6255 found_size = XINT (XCDR (tem));
6256 if (found_size == size)
6258 newlist = Fcons (XCAR (tem), newlist);
6259 n_fonts++;
6260 if (maxnames >= 0 && n_fonts >= maxnames)
6261 break;
6263 /* keep track of the closest matching size in case
6264 no exact match is found. */
6265 else if (found_size > 0)
6267 if (NILP (second_best))
6268 second_best = tem;
6270 else if (found_size < size)
6272 if (XINT (XCDR (second_best)) > size
6273 || XINT (XCDR (second_best)) < found_size)
6274 second_best = tem;
6276 else
6278 if (XINT (XCDR (second_best)) > size
6279 && XINT (XCDR (second_best)) >
6280 found_size)
6281 second_best = tem;
6286 if (!NILP (newlist))
6287 break;
6288 else if (!NILP (second_best))
6290 newlist = Fcons (XCAR (second_best), Qnil);
6291 break;
6295 /* Include any bdf fonts. */
6296 if (n_fonts < maxnames || maxnames < 0)
6298 Lisp_Object combined[2];
6299 combined[0] = w32_list_bdf_fonts (pattern, maxnames - n_fonts);
6300 combined[1] = newlist;
6301 newlist = Fnconc(2, combined);
6304 return newlist;
6308 /* Return a pointer to struct font_info of font FONT_IDX of frame F. */
6309 struct font_info *
6310 w32_get_font_info (f, font_idx)
6311 FRAME_PTR f;
6312 int font_idx;
6314 return (FRAME_W32_FONT_TABLE (f) + font_idx);
6318 struct font_info*
6319 w32_query_font (struct frame *f, char *fontname)
6321 int i;
6322 struct font_info *pfi;
6324 pfi = FRAME_W32_FONT_TABLE (f);
6326 for (i = 0; i < one_w32_display_info.n_fonts ;i++, pfi++)
6328 if (strcmp(pfi->name, fontname) == 0) return pfi;
6331 return NULL;
6334 /* Find a CCL program for a font specified by FONTP, and set the member
6335 `encoder' of the structure. */
6337 void
6338 w32_find_ccl_program (fontp)
6339 struct font_info *fontp;
6341 Lisp_Object list, elt;
6343 for (list = Vfont_ccl_encoder_alist; CONSP (list); list = XCDR (list))
6345 elt = XCAR (list);
6346 if (CONSP (elt)
6347 && STRINGP (XCAR (elt))
6348 && (fast_c_string_match_ignore_case (XCAR (elt), fontp->name)
6349 >= 0))
6350 break;
6352 if (! NILP (list))
6354 struct ccl_program *ccl
6355 = (struct ccl_program *) xmalloc (sizeof (struct ccl_program));
6357 if (setup_ccl_program (ccl, XCDR (elt)) < 0)
6358 xfree (ccl);
6359 else
6360 fontp->font_encoder = ccl;
6365 /* Find BDF files in a specified directory. (use GCPRO when calling,
6366 as this calls lisp to get a directory listing). */
6367 static Lisp_Object
6368 w32_find_bdf_fonts_in_dir (Lisp_Object directory)
6370 Lisp_Object filelist, list = Qnil;
6371 char fontname[100];
6373 if (!STRINGP(directory))
6374 return Qnil;
6376 filelist = Fdirectory_files (directory, Qt,
6377 build_string (".*\\.[bB][dD][fF]"), Qt);
6379 for ( ; CONSP(filelist); filelist = XCDR (filelist))
6381 Lisp_Object filename = XCAR (filelist);
6382 if (w32_BDF_to_x_font (SDATA (filename), fontname, 100))
6383 store_in_alist (&list, build_string (fontname), filename);
6385 return list;
6388 DEFUN ("w32-find-bdf-fonts", Fw32_find_bdf_fonts, Sw32_find_bdf_fonts,
6389 1, 1, 0,
6390 doc: /* Return a list of BDF fonts in DIR.
6391 The list is suitable for appending to w32-bdf-filename-alist. Fonts
6392 which do not contain an xlfd description will not be included in the
6393 list. DIR may be a list of directories. */)
6394 (directory)
6395 Lisp_Object directory;
6397 Lisp_Object list = Qnil;
6398 struct gcpro gcpro1, gcpro2;
6400 if (!CONSP (directory))
6401 return w32_find_bdf_fonts_in_dir (directory);
6403 for ( ; CONSP (directory); directory = XCDR (directory))
6405 Lisp_Object pair[2];
6406 pair[0] = list;
6407 pair[1] = Qnil;
6408 GCPRO2 (directory, list);
6409 pair[1] = w32_find_bdf_fonts_in_dir( XCAR (directory) );
6410 list = Fnconc( 2, pair );
6411 UNGCPRO;
6413 return list;
6417 DEFUN ("xw-color-defined-p", Fxw_color_defined_p, Sxw_color_defined_p, 1, 2, 0,
6418 doc: /* Internal function called by `color-defined-p', which see. */)
6419 (color, frame)
6420 Lisp_Object color, frame;
6422 XColor foo;
6423 FRAME_PTR f = check_x_frame (frame);
6425 CHECK_STRING (color);
6427 if (w32_defined_color (f, SDATA (color), &foo, 0))
6428 return Qt;
6429 else
6430 return Qnil;
6433 DEFUN ("xw-color-values", Fxw_color_values, Sxw_color_values, 1, 2, 0,
6434 doc: /* Internal function called by `color-values', which see. */)
6435 (color, frame)
6436 Lisp_Object color, frame;
6438 XColor foo;
6439 FRAME_PTR f = check_x_frame (frame);
6441 CHECK_STRING (color);
6443 if (w32_defined_color (f, SDATA (color), &foo, 0))
6445 Lisp_Object rgb[3];
6447 rgb[0] = make_number ((GetRValue (foo.pixel) << 8)
6448 | GetRValue (foo.pixel));
6449 rgb[1] = make_number ((GetGValue (foo.pixel) << 8)
6450 | GetGValue (foo.pixel));
6451 rgb[2] = make_number ((GetBValue (foo.pixel) << 8)
6452 | GetBValue (foo.pixel));
6453 return Flist (3, rgb);
6455 else
6456 return Qnil;
6459 DEFUN ("xw-display-color-p", Fxw_display_color_p, Sxw_display_color_p, 0, 1, 0,
6460 doc: /* Internal function called by `display-color-p', which see. */)
6461 (display)
6462 Lisp_Object display;
6464 struct w32_display_info *dpyinfo = check_x_display_info (display);
6466 if ((dpyinfo->n_planes * dpyinfo->n_cbits) <= 2)
6467 return Qnil;
6469 return Qt;
6472 DEFUN ("x-display-grayscale-p", Fx_display_grayscale_p,
6473 Sx_display_grayscale_p, 0, 1, 0,
6474 doc: /* Return t if the X display supports shades of gray.
6475 Note that color displays do support shades of gray.
6476 The optional argument DISPLAY specifies which display to ask about.
6477 DISPLAY should be either a frame or a display name (a string).
6478 If omitted or nil, that stands for the selected frame's display. */)
6479 (display)
6480 Lisp_Object display;
6482 struct w32_display_info *dpyinfo = check_x_display_info (display);
6484 if ((dpyinfo->n_planes * dpyinfo->n_cbits) <= 1)
6485 return Qnil;
6487 return Qt;
6490 DEFUN ("x-display-pixel-width", Fx_display_pixel_width,
6491 Sx_display_pixel_width, 0, 1, 0,
6492 doc: /* Returns the width in pixels of DISPLAY.
6493 The optional argument DISPLAY specifies which display to ask about.
6494 DISPLAY should be either a frame or a display name (a string).
6495 If omitted or nil, that stands for the selected frame's display. */)
6496 (display)
6497 Lisp_Object display;
6499 struct w32_display_info *dpyinfo = check_x_display_info (display);
6501 return make_number (dpyinfo->width);
6504 DEFUN ("x-display-pixel-height", Fx_display_pixel_height,
6505 Sx_display_pixel_height, 0, 1, 0,
6506 doc: /* Returns the height in pixels of DISPLAY.
6507 The optional argument DISPLAY specifies which display to ask about.
6508 DISPLAY should be either a frame or a display name (a string).
6509 If omitted or nil, that stands for the selected frame's display. */)
6510 (display)
6511 Lisp_Object display;
6513 struct w32_display_info *dpyinfo = check_x_display_info (display);
6515 return make_number (dpyinfo->height);
6518 DEFUN ("x-display-planes", Fx_display_planes, Sx_display_planes,
6519 0, 1, 0,
6520 doc: /* Returns the number of bitplanes of DISPLAY.
6521 The optional argument DISPLAY specifies which display to ask about.
6522 DISPLAY should be either a frame or a display name (a string).
6523 If omitted or nil, that stands for the selected frame's display. */)
6524 (display)
6525 Lisp_Object display;
6527 struct w32_display_info *dpyinfo = check_x_display_info (display);
6529 return make_number (dpyinfo->n_planes * dpyinfo->n_cbits);
6532 DEFUN ("x-display-color-cells", Fx_display_color_cells, Sx_display_color_cells,
6533 0, 1, 0,
6534 doc: /* Returns the number of color cells of DISPLAY.
6535 The optional argument DISPLAY specifies which display to ask about.
6536 DISPLAY should be either a frame or a display name (a string).
6537 If omitted or nil, that stands for the selected frame's display. */)
6538 (display)
6539 Lisp_Object display;
6541 struct w32_display_info *dpyinfo = check_x_display_info (display);
6542 HDC hdc;
6543 int cap;
6545 hdc = GetDC (dpyinfo->root_window);
6546 if (dpyinfo->has_palette)
6547 cap = GetDeviceCaps (hdc,SIZEPALETTE);
6548 else
6549 cap = GetDeviceCaps (hdc,NUMCOLORS);
6551 /* We force 24+ bit depths to 24-bit, both to prevent an overflow
6552 and because probably is more meaningful on Windows anyway */
6553 if (cap < 0)
6554 cap = 1 << min(dpyinfo->n_planes * dpyinfo->n_cbits, 24);
6556 ReleaseDC (dpyinfo->root_window, hdc);
6558 return make_number (cap);
6561 DEFUN ("x-server-max-request-size", Fx_server_max_request_size,
6562 Sx_server_max_request_size,
6563 0, 1, 0,
6564 doc: /* Returns the maximum request size of the server of DISPLAY.
6565 The optional argument DISPLAY specifies which display to ask about.
6566 DISPLAY should be either a frame or a display name (a string).
6567 If omitted or nil, that stands for the selected frame's display. */)
6568 (display)
6569 Lisp_Object display;
6571 struct w32_display_info *dpyinfo = check_x_display_info (display);
6573 return make_number (1);
6576 DEFUN ("x-server-vendor", Fx_server_vendor, Sx_server_vendor, 0, 1, 0,
6577 doc: /* Returns the vendor ID string of the W32 system (Microsoft).
6578 The optional argument DISPLAY specifies which display to ask about.
6579 DISPLAY should be either a frame or a display name (a string).
6580 If omitted or nil, that stands for the selected frame's display. */)
6581 (display)
6582 Lisp_Object display;
6584 return build_string ("Microsoft Corp.");
6587 DEFUN ("x-server-version", Fx_server_version, Sx_server_version, 0, 1, 0,
6588 doc: /* Returns the version numbers of the server of DISPLAY.
6589 The value is a list of three integers: the major and minor
6590 version numbers, and the vendor-specific release
6591 number. See also the function `x-server-vendor'.
6593 The optional argument DISPLAY specifies which display to ask about.
6594 DISPLAY should be either a frame or a display name (a string).
6595 If omitted or nil, that stands for the selected frame's display. */)
6596 (display)
6597 Lisp_Object display;
6599 return Fcons (make_number (w32_major_version),
6600 Fcons (make_number (w32_minor_version),
6601 Fcons (make_number (w32_build_number), Qnil)));
6604 DEFUN ("x-display-screens", Fx_display_screens, Sx_display_screens, 0, 1, 0,
6605 doc: /* Returns the number of screens on the server of DISPLAY.
6606 The optional argument DISPLAY specifies which display to ask about.
6607 DISPLAY should be either a frame or a display name (a string).
6608 If omitted or nil, that stands for the selected frame's display. */)
6609 (display)
6610 Lisp_Object display;
6612 return make_number (1);
6615 DEFUN ("x-display-mm-height", Fx_display_mm_height,
6616 Sx_display_mm_height, 0, 1, 0,
6617 doc: /* Returns the height in millimeters of DISPLAY.
6618 The optional argument DISPLAY specifies which display to ask about.
6619 DISPLAY should be either a frame or a display name (a string).
6620 If omitted or nil, that stands for the selected frame's display. */)
6621 (display)
6622 Lisp_Object display;
6624 struct w32_display_info *dpyinfo = check_x_display_info (display);
6625 HDC hdc;
6626 int cap;
6628 hdc = GetDC (dpyinfo->root_window);
6630 cap = GetDeviceCaps (hdc, VERTSIZE);
6632 ReleaseDC (dpyinfo->root_window, hdc);
6634 return make_number (cap);
6637 DEFUN ("x-display-mm-width", Fx_display_mm_width, Sx_display_mm_width, 0, 1, 0,
6638 doc: /* Returns the width in millimeters of DISPLAY.
6639 The optional argument DISPLAY specifies which display to ask about.
6640 DISPLAY should be either a frame or a display name (a string).
6641 If omitted or nil, that stands for the selected frame's display. */)
6642 (display)
6643 Lisp_Object display;
6645 struct w32_display_info *dpyinfo = check_x_display_info (display);
6647 HDC hdc;
6648 int cap;
6650 hdc = GetDC (dpyinfo->root_window);
6652 cap = GetDeviceCaps (hdc, HORZSIZE);
6654 ReleaseDC (dpyinfo->root_window, hdc);
6656 return make_number (cap);
6659 DEFUN ("x-display-backing-store", Fx_display_backing_store,
6660 Sx_display_backing_store, 0, 1, 0,
6661 doc: /* Returns an indication of whether DISPLAY does backing store.
6662 The value may be `always', `when-mapped', or `not-useful'.
6663 The optional argument DISPLAY specifies which display to ask about.
6664 DISPLAY should be either a frame or a display name (a string).
6665 If omitted or nil, that stands for the selected frame's display. */)
6666 (display)
6667 Lisp_Object display;
6669 return intern ("not-useful");
6672 DEFUN ("x-display-visual-class", Fx_display_visual_class,
6673 Sx_display_visual_class, 0, 1, 0,
6674 doc: /* Returns the visual class of DISPLAY.
6675 The value is one of the symbols `static-gray', `gray-scale',
6676 `static-color', `pseudo-color', `true-color', or `direct-color'.
6678 The optional argument DISPLAY specifies which display to ask about.
6679 DISPLAY should be either a frame or a display name (a string).
6680 If omitted or nil, that stands for the selected frame's display. */)
6681 (display)
6682 Lisp_Object display;
6684 struct w32_display_info *dpyinfo = check_x_display_info (display);
6685 Lisp_Object result = Qnil;
6687 if (dpyinfo->has_palette)
6688 result = intern ("pseudo-color");
6689 else if (dpyinfo->n_planes * dpyinfo->n_cbits == 1)
6690 result = intern ("static-grey");
6691 else if (dpyinfo->n_planes * dpyinfo->n_cbits == 4)
6692 result = intern ("static-color");
6693 else if (dpyinfo->n_planes * dpyinfo->n_cbits > 8)
6694 result = intern ("true-color");
6696 return result;
6699 DEFUN ("x-display-save-under", Fx_display_save_under,
6700 Sx_display_save_under, 0, 1, 0,
6701 doc: /* Returns t if DISPLAY supports the save-under feature.
6702 The optional argument DISPLAY specifies which display to ask about.
6703 DISPLAY should be either a frame or a display name (a string).
6704 If omitted or nil, that stands for the selected frame's display. */)
6705 (display)
6706 Lisp_Object display;
6708 return Qnil;
6712 x_pixel_width (f)
6713 register struct frame *f;
6715 return FRAME_PIXEL_WIDTH (f);
6719 x_pixel_height (f)
6720 register struct frame *f;
6722 return FRAME_PIXEL_HEIGHT (f);
6726 x_char_width (f)
6727 register struct frame *f;
6729 return FRAME_COLUMN_WIDTH (f);
6733 x_char_height (f)
6734 register struct frame *f;
6736 return FRAME_LINE_HEIGHT (f);
6740 x_screen_planes (f)
6741 register struct frame *f;
6743 return FRAME_W32_DISPLAY_INFO (f)->n_planes;
6746 /* Return the display structure for the display named NAME.
6747 Open a new connection if necessary. */
6749 struct w32_display_info *
6750 x_display_info_for_name (name)
6751 Lisp_Object name;
6753 Lisp_Object names;
6754 struct w32_display_info *dpyinfo;
6756 CHECK_STRING (name);
6758 for (dpyinfo = &one_w32_display_info, names = w32_display_name_list;
6759 dpyinfo;
6760 dpyinfo = dpyinfo->next, names = XCDR (names))
6762 Lisp_Object tem;
6763 tem = Fstring_equal (XCAR (XCAR (names)), name);
6764 if (!NILP (tem))
6765 return dpyinfo;
6768 /* Use this general default value to start with. */
6769 Vx_resource_name = Vinvocation_name;
6771 validate_x_resource_name ();
6773 dpyinfo = w32_term_init (name, (unsigned char *)0,
6774 (char *) SDATA (Vx_resource_name));
6776 if (dpyinfo == 0)
6777 error ("Cannot connect to server %s", SDATA (name));
6779 w32_in_use = 1;
6780 XSETFASTINT (Vwindow_system_version, 3);
6782 return dpyinfo;
6785 DEFUN ("x-open-connection", Fx_open_connection, Sx_open_connection,
6786 1, 3, 0, doc: /* Open a connection to a server.
6787 DISPLAY is the name of the display to connect to.
6788 Optional second arg XRM-STRING is a string of resources in xrdb format.
6789 If the optional third arg MUST-SUCCEED is non-nil,
6790 terminate Emacs if we can't open the connection. */)
6791 (display, xrm_string, must_succeed)
6792 Lisp_Object display, xrm_string, must_succeed;
6794 unsigned char *xrm_option;
6795 struct w32_display_info *dpyinfo;
6797 /* If initialization has already been done, return now to avoid
6798 overwriting critical parts of one_w32_display_info. */
6799 if (w32_in_use)
6800 return Qnil;
6802 CHECK_STRING (display);
6803 if (! NILP (xrm_string))
6804 CHECK_STRING (xrm_string);
6806 if (! EQ (Vwindow_system, intern ("w32")))
6807 error ("Not using Microsoft Windows");
6809 /* Allow color mapping to be defined externally; first look in user's
6810 HOME directory, then in Emacs etc dir for a file called rgb.txt. */
6812 Lisp_Object color_file;
6813 struct gcpro gcpro1;
6815 color_file = build_string("~/rgb.txt");
6817 GCPRO1 (color_file);
6819 if (NILP (Ffile_readable_p (color_file)))
6820 color_file =
6821 Fexpand_file_name (build_string ("rgb.txt"),
6822 Fsymbol_value (intern ("data-directory")));
6824 Vw32_color_map = Fw32_load_color_file (color_file);
6826 UNGCPRO;
6828 if (NILP (Vw32_color_map))
6829 Vw32_color_map = Fw32_default_color_map ();
6831 /* Merge in system logical colors. */
6832 add_system_logical_colors_to_map (&Vw32_color_map);
6834 if (! NILP (xrm_string))
6835 xrm_option = (unsigned char *) SDATA (xrm_string);
6836 else
6837 xrm_option = (unsigned char *) 0;
6839 /* Use this general default value to start with. */
6840 /* First remove .exe suffix from invocation-name - it looks ugly. */
6842 char basename[ MAX_PATH ], *str;
6844 strcpy (basename, SDATA (Vinvocation_name));
6845 str = strrchr (basename, '.');
6846 if (str) *str = 0;
6847 Vinvocation_name = build_string (basename);
6849 Vx_resource_name = Vinvocation_name;
6851 validate_x_resource_name ();
6853 /* This is what opens the connection and sets x_current_display.
6854 This also initializes many symbols, such as those used for input. */
6855 dpyinfo = w32_term_init (display, xrm_option,
6856 (char *) SDATA (Vx_resource_name));
6858 if (dpyinfo == 0)
6860 if (!NILP (must_succeed))
6861 fatal ("Cannot connect to server %s.\n",
6862 SDATA (display));
6863 else
6864 error ("Cannot connect to server %s", SDATA (display));
6867 w32_in_use = 1;
6869 XSETFASTINT (Vwindow_system_version, 3);
6870 return Qnil;
6873 DEFUN ("x-close-connection", Fx_close_connection,
6874 Sx_close_connection, 1, 1, 0,
6875 doc: /* Close the connection to DISPLAY's server.
6876 For DISPLAY, specify either a frame or a display name (a string).
6877 If DISPLAY is nil, that stands for the selected frame's display. */)
6878 (display)
6879 Lisp_Object display;
6881 struct w32_display_info *dpyinfo = check_x_display_info (display);
6882 int i;
6884 if (dpyinfo->reference_count > 0)
6885 error ("Display still has frames on it");
6887 BLOCK_INPUT;
6888 /* Free the fonts in the font table. */
6889 for (i = 0; i < dpyinfo->n_fonts; i++)
6890 if (dpyinfo->font_table[i].name)
6892 if (dpyinfo->font_table[i].name != dpyinfo->font_table[i].full_name)
6893 xfree (dpyinfo->font_table[i].full_name);
6894 xfree (dpyinfo->font_table[i].name);
6895 w32_unload_font (dpyinfo, dpyinfo->font_table[i].font);
6897 x_destroy_all_bitmaps (dpyinfo);
6899 x_delete_display (dpyinfo);
6900 UNBLOCK_INPUT;
6902 return Qnil;
6905 DEFUN ("x-display-list", Fx_display_list, Sx_display_list, 0, 0, 0,
6906 doc: /* Return the list of display names that Emacs has connections to. */)
6909 Lisp_Object tail, result;
6911 result = Qnil;
6912 for (tail = w32_display_name_list; ! NILP (tail); tail = XCDR (tail))
6913 result = Fcons (XCAR (XCAR (tail)), result);
6915 return result;
6918 DEFUN ("x-synchronize", Fx_synchronize, Sx_synchronize, 1, 2, 0,
6919 doc: /* This is a noop on W32 systems. */)
6920 (on, display)
6921 Lisp_Object display, on;
6923 return Qnil;
6927 /***********************************************************************
6928 Image types
6929 ***********************************************************************/
6931 /* Value is the number of elements of vector VECTOR. */
6933 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
6935 /* List of supported image types. Use define_image_type to add new
6936 types. Use lookup_image_type to find a type for a given symbol. */
6938 static struct image_type *image_types;
6940 /* The symbol `xbm' which is used as the type symbol for XBM images. */
6942 Lisp_Object Qxbm;
6944 /* Keywords. */
6946 extern Lisp_Object QCwidth, QCheight, QCforeground, QCbackground, QCfile;
6947 extern Lisp_Object QCdata, QCtype;
6948 Lisp_Object QCascent, QCmargin, QCrelief;
6949 Lisp_Object QCconversion, QCcolor_symbols, QCheuristic_mask;
6950 Lisp_Object QCindex, QCmatrix, QCcolor_adjustment, QCmask;
6952 /* Other symbols. */
6954 Lisp_Object Qlaplace, Qemboss, Qedge_detection, Qheuristic;
6956 /* Time in seconds after which images should be removed from the cache
6957 if not displayed. */
6959 Lisp_Object Vimage_cache_eviction_delay;
6961 /* Function prototypes. */
6963 static void define_image_type P_ ((struct image_type *type));
6964 static struct image_type *lookup_image_type P_ ((Lisp_Object symbol));
6965 static void image_error P_ ((char *format, Lisp_Object, Lisp_Object));
6966 static void x_laplace P_ ((struct frame *, struct image *));
6967 static void x_emboss P_ ((struct frame *, struct image *));
6968 static int x_build_heuristic_mask P_ ((struct frame *, struct image *,
6969 Lisp_Object));
6972 /* Define a new image type from TYPE. This adds a copy of TYPE to
6973 image_types and adds the symbol *TYPE->type to Vimage_types. */
6975 static void
6976 define_image_type (type)
6977 struct image_type *type;
6979 /* Make a copy of TYPE to avoid a bus error in a dumped Emacs.
6980 The initialized data segment is read-only. */
6981 struct image_type *p = (struct image_type *) xmalloc (sizeof *p);
6982 bcopy (type, p, sizeof *p);
6983 p->next = image_types;
6984 image_types = p;
6985 Vimage_types = Fcons (*p->type, Vimage_types);
6989 /* Look up image type SYMBOL, and return a pointer to its image_type
6990 structure. Value is null if SYMBOL is not a known image type. */
6992 static INLINE struct image_type *
6993 lookup_image_type (symbol)
6994 Lisp_Object symbol;
6996 struct image_type *type;
6998 for (type = image_types; type; type = type->next)
6999 if (EQ (symbol, *type->type))
7000 break;
7002 return type;
7006 /* Value is non-zero if OBJECT is a valid Lisp image specification. A
7007 valid image specification is a list whose car is the symbol
7008 `image', and whose rest is a property list. The property list must
7009 contain a value for key `:type'. That value must be the name of a
7010 supported image type. The rest of the property list depends on the
7011 image type. */
7014 valid_image_p (object)
7015 Lisp_Object object;
7017 int valid_p = 0;
7019 if (IMAGEP (object))
7021 Lisp_Object tem;
7023 for (tem = XCDR (object); CONSP (tem); tem = XCDR (tem))
7024 if (EQ (XCAR (tem), QCtype))
7026 tem = XCDR (tem);
7027 if (CONSP (tem) && SYMBOLP (XCAR (tem)))
7029 struct image_type *type;
7030 type = lookup_image_type (XCAR (tem));
7031 if (type)
7032 valid_p = type->valid_p (object);
7035 break;
7039 return valid_p;
7043 /* Log error message with format string FORMAT and argument ARG.
7044 Signaling an error, e.g. when an image cannot be loaded, is not a
7045 good idea because this would interrupt redisplay, and the error
7046 message display would lead to another redisplay. This function
7047 therefore simply displays a message. */
7049 static void
7050 image_error (format, arg1, arg2)
7051 char *format;
7052 Lisp_Object arg1, arg2;
7054 add_to_log (format, arg1, arg2);
7059 /***********************************************************************
7060 Image specifications
7061 ***********************************************************************/
7063 enum image_value_type
7065 IMAGE_DONT_CHECK_VALUE_TYPE,
7066 IMAGE_STRING_VALUE,
7067 IMAGE_STRING_OR_NIL_VALUE,
7068 IMAGE_SYMBOL_VALUE,
7069 IMAGE_POSITIVE_INTEGER_VALUE,
7070 IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,
7071 IMAGE_NON_NEGATIVE_INTEGER_VALUE,
7072 IMAGE_ASCENT_VALUE,
7073 IMAGE_INTEGER_VALUE,
7074 IMAGE_FUNCTION_VALUE,
7075 IMAGE_NUMBER_VALUE,
7076 IMAGE_BOOL_VALUE
7079 /* Structure used when parsing image specifications. */
7081 struct image_keyword
7083 /* Name of keyword. */
7084 char *name;
7086 /* The type of value allowed. */
7087 enum image_value_type type;
7089 /* Non-zero means key must be present. */
7090 int mandatory_p;
7092 /* Used to recognize duplicate keywords in a property list. */
7093 int count;
7095 /* The value that was found. */
7096 Lisp_Object value;
7100 static int parse_image_spec P_ ((Lisp_Object, struct image_keyword *,
7101 int, Lisp_Object));
7102 static Lisp_Object image_spec_value P_ ((Lisp_Object, Lisp_Object, int *));
7105 /* Parse image spec SPEC according to KEYWORDS. A valid image spec
7106 has the format (image KEYWORD VALUE ...). One of the keyword/
7107 value pairs must be `:type TYPE'. KEYWORDS is a vector of
7108 image_keywords structures of size NKEYWORDS describing other
7109 allowed keyword/value pairs. Value is non-zero if SPEC is valid. */
7111 static int
7112 parse_image_spec (spec, keywords, nkeywords, type)
7113 Lisp_Object spec;
7114 struct image_keyword *keywords;
7115 int nkeywords;
7116 Lisp_Object type;
7118 int i;
7119 Lisp_Object plist;
7121 if (!IMAGEP (spec))
7122 return 0;
7124 plist = XCDR (spec);
7125 while (CONSP (plist))
7127 Lisp_Object key, value;
7129 /* First element of a pair must be a symbol. */
7130 key = XCAR (plist);
7131 plist = XCDR (plist);
7132 if (!SYMBOLP (key))
7133 return 0;
7135 /* There must follow a value. */
7136 if (!CONSP (plist))
7137 return 0;
7138 value = XCAR (plist);
7139 plist = XCDR (plist);
7141 /* Find key in KEYWORDS. Error if not found. */
7142 for (i = 0; i < nkeywords; ++i)
7143 if (strcmp (keywords[i].name, SDATA (SYMBOL_NAME (key))) == 0)
7144 break;
7146 if (i == nkeywords)
7147 continue;
7149 /* Record that we recognized the keyword. If a keywords
7150 was found more than once, it's an error. */
7151 keywords[i].value = value;
7152 ++keywords[i].count;
7154 if (keywords[i].count > 1)
7155 return 0;
7157 /* Check type of value against allowed type. */
7158 switch (keywords[i].type)
7160 case IMAGE_STRING_VALUE:
7161 if (!STRINGP (value))
7162 return 0;
7163 break;
7165 case IMAGE_STRING_OR_NIL_VALUE:
7166 if (!STRINGP (value) && !NILP (value))
7167 return 0;
7168 break;
7170 case IMAGE_SYMBOL_VALUE:
7171 if (!SYMBOLP (value))
7172 return 0;
7173 break;
7175 case IMAGE_POSITIVE_INTEGER_VALUE:
7176 if (!INTEGERP (value) || XINT (value) <= 0)
7177 return 0;
7178 break;
7180 case IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR:
7181 if (INTEGERP (value) && XINT (value) >= 0)
7182 break;
7183 if (CONSP (value)
7184 && INTEGERP (XCAR (value)) && INTEGERP (XCDR (value))
7185 && XINT (XCAR (value)) >= 0 && XINT (XCDR (value)) >= 0)
7186 break;
7187 return 0;
7189 case IMAGE_ASCENT_VALUE:
7190 if (SYMBOLP (value) && EQ (value, Qcenter))
7191 break;
7192 else if (INTEGERP (value)
7193 && XINT (value) >= 0
7194 && XINT (value) <= 100)
7195 break;
7196 return 0;
7198 case IMAGE_NON_NEGATIVE_INTEGER_VALUE:
7199 if (!INTEGERP (value) || XINT (value) < 0)
7200 return 0;
7201 break;
7203 case IMAGE_DONT_CHECK_VALUE_TYPE:
7204 break;
7206 case IMAGE_FUNCTION_VALUE:
7207 value = indirect_function (value);
7208 if (SUBRP (value)
7209 || COMPILEDP (value)
7210 || (CONSP (value) && EQ (XCAR (value), Qlambda)))
7211 break;
7212 return 0;
7214 case IMAGE_NUMBER_VALUE:
7215 if (!INTEGERP (value) && !FLOATP (value))
7216 return 0;
7217 break;
7219 case IMAGE_INTEGER_VALUE:
7220 if (!INTEGERP (value))
7221 return 0;
7222 break;
7224 case IMAGE_BOOL_VALUE:
7225 if (!NILP (value) && !EQ (value, Qt))
7226 return 0;
7227 break;
7229 default:
7230 abort ();
7231 break;
7234 if (EQ (key, QCtype) && !EQ (type, value))
7235 return 0;
7238 /* Check that all mandatory fields are present. */
7239 for (i = 0; i < nkeywords; ++i)
7240 if (keywords[i].mandatory_p && keywords[i].count == 0)
7241 return 0;
7243 return NILP (plist);
7247 /* Return the value of KEY in image specification SPEC. Value is nil
7248 if KEY is not present in SPEC. if FOUND is not null, set *FOUND
7249 to 1 if KEY was found in SPEC, set it to 0 otherwise. */
7251 static Lisp_Object
7252 image_spec_value (spec, key, found)
7253 Lisp_Object spec, key;
7254 int *found;
7256 Lisp_Object tail;
7258 xassert (valid_image_p (spec));
7260 for (tail = XCDR (spec);
7261 CONSP (tail) && CONSP (XCDR (tail));
7262 tail = XCDR (XCDR (tail)))
7264 if (EQ (XCAR (tail), key))
7266 if (found)
7267 *found = 1;
7268 return XCAR (XCDR (tail));
7272 if (found)
7273 *found = 0;
7274 return Qnil;
7278 DEFUN ("image-size", Fimage_size, Simage_size, 1, 3, 0,
7279 doc: /* Return the size of image SPEC as pair (WIDTH . HEIGHT).
7280 PIXELS non-nil means return the size in pixels, otherwise return the
7281 size in canonical character units.
7282 FRAME is the frame on which the image will be displayed. FRAME nil
7283 or omitted means use the selected frame. */)
7284 (spec, pixels, frame)
7285 Lisp_Object spec, pixels, frame;
7287 Lisp_Object size;
7289 size = Qnil;
7290 if (valid_image_p (spec))
7292 struct frame *f = check_x_frame (frame);
7293 int id = lookup_image (f, spec);
7294 struct image *img = IMAGE_FROM_ID (f, id);
7295 int width = img->width + 2 * img->hmargin;
7296 int height = img->height + 2 * img->vmargin;
7298 if (NILP (pixels))
7299 size = Fcons (make_float ((double) width / FRAME_COLUMN_WIDTH (f)),
7300 make_float ((double) height / FRAME_LINE_HEIGHT (f)));
7301 else
7302 size = Fcons (make_number (width), make_number (height));
7304 else
7305 error ("Invalid image specification");
7307 return size;
7311 DEFUN ("image-mask-p", Fimage_mask_p, Simage_mask_p, 1, 2, 0,
7312 doc: /* Return t if image SPEC has a mask bitmap.
