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[emacs.git] / src / w32term.c
blob13da811c8190ed9594d3d668bcaa850489eccc1d
1 /* Implementation of GUI terminal on the Microsoft W32 API.
2 Copyright (C) 1989, 93, 94, 95, 96, 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 #include <config.h>
23 #include <signal.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include "lisp.h"
27 #include "charset.h"
28 #include "blockinput.h"
30 #include "w32heap.h"
31 #include "w32term.h"
32 #include "w32bdf.h"
33 #include <shellapi.h>
35 #include "systty.h"
36 #include "systime.h"
37 #include "atimer.h"
38 #include "keymap.h"
40 #include <ctype.h>
41 #include <errno.h>
42 #include <setjmp.h>
43 #include <sys/stat.h>
45 #include "keyboard.h"
46 #include "frame.h"
47 #include "dispextern.h"
48 #include "fontset.h"
49 #include "termhooks.h"
50 #include "termopts.h"
51 #include "termchar.h"
52 #include "gnu.h"
53 #include "disptab.h"
54 #include "buffer.h"
55 #include "window.h"
56 #include "intervals.h"
57 #include "composite.h"
58 #include "coding.h"
60 #define abs(x) ((x) < 0 ? -(x) : (x))
63 /* Fringe bitmaps. */
65 static HBITMAP fringe_bmp[MAX_FRINGE_BITMAPS];
67 /* Non-nil means Emacs uses toolkit scroll bars. */
69 Lisp_Object Vx_toolkit_scroll_bars;
71 /* Temporary variables for w32_read_socket. */
73 static int last_mousemove_x = 0;
74 static int last_mousemove_y = 0;
76 /* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
77 #ifndef GET_WHEEL_DELTA_WPARAM
78 #define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
79 #endif
81 /* Non-zero means that a HELP_EVENT has been generated since Emacs
82 start. */
84 static int any_help_event_p;
86 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
87 static Lisp_Object last_window;
89 extern unsigned int msh_mousewheel;
91 extern void free_frame_menubar ();
93 extern int w32_codepage_for_font (char *fontname);
94 extern Cursor w32_load_cursor (LPCTSTR name);
96 extern glyph_metric *w32_BDF_TextMetric(bdffont *fontp,
97 unsigned char *text, int dim);
98 extern Lisp_Object Vwindow_system;
100 #define x_any_window_to_frame x_window_to_frame
101 #define x_top_window_to_frame x_window_to_frame
104 /* This is display since w32 does not support multiple ones. */
105 struct w32_display_info one_w32_display_info;
106 struct w32_display_info *x_display_list;
108 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
109 one for each element of w32_display_list and in the same order.
110 NAME is the name of the frame.
111 FONT-LIST-CACHE records previous values returned by x-list-fonts. */
112 Lisp_Object w32_display_name_list;
114 /* Frame being updated by update_frame. This is declared in term.c.
115 This is set by update_begin and looked at by all the
116 w32 functions. It is zero while not inside an update.
117 In that case, the w32 functions assume that `SELECTED_FRAME ()'
118 is the frame to apply to. */
119 extern struct frame *updating_frame;
121 /* This is a frame waiting to be autoraised, within w32_read_socket. */
122 struct frame *pending_autoraise_frame;
124 /* The handle of the frame that currently owns the system caret. */
125 HWND w32_system_caret_hwnd;
126 int w32_system_caret_height;
127 int w32_system_caret_x;
128 int w32_system_caret_y;
129 int w32_use_visible_system_caret;
131 /* Flag to enable Unicode output in case users wish to use programs
132 like Twinbridge on '95 rather than installed system level support
133 for Far East languages. */
134 int w32_enable_unicode_output;
136 DWORD dwWindowsThreadId = 0;
137 HANDLE hWindowsThread = NULL;
138 DWORD dwMainThreadId = 0;
139 HANDLE hMainThread = NULL;
141 #ifndef SIF_ALL
142 /* These definitions are new with Windows 95. */
143 #define SIF_RANGE 0x0001
144 #define SIF_PAGE 0x0002
145 #define SIF_POS 0x0004
146 #define SIF_DISABLENOSCROLL 0x0008
147 #define SIF_TRACKPOS 0x0010
148 #define SIF_ALL (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS)
150 typedef struct tagSCROLLINFO
152 UINT cbSize;
153 UINT fMask;
154 int nMin;
155 int nMax;
156 UINT nPage;
157 int nPos;
158 int nTrackPos;
159 } SCROLLINFO, FAR *LPSCROLLINFO;
160 typedef SCROLLINFO CONST FAR *LPCSCROLLINFO;
161 #endif /* SIF_ALL */
163 /* Dynamic linking to new proportional scroll bar functions. */
164 int (PASCAL *pfnSetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi, BOOL fRedraw);
165 BOOL (PASCAL *pfnGetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi);
167 int vertical_scroll_bar_min_handle;
168 int vertical_scroll_bar_top_border;
169 int vertical_scroll_bar_bottom_border;
171 int last_scroll_bar_drag_pos;
173 /* Mouse movement. */
175 /* Where the mouse was last time we reported a mouse event. */
177 static RECT last_mouse_glyph;
178 static Lisp_Object last_mouse_press_frame;
180 Lisp_Object Vw32_num_mouse_buttons;
182 Lisp_Object Vw32_swap_mouse_buttons;
184 /* Control whether x_raise_frame also sets input focus. */
185 Lisp_Object Vw32_grab_focus_on_raise;
187 /* Control whether Caps Lock affects non-ascii characters. */
188 Lisp_Object Vw32_capslock_is_shiftlock;
190 /* Control whether right-alt and left-ctrl should be recognized as AltGr. */
191 Lisp_Object Vw32_recognize_altgr;
193 /* The scroll bar in which the last motion event occurred.
195 If the last motion event occurred in a scroll bar, we set this
196 so w32_mouse_position can know whether to report a scroll bar motion or
197 an ordinary motion.
199 If the last motion event didn't occur in a scroll bar, we set this
200 to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
201 static Lisp_Object last_mouse_scroll_bar;
202 static int last_mouse_scroll_bar_pos;
204 /* This is a hack. We would really prefer that w32_mouse_position would
205 return the time associated with the position it returns, but there
206 doesn't seem to be any way to wrest the time-stamp from the server
207 along with the position query. So, we just keep track of the time
208 of the last movement we received, and return that in hopes that
209 it's somewhat accurate. */
211 static Time last_mouse_movement_time;
213 /* Incremented by w32_read_socket whenever it really tries to read
214 events. */
216 #ifdef __STDC__
217 static int volatile input_signal_count;
218 #else
219 static int input_signal_count;
220 #endif
222 extern Lisp_Object Vcommand_line_args, Vsystem_name;
224 #ifndef USE_CRT_DLL
225 extern int errno;
226 #endif
228 /* A mask of extra modifier bits to put into every keyboard char. */
230 extern EMACS_INT extra_keyboard_modifiers;
232 static void x_update_window_end P_ ((struct window *, int, int));
233 void w32_delete_display P_ ((struct w32_display_info *));
234 static void w32_handle_tool_bar_click P_ ((struct frame *,
235 struct input_event *));
236 void w32_define_cursor P_ ((Window, Cursor));
238 void x_lower_frame P_ ((struct frame *));
239 void x_scroll_bar_clear P_ ((struct frame *));
240 void x_wm_set_size_hint P_ ((struct frame *, long, int));
241 void x_raise_frame P_ ((struct frame *));
242 void x_set_window_size P_ ((struct frame *, int, int, int));
243 void x_wm_set_window_state P_ ((struct frame *, int));
244 void x_wm_set_icon_pixmap P_ ((struct frame *, int));
245 void w32_initialize P_ ((void));
246 static void x_font_min_bounds P_ ((XFontStruct *, int *, int *));
247 int x_compute_min_glyph_bounds P_ ((struct frame *));
248 static void x_update_end P_ ((struct frame *));
249 static void w32_frame_up_to_date P_ ((struct frame *));
250 static void w32_set_terminal_modes P_ ((void));
251 static void w32_reset_terminal_modes P_ ((void));
252 static void x_clear_frame P_ ((void));
253 static void frame_highlight P_ ((struct frame *));
254 static void frame_unhighlight P_ ((struct frame *));
255 static void x_new_focus_frame P_ ((struct w32_display_info *,
256 struct frame *));
257 static void w32_frame_rehighlight P_ ((struct frame *));
258 static void x_frame_rehighlight P_ ((struct w32_display_info *));
259 static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *));
260 static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int,
261 enum text_cursor_kinds));
262 static void w32_clip_to_row P_ ((struct window *, struct glyph_row *, HDC));
264 static Lisp_Object Qvendor_specific_keysyms;
267 /***********************************************************************
268 Debugging
269 ***********************************************************************/
271 #if 0
273 /* This is a function useful for recording debugging information about
274 the sequence of occurrences in this file. */
276 struct record
278 char *locus;
279 int type;
282 struct record event_record[100];
284 int event_record_index;
286 record_event (locus, type)
287 char *locus;
288 int type;
290 if (event_record_index == sizeof (event_record) / sizeof (struct record))
291 event_record_index = 0;
293 event_record[event_record_index].locus = locus;
294 event_record[event_record_index].type = type;
295 event_record_index++;
298 #endif /* 0 */
301 void
302 XChangeGC (void * ignore, XGCValues* gc, unsigned long mask,
303 XGCValues *xgcv)
305 if (mask & GCForeground)
306 gc->foreground = xgcv->foreground;
307 if (mask & GCBackground)
308 gc->background = xgcv->background;
309 if (mask & GCFont)
310 gc->font = xgcv->font;
313 XGCValues *XCreateGC (void * ignore, Window window, unsigned long mask,
314 XGCValues *xgcv)
316 XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
317 bzero (gc, sizeof (XGCValues));
319 XChangeGC (ignore, gc, mask, xgcv);
321 return gc;
324 void
325 XGetGCValues (void* ignore, XGCValues *gc,
326 unsigned long mask, XGCValues *xgcv)
328 XChangeGC (ignore, xgcv, mask, gc);
331 static void
332 w32_set_clip_rectangle (HDC hdc, RECT *rect)
334 if (rect)
336 HRGN clip_region = CreateRectRgnIndirect (rect);
337 SelectClipRgn (hdc, clip_region);
338 DeleteObject (clip_region);
340 else
341 SelectClipRgn (hdc, NULL);
345 /* Draw a hollow rectangle at the specified position. */
346 void
347 w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
348 int width, int height)
350 HBRUSH hb, oldhb;
351 HPEN hp, oldhp;
353 hb = CreateSolidBrush (gc->background);
354 hp = CreatePen (PS_SOLID, 0, gc->foreground);
355 oldhb = SelectObject (hdc, hb);
356 oldhp = SelectObject (hdc, hp);
358 Rectangle (hdc, x, y, x + width, y + height);
360 SelectObject (hdc, oldhb);
361 SelectObject (hdc, oldhp);
362 DeleteObject (hb);
363 DeleteObject (hp);
366 /* Draw a filled rectangle at the specified position. */
367 void
368 w32_fill_rect (f, hdc, pix, lprect)
369 FRAME_PTR f;
370 HDC hdc;
371 COLORREF pix;
372 RECT * lprect;
374 HBRUSH hb;
376 hb = CreateSolidBrush (pix);
377 FillRect (hdc, lprect, hb);
378 DeleteObject (hb);
381 void
382 w32_clear_window (f)
383 FRAME_PTR f;
385 RECT rect;
386 HDC hdc = get_frame_dc (f);
388 /* Under certain conditions, this can be called at startup with
389 a console frame pointer before the GUI frame is created. An HDC
390 of 0 indicates this. */
391 if (hdc)
393 GetClientRect (FRAME_W32_WINDOW (f), &rect);
394 w32_clear_rect (f, hdc, &rect);
397 release_frame_dc (f, hdc);
401 /***********************************************************************
402 Starting and ending an update
403 ***********************************************************************/
405 /* Start an update of frame F. This function is installed as a hook
406 for update_begin, i.e. it is called when update_begin is called.
407 This function is called prior to calls to x_update_window_begin for
408 each window being updated. */
410 static void
411 x_update_begin (f)
412 struct frame *f;
414 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
416 if (! FRAME_W32_P (f))
417 return;
419 /* Regenerate display palette before drawing if list of requested
420 colors has changed. */
421 if (display_info->regen_palette)
423 w32_regenerate_palette (f);
424 display_info->regen_palette = FALSE;
429 /* Start update of window W. Set the global variable updated_window
430 to the window being updated and set output_cursor to the cursor
431 position of W. */
433 static void
434 x_update_window_begin (w)
435 struct window *w;
437 struct frame *f = XFRAME (WINDOW_FRAME (w));
438 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
440 /* Hide the system caret during an update. */
441 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
443 SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
446 updated_window = w;
447 set_output_cursor (&w->cursor);
449 BLOCK_INPUT;
451 if (f == display_info->mouse_face_mouse_frame)
453 /* Don't do highlighting for mouse motion during the update. */
454 display_info->mouse_face_defer = 1;
456 /* If F needs to be redrawn, simply forget about any prior mouse
457 highlighting. */
458 if (FRAME_GARBAGED_P (f))
459 display_info->mouse_face_window = Qnil;
461 #if 0 /* Rows in a current matrix containing glyphs in mouse-face have
462 their mouse_face_p flag set, which means that they are always
463 unequal to rows in a desired matrix which never have that
464 flag set. So, rows containing mouse-face glyphs are never
465 scrolled, and we don't have to switch the mouse highlight off
466 here to prevent it from being scrolled. */
468 /* Can we tell that this update does not affect the window
469 where the mouse highlight is? If so, no need to turn off.
470 Likewise, don't do anything if the frame is garbaged;
471 in that case, the frame's current matrix that we would use
472 is all wrong, and we will redisplay that line anyway. */
473 if (!NILP (display_info->mouse_face_window)
474 && w == XWINDOW (display_info->mouse_face_window))
476 int i;
478 for (i = 0; i < w->desired_matrix->nrows; ++i)
479 if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
480 break;
482 if (i < w->desired_matrix->nrows)
483 clear_mouse_face (display_info);
485 #endif /* 0 */
488 UNBLOCK_INPUT;
491 /* Draw a vertical window border from (x,y0) to (x,y1) */
493 static void
494 w32_draw_vertical_window_border (w, x, y0, y1)
495 struct window *w;
496 int x, y0, y1;
498 struct frame *f = XFRAME (WINDOW_FRAME (w));
499 RECT r;
500 HDC hdc;
502 r.left = x;
503 r.right = x + 1;
504 r.top = y0;
505 r.bottom = y1;
507 hdc = get_frame_dc (f);
508 w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
509 release_frame_dc (f, hdc);
513 /* End update of window W (which is equal to updated_window).
515 Draw vertical borders between horizontally adjacent windows, and
516 display W's cursor if CURSOR_ON_P is non-zero.
518 MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
519 glyphs in mouse-face were overwritten. In that case we have to
520 make sure that the mouse-highlight is properly redrawn.
522 W may be a menu bar pseudo-window in case we don't have X toolkit
523 support. Such windows don't have a cursor, so don't display it
524 here. */
526 static void
527 x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p)
528 struct window *w;
529 int cursor_on_p, mouse_face_overwritten_p;
531 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (XFRAME (w->frame));
533 if (!w->pseudo_window_p)
535 BLOCK_INPUT;
537 if (cursor_on_p)
538 display_and_set_cursor (w, 1, output_cursor.hpos,
539 output_cursor.vpos,
540 output_cursor.x, output_cursor.y);
542 x_draw_vertical_border (w);
544 draw_window_fringes (w);
546 UNBLOCK_INPUT;
549 /* If a row with mouse-face was overwritten, arrange for
550 XTframe_up_to_date to redisplay the mouse highlight. */
551 if (mouse_face_overwritten_p)
553 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
554 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
555 dpyinfo->mouse_face_window = Qnil;
558 /* Unhide the caret. This won't actually show the cursor, unless it
559 was visible before the corresponding call to HideCaret in
560 x_update_window_begin. */
561 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
563 SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
566 updated_window = NULL;
570 /* End update of frame F. This function is installed as a hook in
571 update_end. */
573 static void
574 x_update_end (f)
575 struct frame *f;
577 if (! FRAME_W32_P (f))
578 return;
580 /* Mouse highlight may be displayed again. */
581 FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
585 /* This function is called from various places in xdisp.c whenever a
586 complete update has been performed. The global variable
587 updated_window is not available here. */
589 static void
590 w32_frame_up_to_date (f)
591 struct frame *f;
593 if (FRAME_W32_P (f))
595 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
597 if (dpyinfo->mouse_face_deferred_gc
598 || f == dpyinfo->mouse_face_mouse_frame)
600 BLOCK_INPUT;
601 if (dpyinfo->mouse_face_mouse_frame)
602 note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
603 dpyinfo->mouse_face_mouse_x,
604 dpyinfo->mouse_face_mouse_y);
605 dpyinfo->mouse_face_deferred_gc = 0;
606 UNBLOCK_INPUT;
612 /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
613 arrow bitmaps, or clear the fringes if no bitmaps are required
614 before DESIRED_ROW is made current. The window being updated is
615 found in updated_window. This function is called from
616 update_window_line only if it is known that there are differences
617 between bitmaps to be drawn between current row and DESIRED_ROW. */
619 static void
620 x_after_update_window_line (desired_row)
621 struct glyph_row *desired_row;
623 struct window *w = updated_window;
624 struct frame *f;
625 int width, height;
627 xassert (w);
629 if (!desired_row->mode_line_p && !w->pseudo_window_p)
630 desired_row->redraw_fringe_bitmaps_p = 1;
632 /* When a window has disappeared, make sure that no rest of
633 full-width rows stays visible in the internal border. Could
634 check here if updated_window is the leftmost/rightmost window,
635 but I guess it's not worth doing since vertically split windows
636 are almost never used, internal border is rarely set, and the
637 overhead is very small. */
638 if (windows_or_buffers_changed
639 && desired_row->full_width_p
640 && (f = XFRAME (w->frame),
641 width = FRAME_INTERNAL_BORDER_WIDTH (f),
642 width != 0)
643 && (height = desired_row->visible_height,
644 height > 0))
646 int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
648 /* Internal border is drawn below the tool bar. */
649 if (WINDOWP (f->tool_bar_window)
650 && w == XWINDOW (f->tool_bar_window))
651 y -= width;
653 BLOCK_INPUT;
655 HDC hdc = get_frame_dc (f);
656 w32_clear_area (f, hdc, 0, y, width, height);
657 w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
658 y, width, height);
659 release_frame_dc (f, hdc);
661 UNBLOCK_INPUT;
666 /* Draw the bitmap WHICH in one of the left or right fringes of
667 window W. ROW is the glyph row for which to display the bitmap; it
668 determines the vertical position at which the bitmap has to be
669 drawn. */
671 static void
672 w32_draw_fringe_bitmap (w, row, p)
673 struct window *w;
674 struct glyph_row *row;
675 struct draw_fringe_bitmap_params *p;
677 struct frame *f = XFRAME (WINDOW_FRAME (w));
678 HDC hdc;
679 struct face *face = p->face;
680 int rowY;
682 hdc = get_frame_dc (f);
684 /* Must clip because of partially visible lines. */
685 rowY = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
686 if (p->y < rowY)
688 /* Adjust position of "bottom aligned" bitmap on partially
689 visible last row. */
690 int oldY = row->y;
691 int oldVH = row->visible_height;
692 row->visible_height = p->h;
693 row->y -= rowY - p->y;
694 w32_clip_to_row (w, row, hdc);
695 row->y = oldY;
696 row->visible_height = oldVH;
698 else
699 w32_clip_to_row (w, row, hdc);
701 if (p->bx >= 0)
703 w32_fill_area (f, hdc, face->background,
704 p->bx, p->by, p->nx, p->ny);
707 if (p->which != NO_FRINGE_BITMAP)
709 HBITMAP pixmap = fringe_bmp[p->which];
710 HDC compat_hdc;
711 HANDLE horig_obj;
713 compat_hdc = CreateCompatibleDC (hdc);
714 SaveDC (hdc);
716 horig_obj = SelectObject (compat_hdc, pixmap);
717 SetTextColor (hdc, face->background);
718 SetBkColor (hdc, face->foreground);
720 BitBlt (hdc, p->x, p->y, p->wd, p->h,
721 compat_hdc, 0, p->dh,
722 SRCCOPY);
724 SelectObject (compat_hdc, horig_obj);
725 DeleteDC (compat_hdc);
726 RestoreDC (hdc, -1);
729 w32_set_clip_rectangle (hdc, NULL);
731 release_frame_dc (f, hdc);
735 /* This is called when starting Emacs and when restarting after
736 suspend. When starting Emacs, no window is mapped. And nothing
737 must be done to Emacs's own window if it is suspended (though that
738 rarely happens). */
740 static void
741 w32_set_terminal_modes (void)
745 /* This is called when exiting or suspending Emacs. Exiting will make
746 the W32 windows go away, and suspending requires no action. */
748 static void
749 w32_reset_terminal_modes (void)
755 /***********************************************************************
756 Display Iterator
757 ***********************************************************************/
759 /* Function prototypes of this page. */
761 static XCharStruct *w32_per_char_metric P_ ((XFontStruct *,
762 wchar_t *, int));
763 static int w32_encode_char P_ ((int, wchar_t *, struct font_info *, int *));
766 /* Get metrics of character CHAR2B in FONT. Value is always non-null.
