Minor EBADF fixes.
[emacs.git] / src / w32term.c
blobc9951ca1d52a61b9b88ab6a7213acdd8d0facf1a
1 /* Implementation of GUI terminal on the Microsoft Windows API.
3 Copyright (C) 1989, 1993-2013 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 3 of the License, or
10 (at your option) 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. If not, see <http://www.gnu.org/licenses/>. */
20 #include <config.h>
21 #include <signal.h>
22 #include <stdio.h>
23 #include "lisp.h"
24 #include "blockinput.h"
25 #include "w32term.h"
27 #include "systty.h"
28 #include "systime.h"
30 #include <ctype.h>
31 #include <errno.h>
32 #include <sys/stat.h>
33 #include <imm.h>
35 #include "charset.h"
36 #include "character.h"
37 #include "coding.h"
38 #include "ccl.h"
39 #include "frame.h"
40 #include "dispextern.h"
41 #include "fontset.h"
42 #include "termhooks.h"
43 #include "termopts.h"
44 #include "termchar.h"
45 #include "disptab.h"
46 #include "buffer.h"
47 #include "window.h"
48 #include "keyboard.h"
49 #include "intervals.h"
50 #include "process.h"
51 #include "atimer.h"
52 #include "keymap.h"
54 #ifdef WINDOWSNT
55 #include "w32heap.h"
56 #endif
58 #ifndef WINDOWSNT
59 #include <io.h> /* for get_osfhandle */
60 #endif
62 #include <shellapi.h>
64 #include "font.h"
65 #include "w32font.h"
67 /* Fringe bitmaps. */
69 static int max_fringe_bmp = 0;
70 static HBITMAP *fringe_bmp = 0;
72 /* Temporary variables for w32_read_socket. */
74 static int last_mousemove_x = 0;
75 static int last_mousemove_y = 0;
77 /* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
78 #ifndef GET_WHEEL_DELTA_WPARAM
79 #define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
80 #endif
82 /* Non-zero means that a HELP_EVENT has been generated since Emacs
83 start. */
85 static int any_help_event_p;
87 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
88 static Lisp_Object last_window;
90 extern unsigned int msh_mousewheel;
92 extern void free_frame_menubar (struct frame *);
94 extern int w32_codepage_for_font (char *fontname);
95 extern Cursor w32_load_cursor (LPCTSTR name);
97 #define x_any_window_to_frame x_window_to_frame
98 #define x_top_window_to_frame x_window_to_frame
101 /* This is display since w32 does not support multiple ones. */
102 struct w32_display_info one_w32_display_info;
103 struct w32_display_info *x_display_list;
105 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
106 one for each element of w32_display_list and in the same order.
107 NAME is the name of the frame.
108 FONT-LIST-CACHE records previous values returned by x-list-fonts. */
109 Lisp_Object w32_display_name_list;
112 #if _WIN32_WINNT < 0x0500 && !defined(_W64)
113 /* Pre Windows 2000, this was not available, but define it here so
114 that Emacs compiled on such a platform will run on newer versions.
115 MinGW64 (_W64) defines these unconditionally, so avoid redefining. */
117 typedef struct tagWCRANGE
119 WCHAR wcLow;
120 USHORT cGlyphs;
121 } WCRANGE;
123 typedef struct tagGLYPHSET
125 DWORD cbThis;
126 DWORD flAccel;
127 DWORD cGlyphsSupported;
128 DWORD cRanges;
129 WCRANGE ranges[1];
130 } GLYPHSET;
132 #endif /* compiling for pre-Win2k */
134 /* Dynamic linking to SetLayeredWindowAttribute (only since 2000). */
135 BOOL (WINAPI *pfnSetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
137 #ifndef LWA_ALPHA
138 #define LWA_ALPHA 0x02
139 #endif
140 /* WS_EX_LAYERED is defined unconditionally by MingW, but only for W2K and
141 later targets by MSVC headers. */
142 #ifndef WS_EX_LAYERED
143 #define WS_EX_LAYERED 0x80000
144 #endif
146 /* SM_CXVIRTUALSCREEN and SM_CYVIRTUALSCREEN are not defined on 95 and
147 NT4. */
148 #ifndef SM_CXVIRTUALSCREEN
149 #define SM_CXVIRTUALSCREEN 78
150 #endif
151 #ifndef SM_CYVIRTUALSCREEN
152 #define SM_CYVIRTUALSCREEN 79
153 #endif
155 /* This is a frame waiting to be autoraised, within w32_read_socket. */
156 struct frame *pending_autoraise_frame;
158 /* The handle of the frame that currently owns the system caret. */
159 HWND w32_system_caret_hwnd;
160 int w32_system_caret_height;
161 int w32_system_caret_x;
162 int w32_system_caret_y;
163 struct window *w32_system_caret_window;
164 int w32_system_caret_hdr_height;
165 int w32_system_caret_mode_height;
166 DWORD dwWindowsThreadId = 0;
167 HANDLE hWindowsThread = NULL;
168 DWORD dwMainThreadId = 0;
169 HANDLE hMainThread = NULL;
171 int vertical_scroll_bar_min_handle;
172 int vertical_scroll_bar_top_border;
173 int vertical_scroll_bar_bottom_border;
175 int last_scroll_bar_drag_pos;
177 /* Keyboard code page - may be changed by language-change events. */
178 int w32_keyboard_codepage;
180 /* Mouse movement. */
182 /* Where the mouse was last time we reported a mouse event. */
183 static RECT last_mouse_glyph;
184 static FRAME_PTR last_mouse_glyph_frame;
186 /* The scroll bar in which the last motion event occurred.
188 If the last motion event occurred in a scroll bar, we set this
189 so w32_mouse_position can know whether to report a scroll bar motion or
190 an ordinary motion.
192 If the last motion event didn't occur in a scroll bar, we set this
193 to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
194 static Lisp_Object last_mouse_scroll_bar;
195 static int last_mouse_scroll_bar_pos;
197 /* This is a hack. We would really prefer that w32_mouse_position would
198 return the time associated with the position it returns, but there
199 doesn't seem to be any way to wrest the time-stamp from the server
200 along with the position query. So, we just keep track of the time
201 of the last movement we received, and return that in hopes that
202 it's somewhat accurate. */
203 static Time last_mouse_movement_time;
205 /* Incremented by w32_read_socket whenever it really tries to read
206 events. */
207 static int volatile input_signal_count;
209 #ifdef CYGWIN
210 int w32_message_fd = -1;
211 #endif /* CYGWIN */
213 static void x_update_window_end (struct window *, int, int);
214 static void w32_handle_tool_bar_click (struct frame *,
215 struct input_event *);
216 static void w32_define_cursor (Window, Cursor);
218 void x_lower_frame (struct frame *);
219 void x_scroll_bar_clear (struct frame *);
220 void x_wm_set_size_hint (struct frame *, long, bool);
221 void x_raise_frame (struct frame *);
222 void x_set_window_size (struct frame *, int, int, int);
223 void x_wm_set_window_state (struct frame *, int);
224 void x_wm_set_icon_pixmap (struct frame *, int);
225 static void w32_initialize (void);
226 static void x_update_end (struct frame *);
227 static void w32_frame_up_to_date (struct frame *);
228 static void w32_set_terminal_modes (struct terminal *);
229 static void w32_reset_terminal_modes (struct terminal *);
230 static void x_clear_frame (struct frame *);
231 static void frame_highlight (struct frame *);
232 static void frame_unhighlight (struct frame *);
233 static void x_new_focus_frame (struct w32_display_info *,
234 struct frame *);
235 static void x_focus_changed (int, int, struct w32_display_info *,
236 struct frame *, struct input_event *);
237 static void w32_detect_focus_change (struct w32_display_info *,
238 W32Msg *, struct input_event *);
239 static void w32_frame_rehighlight (struct frame *);
240 static void x_frame_rehighlight (struct w32_display_info *);
241 static void x_draw_hollow_cursor (struct window *, struct glyph_row *);
242 static void x_draw_bar_cursor (struct window *, struct glyph_row *, int,
243 enum text_cursor_kinds);