7313 FRAME is the frame on which the image will be displayed. FRAME nil
7314 or omitted means use the selected frame. */)
7315 (spec, frame)
7316 Lisp_Object spec, frame;
7318 Lisp_Object mask;
7320 mask = Qnil;
7321 if (valid_image_p (spec))
7323 struct frame *f = check_x_frame (frame);
7324 int id = lookup_image (f, spec);
7325 struct image *img = IMAGE_FROM_ID (f, id);
7326 if (img->mask)
7327 mask = Qt;
7329 else
7330 error ("Invalid image specification");
7332 return mask;
7336 /***********************************************************************
7337 Image type independent image structures
7338 ***********************************************************************/
7340 static struct image *make_image P_ ((Lisp_Object spec, unsigned hash));
7341 static void free_image P_ ((struct frame *f, struct image *img));
7342 static void x_destroy_x_image P_ ((XImage *));
7345 /* Allocate and return a new image structure for image specification
7346 SPEC. SPEC has a hash value of HASH. */
7348 static struct image *
7349 make_image (spec, hash)
7350 Lisp_Object spec;
7351 unsigned hash;
7353 struct image *img = (struct image *) xmalloc (sizeof *img);
7355 xassert (valid_image_p (spec));
7356 bzero (img, sizeof *img);
7357 img->type = lookup_image_type (image_spec_value (spec, QCtype, NULL));
7358 xassert (img->type != NULL);
7359 img->spec = spec;
7360 img->data.lisp_val = Qnil;
7361 img->ascent = DEFAULT_IMAGE_ASCENT;
7362 img->hash = hash;
7363 return img;
7367 /* Free image IMG which was used on frame F, including its resources. */
7369 static void
7370 free_image (f, img)
7371 struct frame *f;
7372 struct image *img;
7374 if (img)
7376 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
7378 /* Remove IMG from the hash table of its cache. */
7379 if (img->prev)
7380 img->prev->next = img->next;
7381 else
7382 c->buckets[img->hash % IMAGE_CACHE_BUCKETS_SIZE] = img->next;
7384 if (img->next)
7385 img->next->prev = img->prev;
7387 c->images[img->id] = NULL;
7389 /* Free resources, then free IMG. */
7390 img->type->free (f, img);
7391 xfree (img);
7396 /* Prepare image IMG for display on frame F. Must be called before
7397 drawing an image. */
7399 void
7400 prepare_image_for_display (f, img)
7401 struct frame *f;
7402 struct image *img;
7404 EMACS_TIME t;
7406 /* We're about to display IMG, so set its timestamp to `now'. */
7407 EMACS_GET_TIME (t);
7408 img->timestamp = EMACS_SECS (t);
7410 /* If IMG doesn't have a pixmap yet, load it now, using the image
7411 type dependent loader function. */
7412 if (img->pixmap == 0 && !img->load_failed_p)
7413 img->load_failed_p = img->type->load (f, img) == 0;
7417 /* Value is the number of pixels for the ascent of image IMG when
7418 drawn in face FACE. */
7421 image_ascent (img, face)
7422 struct image *img;
7423 struct face *face;
7425 int height = img->height + img->vmargin;
7426 int ascent;
7428 if (img->ascent == CENTERED_IMAGE_ASCENT)
7430 if (face->font)
7431 ascent = height / 2 - (FONT_DESCENT(face->font)
7432 - FONT_BASE(face->font)) / 2;
7433 else
7434 ascent = height / 2;
7436 else
7437 ascent = (int) (height * img->ascent / 100.0);
7439 return ascent;
7444 /* Image background colors. */
7446 /* Find the "best" corner color of a bitmap. XIMG is assumed to a device
7447 context with the bitmap selected. */
7448 static COLORREF
7449 four_corners_best (img_dc, width, height)
7450 HDC img_dc;
7451 unsigned long width, height;
7453 COLORREF corners[4], best;
7454 int i, best_count;
7456 /* Get the colors at the corners of img_dc. */
7457 corners[0] = GetPixel (img_dc, 0, 0);
7458 corners[1] = GetPixel (img_dc, width - 1, 0);
7459 corners[2] = GetPixel (img_dc, width - 1, height - 1);
7460 corners[3] = GetPixel (img_dc, 0, height - 1);
7462 /* Choose the most frequently found color as background. */
7463 for (i = best_count = 0; i < 4; ++i)
7465 int j, n;
7467 for (j = n = 0; j < 4; ++j)
7468 if (corners[i] == corners[j])
7469 ++n;
7471 if (n > best_count)
7472 best = corners[i], best_count = n;
7475 return best;
7478 /* Return the `background' field of IMG. If IMG doesn't have one yet,
7479 it is guessed heuristically. If non-zero, IMG_DC is an existing
7480 device context with the image selected to use for the heuristic. */
7482 unsigned long
7483 image_background (img, f, img_dc)
7484 struct image *img;
7485 struct frame *f;
7486 HDC img_dc;
7488 if (! img->background_valid)
7489 /* IMG doesn't have a background yet, try to guess a reasonable value. */
7491 int free_ximg = !img_dc;
7492 HGDIOBJ prev;
7494 if (free_ximg)
7496 HDC frame_dc = get_frame_dc (f);
7497 img_dc = CreateCompatibleDC (frame_dc);
7498 release_frame_dc (f, frame_dc);
7500 prev = SelectObject (img_dc, img->pixmap);
7503 img->background = four_corners_best (img_dc, img->width, img->height);
7505 if (free_ximg)
7507 SelectObject (img_dc, prev);
7508 DeleteDC (img_dc);
7511 img->background_valid = 1;
7514 return img->background;
7517 /* Return the `background_transparent' field of IMG. If IMG doesn't
7518 have one yet, it is guessed heuristically. If non-zero, MASK is an
7519 existing XImage object to use for the heuristic. */
7522 image_background_transparent (img, f, mask)
7523 struct image *img;
7524 struct frame *f;
7525 HDC mask;
7527 if (! img->background_transparent_valid)
7528 /* IMG doesn't have a background yet, try to guess a reasonable value. */
7530 if (img->mask)
7532 int free_mask = !mask;
7533 HGDIOBJ prev;
7535 if (free_mask)
7537 HDC frame_dc = get_frame_dc (f);
7538 mask = CreateCompatibleDC (frame_dc);
7539 release_frame_dc (f, frame_dc);
7541 prev = SelectObject (mask, img->mask);
7544 img->background_transparent
7545 = !four_corners_best (mask, img->width, img->height);
7547 if (free_mask)
7549 SelectObject (mask, prev);
7550 DeleteDC (mask);
7553 else
7554 img->background_transparent = 0;
7556 img->background_transparent_valid = 1;
7559 return img->background_transparent;
7563 /***********************************************************************
7564 Helper functions for X image types
7565 ***********************************************************************/
7567 static void x_clear_image_1 P_ ((struct frame *, struct image *, int,
7568 int, int));
7569 static void x_clear_image P_ ((struct frame *f, struct image *img));
7570 static unsigned long x_alloc_image_color P_ ((struct frame *f,
7571 struct image *img,
7572 Lisp_Object color_name,
7573 unsigned long dflt));
7576 /* Clear X resources of image IMG on frame F. PIXMAP_P non-zero means
7577 free the pixmap if any. MASK_P non-zero means clear the mask
7578 pixmap if any. COLORS_P non-zero means free colors allocated for
7579 the image, if any. */
7581 static void
7582 x_clear_image_1 (f, img, pixmap_p, mask_p, colors_p)
7583 struct frame *f;
7584 struct image *img;
7585 int pixmap_p, mask_p, colors_p;
7587 if (pixmap_p && img->pixmap)
7589 DeleteObject (img->pixmap);
7590 img->pixmap = NULL;
7591 img->background_valid = 0;
7594 if (mask_p && img->mask)
7596 DeleteObject (img->mask);
7597 img->mask = NULL;
7598 img->background_transparent_valid = 0;
7601 if (colors_p && img->ncolors)
7603 #if 0 /* TODO: color table support. */
7604 x_free_colors (f, img->colors, img->ncolors);
7605 #endif
7606 xfree (img->colors);
7607 img->colors = NULL;
7608 img->ncolors = 0;
7612 /* Free X resources of image IMG which is used on frame F. */
7614 static void
7615 x_clear_image (f, img)
7616 struct frame *f;
7617 struct image *img;
7619 if (img->pixmap)
7621 BLOCK_INPUT;
7622 DeleteObject (img->pixmap);
7623 img->pixmap = 0;
7624 UNBLOCK_INPUT;
7627 if (img->ncolors)
7629 #if 0 /* TODO: color table support */
7631 int class = FRAME_W32_DISPLAY_INFO (f)->visual->class;
7633 /* If display has an immutable color map, freeing colors is not
7634 necessary and some servers don't allow it. So don't do it. */
7635 if (class != StaticColor
7636 && class != StaticGray
7637 && class != TrueColor)
7639 Colormap cmap;
7640 BLOCK_INPUT;
7641 cmap = DefaultColormapOfScreen (FRAME_W32_DISPLAY_INFO (f)->screen);
7642 XFreeColors (FRAME_W32_DISPLAY (f), cmap, img->colors,
7643 img->ncolors, 0);
7644 UNBLOCK_INPUT;
7646 #endif
7648 xfree (img->colors);
7649 img->colors = NULL;
7650 img->ncolors = 0;
7655 /* Allocate color COLOR_NAME for image IMG on frame F. If color
7656 cannot be allocated, use DFLT. Add a newly allocated color to
7657 IMG->colors, so that it can be freed again. Value is the pixel
7658 color. */
7660 static unsigned long
7661 x_alloc_image_color (f, img, color_name, dflt)
7662 struct frame *f;
7663 struct image *img;
7664 Lisp_Object color_name;
7665 unsigned long dflt;
7667 XColor color;
7668 unsigned long result;
7670 xassert (STRINGP (color_name));
7672 if (w32_defined_color (f, SDATA (color_name), &color, 1))
7674 /* This isn't called frequently so we get away with simply
7675 reallocating the color vector to the needed size, here. */
7676 ++img->ncolors;
7677 img->colors =
7678 (unsigned long *) xrealloc (img->colors,
7679 img->ncolors * sizeof *img->colors);
7680 img->colors[img->ncolors - 1] = color.pixel;
7681 result = color.pixel;
7683 else
7684 result = dflt;
7685 return result;
7690 /***********************************************************************
7691 Image Cache
7692 ***********************************************************************/
7694 static void cache_image P_ ((struct frame *f, struct image *img));
7695 static void postprocess_image P_ ((struct frame *, struct image *));
7696 static void x_disable_image P_ ((struct frame *, struct image *));
7699 /* Return a new, initialized image cache that is allocated from the
7700 heap. Call free_image_cache to free an image cache. */
7702 struct image_cache *
7703 make_image_cache ()
7705 struct image_cache *c = (struct image_cache *) xmalloc (sizeof *c);
7706 int size;
7708 bzero (c, sizeof *c);
7709 c->size = 50;
7710 c->images = (struct image **) xmalloc (c->size * sizeof *c->images);
7711 size = IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets;
7712 c->buckets = (struct image **) xmalloc (size);
7713 bzero (c->buckets, size);
7714 return c;
7718 /* Free image cache of frame F. Be aware that X frames share images
7719 caches. */
7721 void
7722 free_image_cache (f)
7723 struct frame *f;
7725 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
7726 if (c)
7728 int i;
7730 /* Cache should not be referenced by any frame when freed. */
7731 xassert (c->refcount == 0);
7733 for (i = 0; i < c->used; ++i)
7734 free_image (f, c->images[i]);
7735 xfree (c->images);
7736 xfree (c);
7737 xfree (c->buckets);
7738 FRAME_X_IMAGE_CACHE (f) = NULL;
7743 /* Clear image cache of frame F. FORCE_P non-zero means free all
7744 images. FORCE_P zero means clear only images that haven't been
7745 displayed for some time. Should be called from time to time to
7746 reduce the number of loaded images. If image-eviction-seconds is
7747 non-nil, this frees images in the cache which weren't displayed for
7748 at least that many seconds. */
7750 void
7751 clear_image_cache (f, force_p)
7752 struct frame *f;
7753 int force_p;
7755 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
7757 if (c && INTEGERP (Vimage_cache_eviction_delay))
7759 EMACS_TIME t;
7760 unsigned long old;
7761 int i, nfreed;
7763 EMACS_GET_TIME (t);
7764 old = EMACS_SECS (t) - XFASTINT (Vimage_cache_eviction_delay);
7766 /* Block input so that we won't be interrupted by a SIGIO
7767 while being in an inconsistent state. */
7768 BLOCK_INPUT;
7770 for (i = nfreed = 0; i < c->used; ++i)
7772 struct image *img = c->images[i];
7773 if (img != NULL
7774 && (force_p || (img->timestamp < old)))
7776 free_image (f, img);
7777 ++nfreed;
7781 /* We may be clearing the image cache because, for example,
7782 Emacs was iconified for a longer period of time. In that
7783 case, current matrices may still contain references to
7784 images freed above. So, clear these matrices. */
7785 if (nfreed)
7787 Lisp_Object tail, frame;
7789 FOR_EACH_FRAME (tail, frame)
7791 struct frame *f = XFRAME (frame);
7792 if (FRAME_W32_P (f)
7793 && FRAME_X_IMAGE_CACHE (f) == c)
7794 clear_current_matrices (f);
7797 ++windows_or_buffers_changed;
7800 UNBLOCK_INPUT;
7805 DEFUN ("clear-image-cache", Fclear_image_cache, Sclear_image_cache,
7806 0, 1, 0,
7807 doc: /* Clear the image cache of FRAME.
7808 FRAME nil or omitted means use the selected frame.
7809 FRAME t means clear the image caches of all frames. */)
7810 (frame)
7811 Lisp_Object frame;
7813 if (EQ (frame, Qt))
7815 Lisp_Object tail;
7817 FOR_EACH_FRAME (tail, frame)
7818 if (FRAME_W32_P (XFRAME (frame)))
7819 clear_image_cache (XFRAME (frame), 1);
7821 else
7822 clear_image_cache (check_x_frame (frame), 1);
7824 return Qnil;
7828 /* Compute masks and transform image IMG on frame F, as specified
7829 by the image's specification, */
7831 static void
7832 postprocess_image (f, img)
7833 struct frame *f;
7834 struct image *img;
7836 /* Manipulation of the image's mask. */
7837 if (img->pixmap)
7839 Lisp_Object conversion, spec;
7840 Lisp_Object mask;
7842 spec = img->spec;
7844 /* `:heuristic-mask t'
7845 `:mask heuristic'
7846 means build a mask heuristically.
7847 `:heuristic-mask (R G B)'
7848 `:mask (heuristic (R G B))'
7849 means build a mask from color (R G B) in the
7850 image.
7851 `:mask nil'
7852 means remove a mask, if any. */
7854 mask = image_spec_value (spec, QCheuristic_mask, NULL);
7855 if (!NILP (mask))
7856 x_build_heuristic_mask (f, img, mask);
7857 else
7859 int found_p;
7861 mask = image_spec_value (spec, QCmask, &found_p);
7863 if (EQ (mask, Qheuristic))
7864 x_build_heuristic_mask (f, img, Qt);
7865 else if (CONSP (mask)
7866 && EQ (XCAR (mask), Qheuristic))
7868 if (CONSP (XCDR (mask)))
7869 x_build_heuristic_mask (f, img, XCAR (XCDR (mask)));
7870 else
7871 x_build_heuristic_mask (f, img, XCDR (mask));
7873 else if (NILP (mask) && found_p && img->mask)
7875 DeleteObject (img->mask);
7876 img->mask = NULL;
7881 /* Should we apply an image transformation algorithm? */
7882 conversion = image_spec_value (spec, QCconversion, NULL);
7883 if (EQ (conversion, Qdisabled))
7884 x_disable_image (f, img);
7885 else if (EQ (conversion, Qlaplace))
7886 x_laplace (f, img);
7887 else if (EQ (conversion, Qemboss))
7888 x_emboss (f, img);
7889 else if (CONSP (conversion)
7890 && EQ (XCAR (conversion), Qedge_detection))
7892 Lisp_Object tem;
7893 tem = XCDR (conversion);
7894 if (CONSP (tem))
7895 x_edge_detection (f, img,
7896 Fplist_get (tem, QCmatrix),
7897 Fplist_get (tem, QCcolor_adjustment));
7903 /* Return the id of image with Lisp specification SPEC on frame F.
7904 SPEC must be a valid Lisp image specification (see valid_image_p). */
7907 lookup_image (f, spec)
7908 struct frame *f;
7909 Lisp_Object spec;
7911 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
7912 struct image *img;
7913 int i;
7914 unsigned hash;
7915 struct gcpro gcpro1;
7916 EMACS_TIME now;
7918 /* F must be a window-system frame, and SPEC must be a valid image
7919 specification. */
7920 xassert (FRAME_WINDOW_P (f));
7921 xassert (valid_image_p (spec));
7923 GCPRO1 (spec);
7925 /* Look up SPEC in the hash table of the image cache. */
7926 hash = sxhash (spec, 0);
7927 i = hash % IMAGE_CACHE_BUCKETS_SIZE;
7929 for (img = c->buckets[i]; img; img = img->next)
7930 if (img->hash == hash && !NILP (Fequal (img->spec, spec)))
7931 break;
7933 /* If not found, create a new image and cache it. */
7934 if (img == NULL)
7936 extern Lisp_Object Qpostscript;
7938 BLOCK_INPUT;
7939 img = make_image (spec, hash);
7940 cache_image (f, img);
7941 img->load_failed_p = img->type->load (f, img) == 0;
7943 /* If we can't load the image, and we don't have a width and
7944 height, use some arbitrary width and height so that we can
7945 draw a rectangle for it. */
7946 if (img->load_failed_p)
7948 Lisp_Object value;
7950 value = image_spec_value (spec, QCwidth, NULL);
7951 img->width = (INTEGERP (value)
7952 ? XFASTINT (value) : DEFAULT_IMAGE_WIDTH);
7953 value = image_spec_value (spec, QCheight, NULL);
7954 img->height = (INTEGERP (value)
7955 ? XFASTINT (value) : DEFAULT_IMAGE_HEIGHT);
7957 else
7959 /* Handle image type independent image attributes
7960 `:ascent ASCENT', `:margin MARGIN', `:relief RELIEF',
7961 `:background COLOR'. */
7962 Lisp_Object ascent, margin, relief, bg;
7964 ascent = image_spec_value (spec, QCascent, NULL);
7965 if (INTEGERP (ascent))
7966 img->ascent = XFASTINT (ascent);
7967 else if (EQ (ascent, Qcenter))
7968 img->ascent = CENTERED_IMAGE_ASCENT;
7970 margin = image_spec_value (spec, QCmargin, NULL);
7971 if (INTEGERP (margin) && XINT (margin) >= 0)
7972 img->vmargin = img->hmargin = XFASTINT (margin);
7973 else if (CONSP (margin) && INTEGERP (XCAR (margin))
7974 && INTEGERP (XCDR (margin)))
7976 if (XINT (XCAR (margin)) > 0)
7977 img->hmargin = XFASTINT (XCAR (margin));
7978 if (XINT (XCDR (margin)) > 0)
7979 img->vmargin = XFASTINT (XCDR (margin));
7982 relief = image_spec_value (spec, QCrelief, NULL);
7983 if (INTEGERP (relief))
7985 img->relief = XINT (relief);
7986 img->hmargin += abs (img->relief);
7987 img->vmargin += abs (img->relief);
7990 if (! img->background_valid)
7992 bg = image_spec_value (img->spec, QCbackground, NULL);
7993 if (!NILP (bg))
7995 img->background
7996 = x_alloc_image_color (f, img, bg,
7997 FRAME_BACKGROUND_PIXEL (f));
7998 img->background_valid = 1;
8002 /* Do image transformations and compute masks, unless we
8003 don't have the image yet. */
8004 if (!EQ (*img->type->type, Qpostscript))
8005 postprocess_image (f, img);
8008 UNBLOCK_INPUT;
8009 xassert (!interrupt_input_blocked);
8012 /* We're using IMG, so set its timestamp to `now'. */
8013 EMACS_GET_TIME (now);
8014 img->timestamp = EMACS_SECS (now);
8016 UNGCPRO;
8018 /* Value is the image id. */
8019 return img->id;
8023 /* Cache image IMG in the image cache of frame F. */
8025 static void
8026 cache_image (f, img)
8027 struct frame *f;
8028 struct image *img;
8030 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
8031 int i;
8033 /* Find a free slot in c->images. */
8034 for (i = 0; i < c->used; ++i)
8035 if (c->images[i] == NULL)
8036 break;
8038 /* If no free slot found, maybe enlarge c->images. */
8039 if (i == c->used && c->used == c->size)
8041 c->size *= 2;
8042 c->images = (struct image **) xrealloc (c->images,
8043 c->size * sizeof *c->images);
8046 /* Add IMG to c->images, and assign IMG an id. */
8047 c->images[i] = img;
8048 img->id = i;
8049 if (i == c->used)
8050 ++c->used;
8052 /* Add IMG to the cache's hash table. */
8053 i = img->hash % IMAGE_CACHE_BUCKETS_SIZE;
8054 img->next = c->buckets[i];
8055 if (img->next)
8056 img->next->prev = img;
8057 img->prev = NULL;
8058 c->buckets[i] = img;
8062 /* Call FN on every image in the image cache of frame F. Used to mark
8063 Lisp Objects in the image cache. */
8065 void
8066 forall_images_in_image_cache (f, fn)
8067 struct frame *f;
8068 void (*fn) P_ ((struct image *img));
8070 if (FRAME_LIVE_P (f) && FRAME_W32_P (f))
8072 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
8073 if (c)
8075 int i;
8076 for (i = 0; i < c->used; ++i)
8077 if (c->images[i])
8078 fn (c->images[i]);
8085 /***********************************************************************
8086 W32 support code
8087 ***********************************************************************/
8089 /* Macro for defining functions that will be loaded from image DLLs. */
8090 #define DEF_IMGLIB_FN(func) FARPROC fn_##func
8092 /* Macro for loading those image functions from the library. */
8093 #define LOAD_IMGLIB_FN(lib,func) { \
8094 fn_##func = (void *) GetProcAddress (lib, #func); \
8095 if (!fn_##func) return 0; \
8098 static int x_create_x_image_and_pixmap P_ ((struct frame *, int, int, int,
8099 XImage **, Pixmap *));
8100 static void x_put_x_image P_ ((struct frame *, XImage *, Pixmap, int, int));
8103 /* Create an XImage and a pixmap of size WIDTH x HEIGHT for use on
8104 frame F. Set *XIMG and *PIXMAP to the XImage and Pixmap created.
8105 Set (*XIMG)->data to a raster of WIDTH x HEIGHT pixels allocated
8106 via xmalloc. DEPTH of zero signifies a 24 bit image, otherwise
8107 DEPTH should indicate the bit depth of the image. Print error
8108 messages via image_error if an error occurs. Value is non-zero if
8109 successful. */
8111 static int
8112 x_create_x_image_and_pixmap (f, width, height, depth, ximg, pixmap)
8113 struct frame *f;
8114 int width, height, depth;
8115 XImage **ximg;
8116 Pixmap *pixmap;
8118 BITMAPINFOHEADER *header;
8119 HDC hdc;
8120 int scanline_width_bits;
8121 int remainder;
8122 int palette_colors = 0;
8124 if (depth == 0)
8125 depth = 24;
8127 if (depth != 1 && depth != 4 && depth != 8
8128 && depth != 16 && depth != 24 && depth != 32)
8130 image_error ("Invalid image bit depth specified", Qnil, Qnil);
8131 return 0;
8134 scanline_width_bits = width * depth;
8135 remainder = scanline_width_bits % 32;
8137 if (remainder)
8138 scanline_width_bits += 32 - remainder;
8140 /* Bitmaps with a depth less than 16 need a palette. */
8141 /* BITMAPINFO structure already contains the first RGBQUAD. */
8142 if (depth < 16)
8143 palette_colors = 1 << depth - 1;
8145 *ximg = xmalloc (sizeof (XImage) + palette_colors * sizeof (RGBQUAD));
8146 if (*ximg == NULL)
8148 image_error ("Unable to allocate memory for XImage", Qnil, Qnil);
8149 return 0;
8152 header = &((*ximg)->info.bmiHeader);
8153 bzero (&((*ximg)->info), sizeof (BITMAPINFO));
8154 header->biSize = sizeof (*header);
8155 header->biWidth = width;
8156 header->biHeight = -height; /* negative indicates a top-down bitmap. */
8157 header->biPlanes = 1;
8158 header->biBitCount = depth;
8159 header->biCompression = BI_RGB;
8160 header->biClrUsed = palette_colors;
8162 /* TODO: fill in palette. */
8163 if (depth == 1)
8165 (*ximg)->info.bmiColors[0].rgbBlue = 0;
8166 (*ximg)->info.bmiColors[0].rgbGreen = 0;
8167 (*ximg)->info.bmiColors[0].rgbRed = 0;
8168 (*ximg)->info.bmiColors[0].rgbReserved = 0;
8169 (*ximg)->info.bmiColors[1].rgbBlue = 255;
8170 (*ximg)->info.bmiColors[1].rgbGreen = 255;
8171 (*ximg)->info.bmiColors[1].rgbRed = 255;
8172 (*ximg)->info.bmiColors[1].rgbReserved = 0;
8175 hdc = get_frame_dc (f);
8177 /* Create a DIBSection and raster array for the bitmap,
8178 and store its handle in *pixmap. */
8179 *pixmap = CreateDIBSection (hdc, &((*ximg)->info),
8180 (depth < 16) ? DIB_PAL_COLORS : DIB_RGB_COLORS,
8181 &((*ximg)->data), NULL, 0);
8183 /* Realize display palette and garbage all frames. */
8184 release_frame_dc (f, hdc);
8186 if (*pixmap == NULL)
8188 DWORD err = GetLastError();
8189 Lisp_Object errcode;
8190 /* All system errors are < 10000, so the following is safe. */
8191 XSETINT (errcode, (int) err);
8192 image_error ("Unable to create bitmap, error code %d", errcode, Qnil);
8193 x_destroy_x_image (*ximg);
8194 return 0;
8197 return 1;
8201 /* Destroy XImage XIMG. Free XIMG->data. */
8203 static void
8204 x_destroy_x_image (ximg)
8205 XImage *ximg;
8207 xassert (interrupt_input_blocked);
8208 if (ximg)
8210 /* Data will be freed by DestroyObject. */
8211 ximg->data = NULL;
8212 xfree (ximg);
8217 /* Put XImage XIMG into pixmap PIXMAP on frame F. WIDTH and HEIGHT
8218 are width and height of both the image and pixmap. */
8220 static void
8221 x_put_x_image (f, ximg, pixmap, width, height)
8222 struct frame *f;
8223 XImage *ximg;
8224 Pixmap pixmap;
8225 int width, height;
8227 #if 0 /* I don't think this is necessary looking at where it is used. */
8228 HDC hdc = get_frame_dc (f);
8229 SetDIBits (hdc, pixmap, 0, height, ximg->data, &(ximg->info), DIB_RGB_COLORS);
8230 release_frame_dc (f, hdc);
8231 #endif
8235 /***********************************************************************
8236 File Handling
8237 ***********************************************************************/
8239 static Lisp_Object x_find_image_file P_ ((Lisp_Object));
8240 static char *slurp_file P_ ((char *, int *));
8243 /* Find image file FILE. Look in data-directory, then
8244 x-bitmap-file-path. Value is the full name of the file found, or
8245 nil if not found. */
8247 static Lisp_Object
8248 x_find_image_file (file)
8249 Lisp_Object file;
8251 Lisp_Object file_found, search_path;
8252 struct gcpro gcpro1, gcpro2;
8253 int fd;
8255 file_found = Qnil;
8256 search_path = Fcons (Vdata_directory, Vx_bitmap_file_path);
8257 GCPRO2 (file_found, search_path);
8259 /* Try to find FILE in data-directory, then x-bitmap-file-path. */
8260 fd = openp (search_path, file, Qnil, &file_found, Qnil);
8262 if (fd == -1)
8263 file_found = Qnil;
8264 else
8265 close (fd);
8267 UNGCPRO;
8268 return file_found;
8272 /* Read FILE into memory. Value is a pointer to a buffer allocated
8273 with xmalloc holding FILE's contents. Value is null if an error
8274 occurred. *SIZE is set to the size of the file. */
8276 static char *
8277 slurp_file (file, size)
8278 char *file;
8279 int *size;
8281 FILE *fp = NULL;
8282 char *buf = NULL;
8283 struct stat st;
8285 if (stat (file, &st) == 0
8286 && (fp = fopen (file, "rb")) != NULL
8287 && (buf = (char *) xmalloc (st.st_size),
8288 fread (buf, 1, st.st_size, fp) == st.st_size))
8290 *size = st.st_size;
8291 fclose (fp);
8293 else
8295 if (fp)
8296 fclose (fp);
8297 if (buf)
8299 xfree (buf);
8300 buf = NULL;
8304 return buf;
8309 /***********************************************************************
8310 XBM images
8311 ***********************************************************************/
8313 static int xbm_scan P_ ((char **, char *, char *, int *));
8314 static int xbm_load P_ ((struct frame *f, struct image *img));
8315 static int xbm_load_image P_ ((struct frame *f, struct image *img,
8316 char *, char *));
8317 static int xbm_image_p P_ ((Lisp_Object object));
8318 static int xbm_read_bitmap_data P_ ((char *, char *, int *, int *,
8319 unsigned char **));
8320 static int xbm_file_p P_ ((Lisp_Object));
8323 /* Indices of image specification fields in xbm_format, below. */
8325 enum xbm_keyword_index
8327 XBM_TYPE,
8328 XBM_FILE,
8329 XBM_WIDTH,
8330 XBM_HEIGHT,
8331 XBM_DATA,
8332 XBM_FOREGROUND,
8333 XBM_BACKGROUND,
8334 XBM_ASCENT,
8335 XBM_MARGIN,
8336 XBM_RELIEF,
8337 XBM_ALGORITHM,
8338 XBM_HEURISTIC_MASK,
8339 XBM_MASK,
8340 XBM_LAST
8343 /* Vector of image_keyword structures describing the format
8344 of valid XBM image specifications. */
8346 static struct image_keyword xbm_format[XBM_LAST] =
8348 {":type", IMAGE_SYMBOL_VALUE, 1},
8349 {":file", IMAGE_STRING_VALUE, 0},
8350 {":width", IMAGE_POSITIVE_INTEGER_VALUE, 0},
8351 {":height", IMAGE_POSITIVE_INTEGER_VALUE, 0},
8352 {":data", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
8353 {":foreground", IMAGE_STRING_OR_NIL_VALUE, 0},
8354 {":background", IMAGE_STRING_OR_NIL_VALUE, 0},
8355 {":ascent", IMAGE_ASCENT_VALUE, 0},
8356 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
8357 {":relief", IMAGE_INTEGER_VALUE, 0},
8358 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
8359 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
8360 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0}
8363 /* Structure describing the image type XBM. */
8365 static struct image_type xbm_type =
8367 &Qxbm,
8368 xbm_image_p,
8369 xbm_load,
8370 x_clear_image,
8371 NULL
8374 /* Tokens returned from xbm_scan. */
8376 enum xbm_token
8378 XBM_TK_IDENT = 256,
8379 XBM_TK_NUMBER
8383 /* Return non-zero if OBJECT is a valid XBM-type image specification.
8384 A valid specification is a list starting with the symbol `image'
8385 The rest of the list is a property list which must contain an
8386 entry `:type xbm..
8388 If the specification specifies a file to load, it must contain
8389 an entry `:file FILENAME' where FILENAME is a string.
8391 If the specification is for a bitmap loaded from memory it must
8392 contain `:width WIDTH', `:height HEIGHT', and `:data DATA', where
8393 WIDTH and HEIGHT are integers > 0. DATA may be:
8395 1. a string large enough to hold the bitmap data, i.e. it must
8396 have a size >= (WIDTH + 7) / 8 * HEIGHT
8398 2. a bool-vector of size >= WIDTH * HEIGHT
8400 3. a vector of strings or bool-vectors, one for each line of the
8401 bitmap.