767 If CHAR2B is not contained in FONT, the font's default character
768 metric is returned. */
770 static int
771 w32_bdf_per_char_metric (font, char2b, dim, pcm)
772 XFontStruct *font;
773 wchar_t *char2b;
774 int dim;
775 XCharStruct * pcm;
777 glyph_metric * bdf_metric;
778 char buf[2];
780 if (dim == 1)
781 buf[0] = (char)(*char2b);
782 else
784 buf[0] = XCHAR2B_BYTE1 (char2b);
785 buf[1] = XCHAR2B_BYTE2 (char2b);
788 bdf_metric = w32_BDF_TextMetric (font->bdf, buf, dim);
790 if (bdf_metric)
792 pcm->width = bdf_metric->dwidth;
793 pcm->lbearing = bdf_metric->bbox;
794 pcm->rbearing = bdf_metric->dwidth
795 - (bdf_metric->bbox + bdf_metric->bbw);
796 pcm->ascent = bdf_metric->bboy + bdf_metric->bbh;
797 pcm->descent = -bdf_metric->bboy;
799 return 1;
801 return 0;
805 static int
806 w32_native_per_char_metric (font, char2b, font_type, pcm)
807 XFontStruct *font;
808 wchar_t *char2b;
809 enum w32_char_font_type font_type;
810 XCharStruct * pcm;
812 HDC hdc = GetDC (NULL);
813 HFONT old_font;
814 BOOL retval = FALSE;
816 xassert (font && char2b);
817 xassert (font->hfont);
818 xassert (font_type == UNICODE_FONT || font_type == ANSI_FONT);
820 old_font = SelectObject (hdc, font->hfont);
822 if ((font->tm.tmPitchAndFamily & TMPF_TRUETYPE) != 0)
824 ABC char_widths;
826 if (font_type == UNICODE_FONT)
827 retval = GetCharABCWidthsW (hdc, *char2b, *char2b, &char_widths);
828 else
829 retval = GetCharABCWidthsA (hdc, *char2b, *char2b, &char_widths);
831 if (retval)
833 #if 0
834 /* Disabled until we can find a way to get the right results
835 on all versions of Windows. */
837 /* Don't trust the ABC widths. For synthesized fonts they are
838 wrong, and so is the result of GetCharWidth()! */
839 int real_width;
840 GetCharWidth (hdc, *char2b, *char2b, &real_width);
841 #endif
842 pcm->width = char_widths.abcA + char_widths.abcB + char_widths.abcC;
843 #if 0
844 /* As far as I can tell, this is the best way to determine what
845 ExtTextOut will do with the broken font. */
846 if (pcm->width != real_width)
847 pcm->width = (pcm->width + real_width) / 2;
848 #endif
849 pcm->lbearing = char_widths.abcA;
850 pcm->rbearing = char_widths.abcA + char_widths.abcB;
851 pcm->ascent = FONT_BASE (font);
852 pcm->descent = FONT_DESCENT (font);
856 if (!retval)
858 /* Either font is not a True-type font, or GetCharABCWidthsW
859 failed (it is not supported on Windows 9x for instance), so we
860 can't determine the full info we would like. All is not lost
861 though - we can call GetTextExtentPoint32 to get rbearing and
862 deduce width based on the font's per-string overhang. lbearing
863 is assumed to be zero. */
865 /* TODO: Some Thai characters (and other composites if Windows
866 supports them) do have lbearing, and report their total width
867 as zero. Need some way of handling them when
868 GetCharABCWidthsW fails. */
869 SIZE sz;
871 if (font_type == UNICODE_FONT)
872 retval = GetTextExtentPoint32W (hdc, char2b, 1, &sz);
873 else
874 retval = GetTextExtentPoint32A (hdc, (char*)char2b, 1, &sz);
876 if (retval)
878 pcm->width = sz.cx - font->tm.tmOverhang;
879 pcm->rbearing = sz.cx;
880 pcm->lbearing = 0;
881 pcm->ascent = FONT_BASE (font);
882 pcm->descent = FONT_DESCENT (font);
887 if (pcm->width == 0 && (pcm->rbearing - pcm->lbearing) == 0)
889 retval = FALSE;
892 SelectObject (hdc, old_font);
893 ReleaseDC (NULL, hdc);
895 return retval;
899 static XCharStruct *
900 w32_per_char_metric (font, char2b, font_type)
901 XFontStruct *font;
902 wchar_t *char2b;
903 int /* enum w32_char_font_type */ font_type;
905 /* The result metric information. */
906 XCharStruct *pcm;
907 BOOL retval;
909 xassert (font && char2b);
911 /* TODO: This function is currently called through the RIF, and in
912 some cases font_type is UNKNOWN_FONT. We currently allow the
913 cached metrics to be used, which seems to work, but in cases
914 where font_type is UNKNOWN_FONT, we probably haven't encoded
915 char2b appropriately. All callers need checking to see what they
916 are passing. This is most likely to affect variable width fonts
917 outside the Latin-1 range, particularly in languages like Thai
918 that rely on rbearing and lbearing to provide composition. I
919 don't think that is working currently anyway, but we don't seem
920 to have anyone testing such languages on Windows. */
922 /* Handle the common cases quickly. */
923 if (!font->bdf && font->per_char == NULL)
924 /* TODO: determine whether char2b exists in font? */
925 return &font->max_bounds;
926 else if (!font->bdf && *char2b < 128)
927 return &font->per_char[*char2b];
929 xassert (font_type != UNKNOWN_FONT);
931 pcm = &font->scratch;
933 if (font_type == BDF_1D_FONT)
934 retval = w32_bdf_per_char_metric (font, char2b, 1, pcm);
935 else if (font_type == BDF_2D_FONT)
936 retval = w32_bdf_per_char_metric (font, char2b, 2, pcm);
937 else
938 retval = w32_native_per_char_metric (font, char2b, font_type, pcm);
940 if (retval)
941 return pcm;
943 return NULL;
946 void
947 w32_cache_char_metrics (font)
948 XFontStruct *font;
950 wchar_t char2b = L'x';
952 /* Cache char metrics for the common cases. */
953 if (font->bdf)
955 /* TODO: determine whether font is fixed-pitch. */
956 if (!w32_bdf_per_char_metric (font, &char2b, 1, &font->max_bounds))
958 /* Use the font width and height as max bounds, as not all BDF
959 fonts contain the letter 'x'. */
960 font->max_bounds.width = FONT_MAX_WIDTH (font);
961 font->max_bounds.lbearing = -font->bdf->llx;
962 font->max_bounds.rbearing = FONT_MAX_WIDTH (font) - font->bdf->urx;
963 font->max_bounds.ascent = FONT_BASE (font);
964 font->max_bounds.descent = FONT_DESCENT (font);
967 else
969 if (((font->tm.tmPitchAndFamily & TMPF_FIXED_PITCH) != 0)
970 /* Some fonts (eg DBCS fonts) are marked as fixed width even
971 though they contain characters of different widths. */
972 || (font->tm.tmMaxCharWidth != font->tm.tmAveCharWidth))
974 /* Font is not fixed pitch, so cache per_char info for the
975 ASCII characters. It would be much more work, and probably
976 not worth it, to cache other chars, since we may change
977 between using Unicode and ANSI text drawing functions at
978 run-time. */
979 int i;
981 font->per_char = xmalloc (128 * sizeof(XCharStruct));
982 for (i = 0; i < 128; i++)
984 char2b = i;
985 w32_native_per_char_metric (font, &char2b, ANSI_FONT,
986 &font->per_char[i]);
989 else
990 w32_native_per_char_metric (font, &char2b, ANSI_FONT,
991 &font->max_bounds);
996 /* Determine if a font is double byte. */
997 int w32_font_is_double_byte (XFontStruct *font)
999 return font->double_byte_p;
1003 static BOOL
1004 w32_use_unicode_for_codepage (codepage)
1005 int codepage;
1007 /* If the current codepage is supported, use Unicode for output. */
1008 return (w32_enable_unicode_output
1009 && codepage != CP_8BIT
1010 && (codepage == CP_UNICODE || IsValidCodePage (codepage)));
1013 /* Encode CHAR2B using encoding information from FONT_INFO. CHAR2B is
1014 the two-byte form of C. Encoding is returned in *CHAR2B. */
1016 static int /* enum w32_char_font_type */
1017 w32_encode_char (c, char2b, font_info, two_byte_p)
1018 int c;
1019 wchar_t *char2b;
1020 struct font_info *font_info;
1021 int * two_byte_p;
1023 int charset = CHAR_CHARSET (c);
1024 int codepage;
1025 int unicode_p = 0;
1026 int internal_two_byte_p = 0;
1028 XFontStruct *font = font_info->font;
1030 internal_two_byte_p = w32_font_is_double_byte (font);
1032 /* FONT_INFO may define a scheme by which to encode byte1 and byte2.
1033 This may be either a program in a special encoder language or a
1034 fixed encoding. */
1035 if (font_info->font_encoder)
1037 /* It's a program. */
1038 struct ccl_program *ccl = font_info->font_encoder;
1040 if (CHARSET_DIMENSION (charset) == 1)
1042 ccl->reg[0] = charset;
1043 ccl->reg[1] = XCHAR2B_BYTE2 (char2b);
1044 ccl->reg[2] = -1;
1046 else
1048 ccl->reg[0] = charset;
1049 ccl->reg[1] = XCHAR2B_BYTE1 (char2b);
1050 ccl->reg[2] = XCHAR2B_BYTE2 (char2b);
1053 ccl_driver (ccl, NULL, NULL, 0, 0, NULL);
1055 /* We assume that MSBs are appropriately set/reset by CCL
1056 program. */
1057 if (!internal_two_byte_p) /* 1-byte font */
1058 STORE_XCHAR2B (char2b, 0, ccl->reg[1]);
1059 else
1060 STORE_XCHAR2B (char2b, ccl->reg[1], ccl->reg[2]);
1062 else if (font_info->encoding[charset])
1064 /* Fixed encoding scheme. See fontset.h for the meaning of the
1065 encoding numbers. */
1066 int enc = font_info->encoding[charset];
1068 if ((enc == 1 || enc == 2)
1069 && CHARSET_DIMENSION (charset) == 2)
1070 STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b) | 0x80, XCHAR2B_BYTE2 (char2b));
1072 if (enc == 1 || enc == 3
1073 || (enc == 4 && CHARSET_DIMENSION (charset) == 1))
1074 STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b) | 0x80);
1075 else if (enc == 4)
1077 int sjis1, sjis2;
1079 ENCODE_SJIS (XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b),
1080 sjis1, sjis2);
1081 STORE_XCHAR2B (char2b, sjis1, sjis2);
1084 codepage = font_info->codepage;
1086 /* If charset is not ASCII or Latin-1, may need to move it into
1087 Unicode space. */
1088 if ( font && !font->bdf && w32_use_unicode_for_codepage (codepage)
1089 && charset != CHARSET_ASCII && charset != charset_latin_iso8859_1
1090 && charset != CHARSET_8_BIT_CONTROL && charset != CHARSET_8_BIT_GRAPHIC)
1092 char temp[3];
1093 temp[0] = XCHAR2B_BYTE1 (char2b);
1094 temp[1] = XCHAR2B_BYTE2 (char2b);
1095 temp[2] = '\0';
1096 if (codepage != CP_UNICODE)
1098 if (temp[0])
1099 MultiByteToWideChar (codepage, 0, temp, 2, char2b, 1);
1100 else
1101 MultiByteToWideChar (codepage, 0, temp+1, 1, char2b, 1);
1103 unicode_p = 1;
1104 internal_two_byte_p = 1;
1107 if (two_byte_p)
1108 *two_byte_p = internal_two_byte_p;
1110 if (!font)
1111 return UNKNOWN_FONT;
1112 else if (font->bdf && CHARSET_DIMENSION (charset) == 1)
1113 return BDF_1D_FONT;
1114 else if (font->bdf)
1115 return BDF_2D_FONT;
1116 else if (unicode_p)
1117 return UNICODE_FONT;
1118 else
1119 return ANSI_FONT;
1124 /***********************************************************************
1125 Glyph display
1126 ***********************************************************************/
1129 /* Encapsulate the different ways of displaying text under W32. */
1131 static void
1132 w32_text_out (s, x, y,chars,nchars)
1133 struct glyph_string * s;
1134 int x, y;
1135 wchar_t * chars;
1136 int nchars;
1138 int charset_dim = w32_font_is_double_byte (s->font) ? 2 : 1;
1139 if (s->font->bdf)
1140 w32_BDF_TextOut (s->font->bdf, s->hdc,
1141 x, y, (char *) chars, charset_dim,
1142 nchars * charset_dim, 0);
1143 else if (s->first_glyph->font_type == UNICODE_FONT)
1144 ExtTextOutW (s->hdc, x, y, 0, NULL, chars, nchars, NULL);
1145 else
1146 ExtTextOutA (s->hdc, x, y, 0, NULL, (char *) chars,
1147 nchars * charset_dim, NULL);
1152 static void x_set_glyph_string_clipping P_ ((struct glyph_string *));
1153 static void x_set_glyph_string_gc P_ ((struct glyph_string *));
1154 static void x_draw_glyph_string_background P_ ((struct glyph_string *,
1155 int));
1156 static void x_draw_glyph_string_foreground P_ ((struct glyph_string *));
1157 static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *));
1158 static void x_draw_glyph_string_box P_ ((struct glyph_string *));
1159 static void x_draw_glyph_string P_ ((struct glyph_string *));
1160 static void x_set_cursor_gc P_ ((struct glyph_string *));
1161 static void x_set_mode_line_face_gc P_ ((struct glyph_string *));
1162 static void x_set_mouse_face_gc P_ ((struct glyph_string *));
1163 static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
1164 static void w32_setup_relief_color P_ ((struct frame *, struct relief *,
1165 double, int, COLORREF));
1166 static void x_setup_relief_colors P_ ((struct glyph_string *));
1167 static void x_draw_image_glyph_string P_ ((struct glyph_string *));
1168 static void x_draw_image_relief P_ ((struct glyph_string *));
1169 static void x_draw_image_foreground P_ ((struct glyph_string *));
1170 static void w32_draw_image_foreground_1 P_ ((struct glyph_string *, HBITMAP));
1171 static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int,
1172 int, int, int));
1173 static void w32_draw_relief_rect P_ ((struct frame *, int, int, int, int,
1174 int, int, int, int, RECT *));
1175 static void w32_draw_box_rect P_ ((struct glyph_string *, int, int, int, int,
1176 int, int, int, RECT *));
1178 #if GLYPH_DEBUG
1179 static void x_check_font P_ ((struct frame *, XFontStruct *));
1180 #endif
1183 /* Set S->gc to a suitable GC for drawing glyph string S in cursor
1184 face. */
1186 static void
1187 x_set_cursor_gc (s)
1188 struct glyph_string *s;
1190 if (s->font == FRAME_FONT (s->f)
1191 && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
1192 && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
1193 && !s->cmp)
1194 s->gc = s->f->output_data.w32->cursor_gc;
1195 else
1197 /* Cursor on non-default face: must merge. */
1198 XGCValues xgcv;
1199 unsigned long mask;
1201 xgcv.background = s->f->output_data.w32->cursor_pixel;
1202 xgcv.foreground = s->face->background;
1204 /* If the glyph would be invisible, try a different foreground. */
1205 if (xgcv.foreground == xgcv.background)
1206 xgcv.foreground = s->face->foreground;
1207 if (xgcv.foreground == xgcv.background)
1208 xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
1209 if (xgcv.foreground == xgcv.background)
1210 xgcv.foreground = s->face->foreground;
1212 /* Make sure the cursor is distinct from text in this face. */
1213 if (xgcv.background == s->face->background
1214 && xgcv.foreground == s->face->foreground)
1216 xgcv.background = s->face->foreground;
1217 xgcv.foreground = s->face->background;
1220 IF_DEBUG (x_check_font (s->f, s->font));
1221 xgcv.font = s->font;
1222 mask = GCForeground | GCBackground | GCFont;
1224 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1225 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1226 mask, &xgcv);
1227 else
1228 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1229 = XCreateGC (NULL, s->window, mask, &xgcv);
1231 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1236 /* Set up S->gc of glyph string S for drawing text in mouse face. */
1238 static void
1239 x_set_mouse_face_gc (s)
1240 struct glyph_string *s;
1242 int face_id;
1243 struct face *face;
1245 /* What face has to be used last for the mouse face? */
1246 face_id = FRAME_W32_DISPLAY_INFO (s->f)->mouse_face_face_id;
1247 face = FACE_FROM_ID (s->f, face_id);
1248 if (face == NULL)
1249 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
1251 if (s->first_glyph->type == CHAR_GLYPH)
1252 face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch);
1253 else
1254 face_id = FACE_FOR_CHAR (s->f, face, 0);
1255 s->face = FACE_FROM_ID (s->f, face_id);
1256 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1258 /* If font in this face is same as S->font, use it. */
1259 if (s->font == s->face->font)
1260 s->gc = s->face->gc;
1261 else
1263 /* Otherwise construct scratch_cursor_gc with values from FACE
1264 but font FONT. */
1265 XGCValues xgcv;
1266 unsigned long mask;
1268 xgcv.background = s->face->background;
1269 xgcv.foreground = s->face->foreground;
1270 IF_DEBUG (x_check_font (s->f, s->font));
1271 xgcv.font = s->font;
1272 mask = GCForeground | GCBackground | GCFont;
1274 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1275 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1276 mask, &xgcv);
1277 else
1278 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1279 = XCreateGC (NULL, s->window, mask, &xgcv);
1281 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1284 xassert (s->gc != 0);
1288 /* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
1289 Faces to use in the mode line have already been computed when the
1290 matrix was built, so there isn't much to do, here. */
1292 static INLINE void
1293 x_set_mode_line_face_gc (s)
1294 struct glyph_string *s;
1296 s->gc = s->face->gc;
1300 /* Set S->gc of glyph string S for drawing that glyph string. Set
1301 S->stippled_p to a non-zero value if the face of S has a stipple
1302 pattern. */
1304 static INLINE void
1305 x_set_glyph_string_gc (s)
1306 struct glyph_string *s;
1308 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1310 if (s->hl == DRAW_NORMAL_TEXT)
1312 s->gc = s->face->gc;
1313 s->stippled_p = s->face->stipple != 0;
1315 else if (s->hl == DRAW_INVERSE_VIDEO)
1317 x_set_mode_line_face_gc (s);
1318 s->stippled_p = s->face->stipple != 0;
1320 else if (s->hl == DRAW_CURSOR)
1322 x_set_cursor_gc (s);
1323 s->stippled_p = 0;
1325 else if (s->hl == DRAW_MOUSE_FACE)
1327 x_set_mouse_face_gc (s);
1328 s->stippled_p = s->face->stipple != 0;
1330 else if (s->hl == DRAW_IMAGE_RAISED
1331 || s->hl == DRAW_IMAGE_SUNKEN)
1333 s->gc = s->face->gc;
1334 s->stippled_p = s->face->stipple != 0;
1336 else
1338 s->gc = s->face->gc;
1339 s->stippled_p = s->face->stipple != 0;
1342 /* GC must have been set. */
1343 xassert (s->gc != 0);
1347 /* Set clipping for output of glyph string S. S may be part of a mode
1348 line or menu if we don't have X toolkit support. */
1350 static INLINE void
1351 x_set_glyph_string_clipping (s)
1352 struct glyph_string *s;
1354 RECT r;
1355 get_glyph_string_clip_rect (s, &r);
1356 w32_set_clip_rectangle (s->hdc, &r);
1360 /* RIF:
1361 Compute left and right overhang of glyph string S. If S is a glyph
1362 string for a composition, assume overhangs don't exist. */
1364 static void
1365 w32_compute_glyph_string_overhangs (s)
1366 struct glyph_string *s;
1368 /* TODO: Windows does not appear to have a method for
1369 getting this info without getting the ABC widths for each
1370 individual character and working it out manually. */
1374 static void
1375 w32_get_glyph_overhangs (glyph, f, left, right)
1376 struct glyph *glyph;
1377 struct frame *f;
1378 int *left, *right;
1380 HDC hdc = get_frame_dc (f);
1381 /* Convert to unicode! */
1382 x_get_glyph_overhangs (glyph, f, left, right);
1383 release_frame_dc (f, hdc);
1387 /* Fill rectangle X, Y, W, H with background color of glyph string S. */
1389 static INLINE void
1390 x_clear_glyph_string_rect (s, x, y, w, h)
1391 struct glyph_string *s;
1392 int x, y, w, h;
1394 int real_x = x;
1395 int real_y = y;
1396 int real_w = w;
1397 int real_h = h;
1398 #if 0
1399 /* Take clipping into account. */
1400 if (s->gc->clip_mask == Rect)
1402 real_x = max (real_x, s->gc->clip_rectangle.left);
1403 real_y = max (real_y, s->gc->clip_rectangle.top);
1404 real_w = min (real_w, s->gc->clip_rectangle.right
1405 - s->gc->clip_rectangle.left);
1406 real_h = min (real_h, s->gc->clip_rectangle.bottom
1407 - s->gc->clip_rectangle.top);
1409 #endif
1410 w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
1411 real_w, real_h);
1415 /* Draw the background of glyph_string S. If S->background_filled_p
1416 is non-zero don't draw it. FORCE_P non-zero means draw the
1417 background even if it wouldn't be drawn normally. This is used
1418 when a string preceding S draws into the background of S, or S
1419 contains the first component of a composition. */
1421 static void
1422 x_draw_glyph_string_background (s, force_p)
1423 struct glyph_string *s;
1424 int force_p;
1426 /* Nothing to do if background has already been drawn or if it
1427 shouldn't be drawn in the first place. */
1428 if (!s->background_filled_p)
1430 int box_line_width = max (s->face->box_line_width, 0);
1432 #if 0 /* TODO: stipple */
1433 if (s->stippled_p)
1435 /* Fill background with a stipple pattern. */
1436 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
1437 XFillRectangle (s->display, s->window, s->gc, s->x,
1438 s->y + box_line_width,
1439 s->background_width,
1440 s->height - 2 * box_line_width);
1441 XSetFillStyle (s->display, s->gc, FillSolid);
1442 s->background_filled_p = 1;
1444 else
1445 #endif
1446 if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1447 || s->font_not_found_p
1448 || s->extends_to_end_of_line_p
1449 || s->font->bdf
1450 || force_p)
1452 x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1453 s->background_width,
1454 s->height - 2 * box_line_width);
1455 s->background_filled_p = 1;
1461 /* Draw the foreground of glyph string S. */
1463 static void
1464 x_draw_glyph_string_foreground (s)
1465 struct glyph_string *s;
1467 int i, x;
1468 HFONT old_font;
1470 /* If first glyph of S has a left box line, start drawing the text
1471 of S to the right of that box line. */
1472 if (s->face->box != FACE_NO_BOX
1473 && s->first_glyph->left_box_line_p)
1474 x = s->x + abs (s->face->box_line_width);
1475 else
1476 x = s->x;
1478 if (s->for_overlaps_p || (s->background_filled_p && s->hl != DRAW_CURSOR))
1479 SetBkMode (s->hdc, TRANSPARENT);
1480 else
1481 SetBkMode (s->hdc, OPAQUE);
1483 SetTextColor (s->hdc, s->gc->foreground);
1484 SetBkColor (s->hdc, s->gc->background);
1485 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1487 if (s->font && s->font->hfont)
1488 old_font = SelectObject (s->hdc, s->font->hfont);
1490 /* Draw characters of S as rectangles if S's font could not be
1491 loaded. */
1492 if (s->font_not_found_p)
1494 for (i = 0; i < s->nchars; ++i)
1496 struct glyph *g = s->first_glyph + i;
1498 w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
1499 s->height - 1);
1500 x += g->pixel_width;
1503 else
1505 char *char1b = (char *) s->char2b;
1506 int boff = s->font_info->baseline_offset;
1508 if (s->font_info->vertical_centering)
1509 boff = VCENTER_BASELINE_OFFSET (s->font, s->f) - boff;
1511 /* If we can use 8-bit functions, condense S->char2b. */
1512 if (!s->two_byte_p)
1513 for (i = 0; i < s->nchars; ++i)
1514 char1b[i] = XCHAR2B_BYTE2 (&s->char2b[i]);
1516 /* Draw text with TextOut and friends. */
1517 w32_text_out (s, x, s->ybase - boff, s->char2b, s->nchars);
1519 if (s->face->overstrike)
1521 /* For overstriking (to simulate bold-face), draw the
1522 characters again shifted to the right by one pixel. */
1523 w32_text_out (s, x + 1, s->ybase - boff, s->char2b, s->nchars);
1526 if (s->font && s->font->hfont)
1527 SelectObject (s->hdc, old_font);
1530 /* Draw the foreground of composite glyph string S. */
1532 static void
1533 x_draw_composite_glyph_string_foreground (s)
1534 struct glyph_string *s;
1536 int i, x;
1537 HFONT old_font;
1539 /* If first glyph of S has a left box line, start drawing the text
1540 of S to the right of that box line. */
1541 if (s->face->box != FACE_NO_BOX
1542 && s->first_glyph->left_box_line_p)
1543 x = s->x + abs (s->face->box_line_width);
1544 else
1545 x = s->x;
1547 /* S is a glyph string for a composition. S->gidx is the index of
1548 the first character drawn for glyphs of this composition.
1549 S->gidx == 0 means we are drawing the very first character of
1550 this composition. */
1552 SetTextColor (s->hdc, s->gc->foreground);
1553 SetBkColor (s->hdc, s->gc->background);
1554 SetBkMode (s->hdc, TRANSPARENT);
1555 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1557 if (s->font && s->font->hfont)
1558 old_font = SelectObject (s->hdc, s->font->hfont);
1560 /* Draw a rectangle for the composition if the font for the very
1561 first character of the composition could not be loaded. */
1562 if (s->font_not_found_p)
1564 if (s->gidx == 0)
1565 w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
1566 s->height - 1);
1568 else
1570 for (i = 0; i < s->nchars; i++, ++s->gidx)
1572 w32_text_out (s, x + s->cmp->offsets[s->gidx * 2],
1573 s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
1574 s->char2b + i, 1);
1575 if (s->face->overstrike)
1576 w32_text_out (s, x + s->cmp->offsets[s->gidx * 2] + 1,
1577 s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
1578 s->char2b + i, 1);
1582 if (s->font && s->font->hfont)
1583 SelectObject (s->hdc, old_font);
1587 /* Brightness beyond which a color won't have its highlight brightness
1588 boosted.
1590 Nominally, highlight colors for `3d' faces are calculated by
1591 brightening an object's color by a constant scale factor, but this
1592 doesn't yield good results for dark colors, so for colors who's
1593 brightness is less than this value (on a scale of 0-255) have to
1594 use an additional additive factor.
1596 The value here is set so that the default menu-bar/mode-line color
1597 (grey75) will not have its highlights changed at all. */
1598 #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 187
1601 /* Allocate a color which is lighter or darker than *COLOR by FACTOR
1602 or DELTA. Try a color with RGB values multiplied by FACTOR first.
1603 If this produces the same color as COLOR, try a color where all RGB
1604 values have DELTA added. Return the allocated color in *COLOR.