244 static void w32_clip_to_row (struct window *, struct glyph_row *, int, HDC);
245 static BOOL my_show_window (struct frame *, HWND, int);
246 static void my_set_window_pos (HWND, HWND, int, int, int, int, UINT);
247 #if 0
248 static void my_set_focus (struct frame *, HWND);
249 #endif
250 static void my_set_foreground_window (HWND);
251 static void my_destroy_window (struct frame *, HWND);
252 static void w32fullscreen_hook (FRAME_PTR);
254 #ifdef GLYPH_DEBUG
255 static void x_check_font (struct frame *, struct font *);
256 #endif
258 static Lisp_Object Qvendor_specific_keysyms;
259 static Lisp_Object Qadded, Qremoved, Qmodified;
260 static Lisp_Object Qrenamed_from, Qrenamed_to;
263 /***********************************************************************
264 Debugging
265 ***********************************************************************/
267 #if 0
269 /* This is a function useful for recording debugging information about
270 the sequence of occurrences in this file. */
272 struct record
274 char *locus;
275 int type;
278 struct record event_record[100];
280 int event_record_index;
282 record_event (char *locus, int type)
284 if (event_record_index == sizeof (event_record) / sizeof (struct record))
285 event_record_index = 0;
287 event_record[event_record_index].locus = locus;
288 event_record[event_record_index].type = type;
289 event_record_index++;
292 #endif /* 0 */
295 void
296 XChangeGC (void *ignore, XGCValues *gc, unsigned long mask,
297 XGCValues *xgcv)
299 if (mask & GCForeground)
300 gc->foreground = xgcv->foreground;
301 if (mask & GCBackground)
302 gc->background = xgcv->background;
303 if (mask & GCFont)
304 gc->font = xgcv->font;
307 XGCValues *
308 XCreateGC (void *ignore, Window window, unsigned long mask, XGCValues *xgcv)
310 XGCValues *gc = xzalloc (sizeof (XGCValues));
312 XChangeGC (ignore, gc, mask, xgcv);
314 return gc;
317 void
318 XGetGCValues (void *ignore, XGCValues *gc,
319 unsigned long mask, XGCValues *xgcv)
321 XChangeGC (ignore, xgcv, mask, gc);
324 static void
325 w32_set_clip_rectangle (HDC hdc, RECT *rect)
327 if (rect)
329 HRGN clip_region = CreateRectRgnIndirect (rect);
330 SelectClipRgn (hdc, clip_region);
331 DeleteObject (clip_region);
333 else
334 SelectClipRgn (hdc, NULL);
337 /* Restore clipping rectangle in S */
338 static void
339 w32_restore_glyph_string_clip (struct glyph_string *s)
341 RECT *r = s->clip;
342 int n = s->num_clips;
344 if (n == 1)
345 w32_set_clip_rectangle (s->hdc, r);
346 else if (n > 1)
348 HRGN clip1 = CreateRectRgnIndirect (r);
349 HRGN clip2 = CreateRectRgnIndirect (r + 1);
350 if (CombineRgn (clip1, clip1, clip2, RGN_OR) != ERROR)
351 SelectClipRgn (s->hdc, clip1);
352 DeleteObject (clip1);
353 DeleteObject (clip2);
358 Draw a wavy line under S. The wave fills wave_height pixels from y0.
360 x0 wave_length = 2
362 y0 * * * * *
363 |* * * * * * * * *
364 wave_height = 3 | * * * *
368 void
369 w32_draw_underwave (struct glyph_string *s, COLORREF color)
371 int wave_height = 3, wave_length = 2;
372 int dx, dy, x0, y0, width, x1, y1, x2, y2, odd, xmax;
373 XRectangle wave_clip, string_clip, final_clip;
374 RECT w32_final_clip, w32_string_clip;
375 HPEN hp, oldhp;
377 dx = wave_length;
378 dy = wave_height - 1;
379 x0 = s->x;
380 y0 = s->ybase - wave_height + 3;
381 width = s->width;
382 xmax = x0 + width;
384 /* Find and set clipping rectangle */
386 wave_clip.x = x0;
387 wave_clip.y = y0;
388 wave_clip.width = width;
389 wave_clip.height = wave_height;
391 get_glyph_string_clip_rect (s, &w32_string_clip);
392 CONVERT_TO_XRECT (string_clip, w32_string_clip);
394 if (!x_intersect_rectangles (&wave_clip, &string_clip, &final_clip))
395 return;
397 hp = CreatePen (PS_SOLID, 0, color);
398 oldhp = SelectObject (s->hdc, hp);
399 CONVERT_FROM_XRECT (final_clip, w32_final_clip);
400 w32_set_clip_rectangle (s->hdc, &w32_final_clip);
402 /* Draw the waves */
404 x1 = x0 - (x0 % dx);
405 x2 = x1 + dx;
406 odd = (x1/dx) % 2;
407 y1 = y2 = y0;
409 if (odd)
410 y1 += dy;
411 else
412 y2 += dy;
414 MoveToEx (s->hdc, x1, y1, NULL);
416 while (x1 <= xmax)
418 LineTo (s->hdc, x2, y2);
419 x1 = x2, y1 = y2;
420 x2 += dx, y2 = y0 + odd*dy;
421 odd = !odd;
424 /* Restore previous pen and clipping rectangle(s) */
425 w32_restore_glyph_string_clip (s);
426 SelectObject (s->hdc, oldhp);
427 DeleteObject (hp);
430 /* Draw a hollow rectangle at the specified position. */
431 void
432 w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
433 int width, int height)
435 HBRUSH hb, oldhb;
436 HPEN hp, oldhp;
438 hb = CreateSolidBrush (gc->background);
439 hp = CreatePen (PS_SOLID, 0, gc->foreground);
440 oldhb = SelectObject (hdc, hb);
441 oldhp = SelectObject (hdc, hp);
443 Rectangle (hdc, x, y, x + width, y + height);
445 SelectObject (hdc, oldhb);
446 SelectObject (hdc, oldhp);
447 DeleteObject (hb);
448 DeleteObject (hp);
451 /* Draw a filled rectangle at the specified position. */
452 void
453 w32_fill_rect (FRAME_PTR f, HDC hdc, COLORREF pix, RECT *lprect)
455 HBRUSH hb;
457 hb = CreateSolidBrush (pix);
458 FillRect (hdc, lprect, hb);
459 DeleteObject (hb);
462 void
463 w32_clear_window (FRAME_PTR f)
465 RECT rect;
466 HDC hdc = get_frame_dc (f);
468 /* Under certain conditions, this can be called at startup with
469 a console frame pointer before the GUI frame is created. An HDC
470 of 0 indicates this. */
471 if (hdc)
473 GetClientRect (FRAME_W32_WINDOW (f), &rect);
474 w32_clear_rect (f, hdc, &rect);
477 release_frame_dc (f, hdc);
480 #define OPAQUE_FRAME 255
482 void
483 x_set_frame_alpha (struct frame *f)
485 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
486 double alpha = 1.0;
487 double alpha_min = 1.0;
488 BYTE opac;
489 LONG ex_style;
490 HWND window = FRAME_W32_WINDOW (f);
492 /* Older versions of Windows do not support transparency. */
493 if (!pfnSetLayeredWindowAttributes)
494 return;
496 if (dpyinfo->x_highlight_frame == f)
497 alpha = f->alpha[0];
498 else
499 alpha = f->alpha[1];
501 if (FLOATP (Vframe_alpha_lower_limit))
502 alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
503 else if (INTEGERP (Vframe_alpha_lower_limit))
504 alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
506 if (alpha < 0.0)
507 return;
508 else if (alpha > 1.0)
509 alpha = 1.0;
510 else if (alpha < alpha_min && alpha_min <= 1.0)
511 alpha = alpha_min;
513 opac = alpha * OPAQUE_FRAME;
515 ex_style = GetWindowLong (window, GWL_EXSTYLE);
517 if (opac == OPAQUE_FRAME)
518 ex_style &= ~WS_EX_LAYERED;
519 else
520 ex_style |= WS_EX_LAYERED;
522 SetWindowLong (window, GWL_EXSTYLE, ex_style);
524 if (opac != OPAQUE_FRAME)
525 pfnSetLayeredWindowAttributes (window, 0, opac, LWA_ALPHA);
529 x_display_pixel_height (struct w32_display_info *dpyinfo)
531 int pixels = GetSystemMetrics (SM_CYVIRTUALSCREEN);
533 if (pixels == 0)
534 /* Fallback for Windows 95 or NT 4.0. */
535 pixels = GetSystemMetrics (SM_CYSCREEN);
537 return pixels;
541 x_display_pixel_width (struct w32_display_info *dpyinfo)
543 int pixels = GetSystemMetrics (SM_CXVIRTUALSCREEN);
545 if (pixels == 0)
546 /* Fallback for Windows 95 or NT 4.0. */
547 pixels = GetSystemMetrics (SM_CXSCREEN);
549 return pixels;
553 /***********************************************************************
554 Starting and ending an update
555 ***********************************************************************/
557 /* Start an update of frame F. This function is installed as a hook
558 for update_begin, i.e. it is called when update_begin is called.