8403 4. A string containing an in-memory XBM file. WIDTH and HEIGHT
8404 may not be specified in this case because they are defined in the
8405 XBM file.
8407 Both the file and data forms may contain the additional entries
8408 `:background COLOR' and `:foreground COLOR'. If not present,
8409 foreground and background of the frame on which the image is
8410 displayed is used. */
8412 static int
8413 xbm_image_p (object)
8414 Lisp_Object object;
8416 struct image_keyword kw[XBM_LAST];
8418 bcopy (xbm_format, kw, sizeof kw);
8419 if (!parse_image_spec (object, kw, XBM_LAST, Qxbm))
8420 return 0;
8422 xassert (EQ (kw[XBM_TYPE].value, Qxbm));
8424 if (kw[XBM_FILE].count)
8426 if (kw[XBM_WIDTH].count || kw[XBM_HEIGHT].count || kw[XBM_DATA].count)
8427 return 0;
8429 else if (kw[XBM_DATA].count && xbm_file_p (kw[XBM_DATA].value))
8431 /* In-memory XBM file. */
8432 if (kw[XBM_WIDTH].count || kw[XBM_HEIGHT].count || kw[XBM_FILE].count)
8433 return 0;
8435 else
8437 Lisp_Object data;
8438 int width, height;
8440 /* Entries for `:width', `:height' and `:data' must be present. */
8441 if (!kw[XBM_WIDTH].count
8442 || !kw[XBM_HEIGHT].count
8443 || !kw[XBM_DATA].count)
8444 return 0;
8446 data = kw[XBM_DATA].value;
8447 width = XFASTINT (kw[XBM_WIDTH].value);
8448 height = XFASTINT (kw[XBM_HEIGHT].value);
8450 /* Check type of data, and width and height against contents of
8451 data. */
8452 if (VECTORP (data))
8454 int i;
8456 /* Number of elements of the vector must be >= height. */
8457 if (XVECTOR (data)->size < height)
8458 return 0;
8460 /* Each string or bool-vector in data must be large enough
8461 for one line of the image. */
8462 for (i = 0; i < height; ++i)
8464 Lisp_Object elt = XVECTOR (data)->contents[i];
8466 if (STRINGP (elt))
8468 if (SCHARS (elt)
8469 < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR)
8470 return 0;
8472 else if (BOOL_VECTOR_P (elt))
8474 if (XBOOL_VECTOR (elt)->size < width)
8475 return 0;
8477 else
8478 return 0;
8481 else if (STRINGP (data))
8483 if (SCHARS (data)
8484 < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR * height)
8485 return 0;
8487 else if (BOOL_VECTOR_P (data))
8489 if (XBOOL_VECTOR (data)->size < width * height)
8490 return 0;
8492 else
8493 return 0;
8496 return 1;
8500 /* Scan a bitmap file. FP is the stream to read from. Value is
8501 either an enumerator from enum xbm_token, or a character for a
8502 single-character token, or 0 at end of file. If scanning an
8503 identifier, store the lexeme of the identifier in SVAL. If
8504 scanning a number, store its value in *IVAL. */
8506 static int
8507 xbm_scan (s, end, sval, ival)
8508 char **s, *end;
8509 char *sval;
8510 int *ival;
8512 int c;
8514 loop:
8516 /* Skip white space. */
8517 while (*s < end && (c = *(*s)++, isspace (c)))
8520 if (*s >= end)
8521 c = 0;
8522 else if (isdigit (c))
8524 int value = 0, digit;
8526 if (c == '0' && *s < end)
8528 c = *(*s)++;
8529 if (c == 'x' || c == 'X')
8531 while (*s < end)
8533 c = *(*s)++;
8534 if (isdigit (c))
8535 digit = c - '0';
8536 else if (c >= 'a' && c <= 'f')
8537 digit = c - 'a' + 10;
8538 else if (c >= 'A' && c <= 'F')
8539 digit = c - 'A' + 10;
8540 else
8541 break;
8542 value = 16 * value + digit;
8545 else if (isdigit (c))
8547 value = c - '0';
8548 while (*s < end
8549 && (c = *(*s)++, isdigit (c)))
8550 value = 8 * value + c - '0';
8553 else
8555 value = c - '0';
8556 while (*s < end
8557 && (c = *(*s)++, isdigit (c)))
8558 value = 10 * value + c - '0';
8561 if (*s < end)
8562 *s = *s - 1;
8563 *ival = value;
8564 c = XBM_TK_NUMBER;
8566 else if (isalpha (c) || c == '_')
8568 *sval++ = c;
8569 while (*s < end
8570 && (c = *(*s)++, (isalnum (c) || c == '_')))
8571 *sval++ = c;
8572 *sval = 0;
8573 if (*s < end)
8574 *s = *s - 1;
8575 c = XBM_TK_IDENT;
8577 else if (c == '/' && **s == '*')
8579 /* C-style comment. */
8580 ++*s;
8581 while (**s && (**s != '*' || *(*s + 1) != '/'))
8582 ++*s;
8583 if (**s)
8585 *s += 2;
8586 goto loop;
8590 return c;
8594 /* XBM bits seem to be backward within bytes compared with how
8595 Windows does things. */
8596 static unsigned char reflect_byte (unsigned char orig)
8598 int i;
8599 unsigned char reflected = 0x00;
8600 for (i = 0; i < 8; i++)
8602 if (orig & (0x01 << i))
8603 reflected |= 0x80 >> i;
8605 return reflected;
8609 /* Create a Windows bitmap from X bitmap data. */
8610 static HBITMAP
8611 w32_create_pixmap_from_bitmap_data (int width, int height, char *data)
8613 int i, j, w1, w2;
8614 char *bits, *p;
8615 HBITMAP bmp;
8617 w1 = (width + 7) / 8; /* nb of 8bits elt in X bitmap */
8618 w2 = ((width + 15) / 16) * 2; /* nb of 16bits elt in W32 bitmap */
8619 bits = (char *) alloca (height * w2);
8620 bzero (bits, height * w2);
8621 for (i = 0; i < height; i++)
8623 p = bits + i*w2;
8624 for (j = 0; j < w1; j++)
8625 *p++ = reflect_byte(*data++);
8627 bmp = CreateBitmap (width, height, 1, 1, bits);
8629 return bmp;
8633 /* Replacement for XReadBitmapFileData which isn't available under old
8634 X versions. CONTENTS is a pointer to a buffer to parse; END is the
8635 buffer's end. Set *WIDTH and *HEIGHT to the width and height of
8636 the image. Return in *DATA the bitmap data allocated with xmalloc.
8637 Value is non-zero if successful. DATA null means just test if
8638 CONTENTS looks like an in-memory XBM file. */
8640 static int
8641 xbm_read_bitmap_data (contents, end, width, height, data)
8642 char *contents, *end;
8643 int *width, *height;
8644 unsigned char **data;
8646 char *s = contents;
8647 char buffer[BUFSIZ];
8648 int padding_p = 0;
8649 int v10 = 0;
8650 int bytes_per_line, i, nbytes;
8651 unsigned char *p;
8652 int value;
8653 int LA1;
8655 #define match() \
8656 LA1 = xbm_scan (&s, end, buffer, &value)
8658 #define expect(TOKEN) \
8659 if (LA1 != (TOKEN)) \
8660 goto failure; \
8661 else \
8662 match ()
8664 #define expect_ident(IDENT) \
8665 if (LA1 == XBM_TK_IDENT && strcmp (buffer, (IDENT)) == 0) \
8666 match (); \
8667 else \
8668 goto failure
8670 *width = *height = -1;
8671 if (data)
8672 *data = NULL;
8673 LA1 = xbm_scan (&s, end, buffer, &value);
8675 /* Parse defines for width, height and hot-spots. */
8676 while (LA1 == '#')
8678 match ();
8679 expect_ident ("define");
8680 expect (XBM_TK_IDENT);
8682 if (LA1 == XBM_TK_NUMBER);
8684 char *p = strrchr (buffer, '_');
8685 p = p ? p + 1 : buffer;
8686 if (strcmp (p, "width") == 0)
8687 *width = value;
8688 else if (strcmp (p, "height") == 0)
8689 *height = value;
8691 expect (XBM_TK_NUMBER);
8694 if (*width < 0 || *height < 0)
8695 goto failure;
8696 else if (data == NULL)
8697 goto success;
8699 /* Parse bits. Must start with `static'. */
8700 expect_ident ("static");
8701 if (LA1 == XBM_TK_IDENT)
8703 if (strcmp (buffer, "unsigned") == 0)
8705 match ();
8706 expect_ident ("char");
8708 else if (strcmp (buffer, "short") == 0)
8710 match ();
8711 v10 = 1;
8712 if (*width % 16 && *width % 16 < 9)
8713 padding_p = 1;
8715 else if (strcmp (buffer, "char") == 0)
8716 match ();
8717 else
8718 goto failure;
8720 else
8721 goto failure;
8723 expect (XBM_TK_IDENT);
8724 expect ('[');
8725 expect (']');
8726 expect ('=');
8727 expect ('{');
8729 bytes_per_line = (*width + 7) / 8 + padding_p;
8730 nbytes = bytes_per_line * *height;
8731 p = *data = (char *) xmalloc (nbytes);
8733 if (v10)
8735 for (i = 0; i < nbytes; i += 2)
8737 int val = value;
8738 expect (XBM_TK_NUMBER);
8740 *p++ = ~ val;
8741 if (!padding_p || ((i + 2) % bytes_per_line))
8742 *p++ = ~ (value >> 8);
8744 if (LA1 == ',' || LA1 == '}')
8745 match ();
8746 else
8747 goto failure;
8750 else
8752 for (i = 0; i < nbytes; ++i)
8754 int val = value;
8755 expect (XBM_TK_NUMBER);
8757 *p++ = ~ val;
8759 if (LA1 == ',' || LA1 == '}')
8760 match ();
8761 else
8762 goto failure;
8766 success:
8767 return 1;
8769 failure:
8771 if (data && *data)
8773 xfree (*data);
8774 *data = NULL;
8776 return 0;
8778 #undef match
8779 #undef expect
8780 #undef expect_ident
8783 static void convert_mono_to_color_image (f, img, foreground, background)
8784 struct frame *f;
8785 struct image *img;
8786 COLORREF foreground, background;
8788 HDC hdc, old_img_dc, new_img_dc;
8789 HGDIOBJ old_prev, new_prev;
8790 HBITMAP new_pixmap;
8792 hdc = get_frame_dc (f);
8793 old_img_dc = CreateCompatibleDC (hdc);
8794 new_img_dc = CreateCompatibleDC (hdc);
8795 new_pixmap = CreateCompatibleBitmap (hdc, img->width, img->height);
8796 release_frame_dc (f, hdc);
8797 old_prev = SelectObject (old_img_dc, img->pixmap);
8798 new_prev = SelectObject (new_img_dc, new_pixmap);
8799 SetTextColor (new_img_dc, foreground);
8800 SetBkColor (new_img_dc, background);
8802 BitBlt (new_img_dc, 0, 0, img->width, img->height, old_img_dc,
8803 0, 0, SRCCOPY);
8805 SelectObject (old_img_dc, old_prev);
8806 SelectObject (new_img_dc, new_prev);
8807 DeleteDC (old_img_dc);
8808 DeleteDC (new_img_dc);
8809 DeleteObject (img->pixmap);
8810 if (new_pixmap == 0)
8811 fprintf (stderr, "Failed to convert image to color.\n");
8812 else
8813 img->pixmap = new_pixmap;
8816 /* Load XBM image IMG which will be displayed on frame F from buffer
8817 CONTENTS. END is the end of the buffer. Value is non-zero if
8818 successful. */
8820 static int
8821 xbm_load_image (f, img, contents, end)
8822 struct frame *f;
8823 struct image *img;
8824 char *contents, *end;
8826 int rc;
8827 unsigned char *data;
8828 int success_p = 0;
8830 rc = xbm_read_bitmap_data (contents, end, &img->width, &img->height, &data);
8831 if (rc)
8833 unsigned long foreground = FRAME_FOREGROUND_PIXEL (f);
8834 unsigned long background = FRAME_BACKGROUND_PIXEL (f);
8835 int non_default_colors = 0;
8836 Lisp_Object value;
8838 xassert (img->width > 0 && img->height > 0);
8840 /* Get foreground and background colors, maybe allocate colors. */
8841 value = image_spec_value (img->spec, QCforeground, NULL);
8842 if (!NILP (value))
8844 foreground = x_alloc_image_color (f, img, value, foreground);
8845 non_default_colors = 1;
8847 value = image_spec_value (img->spec, QCbackground, NULL);
8848 if (!NILP (value))
8850 background = x_alloc_image_color (f, img, value, background);
8851 img->background = background;
8852 img->background_valid = 1;
8853 non_default_colors = 1;
8855 img->pixmap
8856 = w32_create_pixmap_from_bitmap_data (img->width, img->height, data);
8858 /* If colors were specified, transfer the bitmap to a color one. */
8859 if (non_default_colors)
8860 convert_mono_to_color_image (f, img, foreground, background);
8862 xfree (data);
8864 if (img->pixmap == 0)
8866 x_clear_image (f, img);
8867 image_error ("Unable to create X pixmap for `%s'", img->spec, Qnil);
8869 else
8870 success_p = 1;
8872 else
8873 image_error ("Error loading XBM image `%s'", img->spec, Qnil);
8875 return success_p;
8879 /* Value is non-zero if DATA looks like an in-memory XBM file. */
8881 static int
8882 xbm_file_p (data)
8883 Lisp_Object data;
8885 int w, h;
8886 return (STRINGP (data)
8887 && xbm_read_bitmap_data (SDATA (data),
8888 (SDATA (data)
8889 + SBYTES (data)),
8890 &w, &h, NULL));
8894 /* Fill image IMG which is used on frame F with pixmap data. Value is
8895 non-zero if successful. */
8897 static int
8898 xbm_load (f, img)
8899 struct frame *f;
8900 struct image *img;
8902 int success_p = 0;
8903 Lisp_Object file_name;
8905 xassert (xbm_image_p (img->spec));
8907 /* If IMG->spec specifies a file name, create a non-file spec from it. */
8908 file_name = image_spec_value (img->spec, QCfile, NULL);
8909 if (STRINGP (file_name))
8911 Lisp_Object file;
8912 char *contents;
8913 int size;
8914 struct gcpro gcpro1;
8916 file = x_find_image_file (file_name);
8917 GCPRO1 (file);
8918 if (!STRINGP (file))
8920 image_error ("Cannot find image file `%s'", file_name, Qnil);
8921 UNGCPRO;
8922 return 0;
8925 contents = slurp_file (SDATA (file), &size);
8926 if (contents == NULL)
8928 image_error ("Error loading XBM image `%s'", img->spec, Qnil);
8929 UNGCPRO;
8930 return 0;
8933 success_p = xbm_load_image (f, img, contents, contents + size);
8934 UNGCPRO;
8936 else
8938 struct image_keyword fmt[XBM_LAST];
8939 Lisp_Object data;
8940 unsigned long foreground = FRAME_FOREGROUND_PIXEL (f);
8941 unsigned long background = FRAME_BACKGROUND_PIXEL (f);
8942 int non_default_colors = 0;
8943 char *bits;
8944 int parsed_p;
8945 int in_memory_file_p = 0;
8947 /* See if data looks like an in-memory XBM file. */
8948 data = image_spec_value (img->spec, QCdata, NULL);
8949 in_memory_file_p = xbm_file_p (data);
8951 /* Parse the image specification. */
8952 bcopy (xbm_format, fmt, sizeof fmt);
8953 parsed_p = parse_image_spec (img->spec, fmt, XBM_LAST, Qxbm);
8954 xassert (parsed_p);
8956 /* Get specified width, and height. */
8957 if (!in_memory_file_p)
8959 img->width = XFASTINT (fmt[XBM_WIDTH].value);
8960 img->height = XFASTINT (fmt[XBM_HEIGHT].value);
8961 xassert (img->width > 0 && img->height > 0);
8964 /* Get foreground and background colors, maybe allocate colors. */
8965 if (fmt[XBM_FOREGROUND].count
8966 && STRINGP (fmt[XBM_FOREGROUND].value))
8968 foreground = x_alloc_image_color (f, img, fmt[XBM_FOREGROUND].value,
8969 foreground);
8970 non_default_colors = 1;
8973 if (fmt[XBM_BACKGROUND].count
8974 && STRINGP (fmt[XBM_BACKGROUND].value))
8976 background = x_alloc_image_color (f, img, fmt[XBM_BACKGROUND].value,
8977 background);
8978 non_default_colors = 1;
8981 if (in_memory_file_p)
8982 success_p = xbm_load_image (f, img, SDATA (data),
8983 (SDATA (data)
8984 + SBYTES (data)));
8985 else
8987 if (VECTORP (data))
8989 int i;
8990 char *p;
8991 int nbytes = (img->width + BITS_PER_CHAR - 1) / BITS_PER_CHAR;
8993 p = bits = (char *) alloca (nbytes * img->height);
8994 for (i = 0; i < img->height; ++i, p += nbytes)
8996 Lisp_Object line = XVECTOR (data)->contents[i];
8997 if (STRINGP (line))
8998 bcopy (SDATA (line), p, nbytes);
8999 else
9000 bcopy (XBOOL_VECTOR (line)->data, p, nbytes);
9003 else if (STRINGP (data))
9004 bits = SDATA (data);
9005 else
9006 bits = XBOOL_VECTOR (data)->data;
9008 /* Create the pixmap. */
9009 img->pixmap
9010 = w32_create_pixmap_from_bitmap_data (img->width, img->height,
9011 bits);
9013 /* If colors were specified, transfer the bitmap to a color one. */
9014 if (non_default_colors)
9015 convert_mono_to_color_image (f, img, foreground, background);
9017 if (img->pixmap)
9018 success_p = 1;
9019 else
9021 image_error ("Unable to create pixmap for XBM image `%s'",
9022 img->spec, Qnil);
9023 x_clear_image (f, img);
9028 return success_p;
9033 /***********************************************************************
9034 XPM images
9035 ***********************************************************************/
9037 #if HAVE_XPM
9039 static int xpm_image_p P_ ((Lisp_Object object));
9040 static int xpm_load P_ ((struct frame *f, struct image *img));
9041 static int xpm_valid_color_symbols_p P_ ((Lisp_Object));
9043 /* Indicate to xpm.h that we don't have Xlib. */
9044 #define FOR_MSW
9045 /* simx.h in xpm defines XColor and XImage differently than Emacs. */
9046 #define XColor xpm_XColor
9047 #define XImage xpm_XImage
9048 #define PIXEL_ALREADY_TYPEDEFED
9049 #include "X11/xpm.h"
9050 #undef FOR_MSW
9051 #undef XColor
9052 #undef XImage
9053 #undef PIXEL_ALREADY_TYPEDEFED
9055 /* The symbol `xpm' identifying XPM-format images. */
9057 Lisp_Object Qxpm;
9059 /* Indices of image specification fields in xpm_format, below. */
9061 enum xpm_keyword_index
9063 XPM_TYPE,
9064 XPM_FILE,
9065 XPM_DATA,
9066 XPM_ASCENT,
9067 XPM_MARGIN,
9068 XPM_RELIEF,
9069 XPM_ALGORITHM,
9070 XPM_HEURISTIC_MASK,
9071 XPM_MASK,
9072 XPM_COLOR_SYMBOLS,
9073 XPM_BACKGROUND,
9074 XPM_LAST
9077 /* Vector of image_keyword structures describing the format
9078 of valid XPM image specifications. */
9080 static struct image_keyword xpm_format[XPM_LAST] =
9082 {":type", IMAGE_SYMBOL_VALUE, 1},
9083 {":file", IMAGE_STRING_VALUE, 0},
9084 {":data", IMAGE_STRING_VALUE, 0},
9085 {":ascent", IMAGE_ASCENT_VALUE, 0},
9086 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
9087 {":relief", IMAGE_INTEGER_VALUE, 0},
9088 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
9089 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
9090 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
9091 {":color-symbols", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
9092 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
9095 /* Structure describing the image type XPM. */
9097 static struct image_type xpm_type =
9099 &Qxpm,
9100 xpm_image_p,
9101 xpm_load,
9102 x_clear_image,
9103 NULL
9107 /* XPM library details. */
9109 DEF_IMGLIB_FN (XpmFreeAttributes);
9110 DEF_IMGLIB_FN (XpmCreateImageFromBuffer);
9111 DEF_IMGLIB_FN (XpmReadFileToImage);
9112 DEF_IMGLIB_FN (XImageFree);
9115 static int
9116 init_xpm_functions (library)
9117 HMODULE library;
9119 LOAD_IMGLIB_FN (library, XpmFreeAttributes);
9120 LOAD_IMGLIB_FN (library, XpmCreateImageFromBuffer);
9121 LOAD_IMGLIB_FN (library, XpmReadFileToImage);
9122 LOAD_IMGLIB_FN (library, XImageFree);
9124 return 1;
9127 /* Value is non-zero if COLOR_SYMBOLS is a valid color symbols list
9128 for XPM images. Such a list must consist of conses whose car and
9129 cdr are strings. */
9131 static int
9132 xpm_valid_color_symbols_p (color_symbols)
9133 Lisp_Object color_symbols;
9135 while (CONSP (color_symbols))
9137 Lisp_Object sym = XCAR (color_symbols);
9138 if (!CONSP (sym)
9139 || !STRINGP (XCAR (sym))
9140 || !STRINGP (XCDR (sym)))
9141 break;
9142 color_symbols = XCDR (color_symbols);
9145 return NILP (color_symbols);
9149 /* Value is non-zero if OBJECT is a valid XPM image specification. */
9151 static int
9152 xpm_image_p (object)
9153 Lisp_Object object;
9155 struct image_keyword fmt[XPM_LAST];
9156 bcopy (xpm_format, fmt, sizeof fmt);
9157 return (parse_image_spec (object, fmt, XPM_LAST, Qxpm)
9158 /* Either `:file' or `:data' must be present. */
9159 && fmt[XPM_FILE].count + fmt[XPM_DATA].count == 1
9160 /* Either no `:color-symbols' or it's a list of conses
9161 whose car and cdr are strings. */
9162 && (fmt[XPM_COLOR_SYMBOLS].count == 0
9163 || xpm_valid_color_symbols_p (fmt[XPM_COLOR_SYMBOLS].value)));
9167 /* Load image IMG which will be displayed on frame F. Value is
9168 non-zero if successful. */
9170 static int
9171 xpm_load (f, img)
9172 struct frame *f;
9173 struct image *img;
9175 HDC hdc;
9176 int rc;
9177 XpmAttributes attrs;
9178 Lisp_Object specified_file, color_symbols;
9179 xpm_XImage * xpm_image, * xpm_mask;
9181 /* Configure the XPM lib. Use the visual of frame F. Allocate
9182 close colors. Return colors allocated. */
9183 bzero (&attrs, sizeof attrs);
9184 xpm_image = xpm_mask = NULL;
9186 #if 0
9187 attrs.visual = FRAME_X_VISUAL (f);
9188 attrs.colormap = FRAME_X_COLORMAP (f);
9189 attrs.valuemask |= XpmVisual;
9190 attrs.valuemask |= XpmColormap;
9191 #endif
9192 attrs.valuemask |= XpmReturnAllocPixels;
9193 #ifdef XpmAllocCloseColors
9194 attrs.alloc_close_colors = 1;
9195 attrs.valuemask |= XpmAllocCloseColors;
9196 #else
9197 attrs.closeness = 600;
9198 attrs.valuemask |= XpmCloseness;
9199 #endif
9201 /* If image specification contains symbolic color definitions, add
9202 these to `attrs'. */
9203 color_symbols = image_spec_value (img->spec, QCcolor_symbols, NULL);
9204 if (CONSP (color_symbols))
9206 Lisp_Object tail;
9207 XpmColorSymbol *xpm_syms;
9208 int i, size;
9210 attrs.valuemask |= XpmColorSymbols;
9212 /* Count number of symbols. */
9213 attrs.numsymbols = 0;
9214 for (tail = color_symbols; CONSP (tail); tail = XCDR (tail))
9215 ++attrs.numsymbols;
9217 /* Allocate an XpmColorSymbol array. */
9218 size = attrs.numsymbols * sizeof *xpm_syms;
9219 xpm_syms = (XpmColorSymbol *) alloca (size);
9220 bzero (xpm_syms, size);
9221 attrs.colorsymbols = xpm_syms;
9223 /* Fill the color symbol array. */
9224 for (tail = color_symbols, i = 0;
9225 CONSP (tail);
9226 ++i, tail = XCDR (tail))
9228 Lisp_Object name = XCAR (XCAR (tail));
9229 Lisp_Object color = XCDR (XCAR (tail));
9230 xpm_syms[i].name = (char *) alloca (SCHARS (name) + 1);
9231 strcpy (xpm_syms[i].name, SDATA (name));
9232 xpm_syms[i].value = (char *) alloca (SCHARS (color) + 1);
9233 strcpy (xpm_syms[i].value, SDATA (color));
9237 /* Create a pixmap for the image, either from a file, or from a
9238 string buffer containing data in the same format as an XPM file. */
9240 specified_file = image_spec_value (img->spec, QCfile, NULL);
9243 HDC frame_dc = get_frame_dc (f);
9244 hdc = CreateCompatibleDC (frame_dc);
9245 release_frame_dc (f, frame_dc);
9248 if (STRINGP (specified_file))
9250 Lisp_Object file = x_find_image_file (specified_file);
9251 if (!STRINGP (file))
9253 image_error ("Cannot find image file `%s'", specified_file, Qnil);
9254 return 0;
9257 /* XpmReadFileToPixmap is not available in the Windows port of
9258 libxpm. But XpmReadFileToImage almost does what we want. */
9259 rc = fn_XpmReadFileToImage (&hdc, SDATA (file),
9260 &xpm_image, &xpm_mask,
9261 &attrs);
9263 else
9265 Lisp_Object buffer = image_spec_value (img->spec, QCdata, NULL);
9266 /* XpmCreatePixmapFromBuffer is not available in the Windows port
9267 of libxpm. But XpmCreateImageFromBuffer almost does what we want. */
9268 rc = fn_XpmCreateImageFromBuffer (&hdc, SDATA (buffer),
9269 &xpm_image, &xpm_mask,
9270 &attrs);
9273 if (rc == XpmSuccess)
9275 int i;
9277 /* W32 XPM uses XImage to wrap what W32 Emacs calls a Pixmap,
9278 plus some duplicate attributes. */
9279 if (xpm_image && xpm_image->bitmap)
9281 img->pixmap = xpm_image->bitmap;
9282 /* XImageFree in libXpm frees XImage struct without destroying
9283 the bitmap, which is what we want. */
9284 fn_XImageFree (xpm_image);
9286 if (xpm_mask && xpm_mask->bitmap)
9288 /* The mask appears to be inverted compared with what we expect.
9289 TODO: invert our expectations. See other places where we
9290 have to invert bits because our idea of masks is backwards. */
9291 HGDIOBJ old_obj;
9292 old_obj = SelectObject (hdc, xpm_mask->bitmap);
9294 PatBlt (hdc, 0, 0, xpm_mask->width, xpm_mask->height, DSTINVERT);
9295 SelectObject (hdc, old_obj);
9297 img->mask = xpm_mask->bitmap;
9298 fn_XImageFree (xpm_mask);
9299 DeleteDC (hdc);
9302 DeleteDC (hdc);
9304 /* Remember allocated colors. */
9305 img->ncolors = attrs.nalloc_pixels;
9306 img->colors = (unsigned long *) xmalloc (img->ncolors
9307 * sizeof *img->colors);
9308 for (i = 0; i < attrs.nalloc_pixels; ++i)
9309 img->colors[i] = attrs.alloc_pixels[i];
9311 img->width = attrs.width;
9312 img->height = attrs.height;
9313 xassert (img->width > 0 && img->height > 0);
9315 /* The call to XpmFreeAttributes below frees attrs.alloc_pixels. */
9316 fn_XpmFreeAttributes (&attrs);
9318 else
9320 DeleteDC (hdc);
9322 switch (rc)
9324 case XpmOpenFailed:
9325 image_error ("Error opening XPM file (%s)", img->spec, Qnil);
9326 break;
9328 case XpmFileInvalid:
9329 image_error ("Invalid XPM file (%s)", img->spec, Qnil);
9330 break;
9332 case XpmNoMemory:
9333 image_error ("Out of memory (%s)", img->spec, Qnil);
9334 break;
9336 case XpmColorFailed:
9337 image_error ("Color allocation error (%s)", img->spec, Qnil);
9338 break;
9340 default:
9341 image_error ("Unknown error (%s)", img->spec, Qnil);
9342 break;
9346 return rc == XpmSuccess;
9349 #endif /* HAVE_XPM != 0 */
9352 #if 0 /* TODO : Color tables on W32. */
9353 /***********************************************************************
9354 Color table
9355 ***********************************************************************/
9357 /* An entry in the color table mapping an RGB color to a pixel color. */
9359 struct ct_color
9361 int r, g, b;
9362 unsigned long pixel;
9364 /* Next in color table collision list. */
9365 struct ct_color *next;
9368 /* The bucket vector size to use. Must be prime. */
9370 #define CT_SIZE 101
9372 /* Value is a hash of the RGB color given by R, G, and B. */
9374 #define CT_HASH_RGB(R, G, B) (((R) << 16) ^ ((G) << 8) ^ (B))
9376 /* The color hash table. */
9378 struct ct_color **ct_table;
9380 /* Number of entries in the color table. */
9382 int ct_colors_allocated;
9384 /* Function prototypes. */
9386 static void init_color_table P_ ((void));
9387 static void free_color_table P_ ((void));
9388 static unsigned long *colors_in_color_table P_ ((int *n));
9389 static unsigned long lookup_rgb_color P_ ((struct frame *f, int r, int g, int b));
9390 static unsigned long lookup_pixel_color P_ ((struct frame *f, unsigned long p));
9393 /* Initialize the color table. */
9395 static void
9396 init_color_table ()
9398 int size = CT_SIZE * sizeof (*ct_table);
9399 ct_table = (struct ct_color **) xmalloc (size);
9400 bzero (ct_table, size);
9401 ct_colors_allocated = 0;
9405 /* Free memory associated with the color table. */
9407 static void
9408 free_color_table ()
9410 int i;
9411 struct ct_color *p, *next;
9413 for (i = 0; i < CT_SIZE; ++i)
9414 for (p = ct_table[i]; p; p = next)
9416 next = p->next;
9417 xfree (p);
9420 xfree (ct_table);
9421 ct_table = NULL;
9425 /* Value is a pixel color for RGB color R, G, B on frame F. If an
9426 entry for that color already is in the color table, return the
9427 pixel color of that entry. Otherwise, allocate a new color for R,
9428 G, B, and make an entry in the color table. */
9430 static unsigned long
9431 lookup_rgb_color (f, r, g, b)
9432 struct frame *f;
9433 int r, g, b;
9435 unsigned hash = CT_HASH_RGB (r, g, b);
9436 int i = hash % CT_SIZE;
9437 struct ct_color *p;
9439 for (p = ct_table[i]; p; p = p->next)
9440 if (p->r == r && p->g == g && p->b == b)
9441 break;
9443 if (p == NULL)
9445 COLORREF color;
9446 Colormap cmap;
9447 int rc;
9449 color = PALETTERGB (r, g, b);
9451 ++ct_colors_allocated;
9453 p = (struct ct_color *) xmalloc (sizeof *p);
9454 p->r = r;
9455 p->g = g;
9456 p->b = b;
9457 p->pixel = color;
9458 p->next = ct_table[i];
9459 ct_table[i] = p;
9462 return p->pixel;
9466 /* Look up pixel color PIXEL which is used on frame F in the color
9467 table. If not already present, allocate it. Value is PIXEL. */
9469 static unsigned long
9470 lookup_pixel_color (f, pixel)
9471 struct frame *f;
9472 unsigned long pixel;
9474 int i = pixel % CT_SIZE;
9475 struct ct_color *p;
9477 for (p = ct_table[i]; p; p = p->next)
9478 if (p->pixel == pixel)
9479 break;
9481 if (p == NULL)
9483 XColor color;
9484 Colormap cmap;
9485 int rc;
9487 BLOCK_INPUT;
9489 cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f));
9490 color.pixel = pixel;
9491 XQueryColor (NULL, cmap, &color);
9492 rc = x_alloc_nearest_color (f, cmap, &color);
9493 UNBLOCK_INPUT;
9495 if (rc)
9497 ++ct_colors_allocated;
9499 p = (struct ct_color *) xmalloc (sizeof *p);
9500 p->r = color.red;
9501 p->g = color.green;
9502 p->b = color.blue;
9503 p->pixel = pixel;
9504 p->next = ct_table[i];
9505 ct_table[i] = p;
9507 else
9508 return FRAME_FOREGROUND_PIXEL (f);
9510 return p->pixel;
9514 /* Value is a vector of all pixel colors contained in the color table,
9515 allocated via xmalloc. Set *N to the number of colors. */
9517 static unsigned long *
9518 colors_in_color_table (n)
9519 int *n;
9521 int i, j;
9522 struct ct_color *p;
9523 unsigned long *colors;
9525 if (ct_colors_allocated == 0)
9527 *n = 0;
9528 colors = NULL;
9530 else
9532 colors = (unsigned long *) xmalloc (ct_colors_allocated
9533 * sizeof *colors);
9534 *n = ct_colors_allocated;
9536 for (i = j = 0; i < CT_SIZE; ++i)
9537 for (p = ct_table[i]; p; p = p->next)
9538 colors[j++] = p->pixel;
9541 return colors;
9544 #endif /* TODO */
9547 /***********************************************************************
9548 Algorithms
9549 ***********************************************************************/
9550 static XColor *x_to_xcolors P_ ((struct frame *, struct image *, int));
9551 static void x_from_xcolors P_ ((struct frame *, struct image *, XColor *));
9552 static void x_detect_edges P_ ((struct frame *, struct image *, int[9], int));
9553 static void XPutPixel (XImage *, int, int, COLORREF);
9555 /* Non-zero means draw a cross on images having `:conversion
9556 disabled'. */
9558 int cross_disabled_images;
9560 /* Edge detection matrices for different edge-detection
9561 strategies. */
9563 static int emboss_matrix[9] = {
9564 /* x - 1 x x + 1 */
9565 2, -1, 0, /* y - 1 */
9566 -1, 0, 1, /* y */
9567 0, 1, -2 /* y + 1 */
9570 static int laplace_matrix[9] = {
9571 /* x - 1 x x + 1 */
9572 1, 0, 0, /* y - 1 */
9573 0, 0, 0, /* y */
9574 0, 0, -1 /* y + 1 */
9577 /* Value is the intensity of the color whose red/green/blue values
9578 are R, G, and B. */
9580 #define COLOR_INTENSITY(R, G, B) ((2 * (R) + 3 * (G) + (B)) / 6)
9583 /* On frame F, return an array of XColor structures describing image
9584 IMG->pixmap. Each XColor structure has its pixel color set. RGB_P
9585 non-zero means also fill the red/green/blue members of the XColor
9586 structures. Value is a pointer to the array of XColors structures,
9587 allocated with xmalloc; it must be freed by the caller. */
9589 static XColor *
9590 x_to_xcolors (f, img, rgb_p)
9591 struct frame *f;
9592 struct image *img;
9593 int rgb_p;
9595 int x, y;
9596 XColor *colors, *p;
9597 HDC hdc, bmpdc;
9598 HGDIOBJ prev;
9600 colors = (XColor *) xmalloc (img->width * img->height * sizeof *colors);
9602 /* Load the image into a memory device context. */
9603 hdc = get_frame_dc (f);
9604 bmpdc = CreateCompatibleDC (hdc);
9605 release_frame_dc (f, hdc);
9606 prev = SelectObject (bmpdc, img->pixmap);
9608 /* Fill the `pixel' members of the XColor array. I wished there
9609 were an easy and portable way to circumvent XGetPixel. */
9610 p = colors;
9611 for (y = 0; y < img->height; ++y)
9613 XColor *row = p;
9615 for (x = 0; x < img->width; ++x, ++p)
9617 /* TODO: palette support needed here? */
9618 p->pixel = GetPixel (bmpdc, x, y);
9620 if (rgb_p)
9622 p->red = 256 * GetRValue (p->pixel);
9623 p->green = 256 * GetGValue (p->pixel);
9624 p->blue = 256 * GetBValue (p->pixel);
9629 SelectObject (bmpdc, prev);
9630 DeleteDC (bmpdc);
9632 return colors;
9635 /* Put a pixel of COLOR at position X, Y in XIMG. XIMG must have been
9636 created with CreateDIBSection, with the pointer to the bit values
9637 stored in ximg->data. */
9639 static void XPutPixel (ximg, x, y, color)
9640 XImage * ximg;
9641 int x, y;
9642 COLORREF color;
9644 int width = ximg->info.bmiHeader.biWidth;
9645 int height = ximg->info.bmiHeader.biHeight;
9646 unsigned char * pixel;
9648 /* True color images. */
9649 if (ximg->info.bmiHeader.biBitCount == 24)
9651 int rowbytes = width * 3;
9652 /* Ensure scanlines are aligned on 4 byte boundaries. */
9653 if (rowbytes % 4)
9654 rowbytes += 4 - (rowbytes % 4);
9656 pixel = ximg->data + y * rowbytes + x * 3;
9657 /* Windows bitmaps are in BGR order. */
9658 *pixel = GetBValue (color);
9659 *(pixel + 1) = GetGValue (color);
9660 *(pixel + 2) = GetRValue (color);
9662 /* Monochrome images. */
9663 else if (ximg->info.bmiHeader.biBitCount == 1)
9665 int rowbytes = width / 8;
9666 /* Ensure scanlines are aligned on 4 byte boundaries. */
9667 if (rowbytes % 4)
9668 rowbytes += 4 - (rowbytes % 4);
9669 pixel = ximg->data + y * rowbytes + x / 8;
9670 /* Filter out palette info. */
9671 if (color & 0x00ffffff)
9672 *pixel = *pixel | (1 << x % 8);
9673 else
9674 *pixel = *pixel & ~(1 << x % 8);
9676 else
9677 image_error ("XPutPixel: palette image not supported", Qnil, Qnil);
9680 /* Create IMG->pixmap from an array COLORS of XColor structures, whose
9681 RGB members are set. F is the frame on which this all happens.
9682 COLORS will be freed; an existing IMG->pixmap will be freed, too. */
9684 static void
9685 x_from_xcolors (f, img, colors)
9686 struct frame *f;
9687 struct image *img;
9688 XColor *colors;
9690 int x, y;
9691 XImage *oimg;
9692 Pixmap pixmap;
9693 XColor *p;
9694 #if 0 /* TODO: color tables. */
9695 init_color_table ();
9696 #endif
9697 x_create_x_image_and_pixmap (f, img->width, img->height, 0,
9698 &oimg, &pixmap);
9699 p = colors;
9700 for (y = 0; y < img->height; ++y)
9701 for (x = 0; x < img->width; ++x, ++p)
9703 unsigned long pixel;
9704 #if 0 /* TODO: color tables. */
9705 pixel = lookup_rgb_color (f, p->red, p->green, p->blue);
9706 #else
9707 pixel = PALETTERGB (p->red / 256, p->green / 256, p->blue / 256);
9708 #endif
9709 XPutPixel (oimg, x, y, pixel);
9712 xfree (colors);
9713 x_clear_image_1 (f, img, 1, 0, 1);
9715 x_put_x_image (f, oimg, pixmap, img->width, img->height);
9716 x_destroy_x_image (oimg);
9717 img->pixmap = pixmap;
9718 #if 0 /* TODO: color tables. */
9719 img->colors = colors_in_color_table (&img->ncolors);
9720 free_color_table ();
9721 #endif
9725 /* On frame F, perform edge-detection on image IMG.