1605 DISPLAY is the X display, CMAP is the colormap to operate on.
1606 Value is non-zero if successful. */
1608 static int
1609 w32_alloc_lighter_color (f, color, factor, delta)
1610 struct frame *f;
1611 COLORREF *color;
1612 double factor;
1613 int delta;
1615 COLORREF new;
1616 long bright;
1618 /* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
1619 delta /= 256;
1621 /* Change RGB values by specified FACTOR. Avoid overflow! */
1622 xassert (factor >= 0);
1623 new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
1624 min (0xff, factor * GetGValue (*color)),
1625 min (0xff, factor * GetBValue (*color)));
1627 /* Calculate brightness of COLOR. */
1628 bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
1629 + GetBValue (*color)) / 6;
1631 /* We only boost colors that are darker than
1632 HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
1633 if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
1634 /* Make an additive adjustment to NEW, because it's dark enough so
1635 that scaling by FACTOR alone isn't enough. */
1637 /* How far below the limit this color is (0 - 1, 1 being darker). */
1638 double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
1639 /* The additive adjustment. */
1640 int min_delta = delta * dimness * factor / 2;
1642 if (factor < 1)
1643 new = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
1644 max (0, min (0xff, min_delta - GetGValue (*color))),
1645 max (0, min (0xff, min_delta - GetBValue (*color))));
1646 else
1647 new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
1648 max (0, min (0xff, min_delta + GetGValue (*color))),
1649 max (0, min (0xff, min_delta + GetBValue (*color))));
1652 if (new == *color)
1653 new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
1654 max (0, min (0xff, delta + GetGValue (*color))),
1655 max (0, min (0xff, delta + GetBValue (*color))));
1657 /* TODO: Map to palette and retry with delta if same? */
1658 /* TODO: Free colors (if using palette)? */
1660 if (new == *color)
1661 return 0;
1663 *color = new;
1665 return 1;
1669 /* Set up the foreground color for drawing relief lines of glyph
1670 string S. RELIEF is a pointer to a struct relief containing the GC
1671 with which lines will be drawn. Use a color that is FACTOR or
1672 DELTA lighter or darker than the relief's background which is found
1673 in S->f->output_data.x->relief_background. If such a color cannot
1674 be allocated, use DEFAULT_PIXEL, instead. */
1676 static void
1677 w32_setup_relief_color (f, relief, factor, delta, default_pixel)
1678 struct frame *f;
1679 struct relief *relief;
1680 double factor;
1681 int delta;
1682 COLORREF default_pixel;
1684 XGCValues xgcv;
1685 struct w32_output *di = f->output_data.w32;
1686 unsigned long mask = GCForeground;
1687 COLORREF pixel;
1688 COLORREF background = di->relief_background;
1689 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
1691 /* TODO: Free colors (if using palette)? */
1693 /* Allocate new color. */
1694 xgcv.foreground = default_pixel;
1695 pixel = background;
1696 if (w32_alloc_lighter_color (f, &pixel, factor, delta))
1698 relief->allocated_p = 1;
1699 xgcv.foreground = relief->pixel = pixel;
1702 if (relief->gc == 0)
1704 #if 0 /* TODO: stipple */
1705 xgcv.stipple = dpyinfo->gray;
1706 mask |= GCStipple;
1707 #endif
1708 relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
1710 else
1711 XChangeGC (NULL, relief->gc, mask, &xgcv);
1715 /* Set up colors for the relief lines around glyph string S. */
1717 static void
1718 x_setup_relief_colors (s)
1719 struct glyph_string *s;
1721 struct w32_output *di = s->f->output_data.w32;
1722 COLORREF color;
1724 if (s->face->use_box_color_for_shadows_p)
1725 color = s->face->box_color;
1726 else if (s->first_glyph->type == IMAGE_GLYPH
1727 && s->img->pixmap
1728 && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
1729 color = IMAGE_BACKGROUND (s->img, s->f, 0);
1730 else
1731 color = s->gc->background;
1733 if (di->white_relief.gc == 0
1734 || color != di->relief_background)
1736 di->relief_background = color;
1737 w32_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
1738 WHITE_PIX_DEFAULT (s->f));
1739 w32_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
1740 BLACK_PIX_DEFAULT (s->f));
1745 /* Draw a relief on frame F inside the rectangle given by LEFT_X,
1746 TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief
1747 to draw, it must be >= 0. RAISED_P non-zero means draw a raised
1748 relief. LEFT_P non-zero means draw a relief on the left side of
1749 the rectangle. RIGHT_P non-zero means draw a relief on the right
1750 side of the rectangle. CLIP_RECT is the clipping rectangle to use
1751 when drawing. */
1753 static void
1754 w32_draw_relief_rect (f, left_x, top_y, right_x, bottom_y, width,
1755 raised_p, left_p, right_p, clip_rect)
1756 struct frame *f;
1757 int left_x, top_y, right_x, bottom_y, width, left_p, right_p, raised_p;
1758 RECT *clip_rect;
1760 int i;
1761 XGCValues gc;
1762 HDC hdc = get_frame_dc (f);
1764 if (raised_p)
1765 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1766 else
1767 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1769 w32_set_clip_rectangle (hdc, clip_rect);
1771 /* Top. */
1772 for (i = 0; i < width; ++i)
1773 w32_fill_area (f, hdc, gc.foreground,
1774 left_x + i * left_p, top_y + i,
1775 right_x - left_x - i * (left_p + right_p ) + 1, 1);
1777 /* Left. */
1778 if (left_p)
1779 for (i = 0; i < width; ++i)
1780 w32_fill_area (f, hdc, gc.foreground,
1781 left_x + i, top_y + i, 1,
1782 bottom_y - top_y - 2 * i + 1);
1784 if (raised_p)
1785 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1786 else
1787 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1789 /* Bottom. */
1790 for (i = 0; i < width; ++i)
1791 w32_fill_area (f, hdc, gc.foreground,
1792 left_x + i * left_p, bottom_y - i,
1793 right_x - left_x - i * (left_p + right_p) + 1, 1);
1795 /* Right. */
1796 if (right_p)
1797 for (i = 0; i < width; ++i)
1798 w32_fill_area (f, hdc, gc.foreground,
1799 right_x - i, top_y + i + 1, 1,
1800 bottom_y - top_y - 2 * i - 1);
1802 w32_set_clip_rectangle (hdc, NULL);
1804 release_frame_dc (f, hdc);
1808 /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
1809 RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
1810 draw, it must be >= 0. LEFT_P non-zero means draw a line on the
1811 left side of the rectangle. RIGHT_P non-zero means draw a line
1812 on the right side of the rectangle. CLIP_RECT is the clipping
1813 rectangle to use when drawing. */
1815 static void
1816 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1817 left_p, right_p, clip_rect)
1818 struct glyph_string *s;
1819 int left_x, top_y, right_x, bottom_y, width, left_p, right_p;
1820 RECT *clip_rect;
1822 w32_set_clip_rectangle (s->hdc, clip_rect);
1824 /* Top. */
1825 w32_fill_area (s->f, s->hdc, s->face->box_color,
1826 left_x, top_y, right_x - left_x + 1, width);
1828 /* Left. */
1829 if (left_p)
1831 w32_fill_area (s->f, s->hdc, s->face->box_color,
1832 left_x, top_y, width, bottom_y - top_y + 1);
1835 /* Bottom. */
1836 w32_fill_area (s->f, s->hdc, s->face->box_color,
1837 left_x, bottom_y - width + 1, right_x - left_x + 1, width);
1839 /* Right. */
1840 if (right_p)
1842 w32_fill_area (s->f, s->hdc, s->face->box_color,
1843 right_x - width + 1, top_y, width, bottom_y - top_y + 1);
1846 w32_set_clip_rectangle (s->hdc, NULL);
1850 /* Draw a box around glyph string S. */
1852 static void
1853 x_draw_glyph_string_box (s)
1854 struct glyph_string *s;
1856 int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
1857 int left_p, right_p;
1858 struct glyph *last_glyph;
1859 RECT clip_rect;
1861 last_x = window_box_right (s->w, s->area);
1862 if (s->row->full_width_p
1863 && !s->w->pseudo_window_p)
1865 last_x += WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH (s->w);
1866 if (s->area != RIGHT_MARGIN_AREA
1867 || WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (s->w))
1868 last_x += WINDOW_RIGHT_FRINGE_WIDTH (s->w);
1871 /* The glyph that may have a right box line. */
1872 last_glyph = (s->cmp || s->img
1873 ? s->first_glyph
1874 : s->first_glyph + s->nchars - 1);
1876 width = abs (s->face->box_line_width);
1877 raised_p = s->face->box == FACE_RAISED_BOX;
1878 left_x = s->x;
1879 right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
1880 ? last_x - 1
1881 : min (last_x, s->x + s->background_width) - 1));
1882 top_y = s->y;
1883 bottom_y = top_y + s->height - 1;
1885 left_p = (s->first_glyph->left_box_line_p
1886 || (s->hl == DRAW_MOUSE_FACE
1887 && (s->prev == NULL
1888 || s->prev->hl != s->hl)));
1889 right_p = (last_glyph->right_box_line_p
1890 || (s->hl == DRAW_MOUSE_FACE
1891 && (s->next == NULL
1892 || s->next->hl != s->hl)));
1894 get_glyph_string_clip_rect (s, &clip_rect);
1896 if (s->face->box == FACE_SIMPLE_BOX)
1897 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1898 left_p, right_p, &clip_rect);
1899 else
1901 x_setup_relief_colors (s);
1902 w32_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
1903 width, raised_p, left_p, right_p, &clip_rect);
1908 /* Draw foreground of image glyph string S. */
1910 static void
1911 x_draw_image_foreground (s)
1912 struct glyph_string *s;
1914 int x;
1915 int y = s->ybase - image_ascent (s->img, s->face);
1917 /* If first glyph of S has a left box line, start drawing it to the
1918 right of that line. */
1919 if (s->face->box != FACE_NO_BOX
1920 && s->first_glyph->left_box_line_p)
1921 x = s->x + abs (s->face->box_line_width);
1922 else
1923 x = s->x;
1925 /* If there is a margin around the image, adjust x- and y-position
1926 by that margin. */
1927 x += s->img->hmargin;
1928 y += s->img->vmargin;
1930 SaveDC (s->hdc);
1932 if (s->img->pixmap)
1934 HDC compat_hdc = CreateCompatibleDC (s->hdc);
1935 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1936 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
1937 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1938 SetBkColor (compat_hdc, RGB (255, 255, 255));
1939 SetTextColor (s->hdc, RGB (0, 0, 0));
1940 x_set_glyph_string_clipping (s);
1942 if (s->img->mask)
1944 HDC mask_dc = CreateCompatibleDC (s->hdc);
1945 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1947 SetTextColor (s->hdc, RGB (255, 255, 255));
1948 SetBkColor (s->hdc, RGB (0, 0, 0));
1950 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1951 compat_hdc, 0, 0, SRCINVERT);
1952 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1953 mask_dc, 0, 0, SRCAND);
1954 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1955 compat_hdc, 0, 0, SRCINVERT);
1957 SelectObject (mask_dc, mask_orig_obj);
1958 DeleteDC (mask_dc);
1960 else
1962 SetTextColor (s->hdc, s->gc->foreground);
1963 SetBkColor (s->hdc, s->gc->background);
1965 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1966 compat_hdc, 0, 0, SRCCOPY);
1968 /* When the image has a mask, we can expect that at
1969 least part of a mouse highlight or a block cursor will
1970 be visible. If the image doesn't have a mask, make
1971 a block cursor visible by drawing a rectangle around
1972 the image. I believe it's looking better if we do
1973 nothing here for mouse-face. */
1974 if (s->hl == DRAW_CURSOR)
1976 int r = s->img->relief;
1977 if (r < 0) r = -r;
1978 w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
1979 s->img->width + r*2 - 1, s->img->height + r*2 - 1);
1983 w32_set_clip_rectangle (s->hdc, NULL);
1984 SelectObject (s->hdc, orig_brush);
1985 DeleteObject (fg_brush);
1986 SelectObject (compat_hdc, orig_obj);
1987 DeleteDC (compat_hdc);
1989 else
1990 w32_draw_rectangle (s->hdc, s->gc, x, y, s->img->width -1,
1991 s->img->height - 1);
1993 RestoreDC (s->hdc ,-1);
1998 /* Draw a relief around the image glyph string S. */
2000 static void
2001 x_draw_image_relief (s)
2002 struct glyph_string *s;
2004 int x0, y0, x1, y1, thick, raised_p;
2005 RECT r;
2006 int x;
2007 int y = s->ybase - image_ascent (s->img, s->face);
2009 /* If first glyph of S has a left box line, start drawing it to the
2010 right of that line. */
2011 if (s->face->box != FACE_NO_BOX
2012 && s->first_glyph->left_box_line_p)
2013 x = s->x + abs (s->face->box_line_width);
2014 else
2015 x = s->x;
2017 /* If there is a margin around the image, adjust x- and y-position
2018 by that margin. */
2019 x += s->img->hmargin;
2020 y += s->img->vmargin;
2022 if (s->hl == DRAW_IMAGE_SUNKEN
2023 || s->hl == DRAW_IMAGE_RAISED)
2025 thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
2026 raised_p = s->hl == DRAW_IMAGE_RAISED;
2028 else
2030 thick = abs (s->img->relief);
2031 raised_p = s->img->relief > 0;
2034 x0 = x - thick;
2035 y0 = y - thick;
2036 x1 = x + s->img->width + thick - 1;
2037 y1 = y + s->img->height + thick - 1;
2039 x_setup_relief_colors (s);
2040 get_glyph_string_clip_rect (s, &r);
2041 w32_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p, 1, 1, &r);
2045 /* Draw the foreground of image glyph string S to PIXMAP. */
2047 static void
2048 w32_draw_image_foreground_1 (s, pixmap)
2049 struct glyph_string *s;
2050 HBITMAP pixmap;
2052 HDC hdc = CreateCompatibleDC (s->hdc);
2053 HGDIOBJ orig_hdc_obj = SelectObject (hdc, pixmap);
2054 int x;
2055 int y = s->ybase - s->y - image_ascent (s->img, s->face);
2057 /* If first glyph of S has a left box line, start drawing it to the
2058 right of that line. */
2059 if (s->face->box != FACE_NO_BOX
2060 && s->first_glyph->left_box_line_p)
2061 x = abs (s->face->box_line_width);
2062 else
2063 x = 0;
2065 /* If there is a margin around the image, adjust x- and y-position
2066 by that margin. */
2067 x += s->img->hmargin;
2068 y += s->img->vmargin;
2070 if (s->img->pixmap)
2072 HDC compat_hdc = CreateCompatibleDC (hdc);
2073 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2074 HBRUSH orig_brush = SelectObject (hdc, fg_brush);
2075 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
2077 if (s->img->mask)
2079 HDC mask_dc = CreateCompatibleDC (hdc);
2080 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
2082 SetTextColor (hdc, RGB (0, 0, 0));
2083 SetBkColor (hdc, RGB (255, 255, 255));
2084 BitBlt (hdc, x, y, s->img->width, s->img->height,
2085 compat_hdc, 0, 0, SRCINVERT);
2086 BitBlt (hdc, x, y, s->img->width, s->img->height,
2087 mask_dc, 0, 0, SRCAND);
2088 BitBlt (hdc, x, y, s->img->width, s->img->height,
2089 compat_hdc, 0, 0, SRCINVERT);
2091 SelectObject (mask_dc, mask_orig_obj);
2092 DeleteDC (mask_dc);
2094 else
2096 SetTextColor (hdc, s->gc->foreground);
2097 SetBkColor (hdc, s->gc->background);
2099 BitBlt (hdc, x, y, s->img->width, s->img->height,
2100 compat_hdc, 0, 0, SRCCOPY);
2102 /* When the image has a mask, we can expect that at
2103 least part of a mouse highlight or a block cursor will
2104 be visible. If the image doesn't have a mask, make
2105 a block cursor visible by drawing a rectangle around
2106 the image. I believe it's looking better if we do
2107 nothing here for mouse-face. */
2108 if (s->hl == DRAW_CURSOR)
2110 int r = s->img->relief;
2111 if (r < 0) r = -r;
2112 w32_draw_rectangle (hdc, s->gc, x - r, y - r ,
2113 s->img->width + r*2 - 1, s->img->height + r*2 - 1);
2117 SelectObject (hdc, orig_brush);
2118 DeleteObject (fg_brush);
2119 SelectObject (compat_hdc, orig_obj);
2120 DeleteDC (compat_hdc);
2122 else
2123 w32_draw_rectangle (hdc, s->gc, x, y, s->img->width - 1,
2124 s->img->height - 1);
2126 SelectObject (hdc, orig_hdc_obj);
2127 DeleteDC (hdc);
2131 /* Draw part of the background of glyph string S. X, Y, W, and H
2132 give the rectangle to draw. */
2134 static void
2135 x_draw_glyph_string_bg_rect (s, x, y, w, h)
2136 struct glyph_string *s;
2137 int x, y, w, h;
2139 #if 0 /* TODO: stipple */
2140 if (s->stippled_p)
2142 /* Fill background with a stipple pattern. */
2143 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2144 XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
2145 XSetFillStyle (s->display, s->gc, FillSolid);
2147 else
2148 #endif
2149 x_clear_glyph_string_rect (s, x, y, w, h);
2153 /* Draw image glyph string S.
2155 s->y
2156 s->x +-------------------------
2157 | s->face->box
2159 | +-------------------------
2160 | | s->img->vmargin
2162 | | +-------------------
2163 | | | the image
2167 static void
2168 x_draw_image_glyph_string (s)
2169 struct glyph_string *s;
2171 int x, y;
2172 int box_line_hwidth = abs (s->face->box_line_width);
2173 int box_line_vwidth = max (s->face->box_line_width, 0);
2174 int height;
2175 HBITMAP pixmap = 0;
2177 height = s->height - 2 * box_line_vwidth;
2179 /* Fill background with face under the image. Do it only if row is
2180 taller than image or if image has a clip mask to reduce
2181 flickering. */
2182 s->stippled_p = s->face->stipple != 0;
2183 if (height > s->img->height
2184 || s->img->hmargin
2185 || s->img->vmargin
2186 || s->img->mask
2187 || s->img->pixmap == 0
2188 || s->width != s->background_width)
2190 if (box_line_hwidth && s->first_glyph->left_box_line_p)
2191 x = s->x + box_line_hwidth;
2192 else
2193 x = s->x;
2195 y = s->y + box_line_vwidth;
2196 #if 0 /* TODO: figure out if we need to do this on Windows. */
2197 if (s->img->mask)
2199 /* Create a pixmap as large as the glyph string. Fill it
2200 with the background color. Copy the image to it, using
2201 its mask. Copy the temporary pixmap to the display. */
2202 Screen *screen = FRAME_X_SCREEN (s->f);
2203 int depth = DefaultDepthOfScreen (screen);
2205 /* Create a pixmap as large as the glyph string. */
2206 pixmap = XCreatePixmap (s->display, s->window,
2207 s->background_width,
2208 s->height, depth);
2210 /* Don't clip in the following because we're working on the
2211 pixmap. */
2212 XSetClipMask (s->display, s->gc, None);
2214 /* Fill the pixmap with the background color/stipple. */
2215 if (s->stippled_p)
2217 /* Fill background with a stipple pattern. */
2218 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2219 XFillRectangle (s->display, pixmap, s->gc,
2220 0, 0, s->background_width, s->height);
2221 XSetFillStyle (s->display, s->gc, FillSolid);
2223 else
2225 XGCValues xgcv;
2226 XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
2227 &xgcv);
2228 XSetForeground (s->display, s->gc, xgcv.background);
2229 XFillRectangle (s->display, pixmap, s->gc,
2230 0, 0, s->background_width, s->height);
2231 XSetForeground (s->display, s->gc, xgcv.foreground);
2234 else
2235 #endif
2236 x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
2238 s->background_filled_p = 1;
2241 /* Draw the foreground. */
2242 if (pixmap != 0)
2244 w32_draw_image_foreground_1 (s, pixmap);
2245 x_set_glyph_string_clipping (s);
2247 HDC compat_hdc = CreateCompatibleDC (s->hdc);
2248 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2249 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
2250 HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
2252 SetTextColor (s->hdc, s->gc->foreground);
2253 SetBkColor (s->hdc, s->gc->background);
2254 BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
2255 compat_hdc, 0, 0, SRCCOPY);
2257 SelectObject (s->hdc, orig_brush);
2258 DeleteObject (fg_brush);
2259 SelectObject (compat_hdc, orig_obj);
2260 DeleteDC (compat_hdc);
2262 DeleteObject (pixmap);
2263 pixmap = 0;
2265 else
2266 x_draw_image_foreground (s);
2268 /* If we must draw a relief around the image, do it. */
2269 if (s->img->relief
2270 || s->hl == DRAW_IMAGE_RAISED
2271 || s->hl == DRAW_IMAGE_SUNKEN)
2272 x_draw_image_relief (s);
2276 /* Draw stretch glyph string S. */
2278 static void
2279 x_draw_stretch_glyph_string (s)
2280 struct glyph_string *s;
2282 xassert (s->first_glyph->type == STRETCH_GLYPH);
2283 s->stippled_p = s->face->stipple != 0;
2285 if (s->hl == DRAW_CURSOR
2286 && !x_stretch_cursor_p)
2288 /* If `x-stretch-block-cursor' is nil, don't draw a block cursor
2289 as wide as the stretch glyph. */
2290 int width = min (FRAME_COLUMN_WIDTH (s->f), s->background_width);
2292 /* Draw cursor. */
2293 x_draw_glyph_string_bg_rect (s, s->x, s->y, width, s->height);
2295 /* Clear rest using the GC of the original non-cursor face. */
2296 if (width < s->background_width)
2298 XGCValues *gc = s->face->gc;
2299 int x = s->x + width, y = s->y;
2300 int w = s->background_width - width, h = s->height;
2301 RECT r;
2302 HDC hdc = s->hdc;
2304 if (s->row->mouse_face_p
2305 && cursor_in_mouse_face_p (s->w))
2307 x_set_mouse_face_gc (s);
2308 gc = s->gc;
2310 else
2311 gc = s->face->gc;
2313 get_glyph_string_clip_rect (s, &r);
2314 w32_set_clip_rectangle (hdc, &r);
2316 #if 0 /* TODO: stipple */
2317 if (s->face->stipple)
2319 /* Fill background with a stipple pattern. */
2320 XSetFillStyle (s->display, gc, FillOpaqueStippled);
2321 XFillRectangle (s->display, s->window, gc, x, y, w, h);
2322 XSetFillStyle (s->display, gc, FillSolid);
2324 else
2325 #endif
2327 w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
2331 else if (!s->background_filled_p)
2332 x_draw_glyph_string_bg_rect (s, s->x, s->y, s->background_width,
2333 s->height);
2335 s->background_filled_p = 1;
2339 /* Draw glyph string S. */
2341 static void
2342 x_draw_glyph_string (s)
2343 struct glyph_string *s;
2345 int relief_drawn_p = 0;
2347 /* If S draws into the background of its successor, draw the
2348 background of the successor first so that S can draw into it.