559 This function is called prior to calls to x_update_window_begin for
560 each window being updated. */
562 static void
563 x_update_begin (struct frame *f)
565 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
567 if (! FRAME_W32_P (f))
568 return;
570 /* Regenerate display palette before drawing if list of requested
571 colors has changed. */
572 if (display_info->regen_palette)
574 w32_regenerate_palette (f);
575 display_info->regen_palette = FALSE;
580 /* Start update of window W. Set the global variable updated_window
581 to the window being updated and set output_cursor to the cursor
582 position of W. */
584 static void
585 x_update_window_begin (struct window *w)
587 struct frame *f = XFRAME (WINDOW_FRAME (w));
588 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
590 /* Hide the system caret during an update. */
591 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
593 SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
596 updated_window = w;
597 set_output_cursor (&w->cursor);
599 block_input ();
601 if (f == hlinfo->mouse_face_mouse_frame)
603 /* Don't do highlighting for mouse motion during the update. */
604 hlinfo->mouse_face_defer = 1;
606 /* If F needs to be redrawn, simply forget about any prior mouse
607 highlighting. */
608 if (FRAME_GARBAGED_P (f))
609 hlinfo->mouse_face_window = Qnil;
611 #if 0 /* Rows in a current matrix containing glyphs in mouse-face have
612 their mouse_face_p flag set, which means that they are always
613 unequal to rows in a desired matrix which never have that
614 flag set. So, rows containing mouse-face glyphs are never
615 scrolled, and we don't have to switch the mouse highlight off
616 here to prevent it from being scrolled. */
618 /* Can we tell that this update does not affect the window
619 where the mouse highlight is? If so, no need to turn off.
620 Likewise, don't do anything if the frame is garbaged;
621 in that case, the frame's current matrix that we would use
622 is all wrong, and we will redisplay that line anyway. */
623 if (!NILP (hlinfo->mouse_face_window)
624 && w == XWINDOW (hlinfo->mouse_face_window))
626 int i;
628 for (i = 0; i < w->desired_matrix->nrows; ++i)
629 if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
630 break;
632 if (i < w->desired_matrix->nrows)
633 clear_mouse_face (hlinfo);
635 #endif /* 0 */
638 unblock_input ();
641 /* Draw a vertical window border from (x,y0) to (x,y1) */
643 static void
644 w32_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
646 struct frame *f = XFRAME (WINDOW_FRAME (w));
647 RECT r;
648 HDC hdc;
649 struct face *face;
651 r.left = x;
652 r.right = x + 1;
653 r.top = y0;
654 r.bottom = y1;
656 hdc = get_frame_dc (f);
657 face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
658 if (face)
659 w32_fill_rect (f, hdc, face->foreground, &r);
660 else
661 w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
663 release_frame_dc (f, hdc);
667 /* End update of window W (which is equal to updated_window).
669 Draw vertical borders between horizontally adjacent windows, and
670 display W's cursor if CURSOR_ON_P is non-zero.
672 MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
673 glyphs in mouse-face were overwritten. In that case we have to
674 make sure that the mouse-highlight is properly redrawn.
676 W may be a menu bar pseudo-window in case we don't have X toolkit
677 support. Such windows don't have a cursor, so don't display it
678 here. */
680 static void
681 x_update_window_end (struct window *w, int cursor_on_p,
682 int mouse_face_overwritten_p)
684 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (XFRAME (w->frame));
686 if (!w->pseudo_window_p)
688 block_input ();
690 if (cursor_on_p)
691 display_and_set_cursor (w, 1, output_cursor.hpos,
692 output_cursor.vpos,
693 output_cursor.x, output_cursor.y);
695 if (draw_window_fringes (w, 1))
696 x_draw_vertical_border (w);
698 unblock_input ();
701 /* If a row with mouse-face was overwritten, arrange for
702 XTframe_up_to_date to redisplay the mouse highlight. */
703 if (mouse_face_overwritten_p)
705 hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
706 hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
707 hlinfo->mouse_face_window = Qnil;
710 /* Unhide the caret. This won't actually show the cursor, unless it
711 was visible before the corresponding call to HideCaret in
712 x_update_window_begin. */
713 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
715 SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
718 updated_window = NULL;
722 /* End update of frame F. This function is installed as a hook in
723 update_end. */
725 static void
726 x_update_end (struct frame *f)
728 if (! FRAME_W32_P (f))
729 return;
731 /* Mouse highlight may be displayed again. */
732 MOUSE_HL_INFO (f)->mouse_face_defer = 0;
736 /* This function is called from various places in xdisp.c whenever a
737 complete update has been performed. The global variable
738 updated_window is not available here. */
740 static void
741 w32_frame_up_to_date (struct frame *f)
743 if (FRAME_W32_P (f))
744 FRAME_MOUSE_UPDATE (f);
748 /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
749 arrow bitmaps, or clear the fringes if no bitmaps are required
750 before DESIRED_ROW is made current. The window being updated is
751 found in updated_window. This function is called from
752 update_window_line only if it is known that there are differences
753 between bitmaps to be drawn between current row and DESIRED_ROW. */
755 static void
756 x_after_update_window_line (struct glyph_row *desired_row)
758 struct window *w = updated_window;
759 struct frame *f;
760 int width, height;
762 eassert (w);
764 if (!desired_row->mode_line_p && !w->pseudo_window_p)
765 desired_row->redraw_fringe_bitmaps_p = 1;
767 /* When a window has disappeared, make sure that no rest of
768 full-width rows stays visible in the internal border. Could
769 check here if updated_window is the leftmost/rightmost window,
770 but I guess it's not worth doing since vertically split windows
771 are almost never used, internal border is rarely set, and the
772 overhead is very small. */
773 if (windows_or_buffers_changed
774 && desired_row->full_width_p
775 && (f = XFRAME (w->frame),
776 width = FRAME_INTERNAL_BORDER_WIDTH (f),
777 width != 0)
778 && (height = desired_row->visible_height,
779 height > 0))
781 int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
783 block_input ();
785 HDC hdc = get_frame_dc (f);
786 w32_clear_area (f, hdc, 0, y, width, height);
787 w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
788 y, width, height);
789 release_frame_dc (f, hdc);
791 unblock_input ();
796 /* Draw the bitmap WHICH in one of the left or right fringes of
797 window W. ROW is the glyph row for which to display the bitmap; it
798 determines the vertical position at which the bitmap has to be
799 drawn. */
801 static void
802 w32_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
803 struct draw_fringe_bitmap_params *p)
805 struct frame *f = XFRAME (WINDOW_FRAME (w));
806 HDC hdc;
807 struct face *face = p->face;
809 hdc = get_frame_dc (f);
811 if (!p->overlay_p)
813 int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;
815 /* If the fringe is adjacent to the left (right) scroll bar of a
816 leftmost (rightmost, respectively) window, then extend its
817 background to the gap between the fringe and the bar. */
818 if ((WINDOW_LEFTMOST_P (w)
819 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
820 || (WINDOW_RIGHTMOST_P (w)
821 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
823 int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
825 if (sb_width > 0)
827 int bar_area_x = WINDOW_SCROLL_BAR_AREA_X (w);
828 int bar_area_width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