9727 MATRIX is a nine-element array specifying the transformation
9728 matrix. See emboss_matrix for an example.
9730 COLOR_ADJUST is a color adjustment added to each pixel of the
9731 outgoing image. */
9733 static void
9734 x_detect_edges (f, img, matrix, color_adjust)
9735 struct frame *f;
9736 struct image *img;
9737 int matrix[9], color_adjust;
9739 XColor *colors = x_to_xcolors (f, img, 1);
9740 XColor *new, *p;
9741 int x, y, i, sum;
9743 for (i = sum = 0; i < 9; ++i)
9744 sum += abs (matrix[i]);
9746 #define COLOR(A, X, Y) ((A) + (Y) * img->width + (X))
9748 new = (XColor *) xmalloc (img->width * img->height * sizeof *new);
9750 for (y = 0; y < img->height; ++y)
9752 p = COLOR (new, 0, y);
9753 p->red = p->green = p->blue = 0xffff/2;
9754 p = COLOR (new, img->width - 1, y);
9755 p->red = p->green = p->blue = 0xffff/2;
9758 for (x = 1; x < img->width - 1; ++x)
9760 p = COLOR (new, x, 0);
9761 p->red = p->green = p->blue = 0xffff/2;
9762 p = COLOR (new, x, img->height - 1);
9763 p->red = p->green = p->blue = 0xffff/2;
9766 for (y = 1; y < img->height - 1; ++y)
9768 p = COLOR (new, 1, y);
9770 for (x = 1; x < img->width - 1; ++x, ++p)
9772 int r, g, b, y1, x1;
9774 r = g = b = i = 0;
9775 for (y1 = y - 1; y1 < y + 2; ++y1)
9776 for (x1 = x - 1; x1 < x + 2; ++x1, ++i)
9777 if (matrix[i])
9779 XColor *t = COLOR (colors, x1, y1);
9780 r += matrix[i] * t->red;
9781 g += matrix[i] * t->green;
9782 b += matrix[i] * t->blue;
9785 r = (r / sum + color_adjust) & 0xffff;
9786 g = (g / sum + color_adjust) & 0xffff;
9787 b = (b / sum + color_adjust) & 0xffff;
9788 p->red = p->green = p->blue = COLOR_INTENSITY (r, g, b);
9792 xfree (colors);
9793 x_from_xcolors (f, img, new);
9795 #undef COLOR
9799 /* Perform the pre-defined `emboss' edge-detection on image IMG
9800 on frame F. */
9802 static void
9803 x_emboss (f, img)
9804 struct frame *f;
9805 struct image *img;
9807 x_detect_edges (f, img, emboss_matrix, 0xffff / 2);
9811 /* Transform image IMG which is used on frame F with a Laplace
9812 edge-detection algorithm. The result is an image that can be used
9813 to draw disabled buttons, for example. */
9815 static void
9816 x_laplace (f, img)
9817 struct frame *f;
9818 struct image *img;
9820 x_detect_edges (f, img, laplace_matrix, 45000);
9824 /* Perform edge-detection on image IMG on frame F, with specified
9825 transformation matrix MATRIX and color-adjustment COLOR_ADJUST.
9827 MATRIX must be either
9829 - a list of at least 9 numbers in row-major form
9830 - a vector of at least 9 numbers
9832 COLOR_ADJUST nil means use a default; otherwise it must be a
9833 number. */
9835 static void
9836 x_edge_detection (f, img, matrix, color_adjust)
9837 struct frame *f;
9838 struct image *img;
9839 Lisp_Object matrix, color_adjust;
9841 int i = 0;
9842 int trans[9];
9844 if (CONSP (matrix))
9846 for (i = 0;
9847 i < 9 && CONSP (matrix) && NUMBERP (XCAR (matrix));
9848 ++i, matrix = XCDR (matrix))
9849 trans[i] = XFLOATINT (XCAR (matrix));
9851 else if (VECTORP (matrix) && ASIZE (matrix) >= 9)
9853 for (i = 0; i < 9 && NUMBERP (AREF (matrix, i)); ++i)
9854 trans[i] = XFLOATINT (AREF (matrix, i));
9857 if (NILP (color_adjust))
9858 color_adjust = make_number (0xffff / 2);
9860 if (i == 9 && NUMBERP (color_adjust))
9861 x_detect_edges (f, img, trans, (int) XFLOATINT (color_adjust));
9865 /* Transform image IMG on frame F so that it looks disabled. */
9867 static void
9868 x_disable_image (f, img)
9869 struct frame *f;
9870 struct image *img;
9872 struct w32_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
9874 if (dpyinfo->n_planes * dpyinfo->n_cbits >= 2)
9876 /* Color (or grayscale). Convert to gray, and equalize. Just
9877 drawing such images with a stipple can look very odd, so
9878 we're using this method instead. */
9879 XColor *colors = x_to_xcolors (f, img, 1);
9880 XColor *p, *end;
9881 const int h = 15000;
9882 const int l = 30000;
9884 for (p = colors, end = colors + img->width * img->height;
9885 p < end;
9886 ++p)
9888 int i = COLOR_INTENSITY (p->red, p->green, p->blue);
9889 int i2 = (0xffff - h - l) * i / 0xffff + l;
9890 p->red = p->green = p->blue = i2;
9893 x_from_xcolors (f, img, colors);
9896 /* Draw a cross over the disabled image, if we must or if we
9897 should. */
9898 if (dpyinfo->n_planes * dpyinfo->n_cbits < 2 || cross_disabled_images)
9900 HDC hdc, bmpdc;
9901 HGDIOBJ prev;
9903 hdc = get_frame_dc (f);
9904 bmpdc = CreateCompatibleDC (hdc);
9905 release_frame_dc (f, hdc);
9907 prev = SelectObject (bmpdc, img->pixmap);
9909 SetTextColor (bmpdc, BLACK_PIX_DEFAULT (f));
9910 MoveToEx (bmpdc, 0, 0, NULL);
9911 LineTo (bmpdc, img->width - 1, img->height - 1);
9912 MoveToEx (bmpdc, 0, img->height - 1, NULL);
9913 LineTo (bmpdc, img->width - 1, 0);
9915 if (img->mask)
9917 SelectObject (bmpdc, img->mask);
9918 SetTextColor (bmpdc, WHITE_PIX_DEFAULT (f));
9919 MoveToEx (bmpdc, 0, 0, NULL);
9920 LineTo (bmpdc, img->width - 1, img->height - 1);
9921 MoveToEx (bmpdc, 0, img->height - 1, NULL);
9922 LineTo (bmpdc, img->width - 1, 0);
9924 SelectObject (bmpdc, prev);
9925 DeleteDC (bmpdc);
9930 /* Build a mask for image IMG which is used on frame F. FILE is the
9931 name of an image file, for error messages. HOW determines how to
9932 determine the background color of IMG. If it is a list '(R G B)',
9933 with R, G, and B being integers >= 0, take that as the color of the
9934 background. Otherwise, determine the background color of IMG
9935 heuristically. Value is non-zero if successful. */
9937 static int
9938 x_build_heuristic_mask (f, img, how)
9939 struct frame *f;
9940 struct image *img;
9941 Lisp_Object how;
9943 HDC img_dc, frame_dc;
9944 HGDIOBJ prev;
9945 char *mask_img;
9946 int x, y, rc, use_img_background;
9947 unsigned long bg = 0;
9948 int row_width;
9950 if (img->mask)
9952 DeleteObject (img->mask);
9953 img->mask = NULL;
9954 img->background_transparent_valid = 0;
9957 /* Create the bit array serving as mask. */
9958 row_width = (img->width + 7) / 8;
9959 mask_img = xmalloc (row_width * img->height);
9960 bzero (mask_img, row_width * img->height);
9962 /* Create a memory device context for IMG->pixmap. */
9963 frame_dc = get_frame_dc (f);
9964 img_dc = CreateCompatibleDC (frame_dc);
9965 release_frame_dc (f, frame_dc);
9966 prev = SelectObject (img_dc, img->pixmap);
9968 /* Determine the background color of img_dc. If HOW is `(R G B)'
9969 take that as color. Otherwise, use the image's background color. */
9970 use_img_background = 1;
9972 if (CONSP (how))
9974 int rgb[3], i;
9976 for (i = 0; i < 3 && CONSP (how) && NATNUMP (XCAR (how)); ++i)
9978 rgb[i] = XFASTINT (XCAR (how)) & 0xffff;
9979 how = XCDR (how);
9982 if (i == 3 && NILP (how))
9984 char color_name[30];
9985 sprintf (color_name, "#%04x%04x%04x", rgb[0], rgb[1], rgb[2]);
9986 bg = x_alloc_image_color (f, img, build_string (color_name), 0)
9987 & 0x00ffffff; /* Filter out palette info. */
9988 use_img_background = 0;
9992 if (use_img_background)
9993 bg = four_corners_best (img_dc, img->width, img->height);
9995 /* Set all bits in mask_img to 1 whose color in ximg is different
9996 from the background color bg. */
9997 for (y = 0; y < img->height; ++y)
9998 for (x = 0; x < img->width; ++x)
10000 COLORREF p = GetPixel (img_dc, x, y);
10001 if (p != bg)
10002 mask_img[y * row_width + x / 8] |= 1 << (x % 8);
10005 /* Create the mask image. */
10006 img->mask = w32_create_pixmap_from_bitmap_data (img->width, img->height,
10007 mask_img);
10009 /* Fill in the background_transparent field while we have the mask handy. */
10010 SelectObject (img_dc, img->mask);
10012 image_background_transparent (img, f, img_dc);
10014 /* Put mask_img into img->mask. */
10015 x_destroy_x_image ((XImage *)mask_img);
10016 SelectObject (img_dc, prev);
10017 DeleteDC (img_dc);
10019 return 1;
10023 /***********************************************************************
10024 PBM (mono, gray, color)
10025 ***********************************************************************/
10027 static int pbm_image_p P_ ((Lisp_Object object));
10028 static int pbm_load P_ ((struct frame *f, struct image *img));
10029 static int pbm_scan_number P_ ((unsigned char **, unsigned char *));
10031 /* The symbol `pbm' identifying images of this type. */
10033 Lisp_Object Qpbm;
10035 /* Indices of image specification fields in gs_format, below. */
10037 enum pbm_keyword_index
10039 PBM_TYPE,
10040 PBM_FILE,
10041 PBM_DATA,
10042 PBM_ASCENT,
10043 PBM_MARGIN,
10044 PBM_RELIEF,
10045 PBM_ALGORITHM,
10046 PBM_HEURISTIC_MASK,
10047 PBM_MASK,
10048 PBM_FOREGROUND,
10049 PBM_BACKGROUND,
10050 PBM_LAST
10053 /* Vector of image_keyword structures describing the format
10054 of valid user-defined image specifications. */
10056 static struct image_keyword pbm_format[PBM_LAST] =
10058 {":type", IMAGE_SYMBOL_VALUE, 1},
10059 {":file", IMAGE_STRING_VALUE, 0},
10060 {":data", IMAGE_STRING_VALUE, 0},
10061 {":ascent", IMAGE_ASCENT_VALUE, 0},
10062 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
10063 {":relief", IMAGE_INTEGER_VALUE, 0},
10064 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10065 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10066 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10067 {":foreground", IMAGE_STRING_OR_NIL_VALUE, 0},
10068 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
10071 /* Structure describing the image type `pbm'. */
10073 static struct image_type pbm_type =
10075 &Qpbm,
10076 pbm_image_p,
10077 pbm_load,
10078 x_clear_image,
10079 NULL
10083 /* Return non-zero if OBJECT is a valid PBM image specification. */
10085 static int
10086 pbm_image_p (object)
10087 Lisp_Object object;
10089 struct image_keyword fmt[PBM_LAST];
10091 bcopy (pbm_format, fmt, sizeof fmt);
10093 if (!parse_image_spec (object, fmt, PBM_LAST, Qpbm))
10094 return 0;
10096 /* Must specify either :data or :file. */
10097 return fmt[PBM_DATA].count + fmt[PBM_FILE].count == 1;
10101 /* Scan a decimal number from *S and return it. Advance *S while
10102 reading the number. END is the end of the string. Value is -1 at
10103 end of input. */
10105 static int
10106 pbm_scan_number (s, end)
10107 unsigned char **s, *end;
10109 int c, val = -1;
10111 while (*s < end)
10113 /* Skip white-space. */
10114 while (*s < end && (c = *(*s)++, isspace (c)))
10117 if (c == '#')
10119 /* Skip comment to end of line. */
10120 while (*s < end && (c = *(*s)++, c != '\n'))
10123 else if (isdigit (c))
10125 /* Read decimal number. */
10126 val = c - '0';
10127 while (*s < end && (c = *(*s)++, isdigit (c)))
10128 val = 10 * val + c - '0';
10129 break;
10131 else
10132 break;
10135 return val;
10139 /* Read FILE into memory. Value is a pointer to a buffer allocated
10140 with xmalloc holding FILE's contents. Value is null if an error
10141 occurred. *SIZE is set to the size of the file. */
10143 static char *
10144 pbm_read_file (file, size)
10145 Lisp_Object file;
10146 int *size;
10148 FILE *fp = NULL;
10149 char *buf = NULL;
10150 struct stat st;
10152 if (stat (SDATA (file), &st) == 0
10153 && (fp = fopen (SDATA (file), "rb")) != NULL
10154 && (buf = (char *) xmalloc (st.st_size),
10155 fread (buf, 1, st.st_size, fp) == st.st_size))
10157 *size = st.st_size;
10158 fclose (fp);
10160 else
10162 if (fp)
10163 fclose (fp);
10164 if (buf)
10166 xfree (buf);
10167 buf = NULL;
10171 return buf;
10175 /* Load PBM image IMG for use on frame F. */
10177 static int
10178 pbm_load (f, img)
10179 struct frame *f;
10180 struct image *img;
10182 int raw_p, x, y;
10183 int width, height, max_color_idx = 0;
10184 XImage *ximg;
10185 Lisp_Object file, specified_file;
10186 enum {PBM_MONO, PBM_GRAY, PBM_COLOR} type;
10187 struct gcpro gcpro1;
10188 unsigned char *contents = NULL;
10189 unsigned char *end, *p;
10190 int size;
10192 specified_file = image_spec_value (img->spec, QCfile, NULL);
10193 file = Qnil;
10194 GCPRO1 (file);
10196 if (STRINGP (specified_file))
10198 file = x_find_image_file (specified_file);
10199 if (!STRINGP (file))
10201 image_error ("Cannot find image file `%s'", specified_file, Qnil);
10202 UNGCPRO;
10203 return 0;
10206 contents = slurp_file (SDATA (file), &size);
10207 if (contents == NULL)
10209 image_error ("Error reading `%s'", file, Qnil);
10210 UNGCPRO;
10211 return 0;
10214 p = contents;
10215 end = contents + size;
10217 else
10219 Lisp_Object data;
10220 data = image_spec_value (img->spec, QCdata, NULL);
10221 p = SDATA (data);
10222 end = p + SBYTES (data);
10225 /* Check magic number. */
10226 if (end - p < 2 || *p++ != 'P')
10228 image_error ("Not a PBM image: `%s'", img->spec, Qnil);
10229 error:
10230 xfree (contents);
10231 UNGCPRO;
10232 return 0;
10235 switch (*p++)
10237 case '1':
10238 raw_p = 0, type = PBM_MONO;
10239 break;
10241 case '2':
10242 raw_p = 0, type = PBM_GRAY;
10243 break;
10245 case '3':
10246 raw_p = 0, type = PBM_COLOR;
10247 break;
10249 case '4':
10250 raw_p = 1, type = PBM_MONO;
10251 break;
10253 case '5':
10254 raw_p = 1, type = PBM_GRAY;
10255 break;
10257 case '6':
10258 raw_p = 1, type = PBM_COLOR;
10259 break;
10261 default:
10262 image_error ("Not a PBM image: `%s'", img->spec, Qnil);
10263 goto error;
10266 /* Read width, height, maximum color-component. Characters
10267 starting with `#' up to the end of a line are ignored. */
10268 width = pbm_scan_number (&p, end);
10269 height = pbm_scan_number (&p, end);
10271 if (type != PBM_MONO)
10273 max_color_idx = pbm_scan_number (&p, end);
10274 if (raw_p && max_color_idx > 255)
10275 max_color_idx = 255;
10278 if (width < 0
10279 || height < 0
10280 || (type != PBM_MONO && max_color_idx < 0))
10281 goto error;
10283 if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
10284 goto error;
10286 #if 0 /* TODO: color tables. */
10287 /* Initialize the color hash table. */
10288 init_color_table ();
10289 #endif
10291 if (type == PBM_MONO)
10293 int c = 0, g;
10294 struct image_keyword fmt[PBM_LAST];
10295 unsigned long fg = FRAME_FOREGROUND_PIXEL (f);
10296 unsigned long bg = FRAME_BACKGROUND_PIXEL (f);
10298 /* Parse the image specification. */
10299 bcopy (pbm_format, fmt, sizeof fmt);
10300 parse_image_spec (img->spec, fmt, PBM_LAST, Qpbm);
10302 /* Get foreground and background colors, maybe allocate colors. */
10303 if (fmt[PBM_FOREGROUND].count
10304 && STRINGP (fmt[PBM_FOREGROUND].value))
10305 fg = x_alloc_image_color (f, img, fmt[PBM_FOREGROUND].value, fg);
10306 if (fmt[PBM_BACKGROUND].count
10307 && STRINGP (fmt[PBM_BACKGROUND].value))
10309 bg = x_alloc_image_color (f, img, fmt[PBM_BACKGROUND].value, bg);
10310 img->background = bg;
10311 img->background_valid = 1;
10314 for (y = 0; y < height; ++y)
10315 for (x = 0; x < width; ++x)
10317 if (raw_p)
10319 if ((x & 7) == 0)
10320 c = *p++;
10321 g = c & 0x80;
10322 c <<= 1;
10324 else
10325 g = pbm_scan_number (&p, end);
10327 XPutPixel (ximg, x, y, g ? fg : bg);
10330 else
10332 for (y = 0; y < height; ++y)
10333 for (x = 0; x < width; ++x)
10335 int r, g, b;
10337 if (type == PBM_GRAY)
10338 r = g = b = raw_p ? *p++ : pbm_scan_number (&p, end);
10339 else if (raw_p)
10341 r = *p++;
10342 g = *p++;
10343 b = *p++;
10345 else
10347 r = pbm_scan_number (&p, end);
10348 g = pbm_scan_number (&p, end);
10349 b = pbm_scan_number (&p, end);
10352 if (r < 0 || g < 0 || b < 0)
10354 x_destroy_x_image (ximg);
10355 image_error ("Invalid pixel value in image `%s'",
10356 img->spec, Qnil);
10357 goto error;
10360 /* RGB values are now in the range 0..max_color_idx.
10361 Scale this to the range 0..0xff supported by W32. */
10362 r = (int) ((double) r * 255 / max_color_idx);
10363 g = (int) ((double) g * 255 / max_color_idx);
10364 b = (int) ((double) b * 255 / max_color_idx);
10365 XPutPixel (ximg, x, y,
10366 #if 0 /* TODO: color tables. */
10367 lookup_rgb_color (f, r, g, b));
10368 #else
10369 PALETTERGB (r, g, b));
10370 #endif
10374 #if 0 /* TODO: color tables. */
10375 /* Store in IMG->colors the colors allocated for the image, and
10376 free the color table. */
10377 img->colors = colors_in_color_table (&img->ncolors);
10378 free_color_table ();
10379 #endif
10380 /* Maybe fill in the background field while we have ximg handy. */
10381 if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
10382 IMAGE_BACKGROUND (img, f, ximg);
10384 /* Put the image into a pixmap. */
10385 x_put_x_image (f, ximg, img->pixmap, width, height);
10386 x_destroy_x_image (ximg);
10388 img->width = width;
10389 img->height = height;
10391 UNGCPRO;
10392 xfree (contents);
10393 return 1;
10397 /***********************************************************************
10399 ***********************************************************************/
10401 #if HAVE_PNG
10403 #include <png.h>
10405 /* Function prototypes. */
10407 static int png_image_p P_ ((Lisp_Object object));
10408 static int png_load P_ ((struct frame *f, struct image *img));
10410 /* The symbol `png' identifying images of this type. */
10412 Lisp_Object Qpng;
10414 /* Indices of image specification fields in png_format, below. */
10416 enum png_keyword_index
10418 PNG_TYPE,
10419 PNG_DATA,
10420 PNG_FILE,
10421 PNG_ASCENT,
10422 PNG_MARGIN,
10423 PNG_RELIEF,
10424 PNG_ALGORITHM,
10425 PNG_HEURISTIC_MASK,
10426 PNG_MASK,
10427 PNG_BACKGROUND,
10428 PNG_LAST
10431 /* Vector of image_keyword structures describing the format
10432 of valid user-defined image specifications. */
10434 static struct image_keyword png_format[PNG_LAST] =
10436 {":type", IMAGE_SYMBOL_VALUE, 1},
10437 {":data", IMAGE_STRING_VALUE, 0},
10438 {":file", IMAGE_STRING_VALUE, 0},
10439 {":ascent", IMAGE_ASCENT_VALUE, 0},
10440 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
10441 {":relief", IMAGE_INTEGER_VALUE, 0},
10442 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10443 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10444 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
10445 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
10448 /* Structure describing the image type `png'. */
10450 static struct image_type png_type =
10452 &Qpng,
10453 png_image_p,
10454 png_load,
10455 x_clear_image,
10456 NULL
10459 /* PNG library details. */
10461 DEF_IMGLIB_FN (png_get_io_ptr);
10462 DEF_IMGLIB_FN (png_check_sig);
10463 DEF_IMGLIB_FN (png_create_read_struct);
10464 DEF_IMGLIB_FN (png_create_info_struct);
10465 DEF_IMGLIB_FN (png_destroy_read_struct);
10466 DEF_IMGLIB_FN (png_set_read_fn);
10467 DEF_IMGLIB_FN (png_init_io);
10468 DEF_IMGLIB_FN (png_set_sig_bytes);
10469 DEF_IMGLIB_FN (png_read_info);
10470 DEF_IMGLIB_FN (png_get_IHDR);
10471 DEF_IMGLIB_FN (png_get_valid);
10472 DEF_IMGLIB_FN (png_set_strip_16);
10473 DEF_IMGLIB_FN (png_set_expand);
10474 DEF_IMGLIB_FN (png_set_gray_to_rgb);
10475 DEF_IMGLIB_FN (png_set_background);
10476 DEF_IMGLIB_FN (png_get_bKGD);
10477 DEF_IMGLIB_FN (png_read_update_info);
10478 DEF_IMGLIB_FN (png_get_channels);
10479 DEF_IMGLIB_FN (png_get_rowbytes);
10480 DEF_IMGLIB_FN (png_read_image);
10481 DEF_IMGLIB_FN (png_read_end);
10482 DEF_IMGLIB_FN (png_error);
10484 static int
10485 init_png_functions (library)
10486 HMODULE library;
10488 LOAD_IMGLIB_FN (library, png_get_io_ptr);
10489 LOAD_IMGLIB_FN (library, png_check_sig);
10490 LOAD_IMGLIB_FN (library, png_create_read_struct);
10491 LOAD_IMGLIB_FN (library, png_create_info_struct);
10492 LOAD_IMGLIB_FN (library, png_destroy_read_struct);
10493 LOAD_IMGLIB_FN (library, png_set_read_fn);
10494 LOAD_IMGLIB_FN (library, png_init_io);
10495 LOAD_IMGLIB_FN (library, png_set_sig_bytes);
10496 LOAD_IMGLIB_FN (library, png_read_info);
10497 LOAD_IMGLIB_FN (library, png_get_IHDR);
10498 LOAD_IMGLIB_FN (library, png_get_valid);
10499 LOAD_IMGLIB_FN (library, png_set_strip_16);
10500 LOAD_IMGLIB_FN (library, png_set_expand);
10501 LOAD_IMGLIB_FN (library, png_set_gray_to_rgb);
10502 LOAD_IMGLIB_FN (library, png_set_background);
10503 LOAD_IMGLIB_FN (library, png_get_bKGD);
10504 LOAD_IMGLIB_FN (library, png_read_update_info);
10505 LOAD_IMGLIB_FN (library, png_get_channels);
10506 LOAD_IMGLIB_FN (library, png_get_rowbytes);
10507 LOAD_IMGLIB_FN (library, png_read_image);
10508 LOAD_IMGLIB_FN (library, png_read_end);
10509 LOAD_IMGLIB_FN (library, png_error);
10510 return 1;
10513 /* Return non-zero if OBJECT is a valid PNG image specification. */
10515 static int
10516 png_image_p (object)
10517 Lisp_Object object;
10519 struct image_keyword fmt[PNG_LAST];
10520 bcopy (png_format, fmt, sizeof fmt);
10522 if (!parse_image_spec (object, fmt, PNG_LAST, Qpng))
10523 return 0;
10525 /* Must specify either the :data or :file keyword. */
10526 return fmt[PNG_FILE].count + fmt[PNG_DATA].count == 1;
10530 /* Error and warning handlers installed when the PNG library
10531 is initialized. */
10533 static void
10534 my_png_error (png_ptr, msg)
10535 png_struct *png_ptr;
10536 char *msg;
10538 xassert (png_ptr != NULL);
10539 image_error ("PNG error: %s", build_string (msg), Qnil);
10540 longjmp (png_ptr->jmpbuf, 1);
10544 static void
10545 my_png_warning (png_ptr, msg)
10546 png_struct *png_ptr;
10547 char *msg;
10549 xassert (png_ptr != NULL);
10550 image_error ("PNG warning: %s", build_string (msg), Qnil);
10553 /* Memory source for PNG decoding. */
10555 struct png_memory_storage
10557 unsigned char *bytes; /* The data */
10558 size_t len; /* How big is it? */
10559 int index; /* Where are we? */
10563 /* Function set as reader function when reading PNG image from memory.