2349 This makes S->next use XDrawString instead of XDrawImageString. */
2350 if (s->next && s->right_overhang && !s->for_overlaps_p)
2352 xassert (s->next->img == NULL);
2353 x_set_glyph_string_gc (s->next);
2354 x_set_glyph_string_clipping (s->next);
2355 x_draw_glyph_string_background (s->next, 1);
2358 /* Set up S->gc, set clipping and draw S. */
2359 x_set_glyph_string_gc (s);
2361 /* Draw relief (if any) in advance for char/composition so that the
2362 glyph string can be drawn over it. */
2363 if (!s->for_overlaps_p
2364 && s->face->box != FACE_NO_BOX
2365 && (s->first_glyph->type == CHAR_GLYPH
2366 || s->first_glyph->type == COMPOSITE_GLYPH))
2369 x_set_glyph_string_clipping (s);
2370 x_draw_glyph_string_background (s, 1);
2371 x_draw_glyph_string_box (s);
2372 x_set_glyph_string_clipping (s);
2373 relief_drawn_p = 1;
2375 else
2376 x_set_glyph_string_clipping (s);
2378 switch (s->first_glyph->type)
2380 case IMAGE_GLYPH:
2381 x_draw_image_glyph_string (s);
2382 break;
2384 case STRETCH_GLYPH:
2385 x_draw_stretch_glyph_string (s);
2386 break;
2388 case CHAR_GLYPH:
2389 if (s->for_overlaps_p)
2390 s->background_filled_p = 1;
2391 else
2392 x_draw_glyph_string_background (s, 0);
2393 x_draw_glyph_string_foreground (s);
2394 break;
2396 case COMPOSITE_GLYPH:
2397 if (s->for_overlaps_p || s->gidx > 0)
2398 s->background_filled_p = 1;
2399 else
2400 x_draw_glyph_string_background (s, 1);
2401 x_draw_composite_glyph_string_foreground (s);
2402 break;
2404 default:
2405 abort ();
2408 if (!s->for_overlaps_p)
2410 /* Draw underline. */
2411 if (s->face->underline_p
2412 && (s->font->bdf || !s->font->tm.tmUnderlined))
2414 unsigned long h = 1;
2415 unsigned long dy = s->height - h;
2417 /* TODO: Use font information for positioning and thickness
2418 of underline. See OUTLINETEXTMETRIC, and xterm.c. */
2419 if (s->face->underline_defaulted_p)
2421 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2422 s->y + dy, s->width, 1);
2424 else
2426 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2427 s->y + dy, s->width, 1);
2431 /* Draw overline. */
2432 if (s->face->overline_p)
2434 unsigned long dy = 0, h = 1;
2436 if (s->face->overline_color_defaulted_p)
2438 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2439 s->y + dy, s->width, h);
2441 else
2443 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2444 s->y + dy, s->width, h);
2448 /* Draw strike-through. */
2449 if (s->face->strike_through_p
2450 && (s->font->bdf || !s->font->tm.tmStruckOut))
2452 unsigned long h = 1;
2453 unsigned long dy = (s->height - h) / 2;
2455 if (s->face->strike_through_color_defaulted_p)
2457 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
2458 s->width, h);
2460 else
2462 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2463 s->y + dy, s->width, h);
2467 /* Draw relief. */
2468 if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
2469 x_draw_glyph_string_box (s);
2472 /* Reset clipping. */
2473 w32_set_clip_rectangle (s->hdc, NULL);
2477 /* Shift display to make room for inserted glyphs. */
2479 void
2480 w32_shift_glyphs_for_insert (f, x, y, width, height, shift_by)
2481 struct frame *f;
2482 int x, y, width, height, shift_by;
2484 HDC hdc;
2486 hdc = get_frame_dc (f);
2487 BitBlt (hdc, x + shift_by, y, width, height,
2488 hdc, x, y, SRCCOPY);
2490 release_frame_dc (f, hdc);
2494 /* Delete N glyphs at the nominal cursor position. Not implemented
2495 for X frames. */
2497 static void
2498 x_delete_glyphs (n)
2499 register int n;
2501 struct frame *f;
2503 if (updating_frame)
2504 f = updating_frame;
2505 else
2506 f = SELECTED_FRAME ();
2508 if (! FRAME_W32_P (f))
2509 return;
2511 abort ();
2515 /* Clear entire frame. If updating_frame is non-null, clear that
2516 frame. Otherwise clear the selected frame. */
2518 static void
2519 x_clear_frame ()
2521 struct frame *f;
2523 if (updating_frame)
2524 f = updating_frame;
2525 else
2526 f = SELECTED_FRAME ();
2528 if (! FRAME_W32_P (f))
2529 return;
2531 /* Clearing the frame will erase any cursor, so mark them all as no
2532 longer visible. */
2533 mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2534 output_cursor.hpos = output_cursor.vpos = 0;
2535 output_cursor.x = -1;
2537 /* We don't set the output cursor here because there will always
2538 follow an explicit cursor_to. */
2539 BLOCK_INPUT;
2541 w32_clear_window (f);
2543 /* We have to clear the scroll bars, too. If we have changed
2544 colors or something like that, then they should be notified. */
2545 x_scroll_bar_clear (f);
2547 UNBLOCK_INPUT;
2551 /* Make audible bell. */
2553 static void
2554 w32_ring_bell (void)
2556 struct frame *f;
2558 f = SELECTED_FRAME ();
2560 BLOCK_INPUT;
2562 if (FRAME_W32_P (f) && visible_bell)
2564 int i;
2565 HWND hwnd = FRAME_W32_WINDOW (SELECTED_FRAME ());
2567 for (i = 0; i < 5; i++)
2569 FlashWindow (hwnd, TRUE);
2570 Sleep (10);
2572 FlashWindow (hwnd, FALSE);
2574 else
2575 w32_sys_ring_bell ();
2577 UNBLOCK_INPUT;
2581 /* Specify how many text lines, from the top of the window,
2582 should be affected by insert-lines and delete-lines operations.
2583 This, and those operations, are used only within an update
2584 that is bounded by calls to x_update_begin and x_update_end. */
2586 static void
2587 w32_set_terminal_window (n)
2588 register int n;
2590 /* This function intentionally left blank. */
2594 /***********************************************************************
2595 Line Dance
2596 ***********************************************************************/
2598 /* Perform an insert-lines or delete-lines operation, inserting N
2599 lines or deleting -N lines at vertical position VPOS. */
2601 static void
2602 x_ins_del_lines (vpos, n)
2603 int vpos, n;
2605 struct frame *f;
2607 if (updating_frame)
2608 f = updating_frame;
2609 else
2610 f = SELECTED_FRAME ();
2612 if (! FRAME_W32_P (f))
2613 return;
2615 abort ();
2619 /* Scroll part of the display as described by RUN. */
2621 static void
2622 x_scroll_run (w, run)
2623 struct window *w;
2624 struct run *run;
2626 struct frame *f = XFRAME (w->frame);
2627 int x, y, width, height, from_y, to_y, bottom_y;
2628 HWND hwnd = FRAME_W32_WINDOW (f);
2629 HRGN expect_dirty;
2631 /* Get frame-relative bounding box of the text display area of W,
2632 without mode lines. Include in this box the left and right
2633 fringes of W. */
2634 window_box (w, -1, &x, &y, &width, &height);
2636 from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2637 to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2638 bottom_y = y + height;
2640 if (to_y < from_y)
2642 /* Scrolling up. Make sure we don't copy part of the mode
2643 line at the bottom. */
2644 if (from_y + run->height > bottom_y)
2645 height = bottom_y - from_y;
2646 else
2647 height = run->height;
2648 expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
2650 else
2652 /* Scolling down. Make sure we don't copy over the mode line.
2653 at the bottom. */
2654 if (to_y + run->height > bottom_y)
2655 height = bottom_y - to_y;
2656 else
2657 height = run->height;
2658 expect_dirty = CreateRectRgn (x, y, x + width, to_y);
2661 BLOCK_INPUT;
2663 /* Cursor off. Will be switched on again in x_update_window_end. */
2664 updated_window = w;
2665 x_clear_cursor (w);
2668 RECT from;
2669 RECT to;
2670 HRGN dirty = CreateRectRgn (0, 0, 0, 0);
2671 HRGN combined = CreateRectRgn (0, 0, 0, 0);
2673 from.left = to.left = x;
2674 from.right = to.right = x + width;
2675 from.top = from_y;
2676 from.bottom = from_y + height;
2677 to.top = y;
2678 to.bottom = bottom_y;
2680 ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
2681 NULL, SW_INVALIDATE);
2683 /* Combine this with what we expect to be dirty. This covers the
2684 case where not all of the region we expect is actually dirty. */
2685 CombineRgn (combined, dirty, expect_dirty, RGN_OR);
2687 /* If the dirty region is not what we expected, redraw the entire frame. */
2688 if (!EqualRgn (combined, expect_dirty))
2689 SET_FRAME_GARBAGED (f);
2692 UNBLOCK_INPUT;
2697 /***********************************************************************
2698 Exposure Events
2699 ***********************************************************************/
2701 static void
2702 frame_highlight (f)
2703 struct frame *f;
2705 x_update_cursor (f, 1);
2708 static void
2709 frame_unhighlight (f)
2710 struct frame *f;
2712 x_update_cursor (f, 1);
2715 /* The focus has changed. Update the frames as necessary to reflect
2716 the new situation. Note that we can't change the selected frame
2717 here, because the Lisp code we are interrupting might become confused.
2718 Each event gets marked with the frame in which it occurred, so the
2719 Lisp code can tell when the switch took place by examining the events. */
2721 static void
2722 x_new_focus_frame (dpyinfo, frame)
2723 struct w32_display_info *dpyinfo;
2724 struct frame *frame;
2726 struct frame *old_focus = dpyinfo->w32_focus_frame;
2728 if (frame != dpyinfo->w32_focus_frame)
2730 /* Set this before calling other routines, so that they see
2731 the correct value of w32_focus_frame. */
2732 dpyinfo->w32_focus_frame = frame;
2734 if (old_focus && old_focus->auto_lower)
2735 x_lower_frame (old_focus);
2745 if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
2746 pending_autoraise_frame = dpyinfo->w32_focus_frame;
2747 else
2748 pending_autoraise_frame = 0;
2751 x_frame_rehighlight (dpyinfo);
2754 /* Handle an event saying the mouse has moved out of an Emacs frame. */
2756 void
2757 x_mouse_leave (dpyinfo)
2758 struct w32_display_info *dpyinfo;
2760 x_new_focus_frame (dpyinfo, dpyinfo->w32_focus_event_frame);
2763 /* The focus has changed, or we have redirected a frame's focus to
2764 another frame (this happens when a frame uses a surrogate
2765 mini-buffer frame). Shift the highlight as appropriate.
2767 The FRAME argument doesn't necessarily have anything to do with which
2768 frame is being highlighted or un-highlighted; we only use it to find
2769 the appropriate X display info. */
2771 static void
2772 w32_frame_rehighlight (frame)
2773 struct frame *frame;
2775 if (! FRAME_W32_P (frame))
2776 return;
2777 x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
2780 static void
2781 x_frame_rehighlight (dpyinfo)
2782 struct w32_display_info *dpyinfo;
2784 struct frame *old_highlight = dpyinfo->x_highlight_frame;
2786 if (dpyinfo->w32_focus_frame)
2788 dpyinfo->x_highlight_frame
2789 = ((GC_FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
2790 ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
2791 : dpyinfo->w32_focus_frame);
2792 if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
2794 FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame) = Qnil;
2795 dpyinfo->x_highlight_frame = dpyinfo->w32_focus_frame;
2798 else
2799 dpyinfo->x_highlight_frame = 0;
2801 if (dpyinfo->x_highlight_frame != old_highlight)
2803 if (old_highlight)
2804 frame_unhighlight (old_highlight);
2805 if (dpyinfo->x_highlight_frame)
2806 frame_highlight (dpyinfo->x_highlight_frame);
2810 /* Keyboard processing - modifier keys, etc. */
2812 /* Convert a keysym to its name. */
2814 char *
2815 x_get_keysym_name (keysym)
2816 int keysym;
2818 /* Make static so we can always return it */
2819 static char value[100];
2821 BLOCK_INPUT;
2822 GetKeyNameText (keysym, value, 100);
2823 UNBLOCK_INPUT;
2825 return value;
2830 /* Mouse clicks and mouse movement. Rah. */
2832 /* Parse a button MESSAGE. The button index is returned in PBUTTON, and
2833 the state in PUP. XBUTTON provides extra information for extended mouse
2834 button messages. Returns FALSE if unable to parse the message. */
2835 BOOL
2836 parse_button (message, xbutton, pbutton, pup)
2837 int message;
2838 int xbutton;
2839 int * pbutton;
2840 int * pup;
2842 int button = 0;
2843 int up = 0;
2845 switch (message)
2847 case WM_LBUTTONDOWN:
2848 button = 0;
2849 up = 0;
2850 break;
2851 case WM_LBUTTONUP:
2852 button = 0;
2853 up = 1;
2854 break;
2855 case WM_MBUTTONDOWN:
2856 if (NILP (Vw32_swap_mouse_buttons))
2857 button = 1;
2858 else
2859 button = 2;
2860 up = 0;
2861 break;
2862 case WM_MBUTTONUP:
2863 if (NILP (Vw32_swap_mouse_buttons))
2864 button = 1;
2865 else
2866 button = 2;
2867 up = 1;
2868 break;
2869 case WM_RBUTTONDOWN:
2870 if (NILP (Vw32_swap_mouse_buttons))
2871 button = 2;
2872 else
2873 button = 1;
2874 up = 0;
2875 break;
2876 case WM_RBUTTONUP:
2877 if (NILP (Vw32_swap_mouse_buttons))
2878 button = 2;
2879 else
2880 button = 1;
2881 up = 1;
2882 break;
2883 case WM_XBUTTONDOWN:
2884 button = xbutton + 2;
2885 up = 0;
2886 break;
2887 case WM_XBUTTONUP:
2888 button = xbutton + 2;
2889 up = 1;
2890 break;
2891 default:
2892 return (FALSE);
2895 if (pup) *pup = up;
2896 if (pbutton) *pbutton = button;
2898 return (TRUE);
2902 /* Prepare a mouse-event in *RESULT for placement in the input queue.
2904 If the event is a button press, then note that we have grabbed
2905 the mouse. */
2907 static Lisp_Object
2908 construct_mouse_click (result, msg, f)
2909 struct input_event *result;
2910 W32Msg *msg;
2911 struct frame *f;
2913 int button;
2914 int up;
2916 parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
2917 &button, &up);
2919 /* Make the event type NO_EVENT; we'll change that when we decide
2920 otherwise. */
2921 result->kind = MOUSE_CLICK_EVENT;
2922 result->code = button;
2923 result->timestamp = msg->msg.time;
2924 result->modifiers = (msg->dwModifiers
2925 | (up
2926 ? up_modifier
2927 : down_modifier));
2929 XSETINT (result->x, LOWORD (msg->msg.lParam));
2930 XSETINT (result->y, HIWORD (msg->msg.lParam));
2931 XSETFRAME (result->frame_or_window, f);
2932 result->arg = Qnil;
2933 return Qnil;
2936 static Lisp_Object
2937 construct_mouse_wheel (result, msg, f)
2938 struct input_event *result;
2939 W32Msg *msg;
2940 struct frame *f;
2942 POINT p;
2943 int delta;
2945 result->kind = WHEEL_EVENT;
2946 result->code = 0;
2947 result->timestamp = msg->msg.time;
2949 /* A WHEEL_DELTA positive value indicates that the wheel was rotated
2950 forward, away from the user (up); a negative value indicates that
2951 the wheel was rotated backward, toward the user (down). */
2952 delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
2954 /* The up and down modifiers indicate if the wheel was rotated up or
2955 down based on WHEEL_DELTA value. */
2956 result->modifiers = (msg->dwModifiers
2957 | ((delta < 0 ) ? down_modifier : up_modifier));
2959 p.x = LOWORD (msg->msg.lParam);
2960 p.y = HIWORD (msg->msg.lParam);
2961 ScreenToClient (msg->msg.hwnd, &p);
2962 XSETINT (result->x, p.x);
2963 XSETINT (result->y, p.y);
2964 XSETFRAME (result->frame_or_window, f);
2965 result->arg = Qnil;
2966 return Qnil;
2969 static Lisp_Object
2970 construct_drag_n_drop (result, msg, f)
2971 struct input_event *result;
2972 W32Msg *msg;
2973 struct frame *f;
2975 Lisp_Object files;
2976 Lisp_Object frame;
2977 HDROP hdrop;
2978 POINT p;
2979 WORD num_files;
2980 char *name;
2981 int i, len;
2983 result->kind = DRAG_N_DROP_EVENT;
2984 result->code = 0;
2985 result->timestamp = msg->msg.time;
2986 result->modifiers = msg->dwModifiers;
2988 hdrop = (HDROP) msg->msg.wParam;
2989 DragQueryPoint (hdrop, &p);
2991 #if 0
2992 p.x = LOWORD (msg->msg.lParam);
2993 p.y = HIWORD (msg->msg.lParam);
2994 ScreenToClient (msg->msg.hwnd, &p);
2995 #endif
2997 XSETINT (result->x, p.x);
2998 XSETINT (result->y, p.y);
3000 num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
3001 files = Qnil;
3003 for (i = 0; i < num_files; i++)
3005 len = DragQueryFile (hdrop, i, NULL, 0);
3006 if (len <= 0)
3007 continue;
3008 name = alloca (len + 1);
3009 DragQueryFile (hdrop, i, name, len + 1);
3010 files = Fcons (DECODE_FILE (build_string (name)), files);
3013 DragFinish (hdrop);
3015 XSETFRAME (frame, f);
3016 result->frame_or_window = Fcons (frame, files);
3017 result->arg = Qnil;
3018 return Qnil;
3022 /* Function to report a mouse movement to the mainstream Emacs code.
3023 The input handler calls this.
3025 We have received a mouse movement event, which is given in *event.
3026 If the mouse is over a different glyph than it was last time, tell
3027 the mainstream emacs code by setting mouse_moved. If not, ask for
3028 another motion event, so we can check again the next time it moves. */
3030 static MSG last_mouse_motion_event;
3031 static Lisp_Object last_mouse_motion_frame;
3033 static void remember_mouse_glyph P_ ((struct frame *, int, int));
3035 static void
3036 note_mouse_movement (frame, msg)
3037 FRAME_PTR frame;
3038 MSG *msg;
3040 int mouse_x = LOWORD (msg->lParam);
3041 int mouse_y = HIWORD (msg->lParam);
3043 last_mouse_movement_time = msg->time;
3044 memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
3045 XSETFRAME (last_mouse_motion_frame, frame);
3047 if (msg->hwnd != FRAME_W32_WINDOW (frame))
3049 frame->mouse_moved = 1;
3050 last_mouse_scroll_bar = Qnil;
3051 note_mouse_highlight (frame, -1, -1);
3054 /* Has the mouse moved off the glyph it was on at the last sighting? */
3055 else if (mouse_x < last_mouse_glyph.left
3056 || mouse_x > last_mouse_glyph.right
3057 || mouse_y < last_mouse_glyph.top
3058 || mouse_y > last_mouse_glyph.bottom)
3060 frame->mouse_moved = 1;
3061 last_mouse_scroll_bar = Qnil;
3062 note_mouse_highlight (frame, mouse_x, mouse_y);
3063 /* Remember the mouse position here, as w32_mouse_position only
3064 gets called when mouse tracking is enabled but we also need
3065 to keep track of the mouse for help_echo and highlighting at
3066 other times. */
3067 remember_mouse_glyph (frame, mouse_x, mouse_y);
3072 /************************************************************************
3073 Mouse Face
3074 ************************************************************************/
3076 static struct scroll_bar *x_window_to_scroll_bar ();
3077 static void x_scroll_bar_report_motion ();
3078 static void x_check_fullscreen P_ ((struct frame *));
3079 static int glyph_rect P_ ((struct frame *f, int, int, RECT *));
3082 static void
3083 redo_mouse_highlight ()
3085 if (!NILP (last_mouse_motion_frame)
3086 && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame)))
3087 note_mouse_highlight (XFRAME (last_mouse_motion_frame),
3088 LOWORD (last_mouse_motion_event.lParam),
3089 HIWORD (last_mouse_motion_event.lParam));
3092 void
3093 w32_define_cursor (window, cursor)
3094 Window window;
3095 Cursor cursor;
3097 PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
3100 /* Try to determine frame pixel position and size of the glyph under
3101 frame pixel coordinates X/Y on frame F . Return the position and
3102 size in *RECT. Value is non-zero if we could compute these
3103 values. */
3105 static int
3106 glyph_rect (f, x, y, rect)
3107 struct frame *f;
3108 int x, y;
3109 RECT *rect;
3111 Lisp_Object window;
3113 window = window_from_coordinates (f, x, y, 0, &x, &y, 0);
3115 if (!NILP (window))
3117 struct window *w = XWINDOW (window);
3118 struct glyph_row *r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
3119 struct glyph_row *end = r + w->current_matrix->nrows - 1;
3121 for (; r < end && r->enabled_p; ++r)
3122 if (r->y <= y && r->y + r->height > y)
3124 /* Found the row at y. */
3125 struct glyph *g = r->glyphs[TEXT_AREA];
3126 struct glyph *end = g + r->used[TEXT_AREA];
3127 int gx;
3129 rect->top = WINDOW_TO_FRAME_PIXEL_Y (w, r->y);
3130 rect->bottom = rect->top + r->height;
3132 if (x < r->x)
3134 /* x is to the left of the first glyph in the row. */
3135 /* Shouldn't this be a pixel value?
3136 WINDOW_LEFT_EDGE_X (w) seems to be the right value.
3137 ++KFS */
3138 rect->left = WINDOW_LEFT_EDGE_COL (w);
3139 rect->right = WINDOW_TO_FRAME_PIXEL_X (w, r->x);
3140 return 1;
3143 for (gx = r->x; g < end; gx += g->pixel_width, ++g)
3144 if (gx <= x && gx + g->pixel_width > x)
3146 /* x is on a glyph. */
3147 rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
3148 rect->right = rect->left + g->pixel_width;
3149 return 1;
3152 /* x is to the right of the last glyph in the row. */
3153 rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
3154 /* Shouldn't this be a pixel value?
3155 WINDOW_RIGHT_EDGE_X (w) seems to be the right value.
3156 ++KFS */
3157 rect->right = WINDOW_RIGHT_EDGE_COL (w);
3158 return 1;
3162 /* The y is not on any row. */
3163 return 0;
3166 /* Record the position of the mouse in last_mouse_glyph. */
3167 static void
3168 remember_mouse_glyph (f1, gx, gy)
3169 struct frame * f1;
3170 int gx, gy;
3172 if (!glyph_rect (f1, gx, gy, &last_mouse_glyph))
3174 int width = FRAME_SMALLEST_CHAR_WIDTH (f1);
3175 int height = FRAME_SMALLEST_FONT_HEIGHT (f1);
3177 /* Arrange for the division in FRAME_PIXEL_X_TO_COL etc. to
3178 round down even for negative values. */
3179 if (gx < 0)
3180 gx -= width - 1;
3181 if (gy < 0)
3182 gy -= height - 1;
3183 #if 0
3184 /* This was the original code from XTmouse_position, but it seems
3185 to give the position of the glyph diagonally next to the one
3186 the mouse is over. */
3187 gx = (gx + width - 1) / width * width;
3188 gy = (gy + height - 1) / height * height;
3189 #else
3190 gx = gx / width * width;
3191 gy = gy / height * height;
3192 #endif
3194 last_mouse_glyph.left = gx;
3195 last_mouse_glyph.top = gy;
3196 last_mouse_glyph.right = gx + width;
3197 last_mouse_glyph.bottom = gy + height;
3201 /* Return the current position of the mouse.
3202 *fp should be a frame which indicates which display to ask about.
3204 If the mouse movement started in a scroll bar, set *fp, *bar_window,
3205 and *part to the frame, window, and scroll bar part that the mouse
3206 is over. Set *x and *y to the portion and whole of the mouse's
3207 position on the scroll bar.
3209 If the mouse movement started elsewhere, set *fp to the frame the
3210 mouse is on, *bar_window to nil, and *x and *y to the character cell
3211 the mouse is over.
3213 Set *time to the server time-stamp for the time at which the mouse
3214 was at this position.
3216 Don't store anything if we don't have a valid set of values to report.
3218 This clears the mouse_moved flag, so we can wait for the next mouse
3219 movement. */
3221 static void
3222 w32_mouse_position (fp, insist, bar_window, part, x, y, time)
3223 FRAME_PTR *fp;
3224 int insist;
3225 Lisp_Object *bar_window;
3226 enum scroll_bar_part *part;
3227 Lisp_Object *x, *y;
3228 unsigned long *time;
3230 FRAME_PTR f1;
3232 BLOCK_INPUT;
3234 if (! NILP (last_mouse_scroll_bar) && insist == 0)
3235 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time);
3236 else
3238 POINT pt;
3240 Lisp_Object frame, tail;
3242 /* Clear the mouse-moved flag for every frame on this display. */
3243 FOR_EACH_FRAME (tail, frame)
3244 XFRAME (frame)->mouse_moved = 0;
3246 last_mouse_scroll_bar = Qnil;
3248 GetCursorPos (&pt);
3250 /* Now we have a position on the root; find the innermost window
3251 containing the pointer. */
3253 if (FRAME_W32_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame
3254 && FRAME_LIVE_P (last_mouse_frame))
3256 /* If mouse was grabbed on a frame, give coords for that frame
3257 even if the mouse is now outside it. */
3258 f1 = last_mouse_frame;
3260 else
3262 /* Is window under mouse one of our frames? */
3263 f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
3264 WindowFromPoint (pt));
3267 /* If not, is it one of our scroll bars? */
3268 if (! f1)
3270 struct scroll_bar *bar
3271 = x_window_to_scroll_bar (WindowFromPoint (pt));
3273 if (bar)
3275 f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3279 if (f1 == 0 && insist > 0)
3280 f1 = SELECTED_FRAME ();
3282 if (f1)
3284 /* Ok, we found a frame. Store all the values.