829 * FRAME_COLUMN_WIDTH (f));
831 if (bx < 0)
833 /* Bitmap fills the fringe. */
834 if (bar_area_x + bar_area_width == p->x)
835 bx = bar_area_x + sb_width;
836 else if (p->x + p->wd == bar_area_x)
837 bx = bar_area_x;
838 if (bx >= 0)
840 int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w);
842 nx = bar_area_width - sb_width;
843 by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height,
844 row->y));
845 ny = row->visible_height;
848 else
850 if (bar_area_x + bar_area_width == bx)
852 bx = bar_area_x + sb_width;
853 nx += bar_area_width - sb_width;
855 else if (bx + nx == bar_area_x)
856 nx += bar_area_width - sb_width;
861 if (bx >= 0 && nx > 0)
862 w32_fill_area (f, hdc, face->background, bx, by, nx, ny);
865 /* Must clip because of partially visible lines. */
866 w32_clip_to_row (w, row, -1, hdc);
868 if (p->which && p->which < max_fringe_bmp)
870 HBITMAP pixmap = fringe_bmp[p->which];
871 HDC compat_hdc;
872 HANDLE horig_obj;
874 compat_hdc = CreateCompatibleDC (hdc);
876 SaveDC (hdc);
878 horig_obj = SelectObject (compat_hdc, pixmap);
880 /* Paint overlays transparently. */
881 if (p->overlay_p)
883 HBRUSH h_brush, h_orig_brush;
885 SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
886 SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
887 h_brush = CreateSolidBrush (face->foreground);
888 h_orig_brush = SelectObject (hdc, h_brush);
890 BitBlt (hdc, p->x, p->y, p->wd, p->h,
891 compat_hdc, 0, p->dh,
892 DSTINVERT);
893 BitBlt (hdc, p->x, p->y, p->wd, p->h,
894 compat_hdc, 0, p->dh,
895 0x2E064A);
896 BitBlt (hdc, p->x, p->y, p->wd, p->h,
897 compat_hdc, 0, p->dh,
898 DSTINVERT);
900 SelectObject (hdc, h_orig_brush);
901 DeleteObject (h_brush);
903 else
905 SetTextColor (hdc, face->background);
906 SetBkColor (hdc, (p->cursor_p
907 ? f->output_data.w32->cursor_pixel
908 : face->foreground));
910 BitBlt (hdc, p->x, p->y, p->wd, p->h,
911 compat_hdc, 0, p->dh,
912 SRCCOPY);
915 SelectObject (compat_hdc, horig_obj);
916 DeleteDC (compat_hdc);
917 RestoreDC (hdc, -1);
920 w32_set_clip_rectangle (hdc, NULL);
922 release_frame_dc (f, hdc);
925 static void
926 w32_define_fringe_bitmap (int which, unsigned short *bits, int h, int wd)
928 if (which >= max_fringe_bmp)
930 int i = max_fringe_bmp;
931 max_fringe_bmp = which + 20;
932 fringe_bmp = (HBITMAP *) xrealloc (fringe_bmp, max_fringe_bmp * sizeof (HBITMAP));
933 while (i < max_fringe_bmp)
934 fringe_bmp[i++] = 0;
937 fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
940 static void
941 w32_destroy_fringe_bitmap (int which)
943 if (which >= max_fringe_bmp)
944 return;
946 if (fringe_bmp[which])
947 DeleteObject (fringe_bmp[which]);
948 fringe_bmp[which] = 0;
953 /* This is called when starting Emacs and when restarting after
954 suspend. When starting Emacs, no window is mapped. And nothing
955 must be done to Emacs's own window if it is suspended (though that
956 rarely happens). */
958 static void
959 w32_set_terminal_modes (struct terminal *term)
963 /* This is called when exiting or suspending Emacs. Exiting will make
964 the W32 windows go away, and suspending requires no action. */
966 static void
967 w32_reset_terminal_modes (struct terminal *term)
973 /***********************************************************************
974 Display Iterator
975 ***********************************************************************/
977 /* Function prototypes of this page. */
979 static void x_set_glyph_string_clipping (struct glyph_string *);
980 static void x_set_glyph_string_gc (struct glyph_string *);
981 static void x_draw_glyph_string_background (struct glyph_string *,
982 int);
983 static void x_draw_glyph_string_foreground (struct glyph_string *);
984 static void x_draw_composite_glyph_string_foreground (struct glyph_string *);
985 static void x_draw_glyph_string_box (struct glyph_string *);
986 static void x_draw_glyph_string (struct glyph_string *);
987 static void x_set_cursor_gc (struct glyph_string *);
988 static void x_set_mode_line_face_gc (struct glyph_string *);
989 static void x_set_mouse_face_gc (struct glyph_string *);
990 static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
991 static void w32_setup_relief_color (struct frame *, struct relief *,
992 double, int, COLORREF);
993 static void x_setup_relief_colors (struct glyph_string *);
994 static void x_draw_image_glyph_string (struct glyph_string *);
995 static void x_draw_image_relief (struct glyph_string *);
996 static void x_draw_image_foreground (struct glyph_string *);
997 static void w32_draw_image_foreground_1 (struct glyph_string *, HBITMAP);
998 static void x_clear_glyph_string_rect (struct glyph_string *, int,
999 int, int, int);
1000 static void w32_draw_relief_rect (struct frame *, int, int, int, int,
1001 int, int, int, int, int, int,
1002 RECT *);
1003 static void w32_draw_box_rect (struct glyph_string *, int, int, int, int,
1004 int, int, int, RECT *);
1007 /* Set S->gc to a suitable GC for drawing glyph string S in cursor
1008 face. */
1010 static void
1011 x_set_cursor_gc (struct glyph_string *s)
1013 if (s->font == FRAME_FONT (s->f)
1014 && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
1015 && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
1016 && !s->cmp)
1017 s->gc = s->f->output_data.w32->cursor_gc;
1018 else
1020 /* Cursor on non-default face: must merge. */
1021 XGCValues xgcv;
1022 unsigned long mask;
1024 xgcv.background = s->f->output_data.w32->cursor_pixel;
1025 xgcv.foreground = s->face->background;
1027 /* If the glyph would be invisible, try a different foreground. */
1028 if (xgcv.foreground == xgcv.background)
1029 xgcv.foreground = s->face->foreground;
1030 if (xgcv.foreground == xgcv.background)
1031 xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
1032 if (xgcv.foreground == xgcv.background)
1033 xgcv.foreground = s->face->foreground;
1035 /* Make sure the cursor is distinct from text in this face. */
1036 if (xgcv.background == s->face->background
1037 && xgcv.foreground == s->face->foreground)
1039 xgcv.background = s->face->foreground;
1040 xgcv.foreground = s->face->background;
1043 IF_DEBUG (x_check_font (s->f, s->font));
1044 xgcv.font = s->font;
1045 mask = GCForeground | GCBackground | GCFont;
1047 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1048 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1049 mask, &xgcv);
1050 else
1051 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1052 = XCreateGC (NULL, s->window, mask, &xgcv);
1054 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1059 /* Set up S->gc of glyph string S for drawing text in mouse face. */
1061 static void
1062 x_set_mouse_face_gc (struct glyph_string *s)
1064 int face_id;
1065 struct face *face;
1067 /* What face has to be used last for the mouse face? */
1068 face_id = MOUSE_HL_INFO (s->f)->mouse_face_face_id;
1069 face = FACE_FROM_ID (s->f, face_id);
1070 if (face == NULL)
1071 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
1073 if (s->first_glyph->type == CHAR_GLYPH)
1074 face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch, -1, Qnil);
1075 else
1076 face_id = FACE_FOR_CHAR (s->f, face, 0, -1, Qnil);
1077 s->face = FACE_FROM_ID (s->f, face_id);
1078 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1080 /* If font in this face is same as S->font, use it. */
1081 if (s->font == s->face->font)
1082 s->gc = s->face->gc;
1083 else
1085 /* Otherwise construct scratch_cursor_gc with values from FACE
1086 but font FONT. */
1087 XGCValues xgcv;
1088 unsigned long mask;
1090 xgcv.background = s->face->background;
1091 xgcv.foreground = s->face->foreground;
1092 IF_DEBUG (x_check_font (s->f, s->font));
1093 xgcv.font = s->font;
1094 mask = GCForeground | GCBackground | GCFont;