10564 PNG_PTR is a pointer to the PNG control structure. Copy LENGTH
10565 bytes from the input to DATA. */
10567 static void
10568 png_read_from_memory (png_ptr, data, length)
10569 png_structp png_ptr;
10570 png_bytep data;
10571 png_size_t length;
10573 struct png_memory_storage *tbr
10574 = (struct png_memory_storage *) fn_png_get_io_ptr (png_ptr);
10576 if (length > tbr->len - tbr->index)
10577 fn_png_error (png_ptr, "Read error");
10579 bcopy (tbr->bytes + tbr->index, data, length);
10580 tbr->index = tbr->index + length;
10583 /* Load PNG image IMG for use on frame F. Value is non-zero if
10584 successful. */
10586 static int
10587 png_load (f, img)
10588 struct frame *f;
10589 struct image *img;
10591 Lisp_Object file, specified_file;
10592 Lisp_Object specified_data;
10593 int x, y, i;
10594 XImage *ximg, *mask_img = NULL;
10595 struct gcpro gcpro1;
10596 png_struct *png_ptr = NULL;
10597 png_info *info_ptr = NULL, *end_info = NULL;
10598 FILE *volatile fp = NULL;
10599 png_byte sig[8];
10600 png_byte * volatile pixels = NULL;
10601 png_byte ** volatile rows = NULL;
10602 png_uint_32 width, height;
10603 int bit_depth, color_type, interlace_type;
10604 png_byte channels;
10605 png_uint_32 row_bytes;
10606 int transparent_p;
10607 double screen_gamma, image_gamma;
10608 int intent;
10609 struct png_memory_storage tbr; /* Data to be read */
10611 /* Find out what file to load. */
10612 specified_file = image_spec_value (img->spec, QCfile, NULL);
10613 specified_data = image_spec_value (img->spec, QCdata, NULL);
10614 file = Qnil;
10615 GCPRO1 (file);
10617 if (NILP (specified_data))
10619 file = x_find_image_file (specified_file);
10620 if (!STRINGP (file))
10622 image_error ("Cannot find image file `%s'", specified_file, Qnil);
10623 UNGCPRO;
10624 return 0;
10627 /* Open the image file. */
10628 fp = fopen (SDATA (file), "rb");
10629 if (!fp)
10631 image_error ("Cannot open image file `%s'", file, Qnil);
10632 UNGCPRO;
10633 fclose (fp);
10634 return 0;
10637 /* Check PNG signature. */
10638 if (fread (sig, 1, sizeof sig, fp) != sizeof sig
10639 || !fn_png_check_sig (sig, sizeof sig))
10641 image_error ("Not a PNG file: `%s'", file, Qnil);
10642 UNGCPRO;
10643 fclose (fp);
10644 return 0;
10647 else
10649 /* Read from memory. */
10650 tbr.bytes = SDATA (specified_data);
10651 tbr.len = SBYTES (specified_data);
10652 tbr.index = 0;
10654 /* Check PNG signature. */
10655 if (tbr.len < sizeof sig
10656 || !fn_png_check_sig (tbr.bytes, sizeof sig))
10658 image_error ("Not a PNG image: `%s'", img->spec, Qnil);
10659 UNGCPRO;
10660 return 0;
10663 /* Need to skip past the signature. */
10664 tbr.bytes += sizeof (sig);
10667 /* Initialize read and info structs for PNG lib. */
10668 png_ptr = fn_png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL,
10669 my_png_error, my_png_warning);
10670 if (!png_ptr)
10672 if (fp) fclose (fp);
10673 UNGCPRO;
10674 return 0;
10677 info_ptr = fn_png_create_info_struct (png_ptr);
10678 if (!info_ptr)
10680 fn_png_destroy_read_struct (&png_ptr, NULL, NULL);
10681 if (fp) fclose (fp);
10682 UNGCPRO;
10683 return 0;
10686 end_info = fn_png_create_info_struct (png_ptr);
10687 if (!end_info)
10689 fn_png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
10690 if (fp) fclose (fp);
10691 UNGCPRO;
10692 return 0;
10695 /* Set error jump-back. We come back here when the PNG library
10696 detects an error. */
10697 if (setjmp (png_ptr->jmpbuf))
10699 error:
10700 if (png_ptr)
10701 fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
10702 xfree (pixels);
10703 xfree (rows);
10704 if (fp) fclose (fp);
10705 UNGCPRO;
10706 return 0;
10709 /* Read image info. */
10710 if (!NILP (specified_data))
10711 fn_png_set_read_fn (png_ptr, (void *) &tbr, png_read_from_memory);
10712 else
10713 fn_png_init_io (png_ptr, fp);
10715 fn_png_set_sig_bytes (png_ptr, sizeof sig);
10716 fn_png_read_info (png_ptr, info_ptr);
10717 fn_png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
10718 &interlace_type, NULL, NULL);
10720 /* If image contains simply transparency data, we prefer to
10721 construct a clipping mask. */
10722 if (fn_png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
10723 transparent_p = 1;
10724 else
10725 transparent_p = 0;
10727 /* This function is easier to write if we only have to handle
10728 one data format: RGB or RGBA with 8 bits per channel. Let's
10729 transform other formats into that format. */
10731 /* Strip more than 8 bits per channel. */
10732 if (bit_depth == 16)
10733 fn_png_set_strip_16 (png_ptr);
10735 /* Expand data to 24 bit RGB, or 8 bit grayscale, with alpha channel
10736 if available. */
10737 fn_png_set_expand (png_ptr);
10739 /* Convert grayscale images to RGB. */
10740 if (color_type == PNG_COLOR_TYPE_GRAY
10741 || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
10742 fn_png_set_gray_to_rgb (png_ptr);
10744 screen_gamma = (f->gamma ? 1 / f->gamma / 0.45455 : 2.2);
10746 #if 0 /* Avoid double gamma correction for PNG images. */
10747 /* Tell the PNG lib to handle gamma correction for us. */
10748 #if defined(PNG_READ_sRGB_SUPPORTED) || defined(PNG_WRITE_sRGB_SUPPORTED)
10749 if (png_get_sRGB (png_ptr, info_ptr, &intent))
10750 /* The libpng documentation says this is right in this case. */
10751 png_set_gamma (png_ptr, screen_gamma, 0.45455);
10752 else
10753 #endif
10754 if (png_get_gAMA (png_ptr, info_ptr, &image_gamma))
10755 /* Image contains gamma information. */
10756 png_set_gamma (png_ptr, screen_gamma, image_gamma);
10757 else
10758 /* Use the standard default for the image gamma. */
10759 png_set_gamma (png_ptr, screen_gamma, 0.45455);
10760 #endif /* if 0 */
10762 /* Handle alpha channel by combining the image with a background
10763 color. Do this only if a real alpha channel is supplied. For
10764 simple transparency, we prefer a clipping mask. */
10765 if (!transparent_p)
10767 png_color_16 *image_bg;
10768 Lisp_Object specified_bg
10769 = image_spec_value (img->spec, QCbackground, NULL);
10771 if (STRINGP (specified_bg))
10772 /* The user specified `:background', use that. */
10774 COLORREF color;
10775 if (w32_defined_color (f, SDATA (specified_bg), &color, 0))
10777 png_color_16 user_bg;
10779 bzero (&user_bg, sizeof user_bg);
10780 user_bg.red = 256 * GetRValue (color);
10781 user_bg.green = 256 * GetGValue (color);
10782 user_bg.blue = 256 * GetBValue (color);
10784 fn_png_set_background (png_ptr, &user_bg,
10785 PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
10788 else if (fn_png_get_bKGD (png_ptr, info_ptr, &image_bg))
10789 /* Image contains a background color with which to
10790 combine the image. */
10791 fn_png_set_background (png_ptr, image_bg,
10792 PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
10793 else
10795 /* Image does not contain a background color with which
10796 to combine the image data via an alpha channel. Use
10797 the frame's background instead. */
10798 COLORREF color;
10799 png_color_16 frame_background;
10800 color = FRAME_BACKGROUND_PIXEL (f);
10801 #if 0 /* TODO : Colormap support. */
10802 Colormap cmap;
10804 cmap = FRAME_X_COLORMAP (f);
10805 x_query_color (f, &color);
10806 #endif
10808 bzero (&frame_background, sizeof frame_background);
10809 frame_background.red = 256 * GetRValue (color);
10810 frame_background.green = 256 * GetGValue (color);
10811 frame_background.blue = 256 * GetBValue (color);
10813 fn_png_set_background (png_ptr, &frame_background,
10814 PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
10818 /* Update info structure. */
10819 fn_png_read_update_info (png_ptr, info_ptr);
10821 /* Get number of channels. Valid values are 1 for grayscale images
10822 and images with a palette, 2 for grayscale images with transparency
10823 information (alpha channel), 3 for RGB images, and 4 for RGB
10824 images with alpha channel, i.e. RGBA. If conversions above were
10825 sufficient we should only have 3 or 4 channels here. */
10826 channels = fn_png_get_channels (png_ptr, info_ptr);
10827 xassert (channels == 3 || channels == 4);
10829 /* Number of bytes needed for one row of the image. */
10830 row_bytes = fn_png_get_rowbytes (png_ptr, info_ptr);
10832 /* Allocate memory for the image. */
10833 pixels = (png_byte *) xmalloc (row_bytes * height * sizeof *pixels);
10834 rows = (png_byte **) xmalloc (height * sizeof *rows);
10835 for (i = 0; i < height; ++i)
10836 rows[i] = pixels + i * row_bytes;
10838 /* Read the entire image. */
10839 fn_png_read_image (png_ptr, rows);
10840 fn_png_read_end (png_ptr, info_ptr);
10841 if (fp)
10843 fclose (fp);
10844 fp = NULL;
10847 /* Create the X image and pixmap. */
10848 if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg,
10849 &img->pixmap))
10850 goto error;
10852 /* Create an image and pixmap serving as mask if the PNG image
10853 contains an alpha channel. */
10854 if (channels == 4
10855 && !transparent_p
10856 && !x_create_x_image_and_pixmap (f, width, height, 1,
10857 &mask_img, &img->mask))
10859 x_destroy_x_image (ximg);
10860 DeleteObject (img->pixmap);
10861 img->pixmap = 0;
10862 goto error;
10864 /* Fill the X image and mask from PNG data. */
10865 #if 0 /* TODO: Color tables. */
10866 init_color_table ();
10867 #endif
10869 for (y = 0; y < height; ++y)
10871 png_byte *p = rows[y];
10873 for (x = 0; x < width; ++x)
10875 unsigned r, g, b;
10877 r = *p++;
10878 g = *p++;
10879 b = *p++;
10880 #if 0 /* TODO: Color tables. */
10881 XPutPixel (ximg, x, y, lookup_rgb_color (f, r, g, b));
10882 #else
10883 XPutPixel (ximg, x, y, PALETTERGB (r, g, b));
10884 #endif
10885 /* An alpha channel, aka mask channel, associates variable
10886 transparency with an image. Where other image formats
10887 support binary transparency---fully transparent or fully
10888 opaque---PNG allows up to 254 levels of partial transparency.
10889 The PNG library implements partial transparency by combining
10890 the image with a specified background color.
10892 I'm not sure how to handle this here nicely: because the
10893 background on which the image is displayed may change, for
10894 real alpha channel support, it would be necessary to create
10895 a new image for each possible background.
10897 What I'm doing now is that a mask is created if we have
10898 boolean transparency information. Otherwise I'm using
10899 the frame's background color to combine the image with. */
10901 if (channels == 4)
10903 if (mask_img)
10904 XPutPixel (mask_img, x, y, *p > 0);
10905 ++p;
10910 if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
10911 /* Set IMG's background color from the PNG image, unless the user
10912 overrode it. */
10914 png_color_16 *bg;
10915 if (fn_png_get_bKGD (png_ptr, info_ptr, &bg))
10917 #if 0 /* TODO: Color tables. */
10918 img->background = lookup_rgb_color (f, bg->red, bg->green, bg->blue);
10919 #else
10920 img->background = PALETTERGB (bg->red / 256, bg->green / 256,
10921 bg->blue / 256);
10922 #endif
10923 img->background_valid = 1;
10927 #if 0 /* TODO: Color tables. */
10928 /* Remember colors allocated for this image. */
10929 img->colors = colors_in_color_table (&img->ncolors);
10930 free_color_table ();
10931 #endif
10933 /* Clean up. */
10934 fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
10935 xfree (rows);
10936 xfree (pixels);
10938 img->width = width;
10939 img->height = height;
10941 /* Maybe fill in the background field while we have ximg handy. */
10942 IMAGE_BACKGROUND (img, f, ximg);
10944 /* Put the image into the pixmap, then free the X image and its buffer. */
10945 x_put_x_image (f, ximg, img->pixmap, width, height);
10946 x_destroy_x_image (ximg);
10948 /* Same for the mask. */
10949 if (mask_img)
10951 /* Fill in the background_transparent field while we have the mask
10952 handy. */
10953 image_background_transparent (img, f, mask_img);
10955 x_put_x_image (f, mask_img, img->mask, img->width, img->height);
10956 x_destroy_x_image (mask_img);
10959 UNGCPRO;
10960 return 1;
10963 #endif /* HAVE_PNG != 0 */
10967 /***********************************************************************
10968 JPEG
10969 ***********************************************************************/
10971 #if HAVE_JPEG
10973 /* Work around a warning about HAVE_STDLIB_H being redefined in
10974 jconfig.h. */
10975 #ifdef HAVE_STDLIB_H
10976 #define HAVE_STDLIB_H_1
10977 #undef HAVE_STDLIB_H
10978 #endif /* HAVE_STLIB_H */
10980 #include <jpeglib.h>
10981 #include <jerror.h>
10982 #include <setjmp.h>
10984 #ifdef HAVE_STLIB_H_1
10985 #define HAVE_STDLIB_H 1
10986 #endif
10988 static int jpeg_image_p P_ ((Lisp_Object object));
10989 static int jpeg_load P_ ((struct frame *f, struct image *img));
10991 /* The symbol `jpeg' identifying images of this type. */
10993 Lisp_Object Qjpeg;
10995 /* Indices of image specification fields in gs_format, below. */
10997 enum jpeg_keyword_index
10999 JPEG_TYPE,
11000 JPEG_DATA,
11001 JPEG_FILE,
11002 JPEG_ASCENT,
11003 JPEG_MARGIN,
11004 JPEG_RELIEF,
11005 JPEG_ALGORITHM,
11006 JPEG_HEURISTIC_MASK,
11007 JPEG_MASK,
11008 JPEG_BACKGROUND,
11009 JPEG_LAST
11012 /* Vector of image_keyword structures describing the format
11013 of valid user-defined image specifications. */
11015 static struct image_keyword jpeg_format[JPEG_LAST] =
11017 {":type", IMAGE_SYMBOL_VALUE, 1},
11018 {":data", IMAGE_STRING_VALUE, 0},
11019 {":file", IMAGE_STRING_VALUE, 0},
11020 {":ascent", IMAGE_ASCENT_VALUE, 0},
11021 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
11022 {":relief", IMAGE_INTEGER_VALUE, 0},
11023 {":conversions", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11024 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11025 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11026 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
11029 /* Structure describing the image type `jpeg'. */
11031 static struct image_type jpeg_type =
11033 &Qjpeg,
11034 jpeg_image_p,
11035 jpeg_load,
11036 x_clear_image,
11037 NULL
11041 /* JPEG library details. */
11042 DEF_IMGLIB_FN (jpeg_CreateDecompress);
11043 DEF_IMGLIB_FN (jpeg_start_decompress);
11044 DEF_IMGLIB_FN (jpeg_finish_decompress);
11045 DEF_IMGLIB_FN (jpeg_destroy_decompress);
11046 DEF_IMGLIB_FN (jpeg_read_header);
11047 DEF_IMGLIB_FN (jpeg_read_scanlines);
11048 DEF_IMGLIB_FN (jpeg_stdio_src);
11049 DEF_IMGLIB_FN (jpeg_std_error);
11050 DEF_IMGLIB_FN (jpeg_resync_to_restart);
11052 static int
11053 init_jpeg_functions (library)
11054 HMODULE library;
11056 LOAD_IMGLIB_FN (library, jpeg_finish_decompress);
11057 LOAD_IMGLIB_FN (library, jpeg_read_scanlines);
11058 LOAD_IMGLIB_FN (library, jpeg_start_decompress);
11059 LOAD_IMGLIB_FN (library, jpeg_read_header);
11060 LOAD_IMGLIB_FN (library, jpeg_stdio_src);
11061 LOAD_IMGLIB_FN (library, jpeg_CreateDecompress);
11062 LOAD_IMGLIB_FN (library, jpeg_destroy_decompress);
11063 LOAD_IMGLIB_FN (library, jpeg_std_error);
11064 LOAD_IMGLIB_FN (library, jpeg_resync_to_restart);
11065 return 1;
11068 /* Wrapper since we can't directly assign the function pointer
11069 to another function pointer that was declared more completely easily. */
11070 static boolean
11071 jpeg_resync_to_restart_wrapper(cinfo, desired)
11072 j_decompress_ptr cinfo;
11073 int desired;
11075 return fn_jpeg_resync_to_restart (cinfo, desired);
11079 /* Return non-zero if OBJECT is a valid JPEG image specification. */
11081 static int
11082 jpeg_image_p (object)
11083 Lisp_Object object;
11085 struct image_keyword fmt[JPEG_LAST];
11087 bcopy (jpeg_format, fmt, sizeof fmt);
11089 if (!parse_image_spec (object, fmt, JPEG_LAST, Qjpeg))
11090 return 0;
11092 /* Must specify either the :data or :file keyword. */
11093 return fmt[JPEG_FILE].count + fmt[JPEG_DATA].count == 1;
11097 struct my_jpeg_error_mgr
11099 struct jpeg_error_mgr pub;
11100 jmp_buf setjmp_buffer;
11104 static void
11105 my_error_exit (cinfo)
11106 j_common_ptr cinfo;
11108 struct my_jpeg_error_mgr *mgr = (struct my_jpeg_error_mgr *) cinfo->err;
11109 longjmp (mgr->setjmp_buffer, 1);
11113 /* Init source method for JPEG data source manager. Called by
11114 jpeg_read_header() before any data is actually read. See
11115 libjpeg.doc from the JPEG lib distribution. */
11117 static void
11118 our_init_source (cinfo)
11119 j_decompress_ptr cinfo;
11124 /* Fill input buffer method for JPEG data source manager. Called
11125 whenever more data is needed. We read the whole image in one step,
11126 so this only adds a fake end of input marker at the end. */
11128 static boolean
11129 our_fill_input_buffer (cinfo)
11130 j_decompress_ptr cinfo;
11132 /* Insert a fake EOI marker. */
11133 struct jpeg_source_mgr *src = cinfo->src;
11134 static JOCTET buffer[2];
11136 buffer[0] = (JOCTET) 0xFF;
11137 buffer[1] = (JOCTET) JPEG_EOI;
11139 src->next_input_byte = buffer;
11140 src->bytes_in_buffer = 2;
11141 return TRUE;
11145 /* Method to skip over NUM_BYTES bytes in the image data. CINFO->src
11146 is the JPEG data source manager. */
11148 static void
11149 our_skip_input_data (cinfo, num_bytes)
11150 j_decompress_ptr cinfo;
11151 long num_bytes;
11153 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *) cinfo->src;
11155 if (src)
11157 if (num_bytes > src->bytes_in_buffer)
11158 ERREXIT (cinfo, JERR_INPUT_EOF);
11160 src->bytes_in_buffer -= num_bytes;
11161 src->next_input_byte += num_bytes;
11166 /* Method to terminate data source. Called by
11167 jpeg_finish_decompress() after all data has been processed. */
11169 static void
11170 our_term_source (cinfo)
11171 j_decompress_ptr cinfo;
11176 /* Set up the JPEG lib for reading an image from DATA which contains
11177 LEN bytes. CINFO is the decompression info structure created for
11178 reading the image. */
11180 static void
11181 jpeg_memory_src (cinfo, data, len)
11182 j_decompress_ptr cinfo;
11183 JOCTET *data;
11184 unsigned int len;
11186 struct jpeg_source_mgr *src;
11188 if (cinfo->src == NULL)
11190 /* First time for this JPEG object? */
11191 cinfo->src = (struct jpeg_source_mgr *)
11192 (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
11193 sizeof (struct jpeg_source_mgr));
11194 src = (struct jpeg_source_mgr *) cinfo->src;
11195 src->next_input_byte = data;
11198 src = (struct jpeg_source_mgr *) cinfo->src;
11199 src->init_source = our_init_source;
11200 src->fill_input_buffer = our_fill_input_buffer;
11201 src->skip_input_data = our_skip_input_data;
11202 src->resync_to_restart = jpeg_resync_to_restart_wrapper; /* Use default method. */
11203 src->term_source = our_term_source;
11204 src->bytes_in_buffer = len;
11205 src->next_input_byte = data;
11209 /* Load image IMG for use on frame F. Patterned after example.c
11210 from the JPEG lib. */
11212 static int
11213 jpeg_load (f, img)
11214 struct frame *f;
11215 struct image *img;
11217 struct jpeg_decompress_struct cinfo;
11218 struct my_jpeg_error_mgr mgr;
11219 Lisp_Object file, specified_file;
11220 Lisp_Object specified_data;
11221 FILE * volatile fp = NULL;
11222 JSAMPARRAY buffer;
11223 int row_stride, x, y;
11224 XImage *ximg = NULL;
11225 int rc;
11226 unsigned long *colors;
11227 int width, height;
11228 struct gcpro gcpro1;
11230 /* Open the JPEG file. */
11231 specified_file = image_spec_value (img->spec, QCfile, NULL);
11232 specified_data = image_spec_value (img->spec, QCdata, NULL);
11233 file = Qnil;
11234 GCPRO1 (file);
11236 if (NILP (specified_data))
11238 file = x_find_image_file (specified_file);
11239 if (!STRINGP (file))
11241 image_error ("Cannot find image file `%s'", specified_file, Qnil);
11242 UNGCPRO;
11243 return 0;
11246 fp = fopen (SDATA (file), "rb");
11247 if (fp == NULL)
11249 image_error ("Cannot open `%s'", file, Qnil);
11250 UNGCPRO;
11251 return 0;
11255 /* Customize libjpeg's error handling to call my_error_exit when an
11256 error is detected. This function will perform a longjmp. */
11257 cinfo.err = fn_jpeg_std_error (&mgr.pub);
11258 mgr.pub.error_exit = my_error_exit;
11260 if ((rc = setjmp (mgr.setjmp_buffer)) != 0)
11262 if (rc == 1)
11264 /* Called from my_error_exit. Display a JPEG error. */
11265 char buffer[JMSG_LENGTH_MAX];
11266 cinfo.err->format_message ((j_common_ptr) &cinfo, buffer);
11267 image_error ("Error reading JPEG image `%s': %s", img->spec,
11268 build_string (buffer));
11271 /* Close the input file and destroy the JPEG object. */
11272 if (fp)
11273 fclose ((FILE *) fp);
11274 fn_jpeg_destroy_decompress (&cinfo);
11276 /* If we already have an XImage, free that. */
11277 x_destroy_x_image (ximg);
11279 /* Free pixmap and colors. */
11280 x_clear_image (f, img);
11282 UNGCPRO;
11283 return 0;
11286 /* Create the JPEG decompression object. Let it read from fp.
11287 Read the JPEG image header. */
11288 fn_jpeg_CreateDecompress (&cinfo, JPEG_LIB_VERSION, sizeof (cinfo));
11290 if (NILP (specified_data))
11291 fn_jpeg_stdio_src (&cinfo, (FILE *) fp);
11292 else
11293 jpeg_memory_src (&cinfo, SDATA (specified_data),
11294 SBYTES (specified_data));
11296 fn_jpeg_read_header (&cinfo, TRUE);
11298 /* Customize decompression so that color quantization will be used.
11299 Start decompression. */
11300 cinfo.quantize_colors = TRUE;
11301 fn_jpeg_start_decompress (&cinfo);
11302 width = img->width = cinfo.output_width;
11303 height = img->height = cinfo.output_height;
11305 /* Create X image and pixmap. */
11306 if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
11307 longjmp (mgr.setjmp_buffer, 2);
11309 /* Allocate colors. When color quantization is used,
11310 cinfo.actual_number_of_colors has been set with the number of
11311 colors generated, and cinfo.colormap is a two-dimensional array
11312 of color indices in the range 0..cinfo.actual_number_of_colors.
11313 No more than 255 colors will be generated. */
11315 int i, ir, ig, ib;
11317 if (cinfo.out_color_components > 2)
11318 ir = 0, ig = 1, ib = 2;
11319 else if (cinfo.out_color_components > 1)
11320 ir = 0, ig = 1, ib = 0;
11321 else
11322 ir = 0, ig = 0, ib = 0;
11324 #if 0 /* TODO: Color tables. */
11325 /* Use the color table mechanism because it handles colors that
11326 cannot be allocated nicely. Such colors will be replaced with
11327 a default color, and we don't have to care about which colors
11328 can be freed safely, and which can't. */
11329 init_color_table ();
11330 #endif
11331 colors = (unsigned long *) alloca (cinfo.actual_number_of_colors
11332 * sizeof *colors);
11334 for (i = 0; i < cinfo.actual_number_of_colors; ++i)
11336 int r = cinfo.colormap[ir][i];
11337 int g = cinfo.colormap[ig][i];
11338 int b = cinfo.colormap[ib][i];
11339 #if 0 /* TODO: Color tables. */
11340 colors[i] = lookup_rgb_color (f, r, g, b);
11341 #else
11342 colors[i] = PALETTERGB (r, g, b);
11343 #endif
11346 #if 0 /* TODO: Color tables. */
11347 /* Remember those colors actually allocated. */
11348 img->colors = colors_in_color_table (&img->ncolors);
11349 free_color_table ();
11350 #endif
11353 /* Read pixels. */
11354 row_stride = width * cinfo.output_components;
11355 buffer = cinfo.mem->alloc_sarray ((j_common_ptr) &cinfo, JPOOL_IMAGE,
11356 row_stride, 1);
11357 for (y = 0; y < height; ++y)
11359 fn_jpeg_read_scanlines (&cinfo, buffer, 1);
11360 for (x = 0; x < cinfo.output_width; ++x)
11361 XPutPixel (ximg, x, y, colors[buffer[0][x]]);
11364 /* Clean up. */
11365 fn_jpeg_finish_decompress (&cinfo);
11366 fn_jpeg_destroy_decompress (&cinfo);
11367 if (fp)
11368 fclose ((FILE *) fp);
11370 /* Maybe fill in the background field while we have ximg handy. */
11371 if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
11372 IMAGE_BACKGROUND (img, f, ximg);
11374 /* Put the image into the pixmap. */
11375 x_put_x_image (f, ximg, img->pixmap, width, height);
11376 x_destroy_x_image (ximg);
11377 UNGCPRO;
11378 return 1;
11381 #endif /* HAVE_JPEG */
11385 /***********************************************************************
11386 TIFF
11387 ***********************************************************************/
11389 #if HAVE_TIFF
11391 #include <tiffio.h>
11393 static int tiff_image_p P_ ((Lisp_Object object));
11394 static int tiff_load P_ ((struct frame *f, struct image *img));
11396 /* The symbol `tiff' identifying images of this type. */
11398 Lisp_Object Qtiff;
11400 /* Indices of image specification fields in tiff_format, below. */
11402 enum tiff_keyword_index
11404 TIFF_TYPE,
11405 TIFF_DATA,
11406 TIFF_FILE,
11407 TIFF_ASCENT,
11408 TIFF_MARGIN,
11409 TIFF_RELIEF,
11410 TIFF_ALGORITHM,
11411 TIFF_HEURISTIC_MASK,
11412 TIFF_MASK,
11413 TIFF_BACKGROUND,
11414 TIFF_LAST
11417 /* Vector of image_keyword structures describing the format
11418 of valid user-defined image specifications. */
11420 static struct image_keyword tiff_format[TIFF_LAST] =
11422 {":type", IMAGE_SYMBOL_VALUE, 1},
11423 {":data", IMAGE_STRING_VALUE, 0},
11424 {":file", IMAGE_STRING_VALUE, 0},
11425 {":ascent", IMAGE_ASCENT_VALUE, 0},
11426 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
11427 {":relief", IMAGE_INTEGER_VALUE, 0},
11428 {":conversions", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11429 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11430 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11431 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
11434 /* Structure describing the image type `tiff'. */
11436 static struct image_type tiff_type =
11438 &Qtiff,
11439 tiff_image_p,
11440 tiff_load,
11441 x_clear_image,
11442 NULL
11445 /* TIFF library details. */
11446 DEF_IMGLIB_FN (TIFFSetErrorHandler);
11447 DEF_IMGLIB_FN (TIFFSetWarningHandler);
11448 DEF_IMGLIB_FN (TIFFOpen);
11449 DEF_IMGLIB_FN (TIFFClientOpen);
11450 DEF_IMGLIB_FN (TIFFGetField);
11451 DEF_IMGLIB_FN (TIFFReadRGBAImage);
11452 DEF_IMGLIB_FN (TIFFClose);
11454 static int
11455 init_tiff_functions (library)
11456 HMODULE library;
11458 LOAD_IMGLIB_FN (library, TIFFSetErrorHandler);
11459 LOAD_IMGLIB_FN (library, TIFFSetWarningHandler);
11460 LOAD_IMGLIB_FN (library, TIFFOpen);
11461 LOAD_IMGLIB_FN (library, TIFFClientOpen);
11462 LOAD_IMGLIB_FN (library, TIFFGetField);
11463 LOAD_IMGLIB_FN (library, TIFFReadRGBAImage);
11464 LOAD_IMGLIB_FN (library, TIFFClose);
11465 return 1;
11468 /* Return non-zero if OBJECT is a valid TIFF image specification. */
11470 static int
11471 tiff_image_p (object)
11472 Lisp_Object object;
11474 struct image_keyword fmt[TIFF_LAST];
11475 bcopy (tiff_format, fmt, sizeof fmt);
11477 if (!parse_image_spec (object, fmt, TIFF_LAST, Qtiff))
11478 return 0;
11480 /* Must specify either the :data or :file keyword. */
11481 return fmt[TIFF_FILE].count + fmt[TIFF_DATA].count == 1;
11485 /* Reading from a memory buffer for TIFF images Based on the PNG
11486 memory source, but we have to provide a lot of extra functions.
11487 Blah.
11489 We really only need to implement read and seek, but I am not
11490 convinced that the TIFF library is smart enough not to destroy
11491 itself if we only hand it the function pointers we need to
11492 override. */
11494 typedef struct
11496 unsigned char *bytes;
11497 size_t len;
11498 int index;
11500 tiff_memory_source;
11502 static size_t
11503 tiff_read_from_memory (data, buf, size)
11504 thandle_t data;
11505 tdata_t buf;
11506 tsize_t size;
11508 tiff_memory_source *src = (tiff_memory_source *) data;
11510 if (size > src->len - src->index)
11511 return (size_t) -1;
11512 bcopy (src->bytes + src->index, buf, size);
11513 src->index += size;
11514 return size;
11517 static size_t
11518 tiff_write_from_memory (data, buf, size)
11519 thandle_t data;
11520 tdata_t buf;
11521 tsize_t size;
11523 return (size_t) -1;
11526 static toff_t
11527 tiff_seek_in_memory (data, off, whence)
11528 thandle_t data;
11529 toff_t off;
11530 int whence;
11532 tiff_memory_source *src = (tiff_memory_source *) data;
11533 int idx;
11535 switch (whence)
11537 case SEEK_SET: /* Go from beginning of source. */
11538 idx = off;
11539 break;
11541 case SEEK_END: /* Go from end of source. */
11542 idx = src->len + off;
11543 break;
11545 case SEEK_CUR: /* Go from current position. */
11546 idx = src->index + off;
11547 break;
11549 default: /* Invalid `whence'. */
11550 return -1;
11553 if (idx > src->len || idx < 0)
11554 return -1;
11556 src->index = idx;
11557 return src->index;
11560 static int
11561 tiff_close_memory (data)
11562 thandle_t data;
11564 /* NOOP */
11565 return 0;
11568 static int
11569 tiff_mmap_memory (data, pbase, psize)
11570 thandle_t data;
11571 tdata_t *pbase;
11572 toff_t *psize;
11574 /* It is already _IN_ memory. */
11575 return 0;
11578 static void
11579 tiff_unmap_memory (data, base, size)
11580 thandle_t data;
11581 tdata_t base;
11582 toff_t size;
11584 /* We don't need to do this. */
11587 static toff_t
11588 tiff_size_of_memory (data)
11589 thandle_t data;
11591 return ((tiff_memory_source *) data)->len;
11595 static void
11596 tiff_error_handler (title, format, ap)
11597 const char *title, *format;
11598 va_list ap;
11600 char buf[512];
11601 int len;
11603 len = sprintf (buf, "TIFF error: %s ", title);
11604 vsprintf (buf + len, format, ap);
11605 add_to_log (buf, Qnil, Qnil);
11609 static void
11610 tiff_warning_handler (title, format, ap)
11611 const char *title, *format;
11612 va_list ap;
11614 char buf[512];
11615 int len;
11617 len = sprintf (buf, "TIFF warning: %s ", title);
11618 vsprintf (buf + len, format, ap);
11619 add_to_log (buf, Qnil, Qnil);
11623 /* Load TIFF image IMG for use on frame F. Value is non-zero if
11624 successful. */
11626 static int
11627 tiff_load (f, img)
11628 struct frame *f;
11629 struct image *img;
11631 Lisp_Object file, specified_file;
11632 Lisp_Object specified_data;
11633 TIFF *tiff;
11634 int width, height, x, y;
11635 uint32 *buf;
11636 int rc;
11637 XImage *ximg;
11638 struct gcpro gcpro1;
11639 tiff_memory_source memsrc;
11641 specified_file = image_spec_value (img->spec, QCfile, NULL);
11642 specified_data = image_spec_value (img->spec, QCdata, NULL);
11643 file = Qnil;
11644 GCPRO1 (file);
11646 fn_TIFFSetErrorHandler (tiff_error_handler);
11647 fn_TIFFSetWarningHandler (tiff_warning_handler);
11649 if (NILP (specified_data))
11651 /* Read from a file */
11652 file = x_find_image_file (specified_file);
11653 if (!STRINGP (file))
11655 image_error ("Cannot find image file `%s'", file, Qnil);
11656 UNGCPRO;
11657 return 0;
11660 /* Try to open the image file. */
11661 tiff = fn_TIFFOpen (SDATA (file), "r");
11662 if (tiff == NULL)
11664 image_error ("Cannot open `%s'", file, Qnil);
11665 UNGCPRO;
11666 return 0;
11669 else
11671 /* Memory source! */
11672 memsrc.bytes = SDATA (specified_data);
11673 memsrc.len = SBYTES (specified_data);
11674 memsrc.index = 0;
11676 tiff = fn_TIFFClientOpen ("memory_source", "r", &memsrc,
11677 (TIFFReadWriteProc) tiff_read_from_memory,
11678 (TIFFReadWriteProc) tiff_write_from_memory,
11679 tiff_seek_in_memory,
11680 tiff_close_memory,
11681 tiff_size_of_memory,
11682 tiff_mmap_memory,
11683 tiff_unmap_memory);
11685 if (!tiff)
11687 image_error ("Cannot open memory source for `%s'", img->spec, Qnil);
11688 UNGCPRO;
11689 return 0;
11693 /* Get width and height of the image, and allocate a raster buffer
11694 of width x height 32-bit values. */
11695 fn_TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &width);
11696 fn_TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &height);
11697 buf = (uint32 *) xmalloc (width * height * sizeof *buf);
11699 rc = fn_TIFFReadRGBAImage (tiff, width, height, buf, 0);
11700 fn_TIFFClose (tiff);
11701 if (!rc)
11703 image_error ("Error reading TIFF image `%s'", img->spec, Qnil);
11704 xfree (buf);
11705 UNGCPRO;
11706 return 0;
11709 /* Create the X image and pixmap. */
11710 if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
11712 xfree (buf);
11713 UNGCPRO;
11714 return 0;
11717 #if 0 /* TODO: Color tables. */
11718 /* Initialize the color table. */
11719 init_color_table ();
11720 #endif
11722 /* Process the pixel raster. Origin is in the lower-left corner. */
11723 for (y = 0; y < height; ++y)
11725 uint32 *row = buf + y * width;
11727 for (x = 0; x < width; ++x)
11729 uint32 abgr = row[x];
11730 int r = TIFFGetR (abgr);
11731 int g = TIFFGetG (abgr);
11732 int b = TIFFGetB (abgr);
11733 #if 0 /* TODO: Color tables. */
11734 XPutPixel (ximg, x, height - 1 - y, lookup_rgb_color (f, r, g, b));
11735 #else
11736 XPutPixel (ximg, x, height - 1 - y, PALETTERGB (r, g, b));
11737 #endif
11741 #if 0 /* TODO: Color tables. */
11742 /* Remember the colors allocated for the image. Free the color table. */
11743 img->colors = colors_in_color_table (&img->ncolors);
11744 free_color_table ();
11745 #endif
11747 img->width = width;
11748 img->height = height;
11750 /* Maybe fill in the background field while we have ximg handy. */
11751 if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
11752 IMAGE_BACKGROUND (img, f, ximg);
11754 /* Put the image into the pixmap, then free the X image and its buffer. */
11755 x_put_x_image (f, ximg, img->pixmap, width, height);
11756 x_destroy_x_image (ximg);
11757 xfree (buf);
11759 UNGCPRO;
11760 return 1;
11763 #endif /* HAVE_TIFF != 0 */
11767 /***********************************************************************
11769 ***********************************************************************/
11771 #if HAVE_GIF
11773 #define DrawText gif_DrawText
11774 #include <gif_lib.h>
11775 #undef DrawText
11777 static int gif_image_p P_ ((Lisp_Object object));
11778 static int gif_load P_ ((struct frame *f, struct image *img));
11780 /* The symbol `gif' identifying images of this type. */
11782 Lisp_Object Qgif;
11784 /* Indices of image specification fields in gif_format, below. */
11786 enum gif_keyword_index
11788 GIF_TYPE,
11789 GIF_DATA,
11790 GIF_FILE,
11791 GIF_ASCENT,
11792 GIF_MARGIN,
11793 GIF_RELIEF,
11794 GIF_ALGORITHM,
11795 GIF_HEURISTIC_MASK,
11796 GIF_MASK,
11797 GIF_IMAGE,
11798 GIF_BACKGROUND,
11799 GIF_LAST
11802 /* Vector of image_keyword structures describing the format
11803 of valid user-defined image specifications. */
11805 static struct image_keyword gif_format[GIF_LAST] =
11807 {":type", IMAGE_SYMBOL_VALUE, 1},
11808 {":data", IMAGE_STRING_VALUE, 0},
11809 {":file", IMAGE_STRING_VALUE, 0},
11810 {":ascent", IMAGE_ASCENT_VALUE, 0},
11811 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
11812 {":relief", IMAGE_INTEGER_VALUE, 0},
11813 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11814 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11815 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
11816 {":image", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0},
11817 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
11820 /* Structure describing the image type `gif'. */
11822 static struct image_type gif_type =
11824 &Qgif,
11825 gif_image_p,
11826 gif_load,
11827 x_clear_image,
11828 NULL
11832 /* GIF library details. */
11833 DEF_IMGLIB_FN (DGifCloseFile);
11834 DEF_IMGLIB_FN (DGifSlurp);
11835 DEF_IMGLIB_FN (DGifOpen);
11836 DEF_IMGLIB_FN (DGifOpenFileName);
11838 static int
11839 init_gif_functions (library)
11840 HMODULE library;
11842 LOAD_IMGLIB_FN (library, DGifCloseFile);
11843 LOAD_IMGLIB_FN (library, DGifSlurp);
11844 LOAD_IMGLIB_FN (library, DGifOpen);
11845 LOAD_IMGLIB_FN (library, DGifOpenFileName);
11846 return 1;
11850 /* Return non-zero if OBJECT is a valid GIF image specification. */
11852 static int
11853 gif_image_p (object)
11854 Lisp_Object object;
11856 struct image_keyword fmt[GIF_LAST];
11857 bcopy (gif_format, fmt, sizeof fmt);
11859 if (!parse_image_spec (object, fmt, GIF_LAST, Qgif))
11860 return 0;
11862 /* Must specify either the :data or :file keyword. */
11863 return fmt[GIF_FILE].count + fmt[GIF_DATA].count == 1;
11866 /* Reading a GIF image from memory
11867 Based on the PNG memory stuff to a certain extent. */
11869 typedef struct
11871 unsigned char *bytes;
11872 size_t len;
11873 int index;
11875 gif_memory_source;
11877 /* Make the current memory source available to gif_read_from_memory.