3285 last_mouse_glyph is a rectangle used to reduce the
3286 generation of mouse events. To not miss any motion
3287 events, we must divide the frame into rectangles of the
3288 size of the smallest character that could be displayed
3289 on it, i.e. into the same rectangles that matrices on
3290 the frame are divided into. */
3292 #if OLD_REDISPLAY_CODE
3293 int ignore1, ignore2;
3295 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3297 pixel_to_glyph_coords (f1, pt.x, pt.y, &ignore1, &ignore2,
3298 &last_mouse_glyph,
3299 FRAME_W32_DISPLAY_INFO (f1)->grabbed
3300 || insist);
3301 #else
3302 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3303 remember_mouse_glyph (f1, pt.x, pt.y);
3304 #endif
3306 *bar_window = Qnil;
3307 *part = 0;
3308 *fp = f1;
3309 XSETINT (*x, pt.x);
3310 XSETINT (*y, pt.y);
3311 *time = last_mouse_movement_time;
3316 UNBLOCK_INPUT;
3320 /***********************************************************************
3321 Tool-bars
3322 ***********************************************************************/
3324 /* Handle mouse button event on the tool-bar of frame F, at
3325 frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress
3326 or ButtonRelase. */
3328 static void
3329 w32_handle_tool_bar_click (f, button_event)
3330 struct frame *f;
3331 struct input_event *button_event;
3333 int x = XFASTINT (button_event->x);
3334 int y = XFASTINT (button_event->y);
3336 if (button_event->modifiers & down_modifier)
3337 handle_tool_bar_click (f, x, y, 1, 0);
3338 else
3339 handle_tool_bar_click (f, x, y, 0,
3340 button_event->modifiers & ~up_modifier);
3345 /***********************************************************************
3346 Scroll bars
3347 ***********************************************************************/
3349 /* Scroll bar support. */
3351 /* Given a window ID, find the struct scroll_bar which manages it.
3352 This can be called in GC, so we have to make sure to strip off mark
3353 bits. */
3355 static struct scroll_bar *
3356 x_window_to_scroll_bar (window_id)
3357 Window window_id;
3359 Lisp_Object tail;
3361 for (tail = Vframe_list;
3362 XGCTYPE (tail) == Lisp_Cons;
3363 tail = XCDR (tail))
3365 Lisp_Object frame, bar, condemned;
3367 frame = XCAR (tail);
3368 /* All elements of Vframe_list should be frames. */
3369 if (! GC_FRAMEP (frame))
3370 abort ();
3372 /* Scan this frame's scroll bar list for a scroll bar with the
3373 right window ID. */
3374 condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
3375 for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
3376 /* This trick allows us to search both the ordinary and
3377 condemned scroll bar lists with one loop. */
3378 ! GC_NILP (bar) || (bar = condemned,
3379 condemned = Qnil,
3380 ! GC_NILP (bar));
3381 bar = XSCROLL_BAR (bar)->next)
3382 if (SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
3383 return XSCROLL_BAR (bar);
3386 return 0;
3391 /* Set the thumb size and position of scroll bar BAR. We are currently
3392 displaying PORTION out of a whole WHOLE, and our position POSITION. */
3394 static void
3395 w32_set_scroll_bar_thumb (bar, portion, position, whole)
3396 struct scroll_bar *bar;
3397 int portion, position, whole;
3399 Window w = SCROLL_BAR_W32_WINDOW (bar);
3400 double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3401 int sb_page, sb_pos;
3402 BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
3404 if (whole)
3406 /* Position scroll bar at rock bottom if the bottom of the
3407 buffer is visible. This avoids shinking the thumb away
3408 to nothing if it is held at the bottom of the buffer. */
3409 if (position + portion >= whole)
3411 sb_page = range * (whole - position) / whole
3412 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3413 sb_pos = range;
3416 sb_page = portion * range / whole + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3417 sb_pos = position * range / whole;
3419 else
3421 sb_page = range;
3422 sb_pos = 0;
3425 BLOCK_INPUT;
3427 if (pfnSetScrollInfo)
3429 SCROLLINFO si;
3431 si.cbSize = sizeof (si);
3432 /* Only update page size if currently dragging, to reduce
3433 flicker effects. */
3434 if (draggingp)
3435 si.fMask = SIF_PAGE;
3436 else
3437 si.fMask = SIF_PAGE | SIF_POS;
3438 si.nPage = sb_page;
3439 si.nPos = sb_pos;
3441 pfnSetScrollInfo (w, SB_CTL, &si, !draggingp);
3443 else
3444 SetScrollPos (w, SB_CTL, sb_pos, !draggingp);
3446 UNBLOCK_INPUT;
3450 /************************************************************************
3451 Scroll bars, general
3452 ************************************************************************/
3454 HWND
3455 my_create_scrollbar (f, bar)
3456 struct frame * f;
3457 struct scroll_bar * bar;
3459 return (HWND) SendMessage (FRAME_W32_WINDOW (f),
3460 WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
3461 (LPARAM) bar);
3464 /*#define ATTACH_THREADS*/
3466 BOOL
3467 my_show_window (FRAME_PTR f, HWND hwnd, int how)
3469 #ifndef ATTACH_THREADS
3470 return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
3471 (WPARAM) hwnd, (LPARAM) how);
3472 #else
3473 return ShowWindow (hwnd, how);
3474 #endif
3477 void
3478 my_set_window_pos (HWND hwnd, HWND hwndAfter,
3479 int x, int y, int cx, int cy, UINT flags)
3481 #ifndef ATTACH_THREADS
3482 WINDOWPOS pos;
3483 pos.hwndInsertAfter = hwndAfter;
3484 pos.x = x;
3485 pos.y = y;
3486 pos.cx = cx;
3487 pos.cy = cy;
3488 pos.flags = flags;
3489 SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
3490 #else
3491 SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
3492 #endif
3495 void
3496 my_set_focus (f, hwnd)
3497 struct frame * f;
3498 HWND hwnd;
3500 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
3501 (WPARAM) hwnd, 0);
3504 void
3505 my_set_foreground_window (hwnd)
3506 HWND hwnd;
3508 SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
3511 void
3512 my_destroy_window (f, hwnd)
3513 struct frame * f;
3514 HWND hwnd;
3516 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
3517 (WPARAM) hwnd, 0);
3520 /* Create a scroll bar and return the scroll bar vector for it. W is
3521 the Emacs window on which to create the scroll bar. TOP, LEFT,
3522 WIDTH and HEIGHT are.the pixel coordinates and dimensions of the
3523 scroll bar. */
3525 static struct scroll_bar *
3526 x_scroll_bar_create (w, top, left, width, height)
3527 struct window *w;
3528 int top, left, width, height;
3530 struct frame *f = XFRAME (WINDOW_FRAME (w));
3531 HWND hwnd;
3532 struct scroll_bar *bar
3533 = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
3535 BLOCK_INPUT;
3537 XSETWINDOW (bar->window, w);
3538 XSETINT (bar->top, top);
3539 XSETINT (bar->left, left);
3540 XSETINT (bar->width, width);
3541 XSETINT (bar->height, height);
3542 XSETINT (bar->start, 0);
3543 XSETINT (bar->end, 0);
3544 bar->dragging = Qnil;
3546 /* Requires geometry to be set before call to create the real window */
3548 hwnd = my_create_scrollbar (f, bar);
3550 if (pfnSetScrollInfo)
3552 SCROLLINFO si;
3554 si.cbSize = sizeof (si);
3555 si.fMask = SIF_ALL;
3556 si.nMin = 0;
3557 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3558 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3559 si.nPage = si.nMax;
3560 si.nPos = 0;
3562 pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3564 else
3566 SetScrollRange (hwnd, SB_CTL, 0,
3567 VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
3568 SetScrollPos (hwnd, SB_CTL, 0, FALSE);
3571 SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
3573 /* Add bar to its frame's list of scroll bars. */
3574 bar->next = FRAME_SCROLL_BARS (f);
3575 bar->prev = Qnil;
3576 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3577 if (! NILP (bar->next))
3578 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3580 UNBLOCK_INPUT;
3582 return bar;
3586 /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
3587 nil. */
3589 static void
3590 x_scroll_bar_remove (bar)
3591 struct scroll_bar *bar;
3593 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3595 BLOCK_INPUT;
3597 /* Destroy the window. */
3598 my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
3600 /* Disassociate this scroll bar from its window. */
3601 XWINDOW (bar->window)->vertical_scroll_bar = Qnil;
3603 UNBLOCK_INPUT;
3606 /* Set the handle of the vertical scroll bar for WINDOW to indicate
3607 that we are displaying PORTION characters out of a total of WHOLE
3608 characters, starting at POSITION. If WINDOW has no scroll bar,
3609 create one. */
3610 static void
3611 w32_set_vertical_scroll_bar (w, portion, whole, position)
3612 struct window *w;
3613 int portion, whole, position;
3615 struct frame *f = XFRAME (w->frame);
3616 struct scroll_bar *bar;
3617 int top, height, left, sb_left, width, sb_width;
3618 int window_y, window_height;
3620 /* Get window dimensions. */
3621 window_box (w, -1, 0, &window_y, 0, &window_height);
3622 top = window_y;
3623 width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f);
3624 height = window_height;
3626 /* Compute the left edge of the scroll bar area. */
3627 left = WINDOW_SCROLL_BAR_AREA_X (w);
3629 /* Compute the width of the scroll bar which might be less than
3630 the width of the area reserved for the scroll bar. */
3631 if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0)
3632 sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
3633 else
3634 sb_width = width;
3636 /* Compute the left edge of the scroll bar. */
3637 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
3638 sb_left = left + width - sb_width - (width - sb_width) / 2;
3639 else
3640 sb_left = left + (width - sb_width) / 2;
3642 /* Does the scroll bar exist yet? */
3643 if (NILP (w->vertical_scroll_bar))
3645 HDC hdc;
3646 BLOCK_INPUT;
3647 if (width > 0 && height > 0)
3649 hdc = get_frame_dc (f);
3650 w32_clear_area (f, hdc, left, top, width, height);
3651 release_frame_dc (f, hdc);
3653 UNBLOCK_INPUT;
3655 bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
3657 else
3659 /* It may just need to be moved and resized. */
3660 HWND hwnd;
3662 bar = XSCROLL_BAR (w->vertical_scroll_bar);
3663 hwnd = SCROLL_BAR_W32_WINDOW (bar);
3665 /* If already correctly positioned, do nothing. */
3666 if ( XINT (bar->left) == sb_left
3667 && XINT (bar->top) == top
3668 && XINT (bar->width) == sb_width
3669 && XINT (bar->height) == height )
3671 /* Redraw after clear_frame. */
3672 if (!my_show_window (f, hwnd, SW_NORMAL))
3673 InvalidateRect (hwnd, NULL, FALSE);
3675 else
3677 HDC hdc;
3678 BLOCK_INPUT;
3679 if (width && height)
3681 hdc = get_frame_dc (f);
3682 /* Since Windows scroll bars are smaller than the space reserved
3683 for them on the frame, we have to clear "under" them. */
3684 w32_clear_area (f, hdc,
3685 left,
3686 top,
3687 width,
3688 height);
3689 release_frame_dc (f, hdc);
3691 /* Make sure scroll bar is "visible" before moving, to ensure the
3692 area of the parent window now exposed will be refreshed. */
3693 my_show_window (f, hwnd, SW_HIDE);
3694 MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
3695 top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
3696 max (height, 1), TRUE);
3697 if (pfnSetScrollInfo)
3699 SCROLLINFO si;
3701 si.cbSize = sizeof (si);
3702 si.fMask = SIF_RANGE;
3703 si.nMin = 0;
3704 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3705 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3707 pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3709 else
3710 SetScrollRange (hwnd, SB_CTL, 0,
3711 VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
3712 my_show_window (f, hwnd, SW_NORMAL);
3713 /* InvalidateRect (w, NULL, FALSE); */
3715 /* Remember new settings. */
3716 XSETINT (bar->left, sb_left);
3717 XSETINT (bar->top, top);
3718 XSETINT (bar->width, sb_width);
3719 XSETINT (bar->height, height);
3721 UNBLOCK_INPUT;
3724 w32_set_scroll_bar_thumb (bar, portion, position, whole);
3726 XSETVECTOR (w->vertical_scroll_bar, bar);
3730 /* The following three hooks are used when we're doing a thorough
3731 redisplay of the frame. We don't explicitly know which scroll bars
3732 are going to be deleted, because keeping track of when windows go
3733 away is a real pain - "Can you say set-window-configuration, boys
3734 and girls?" Instead, we just assert at the beginning of redisplay
3735 that *all* scroll bars are to be removed, and then save a scroll bar
3736 from the fiery pit when we actually redisplay its window. */
3738 /* Arrange for all scroll bars on FRAME to be removed at the next call
3739 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
3740 `*redeem_scroll_bar_hook' is applied to its window before the judgment. */
3742 static void
3743 w32_condemn_scroll_bars (frame)
3744 FRAME_PTR frame;
3746 /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
3747 while (! NILP (FRAME_SCROLL_BARS (frame)))
3749 Lisp_Object bar;
3750 bar = FRAME_SCROLL_BARS (frame);
3751 FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next;
3752 XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
3753 XSCROLL_BAR (bar)->prev = Qnil;
3754 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
3755 XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
3756 FRAME_CONDEMNED_SCROLL_BARS (frame) = bar;
3761 /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
3762 Note that WINDOW isn't necessarily condemned at all. */
3764 static void
3765 w32_redeem_scroll_bar (window)
3766 struct window *window;
3768 struct scroll_bar *bar;
3769 struct frame *f;
3771 /* We can't redeem this window's scroll bar if it doesn't have one. */
3772 if (NILP (window->vertical_scroll_bar))
3773 abort ();
3775 bar = XSCROLL_BAR (window->vertical_scroll_bar);
3777 /* Unlink it from the condemned list. */
3778 f = XFRAME (WINDOW_FRAME (window));
3779 if (NILP (bar->prev))
3781 /* If the prev pointer is nil, it must be the first in one of
3782 the lists. */
3783 if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
3784 /* It's not condemned. Everything's fine. */
3785 return;
3786 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
3787 window->vertical_scroll_bar))
3788 FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next;
3789 else
3790 /* If its prev pointer is nil, it must be at the front of
3791 one or the other! */
3792 abort ();
3794 else
3795 XSCROLL_BAR (bar->prev)->next = bar->next;
3797 if (! NILP (bar->next))
3798 XSCROLL_BAR (bar->next)->prev = bar->prev;
3800 bar->next = FRAME_SCROLL_BARS (f);
3801 bar->prev = Qnil;
3802 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3803 if (! NILP (bar->next))
3804 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3807 /* Remove all scroll bars on FRAME that haven't been saved since the
3808 last call to `*condemn_scroll_bars_hook'. */
3810 static void
3811 w32_judge_scroll_bars (f)
3812 FRAME_PTR f;
3814 Lisp_Object bar, next;
3816 bar = FRAME_CONDEMNED_SCROLL_BARS (f);
3818 /* Clear out the condemned list now so we won't try to process any
3819 more events on the hapless scroll bars. */
3820 FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil;
3822 for (; ! NILP (bar); bar = next)
3824 struct scroll_bar *b = XSCROLL_BAR (bar);
3826 x_scroll_bar_remove (b);
3828 next = b->next;
3829 b->next = b->prev = Qnil;
3832 /* Now there should be no references to the condemned scroll bars,
3833 and they should get garbage-collected. */
3836 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
3837 is set to something other than NO_EVENT, it is enqueued.
3839 This may be called from a signal handler, so we have to ignore GC
3840 mark bits. */
3842 static int
3843 w32_scroll_bar_handle_click (bar, msg, emacs_event)
3844 struct scroll_bar *bar;
3845 W32Msg *msg;
3846 struct input_event *emacs_event;
3848 if (! GC_WINDOWP (bar->window))
3849 abort ();
3851 emacs_event->kind = W32_SCROLL_BAR_CLICK_EVENT;
3852 emacs_event->code = 0;
3853 /* not really meaningful to distinguish up/down */
3854 emacs_event->modifiers = msg->dwModifiers;
3855 emacs_event->frame_or_window = bar->window;
3856 emacs_event->arg = Qnil;
3857 emacs_event->timestamp = msg->msg.time;
3860 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3861 int y;
3862 int dragging = !NILP (bar->dragging);
3864 if (pfnGetScrollInfo)
3866 SCROLLINFO si;
3868 si.cbSize = sizeof (si);
3869 si.fMask = SIF_POS;
3871 pfnGetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
3872 y = si.nPos;
3874 else
3875 y = GetScrollPos ((HWND) msg->msg.lParam, SB_CTL);
3877 bar->dragging = Qnil;
3880 last_mouse_scroll_bar_pos = msg->msg.wParam;
3882 switch (LOWORD (msg->msg.wParam))
3884 case SB_LINEDOWN:
3885 emacs_event->part = scroll_bar_down_arrow;
3886 break;
3887 case SB_LINEUP:
3888 emacs_event->part = scroll_bar_up_arrow;
3889 break;
3890 case SB_PAGEUP:
3891 emacs_event->part = scroll_bar_above_handle;
3892 break;
3893 case SB_PAGEDOWN:
3894 emacs_event->part = scroll_bar_below_handle;
3895 break;
3896 case SB_TOP:
3897 emacs_event->part = scroll_bar_handle;
3898 y = 0;
3899 break;
3900 case SB_BOTTOM:
3901 emacs_event->part = scroll_bar_handle;
3902 y = top_range;
3903 break;
3904 case SB_THUMBTRACK:
3905 case SB_THUMBPOSITION:
3906 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3907 y = HIWORD (msg->msg.wParam);
3908 bar->dragging = Qt;
3909 emacs_event->part = scroll_bar_handle;
3911 /* "Silently" update current position. */
3912 if (pfnSetScrollInfo)
3914 SCROLLINFO si;
3916 si.cbSize = sizeof (si);
3917 si.fMask = SIF_POS;
3918 si.nPos = y;
3919 /* Remember apparent position (we actually lag behind the real
3920 position, so don't set that directly. */
3921 last_scroll_bar_drag_pos = y;
3923 pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
3925 else
3926 SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, FALSE);
3927 break;
3928 case SB_ENDSCROLL:
3929 /* If this is the end of a drag sequence, then reset the scroll
3930 handle size to normal and do a final redraw. Otherwise do
3931 nothing. */
3932 if (dragging)
3934 if (pfnSetScrollInfo)
3936 SCROLLINFO si;
3937 int start = XINT (bar->start);
3938 int end = XINT (bar->end);
3940 si.cbSize = sizeof (si);
3941 si.fMask = SIF_PAGE | SIF_POS;
3942 si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3943 si.nPos = last_scroll_bar_drag_pos;
3944 pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
3946 else
3947 SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, TRUE);
3949 /* fall through */
3950 default:
3951 emacs_event->kind = NO_EVENT;
3952 return FALSE;
3955 XSETINT (emacs_event->x, y);
3956 XSETINT (emacs_event->y, top_range);
3958 return TRUE;
3962 /* Return information to the user about the current position of the mouse
3963 on the scroll bar. */
3965 static void
3966 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time)
3967 FRAME_PTR *fp;
3968 Lisp_Object *bar_window;
3969 enum scroll_bar_part *part;
3970 Lisp_Object *x, *y;
3971 unsigned long *time;
3973 struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
3974 Window w = SCROLL_BAR_W32_WINDOW (bar);
3975 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3976 int pos;
3977 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3979 BLOCK_INPUT;
3981 *fp = f;
3982 *bar_window = bar->window;
3984 if (pfnGetScrollInfo)
3986 SCROLLINFO si;
3988 si.cbSize = sizeof (si);
3989 si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
3991 pfnGetScrollInfo (w, SB_CTL, &si);
3992 pos = si.nPos;
3993 top_range = si.nMax - si.nPage + 1;
3995 else
3996 pos = GetScrollPos (w, SB_CTL);
3998 switch (LOWORD (last_mouse_scroll_bar_pos))
4000 case SB_THUMBPOSITION:
4001 case SB_THUMBTRACK:
4002 *part = scroll_bar_handle;
4003 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
4004 pos = HIWORD (last_mouse_scroll_bar_pos);
4005 break;
4006 case SB_LINEDOWN:
4007 *part = scroll_bar_handle;
4008 pos++;
4009 break;
4010 default:
4011 *part = scroll_bar_handle;
4012 break;
4015 XSETINT (*x, pos);
4016 XSETINT (*y, top_range);
4018 f->mouse_moved = 0;
4019 last_mouse_scroll_bar = Qnil;
4021 *time = last_mouse_movement_time;
4023 UNBLOCK_INPUT;
4027 /* The screen has been cleared so we may have changed foreground or
4028 background colors, and the scroll bars may need to be redrawn.
4029 Clear out the scroll bars, and ask for expose events, so we can
4030 redraw them. */
4032 void
4033 x_scroll_bar_clear (f)
4034 FRAME_PTR f;
4036 Lisp_Object bar;
4038 /* We can have scroll bars even if this is 0,
4039 if we just turned off scroll bar mode.
4040 But in that case we should not clear them. */
4041 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
4042 for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
4043 bar = XSCROLL_BAR (bar)->next)
4045 HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
4046 HDC hdc = GetDC (window);
4047 RECT rect;
4049 /* Hide scroll bar until ready to repaint. x_scroll_bar_move
4050 arranges to refresh the scroll bar if hidden. */
4051 my_show_window (f, window, SW_HIDE);
4053 GetClientRect (window, &rect);
4054 select_palette (f, hdc);
4055 w32_clear_rect (f, hdc, &rect);
4056 deselect_palette (f, hdc);
4058 ReleaseDC (window, hdc);
4063 /* The main W32 event-reading loop - w32_read_socket. */
4065 /* Record the last 100 characters stored
4066 to help debug the loss-of-chars-during-GC problem. */
4068 static int temp_index;
4069 static short temp_buffer[100];
4072 /* Read events coming from the W32 shell.
4073 This routine is called by the SIGIO handler.
4074 We return as soon as there are no more events to be read.
4076 Events representing keys are stored in buffer BUFP,
4077 which can hold up to NUMCHARS characters.
4078 We return the number of characters stored into the buffer,
4079 thus pretending to be `read'.
4081 EXPECTED is nonzero if the caller knows input is available.
4083 Some of these messages are reposted back to the message queue since the
4084 system calls the windows proc directly in a context where we cannot return
4085 the data nor can we guarantee the state we are in. So if we dispatch them
4086 we will get into an infinite loop. To prevent this from ever happening we
4087 will set a variable to indicate we are in the read_socket call and indicate
4088 which message we are processing since the windows proc gets called
4089 recursively with different messages by the system.