1096 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1097 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1098 mask, &xgcv);
1099 else
1100 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1101 = XCreateGC (NULL, s->window, mask, &xgcv);
1103 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1106 eassert (s->gc != 0);
1110 /* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
1111 Faces to use in the mode line have already been computed when the
1112 matrix was built, so there isn't much to do, here. */
1114 static inline void
1115 x_set_mode_line_face_gc (struct glyph_string *s)
1117 s->gc = s->face->gc;
1121 /* Set S->gc of glyph string S for drawing that glyph string. Set
1122 S->stippled_p to a non-zero value if the face of S has a stipple
1123 pattern. */
1125 static inline void
1126 x_set_glyph_string_gc (struct glyph_string *s)
1128 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1130 if (s->hl == DRAW_NORMAL_TEXT)
1132 s->gc = s->face->gc;
1133 s->stippled_p = s->face->stipple != 0;
1135 else if (s->hl == DRAW_INVERSE_VIDEO)
1137 x_set_mode_line_face_gc (s);
1138 s->stippled_p = s->face->stipple != 0;
1140 else if (s->hl == DRAW_CURSOR)
1142 x_set_cursor_gc (s);
1143 s->stippled_p = 0;
1145 else if (s->hl == DRAW_MOUSE_FACE)
1147 x_set_mouse_face_gc (s);
1148 s->stippled_p = s->face->stipple != 0;
1150 else if (s->hl == DRAW_IMAGE_RAISED
1151 || s->hl == DRAW_IMAGE_SUNKEN)
1153 s->gc = s->face->gc;
1154 s->stippled_p = s->face->stipple != 0;
1156 else
1158 s->gc = s->face->gc;
1159 s->stippled_p = s->face->stipple != 0;
1162 /* GC must have been set. */
1163 eassert (s->gc != 0);
1167 /* Set clipping for output of glyph string S. S may be part of a mode
1168 line or menu if we don't have X toolkit support. */
1170 static inline void
1171 x_set_glyph_string_clipping (struct glyph_string *s)
1173 RECT *r = s->clip;
1174 int n = get_glyph_string_clip_rects (s, r, 2);
1176 if (n == 1)
1177 w32_set_clip_rectangle (s->hdc, r);
1178 else if (n > 1)
1180 HRGN clip1 = CreateRectRgnIndirect (r);
1181 HRGN clip2 = CreateRectRgnIndirect (r + 1);
1182 if (CombineRgn (clip1, clip1, clip2, RGN_OR) != ERROR)
1183 SelectClipRgn (s->hdc, clip1);
1184 DeleteObject (clip1);
1185 DeleteObject (clip2);
1187 s->num_clips = n;
1190 /* Set SRC's clipping for output of glyph string DST. This is called
1191 when we are drawing DST's left_overhang or right_overhang only in
1192 the area of SRC. */
1194 static void
1195 x_set_glyph_string_clipping_exactly (struct glyph_string *src,
1196 struct glyph_string *dst)
1198 RECT r;
1200 r.left = src->x;
1201 r.right = r.left + src->width;
1202 r.top = src->y;
1203 r.bottom = r.top + src->height;
1204 dst->clip[0] = r;
1205 dst->num_clips = 1;
1206 w32_set_clip_rectangle (dst->hdc, &r);
1209 /* RIF:
1210 Compute left and right overhang of glyph string S. */
1212 static void
1213 w32_compute_glyph_string_overhangs (struct glyph_string *s)
1215 if (s->cmp == NULL
1216 && s->first_glyph->type == CHAR_GLYPH
1217 && !s->font_not_found_p)
1219 unsigned *code = alloca (sizeof (unsigned) * s->nchars);
1220 struct font *font = s->font;
1221 struct font_metrics metrics;
1222 int i;
1224 for (i = 0; i < s->nchars; i++)
1225 code[i] = s->char2b[i];
1226 font->driver->text_extents (font, code, s->nchars, &metrics);
1227 s->right_overhang = (metrics.rbearing > metrics.width
1228 ? metrics.rbearing - metrics.width : 0);
1229 s->left_overhang = metrics.lbearing < 0 ? -metrics.lbearing : 0;
1231 else if (s->cmp)
1233 s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
1234 s->left_overhang = -s->cmp->lbearing;
1238 /* Fill rectangle X, Y, W, H with background color of glyph string S. */
1240 static inline void
1241 x_clear_glyph_string_rect (struct glyph_string *s,
1242 int x, int y, int w, int h)
1244 int real_x = x;
1245 int real_y = y;
1246 int real_w = w;
1247 int real_h = h;
1248 #if 0
1249 /* Take clipping into account. */
1250 if (s->gc->clip_mask == Rect)
1252 real_x = max (real_x, s->gc->clip_rectangle.left);
1253 real_y = max (real_y, s->gc->clip_rectangle.top);
1254 real_w = min (real_w, s->gc->clip_rectangle.right
1255 - s->gc->clip_rectangle.left);
1256 real_h = min (real_h, s->gc->clip_rectangle.bottom
1257 - s->gc->clip_rectangle.top);
1259 #endif
1260 w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
1261 real_w, real_h);
1265 /* Draw the background of glyph_string S. If S->background_filled_p
1266 is non-zero don't draw it. FORCE_P non-zero means draw the
1267 background even if it wouldn't be drawn normally. This is used
1268 when a string preceding S draws into the background of S, or S
1269 contains the first component of a composition. */
1271 static void
1272 x_draw_glyph_string_background (struct glyph_string *s, int force_p)
1274 /* Nothing to do if background has already been drawn or if it
1275 shouldn't be drawn in the first place. */
1276 if (!s->background_filled_p)
1278 int box_line_width = max (s->face->box_line_width, 0);
1280 #if 0 /* TODO: stipple */
1281 if (s->stippled_p)
1283 /* Fill background with a stipple pattern. */
1284 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
1285 XFillRectangle (s->display, s->window, s->gc, s->x,
1286 s->y + box_line_width,
1287 s->background_width,
1288 s->height - 2 * box_line_width);
1289 XSetFillStyle (s->display, s->gc, FillSolid);
1290 s->background_filled_p = 1;
1292 else
1293 #endif
1294 if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1295 || s->font_not_found_p
1296 || s->extends_to_end_of_line_p
1297 || force_p)
1299 x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1300 s->background_width,
1301 s->height - 2 * box_line_width);
1302 s->background_filled_p = 1;
1308 /* Draw the foreground of glyph string S. */
1310 static void
1311 x_draw_glyph_string_foreground (struct glyph_string *s)
1313 int i, x;
1315 /* If first glyph of S has a left box line, start drawing the text
1316 of S to the right of that box line. */
1317 if (s->face->box != FACE_NO_BOX
1318 && s->first_glyph->left_box_line_p)
1319 x = s->x + eabs (s->face->box_line_width);
1320 else
1321 x = s->x;
1323 SetTextColor (s->hdc, s->gc->foreground);
1324 SetBkColor (s->hdc, s->gc->background);
1325 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1327 /* Draw characters of S as rectangles if S's font could not be
1328 loaded. */
1329 if (s->font_not_found_p)
1331 for (i = 0; i < s->nchars; ++i)
1333 struct glyph *g = s->first_glyph + i;
1335 w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
1336 s->height - 1);
1337 x += g->pixel_width;
1340 else
1342 struct font *font = s->font;
1343 int boff = font->baseline_offset;
1344 int y;
1345 HFONT old_font;
1347 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1349 if (font->vertical_centering)
1350 boff = VCENTER_BASELINE_OFFSET (font, s->f) - boff;
1352 y = s->ybase - boff;
1353 if (s->for_overlaps
1354 || (s->background_filled_p && s->hl != DRAW_CURSOR))
1355 font->driver->draw (s, 0, s->nchars, x, y, 0);
1356 else
1357 font->driver->draw (s, 0, s->nchars, x, y, 1);
1358 if (s->face->overstrike)
1359 font->driver->draw (s, 0, s->nchars, x + 1, y, 0);
1361 SelectObject (s->hdc, old_font);
1365 /* Draw the foreground of composite glyph string S. */
1367 static void
1368 x_draw_composite_glyph_string_foreground (struct glyph_string *s)
1370 int i, j, x;
1371 struct font *font = s->font;
1373 /* If first glyph of S has a left box line, start drawing the text
1374 of S to the right of that box line. */
1375 if (s->face && s->face->box != FACE_NO_BOX
1376 && s->first_glyph->left_box_line_p)
1377 x = s->x + eabs (s->face->box_line_width);
1378 else
1379 x = s->x;
1381 /* S is a glyph string for a composition. S->cmp_from is the index
1382 of the first character drawn for glyphs of this composition.