11878 It's done this way because not all versions of libungif support
11879 a UserData field in the GifFileType structure. */
11880 static gif_memory_source *current_gif_memory_src;
11882 static int
11883 gif_read_from_memory (file, buf, len)
11884 GifFileType *file;
11885 GifByteType *buf;
11886 int len;
11888 gif_memory_source *src = current_gif_memory_src;
11890 if (len > src->len - src->index)
11891 return -1;
11893 bcopy (src->bytes + src->index, buf, len);
11894 src->index += len;
11895 return len;
11899 /* Load GIF image IMG for use on frame F. Value is non-zero if
11900 successful. */
11902 static int
11903 gif_load (f, img)
11904 struct frame *f;
11905 struct image *img;
11907 Lisp_Object file, specified_file;
11908 Lisp_Object specified_data;
11909 int rc, width, height, x, y, i;
11910 XImage *ximg;
11911 ColorMapObject *gif_color_map;
11912 unsigned long pixel_colors[256];
11913 GifFileType *gif;
11914 struct gcpro gcpro1;
11915 Lisp_Object image;
11916 int ino, image_left, image_top, image_width, image_height;
11917 gif_memory_source memsrc;
11918 unsigned char *raster;
11920 specified_file = image_spec_value (img->spec, QCfile, NULL);
11921 specified_data = image_spec_value (img->spec, QCdata, NULL);
11922 file = Qnil;
11923 GCPRO1 (file);
11925 if (NILP (specified_data))
11927 file = x_find_image_file (specified_file);
11928 if (!STRINGP (file))
11930 image_error ("Cannot find image file `%s'", specified_file, Qnil);
11931 UNGCPRO;
11932 return 0;
11935 /* Open the GIF file. */
11936 gif = fn_DGifOpenFileName (SDATA (file));
11937 if (gif == NULL)
11939 image_error ("Cannot open `%s'", file, Qnil);
11940 UNGCPRO;
11941 return 0;
11944 else
11946 /* Read from memory! */
11947 current_gif_memory_src = &memsrc;
11948 memsrc.bytes = SDATA (specified_data);
11949 memsrc.len = SBYTES (specified_data);
11950 memsrc.index = 0;
11952 gif = fn_DGifOpen(&memsrc, gif_read_from_memory);
11953 if (!gif)
11955 image_error ("Cannot open memory source `%s'", img->spec, Qnil);
11956 UNGCPRO;
11957 return 0;
11961 /* Read entire contents. */
11962 rc = fn_DGifSlurp (gif);
11963 if (rc == GIF_ERROR)
11965 image_error ("Error reading `%s'", img->spec, Qnil);
11966 fn_DGifCloseFile (gif);
11967 UNGCPRO;
11968 return 0;
11971 image = image_spec_value (img->spec, QCindex, NULL);
11972 ino = INTEGERP (image) ? XFASTINT (image) : 0;
11973 if (ino >= gif->ImageCount)
11975 image_error ("Invalid image number `%s' in image `%s'",
11976 image, img->spec);
11977 fn_DGifCloseFile (gif);
11978 UNGCPRO;
11979 return 0;
11982 width = img->width = max (gif->SWidth, gif->Image.Left + gif->Image.Width);
11983 height = img->height = max (gif->SHeight, gif->Image.Top + gif->Image.Height);
11985 /* Create the X image and pixmap. */
11986 if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
11988 fn_DGifCloseFile (gif);
11989 UNGCPRO;
11990 return 0;
11993 /* Allocate colors. */
11994 gif_color_map = gif->SavedImages[ino].ImageDesc.ColorMap;
11995 if (!gif_color_map)
11996 gif_color_map = gif->SColorMap;
11997 #if 0 /* TODO: Color tables */
11998 init_color_table ();
11999 #endif
12000 bzero (pixel_colors, sizeof pixel_colors);
12002 for (i = 0; i < gif_color_map->ColorCount; ++i)
12004 int r = gif_color_map->Colors[i].Red;
12005 int g = gif_color_map->Colors[i].Green;
12006 int b = gif_color_map->Colors[i].Blue;
12007 #if 0 /* TODO: Color tables */
12008 pixel_colors[i] = lookup_rgb_color (f, r, g, b);
12009 #else
12010 pixel_colors[i] = PALETTERGB (r, g, b);
12011 #endif
12014 #if 0 /* TODO: Color tables */
12015 img->colors = colors_in_color_table (&img->ncolors);
12016 free_color_table ();
12017 #endif
12019 /* Clear the part of the screen image that are not covered by
12020 the image from the GIF file. Full animated GIF support
12021 requires more than can be done here (see the gif89 spec,
12022 disposal methods). Let's simply assume that the part
12023 not covered by a sub-image is in the frame's background color. */
12024 image_top = gif->SavedImages[ino].ImageDesc.Top;
12025 image_left = gif->SavedImages[ino].ImageDesc.Left;
12026 image_width = gif->SavedImages[ino].ImageDesc.Width;
12027 image_height = gif->SavedImages[ino].ImageDesc.Height;
12029 for (y = 0; y < image_top; ++y)
12030 for (x = 0; x < width; ++x)
12031 XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
12033 for (y = image_top + image_height; y < height; ++y)
12034 for (x = 0; x < width; ++x)
12035 XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
12037 for (y = image_top; y < image_top + image_height; ++y)
12039 for (x = 0; x < image_left; ++x)
12040 XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
12041 for (x = image_left + image_width; x < width; ++x)
12042 XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
12045 /* Read the GIF image into the X image. We use a local variable
12046 `raster' here because RasterBits below is a char *, and invites
12047 problems with bytes >= 0x80. */
12048 raster = (unsigned char *) gif->SavedImages[ino].RasterBits;
12050 if (gif->SavedImages[ino].ImageDesc.Interlace)
12052 static int interlace_start[] = {0, 4, 2, 1};
12053 static int interlace_increment[] = {8, 8, 4, 2};
12054 int pass;
12055 int row = interlace_start[0];
12057 pass = 0;
12059 for (y = 0; y < image_height; y++)
12061 if (row >= image_height)
12063 row = interlace_start[++pass];
12064 while (row >= image_height)
12065 row = interlace_start[++pass];
12068 for (x = 0; x < image_width; x++)
12070 int i = raster[(y * image_width) + x];
12071 XPutPixel (ximg, x + image_left, row + image_top,
12072 pixel_colors[i]);
12075 row += interlace_increment[pass];
12078 else
12080 for (y = 0; y < image_height; ++y)
12081 for (x = 0; x < image_width; ++x)
12083 int i = raster[y* image_width + x];
12084 XPutPixel (ximg, x + image_left, y + image_top, pixel_colors[i]);
12088 fn_DGifCloseFile (gif);
12090 /* Maybe fill in the background field while we have ximg handy. */
12091 if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
12092 IMAGE_BACKGROUND (img, f, ximg);
12094 /* Put the image into the pixmap, then free the X image and its buffer. */
12095 x_put_x_image (f, ximg, img->pixmap, width, height);
12096 x_destroy_x_image (ximg);
12098 UNGCPRO;
12099 return 1;
12102 #endif /* HAVE_GIF != 0 */
12106 /***********************************************************************
12107 Ghostscript
12108 ***********************************************************************/
12110 Lisp_Object Qpostscript;
12112 /* Keyword symbols. */
12114 Lisp_Object QCloader, QCbounding_box, QCpt_width, QCpt_height;
12116 #ifdef HAVE_GHOSTSCRIPT
12117 static int gs_image_p P_ ((Lisp_Object object));
12118 static int gs_load P_ ((struct frame *f, struct image *img));
12119 static void gs_clear_image P_ ((struct frame *f, struct image *img));
12121 /* The symbol `postscript' identifying images of this type. */
12123 /* Keyword symbols. */
12125 Lisp_Object QCloader, QCbounding_box, QCpt_width, QCpt_height;
12127 /* Indices of image specification fields in gs_format, below. */
12129 enum gs_keyword_index
12131 GS_TYPE,
12132 GS_PT_WIDTH,
12133 GS_PT_HEIGHT,
12134 GS_FILE,
12135 GS_LOADER,
12136 GS_BOUNDING_BOX,
12137 GS_ASCENT,
12138 GS_MARGIN,
12139 GS_RELIEF,
12140 GS_ALGORITHM,
12141 GS_HEURISTIC_MASK,
12142 GS_MASK,
12143 GS_BACKGROUND,
12144 GS_LAST
12147 /* Vector of image_keyword structures describing the format
12148 of valid user-defined image specifications. */
12150 static struct image_keyword gs_format[GS_LAST] =
12152 {":type", IMAGE_SYMBOL_VALUE, 1},
12153 {":pt-width", IMAGE_POSITIVE_INTEGER_VALUE, 1},
12154 {":pt-height", IMAGE_POSITIVE_INTEGER_VALUE, 1},
12155 {":file", IMAGE_STRING_VALUE, 1},
12156 {":loader", IMAGE_FUNCTION_VALUE, 0},
12157 {":bounding-box", IMAGE_DONT_CHECK_VALUE_TYPE, 1},
12158 {":ascent", IMAGE_ASCENT_VALUE, 0},
12159 {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
12160 {":relief", IMAGE_INTEGER_VALUE, 0},
12161 {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
12162 {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
12163 {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
12164 {":background", IMAGE_STRING_OR_NIL_VALUE, 0}
12167 /* Structure describing the image type `ghostscript'. */
12169 static struct image_type gs_type =
12171 &Qpostscript,
12172 gs_image_p,
12173 gs_load,
12174 gs_clear_image,
12175 NULL
12179 /* Free X resources of Ghostscript image IMG which is used on frame F. */
12181 static void
12182 gs_clear_image (f, img)
12183 struct frame *f;
12184 struct image *img;
12186 /* IMG->data.ptr_val may contain a recorded colormap. */
12187 xfree (img->data.ptr_val);
12188 x_clear_image (f, img);
12192 /* Return non-zero if OBJECT is a valid Ghostscript image
12193 specification. */
12195 static int
12196 gs_image_p (object)
12197 Lisp_Object object;
12199 struct image_keyword fmt[GS_LAST];
12200 Lisp_Object tem;
12201 int i;
12203 bcopy (gs_format, fmt, sizeof fmt);
12205 if (!parse_image_spec (object, fmt, GS_LAST, Qpostscript))
12206 return 0;
12208 /* Bounding box must be a list or vector containing 4 integers. */
12209 tem = fmt[GS_BOUNDING_BOX].value;
12210 if (CONSP (tem))
12212 for (i = 0; i < 4; ++i, tem = XCDR (tem))
12213 if (!CONSP (tem) || !INTEGERP (XCAR (tem)))
12214 return 0;
12215 if (!NILP (tem))
12216 return 0;
12218 else if (VECTORP (tem))
12220 if (XVECTOR (tem)->size != 4)
12221 return 0;
12222 for (i = 0; i < 4; ++i)
12223 if (!INTEGERP (XVECTOR (tem)->contents[i]))
12224 return 0;
12226 else
12227 return 0;
12229 return 1;
12233 /* Load Ghostscript image IMG for use on frame F. Value is non-zero
12234 if successful. */
12236 static int
12237 gs_load (f, img)
12238 struct frame *f;
12239 struct image *img;
12241 char buffer[100];
12242 Lisp_Object window_and_pixmap_id = Qnil, loader, pt_height, pt_width;
12243 struct gcpro gcpro1, gcpro2;
12244 Lisp_Object frame;
12245 double in_width, in_height;
12246 Lisp_Object pixel_colors = Qnil;
12248 /* Compute pixel size of pixmap needed from the given size in the
12249 image specification. Sizes in the specification are in pt. 1 pt
12250 = 1/72 in, xdpi and ydpi are stored in the frame's X display
12251 info. */
12252 pt_width = image_spec_value (img->spec, QCpt_width, NULL);
12253 in_width = XFASTINT (pt_width) / 72.0;
12254 img->width = in_width * FRAME_W32_DISPLAY_INFO (f)->resx;
12255 pt_height = image_spec_value (img->spec, QCpt_height, NULL);
12256 in_height = XFASTINT (pt_height) / 72.0;
12257 img->height = in_height * FRAME_W32_DISPLAY_INFO (f)->resy;
12259 /* Create the pixmap. */
12260 BLOCK_INPUT;
12261 xassert (img->pixmap == 0);
12262 img->pixmap = XCreatePixmap (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
12263 img->width, img->height,
12264 one_w32_display_info.n_cbits);
12265 UNBLOCK_INPUT;
12267 if (!img->pixmap)
12269 image_error ("Unable to create pixmap for `%s'", img->spec, Qnil);
12270 return 0;
12273 /* Call the loader to fill the pixmap. It returns a process object
12274 if successful. We do not record_unwind_protect here because
12275 other places in redisplay like calling window scroll functions
12276 don't either. Let the Lisp loader use `unwind-protect' instead. */
12277 GCPRO2 (window_and_pixmap_id, pixel_colors);
12279 sprintf (buffer, "%lu %lu",
12280 (unsigned long) FRAME_W32_WINDOW (f),
12281 (unsigned long) img->pixmap);
12282 window_and_pixmap_id = build_string (buffer);
12284 sprintf (buffer, "%lu %lu",
12285 FRAME_FOREGROUND_PIXEL (f),
12286 FRAME_BACKGROUND_PIXEL (f));
12287 pixel_colors = build_string (buffer);
12289 XSETFRAME (frame, f);
12290 loader = image_spec_value (img->spec, QCloader, NULL);
12291 if (NILP (loader))
12292 loader = intern ("gs-load-image");
12294 img->data.lisp_val = call6 (loader, frame, img->spec,
12295 make_number (img->width),
12296 make_number (img->height),
12297 window_and_pixmap_id,
12298 pixel_colors);
12299 UNGCPRO;
12300 return PROCESSP (img->data.lisp_val);
12304 /* Kill the Ghostscript process that was started to fill PIXMAP on
12305 frame F. Called from XTread_socket when receiving an event
12306 telling Emacs that Ghostscript has finished drawing. */
12308 void
12309 x_kill_gs_process (pixmap, f)
12310 Pixmap pixmap;
12311 struct frame *f;
12313 struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
12314 int class, i;
12315 struct image *img;
12317 /* Find the image containing PIXMAP. */
12318 for (i = 0; i < c->used; ++i)
12319 if (c->images[i]->pixmap == pixmap)
12320 break;
12322 /* Should someone in between have cleared the image cache, for
12323 instance, give up. */
12324 if (i == c->used)
12325 return;
12327 /* Kill the GS process. We should have found PIXMAP in the image
12328 cache and its image should contain a process object. */
12329 img = c->images[i];
12330 xassert (PROCESSP (img->data.lisp_val));
12331 Fkill_process (img->data.lisp_val, Qnil);
12332 img->data.lisp_val = Qnil;
12334 /* On displays with a mutable colormap, figure out the colors
12335 allocated for the image by looking at the pixels of an XImage for
12336 img->pixmap. */
12337 class = FRAME_W32_DISPLAY_INFO (f)->visual->class;
12338 if (class != StaticColor && class != StaticGray && class != TrueColor)
12340 XImage *ximg;
12342 BLOCK_INPUT;
12344 /* Try to get an XImage for img->pixmep. */
12345 ximg = XGetImage (FRAME_W32_DISPLAY (f), img->pixmap,
12346 0, 0, img->width, img->height, ~0, ZPixmap);
12347 if (ximg)
12349 int x, y;
12351 /* Initialize the color table. */
12352 init_color_table ();
12354 /* For each pixel of the image, look its color up in the
12355 color table. After having done so, the color table will
12356 contain an entry for each color used by the image. */
12357 for (y = 0; y < img->height; ++y)
12358 for (x = 0; x < img->width; ++x)
12360 unsigned long pixel = XGetPixel (ximg, x, y);
12361 lookup_pixel_color (f, pixel);
12364 /* Record colors in the image. Free color table and XImage. */
12365 img->colors = colors_in_color_table (&img->ncolors);
12366 free_color_table ();
12367 XDestroyImage (ximg);
12369 #if 0 /* This doesn't seem to be the case. If we free the colors
12370 here, we get a BadAccess later in x_clear_image when
12371 freeing the colors. */
12372 /* We have allocated colors once, but Ghostscript has also
12373 allocated colors on behalf of us. So, to get the
12374 reference counts right, free them once. */
12375 if (img->ncolors)
12376 x_free_colors (FRAME_W32_DISPLAY (f), cmap,
12377 img->colors, img->ncolors, 0);
12378 #endif
12380 else
12381 image_error ("Cannot get X image of `%s'; colors will not be freed",
12382 img->spec, Qnil);
12384 UNBLOCK_INPUT;
12387 /* Now that we have the pixmap, compute mask and transform the
12388 image if requested. */
12389 BLOCK_INPUT;
12390 postprocess_image (f, img);
12391 UNBLOCK_INPUT;
12394 #endif /* HAVE_GHOSTSCRIPT */
12397 /***********************************************************************
12398 Window properties
12399 ***********************************************************************/
12401 DEFUN ("x-change-window-property", Fx_change_window_property,
12402 Sx_change_window_property, 2, 3, 0,
12403 doc: /* Change window property PROP to VALUE on the X window of FRAME.
12404 PROP and VALUE must be strings. FRAME nil or omitted means use the
12405 selected frame. Value is VALUE. */)
12406 (prop, value, frame)
12407 Lisp_Object frame, prop, value;
12409 #if 0 /* TODO : port window properties to W32 */
12410 struct frame *f = check_x_frame (frame);
12411 Atom prop_atom;
12413 CHECK_STRING (prop);
12414 CHECK_STRING (value);
12416 BLOCK_INPUT;
12417 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
12418 XChangeProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
12419 prop_atom, XA_STRING, 8, PropModeReplace,
12420 SDATA (value), SCHARS (value));
12422 /* Make sure the property is set when we return. */
12423 XFlush (FRAME_W32_DISPLAY (f));
12424 UNBLOCK_INPUT;
12426 #endif /* TODO */
12428 return value;
12432 DEFUN ("x-delete-window-property", Fx_delete_window_property,
12433 Sx_delete_window_property, 1, 2, 0,
12434 doc: /* Remove window property PROP from X window of FRAME.
12435 FRAME nil or omitted means use the selected frame. Value is PROP. */)
12436 (prop, frame)
12437 Lisp_Object prop, frame;
12439 #if 0 /* TODO : port window properties to W32 */
12441 struct frame *f = check_x_frame (frame);
12442 Atom prop_atom;
12444 CHECK_STRING (prop);
12445 BLOCK_INPUT;
12446 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
12447 XDeleteProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f), prop_atom);
12449 /* Make sure the property is removed when we return. */
12450 XFlush (FRAME_W32_DISPLAY (f));
12451 UNBLOCK_INPUT;
12452 #endif /* TODO */
12454 return prop;
12458 DEFUN ("x-window-property", Fx_window_property, Sx_window_property,
12459 1, 2, 0,
12460 doc: /* Value is the value of window property PROP on FRAME.
12461 If FRAME is nil or omitted, use the selected frame. Value is nil
12462 if FRAME hasn't a property with name PROP or if PROP has no string
12463 value. */)
12464 (prop, frame)
12465 Lisp_Object prop, frame;
12467 #if 0 /* TODO : port window properties to W32 */
12469 struct frame *f = check_x_frame (frame);
12470 Atom prop_atom;
12471 int rc;
12472 Lisp_Object prop_value = Qnil;
12473 char *tmp_data = NULL;
12474 Atom actual_type;
12475 int actual_format;
12476 unsigned long actual_size, bytes_remaining;
12478 CHECK_STRING (prop);
12479 BLOCK_INPUT;
12480 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
12481 rc = XGetWindowProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
12482 prop_atom, 0, 0, False, XA_STRING,
12483 &actual_type, &actual_format, &actual_size,
12484 &bytes_remaining, (unsigned char **) &tmp_data);
12485 if (rc == Success)
12487 int size = bytes_remaining;
12489 XFree (tmp_data);
12490 tmp_data = NULL;
12492 rc = XGetWindowProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
12493 prop_atom, 0, bytes_remaining,
12494 False, XA_STRING,
12495 &actual_type, &actual_format,
12496 &actual_size, &bytes_remaining,
12497 (unsigned char **) &tmp_data);
12498 if (rc == Success)
12499 prop_value = make_string (tmp_data, size);
12501 XFree (tmp_data);
12504 UNBLOCK_INPUT;
12506 return prop_value;
12508 #endif /* TODO */
12509 return Qnil;
12514 /***********************************************************************
12515 Busy cursor
12516 ***********************************************************************/
12518 /* If non-null, an asynchronous timer that, when it expires, displays
12519 an hourglass cursor on all frames. */
12521 static struct atimer *hourglass_atimer;
12523 /* Non-zero means an hourglass cursor is currently shown. */
12525 static int hourglass_shown_p;
12527 /* Number of seconds to wait before displaying an hourglass cursor. */
12529 static Lisp_Object Vhourglass_delay;
12531 /* Default number of seconds to wait before displaying an hourglass
12532 cursor. */
12534 #define DEFAULT_HOURGLASS_DELAY 1
12536 /* Function prototypes. */
12538 static void show_hourglass P_ ((struct atimer *));
12539 static void hide_hourglass P_ ((void));
12542 /* Cancel a currently active hourglass timer, and start a new one. */
12544 void
12545 start_hourglass ()
12547 #if 0 /* TODO: cursor shape changes. */
12548 EMACS_TIME delay;
12549 int secs, usecs = 0;
12551 cancel_hourglass ();
12553 if (INTEGERP (Vhourglass_delay)
12554 && XINT (Vhourglass_delay) > 0)
12555 secs = XFASTINT (Vhourglass_delay);
12556 else if (FLOATP (Vhourglass_delay)
12557 && XFLOAT_DATA (Vhourglass_delay) > 0)
12559 Lisp_Object tem;
12560 tem = Ftruncate (Vhourglass_delay, Qnil);
12561 secs = XFASTINT (tem);
12562 usecs = (XFLOAT_DATA (Vhourglass_delay) - secs) * 1000000;
12564 else
12565 secs = DEFAULT_HOURGLASS_DELAY;
12567 EMACS_SET_SECS_USECS (delay, secs, usecs);
12568 hourglass_atimer = start_atimer (ATIMER_RELATIVE, delay,
12569 show_hourglass, NULL);
12570 #endif
12574 /* Cancel the hourglass cursor timer if active, hide an hourglass
12575 cursor if shown. */
12577 void
12578 cancel_hourglass ()
12580 if (hourglass_atimer)
12582 cancel_atimer (hourglass_atimer);
12583 hourglass_atimer = NULL;
12586 if (hourglass_shown_p)
12587 hide_hourglass ();
12591 /* Timer function of hourglass_atimer. TIMER is equal to
12592 hourglass_atimer.
12594 Display an hourglass cursor on all frames by mapping the frames'
12595 hourglass_window. Set the hourglass_p flag in the frames'
12596 output_data.x structure to indicate that an hourglass cursor is
12597 shown on the frames. */
12599 static void
12600 show_hourglass (timer)
12601 struct atimer *timer;
12603 #if 0 /* TODO: cursor shape changes. */
12604 /* The timer implementation will cancel this timer automatically
12605 after this function has run. Set hourglass_atimer to null
12606 so that we know the timer doesn't have to be canceled. */
12607 hourglass_atimer = NULL;
12609 if (!hourglass_shown_p)
12611 Lisp_Object rest, frame;
12613 BLOCK_INPUT;
12615 FOR_EACH_FRAME (rest, frame)
12616 if (FRAME_W32_P (XFRAME (frame)))
12618 struct frame *f = XFRAME (frame);
12620 f->output_data.w32->hourglass_p = 1;
12622 if (!f->output_data.w32->hourglass_window)
12624 unsigned long mask = CWCursor;
12625 XSetWindowAttributes attrs;
12627 attrs.cursor = f->output_data.w32->hourglass_cursor;
12629 f->output_data.w32->hourglass_window
12630 = XCreateWindow (FRAME_X_DISPLAY (f),
12631 FRAME_OUTER_WINDOW (f),
12632 0, 0, 32000, 32000, 0, 0,
12633 InputOnly,
12634 CopyFromParent,
12635 mask, &attrs);
12638 XMapRaised (FRAME_X_DISPLAY (f),
12639 f->output_data.w32->hourglass_window);
12640 XFlush (FRAME_X_DISPLAY (f));
12643 hourglass_shown_p = 1;
12644 UNBLOCK_INPUT;
12646 #endif
12650 /* Hide the hourglass cursor on all frames, if it is currently shown. */
12652 static void
12653 hide_hourglass ()
12655 #if 0 /* TODO: cursor shape changes. */
12656 if (hourglass_shown_p)
12658 Lisp_Object rest, frame;
12660 BLOCK_INPUT;
12661 FOR_EACH_FRAME (rest, frame)
12663 struct frame *f = XFRAME (frame);
12665 if (FRAME_W32_P (f)
12666 /* Watch out for newly created frames. */
12667 && f->output_data.x->hourglass_window)
12669 XUnmapWindow (FRAME_X_DISPLAY (f),
12670 f->output_data.x->hourglass_window);
12671 /* Sync here because XTread_socket looks at the
12672 hourglass_p flag that is reset to zero below. */
12673 XSync (FRAME_X_DISPLAY (f), False);
12674 f->output_data.x->hourglass_p = 0;
12678 hourglass_shown_p = 0;
12679 UNBLOCK_INPUT;
12681 #endif
12686 /***********************************************************************
12687 Tool tips
12688 ***********************************************************************/
12690 static Lisp_Object x_create_tip_frame P_ ((struct w32_display_info *,
12691 Lisp_Object, Lisp_Object));
12692 static void compute_tip_xy P_ ((struct frame *, Lisp_Object, Lisp_Object,
12693 Lisp_Object, int, int, int *, int *));
12695 /* The frame of a currently visible tooltip. */
12697 Lisp_Object tip_frame;
12699 /* If non-nil, a timer started that hides the last tooltip when it
12700 fires. */
12702 Lisp_Object tip_timer;
12703 Window tip_window;
12705 /* If non-nil, a vector of 3 elements containing the last args
12706 with which x-show-tip was called. See there. */
12708 Lisp_Object last_show_tip_args;
12710 /* Maximum size for tooltips; a cons (COLUMNS . ROWS). */
12712 Lisp_Object Vx_max_tooltip_size;
12715 static Lisp_Object
12716 unwind_create_tip_frame (frame)
12717 Lisp_Object frame;
12719 Lisp_Object deleted;
12721 deleted = unwind_create_frame (frame);
12722 if (EQ (deleted, Qt))
12724 tip_window = NULL;
12725 tip_frame = Qnil;
12728 return deleted;
12732 /* Create a frame for a tooltip on the display described by DPYINFO.
12733 PARMS is a list of frame parameters. TEXT is the string to
12734 display in the tip frame. Value is the frame.
12736 Note that functions called here, esp. x_default_parameter can
12737 signal errors, for instance when a specified color name is
12738 undefined. We have to make sure that we're in a consistent state
12739 when this happens. */
12741 static Lisp_Object
12742 x_create_tip_frame (dpyinfo, parms, text)
12743 struct w32_display_info *dpyinfo;
12744 Lisp_Object parms, text;
12746 struct frame *f;
12747 Lisp_Object frame, tem;
12748 Lisp_Object name;
12749 long window_prompting = 0;
12750 int width, height;
12751 int count = SPECPDL_INDEX ();
12752 struct gcpro gcpro1, gcpro2, gcpro3;
12753 struct kboard *kb;
12754 int face_change_count_before = face_change_count;
12755 Lisp_Object buffer;
12756 struct buffer *old_buffer;
12758 check_w32 ();
12760 /* Use this general default value to start with until we know if
12761 this frame has a specified name. */
12762 Vx_resource_name = Vinvocation_name;
12764 #ifdef MULTI_KBOARD
12765 kb = dpyinfo->kboard;
12766 #else
12767 kb = &the_only_kboard;
12768 #endif
12770 /* Get the name of the frame to use for resource lookup. */
12771 name = w32_get_arg (parms, Qname, "name", "Name", RES_TYPE_STRING);
12772 if (!STRINGP (name)
12773 && !EQ (name, Qunbound)
12774 && !NILP (name))
12775 error ("Invalid frame name--not a string or nil");
12776 Vx_resource_name = name;
12778 frame = Qnil;
12779 GCPRO3 (parms, name, frame);
12780 /* Make a frame without minibuffer nor mode-line. */
12781 f = make_frame (0);
12782 f->wants_modeline = 0;
12783 XSETFRAME (frame, f);
12785 buffer = Fget_buffer_create (build_string (" *tip*"));
12786 Fset_window_buffer (FRAME_ROOT_WINDOW (f), buffer, Qnil);
12787 old_buffer = current_buffer;
12788 set_buffer_internal_1 (XBUFFER (buffer));
12789 current_buffer->truncate_lines = Qnil;
12790 Ferase_buffer ();
12791 Finsert (1, &text);
12792 set_buffer_internal_1 (old_buffer);
12794 FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
12795 record_unwind_protect (unwind_create_tip_frame, frame);
12797 /* By setting the output method, we're essentially saying that
12798 the frame is live, as per FRAME_LIVE_P. If we get a signal
12799 from this point on, x_destroy_window might screw up reference
12800 counts etc. */
12801 f->output_method = output_w32;
12802 f->output_data.w32 =
12803 (struct w32_output *) xmalloc (sizeof (struct w32_output));
12804 bzero (f->output_data.w32, sizeof (struct w32_output));
12806 FRAME_FONTSET (f) = -1;
12807 f->icon_name = Qnil;
12809 #if 0 /* GLYPH_DEBUG TODO: image support. */
12810 image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
12811 dpyinfo_refcount = dpyinfo->reference_count;
12812 #endif /* GLYPH_DEBUG */
12813 #ifdef MULTI_KBOARD
12814 FRAME_KBOARD (f) = kb;
12815 #endif
12816 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
12817 f->output_data.w32->explicit_parent = 0;
12819 /* Set the name; the functions to which we pass f expect the name to
12820 be set. */
12821 if (EQ (name, Qunbound) || NILP (name))
12823 f->name = build_string (dpyinfo->w32_id_name);
12824 f->explicit_name = 0;
12826 else
12828 f->name = name;
12829 f->explicit_name = 1;
12830 /* use the frame's title when getting resources for this frame. */
12831 specbind (Qx_resource_name, name);
12834 /* Extract the window parameters from the supplied values
12835 that are needed to determine window geometry. */
12837 Lisp_Object font;
12839 font = w32_get_arg (parms, Qfont, "font", "Font", RES_TYPE_STRING);
12841 BLOCK_INPUT;
12842 /* First, try whatever font the caller has specified. */
12843 if (STRINGP (font))
12845 tem = Fquery_fontset (font, Qnil);
12846 if (STRINGP (tem))
12847 font = x_new_fontset (f, SDATA (tem));
12848 else
12849 font = x_new_font (f, SDATA (font));
12852 /* Try out a font which we hope has bold and italic variations. */
12853 if (!STRINGP (font))
12854 font = x_new_font (f, "-*-Courier New-normal-r-*-*-*-100-*-*-c-*-iso8859-1");
12855 if (! STRINGP (font))
12856 font = x_new_font (f, "-*-Courier-normal-r-*-*-13-*-*-*-c-*-iso8859-1");
12857 /* If those didn't work, look for something which will at least work. */
12858 if (! STRINGP (font))
12859 font = x_new_font (f, "-*-Fixedsys-normal-r-*-*-12-*-*-*-c-*-iso8859-1");
12860 UNBLOCK_INPUT;
12861 if (! STRINGP (font))
12862 font = build_string ("Fixedsys");
12864 x_default_parameter (f, parms, Qfont, font,
12865 "font", "Font", RES_TYPE_STRING);
12868 x_default_parameter (f, parms, Qborder_width, make_number (2),
12869 "borderWidth", "BorderWidth", RES_TYPE_NUMBER);
12870 /* This defaults to 2 in order to match xterm. We recognize either
12871 internalBorderWidth or internalBorder (which is what xterm calls
12872 it). */
12873 if (NILP (Fassq (Qinternal_border_width, parms)))
12875 Lisp_Object value;
12877 value = w32_get_arg (parms, Qinternal_border_width,
12878 "internalBorder", "internalBorder", RES_TYPE_NUMBER);
12879 if (! EQ (value, Qunbound))
12880 parms = Fcons (Fcons (Qinternal_border_width, value),
12881 parms);
12883 x_default_parameter (f, parms, Qinternal_border_width, make_number (1),
12884 "internalBorderWidth", "internalBorderWidth",
12885 RES_TYPE_NUMBER);
12887 /* Also do the stuff which must be set before the window exists. */
12888 x_default_parameter (f, parms, Qforeground_color, build_string ("black"),
12889 "foreground", "Foreground", RES_TYPE_STRING);
12890 x_default_parameter (f, parms, Qbackground_color, build_string ("white"),
12891 "background", "Background", RES_TYPE_STRING);
12892 x_default_parameter (f, parms, Qmouse_color, build_string ("black"),
12893 "pointerColor", "Foreground", RES_TYPE_STRING);
12894 x_default_parameter (f, parms, Qcursor_color, build_string ("black"),
12895 "cursorColor", "Foreground", RES_TYPE_STRING);
12896 x_default_parameter (f, parms, Qborder_color, build_string ("black"),
12897 "borderColor", "BorderColor", RES_TYPE_STRING);
12899 /* Init faces before x_default_parameter is called for scroll-bar
12900 parameters because that function calls x_set_scroll_bar_width,
12901 which calls change_frame_size, which calls Fset_window_buffer,
12902 which runs hooks, which call Fvertical_motion. At the end, we
12903 end up in init_iterator with a null face cache, which should not
12904 happen. */
12905 init_frame_faces (f);
12907 f->output_data.w32->dwStyle = WS_BORDER | WS_POPUP | WS_DISABLED;
12908 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
12910 window_prompting = x_figure_window_size (f, parms, 0);
12912 /* No fringes on tip frame. */
12913 f->fringe_cols = 0;
12914 f->left_fringe_width = 0;
12915 f->right_fringe_width = 0;
12917 BLOCK_INPUT;
12918 my_create_tip_window (f);
12919 UNBLOCK_INPUT;
12921 x_make_gc (f);
12923 x_default_parameter (f, parms, Qauto_raise, Qnil,
12924 "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN);
12925 x_default_parameter (f, parms, Qauto_lower, Qnil,
12926 "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN);
12927 x_default_parameter (f, parms, Qcursor_type, Qbox,
12928 "cursorType", "CursorType", RES_TYPE_SYMBOL);
12930 /* Dimensions, especially FRAME_LINES (f), must be done via change_frame_size.