4093 w32_read_socket (sd, bufp, numchars, expected)
4094 register int sd;
4095 /* register */ struct input_event *bufp;
4096 /* register */ int numchars;
4097 int expected;
4099 int count = 0;
4100 int check_visibility = 0;
4101 W32Msg msg;
4102 struct frame *f;
4103 struct w32_display_info *dpyinfo = &one_w32_display_info;
4105 if (interrupt_input_blocked)
4107 interrupt_input_pending = 1;
4108 return -1;
4111 interrupt_input_pending = 0;
4112 BLOCK_INPUT;
4114 /* So people can tell when we have read the available input. */
4115 input_signal_count++;
4117 if (numchars <= 0)
4118 abort (); /* Don't think this happens. */
4120 /* TODO: tool-bars, ghostscript integration, mouse
4121 cursors. */
4122 while (get_next_msg (&msg, FALSE))
4124 switch (msg.msg.message)
4126 case WM_PAINT:
4127 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4129 if (f)
4131 if (msg.rect.right == msg.rect.left ||
4132 msg.rect.bottom == msg.rect.top)
4134 /* We may get paint messages even though the client
4135 area is clipped - these are not expose events. */
4136 DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
4137 SDATA (f->name)));
4139 else if (f->async_visible != 1)
4141 /* Definitely not obscured, so mark as visible. */
4142 f->async_visible = 1;
4143 f->async_iconified = 0;
4144 SET_FRAME_GARBAGED (f);
4145 DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
4146 SDATA (f->name)));
4148 /* WM_PAINT serves as MapNotify as well, so report
4149 visibility changes properly. */
4150 if (f->iconified)
4152 bufp->kind = DEICONIFY_EVENT;
4153 XSETFRAME (bufp->frame_or_window, f);
4154 bufp->arg = Qnil;
4155 bufp++;
4156 count++;
4157 numchars--;
4159 else if (! NILP (Vframe_list)
4160 && ! NILP (XCDR (Vframe_list)))
4161 /* Force a redisplay sooner or later to update the
4162 frame titles in case this is the second frame. */
4163 record_asynch_buffer_change ();
4165 else
4167 HDC hdc = get_frame_dc (f);
4169 /* Erase background again for safety. */
4170 w32_clear_rect (f, hdc, &msg.rect);
4171 release_frame_dc (f, hdc);
4172 expose_frame (f,
4173 msg.rect.left,
4174 msg.rect.top,
4175 msg.rect.right - msg.rect.left,
4176 msg.rect.bottom - msg.rect.top);
4179 break;
4181 case WM_INPUTLANGCHANGE:
4182 /* Generate a language change event. */
4183 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4185 if (f)
4187 if (numchars == 0)
4188 abort ();
4190 bufp->kind = LANGUAGE_CHANGE_EVENT;
4191 XSETFRAME (bufp->frame_or_window, f);
4192 bufp->arg = Qnil;
4193 bufp->code = msg.msg.wParam;
4194 bufp->modifiers = msg.msg.lParam & 0xffff;
4195 bufp++;
4196 count++;
4197 numchars--;
4199 break;
4201 case WM_KEYDOWN:
4202 case WM_SYSKEYDOWN:
4203 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4205 if (f && !f->iconified)
4207 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
4209 dpyinfo->mouse_face_hidden = 1;
4210 clear_mouse_face (dpyinfo);
4213 if (temp_index == sizeof temp_buffer / sizeof (short))
4214 temp_index = 0;
4215 temp_buffer[temp_index++] = msg.msg.wParam;
4216 bufp->kind = NON_ASCII_KEYSTROKE_EVENT;
4217 bufp->code = msg.msg.wParam;
4218 bufp->modifiers = msg.dwModifiers;
4219 XSETFRAME (bufp->frame_or_window, f);
4220 bufp->arg = Qnil;
4221 bufp->timestamp = msg.msg.time;
4222 bufp++;
4223 numchars--;
4224 count++;
4226 break;
4228 case WM_SYSCHAR:
4229 case WM_CHAR:
4230 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4232 if (f && !f->iconified)
4234 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
4236 dpyinfo->mouse_face_hidden = 1;
4237 clear_mouse_face (dpyinfo);
4240 if (temp_index == sizeof temp_buffer / sizeof (short))
4241 temp_index = 0;
4242 temp_buffer[temp_index++] = msg.msg.wParam;
4243 bufp->kind = ASCII_KEYSTROKE_EVENT;
4244 bufp->code = msg.msg.wParam;
4245 bufp->modifiers = msg.dwModifiers;
4246 XSETFRAME (bufp->frame_or_window, f);
4247 bufp->arg = Qnil;
4248 bufp->timestamp = msg.msg.time;
4249 bufp++;
4250 numchars--;
4251 count++;
4253 break;
4255 case WM_MOUSEMOVE:
4256 /* Ignore non-movement. */
4258 int x = LOWORD (msg.msg.lParam);
4259 int y = HIWORD (msg.msg.lParam);
4260 if (x == last_mousemove_x && y == last_mousemove_y)
4261 break;
4262 last_mousemove_x = x;
4263 last_mousemove_y = y;
4266 previous_help_echo_string = help_echo_string;
4268 if (dpyinfo->grabbed && last_mouse_frame
4269 && FRAME_LIVE_P (last_mouse_frame))
4270 f = last_mouse_frame;
4271 else
4272 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4274 if (dpyinfo->mouse_face_hidden)
4276 dpyinfo->mouse_face_hidden = 0;
4277 clear_mouse_face (dpyinfo);
4280 if (f)
4282 /* Generate SELECT_WINDOW_EVENTs when needed. */
4283 if (mouse_autoselect_window)
4285 Lisp_Object window;
4286 int x = LOWORD (msg.msg.lParam);
4287 int y = HIWORD (msg.msg.lParam);
4289 window = window_from_coordinates (f, x, y, 0, 0, 0, 0);
4291 /* Window will be selected only when it is not
4292 selected now and last mouse movement event was
4293 not in it. Minibuffer window will be selected
4294 iff it is active. */
4295 if (WINDOWP(window)
4296 && !EQ (window, last_window)
4297 && !EQ (window, selected_window)
4298 && numchars > 0)
4300 bufp->kind = SELECT_WINDOW_EVENT;
4301 bufp->frame_or_window = window;
4302 bufp->arg = Qnil;
4303 ++bufp, ++count, --numchars;
4306 last_window=window;
4308 note_mouse_movement (f, &msg.msg);
4310 else
4312 /* If we move outside the frame, then we're
4313 certainly no longer on any text in the frame. */
4314 clear_mouse_face (dpyinfo);
4317 /* If the contents of the global variable help_echo_string
4318 has changed, generate a HELP_EVENT. */
4319 if (help_echo_string != previous_help_echo_string ||
4320 (!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
4322 Lisp_Object frame;
4323 int n;
4325 if (help_echo_string == Qnil)
4327 help_echo_object = help_echo_window = Qnil;
4328 help_echo_pos = -1;
4331 if (f)
4332 XSETFRAME (frame, f);
4333 else
4334 frame = Qnil;
4336 any_help_event_p = 1;
4337 n = gen_help_event (bufp, numchars, help_echo_string, frame,
4338 help_echo_window, help_echo_object,
4339 help_echo_pos);
4340 bufp += n, count += n, numchars -= n;
4342 break;
4344 case WM_LBUTTONDOWN:
4345 case WM_LBUTTONUP:
4346 case WM_MBUTTONDOWN:
4347 case WM_MBUTTONUP:
4348 case WM_RBUTTONDOWN:
4349 case WM_RBUTTONUP:
4350 case WM_XBUTTONDOWN:
4351 case WM_XBUTTONUP:
4353 /* If we decide we want to generate an event to be seen
4354 by the rest of Emacs, we put it here. */
4355 struct input_event emacs_event;
4356 int tool_bar_p = 0;
4357 int button;
4358 int up;
4360 emacs_event.kind = NO_EVENT;
4362 if (dpyinfo->grabbed && last_mouse_frame
4363 && FRAME_LIVE_P (last_mouse_frame))
4364 f = last_mouse_frame;
4365 else
4366 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4368 if (f)
4370 construct_mouse_click (&emacs_event, &msg, f);
4372 /* Is this in the tool-bar? */
4373 if (WINDOWP (f->tool_bar_window)
4374 && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
4376 Lisp_Object window;
4377 int x = XFASTINT (emacs_event.x);
4378 int y = XFASTINT (emacs_event.y);
4380 window = window_from_coordinates (f, x, y, 0, 0, 0, 1);
4382 if (EQ (window, f->tool_bar_window))
4384 w32_handle_tool_bar_click (f, &emacs_event);
4385 tool_bar_p = 1;
4389 if (!tool_bar_p)
4390 if (!dpyinfo->w32_focus_frame
4391 || f == dpyinfo->w32_focus_frame
4392 && (numchars >= 1))
4394 construct_mouse_click (bufp, &msg, f);
4395 bufp++;
4396 count++;
4397 numchars--;
4401 parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
4402 &button, &up);
4404 if (up)
4406 dpyinfo->grabbed &= ~ (1 << button);
4408 else
4410 dpyinfo->grabbed |= (1 << button);
4411 last_mouse_frame = f;
4412 /* Ignore any mouse motion that happened
4413 before this event; any subsequent mouse-movement
4414 Emacs events should reflect only motion after
4415 the ButtonPress. */
4416 if (f != 0)
4417 f->mouse_moved = 0;
4419 if (!tool_bar_p)
4420 last_tool_bar_item = -1;
4422 break;
4425 case WM_MOUSEWHEEL:
4427 if (dpyinfo->grabbed && last_mouse_frame
4428 && FRAME_LIVE_P (last_mouse_frame))
4429 f = last_mouse_frame;
4430 else
4431 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4433 if (f)
4436 if ((!dpyinfo->w32_focus_frame
4437 || f == dpyinfo->w32_focus_frame)
4438 && (numchars >= 1))
4440 /* Emit an Emacs wheel-up/down event. */
4441 construct_mouse_wheel (bufp, &msg, f);
4442 bufp++;
4443 count++;
4444 numchars--;
4446 /* Ignore any mouse motion that happened before this
4447 event; any subsequent mouse-movement Emacs events
4448 should reflect only motion after the
4449 ButtonPress. */
4450 f->mouse_moved = 0;
4452 last_mouse_frame = f;
4453 last_tool_bar_item = -1;
4455 break;
4457 case WM_DROPFILES:
4458 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4460 if (f)
4462 construct_drag_n_drop (bufp, &msg, f);
4463 bufp++;
4464 count++;
4465 numchars--;
4467 break;
4469 case WM_VSCROLL:
4471 struct scroll_bar *bar =
4472 x_window_to_scroll_bar ((HWND)msg.msg.lParam);
4474 if (bar && numchars >= 1)
4476 if (w32_scroll_bar_handle_click (bar, &msg, bufp))
4478 bufp++;
4479 count++;
4480 numchars--;
4483 break;
4486 case WM_WINDOWPOSCHANGED:
4487 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4488 if (f)
4490 if (f->want_fullscreen & FULLSCREEN_WAIT)
4491 f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH);
4493 check_visibility = 1;
4494 break;
4496 case WM_ACTIVATE:
4497 case WM_ACTIVATEAPP:
4498 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4499 if (f)
4500 x_check_fullscreen (f);
4501 check_visibility = 1;
4502 break;
4504 case WM_MOVE:
4505 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4507 if (f && !f->async_iconified)
4509 int x, y;
4511 x_real_positions (f, &x, &y);
4512 f->left_pos = x;
4513 f->top_pos = y;
4516 check_visibility = 1;
4517 break;
4519 case WM_SHOWWINDOW:
4520 /* wParam non-zero means Window is about to be shown, 0 means
4521 about to be hidden. */
4522 /* Redo the mouse-highlight after the tooltip has gone. */
4523 if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
4525 tip_window = NULL;
4526 redo_mouse_highlight ();
4529 /* If window has been obscured or exposed by another window
4530 being maximised or minimised/restored, then recheck
4531 visibility of all frames. Direct changes to our own
4532 windows get handled by WM_SIZE. */
4533 #if 0
4534 if (msg.msg.lParam != 0)
4535 check_visibility = 1;
4536 else
4538 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4539 f->async_visible = msg.msg.wParam;
4541 #endif
4543 check_visibility = 1;
4544 break;
4546 case WM_SIZE:
4547 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4549 /* Inform lisp of whether frame has been iconified etc. */
4550 if (f)
4552 switch (msg.msg.wParam)
4554 case SIZE_MINIMIZED:
4555 f->async_visible = 0;
4556 f->async_iconified = 1;
4558 bufp->kind = ICONIFY_EVENT;
4559 XSETFRAME (bufp->frame_or_window, f);
4560 bufp->arg = Qnil;
4561 bufp++;
4562 count++;
4563 numchars--;
4564 break;
4566 case SIZE_MAXIMIZED:
4567 case SIZE_RESTORED:
4568 f->async_visible = 1;
4569 f->async_iconified = 0;
4571 /* wait_reading_process_input will notice this and update
4572 the frame's display structures. */
4573 SET_FRAME_GARBAGED (f);
4575 if (f->iconified)
4577 int x, y;
4579 /* Reset top and left positions of the Window
4580 here since Windows sends a WM_MOVE message
4581 BEFORE telling us the Window is minimized
4582 when the Window is iconified, with 3000,3000
4583 as the co-ords. */
4584 x_real_positions (f, &x, &y);
4585 f->left_pos = x;
4586 f->top_pos = y;
4588 bufp->kind = DEICONIFY_EVENT;
4589 XSETFRAME (bufp->frame_or_window, f);
4590 bufp->arg = Qnil;
4591 bufp++;
4592 count++;
4593 numchars--;
4595 else if (! NILP (Vframe_list)
4596 && ! NILP (XCDR (Vframe_list)))
4597 /* Force a redisplay sooner or later
4598 to update the frame titles
4599 in case this is the second frame. */
4600 record_asynch_buffer_change ();
4601 break;
4605 if (f && !f->async_iconified && msg.msg.wParam != SIZE_MINIMIZED)
4607 RECT rect;
4608 int rows;
4609 int columns;
4610 int width;
4611 int height;
4613 GetClientRect (msg.msg.hwnd, &rect);
4615 height = rect.bottom - rect.top;
4616 width = rect.right - rect.left;
4618 rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
4619 columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
4621 /* TODO: Clip size to the screen dimensions. */
4623 /* Even if the number of character rows and columns has
4624 not changed, the font size may have changed, so we need
4625 to check the pixel dimensions as well. */
4627 if (columns != FRAME_COLS (f)
4628 || rows != FRAME_LINES (f)
4629 || width != FRAME_PIXEL_WIDTH (f)
4630 || height != FRAME_PIXEL_HEIGHT (f))
4632 change_frame_size (f, rows, columns, 0, 1, 0);
4633 SET_FRAME_GARBAGED (f);
4634 cancel_mouse_face (f);
4635 FRAME_PIXEL_WIDTH (f) = width;
4636 FRAME_PIXEL_HEIGHT (f) = height;
4637 f->win_gravity = NorthWestGravity;
4641 check_visibility = 1;
4642 break;
4644 case WM_MOUSELEAVE:
4645 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4646 if (f)
4648 if (f == dpyinfo->mouse_face_mouse_frame)
4650 /* If we move outside the frame, then we're
4651 certainly no longer on any text in the frame. */
4652 clear_mouse_face (dpyinfo);
4653 dpyinfo->mouse_face_mouse_frame = 0;
4656 /* Generate a nil HELP_EVENT to cancel a help-echo.
4657 Do it only if there's something to cancel.
4658 Otherwise, the startup message is cleared when
4659 the mouse leaves the frame. */
4660 if (any_help_event_p)
4662 Lisp_Object frame;
4663 int n;
4665 XSETFRAME (frame, f);
4666 help_echo_string = Qnil;
4667 n = gen_help_event (bufp, numchars,
4668 Qnil, frame, Qnil, Qnil, 0);
4669 bufp += n, count += n, numchars -= n;
4672 break;
4674 case WM_SETFOCUS:
4675 /* TODO: Port this change:
4676 2002-06-28 Jan D. <jan.h.d@swipnet.se>
4677 * xterm.h (struct x_output): Add focus_state.
4678 * xterm.c (x_focus_changed): New function.
4679 (x_detect_focus_change): New function.
4680 (XTread_socket): Call x_detect_focus_change for FocusIn/FocusOut
4681 EnterNotify and LeaveNotify to track X focus changes.
4683 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4685 dpyinfo->w32_focus_event_frame = f;
4687 if (f)
4688 x_new_focus_frame (dpyinfo, f);
4691 dpyinfo->grabbed = 0;
4692 check_visibility = 1;
4693 break;
4695 case WM_KILLFOCUS:
4696 /* TODO: some of this belongs in MOUSE_LEAVE */
4697 f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
4699 if (f)
4701 if (f == dpyinfo->w32_focus_event_frame)
4702 dpyinfo->w32_focus_event_frame = 0;
4704 if (f == dpyinfo->w32_focus_frame)
4705 x_new_focus_frame (dpyinfo, 0);
4707 if (f == dpyinfo->mouse_face_mouse_frame)
4709 /* If we move outside the frame, then we're
4710 certainly no longer on any text in the frame. */
4711 clear_mouse_face (dpyinfo);
4712 dpyinfo->mouse_face_mouse_frame = 0;
4715 /* Generate a nil HELP_EVENT to cancel a help-echo.
4716 Do it only if there's something to cancel.
4717 Otherwise, the startup message is cleared when
4718 the mouse leaves the frame. */
4719 if (any_help_event_p)
4721 Lisp_Object frame;
4722 int n;
4724 XSETFRAME (frame, f);
4725 help_echo_string = Qnil;
4726 n = gen_help_event (bufp, numchars,
4727 Qnil, frame, Qnil, Qnil, 0);
4728 bufp += n, count += n, numchars -=n;
4732 dpyinfo->grabbed = 0;
4733 check_visibility = 1;
4734 break;
4736 case WM_CLOSE:
4737 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4739 if (f)
4741 if (numchars == 0)
4742 abort ();
4744 bufp->kind = DELETE_WINDOW_EVENT;
4745 XSETFRAME (bufp->frame_or_window, f);
4746 bufp->arg = Qnil;
4747 bufp++;
4748 count++;
4749 numchars--;
4751 break;
4753 case WM_INITMENU:
4754 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4756 if (f)
4758 if (numchars == 0)
4759 abort ();
4761 bufp->kind = MENU_BAR_ACTIVATE_EVENT;
4762 XSETFRAME (bufp->frame_or_window, f);
4763 bufp->arg = Qnil;
4764 bufp++;
4765 count++;
4766 numchars--;
4768 break;
4770 case WM_COMMAND:
4771 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4773 if (f)
4775 extern void menubar_selection_callback
4776 (FRAME_PTR f, void * client_data);
4777 menubar_selection_callback (f, (void *)msg.msg.wParam);
4780 check_visibility = 1;
4781 break;
4783 case WM_DISPLAYCHANGE:
4784 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4786 if (f)
4788 dpyinfo->width = (short) LOWORD (msg.msg.lParam);
4789 dpyinfo->height = (short) HIWORD (msg.msg.lParam);
4790 dpyinfo->n_cbits = msg.msg.wParam;
4791 DebPrint (("display change: %d %d\n", dpyinfo->width,
4792 dpyinfo->height));
4795 check_visibility = 1;
4796 break;
4798 default:
4799 /* Check for messages registered at runtime. */
4800 if (msg.msg.message == msh_mousewheel)
4802 /* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
4803 msg.msg.message = WM_MOUSEWHEEL;
4804 prepend_msg (&msg);
4806 break;
4810 /* If the focus was just given to an autoraising frame,
4811 raise it now. */
4812 /* ??? This ought to be able to handle more than one such frame. */
4813 if (pending_autoraise_frame)
4815 x_raise_frame (pending_autoraise_frame);
4816 pending_autoraise_frame = 0;
4819 /* Check which frames are still visisble, if we have enqueued any user
4820 events or been notified of events that may affect visibility. We
4821 do this here because there doesn't seem to be any direct
4822 notification from Windows that the visibility of a window has
4823 changed (at least, not in all cases). */
4824 if (count > 0 || check_visibility)
4826 Lisp_Object tail, frame;
4828 FOR_EACH_FRAME (tail, frame)
4830 FRAME_PTR f = XFRAME (frame);
4831 /* The tooltip has been drawn already. Avoid the
4832 SET_FRAME_GARBAGED below. */
4833 if (EQ (frame, tip_frame))
4834 continue;
4836 /* Check "visible" frames and mark each as obscured or not.
4837 Note that async_visible is nonzero for unobscured and
4838 obscured frames, but zero for hidden and iconified frames. */
4839 if (FRAME_W32_P (f) && f->async_visible)
4841 RECT clipbox;
4842 HDC hdc;
4844 enter_crit ();
4845 /* Query clipping rectangle for the entire window area
4846 (GetWindowDC), not just the client portion (GetDC).
4847 Otherwise, the scrollbars and menubar aren't counted as
4848 part of the visible area of the frame, and we may think
4849 the frame is obscured when really a scrollbar is still
4850 visible and gets WM_PAINT messages above. */
4851 hdc = GetWindowDC (FRAME_W32_WINDOW (f));
4852 GetClipBox (hdc, &clipbox);
4853 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
4854 leave_crit ();
4856 if (clipbox.right == clipbox.left
4857 || clipbox.bottom == clipbox.top)
4859 /* Frame has become completely obscured so mark as
4860 such (we do this by setting async_visible to 2 so
4861 that FRAME_VISIBLE_P is still true, but redisplay
4862 will skip it). */
4863 f->async_visible = 2;
4865 if (!FRAME_OBSCURED_P (f))
4867 DebPrint (("frame %p (%s) obscured\n", f,
4868 SDATA (f->name)));
4871 else
4873 /* Frame is not obscured, so mark it as such. */
4874 f->async_visible = 1;
4876 if (FRAME_OBSCURED_P (f))
4878 SET_FRAME_GARBAGED (f);
4879 DebPrint (("obscured frame %p (%s) found to be visible\n", f,
4880 SDATA (f->name)));
4882 /* Force a redisplay sooner or later. */
4883 record_asynch_buffer_change ();
4890 UNBLOCK_INPUT;
4891 return count;
4897 /***********************************************************************
4898 Text Cursor
4899 ***********************************************************************/
4901 /* Set clipping for output in glyph row ROW. W is the window in which
4902 we operate. GC is the graphics context to set clipping in.
4904 ROW may be a text row or, e.g., a mode line. Text rows must be
4905 clipped to the interior of the window dedicated to text display,
4906 mode lines must be clipped to the whole window. */
4908 static void
4909 w32_clip_to_row (w, row, hdc)
4910 struct window *w;
4911 struct glyph_row *row;
4912 HDC hdc;
4914 struct frame *f = XFRAME (WINDOW_FRAME (w));
4915 RECT clip_rect;
4916 int window_y, window_width;
4918 window_box (w, -1, 0, &window_y, &window_width, 0);
4920 clip_rect.left = WINDOW_TO_FRAME_PIXEL_X (w, 0);
4921 clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
4922 clip_rect.top = max (clip_rect.top, window_y);
4923 clip_rect.right = clip_rect.left + window_width;
4924 clip_rect.bottom = clip_rect.top + row->visible_height;
4926 w32_set_clip_rectangle (hdc, &clip_rect);
4930 /* Draw a hollow box cursor on window W in glyph row ROW. */
4932 static void
4933 x_draw_hollow_cursor (w, row)
4934 struct window *w;
4935 struct glyph_row *row;
4937 struct frame *f = XFRAME (WINDOW_FRAME (w));
4938 HDC hdc;
4939 RECT rect;
4940 int wd;
4941 struct glyph *cursor_glyph;
4942 HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
4944 /* Compute frame-relative coordinates from window-relative
4945 coordinates. */
4946 rect.left = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
4947 rect.top = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
4948 + row->ascent - w->phys_cursor_ascent);
4949 rect.bottom = rect.top + row->height;
4951 /* Get the glyph the cursor is on. If we can't tell because
4952 the current matrix is invalid or such, give up. */
4953 cursor_glyph = get_phys_cursor_glyph (w);
4954 if (cursor_glyph == NULL)
4955 return;
4957 /* Compute the width of the rectangle to draw. If on a stretch
4958 glyph, and `x-stretch-block-cursor' is nil, don't draw a
4959 rectangle as wide as the glyph, but use a canonical character
4960 width instead. */
4961 wd = cursor_glyph->pixel_width;
4962 if (cursor_glyph->type == STRETCH_GLYPH
4963 && !x_stretch_cursor_p)
4964 wd = min (FRAME_COLUMN_WIDTH (f), wd);
4965 w->phys_cursor_width = wd;
4967 rect.right = rect.left + wd;
4968 hdc = get_frame_dc (f);
4969 /* Set clipping, draw the rectangle, and reset clipping again. */
4970 w32_clip_to_row (w, row, hdc);
4971 FrameRect (hdc, &rect, hb);
4972 DeleteObject (hb);
4973 w32_set_clip_rectangle (hdc, NULL);
4974 release_frame_dc (f, hdc);
4978 /* Draw a bar cursor on window W in glyph row ROW.