1383 S->cmp_from == 0 means we are drawing the very first character of
1384 this composition. */
1386 SetTextColor (s->hdc, s->gc->foreground);
1387 SetBkColor (s->hdc, s->gc->background);
1388 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1390 /* Draw a rectangle for the composition if the font for the very
1391 first character of the composition could not be loaded. */
1392 if (s->font_not_found_p)
1394 if (s->cmp_from == 0)
1395 w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
1396 s->height - 1);
1398 else if (! s->first_glyph->u.cmp.automatic)
1400 int y = s->ybase;
1401 HFONT old_font;
1403 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1405 for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
1406 /* TAB in a composition means display glyphs with padding
1407 space on the left or right. */
1408 if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
1410 int xx = x + s->cmp->offsets[j * 2];
1411 int yy = y - s->cmp->offsets[j * 2 + 1];
1413 font->driver->draw (s, j, j + 1, xx, yy, 0);
1414 if (s->face->overstrike)
1415 font->driver->draw (s, j, j + 1, xx + 1, yy, 0);
1417 SelectObject (s->hdc, old_font);
1419 else
1421 Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
1422 Lisp_Object glyph;
1423 int y = s->ybase;
1424 int width = 0;
1425 HFONT old_font;
1427 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1429 for (i = j = s->cmp_from; i < s->cmp_to; i++)
1431 glyph = LGSTRING_GLYPH (gstring, i);
1432 if (NILP (LGLYPH_ADJUSTMENT (glyph)))
1433 width += LGLYPH_WIDTH (glyph);
1434 else
1436 int xoff, yoff, wadjust;
1438 if (j < i)
1440 font->driver->draw (s, j, i, x, y, 0);
1441 x += width;
1443 xoff = LGLYPH_XOFF (glyph);
1444 yoff = LGLYPH_YOFF (glyph);
1445 wadjust = LGLYPH_WADJUST (glyph);
1446 font->driver->draw (s, i, i + 1, x + xoff, y + yoff, 0);
1447 x += wadjust;
1448 j = i + 1;
1449 width = 0;
1452 if (j < i)
1453 font->driver->draw (s, j, i, x, y, 0);
1455 SelectObject (s->hdc, old_font);
1460 /* Draw the foreground of glyph string S for glyphless characters. */
1462 static void
1463 x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
1465 struct glyph *glyph = s->first_glyph;
1466 XChar2b char2b[8];
1467 int x, i, j;
1468 int with_background;
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 + eabs (s->face->box_line_width);
1475 else
1476 x = s->x;
1478 SetTextColor (s->hdc, s->gc->foreground);
1479 SetBkColor (s->hdc, s->gc->background);
1480 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1482 s->char2b = char2b;
1483 with_background = ! (s->for_overlaps
1484 || (s->background_filled_p && s->hl != DRAW_CURSOR));
1485 for (i = 0; i < s->nchars; i++, glyph++)
1487 char buf[7], *str = NULL;
1488 int len = glyph->u.glyphless.len;
1490 if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_ACRONYM)
1492 if (len > 1
1493 && CHAR_TABLE_P (Vglyphless_char_display)
1494 && (CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (Vglyphless_char_display))
1495 >= 1))
1497 Lisp_Object acronym
1498 = (! glyph->u.glyphless.for_no_font
1499 ? CHAR_TABLE_REF (Vglyphless_char_display,
1500 glyph->u.glyphless.ch)
1501 : XCHAR_TABLE (Vglyphless_char_display)->extras[0]);
1502 if (STRINGP (acronym))
1503 str = SSDATA (acronym);
1506 else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
1508 sprintf ((char *) buf, "%0*X",
1509 glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
1510 glyph->u.glyphless.ch);
1511 str = buf;
1514 if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
1515 w32_draw_rectangle (s->hdc, s->gc,
1516 x, s->ybase - glyph->ascent,
1517 glyph->pixel_width - 1,
1518 glyph->ascent + glyph->descent - 1);
1519 if (str)
1521 struct font *font = s->font;
1522 int upper_len = (len + 1) / 2;
1523 unsigned code;
1524 HFONT old_font;
1526 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1527 /* It is certain that all LEN characters in STR are ASCII. */
1528 for (j = 0; j < len; j++)
1530 code = font->driver->encode_char (font, str[j]);
1531 STORE_XCHAR2B (char2b + j, code >> 8, code & 0xFF);
1533 font->driver->draw (s, 0, upper_len,
1534 x + glyph->slice.glyphless.upper_xoff,
1535 s->ybase + glyph->slice.glyphless.upper_yoff,
1536 with_background);
1537 font->driver->draw (s, upper_len, len,
1538 x + glyph->slice.glyphless.lower_xoff,
1539 s->ybase + glyph->slice.glyphless.lower_yoff,
1540 with_background);
1541 SelectObject (s->hdc, old_font);
1543 x += glyph->pixel_width;
1548 /* Brightness beyond which a color won't have its highlight brightness
1549 boosted.
1551 Nominally, highlight colors for `3d' faces are calculated by
1552 brightening an object's color by a constant scale factor, but this
1553 doesn't yield good results for dark colors, so for colors whose
1554 brightness is less than this value (on a scale of 0-255) have to
1555 use an additional additive factor.
1557 The value here is set so that the default menu-bar/mode-line color
1558 (grey75) will not have its highlights changed at all. */
1559 #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 187
1562 /* Allocate a color which is lighter or darker than *COLOR by FACTOR
1563 or DELTA. Try a color with RGB values multiplied by FACTOR first.
1564 If this produces the same color as COLOR, try a color where all RGB
1565 values have DELTA added. Return the allocated color in *COLOR.