12931 Change will not be effected unless different from the current
12932 FRAME_LINES (f). */
12933 width = FRAME_COLS (f);
12934 height = FRAME_LINES (f);
12935 FRAME_LINES (f) = 0;
12936 SET_FRAME_COLS (f, 0);
12937 change_frame_size (f, height, width, 1, 0, 0);
12939 /* Add `tooltip' frame parameter's default value. */
12940 if (NILP (Fframe_parameter (frame, intern ("tooltip"))))
12941 Fmodify_frame_parameters (frame, Fcons (Fcons (intern ("tooltip"), Qt),
12942 Qnil));
12944 /* Set up faces after all frame parameters are known. This call
12945 also merges in face attributes specified for new frames.
12947 Frame parameters may be changed if .Xdefaults contains
12948 specifications for the default font. For example, if there is an
12949 `Emacs.default.attributeBackground: pink', the `background-color'
12950 attribute of the frame get's set, which let's the internal border
12951 of the tooltip frame appear in pink. Prevent this. */
12953 Lisp_Object bg = Fframe_parameter (frame, Qbackground_color);
12955 /* Set tip_frame here, so that */
12956 tip_frame = frame;
12957 call1 (Qface_set_after_frame_default, frame);
12959 if (!EQ (bg, Fframe_parameter (frame, Qbackground_color)))
12960 Fmodify_frame_parameters (frame, Fcons (Fcons (Qbackground_color, bg),
12961 Qnil));
12964 f->no_split = 1;
12966 UNGCPRO;
12968 /* It is now ok to make the frame official even if we get an error
12969 below. And the frame needs to be on Vframe_list or making it
12970 visible won't work. */
12971 Vframe_list = Fcons (frame, Vframe_list);
12973 /* Now that the frame is official, it counts as a reference to
12974 its display. */
12975 FRAME_W32_DISPLAY_INFO (f)->reference_count++;
12977 /* Setting attributes of faces of the tooltip frame from resources
12978 and similar will increment face_change_count, which leads to the
12979 clearing of all current matrices. Since this isn't necessary
12980 here, avoid it by resetting face_change_count to the value it
12981 had before we created the tip frame. */
12982 face_change_count = face_change_count_before;
12984 /* Discard the unwind_protect. */
12985 return unbind_to (count, frame);
12989 /* Compute where to display tip frame F. PARMS is the list of frame
12990 parameters for F. DX and DY are specified offsets from the current
12991 location of the mouse. WIDTH and HEIGHT are the width and height
12992 of the tooltip. Return coordinates relative to the root window of
12993 the display in *ROOT_X, and *ROOT_Y. */
12995 static void
12996 compute_tip_xy (f, parms, dx, dy, width, height, root_x, root_y)
12997 struct frame *f;
12998 Lisp_Object parms, dx, dy;
12999 int width, height;
13000 int *root_x, *root_y;
13002 Lisp_Object left, top;
13004 /* User-specified position? */
13005 left = Fcdr (Fassq (Qleft, parms));
13006 top = Fcdr (Fassq (Qtop, parms));
13008 /* Move the tooltip window where the mouse pointer is. Resize and
13009 show it. */
13010 if (!INTEGERP (left) || !INTEGERP (top))
13012 POINT pt;
13014 BLOCK_INPUT;
13015 GetCursorPos (&pt);
13016 *root_x = pt.x;
13017 *root_y = pt.y;
13018 UNBLOCK_INPUT;
13021 if (INTEGERP (top))
13022 *root_y = XINT (top);
13023 else if (*root_y + XINT (dy) - height < 0)
13024 *root_y -= XINT (dy);
13025 else
13027 *root_y -= height;
13028 *root_y += XINT (dy);
13031 if (INTEGERP (left))
13032 *root_x = XINT (left);
13033 else if (*root_x + XINT (dx) + width <= FRAME_W32_DISPLAY_INFO (f)->width)
13034 /* It fits to the right of the pointer. */
13035 *root_x += XINT (dx);
13036 else if (width + XINT (dx) <= *root_x)
13037 /* It fits to the left of the pointer. */
13038 *root_x -= width + XINT (dx);
13039 else
13040 /* Put it left justified on the screen -- it ought to fit that way. */
13041 *root_x = 0;
13045 DEFUN ("x-show-tip", Fx_show_tip, Sx_show_tip, 1, 6, 0,
13046 doc: /* Show STRING in a \"tooltip\" window on frame FRAME.
13047 A tooltip window is a small window displaying a string.
13049 FRAME nil or omitted means use the selected frame.
13051 PARMS is an optional list of frame parameters which can be
13052 used to change the tooltip's appearance.
13054 Automatically hide the tooltip after TIMEOUT seconds. TIMEOUT nil
13055 means use the default timeout of 5 seconds.
13057 If the list of frame parameters PARAMS contains a `left' parameter,
13058 the tooltip is displayed at that x-position. Otherwise it is
13059 displayed at the mouse position, with offset DX added (default is 5 if
13060 DX isn't specified). Likewise for the y-position; if a `top' frame
13061 parameter is specified, it determines the y-position of the tooltip
13062 window, otherwise it is displayed at the mouse position, with offset
13063 DY added (default is -10).
13065 A tooltip's maximum size is specified by `x-max-tooltip-size'.
13066 Text larger than the specified size is clipped. */)
13067 (string, frame, parms, timeout, dx, dy)
13068 Lisp_Object string, frame, parms, timeout, dx, dy;
13070 struct frame *f;
13071 struct window *w;
13072 int root_x, root_y;
13073 struct buffer *old_buffer;
13074 struct text_pos pos;
13075 int i, width, height;
13076 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
13077 int old_windows_or_buffers_changed = windows_or_buffers_changed;
13078 int count = SPECPDL_INDEX ();
13080 specbind (Qinhibit_redisplay, Qt);
13082 GCPRO4 (string, parms, frame, timeout);
13084 CHECK_STRING (string);
13085 f = check_x_frame (frame);
13086 if (NILP (timeout))
13087 timeout = make_number (5);
13088 else
13089 CHECK_NATNUM (timeout);
13091 if (NILP (dx))
13092 dx = make_number (5);
13093 else
13094 CHECK_NUMBER (dx);
13096 if (NILP (dy))
13097 dy = make_number (-10);
13098 else
13099 CHECK_NUMBER (dy);
13101 if (NILP (last_show_tip_args))
13102 last_show_tip_args = Fmake_vector (make_number (3), Qnil);
13104 if (!NILP (tip_frame))
13106 Lisp_Object last_string = AREF (last_show_tip_args, 0);
13107 Lisp_Object last_frame = AREF (last_show_tip_args, 1);
13108 Lisp_Object last_parms = AREF (last_show_tip_args, 2);
13110 if (EQ (frame, last_frame)
13111 && !NILP (Fequal (last_string, string))
13112 && !NILP (Fequal (last_parms, parms)))
13114 struct frame *f = XFRAME (tip_frame);
13116 /* Only DX and DY have changed. */
13117 if (!NILP (tip_timer))
13119 Lisp_Object timer = tip_timer;
13120 tip_timer = Qnil;
13121 call1 (Qcancel_timer, timer);
13124 BLOCK_INPUT;
13125 compute_tip_xy (f, parms, dx, dy, FRAME_PIXEL_WIDTH (f),
13126 FRAME_PIXEL_HEIGHT (f), &root_x, &root_y);
13128 /* Put tooltip in topmost group and in position. */
13129 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
13130 root_x, root_y, 0, 0,
13131 SWP_NOSIZE | SWP_NOACTIVATE);
13133 /* Ensure tooltip is on top of other topmost windows (eg menus). */
13134 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
13135 0, 0, 0, 0,
13136 SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
13138 UNBLOCK_INPUT;
13139 goto start_timer;
13143 /* Hide a previous tip, if any. */
13144 Fx_hide_tip ();
13146 ASET (last_show_tip_args, 0, string);
13147 ASET (last_show_tip_args, 1, frame);
13148 ASET (last_show_tip_args, 2, parms);
13150 /* Add default values to frame parameters. */
13151 if (NILP (Fassq (Qname, parms)))
13152 parms = Fcons (Fcons (Qname, build_string ("tooltip")), parms);
13153 if (NILP (Fassq (Qinternal_border_width, parms)))
13154 parms = Fcons (Fcons (Qinternal_border_width, make_number (3)), parms);
13155 if (NILP (Fassq (Qborder_width, parms)))
13156 parms = Fcons (Fcons (Qborder_width, make_number (1)), parms);
13157 if (NILP (Fassq (Qborder_color, parms)))
13158 parms = Fcons (Fcons (Qborder_color, build_string ("lightyellow")), parms);
13159 if (NILP (Fassq (Qbackground_color, parms)))
13160 parms = Fcons (Fcons (Qbackground_color, build_string ("lightyellow")),
13161 parms);
13163 /* Block input until the tip has been fully drawn, to avoid crashes
13164 when drawing tips in menus. */
13165 BLOCK_INPUT;
13167 /* Create a frame for the tooltip, and record it in the global
13168 variable tip_frame. */
13169 frame = x_create_tip_frame (FRAME_W32_DISPLAY_INFO (f), parms, string);
13170 f = XFRAME (frame);
13172 /* Set up the frame's root window. */
13173 w = XWINDOW (FRAME_ROOT_WINDOW (f));
13174 w->left_col = w->top_line = make_number (0);
13176 if (CONSP (Vx_max_tooltip_size)
13177 && INTEGERP (XCAR (Vx_max_tooltip_size))
13178 && XINT (XCAR (Vx_max_tooltip_size)) > 0
13179 && INTEGERP (XCDR (Vx_max_tooltip_size))
13180 && XINT (XCDR (Vx_max_tooltip_size)) > 0)
13182 w->total_cols = XCAR (Vx_max_tooltip_size);
13183 w->total_lines = XCDR (Vx_max_tooltip_size);
13185 else
13187 w->total_cols = make_number (80);
13188 w->total_lines = make_number (40);
13191 FRAME_TOTAL_COLS (f) = XINT (w->total_cols);
13192 adjust_glyphs (f);
13193 w->pseudo_window_p = 1;
13195 /* Display the tooltip text in a temporary buffer. */
13196 old_buffer = current_buffer;
13197 set_buffer_internal_1 (XBUFFER (XWINDOW (FRAME_ROOT_WINDOW (f))->buffer));
13198 current_buffer->truncate_lines = Qnil;
13199 clear_glyph_matrix (w->desired_matrix);
13200 clear_glyph_matrix (w->current_matrix);
13201 SET_TEXT_POS (pos, BEGV, BEGV_BYTE);
13202 try_window (FRAME_ROOT_WINDOW (f), pos);
13204 /* Compute width and height of the tooltip. */
13205 width = height = 0;
13206 for (i = 0; i < w->desired_matrix->nrows; ++i)
13208 struct glyph_row *row = &w->desired_matrix->rows[i];
13209 struct glyph *last;
13210 int row_width;
13212 /* Stop at the first empty row at the end. */
13213 if (!row->enabled_p || !row->displays_text_p)
13214 break;
13216 /* Let the row go over the full width of the frame. */
13217 row->full_width_p = 1;
13219 #ifdef TODO /* Investigate why some fonts need more width than is
13220 calculated for some tooltips. */
13221 /* There's a glyph at the end of rows that is use to place
13222 the cursor there. Don't include the width of this glyph. */
13223 if (row->used[TEXT_AREA])
13225 last = &row->glyphs[TEXT_AREA][row->used[TEXT_AREA] - 1];
13226 row_width = row->pixel_width - last->pixel_width;
13228 else
13229 #endif
13230 row_width = row->pixel_width;
13232 /* TODO: find why tips do not draw along baseline as instructed. */
13233 height += row->height;
13234 width = max (width, row_width);
13237 /* Add the frame's internal border to the width and height the X
13238 window should have. */
13239 height += 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
13240 width += 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
13242 /* Move the tooltip window where the mouse pointer is. Resize and
13243 show it. */
13244 compute_tip_xy (f, parms, dx, dy, width, height, &root_x, &root_y);
13247 /* Adjust Window size to take border into account. */
13248 RECT rect;
13249 rect.left = rect.top = 0;
13250 rect.right = width;
13251 rect.bottom = height;
13252 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
13253 FRAME_EXTERNAL_MENU_BAR (f));
13255 /* Position and size tooltip, and put it in the topmost group. */
13256 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
13257 root_x, root_y, rect.right - rect.left,
13258 rect.bottom - rect.top, SWP_NOACTIVATE);
13260 /* Ensure tooltip is on top of other topmost windows (eg menus). */
13261 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
13262 0, 0, 0, 0,
13263 SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
13265 /* Let redisplay know that we have made the frame visible already. */
13266 f->async_visible = 1;
13268 ShowWindow (FRAME_W32_WINDOW (f), SW_SHOWNOACTIVATE);
13271 /* Draw into the window. */
13272 w->must_be_updated_p = 1;
13273 update_single_window (w, 1);
13275 UNBLOCK_INPUT;
13277 /* Restore original current buffer. */
13278 set_buffer_internal_1 (old_buffer);
13279 windows_or_buffers_changed = old_windows_or_buffers_changed;
13281 start_timer:
13282 /* Let the tip disappear after timeout seconds. */
13283 tip_timer = call3 (intern ("run-at-time"), timeout, Qnil,
13284 intern ("x-hide-tip"));
13286 UNGCPRO;
13287 return unbind_to (count, Qnil);
13291 DEFUN ("x-hide-tip", Fx_hide_tip, Sx_hide_tip, 0, 0, 0,
13292 doc: /* Hide the current tooltip window, if there is any.
13293 Value is t if tooltip was open, nil otherwise. */)
13296 int count;
13297 Lisp_Object deleted, frame, timer;
13298 struct gcpro gcpro1, gcpro2;
13300 /* Return quickly if nothing to do. */
13301 if (NILP (tip_timer) && NILP (tip_frame))
13302 return Qnil;
13304 frame = tip_frame;
13305 timer = tip_timer;
13306 GCPRO2 (frame, timer);
13307 tip_frame = tip_timer = deleted = Qnil;
13309 count = SPECPDL_INDEX ();
13310 specbind (Qinhibit_redisplay, Qt);
13311 specbind (Qinhibit_quit, Qt);
13313 if (!NILP (timer))
13314 call1 (Qcancel_timer, timer);
13316 if (FRAMEP (frame))
13318 Fdelete_frame (frame, Qnil);
13319 deleted = Qt;
13322 UNGCPRO;
13323 return unbind_to (count, deleted);
13328 /***********************************************************************
13329 File selection dialog
13330 ***********************************************************************/
13331 extern Lisp_Object Qfile_name_history;
13333 /* Callback for altering the behaviour of the Open File dialog.
13334 Makes the Filename text field contain "Current Directory" and be
13335 read-only when "Directories" is selected in the filter. This
13336 allows us to work around the fact that the standard Open File
13337 dialog does not support directories. */
13338 UINT CALLBACK
13339 file_dialog_callback (hwnd, msg, wParam, lParam)
13340 HWND hwnd;
13341 UINT msg;
13342 WPARAM wParam;
13343 LPARAM lParam;
13345 if (msg == WM_NOTIFY)
13347 OFNOTIFY * notify = (OFNOTIFY *)lParam;
13348 /* Detect when the Filter dropdown is changed. */
13349 if (notify->hdr.code == CDN_TYPECHANGE)
13351 HWND dialog = GetParent (hwnd);
13352 HWND edit_control = GetDlgItem (dialog, FILE_NAME_TEXT_FIELD);
13354 /* Directories is in index 2. */
13355 if (notify->lpOFN->nFilterIndex == 2)
13357 CommDlg_OpenSave_SetControlText (dialog, FILE_NAME_TEXT_FIELD,
13358 "Current Directory");
13359 EnableWindow (edit_control, FALSE);
13361 else
13363 CommDlg_OpenSave_SetControlText (dialog, FILE_NAME_TEXT_FIELD,
13364 "");
13365 EnableWindow (edit_control, TRUE);
13369 return 0;
13372 DEFUN ("x-file-dialog", Fx_file_dialog, Sx_file_dialog, 2, 4, 0,
13373 doc: /* Read file name, prompting with PROMPT in directory DIR.
13374 Use a file selection dialog.
13375 Select DEFAULT-FILENAME in the dialog's file selection box, if
13376 specified. Ensure that file exists if MUSTMATCH is non-nil. */)
13377 (prompt, dir, default_filename, mustmatch)
13378 Lisp_Object prompt, dir, default_filename, mustmatch;
13380 struct frame *f = SELECTED_FRAME ();
13381 Lisp_Object file = Qnil;
13382 int count = SPECPDL_INDEX ();
13383 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
13384 char filename[MAX_PATH + 1];
13385 char init_dir[MAX_PATH + 1];
13387 GCPRO5 (prompt, dir, default_filename, mustmatch, file);
13388 CHECK_STRING (prompt);
13389 CHECK_STRING (dir);
13391 /* Create the dialog with PROMPT as title, using DIR as initial
13392 directory and using "*" as pattern. */
13393 dir = Fexpand_file_name (dir, Qnil);
13394 strncpy (init_dir, SDATA (dir), MAX_PATH);
13395 init_dir[MAX_PATH] = '\0';
13396 unixtodos_filename (init_dir);
13398 if (STRINGP (default_filename))
13400 char *file_name_only;
13401 char *full_path_name = SDATA (default_filename);
13403 unixtodos_filename (full_path_name);
13405 file_name_only = strrchr (full_path_name, '\\');
13406 if (!file_name_only)
13407 file_name_only = full_path_name;
13408 else
13410 file_name_only++;
13413 strncpy (filename, file_name_only, MAX_PATH);
13414 filename[MAX_PATH] = '\0';
13416 else
13417 filename[0] = '\0';
13420 OPENFILENAME file_details;
13422 /* Prevent redisplay. */
13423 specbind (Qinhibit_redisplay, Qt);
13424 BLOCK_INPUT;
13426 bzero (&file_details, sizeof (file_details));
13427 file_details.lStructSize = sizeof (file_details);
13428 file_details.hwndOwner = FRAME_W32_WINDOW (f);
13429 /* Undocumented Bug in Common File Dialog:
13430 If a filter is not specified, shell links are not resolved. */
13431 file_details.lpstrFilter = "All Files (*.*)\0*.*\0Directories\0*|*\0\0";
13432 file_details.lpstrFile = filename;
13433 file_details.nMaxFile = sizeof (filename);
13434 file_details.lpstrInitialDir = init_dir;
13435 file_details.lpstrTitle = SDATA (prompt);
13436 file_details.Flags = (OFN_HIDEREADONLY | OFN_NOCHANGEDIR
13437 | OFN_EXPLORER | OFN_ENABLEHOOK);
13438 if (!NILP (mustmatch))
13439 file_details.Flags |= OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST;
13441 file_details.lpfnHook = (LPOFNHOOKPROC) file_dialog_callback;
13443 if (GetOpenFileName (&file_details))
13445 dostounix_filename (filename);
13446 if (file_details.nFilterIndex == 2)
13448 /* "Folder Only" selected - strip dummy file name. */
13449 char * last = strrchr (filename, '/');
13450 *last = '\0';
13453 file = DECODE_FILE(build_string (filename));
13455 /* User cancelled the dialog without making a selection. */
13456 else if (!CommDlgExtendedError ())
13457 file = Qnil;
13458 /* An error occurred, fallback on reading from the mini-buffer. */
13459 else
13460 file = Fcompleting_read (prompt, intern ("read-file-name-internal"),
13461 dir, mustmatch, dir, Qfile_name_history,
13462 default_filename, Qnil);
13464 UNBLOCK_INPUT;
13465 file = unbind_to (count, file);
13468 UNGCPRO;
13470 /* Make "Cancel" equivalent to C-g. */
13471 if (NILP (file))
13472 Fsignal (Qquit, Qnil);
13474 return unbind_to (count, file);
13479 /***********************************************************************
13480 w32 specialized functions
13481 ***********************************************************************/
13483 DEFUN ("w32-select-font", Fw32_select_font, Sw32_select_font, 0, 2, 0,
13484 doc: /* Select a font using the W32 font dialog.
13485 Returns an X font string corresponding to the selection. */)
13486 (frame, include_proportional)
13487 Lisp_Object frame, include_proportional;
13489 FRAME_PTR f = check_x_frame (frame);
13490 CHOOSEFONT cf;
13491 LOGFONT lf;
13492 TEXTMETRIC tm;
13493 HDC hdc;
13494 HANDLE oldobj;
13495 char buf[100];
13497 bzero (&cf, sizeof (cf));
13498 bzero (&lf, sizeof (lf));
13500 cf.lStructSize = sizeof (cf);
13501 cf.hwndOwner = FRAME_W32_WINDOW (f);
13502 cf.Flags = CF_FORCEFONTEXIST | CF_SCREENFONTS | CF_NOVERTFONTS;
13504 /* Unless include_proportional is non-nil, limit the selection to
13505 monospaced fonts. */
13506 if (NILP (include_proportional))
13507 cf.Flags |= CF_FIXEDPITCHONLY;
13509 cf.lpLogFont = &lf;
13511 /* Initialize as much of the font details as we can from the current
13512 default font. */
13513 hdc = GetDC (FRAME_W32_WINDOW (f));
13514 oldobj = SelectObject (hdc, FRAME_FONT (f)->hfont);
13515 GetTextFace (hdc, LF_FACESIZE, lf.lfFaceName);
13516 if (GetTextMetrics (hdc, &tm))
13518 lf.lfHeight = tm.tmInternalLeading - tm.tmHeight;
13519 lf.lfWeight = tm.tmWeight;
13520 lf.lfItalic = tm.tmItalic;
13521 lf.lfUnderline = tm.tmUnderlined;
13522 lf.lfStrikeOut = tm.tmStruckOut;
13523 lf.lfCharSet = tm.tmCharSet;
13524 cf.Flags |= CF_INITTOLOGFONTSTRUCT;
13526 SelectObject (hdc, oldobj);
13527 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
13529 if (!ChooseFont (&cf) || !w32_to_x_font (&lf, buf, 100, NULL))
13530 return Qnil;
13532 return build_string (buf);
13535 DEFUN ("w32-send-sys-command", Fw32_send_sys_command,
13536 Sw32_send_sys_command, 1, 2, 0,
13537 doc: /* Send frame a Windows WM_SYSCOMMAND message of type COMMAND.
13538 Some useful values for command are #xf030 to maximise frame (#xf020
13539 to minimize), #xf120 to restore frame to original size, and #xf100
13540 to activate the menubar for keyboard access. #xf140 activates the
13541 screen saver if defined.
13543 If optional parameter FRAME is not specified, use selected frame. */)
13544 (command, frame)
13545 Lisp_Object command, frame;
13547 FRAME_PTR f = check_x_frame (frame);
13549 CHECK_NUMBER (command);
13551 PostMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, XINT (command), 0);
13553 return Qnil;
13556 DEFUN ("w32-shell-execute", Fw32_shell_execute, Sw32_shell_execute, 2, 4, 0,
13557 doc: /* Get Windows to perform OPERATION on DOCUMENT.
13558 This is a wrapper around the ShellExecute system function, which
13559 invokes the application registered to handle OPERATION for DOCUMENT.
13560 OPERATION is typically \"open\", \"print\" or \"explore\" (but can be
13561 nil for the default action), and DOCUMENT is typically the name of a
13562 document file or URL, but can also be a program executable to run or
13563 a directory to open in the Windows Explorer.
13565 If DOCUMENT is a program executable, PARAMETERS can be a string
13566 containing command line parameters, but otherwise should be nil.
13568 SHOW-FLAG can be used to control whether the invoked application is hidden
13569 or minimized. If SHOW-FLAG is nil, the application is displayed normally,
13570 otherwise it is an integer representing a ShowWindow flag:
13572 0 - start hidden
13573 1 - start normally
13574 3 - start maximized
13575 6 - start minimized */)
13576 (operation, document, parameters, show_flag)
13577 Lisp_Object operation, document, parameters, show_flag;
13579 Lisp_Object current_dir;
13581 CHECK_STRING (document);
13583 /* Encode filename and current directory. */
13584 current_dir = ENCODE_FILE (current_buffer->directory);
13585 document = ENCODE_FILE (document);
13586 if ((int) ShellExecute (NULL,
13587 (STRINGP (operation) ?
13588 SDATA (operation) : NULL),
13589 SDATA (document),
13590 (STRINGP (parameters) ?
13591 SDATA (parameters) : NULL),
13592 SDATA (current_dir),
13593 (INTEGERP (show_flag) ?
13594 XINT (show_flag) : SW_SHOWDEFAULT))
13595 > 32)
13596 return Qt;
13597 error ("ShellExecute failed: %s", w32_strerror (0));
13600 /* Lookup virtual keycode from string representing the name of a
13601 non-ascii keystroke into the corresponding virtual key, using
13602 lispy_function_keys. */
13603 static int
13604 lookup_vk_code (char *key)
13606 int i;
13608 for (i = 0; i < 256; i++)
13609 if (lispy_function_keys[i] != 0
13610 && strcmp (lispy_function_keys[i], key) == 0)
13611 return i;
13613 return -1;
13616 /* Convert a one-element vector style key sequence to a hot key
13617 definition. */
13618 static int
13619 w32_parse_hot_key (key)
13620 Lisp_Object key;
13622 /* Copied from Fdefine_key and store_in_keymap. */
13623 register Lisp_Object c;
13624 int vk_code;
13625 int lisp_modifiers;
13626 int w32_modifiers;
13627 struct gcpro gcpro1;
13629 CHECK_VECTOR (key);
13631 if (XFASTINT (Flength (key)) != 1)
13632 return Qnil;
13634 GCPRO1 (key);
13636 c = Faref (key, make_number (0));
13638 if (CONSP (c) && lucid_event_type_list_p (c))
13639 c = Fevent_convert_list (c);
13641 UNGCPRO;
13643 if (! INTEGERP (c) && ! SYMBOLP (c))
13644 error ("Key definition is invalid");
13646 /* Work out the base key and the modifiers. */
13647 if (SYMBOLP (c))
13649 c = parse_modifiers (c);
13650 lisp_modifiers = Fcar (Fcdr (c));
13651 c = Fcar (c);
13652 if (!SYMBOLP (c))
13653 abort ();
13654 vk_code = lookup_vk_code (SDATA (SYMBOL_NAME (c)));
13656 else if (INTEGERP (c))
13658 lisp_modifiers = XINT (c) & ~CHARACTERBITS;
13659 /* Many ascii characters are their own virtual key code. */
13660 vk_code = XINT (c) & CHARACTERBITS;
13663 if (vk_code < 0 || vk_code > 255)
13664 return Qnil;
13666 if ((lisp_modifiers & meta_modifier) != 0
13667 && !NILP (Vw32_alt_is_meta))
13668 lisp_modifiers |= alt_modifier;
13670 /* Supply defs missing from mingw32. */
13671 #ifndef MOD_ALT
13672 #define MOD_ALT 0x0001
13673 #define MOD_CONTROL 0x0002
13674 #define MOD_SHIFT 0x0004
13675 #define MOD_WIN 0x0008
13676 #endif
13678 /* Convert lisp modifiers to Windows hot-key form. */
13679 w32_modifiers = (lisp_modifiers & hyper_modifier) ? MOD_WIN : 0;
13680 w32_modifiers |= (lisp_modifiers & alt_modifier) ? MOD_ALT : 0;
13681 w32_modifiers |= (lisp_modifiers & ctrl_modifier) ? MOD_CONTROL : 0;
13682 w32_modifiers |= (lisp_modifiers & shift_modifier) ? MOD_SHIFT : 0;
13684 return HOTKEY (vk_code, w32_modifiers);
13687 DEFUN ("w32-register-hot-key", Fw32_register_hot_key,
13688 Sw32_register_hot_key, 1, 1, 0,
13689 doc: /* Register KEY as a hot-key combination.
13690 Certain key combinations like Alt-Tab are reserved for system use on
13691 Windows, and therefore are normally intercepted by the system. However,
13692 most of these key combinations can be received by registering them as
13693 hot-keys, overriding their special meaning.
13695 KEY must be a one element key definition in vector form that would be
13696 acceptable to `define-key' (e.g. [A-tab] for Alt-Tab). The meta
13697 modifier is interpreted as Alt if `w32-alt-is-meta' is t, and hyper
13698 is always interpreted as the Windows modifier keys.
13700 The return value is the hotkey-id if registered, otherwise nil. */)
13701 (key)
13702 Lisp_Object key;
13704 key = w32_parse_hot_key (key);
13706 if (NILP (Fmemq (key, w32_grabbed_keys)))
13708 /* Reuse an empty slot if possible. */
13709 Lisp_Object item = Fmemq (Qnil, w32_grabbed_keys);
13711 /* Safe to add new key to list, even if we have focus. */
13712 if (NILP (item))
13713 w32_grabbed_keys = Fcons (key, w32_grabbed_keys);
13714 else
13715 XSETCAR (item, key);
13717 /* Notify input thread about new hot-key definition, so that it
13718 takes effect without needing to switch focus. */
13719 PostThreadMessage (dwWindowsThreadId, WM_EMACS_REGISTER_HOT_KEY,
13720 (WPARAM) key, 0);
13723 return key;
13726 DEFUN ("w32-unregister-hot-key", Fw32_unregister_hot_key,
13727 Sw32_unregister_hot_key, 1, 1, 0,
13728 doc: /* Unregister HOTKEY as a hot-key combination. */)
13729 (key)
13730 Lisp_Object key;
13732 Lisp_Object item;
13734 if (!INTEGERP (key))
13735 key = w32_parse_hot_key (key);
13737 item = Fmemq (key, w32_grabbed_keys);
13739 if (!NILP (item))
13741 /* Notify input thread about hot-key definition being removed, so
13742 that it takes effect without needing focus switch. */
13743 if (PostThreadMessage (dwWindowsThreadId, WM_EMACS_UNREGISTER_HOT_KEY,
13744 (WPARAM) XINT (XCAR (item)), (LPARAM) item))
13746 MSG msg;
13747 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
13749 return Qt;
13751 return Qnil;
13754 DEFUN ("w32-registered-hot-keys", Fw32_registered_hot_keys,
13755 Sw32_registered_hot_keys, 0, 0, 0,
13756 doc: /* Return list of registered hot-key IDs. */)
13759 return Fcopy_sequence (w32_grabbed_keys);
13762 DEFUN ("w32-reconstruct-hot-key", Fw32_reconstruct_hot_key,
13763 Sw32_reconstruct_hot_key, 1, 1, 0,
13764 doc: /* Convert hot-key ID to a lisp key combination. */)
13765 (hotkeyid)
13766 Lisp_Object hotkeyid;
13768 int vk_code, w32_modifiers;
13769 Lisp_Object key;
13771 CHECK_NUMBER (hotkeyid);
13773 vk_code = HOTKEY_VK_CODE (hotkeyid);
13774 w32_modifiers = HOTKEY_MODIFIERS (hotkeyid);
13776 if (lispy_function_keys[vk_code])
13777 key = intern (lispy_function_keys[vk_code]);
13778 else
13779 key = make_number (vk_code);
13781 key = Fcons (key, Qnil);
13782 if (w32_modifiers & MOD_SHIFT)
13783 key = Fcons (Qshift, key);
13784 if (w32_modifiers & MOD_CONTROL)
13785 key = Fcons (Qctrl, key);
13786 if (w32_modifiers & MOD_ALT)
13787 key = Fcons (NILP (Vw32_alt_is_meta) ? Qalt : Qmeta, key);
13788 if (w32_modifiers & MOD_WIN)
13789 key = Fcons (Qhyper, key);
13791 return key;
13794 DEFUN ("w32-toggle-lock-key", Fw32_toggle_lock_key,
13795 Sw32_toggle_lock_key, 1, 2, 0,
13796 doc: /* Toggle the state of the lock key KEY.