4980 Implementation note: One would like to draw a bar cursor with an
4981 angle equal to the one given by the font property XA_ITALIC_ANGLE.
4982 Unfortunately, I didn't find a font yet that has this property set.
4983 --gerd. */
4985 static void
4986 x_draw_bar_cursor (w, row, width, kind)
4987 struct window *w;
4988 struct glyph_row *row;
4989 int width;
4990 enum text_cursor_kinds kind;
4992 struct frame *f = XFRAME (w->frame);
4993 struct glyph *cursor_glyph;
4994 int x;
4995 HDC hdc;
4997 /* If cursor is out of bounds, don't draw garbage. This can happen
4998 in mini-buffer windows when switching between echo area glyphs
4999 and mini-buffer. */
5000 cursor_glyph = get_phys_cursor_glyph (w);
5001 if (cursor_glyph == NULL)
5002 return;
5004 /* If on an image, draw like a normal cursor. That's usually better
5005 visible than drawing a bar, esp. if the image is large so that
5006 the bar might not be in the window. */
5007 if (cursor_glyph->type == IMAGE_GLYPH)
5009 struct glyph_row *row;
5010 row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
5011 draw_phys_cursor_glyph (w, row, DRAW_CURSOR);
5013 else
5015 COLORREF cursor_color = f->output_data.w32->cursor_pixel;
5016 struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
5018 /* If the glyph's background equals the color we normally draw
5019 the bar cursor in, the bar cursor in its normal color is
5020 invisible. Use the glyph's foreground color instead in this
5021 case, on the assumption that the glyph's colors are chosen so
5022 that the glyph is legible. */
5023 if (face->background == cursor_color)
5024 cursor_color = face->foreground;
5026 x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5028 if (width < 0)
5029 width = FRAME_CURSOR_WIDTH (f);
5030 width = min (cursor_glyph->pixel_width, width);
5032 w->phys_cursor_width = width;
5035 hdc = get_frame_dc (f);
5036 w32_clip_to_row (w, row, hdc);
5038 if (kind == BAR_CURSOR)
5040 w32_fill_area (f, hdc, cursor_color, x,
5041 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
5042 width, row->height);
5044 else
5046 w32_fill_area (f, hdc, cursor_color, x,
5047 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
5048 row->height - width),
5049 cursor_glyph->pixel_width, width);
5052 w32_set_clip_rectangle (hdc, NULL);
5053 release_frame_dc (f, hdc);
5058 /* RIF: Define cursor CURSOR on frame F. */
5060 static void
5061 w32_define_frame_cursor (f, cursor)
5062 struct frame *f;
5063 Cursor cursor;
5065 w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
5069 /* RIF: Clear area on frame F. */
5071 static void
5072 w32_clear_frame_area (f, x, y, width, height)
5073 struct frame *f;
5074 int x, y, width, height;
5076 HDC hdc;
5078 hdc = get_frame_dc (f);
5079 w32_clear_area (f, hdc, x, y, width, height);
5080 release_frame_dc (f, hdc);
5083 /* RIF: Draw or clear cursor on window W. */
5085 static void
5086 w32_draw_window_cursor (w, glyph_row, x, y, cursor_type, cursor_width, on_p, active_p)
5087 struct window *w;
5088 struct glyph_row *glyph_row;
5089 int x, y;
5090 int cursor_type, cursor_width;
5091 int on_p, active_p;
5093 if (on_p)
5095 /* If the user wants to use the system caret, make sure our own
5096 cursor remains invisible. */
5097 if (w32_use_visible_system_caret)
5099 if (w->phys_cursor_type != NO_CURSOR)
5100 erase_phys_cursor (w);
5102 cursor_type = w->phys_cursor_type = NO_CURSOR;
5103 w->phys_cursor_width = -1;
5105 else
5107 w->phys_cursor_type = cursor_type;
5110 w->phys_cursor_on_p = 1;
5112 /* If this is the active cursor, we need to track it with the
5113 system caret, so third party software like screen magnifiers
5114 and speech synthesizers can follow the cursor. */
5115 if (active_p)
5117 struct frame *f = XFRAME (WINDOW_FRAME (w));
5118 HWND hwnd = FRAME_W32_WINDOW (f);
5120 w32_system_caret_x
5121 = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5122 w32_system_caret_y
5123 = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
5124 + glyph_row->ascent - w->phys_cursor_ascent);
5126 /* If the size of the active cursor changed, destroy the old
5127 system caret. */
5128 if (w32_system_caret_hwnd
5129 && (w32_system_caret_height != w->phys_cursor_height))
5130 PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
5132 w32_system_caret_height = w->phys_cursor_height;
5134 /* Move the system caret. */
5135 PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
5138 if (glyph_row->exact_window_width_line_p
5139 && w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])
5141 glyph_row->cursor_in_fringe_p = 1;
5142 draw_fringe_bitmap (w, glyph_row, 0);
5143 return;
5146 switch (cursor_type)
5148 case HOLLOW_BOX_CURSOR:
5149 x_draw_hollow_cursor (w, glyph_row);
5150 break;
5152 case FILLED_BOX_CURSOR:
5153 draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
5154 break;
5156 case BAR_CURSOR:
5157 x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
5158 break;
5160 case HBAR_CURSOR:
5161 x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
5162 break;
5164 case NO_CURSOR:
5165 w->phys_cursor_width = 0;
5166 break;
5168 default:
5169 abort ();
5176 /* Icons. */
5179 x_bitmap_icon (f, icon)
5180 struct frame *f;
5181 Lisp_Object icon;
5183 HANDLE hicon;
5185 if (FRAME_W32_WINDOW (f) == 0)
5186 return 1;
5188 if (NILP (icon))
5189 hicon = LoadIcon (hinst, EMACS_CLASS);
5190 else if (STRINGP (icon))
5191 hicon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
5192 LR_DEFAULTSIZE | LR_LOADFROMFILE);
5193 else if (SYMBOLP (icon))
5195 LPCTSTR name;
5197 if (EQ (icon, intern ("application")))
5198 name = (LPCTSTR) IDI_APPLICATION;
5199 else if (EQ (icon, intern ("hand")))
5200 name = (LPCTSTR) IDI_HAND;
5201 else if (EQ (icon, intern ("question")))
5202 name = (LPCTSTR) IDI_QUESTION;
5203 else if (EQ (icon, intern ("exclamation")))
5204 name = (LPCTSTR) IDI_EXCLAMATION;
5205 else if (EQ (icon, intern ("asterisk")))
5206 name = (LPCTSTR) IDI_ASTERISK;
5207 else if (EQ (icon, intern ("winlogo")))
5208 name = (LPCTSTR) IDI_WINLOGO;
5209 else
5210 return 1;
5212 hicon = LoadIcon (NULL, name);
5214 else
5215 return 1;
5217 if (hicon == NULL)
5218 return 1;
5220 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
5221 (LPARAM) hicon);
5223 return 0;
5227 /************************************************************************
5228 Handling X errors
5229 ************************************************************************/
5231 /* Display Error Handling functions not used on W32. Listing them here
5232 helps diff stay in step when comparing w32term.c with xterm.c.
5234 x_error_catcher (display, error)
5235 x_catch_errors (dpy)
5236 x_catch_errors_unwind (old_val)
5237 x_check_errors (dpy, format)
5238 x_had_errors_p (dpy)
5239 x_clear_errors (dpy)
5240 x_uncatch_errors (dpy, count)
5241 x_trace_wire ()
5242 x_connection_signal (signalnum)
5243 x_connection_closed (dpy, error_message)
5244 x_error_quitter (display, error)
5245 x_error_handler (display, error)
5246 x_io_error_quitter (display)
5251 /* Changing the font of the frame. */
5253 /* Give frame F the font named FONTNAME as its default font, and
5254 return the full name of that font. FONTNAME may be a wildcard
5255 pattern; in that case, we choose some font that fits the pattern.
5256 The return value shows which font we chose. */
5258 Lisp_Object
5259 x_new_font (f, fontname)
5260 struct frame *f;
5261 register char *fontname;
5263 struct font_info *fontp
5264 = FS_LOAD_FONT (f, 0, fontname, -1);
5266 if (!fontp)
5267 return Qnil;
5269 FRAME_FONT (f) = (XFontStruct *) (fontp->font);
5270 FRAME_BASELINE_OFFSET (f) = fontp->baseline_offset;
5271 FRAME_FONTSET (f) = -1;
5273 FRAME_COLUMN_WIDTH (f) = FONT_WIDTH (FRAME_FONT (f));
5274 FRAME_LINE_HEIGHT (f) = FONT_HEIGHT (FRAME_FONT (f));
5276 compute_fringe_widths (f, 1);
5278 /* Compute the scroll bar width in character columns. */
5279 if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
5281 int wid = FRAME_COLUMN_WIDTH (f);
5282 FRAME_CONFIG_SCROLL_BAR_COLS (f)
5283 = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid-1) / wid;
5285 else
5287 int wid = FRAME_COLUMN_WIDTH (f);
5288 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
5291 /* Now make the frame display the given font. */
5292 if (FRAME_W32_WINDOW (f) != 0)
5294 if (NILP (tip_frame) || XFRAME (tip_frame) != f)
5295 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
5298 return build_string (fontp->full_name);
5301 /* Give frame F the fontset named FONTSETNAME as its default font, and
5302 return the full name of that fontset. FONTSETNAME may be a wildcard
5303 pattern; in that case, we choose some fontset that fits the pattern.
5304 The return value shows which fontset we chose. */
5306 Lisp_Object
5307 x_new_fontset (f, fontsetname)
5308 struct frame *f;
5309 char *fontsetname;
5311 int fontset = fs_query_fontset (build_string (fontsetname), 0);
5312 Lisp_Object result;
5314 if (fontset < 0)
5315 return Qnil;
5317 if (FRAME_FONTSET (f) == fontset)
5318 /* This fontset is already set in frame F. There's nothing more
5319 to do. */
5320 return fontset_name (fontset);
5322 result = x_new_font (f, (SDATA (fontset_ascii (fontset))));
5324 if (!STRINGP (result))
5325 /* Can't load ASCII font. */
5326 return Qnil;
5328 /* Since x_new_font doesn't update any fontset information, do it now. */
5329 FRAME_FONTSET(f) = fontset;
5331 return build_string (fontsetname);
5335 /***********************************************************************
5336 TODO: W32 Input Methods
5337 ***********************************************************************/
5338 /* Listing missing functions from xterm.c helps diff stay in step.
5340 xim_destroy_callback (xim, client_data, call_data)
5341 xim_open_dpy (dpyinfo, resource_name)
5342 struct xim_inst_t
5343 xim_instantiate_callback (display, client_data, call_data)
5344 xim_initialize (dpyinfo, resource_name)
5345 xim_close_dpy (dpyinfo)
5350 /* Calculate the absolute position in frame F
5351 from its current recorded position values and gravity. */
5353 void
5354 x_calc_absolute_position (f)
5355 struct frame *f;
5357 POINT pt;
5358 int flags = f->size_hint_flags;
5360 pt.x = pt.y = 0;
5362 /* Find the position of the outside upper-left corner of
5363 the inner window, with respect to the outer window.
5364 But do this only if we will need the results. */
5365 if (f->output_data.w32->parent_desc != FRAME_W32_DISPLAY_INFO (f)->root_window)
5367 BLOCK_INPUT;
5368 MapWindowPoints (FRAME_W32_WINDOW (f),
5369 f->output_data.w32->parent_desc,
5370 &pt, 1);
5371 UNBLOCK_INPUT;
5375 RECT rt;
5376 rt.left = rt.right = rt.top = rt.bottom = 0;
5378 BLOCK_INPUT;
5379 AdjustWindowRect(&rt, f->output_data.w32->dwStyle,
5380 FRAME_EXTERNAL_MENU_BAR (f));
5381 UNBLOCK_INPUT;
5383 pt.x += (rt.right - rt.left);
5384 pt.y += (rt.bottom - rt.top);
5387 /* Treat negative positions as relative to the leftmost bottommost
5388 position that fits on the screen. */
5389 if (flags & XNegative)
5390 f->left_pos = (FRAME_W32_DISPLAY_INFO (f)->width
5391 - 2 * f->border_width - pt.x
5392 - FRAME_PIXEL_WIDTH (f)
5393 + f->left_pos);
5395 if (flags & YNegative)
5396 f->top_pos = (FRAME_W32_DISPLAY_INFO (f)->height
5397 - 2 * f->border_width - pt.y
5398 - FRAME_PIXEL_HEIGHT (f)
5399 + f->top_pos);
5400 /* The left_pos and top_pos
5401 are now relative to the top and left screen edges,
5402 so the flags should correspond. */
5403 f->size_hint_flags &= ~ (XNegative | YNegative);
5406 /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
5407 to really change the position, and 0 when calling from
5408 x_make_frame_visible (in that case, XOFF and YOFF are the current
5409 position values). It is -1 when calling from x_set_frame_parameters,
5410 which means, do adjust for borders but don't change the gravity. */
5412 void
5413 x_set_offset (f, xoff, yoff, change_gravity)
5414 struct frame *f;
5415 register int xoff, yoff;
5416 int change_gravity;
5418 int modified_top, modified_left;
5420 if (change_gravity > 0)
5422 f->top_pos = yoff;
5423 f->left_pos = xoff;
5424 f->size_hint_flags &= ~ (XNegative | YNegative);
5425 if (xoff < 0)
5426 f->size_hint_flags |= XNegative;
5427 if (yoff < 0)
5428 f->size_hint_flags |= YNegative;
5429 f->win_gravity = NorthWestGravity;
5431 x_calc_absolute_position (f);
5433 BLOCK_INPUT;
5434 x_wm_set_size_hint (f, (long) 0, 0);
5436 modified_left = f->left_pos;
5437 modified_top = f->top_pos;
5439 my_set_window_pos (FRAME_W32_WINDOW (f),
5440 NULL,
5441 modified_left, modified_top,
5442 0, 0,
5443 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
5444 UNBLOCK_INPUT;
5448 /* Check if we need to resize the frame due to a fullscreen request.
5449 If so needed, resize the frame. */
5450 static void
5451 x_check_fullscreen (f)
5452 struct frame *f;
5454 if (f->want_fullscreen & FULLSCREEN_BOTH)
5456 int width, height, ign;
5458 x_real_positions (f, &f->left_pos, &f->top_pos);
5460 x_fullscreen_adjust (f, &width, &height, &ign, &ign);
5462 /* We do not need to move the window, it shall be taken care of
5463 when setting WM manager hints. */
5464 if (FRAME_COLS (f) != width || FRAME_LINES (f) != height)
5466 change_frame_size (f, height, width, 0, 1, 0);
5467 SET_FRAME_GARBAGED (f);
5468 cancel_mouse_face (f);
5470 /* Wait for the change of frame size to occur */
5471 f->want_fullscreen |= FULLSCREEN_WAIT;
5476 /* Call this to change the size of frame F's x-window.
5477 If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
5478 for this size change and subsequent size changes.
5479 Otherwise we leave the window gravity unchanged. */
5481 void
5482 x_set_window_size (f, change_gravity, cols, rows)
5483 struct frame *f;
5484 int change_gravity;
5485 int cols, rows;
5487 int pixelwidth, pixelheight;
5489 BLOCK_INPUT;
5491 check_frame_size (f, &rows, &cols);
5492 f->scroll_bar_actual_width
5493 = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f);
5495 compute_fringe_widths (f, 0);
5497 pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols);
5498 pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
5500 f->win_gravity = NorthWestGravity;
5501 x_wm_set_size_hint (f, (long) 0, 0);
5504 RECT rect;
5506 rect.left = rect.top = 0;
5507 rect.right = pixelwidth;
5508 rect.bottom = pixelheight;
5510 AdjustWindowRect(&rect, f->output_data.w32->dwStyle,
5511 FRAME_EXTERNAL_MENU_BAR (f));
5513 my_set_window_pos (FRAME_W32_WINDOW (f),
5514 NULL,
5515 0, 0,
5516 rect.right - rect.left,
5517 rect.bottom - rect.top,
5518 SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
5521 /* Now, strictly speaking, we can't be sure that this is accurate,
5522 but the window manager will get around to dealing with the size
5523 change request eventually, and we'll hear how it went when the
5524 ConfigureNotify event gets here.
5526 We could just not bother storing any of this information here,
5527 and let the ConfigureNotify event set everything up, but that
5528 might be kind of confusing to the Lisp code, since size changes
5529 wouldn't be reported in the frame parameters until some random
5530 point in the future when the ConfigureNotify event arrives.
5532 We pass 1 for DELAY since we can't run Lisp code inside of
5533 a BLOCK_INPUT. */
5534 change_frame_size (f, rows, cols, 0, 1, 0);
5535 FRAME_PIXEL_WIDTH (f) = pixelwidth;
5536 FRAME_PIXEL_HEIGHT (f) = pixelheight;
5538 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
5539 receive in the ConfigureNotify event; if we get what we asked
5540 for, then the event won't cause the screen to become garbaged, so
5541 we have to make sure to do it here. */
5542 SET_FRAME_GARBAGED (f);
5544 /* If cursor was outside the new size, mark it as off. */
5545 mark_window_cursors_off (XWINDOW (f->root_window));
5547 /* Clear out any recollection of where the mouse highlighting was,
5548 since it might be in a place that's outside the new frame size.
5549 Actually checking whether it is outside is a pain in the neck,
5550 so don't try--just let the highlighting be done afresh with new size. */
5551 cancel_mouse_face (f);
5553 UNBLOCK_INPUT;
5556 /* Mouse warping. */
5558 void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
5560 void
5561 x_set_mouse_position (f, x, y)
5562 struct frame *f;
5563 int x, y;
5565 int pix_x, pix_y;
5567 pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
5568 pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
5570 if (pix_x < 0) pix_x = 0;
5571 if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
5573 if (pix_y < 0) pix_y = 0;
5574 if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
5576 x_set_mouse_pixel_position (f, pix_x, pix_y);
5579 void
5580 x_set_mouse_pixel_position (f, pix_x, pix_y)
5581 struct frame *f;
5582 int pix_x, pix_y;
5584 RECT rect;
5585 POINT pt;
5587 BLOCK_INPUT;
5589 GetClientRect (FRAME_W32_WINDOW (f), &rect);
5590 pt.x = rect.left + pix_x;
5591 pt.y = rect.top + pix_y;
5592 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
5594 SetCursorPos (pt.x, pt.y);
5596 UNBLOCK_INPUT;
5600 /* focus shifting, raising and lowering. */
5602 void
5603 x_focus_on_frame (f)
5604 struct frame *f;
5606 struct w32_display_info *dpyinfo = &one_w32_display_info;
5608 /* Give input focus to frame. */
5609 BLOCK_INPUT;
5610 #if 0
5611 /* Try not to change its Z-order if possible. */
5612 if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
5613 my_set_focus (f, FRAME_W32_WINDOW (f));
5614 else
5615 #endif
5616 my_set_foreground_window (FRAME_W32_WINDOW (f));
5617 UNBLOCK_INPUT;
5620 void
5621 x_unfocus_frame (f)
5622 struct frame *f;
5626 /* Raise frame F. */
5627 void
5628 x_raise_frame (f)
5629 struct frame *f;
5631 BLOCK_INPUT;
5633 /* Strictly speaking, raise-frame should only change the frame's Z
5634 order, leaving input focus unchanged. This is reasonable behaviour
5635 on X where the usual policy is point-to-focus. However, this
5636 behaviour would be very odd on Windows where the usual policy is
5637 click-to-focus.
5639 On X, if the mouse happens to be over the raised frame, it gets
5640 input focus anyway (so the window with focus will never be
5641 completely obscured) - if not, then just moving the mouse over it
5642 is sufficient to give it focus. On Windows, the user must actually
5643 click on the frame (preferrably the title bar so as not to move
5644 point), which is more awkward. Also, no other Windows program
5645 raises a window to the top but leaves another window (possibly now
5646 completely obscured) with input focus.
5648 Because there is a system setting on Windows that allows the user
5649 to choose the point to focus policy, we make the strict semantics
5650 optional, but by default we grab focus when raising. */
5652 if (NILP (Vw32_grab_focus_on_raise))
5654 /* The obvious call to my_set_window_pos doesn't work if Emacs is
5655 not already the foreground application: the frame is raised
5656 above all other frames belonging to us, but not above the
5657 current top window. To achieve that, we have to resort to this
5658 more cumbersome method. */
5660 HDWP handle = BeginDeferWindowPos (2);
5661 if (handle)
5663 DeferWindowPos (handle,
5664 FRAME_W32_WINDOW (f),
5665 HWND_TOP,
5666 0, 0, 0, 0,
5667 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5669 DeferWindowPos (handle,
5670 GetForegroundWindow (),
5671 FRAME_W32_WINDOW (f),
5672 0, 0, 0, 0,
5673 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5675 EndDeferWindowPos (handle);
5678 else
5680 my_set_foreground_window (FRAME_W32_WINDOW (f));
5683 UNBLOCK_INPUT;
5686 /* Lower frame F. */
5687 void
5688 x_lower_frame (f)
5689 struct frame *f;
5691 BLOCK_INPUT;
5692 my_set_window_pos (FRAME_W32_WINDOW (f),
5693 HWND_BOTTOM,
5694 0, 0, 0, 0,
5695 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5696 UNBLOCK_INPUT;
5699 static void
5700 w32_frame_raise_lower (f, raise_flag)
5701 FRAME_PTR f;
5702 int raise_flag;
5704 if (! FRAME_W32_P (f))
5705 return;
5707 if (raise_flag)
5708 x_raise_frame (f);
5709 else
5710 x_lower_frame (f);
5713 /* Change of visibility. */
5715 /* This tries to wait until the frame is really visible.
5716 However, if the window manager asks the user where to position
5717 the frame, this will return before the user finishes doing that.
5718 The frame will not actually be visible at that time,
5719 but it will become visible later when the window manager
5720 finishes with it. */
5722 void
5723 x_make_frame_visible (f)
5724 struct frame *f;
5726 Lisp_Object type;
5728 BLOCK_INPUT;
5730 type = x_icon_type (f);
5731 if (!NILP (type))
5732 x_bitmap_icon (f, type);
5734 if (! FRAME_VISIBLE_P (f))
5736 /* We test FRAME_GARBAGED_P here to make sure we don't
5737 call x_set_offset a second time
5738 if we get to x_make_frame_visible a second time
5739 before the window gets really visible. */
5740 if (! FRAME_ICONIFIED_P (f)
5741 && ! f->output_data.w32->asked_for_visible)
5742 x_set_offset (f, f->left_pos, f->top_pos, 0);
5744 f->output_data.w32->asked_for_visible = 1;
5746 /* my_show_window (f, FRAME_W32_WINDOW (f), f->async_iconified ? SW_RESTORE : SW_SHOW); */
5747 my_show_window (f, FRAME_W32_WINDOW (f), SW_SHOWNORMAL);
5750 /* Synchronize to ensure Emacs knows the frame is visible
5751 before we do anything else. We do this loop with input not blocked
5752 so that incoming events are handled. */
5754 Lisp_Object frame;
5755 int count;
5757 /* This must come after we set COUNT. */
5758 UNBLOCK_INPUT;
5760 XSETFRAME (frame, f);
5762 /* Wait until the frame is visible. Process X events until a
5763 MapNotify event has been seen, or until we think we won't get a
5764 MapNotify at all.. */
5765 for (count = input_signal_count + 10;
5766 input_signal_count < count && !FRAME_VISIBLE_P (f);)
5768 /* Force processing of queued events. */
5769 /* TODO: x_sync equivalent? */
5771 /* Machines that do polling rather than SIGIO have been observed
5772 to go into a busy-wait here. So we'll fake an alarm signal
5773 to let the handler know that there's something to be read.