1566 DISPLAY is the X display, CMAP is the colormap to operate on.
1567 Value is non-zero if successful. */
1569 static int
1570 w32_alloc_lighter_color (struct frame *f, COLORREF *color,
1571 double factor, int delta)
1573 COLORREF new;
1574 long bright;
1576 /* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
1577 delta /= 256;
1579 /* Change RGB values by specified FACTOR. Avoid overflow! */
1580 eassert (factor >= 0);
1581 new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
1582 min (0xff, factor * GetGValue (*color)),
1583 min (0xff, factor * GetBValue (*color)));
1585 /* Calculate brightness of COLOR. */
1586 bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
1587 + GetBValue (*color)) / 6;
1589 /* We only boost colors that are darker than
1590 HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
1591 if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
1592 /* Make an additive adjustment to NEW, because it's dark enough so
1593 that scaling by FACTOR alone isn't enough. */
1595 /* How far below the limit this color is (0 - 1, 1 being darker). */
1596 double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
1597 /* The additive adjustment. */
1598 int min_delta = delta * dimness * factor / 2;
1600 if (factor < 1)
1601 new = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
1602 max (0, min (0xff, min_delta - GetGValue (*color))),
1603 max (0, min (0xff, min_delta - GetBValue (*color))));
1604 else
1605 new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
1606 max (0, min (0xff, min_delta + GetGValue (*color))),
1607 max (0, min (0xff, min_delta + GetBValue (*color))));
1610 if (new == *color)
1611 new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
1612 max (0, min (0xff, delta + GetGValue (*color))),
1613 max (0, min (0xff, delta + GetBValue (*color))));
1615 /* TODO: Map to palette and retry with delta if same? */
1616 /* TODO: Free colors (if using palette)? */
1618 if (new == *color)
1619 return 0;
1621 *color = new;
1623 return 1;
1626 /* On frame F, translate pixel colors to RGB values for the NCOLORS
1627 colors in COLORS. On W32, we no longer try to map colors to
1628 a palette. */
1629 void
1630 x_query_colors (struct frame *f, XColor *colors, int ncolors)
1632 int i;
1634 for (i = 0; i < ncolors; i++)
1636 DWORD pixel = colors[i].pixel;
1637 /* Convert to a 16 bit value in range 0 - 0xffff. */
1638 colors[i].red = GetRValue (pixel) * 257;
1639 colors[i].green = GetGValue (pixel) * 257;
1640 colors[i].blue = GetBValue (pixel) * 257;
1644 void
1645 x_query_color (struct frame *f, XColor *color)
1647 x_query_colors (f, color, 1);
1651 /* Set up the foreground color for drawing relief lines of glyph
1652 string S. RELIEF is a pointer to a struct relief containing the GC
1653 with which lines will be drawn. Use a color that is FACTOR or
1654 DELTA lighter or darker than the relief's background which is found
1655 in S->f->output_data.x->relief_background. If such a color cannot
1656 be allocated, use DEFAULT_PIXEL, instead. */
1658 static void
1659 w32_setup_relief_color (struct frame *f, struct relief *relief, double factor,
1660 int delta, COLORREF default_pixel)
1662 XGCValues xgcv;
1663 struct w32_output *di = f->output_data.w32;
1664 unsigned long mask = GCForeground;
1665 COLORREF pixel;
1666 COLORREF background = di->relief_background;
1667 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
1669 /* TODO: Free colors (if using palette)? */
1671 /* Allocate new color. */
1672 xgcv.foreground = default_pixel;
1673 pixel = background;
1674 if (w32_alloc_lighter_color (f, &pixel, factor, delta))
1676 relief->allocated_p = 1;
1677 xgcv.foreground = relief->pixel = pixel;
1680 if (relief->gc == 0)
1682 #if 0 /* TODO: stipple */
1683 xgcv.stipple = dpyinfo->gray;
1684 mask |= GCStipple;
1685 #endif
1686 relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
1688 else
1689 XChangeGC (NULL, relief->gc, mask, &xgcv);
1693 /* Set up colors for the relief lines around glyph string S. */
1695 static void
1696 x_setup_relief_colors (struct glyph_string *s)
1698 struct w32_output *di = s->f->output_data.w32;
1699 COLORREF color;
1701 if (s->face->use_box_color_for_shadows_p)
1702 color = s->face->box_color;
1703 else if (s->first_glyph->type == IMAGE_GLYPH
1704 && s->img->pixmap
1705 && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
1706 color = IMAGE_BACKGROUND (s->img, s->f, 0);
1707 else
1708 color = s->gc->background;
1710 if (di->white_relief.gc == 0
1711 || color != di->relief_background)
1713 di->relief_background = color;
1714 w32_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
1715 WHITE_PIX_DEFAULT (s->f));
1716 w32_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
1717 BLACK_PIX_DEFAULT (s->f));
1722 /* Draw a relief on frame F inside the rectangle given by LEFT_X,
1723 TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief
1724 to draw, it must be >= 0. RAISED_P non-zero means draw a raised
1725 relief. LEFT_P non-zero means draw a relief on the left side of
1726 the rectangle. RIGHT_P non-zero means draw a relief on the right
1727 side of the rectangle. CLIP_RECT is the clipping rectangle to use
1728 when drawing. */
1730 static void
1731 w32_draw_relief_rect (struct frame *f,
1732 int left_x, int top_y, int right_x, int bottom_y,
1733 int width, int raised_p,
1734 int top_p, int bot_p, int left_p, int right_p,
1735 RECT *clip_rect)
1737 int i;
1738 XGCValues gc;
1739 HDC hdc = get_frame_dc (f);
1741 if (raised_p)
1742 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1743 else
1744 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1746 w32_set_clip_rectangle (hdc, clip_rect);
1748 /* Top. */
1749 if (top_p)
1750 for (i = 0; i < width; ++i)
1751 w32_fill_area (f, hdc, gc.foreground,
1752 left_x + i * left_p, top_y + i,
1753 right_x - left_x - i * (left_p + right_p ) + 1, 1);
1755 /* Left. */
1756 if (left_p)
1757 for (i = 0; i < width; ++i)
1758 w32_fill_area (f, hdc, gc.foreground,
1759 left_x + i, top_y + (i + 1) * top_p, 1,
1760 bottom_y - top_y - (i + 1) * (bot_p + top_p) + 1);
1762 if (raised_p)
1763 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1764 else
1765 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1767 /* Bottom. */
1768 if (bot_p)
1769 for (i = 0; i < width; ++i)
1770 w32_fill_area (f, hdc, gc.foreground,
1771 left_x + i * left_p, bottom_y - i,
1772 right_x - left_x - i * (left_p + right_p) + 1, 1);
1774 /* Right. */
1775 if (right_p)
1776 for (i = 0; i < width; ++i)
1777 w32_fill_area (f, hdc, gc.foreground,
1778 right_x - i, top_y + (i + 1) * top_p, 1,
1779 bottom_y - top_y - (i + 1) * (bot_p + top_p) + 1);
1781 w32_set_clip_rectangle (hdc, NULL);
1783 release_frame_dc (f, hdc);
1787 /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
1788 RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
1789 draw, it must be >= 0. LEFT_P non-zero means draw a line on the
1790 left side of the rectangle. RIGHT_P non-zero means draw a line
1791 on the right side of the rectangle. CLIP_RECT is the clipping
1792 rectangle to use when drawing. */
1794 static void
1795 w32_draw_box_rect (struct glyph_string *s,
1796 int left_x, int top_y, int right_x, int bottom_y, int width,
1797 int left_p, int right_p, RECT *clip_rect)
1799 w32_set_clip_rectangle (s->hdc, clip_rect);
1801 /* Top. */
1802 w32_fill_area (s->f, s->hdc, s->face->box_color,
1803 left_x, top_y, right_x - left_x + 1, width);
1805 /* Left. */
1806 if (left_p)
1808 w32_fill_area (s->f, s->hdc, s->face->box_color,
1809 left_x, top_y, width, bottom_y - top_y + 1);
1812 /* Bottom. */
1813 w32_fill_area (s->f, s->hdc, s->face->box_color,
1814 left_x, bottom_y - width + 1, right_x - left_x + 1, width);
1816 /* Right. */
1817 if (right_p)
1819 w32_fill_area (s->f, s->hdc, s->face->box_color,
1820 right_x - width + 1, top_y, width, bottom_y - top_y + 1);
1823 w32_set_clip_rectangle (s->hdc, NULL);
1827 /* Draw a box around glyph string S. */
1829 static void
1830 x_draw_glyph_string_box (struct glyph_string *s)
1832 int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
1833 int left_p, right_p;
1834 struct glyph *last_glyph;
1835 RECT clip_rect;
1837 last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
1838 ? WINDOW_RIGHT_EDGE_X (s->w)
1839 : window_box_right (s->w, s->area));
1841 /* The glyph that may have a right box line. */
1842 last_glyph = (s->cmp || s->img
1843 ? s->first_glyph
1844 : s->first_glyph + s->nchars - 1);
1846 width = eabs (s->face->box_line_width);
1847 raised_p = s->face->box == FACE_RAISED_BOX;
1848 left_x = s->x;
1849 right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
1850 ? last_x - 1
1851 : min (last_x, s->x + s->background_width) - 1));
1852 top_y = s->y;
1853 bottom_y = top_y + s->height - 1;
1855 left_p = (s->first_glyph->left_box_line_p
1856 || (s->hl == DRAW_MOUSE_FACE