13797 KEY can be `capslock', `kp-numlock', or `scroll'.
13798 If the optional parameter NEW-STATE is a number, then the state of KEY
13799 is set to off if the low bit of NEW-STATE is zero, otherwise on. */)
13800 (key, new_state)
13801 Lisp_Object key, new_state;
13803 int vk_code;
13805 if (EQ (key, intern ("capslock")))
13806 vk_code = VK_CAPITAL;
13807 else if (EQ (key, intern ("kp-numlock")))
13808 vk_code = VK_NUMLOCK;
13809 else if (EQ (key, intern ("scroll")))
13810 vk_code = VK_SCROLL;
13811 else
13812 return Qnil;
13814 if (!dwWindowsThreadId)
13815 return make_number (w32_console_toggle_lock_key (vk_code, new_state));
13817 if (PostThreadMessage (dwWindowsThreadId, WM_EMACS_TOGGLE_LOCK_KEY,
13818 (WPARAM) vk_code, (LPARAM) new_state))
13820 MSG msg;
13821 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
13822 return make_number (msg.wParam);
13824 return Qnil;
13827 DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0,
13828 doc: /* Return storage information about the file system FILENAME is on.
13829 Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total
13830 storage of the file system, FREE is the free storage, and AVAIL is the
13831 storage available to a non-superuser. All 3 numbers are in bytes.
13832 If the underlying system call fails, value is nil. */)
13833 (filename)
13834 Lisp_Object filename;
13836 Lisp_Object encoded, value;
13838 CHECK_STRING (filename);
13839 filename = Fexpand_file_name (filename, Qnil);
13840 encoded = ENCODE_FILE (filename);
13842 value = Qnil;
13844 /* Determining the required information on Windows turns out, sadly,
13845 to be more involved than one would hope. The original Win32 api
13846 call for this will return bogus information on some systems, but we
13847 must dynamically probe for the replacement api, since that was
13848 added rather late on. */
13850 HMODULE hKernel = GetModuleHandle ("kernel32");
13851 BOOL (*pfn_GetDiskFreeSpaceEx)
13852 (char *, PULARGE_INTEGER, PULARGE_INTEGER, PULARGE_INTEGER)
13853 = (void *) GetProcAddress (hKernel, "GetDiskFreeSpaceEx");
13855 /* On Windows, we may need to specify the root directory of the
13856 volume holding FILENAME. */
13857 char rootname[MAX_PATH];
13858 char *name = SDATA (encoded);
13860 /* find the root name of the volume if given */
13861 if (isalpha (name[0]) && name[1] == ':')
13863 rootname[0] = name[0];
13864 rootname[1] = name[1];
13865 rootname[2] = '\\';
13866 rootname[3] = 0;
13868 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
13870 char *str = rootname;
13871 int slashes = 4;
13874 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
13875 break;
13876 *str++ = *name++;
13878 while ( *name );
13880 *str++ = '\\';
13881 *str = 0;
13884 if (pfn_GetDiskFreeSpaceEx)
13886 /* Unsigned large integers cannot be cast to double, so
13887 use signed ones instead. */
13888 LARGE_INTEGER availbytes;
13889 LARGE_INTEGER freebytes;
13890 LARGE_INTEGER totalbytes;
13892 if (pfn_GetDiskFreeSpaceEx(rootname,
13893 (ULARGE_INTEGER *)&availbytes,
13894 (ULARGE_INTEGER *)&totalbytes,
13895 (ULARGE_INTEGER *)&freebytes))
13896 value = list3 (make_float ((double) totalbytes.QuadPart),
13897 make_float ((double) freebytes.QuadPart),
13898 make_float ((double) availbytes.QuadPart));
13900 else
13902 DWORD sectors_per_cluster;
13903 DWORD bytes_per_sector;
13904 DWORD free_clusters;
13905 DWORD total_clusters;
13907 if (GetDiskFreeSpace(rootname,
13908 &sectors_per_cluster,
13909 &bytes_per_sector,
13910 &free_clusters,
13911 &total_clusters))
13912 value = list3 (make_float ((double) total_clusters
13913 * sectors_per_cluster * bytes_per_sector),
13914 make_float ((double) free_clusters
13915 * sectors_per_cluster * bytes_per_sector),
13916 make_float ((double) free_clusters
13917 * sectors_per_cluster * bytes_per_sector));
13921 return value;
13924 /***********************************************************************
13925 Initialization
13926 ***********************************************************************/
13928 /* Keep this list in the same order as frame_parms in frame.c.
13929 Use 0 for unsupported frame parameters. */
13931 frame_parm_handler w32_frame_parm_handlers[] =
13933 x_set_autoraise,
13934 x_set_autolower,
13935 x_set_background_color,
13936 x_set_border_color,
13937 x_set_border_width,
13938 x_set_cursor_color,
13939 x_set_cursor_type,
13940 x_set_font,
13941 x_set_foreground_color,
13942 x_set_icon_name,
13943 x_set_icon_type,
13944 x_set_internal_border_width,
13945 x_set_menu_bar_lines,
13946 x_set_mouse_color,
13947 x_explicitly_set_name,
13948 x_set_scroll_bar_width,
13949 x_set_title,
13950 x_set_unsplittable,
13951 x_set_vertical_scroll_bars,
13952 x_set_visibility,
13953 x_set_tool_bar_lines,
13954 0, /* x_set_scroll_bar_foreground, */
13955 0, /* x_set_scroll_bar_background, */
13956 x_set_screen_gamma,
13957 x_set_line_spacing,
13958 x_set_fringe_width,
13959 x_set_fringe_width,
13960 0, /* x_set_wait_for_wm, */
13961 x_set_fullscreen,
13964 void
13965 syms_of_w32fns ()
13967 globals_of_w32fns ();
13968 /* This is zero if not using MS-Windows. */
13969 w32_in_use = 0;
13970 track_mouse_window = NULL;
13972 w32_visible_system_caret_hwnd = NULL;
13974 Qnone = intern ("none");
13975 staticpro (&Qnone);
13976 Qsuppress_icon = intern ("suppress-icon");
13977 staticpro (&Qsuppress_icon);
13978 Qundefined_color = intern ("undefined-color");
13979 staticpro (&Qundefined_color);
13980 Qcenter = intern ("center");
13981 staticpro (&Qcenter);
13982 Qcancel_timer = intern ("cancel-timer");
13983 staticpro (&Qcancel_timer);
13985 Qhyper = intern ("hyper");
13986 staticpro (&Qhyper);
13987 Qsuper = intern ("super");
13988 staticpro (&Qsuper);
13989 Qmeta = intern ("meta");
13990 staticpro (&Qmeta);
13991 Qalt = intern ("alt");
13992 staticpro (&Qalt);
13993 Qctrl = intern ("ctrl");
13994 staticpro (&Qctrl);
13995 Qcontrol = intern ("control");
13996 staticpro (&Qcontrol);
13997 Qshift = intern ("shift");
13998 staticpro (&Qshift);
13999 /* This is the end of symbol initialization. */
14001 /* Text property `display' should be nonsticky by default. */
14002 Vtext_property_default_nonsticky
14003 = Fcons (Fcons (Qdisplay, Qt), Vtext_property_default_nonsticky);
14006 Qlaplace = intern ("laplace");
14007 staticpro (&Qlaplace);
14008 Qemboss = intern ("emboss");
14009 staticpro (&Qemboss);
14010 Qedge_detection = intern ("edge-detection");
14011 staticpro (&Qedge_detection);
14012 Qheuristic = intern ("heuristic");
14013 staticpro (&Qheuristic);
14014 QCmatrix = intern (":matrix");
14015 staticpro (&QCmatrix);
14016 QCcolor_adjustment = intern (":color-adjustment");
14017 staticpro (&QCcolor_adjustment);
14018 QCmask = intern (":mask");
14019 staticpro (&QCmask);
14021 Fput (Qundefined_color, Qerror_conditions,
14022 Fcons (Qundefined_color, Fcons (Qerror, Qnil)));
14023 Fput (Qundefined_color, Qerror_message,
14024 build_string ("Undefined color"));
14026 staticpro (&w32_grabbed_keys);
14027 w32_grabbed_keys = Qnil;
14029 DEFVAR_LISP ("w32-color-map", &Vw32_color_map,
14030 doc: /* An array of color name mappings for windows. */);
14031 Vw32_color_map = Qnil;
14033 DEFVAR_LISP ("w32-pass-alt-to-system", &Vw32_pass_alt_to_system,
14034 doc: /* Non-nil if alt key presses are passed on to Windows.
14035 When non-nil, for example, alt pressed and released and then space will
14036 open the System menu. When nil, Emacs silently swallows alt key events. */);
14037 Vw32_pass_alt_to_system = Qnil;
14039 DEFVAR_LISP ("w32-alt-is-meta", &Vw32_alt_is_meta,
14040 doc: /* Non-nil if the alt key is to be considered the same as the meta key.
14041 When nil, Emacs will translate the alt key to the Alt modifier, and not Meta. */);
14042 Vw32_alt_is_meta = Qt;
14044 DEFVAR_INT ("w32-quit-key", &Vw32_quit_key,
14045 doc: /* If non-zero, the virtual key code for an alternative quit key. */);
14046 XSETINT (Vw32_quit_key, 0);
14048 DEFVAR_LISP ("w32-pass-lwindow-to-system",
14049 &Vw32_pass_lwindow_to_system,
14050 doc: /* Non-nil if the left \"Windows\" key is passed on to Windows.
14051 When non-nil, the Start menu is opened by tapping the key. */);
14052 Vw32_pass_lwindow_to_system = Qt;
14054 DEFVAR_LISP ("w32-pass-rwindow-to-system",
14055 &Vw32_pass_rwindow_to_system,
14056 doc: /* Non-nil if the right \"Windows\" key is passed on to Windows.
14057 When non-nil, the Start menu is opened by tapping the key. */);
14058 Vw32_pass_rwindow_to_system = Qt;
14060 DEFVAR_INT ("w32-phantom-key-code",
14061 &Vw32_phantom_key_code,
14062 doc: /* Virtual key code used to generate \"phantom\" key presses.
14063 Value is a number between 0 and 255.
14065 Phantom key presses are generated in order to stop the system from
14066 acting on \"Windows\" key events when `w32-pass-lwindow-to-system' or
14067 `w32-pass-rwindow-to-system' is nil. */);
14068 /* Although 255 is technically not a valid key code, it works and
14069 means that this hack won't interfere with any real key code. */
14070 Vw32_phantom_key_code = 255;
14072 DEFVAR_LISP ("w32-enable-num-lock",
14073 &Vw32_enable_num_lock,
14074 doc: /* Non-nil if Num Lock should act normally.
14075 Set to nil to see Num Lock as the key `kp-numlock'. */);
14076 Vw32_enable_num_lock = Qt;
14078 DEFVAR_LISP ("w32-enable-caps-lock",
14079 &Vw32_enable_caps_lock,
14080 doc: /* Non-nil if Caps Lock should act normally.
14081 Set to nil to see Caps Lock as the key `capslock'. */);
14082 Vw32_enable_caps_lock = Qt;
14084 DEFVAR_LISP ("w32-scroll-lock-modifier",
14085 &Vw32_scroll_lock_modifier,
14086 doc: /* Modifier to use for the Scroll Lock on state.
14087 The value can be hyper, super, meta, alt, control or shift for the
14088 respective modifier, or nil to see Scroll Lock as the key `scroll'.
14089 Any other value will cause the key to be ignored. */);
14090 Vw32_scroll_lock_modifier = Qt;
14092 DEFVAR_LISP ("w32-lwindow-modifier",
14093 &Vw32_lwindow_modifier,
14094 doc: /* Modifier to use for the left \"Windows\" key.
14095 The value can be hyper, super, meta, alt, control or shift for the
14096 respective modifier, or nil to appear as the key `lwindow'.
14097 Any other value will cause the key to be ignored. */);
14098 Vw32_lwindow_modifier = Qnil;
14100 DEFVAR_LISP ("w32-rwindow-modifier",
14101 &Vw32_rwindow_modifier,
14102 doc: /* Modifier to use for the right \"Windows\" key.
14103 The value can be hyper, super, meta, alt, control or shift for the
14104 respective modifier, or nil to appear as the key `rwindow'.
14105 Any other value will cause the key to be ignored. */);
14106 Vw32_rwindow_modifier = Qnil;
14108 DEFVAR_LISP ("w32-apps-modifier",
14109 &Vw32_apps_modifier,
14110 doc: /* Modifier to use for the \"Apps\" key.
14111 The value can be hyper, super, meta, alt, control or shift for the
14112 respective modifier, or nil to appear as the key `apps'.
14113 Any other value will cause the key to be ignored. */);
14114 Vw32_apps_modifier = Qnil;
14116 DEFVAR_BOOL ("w32-enable-synthesized-fonts", &w32_enable_synthesized_fonts,
14117 doc: /* Non-nil enables selection of artificially italicized and bold fonts. */);
14118 w32_enable_synthesized_fonts = 0;
14120 DEFVAR_LISP ("w32-enable-palette", &Vw32_enable_palette,
14121 doc: /* Non-nil enables Windows palette management to map colors exactly. */);
14122 Vw32_enable_palette = Qt;
14124 DEFVAR_INT ("w32-mouse-button-tolerance",
14125 &Vw32_mouse_button_tolerance,
14126 doc: /* Analogue of double click interval for faking middle mouse events.
14127 The value is the minimum time in milliseconds that must elapse between
14128 left/right button down events before they are considered distinct events.
14129 If both mouse buttons are depressed within this interval, a middle mouse
14130 button down event is generated instead. */);
14131 XSETINT (Vw32_mouse_button_tolerance, GetDoubleClickTime () / 2);
14133 DEFVAR_INT ("w32-mouse-move-interval",
14134 &Vw32_mouse_move_interval,
14135 doc: /* Minimum interval between mouse move events.
14136 The value is the minimum time in milliseconds that must elapse between
14137 successive mouse move (or scroll bar drag) events before they are
14138 reported as lisp events. */);
14139 XSETINT (Vw32_mouse_move_interval, 0);
14141 DEFVAR_BOOL ("w32-pass-extra-mouse-buttons-to-system",
14142 &w32_pass_extra_mouse_buttons_to_system,
14143 doc: /* Non-nil if the fourth and fifth mouse buttons are passed to Windows.
14144 Recent versions of Windows support mice with up to five buttons.
14145 Since most applications don't support these extra buttons, most mouse
14146 drivers will allow you to map them to functions at the system level.
14147 If this variable is non-nil, Emacs will pass them on, allowing the
14148 system to handle them. */);
14149 w32_pass_extra_mouse_buttons_to_system = 0;
14151 DEFVAR_LISP ("x-bitmap-file-path", &Vx_bitmap_file_path,
14152 doc: /* List of directories to search for window system bitmap files. */);
14153 Vx_bitmap_file_path = decode_env_path ((char *) 0, "PATH");
14155 DEFVAR_LISP ("x-pointer-shape", &Vx_pointer_shape,
14156 doc: /* The shape of the pointer when over text.
14157 Changing the value does not affect existing frames
14158 unless you set the mouse color. */);
14159 Vx_pointer_shape = Qnil;
14161 Vx_nontext_pointer_shape = Qnil;
14163 Vx_mode_pointer_shape = Qnil;
14165 DEFVAR_LISP ("x-hourglass-pointer-shape", &Vx_hourglass_pointer_shape,
14166 doc: /* The shape of the pointer when Emacs is busy.
14167 This variable takes effect when you create a new frame
14168 or when you set the mouse color. */);
14169 Vx_hourglass_pointer_shape = Qnil;
14171 DEFVAR_BOOL ("display-hourglass", &display_hourglass_p,
14172 doc: /* Non-zero means Emacs displays an hourglass pointer on window systems. */);
14173 display_hourglass_p = 1;
14175 DEFVAR_LISP ("hourglass-delay", &Vhourglass_delay,
14176 doc: /* *Seconds to wait before displaying an hourglass pointer.
14177 Value must be an integer or float. */);
14178 Vhourglass_delay = make_number (DEFAULT_HOURGLASS_DELAY);
14180 DEFVAR_LISP ("x-sensitive-text-pointer-shape",
14181 &Vx_sensitive_text_pointer_shape,
14182 doc: /* The shape of the pointer when over mouse-sensitive text.
14183 This variable takes effect when you create a new frame
14184 or when you set the mouse color. */);
14185 Vx_sensitive_text_pointer_shape = Qnil;
14187 DEFVAR_LISP ("x-window-horizontal-drag-cursor",
14188 &Vx_window_horizontal_drag_shape,
14189 doc: /* Pointer shape to use for indicating a window can be dragged horizontally.
14190 This variable takes effect when you create a new frame
14191 or when you set the mouse color. */);
14192 Vx_window_horizontal_drag_shape = Qnil;
14194 DEFVAR_LISP ("x-cursor-fore-pixel", &Vx_cursor_fore_pixel,
14195 doc: /* A string indicating the foreground color of the cursor box. */);
14196 Vx_cursor_fore_pixel = Qnil;
14198 DEFVAR_LISP ("x-max-tooltip-size", &Vx_max_tooltip_size,
14199 doc: /* Maximum size for tooltips.
14200 Value is a pair (COLUMNS . ROWS). Text larger than this is clipped. */);
14201 Vx_max_tooltip_size = Fcons (make_number (80), make_number (40));
14203 DEFVAR_LISP ("x-no-window-manager", &Vx_no_window_manager,
14204 doc: /* Non-nil if no window manager is in use.
14205 Emacs doesn't try to figure this out; this is always nil
14206 unless you set it to something else. */);
14207 /* We don't have any way to find this out, so set it to nil
14208 and maybe the user would like to set it to t. */
14209 Vx_no_window_manager = Qnil;
14211 DEFVAR_LISP ("x-pixel-size-width-font-regexp",
14212 &Vx_pixel_size_width_font_regexp,
14213 doc: /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.
14215 Since Emacs gets width of a font matching with this regexp from
14216 PIXEL_SIZE field of the name, font finding mechanism gets faster for
14217 such a font. This is especially effective for such large fonts as
14218 Chinese, Japanese, and Korean. */);
14219 Vx_pixel_size_width_font_regexp = Qnil;
14221 DEFVAR_LISP ("image-cache-eviction-delay", &Vimage_cache_eviction_delay,
14222 doc: /* Time after which cached images are removed from the cache.
14223 When an image has not been displayed this many seconds, remove it
14224 from the image cache. Value must be an integer or nil with nil
14225 meaning don't clear the cache. */);
14226 Vimage_cache_eviction_delay = make_number (30 * 60);
14228 DEFVAR_LISP ("w32-bdf-filename-alist",
14229 &Vw32_bdf_filename_alist,
14230 doc: /* List of bdf fonts and their corresponding filenames. */);
14231 Vw32_bdf_filename_alist = Qnil;
14233 DEFVAR_BOOL ("w32-strict-fontnames",
14234 &w32_strict_fontnames,
14235 doc: /* Non-nil means only use fonts that are exact matches for those requested.
14236 Default is nil, which allows old fontnames that are not XLFD compliant,
14237 and allows third-party CJK display to work by specifying false charset
14238 fields to trick Emacs into translating to Big5, SJIS etc.
14239 Setting this to t will prevent wrong fonts being selected when
14240 fontsets are automatically created. */);
14241 w32_strict_fontnames = 0;
14243 DEFVAR_BOOL ("w32-strict-painting",
14244 &w32_strict_painting,
14245 doc: /* Non-nil means use strict rules for repainting frames.
14246 Set this to nil to get the old behaviour for repainting; this should
14247 only be necessary if the default setting causes problems. */);
14248 w32_strict_painting = 1;
14250 DEFVAR_LISP ("w32-charset-info-alist",
14251 &Vw32_charset_info_alist,
14252 doc: /* Alist linking Emacs character sets to Windows fonts and codepages.
14253 Each entry should be of the form:
14255 (CHARSET_NAME . (WINDOWS_CHARSET . CODEPAGE))
14257 where CHARSET_NAME is a string used in font names to identify the charset,
14258 WINDOWS_CHARSET is a symbol that can be one of:
14259 w32-charset-ansi, w32-charset-default, w32-charset-symbol,
14260 w32-charset-shiftjis, w32-charset-hangeul, w32-charset-gb2312,
14261 w32-charset-chinesebig5,
14262 w32-charset-johab, w32-charset-hebrew,
14263 w32-charset-arabic, w32-charset-greek, w32-charset-turkish,
14264 w32-charset-vietnamese, w32-charset-thai, w32-charset-easteurope,
14265 w32-charset-russian, w32-charset-mac, w32-charset-baltic,
14266 w32-charset-unicode,
14267 or w32-charset-oem.
14268 CODEPAGE should be an integer specifying the codepage that should be used
14269 to display the character set, t to do no translation and output as Unicode,
14270 or nil to do no translation and output as 8 bit (or multibyte on far-east
14271 versions of Windows) characters. */);
14272 Vw32_charset_info_alist = Qnil;
14274 staticpro (&Qw32_charset_ansi);
14275 Qw32_charset_ansi = intern ("w32-charset-ansi");
14276 staticpro (&Qw32_charset_symbol);
14277 Qw32_charset_symbol = intern ("w32-charset-symbol");
14278 staticpro (&Qw32_charset_shiftjis);
14279 Qw32_charset_shiftjis = intern ("w32-charset-shiftjis");
14280 staticpro (&Qw32_charset_hangeul);
14281 Qw32_charset_hangeul = intern ("w32-charset-hangeul");
14282 staticpro (&Qw32_charset_chinesebig5);
14283 Qw32_charset_chinesebig5 = intern ("w32-charset-chinesebig5");
14284 staticpro (&Qw32_charset_gb2312);
14285 Qw32_charset_gb2312 = intern ("w32-charset-gb2312");
14286 staticpro (&Qw32_charset_oem);
14287 Qw32_charset_oem = intern ("w32-charset-oem");
14289 #ifdef JOHAB_CHARSET
14291 static int w32_extra_charsets_defined = 1;
14292 DEFVAR_BOOL ("w32-extra-charsets-defined", &w32_extra_charsets_defined,
14293 doc: /* Internal variable. */);
14295 staticpro (&Qw32_charset_johab);
14296 Qw32_charset_johab = intern ("w32-charset-johab");
14297 staticpro (&Qw32_charset_easteurope);
14298 Qw32_charset_easteurope = intern ("w32-charset-easteurope");
14299 staticpro (&Qw32_charset_turkish);
14300 Qw32_charset_turkish = intern ("w32-charset-turkish");
14301 staticpro (&Qw32_charset_baltic);
14302 Qw32_charset_baltic = intern ("w32-charset-baltic");
14303 staticpro (&Qw32_charset_russian);
14304 Qw32_charset_russian = intern ("w32-charset-russian");
14305 staticpro (&Qw32_charset_arabic);
14306 Qw32_charset_arabic = intern ("w32-charset-arabic");
14307 staticpro (&Qw32_charset_greek);
14308 Qw32_charset_greek = intern ("w32-charset-greek");
14309 staticpro (&Qw32_charset_hebrew);
14310 Qw32_charset_hebrew = intern ("w32-charset-hebrew");
14311 staticpro (&Qw32_charset_vietnamese);
14312 Qw32_charset_vietnamese = intern ("w32-charset-vietnamese");
14313 staticpro (&Qw32_charset_thai);
14314 Qw32_charset_thai = intern ("w32-charset-thai");
14315 staticpro (&Qw32_charset_mac);
14316 Qw32_charset_mac = intern ("w32-charset-mac");
14318 #endif
14320 #ifdef UNICODE_CHARSET
14322 static int w32_unicode_charset_defined = 1;
14323 DEFVAR_BOOL ("w32-unicode-charset-defined",
14324 &w32_unicode_charset_defined,
14325 doc: /* Internal variable. */);
14327 staticpro (&Qw32_charset_unicode);
14328 Qw32_charset_unicode = intern ("w32-charset-unicode");
14329 #endif
14331 #if 0 /* TODO: Port to W32 */
14332 defsubr (&Sx_change_window_property);
14333 defsubr (&Sx_delete_window_property);
14334 defsubr (&Sx_window_property);
14335 #endif
14336 defsubr (&Sxw_display_color_p);
14337 defsubr (&Sx_display_grayscale_p);
14338 defsubr (&Sxw_color_defined_p);
14339 defsubr (&Sxw_color_values);
14340 defsubr (&Sx_server_max_request_size);
14341 defsubr (&Sx_server_vendor);
14342 defsubr (&Sx_server_version);
14343 defsubr (&Sx_display_pixel_width);
14344 defsubr (&Sx_display_pixel_height);
14345 defsubr (&Sx_display_mm_width);
14346 defsubr (&Sx_display_mm_height);
14347 defsubr (&Sx_display_screens);
14348 defsubr (&Sx_display_planes);
14349 defsubr (&Sx_display_color_cells);
14350 defsubr (&Sx_display_visual_class);
14351 defsubr (&Sx_display_backing_store);
14352 defsubr (&Sx_display_save_under);
14353 defsubr (&Sx_create_frame);
14354 defsubr (&Sx_open_connection);
14355 defsubr (&Sx_close_connection);
14356 defsubr (&Sx_display_list);
14357 defsubr (&Sx_synchronize);
14359 /* W32 specific functions */
14361 defsubr (&Sw32_focus_frame);
14362 defsubr (&Sw32_select_font);
14363 defsubr (&Sw32_define_rgb_color);
14364 defsubr (&Sw32_default_color_map);
14365 defsubr (&Sw32_load_color_file);
14366 defsubr (&Sw32_send_sys_command);
14367 defsubr (&Sw32_shell_execute);
14368 defsubr (&Sw32_register_hot_key);
14369 defsubr (&Sw32_unregister_hot_key);
14370 defsubr (&Sw32_registered_hot_keys);
14371 defsubr (&Sw32_reconstruct_hot_key);
14372 defsubr (&Sw32_toggle_lock_key);
14373 defsubr (&Sw32_find_bdf_fonts);
14375 defsubr (&Sfile_system_info);
14377 /* Setting callback functions for fontset handler. */
14378 get_font_info_func = w32_get_font_info;
14380 #if 0 /* This function pointer doesn't seem to be used anywhere.
14381 And the pointer assigned has the wrong type, anyway. */
14382 list_fonts_func = w32_list_fonts;
14383 #endif
14385 load_font_func = w32_load_font;
14386 find_ccl_program_func = w32_find_ccl_program;
14387 query_font_func = w32_query_font;
14388 set_frame_fontset_func = x_set_font;
14389 check_window_system_func = check_w32;
14391 /* Images. */
14392 Qxbm = intern ("xbm");
14393 staticpro (&Qxbm);
14394 QCconversion = intern (":conversion");
14395 staticpro (&QCconversion);
14396 QCheuristic_mask = intern (":heuristic-mask");
14397 staticpro (&QCheuristic_mask);
14398 QCcolor_symbols = intern (":color-symbols");
14399 staticpro (&QCcolor_symbols);
14400 QCascent = intern (":ascent");
14401 staticpro (&QCascent);
14402 QCmargin = intern (":margin");
14403 staticpro (&QCmargin);
14404 QCrelief = intern (":relief");
14405 staticpro (&QCrelief);
14406 Qpostscript = intern ("postscript");
14407 staticpro (&Qpostscript);
14408 QCloader = intern (":loader");
14409 staticpro (&QCloader);
14410 QCbounding_box = intern (":bounding-box");
14411 staticpro (&QCbounding_box);
14412 QCpt_width = intern (":pt-width");
14413 staticpro (&QCpt_width);
14414 QCpt_height = intern (":pt-height");
14415 staticpro (&QCpt_height);
14416 QCindex = intern (":index");
14417 staticpro (&QCindex);
14418 Qpbm = intern ("pbm");
14419 staticpro (&Qpbm);
14421 #if HAVE_XPM
14422 Qxpm = intern ("xpm");
14423 staticpro (&Qxpm);
14424 #endif
14426 #if HAVE_JPEG
14427 Qjpeg = intern ("jpeg");
14428 staticpro (&Qjpeg);
14429 #endif
14431 #if HAVE_TIFF
14432 Qtiff = intern ("tiff");
14433 staticpro (&Qtiff);
14434 #endif
14436 #if HAVE_GIF
14437 Qgif = intern ("gif");
14438 staticpro (&Qgif);
14439 #endif
14441 #if HAVE_PNG
14442 Qpng = intern ("png");
14443 staticpro (&Qpng);
14444 #endif
14446 defsubr (&Sclear_image_cache);
14447 defsubr (&Simage_size);
14448 defsubr (&Simage_mask_p);
14450 hourglass_atimer = NULL;
14451 hourglass_shown_p = 0;
14452 defsubr (&Sx_show_tip);
14453 defsubr (&Sx_hide_tip);
14454 tip_timer = Qnil;
14455 staticpro (&tip_timer);
14456 tip_frame = Qnil;
14457 staticpro (&tip_frame);
14459 last_show_tip_args = Qnil;
14460 staticpro (&last_show_tip_args);
14462 defsubr (&Sx_file_dialog);
14467 globals_of_w32fns is used to initialize those global variables that
14468 must always be initialized on startup even when the global variable
14469 initialized is non zero (see the function main in emacs.c).
14470 globals_of_w32fns is called from syms_of_w32fns when the global
14471 variable initialized is 0 and directly from main when initialized
14472 is non zero.
14474 void globals_of_w32fns ()
14476 HMODULE user32_lib = GetModuleHandle ("user32.dll");
14478 TrackMouseEvent not available in all versions of Windows, so must load
14479 it dynamically. Do it once, here, instead of every time it is used.
14481 track_mouse_event_fn = (TrackMouseEvent_Proc)
14482 GetProcAddress (user32_lib, "TrackMouseEvent");
14483 /* ditto for GetClipboardSequenceNumber. */
14484 clipboard_sequence_fn = (ClipboardSequence_Proc)
14485 GetProcAddress (user32_lib, "GetClipboardSequenceNumber");
14488 /* Initialize image types. Based on which libraries are available. */
14489 static void
14490 init_external_image_libraries ()
14492 HINSTANCE library;
14494 #if HAVE_XPM
14495 if ((library = LoadLibrary ("libXpm.dll")))
14497 if (init_xpm_functions (library))
14498 define_image_type (&xpm_type);
14501 #endif
14503 #if HAVE_JPEG
14504 /* Try loading jpeg library under probable names. */
14505 if ((library = LoadLibrary ("libjpeg.dll"))
14506 || (library = LoadLibrary ("jpeg-62.dll"))
14507 || (library = LoadLibrary ("jpeg.dll")))
14509 if (init_jpeg_functions (library))
14510 define_image_type (&jpeg_type);
14512 #endif
14514 #if HAVE_TIFF
14515 if (library = LoadLibrary ("libtiff.dll"))
14517 if (init_tiff_functions (library))
14518 define_image_type (&tiff_type);
14520 #endif
14522 #if HAVE_GIF
14523 if (library = LoadLibrary ("libungif.dll"))
14525 if (init_gif_functions (library))
14526 define_image_type (&gif_type);
14528 #endif
14530 #if HAVE_PNG
14531 /* Ensure zlib is loaded. Try debug version first. */
14532 if (!LoadLibrary ("zlibd.dll"))
14533 LoadLibrary ("zlib.dll");
14535 /* Try loading libpng under probable names. */
14536 if ((library = LoadLibrary ("libpng13d.dll"))
14537 || (library = LoadLibrary ("libpng13.dll"))
14538 || (library = LoadLibrary ("libpng12d.dll"))
14539 || (library = LoadLibrary ("libpng12.dll"))
14540 || (library = LoadLibrary ("libpng.dll")))
14542 if (init_png_functions (library))
14543 define_image_type (&png_type);
14545 #endif
14548 void
14549 init_xfns ()
14551 image_types = NULL;
14552 Vimage_types = Qnil;
14554 define_image_type (&pbm_type);
14555 define_image_type (&xbm_type);
14557 #if 0 /* TODO : Ghostscript support for W32 */
14558 define_image_type (&gs_type);
14559 #endif
14561 /* Image types that rely on external libraries are loaded dynamically
14562 if the library is available. */
14563 init_external_image_libraries ();
14566 #undef abort
14568 void
14569 w32_abort()
14571 int button;
14572 button = MessageBox (NULL,
14573 "A fatal error has occurred!\n\n"
14574 "Select Abort to exit, Retry to debug, Ignore to continue",
14575 "Emacs Abort Dialog",
14576 MB_ICONEXCLAMATION | MB_TASKMODAL
14577 | MB_SETFOREGROUND | MB_ABORTRETRYIGNORE);
14578 switch (button)
14580 case IDRETRY:
14581 DebugBreak ();
14582 break;
14583 case IDIGNORE:
14584 break;
14585 case IDABORT:
14586 default:
14587 abort ();
14588 break;
14592 /* For convenience when debugging. */
14594 w32_last_error()
14596 return GetLastError ();
14599 /* arch-tag: 707589ab-b9be-4638-8cdd-74629cc9b446
14600 (do not change this comment) */