5774 We used to raise a real alarm, but it seems that the handler
5775 isn't always enabled here. This is probably a bug. */
5776 if (input_polling_used ())
5778 /* It could be confusing if a real alarm arrives while processing
5779 the fake one. Turn it off and let the handler reset it. */
5780 int old_poll_suppress_count = poll_suppress_count;
5781 poll_suppress_count = 1;
5782 poll_for_input_1 ();
5783 poll_suppress_count = old_poll_suppress_count;
5786 FRAME_SAMPLE_VISIBILITY (f);
5790 /* Change from mapped state to withdrawn state. */
5792 /* Make the frame visible (mapped and not iconified). */
5794 x_make_frame_invisible (f)
5795 struct frame *f;
5797 /* Don't keep the highlight on an invisible frame. */
5798 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5799 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5801 BLOCK_INPUT;
5803 my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
5805 /* We can't distinguish this from iconification
5806 just by the event that we get from the server.
5807 So we can't win using the usual strategy of letting
5808 FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
5809 and synchronize with the server to make sure we agree. */
5810 f->visible = 0;
5811 FRAME_ICONIFIED_P (f) = 0;
5812 f->async_visible = 0;
5813 f->async_iconified = 0;
5815 UNBLOCK_INPUT;
5818 /* Change window state from mapped to iconified. */
5820 void
5821 x_iconify_frame (f)
5822 struct frame *f;
5824 Lisp_Object type;
5826 /* Don't keep the highlight on an invisible frame. */
5827 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5828 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5830 if (f->async_iconified)
5831 return;
5833 BLOCK_INPUT;
5835 type = x_icon_type (f);
5836 if (!NILP (type))
5837 x_bitmap_icon (f, type);
5839 /* Simulate the user minimizing the frame. */
5840 SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
5842 UNBLOCK_INPUT;
5846 /* Free X resources of frame F. */
5848 void
5849 x_free_frame_resources (f)
5850 struct frame *f;
5852 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5854 BLOCK_INPUT;
5856 if (FRAME_W32_WINDOW (f))
5857 my_destroy_window (f, FRAME_W32_WINDOW (f));
5859 free_frame_menubar (f);
5861 unload_color (f, f->output_data.x->foreground_pixel);
5862 unload_color (f, f->output_data.x->background_pixel);
5863 unload_color (f, f->output_data.w32->cursor_pixel);
5864 unload_color (f, f->output_data.w32->cursor_foreground_pixel);
5865 unload_color (f, f->output_data.w32->border_pixel);
5866 unload_color (f, f->output_data.w32->mouse_pixel);
5867 if (f->output_data.w32->white_relief.allocated_p)
5868 unload_color (f, f->output_data.w32->white_relief.pixel);
5869 if (f->output_data.w32->black_relief.allocated_p)
5870 unload_color (f, f->output_data.w32->black_relief.pixel);
5872 if (FRAME_FACE_CACHE (f))
5873 free_frame_faces (f);
5875 xfree (f->output_data.w32);
5876 f->output_data.w32 = NULL;
5878 if (f == dpyinfo->w32_focus_frame)
5879 dpyinfo->w32_focus_frame = 0;
5880 if (f == dpyinfo->w32_focus_event_frame)
5881 dpyinfo->w32_focus_event_frame = 0;
5882 if (f == dpyinfo->x_highlight_frame)
5883 dpyinfo->x_highlight_frame = 0;
5885 if (f == dpyinfo->mouse_face_mouse_frame)
5887 dpyinfo->mouse_face_beg_row
5888 = dpyinfo->mouse_face_beg_col = -1;
5889 dpyinfo->mouse_face_end_row
5890 = dpyinfo->mouse_face_end_col = -1;
5891 dpyinfo->mouse_face_window = Qnil;
5892 dpyinfo->mouse_face_deferred_gc = 0;
5893 dpyinfo->mouse_face_mouse_frame = 0;
5896 UNBLOCK_INPUT;
5900 /* Destroy the window of frame F. */
5902 x_destroy_window (f)
5903 struct frame *f;
5905 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5907 x_free_frame_resources (f);
5909 dpyinfo->reference_count--;
5913 /* Setting window manager hints. */
5915 /* Set the normal size hints for the window manager, for frame F.
5916 FLAGS is the flags word to use--or 0 meaning preserve the flags
5917 that the window now has.
5918 If USER_POSITION is nonzero, we set the USPosition
5919 flag (this is useful when FLAGS is 0). */
5920 void
5921 x_wm_set_size_hint (f, flags, user_position)
5922 struct frame *f;
5923 long flags;
5924 int user_position;
5926 Window window = FRAME_W32_WINDOW (f);
5928 enter_crit ();
5930 SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
5931 SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
5932 SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
5933 SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
5935 leave_crit ();
5938 /* Window manager things */
5939 void
5940 x_wm_set_icon_position (f, icon_x, icon_y)
5941 struct frame *f;
5942 int icon_x, icon_y;
5944 #if 0
5945 Window window = FRAME_W32_WINDOW (f);
5947 f->display.x->wm_hints.flags |= IconPositionHint;
5948 f->display.x->wm_hints.icon_x = icon_x;
5949 f->display.x->wm_hints.icon_y = icon_y;
5951 XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
5952 #endif
5956 /***********************************************************************
5957 Fonts
5958 ***********************************************************************/
5960 /* The following functions are listed here to help diff stay in step
5961 with xterm.c. See w32fns.c for definitions.
5963 x_get_font_info (f, font_idx)
5964 x_list_fonts (f, pattern, size, maxnames)
5968 #if GLYPH_DEBUG
5970 /* Check that FONT is valid on frame F. It is if it can be found in F's
5971 font table. */
5973 static void
5974 x_check_font (f, font)
5975 struct frame *f;
5976 XFontStruct *font;
5978 int i;
5979 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5981 xassert (font != NULL);
5983 for (i = 0; i < dpyinfo->n_fonts; i++)
5984 if (dpyinfo->font_table[i].name
5985 && font == dpyinfo->font_table[i].font)
5986 break;
5988 xassert (i < dpyinfo->n_fonts);
5991 #endif /* GLYPH_DEBUG != 0 */
5993 /* Set *W to the minimum width, *H to the minimum font height of FONT.
5994 Note: There are (broken) X fonts out there with invalid XFontStruct
5995 min_bounds contents. For example, handa@etl.go.jp reports that
5996 "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1" fonts
5997 have font->min_bounds.width == 0. */
5999 static INLINE void
6000 x_font_min_bounds (font, w, h)
6001 XFontStruct *font;
6002 int *w, *h;
6005 * TODO: Windows does not appear to offer min bound, only
6006 * average and maximum width, and maximum height.
6008 *h = FONT_HEIGHT (font);
6009 *w = FONT_WIDTH (font);
6013 /* Compute the smallest character width and smallest font height over
6014 all fonts available on frame F. Set the members smallest_char_width
6015 and smallest_font_height in F's x_display_info structure to
6016 the values computed. Value is non-zero if smallest_font_height or
6017 smallest_char_width become smaller than they were before. */
6020 x_compute_min_glyph_bounds (f)
6021 struct frame *f;
6023 int i;
6024 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
6025 XFontStruct *font;
6026 int old_width = dpyinfo->smallest_char_width;
6027 int old_height = dpyinfo->smallest_font_height;
6029 dpyinfo->smallest_font_height = 100000;
6030 dpyinfo->smallest_char_width = 100000;
6032 for (i = 0; i < dpyinfo->n_fonts; ++i)
6033 if (dpyinfo->font_table[i].name)
6035 struct font_info *fontp = dpyinfo->font_table + i;
6036 int w, h;
6038 font = (XFontStruct *) fontp->font;
6039 xassert (font != (XFontStruct *) ~0);
6040 x_font_min_bounds (font, &w, &h);
6042 dpyinfo->smallest_font_height = min (dpyinfo->smallest_font_height, h);
6043 dpyinfo->smallest_char_width = min (dpyinfo->smallest_char_width, w);
6046 xassert (dpyinfo->smallest_char_width > 0
6047 && dpyinfo->smallest_font_height > 0);
6049 return (dpyinfo->n_fonts == 1
6050 || dpyinfo->smallest_char_width < old_width
6051 || dpyinfo->smallest_font_height < old_height);
6054 /* The following functions are listed here to help diff stay in step
6055 with xterm.c. See w32fns.c for definitions.
6057 x_load_font (f, fontname, size)
6058 x_query_font (f, fontname)
6059 x_find_ccl_program (fontp)
6063 /***********************************************************************
6064 Initialization
6065 ***********************************************************************/
6067 static int w32_initialized = 0;
6069 void
6070 w32_initialize_display_info (display_name)
6071 Lisp_Object display_name;
6073 struct w32_display_info *dpyinfo = &one_w32_display_info;
6075 bzero (dpyinfo, sizeof (*dpyinfo));
6077 /* Put it on w32_display_name_list. */
6078 w32_display_name_list = Fcons (Fcons (display_name, Qnil),
6079 w32_display_name_list);
6080 dpyinfo->name_list_element = XCAR (w32_display_name_list);
6082 dpyinfo->w32_id_name
6083 = (char *) xmalloc (SCHARS (Vinvocation_name)
6084 + SCHARS (Vsystem_name)
6085 + 2);
6086 sprintf (dpyinfo->w32_id_name, "%s@%s",
6087 SDATA (Vinvocation_name), SDATA (Vsystem_name));
6089 /* Default Console mode values - overridden when running in GUI mode
6090 with values obtained from system metrics. */
6091 dpyinfo->resx = 1;
6092 dpyinfo->resy = 1;
6093 dpyinfo->height_in = 1;
6094 dpyinfo->width_in = 1;
6095 dpyinfo->n_planes = 1;
6096 dpyinfo->n_cbits = 4;
6097 dpyinfo->n_fonts = 0;
6098 dpyinfo->smallest_font_height = 1;
6099 dpyinfo->smallest_char_width = 1;
6101 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
6102 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
6103 dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID;
6104 dpyinfo->mouse_face_window = Qnil;
6105 dpyinfo->mouse_face_overlay = Qnil;
6106 dpyinfo->mouse_face_hidden = 0;
6108 dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
6109 /* TODO: dpyinfo->gray */
6113 /* Create an xrdb-style database of resources to supercede registry settings.
6114 The database is just a concatenation of C strings, finished by an additional
6115 \0. The string are submitted to some basic normalization, so
6117 [ *]option[ *]:[ *]value...
6119 becomes
6121 option:value...
6123 but any whitespace following value is not removed. */
6125 static char *
6126 w32_make_rdb (xrm_option)
6127 char *xrm_option;
6129 char *buffer = xmalloc (strlen (xrm_option) + 2);
6130 char *current = buffer;
6131 char ch;
6132 int in_option = 1;
6133 int before_value = 0;
6135 do {
6136 ch = *xrm_option++;
6138 if (ch == '\n')
6140 *current++ = '\0';
6141 in_option = 1;
6142 before_value = 0;
6144 else if (ch != ' ')
6146 *current++ = ch;
6147 if (in_option && (ch == ':'))
6149 in_option = 0;
6150 before_value = 1;
6152 else if (before_value)
6154 before_value = 0;
6157 else if (!(in_option || before_value))
6159 *current++ = ch;
6161 } while (ch);
6163 *current = '\0';
6165 return buffer;
6168 struct w32_display_info *
6169 w32_term_init (display_name, xrm_option, resource_name)
6170 Lisp_Object display_name;
6171 char *xrm_option;
6172 char *resource_name;
6174 struct w32_display_info *dpyinfo;
6175 HDC hdc;
6177 BLOCK_INPUT;
6179 if (!w32_initialized)
6181 w32_initialize ();
6182 w32_initialized = 1;
6185 w32_initialize_display_info (display_name);
6187 dpyinfo = &one_w32_display_info;
6189 dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
6191 /* Put this display on the chain. */
6192 dpyinfo->next = x_display_list;
6193 x_display_list = dpyinfo;
6195 hdc = GetDC (GetDesktopWindow ());
6197 dpyinfo->height = GetDeviceCaps (hdc, VERTRES);
6198 dpyinfo->width = GetDeviceCaps (hdc, HORZRES);
6199 dpyinfo->root_window = GetDesktopWindow ();
6200 dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
6201 dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
6202 dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
6203 dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
6204 dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
6205 dpyinfo->image_cache = make_image_cache ();
6206 dpyinfo->height_in = dpyinfo->height / dpyinfo->resx;
6207 dpyinfo->width_in = dpyinfo->width / dpyinfo->resy;
6208 ReleaseDC (GetDesktopWindow (), hdc);
6210 /* initialise palette with white and black */
6212 XColor color;
6213 w32_defined_color (0, "white", &color, 1);
6214 w32_defined_color (0, "black", &color, 1);
6217 /* Create Fringe Bitmaps and store them for later use.
6219 On W32, bitmaps are all unsigned short, as Windows requires
6220 bitmap data to be Word aligned. For some reason they are
6221 horizontally reflected compared to how they appear on X, so we
6222 need to bitswap and convert to unsigned shorts before creating
6223 the bitmaps. */
6225 int i, j;
6227 for (i = NO_FRINGE_BITMAP + 1; i < MAX_FRINGE_BITMAPS; i++)
6229 int h = fringe_bitmaps[i].height;
6230 int wd = fringe_bitmaps[i].width;
6231 unsigned short *w32bits
6232 = (unsigned short *)alloca (h * sizeof (unsigned short));
6233 unsigned short *wb = w32bits;
6234 unsigned char *bits = fringe_bitmaps[i].bits;
6235 for (j = 0; j < h; j++)
6237 static unsigned char swap_nibble[16]
6238 = { 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */
6239 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */
6240 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */
6241 0x3, 0xb, 0x7, 0xf }; /* 0011 1011 0111 1111 */
6243 unsigned char b = *bits++;
6244 *wb++ = (unsigned short)((swap_nibble[b & 0xf]<<4)
6245 | (swap_nibble[(b>>4) & 0xf]));
6247 fringe_bmp[i] = CreateBitmap (wd, h, 1, 1, w32bits);
6251 #ifndef F_SETOWN_BUG
6252 #ifdef F_SETOWN
6253 #ifdef F_SETOWN_SOCK_NEG
6254 /* stdin is a socket here */
6255 fcntl (connection, F_SETOWN, -getpid ());
6256 #else /* ! defined (F_SETOWN_SOCK_NEG) */
6257 fcntl (connection, F_SETOWN, getpid ());
6258 #endif /* ! defined (F_SETOWN_SOCK_NEG) */
6259 #endif /* ! defined (F_SETOWN) */
6260 #endif /* F_SETOWN_BUG */
6262 #ifdef SIGIO
6263 if (interrupt_input)
6264 init_sigio (connection);
6265 #endif /* ! defined (SIGIO) */
6267 UNBLOCK_INPUT;
6269 return dpyinfo;
6272 /* Get rid of display DPYINFO, assuming all frames are already gone. */
6274 void
6275 x_delete_display (dpyinfo)
6276 struct w32_display_info *dpyinfo;
6278 /* Discard this display from w32_display_name_list and w32_display_list.
6279 We can't use Fdelq because that can quit. */
6280 if (! NILP (w32_display_name_list)
6281 && EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
6282 w32_display_name_list = XCDR (w32_display_name_list);
6283 else
6285 Lisp_Object tail;
6287 tail = w32_display_name_list;
6288 while (CONSP (tail) && CONSP (XCDR (tail)))
6290 if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element))
6292 XSETCDR (tail, XCDR (XCDR (tail)));
6293 break;
6295 tail = XCDR (tail);
6299 /* free palette table */
6301 struct w32_palette_entry * plist;
6303 plist = dpyinfo->color_list;
6304 while (plist)
6306 struct w32_palette_entry * pentry = plist;
6307 plist = plist->next;
6308 xfree (pentry);
6310 dpyinfo->color_list = NULL;
6311 if (dpyinfo->palette)
6312 DeleteObject(dpyinfo->palette);
6314 xfree (dpyinfo->font_table);
6315 xfree (dpyinfo->w32_id_name);
6317 /* Destroy row bitmaps. */
6319 int i;
6321 for (i = NO_FRINGE_BITMAP + 1; i < MAX_FRINGE_BITMAPS; i++)
6322 DeleteObject (fringe_bmp[i]);
6326 /* Set up use of W32. */
6328 DWORD w32_msg_worker ();
6330 void
6331 x_flush (struct frame * f)
6332 { /* Nothing to do */ }
6334 extern frame_parm_handler w32_frame_parm_handlers[];
6336 static struct redisplay_interface w32_redisplay_interface =
6338 w32_frame_parm_handlers,
6339 x_produce_glyphs,
6340 x_write_glyphs,
6341 x_insert_glyphs,
6342 x_clear_end_of_line,
6343 x_scroll_run,
6344 x_after_update_window_line,
6345 x_update_window_begin,
6346 x_update_window_end,
6347 x_cursor_to,
6348 x_flush,
6349 0, /* flush_display_optional */
6350 x_clear_window_mouse_face,
6351 w32_get_glyph_overhangs,
6352 x_fix_overlapping_area,
6353 w32_draw_fringe_bitmap,
6354 w32_per_char_metric,
6355 w32_encode_char,
6356 NULL, /* w32_compute_glyph_string_overhangs */
6357 x_draw_glyph_string,
6358 w32_define_frame_cursor,
6359 w32_clear_frame_area,
6360 w32_draw_window_cursor,
6361 w32_draw_vertical_window_border,
6362 w32_shift_glyphs_for_insert
6365 void
6366 w32_initialize ()
6368 rif = &w32_redisplay_interface;
6370 /* MSVC does not type K&R functions with no arguments correctly, and
6371 so we must explicitly cast them. */
6372 clear_frame_hook = (void (*)(void)) x_clear_frame;
6373 ring_bell_hook = (void (*)(void)) w32_ring_bell;
6374 update_begin_hook = x_update_begin;
6375 update_end_hook = x_update_end;
6377 read_socket_hook = w32_read_socket;
6379 frame_up_to_date_hook = w32_frame_up_to_date;
6381 mouse_position_hook = w32_mouse_position;
6382 frame_rehighlight_hook = w32_frame_rehighlight;
6383 frame_raise_lower_hook = w32_frame_raise_lower;
6384 set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
6385 condemn_scroll_bars_hook = w32_condemn_scroll_bars;
6386 redeem_scroll_bar_hook = w32_redeem_scroll_bar;
6387 judge_scroll_bars_hook = w32_judge_scroll_bars;
6389 scroll_region_ok = 1; /* we'll scroll partial frames */
6390 char_ins_del_ok = 1;
6391 line_ins_del_ok = 1; /* we'll just blt 'em */
6392 fast_clear_end_of_line = 1; /* X does this well */
6393 memory_below_frame = 0; /* we don't remember what scrolls
6394 off the bottom */
6395 baud_rate = 19200;
6397 w32_system_caret_hwnd = NULL;
6398 w32_system_caret_height = 0;
6399 w32_system_caret_x = 0;
6400 w32_system_caret_y = 0;
6402 last_tool_bar_item = -1;
6403 any_help_event_p = 0;
6405 /* Initialize input mode: interrupt_input off, no flow control, allow
6406 8 bit character input, standard quit char. */
6407 Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
6409 /* Create the window thread - it will terminate itself or when the app terminates */
6411 init_crit ();
6413 dwMainThreadId = GetCurrentThreadId ();
6414 DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
6415 GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
6417 /* Wait for thread to start */
6420 MSG msg;
6422 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
6424 hWindowsThread = CreateThread (NULL, 0,
6425 (LPTHREAD_START_ROUTINE) w32_msg_worker,
6426 0, 0, &dwWindowsThreadId);
6428 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6431 /* It is desirable that mainThread should have the same notion of
6432 focus window and active window as windowsThread. Unfortunately, the
6433 following call to AttachThreadInput, which should do precisely what
6434 we need, causes major problems when Emacs is linked as a console
6435 program. Unfortunately, we have good reasons for doing that, so
6436 instead we need to send messages to windowsThread to make some API
6437 calls for us (ones that affect, or depend on, the active/focus
6438 window state. */
6439 #ifdef ATTACH_THREADS
6440 AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
6441 #endif
6443 /* Dynamically link to optional system components. */
6445 HANDLE user_lib = LoadLibrary ("user32.dll");
6447 #define LOAD_PROC(fn) pfn##fn = (void *) GetProcAddress (user_lib, #fn)
6449 /* New proportional scroll bar functions. */
6450 LOAD_PROC (SetScrollInfo);
6451 LOAD_PROC (GetScrollInfo);
6453 #undef LOAD_PROC
6455 FreeLibrary (user_lib);
6457 /* If using proportional scroll bars, ensure handle is at least 5 pixels;
6458 otherwise use the fixed height. */
6459 vertical_scroll_bar_min_handle = (pfnSetScrollInfo != NULL) ? 5 :
6460 GetSystemMetrics (SM_CYVTHUMB);
6462 /* For either kind of scroll bar, take account of the arrows; these
6463 effectively form the border of the main scroll bar range. */
6464 vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
6465 = GetSystemMetrics (SM_CYVSCROLL);
6469 void
6470 syms_of_w32term ()
6472 staticpro (&w32_display_name_list);
6473 w32_display_name_list = Qnil;
6475 staticpro (&last_mouse_scroll_bar);
6476 last_mouse_scroll_bar = Qnil;
6478 staticpro (&Qvendor_specific_keysyms);
6479 Qvendor_specific_keysyms = intern ("vendor-specific-keysyms");
6481 DEFVAR_INT ("w32-num-mouse-buttons",
6482 &Vw32_num_mouse_buttons,
6483 doc: /* Number of physical mouse buttons. */);
6484 Vw32_num_mouse_buttons = Qnil;
6486 DEFVAR_LISP ("w32-swap-mouse-buttons",
6487 &Vw32_swap_mouse_buttons,
6488 doc: /* Swap the mapping of middle and right mouse buttons.
6489 When nil, middle button is mouse-2 and right button is mouse-3. */);
6490 Vw32_swap_mouse_buttons = Qnil;
6492 DEFVAR_LISP ("w32-grab-focus-on-raise",
6493 &Vw32_grab_focus_on_raise,
6494 doc: /* Raised frame grabs input focus.
6495 When t, `raise-frame' grabs input focus as well. This fits well
6496 with the normal Windows click-to-focus policy, but might not be
6497 desirable when using a point-to-focus policy. */);
6498 Vw32_grab_focus_on_raise = Qt;
6500 DEFVAR_LISP ("w32-capslock-is-shiftlock",
6501 &Vw32_capslock_is_shiftlock,
6502 doc: /* Apply CapsLock state to non character input keys.
6503 When nil, CapsLock only affects normal character input keys. */);
6504 Vw32_capslock_is_shiftlock = Qnil;
6506 DEFVAR_LISP ("w32-recognize-altgr",
6507 &Vw32_recognize_altgr,
6508 doc: /* Recognize right-alt and left-ctrl as AltGr.
6509 When nil, the right-alt and left-ctrl key combination is
6510 interpreted normally. */);
6511 Vw32_recognize_altgr = Qt;
6513 DEFVAR_BOOL ("w32-enable-unicode-output",
6514 &w32_enable_unicode_output,
6515 doc: /* Enable the use of Unicode for text output if non-nil.
6516 Unicode output may prevent some third party applications for displaying
6517 Far-East Languages on Windows 95/98 from working properly.
6518 NT uses Unicode internally anyway, so this flag will probably have no
6519 affect on NT machines. */);
6520 w32_enable_unicode_output = 1;
6522 DEFVAR_BOOL ("w32-use-visible-system-caret",
6523 &w32_use_visible_system_caret,
6524 doc: /* Flag to make the system caret visible.
6525 When this is non-nil, Emacs will indicate the position of point by
6526 using the system caret instead of drawing its own cursor. Some screen
6527 reader software does not track the system cursor properly when it is
6528 invisible, and gets confused by Emacs drawing its own cursor, so this
6529 variable is initialized to t when Emacs detects that screen reader
6530 software is running as it starts up.
6532 When this variable is set, other variables affecting the appearance of
6533 the cursor have no effect. */);
6535 /* Initialize w32_use_visible_system_caret based on whether a screen
6536 reader is in use. */
6537 if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
6538 &w32_use_visible_system_caret, 0))
6539 w32_use_visible_system_caret = 0;
6541 DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
6542 doc: /* If not nil, Emacs uses toolkit scroll bars. */);
6543 Vx_toolkit_scroll_bars = Qt;
6545 staticpro (&last_mouse_motion_frame);
6546 last_mouse_motion_frame = Qnil;
6549 /* arch-tag: 5fa70624-ab86-499c-8a85-473958ee4646
6550 (do not change this comment) */