1857 && (s->prev == NULL
1858 || s->prev->hl != s->hl)));
1859 right_p = (last_glyph->right_box_line_p
1860 || (s->hl == DRAW_MOUSE_FACE
1861 && (s->next == NULL
1862 || s->next->hl != s->hl)));
1864 get_glyph_string_clip_rect (s, &clip_rect);
1866 if (s->face->box == FACE_SIMPLE_BOX)
1867 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1868 left_p, right_p, &clip_rect);
1869 else
1871 x_setup_relief_colors (s);
1872 w32_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
1873 width, raised_p, 1, 1, left_p, right_p, &clip_rect);
1878 /* Draw foreground of image glyph string S. */
1880 static void
1881 x_draw_image_foreground (struct glyph_string *s)
1883 int x = s->x;
1884 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1886 /* If first glyph of S has a left box line, start drawing it to the
1887 right of that line. */
1888 if (s->face->box != FACE_NO_BOX
1889 && s->first_glyph->left_box_line_p
1890 && s->slice.x == 0)
1891 x += eabs (s->face->box_line_width);
1893 /* If there is a margin around the image, adjust x- and y-position
1894 by that margin. */
1895 if (s->slice.x == 0)
1896 x += s->img->hmargin;
1897 if (s->slice.y == 0)
1898 y += s->img->vmargin;
1900 SaveDC (s->hdc);
1902 if (s->img->pixmap)
1904 HDC compat_hdc = CreateCompatibleDC (s->hdc);
1905 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1906 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
1907 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1908 SetBkColor (compat_hdc, RGB (255, 255, 255));
1909 SetTextColor (s->hdc, RGB (0, 0, 0));
1910 x_set_glyph_string_clipping (s);
1912 if (s->img->mask)
1914 HDC mask_dc = CreateCompatibleDC (s->hdc);
1915 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1917 SetTextColor (s->hdc, RGB (255, 255, 255));
1918 SetBkColor (s->hdc, RGB (0, 0, 0));
1920 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1921 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1922 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1923 mask_dc, s->slice.x, s->slice.y, SRCAND);
1924 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1925 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1927 SelectObject (mask_dc, mask_orig_obj);
1928 DeleteDC (mask_dc);
1930 else
1932 SetTextColor (s->hdc, s->gc->foreground);
1933 SetBkColor (s->hdc, s->gc->background);
1935 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1936 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
1938 /* When the image has a mask, we can expect that at
1939 least part of a mouse highlight or a block cursor will
1940 be visible. If the image doesn't have a mask, make
1941 a block cursor visible by drawing a rectangle around
1942 the image. I believe it's looking better if we do
1943 nothing here for mouse-face. */
1944 if (s->hl == DRAW_CURSOR)
1946 int r = s->img->relief;
1947 if (r < 0) r = -r;
1948 w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
1949 s->slice.width + r*2 - 1,
1950 s->slice.height + r*2 - 1);
1954 w32_set_clip_rectangle (s->hdc, NULL);
1955 SelectObject (s->hdc, orig_brush);
1956 DeleteObject (fg_brush);
1957 SelectObject (compat_hdc, orig_obj);
1958 DeleteDC (compat_hdc);
1960 else
1961 w32_draw_rectangle (s->hdc, s->gc, x, y,
1962 s->slice.width - 1, s->slice.height - 1);
1964 RestoreDC (s->hdc ,-1);
1968 /* Draw a relief around the image glyph string S. */
1970 static void
1971 x_draw_image_relief (struct glyph_string *s)
1973 int x1, y1, thick, raised_p, top_p, bot_p, left_p, right_p;
1974 RECT r;
1975 int x = s->x;
1976 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1978 /* If first glyph of S has a left box line, start drawing it to the
1979 right of that line. */
1980 if (s->face->box != FACE_NO_BOX
1981 && s->first_glyph->left_box_line_p
1982 && s->slice.x == 0)
1983 x += eabs (s->face->box_line_width);
1985 /* If there is a margin around the image, adjust x- and y-position
1986 by that margin. */
1987 if (s->slice.x == 0)
1988 x += s->img->hmargin;
1989 if (s->slice.y == 0)
1990 y += s->img->vmargin;
1992 if (s->hl == DRAW_IMAGE_SUNKEN
1993 || s->hl == DRAW_IMAGE_RAISED)
1995 thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief
1996 : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
1997 raised_p = s->hl == DRAW_IMAGE_RAISED;
1999 else
2001 thick = eabs (s->img->relief);
2002 raised_p = s->img->relief > 0;
2005 x1 = x + s->slice.width - 1;
2006 y1 = y + s->slice.height - 1;
2007 top_p = bot_p = left_p = right_p = 0;
2009 if (s->slice.x == 0)
2010 x -= thick, left_p = 1;
2011 if (s->slice.y == 0)
2012 y -= thick, top_p = 1;
2013 if (s->slice.x + s->slice.width == s->img->width)
2014 x1 += thick, right_p = 1;
2015 if (s->slice.y + s->slice.height == s->img->height)
2016 y1 += thick, bot_p = 1;
2018 x_setup_relief_colors (s);
2019 get_glyph_string_clip_rect (s, &r);
2020 w32_draw_relief_rect (s->f, x, y, x1, y1, thick, raised_p,
2021 top_p, bot_p, left_p, right_p, &r);
2025 /* Draw the foreground of image glyph string S to PIXMAP. */
2027 static void
2028 w32_draw_image_foreground_1 (struct glyph_string *s, HBITMAP pixmap)
2030 HDC hdc = CreateCompatibleDC (s->hdc);
2031 HGDIOBJ orig_hdc_obj = SelectObject (hdc, pixmap);
2032 int x = 0;
2033 int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice);
2035 /* If first glyph of S has a left box line, start drawing it to the
2036 right of that line. */
2037 if (s->face->box != FACE_NO_BOX
2038 && s->first_glyph->left_box_line_p
2039 && s->slice.x == 0)
2040 x += eabs (s->face->box_line_width);
2042 /* If there is a margin around the image, adjust x- and y-position
2043 by that margin. */
2044 if (s->slice.x == 0)
2045 x += s->img->hmargin;
2046 if (s->slice.y == 0)
2047 y += s->img->vmargin;
2049 if (s->img->pixmap)
2051 HDC compat_hdc = CreateCompatibleDC (hdc);
2052 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2053 HBRUSH orig_brush = SelectObject (hdc, fg_brush);
2054 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
2056 if (s->img->mask)
2058 HDC mask_dc = CreateCompatibleDC (hdc);
2059 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
2061 SetTextColor (hdc, RGB (0, 0, 0));
2062 SetBkColor (hdc, RGB (255, 255, 255));
2063 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
2064 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
2065 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
2066 mask_dc, s->slice.x, s->slice.y, SRCAND);
2067 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
2068 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
2070 SelectObject (mask_dc, mask_orig_obj);
2071 DeleteDC (mask_dc);
2073 else
2075 SetTextColor (hdc, s->gc->foreground);
2076 SetBkColor (hdc, s->gc->background);
2078 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
2079 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
2081 /* When the image has a mask, we can expect that at
2082 least part of a mouse highlight or a block cursor will
2083 be visible. If the image doesn't have a mask, make
2084 a block cursor visible by drawing a rectangle around
2085 the image. I believe it's looking better if we do
2086 nothing here for mouse-face. */
2087 if (s->hl == DRAW_CURSOR)
2089 int r = s->img->relief;
2090 if (r < 0) r = -r;
2091 w32_draw_rectangle (hdc, s->gc, x - r, y - r,
2092 s->slice.width + r*2 - 1,
2093 s->slice.height + r*2 - 1);
2097 SelectObject (hdc, orig_brush);
2098 DeleteObject (fg_brush);
2099 SelectObject (compat_hdc, orig_obj);
2100 DeleteDC (compat_hdc);
2102 else
2103 w32_draw_rectangle (hdc, s->gc, x, y,
2104 s->slice.width - 1, s->slice.height - 1);
2106 SelectObject (hdc, orig_hdc_obj);
2107 DeleteDC (hdc);
2111 /* Draw part of the background of glyph string S. X, Y, W, and H
2112 give the rectangle to draw. */
2114 static void
2115 x_draw_glyph_string_bg_rect (struct glyph_string *s, int x, int y, int w, int h)
2117 #if 0 /* TODO: stipple */
2118 if (s->stippled_p)
2120 /* Fill background with a stipple pattern. */
2121 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2122 XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
2123 XSetFillStyle (s->display, s->gc, FillSolid);
2125 else
2126 #endif
2127 x_clear_glyph_string_rect (s, x, y, w, h);
2131 /* Draw image glyph string S.
2133 s->y
2134 s->x +-------------------------
2135 | s->face->box
2137 | +-------------------------
2138 | | s->img->vmargin
2140 | | +-------------------
2141 | | | the image
2145 static void
2146 x_draw_image_glyph_string (struct glyph_string *s)
2148 int x, y;
2149 int box_line_hwidth = eabs (s->face->box_line_width);
2150 int box_line_vwidth = max (s->face->box_line_width, 0);
2151 int height;
2152 HBITMAP pixmap = 0;
2154 height = s->height - 2 * box_line_vwidth;
2156 /* Fill background with face under the image. Do it only if row is
2157 taller than image or if image has a clip mask to reduce
2158 flickering. */
2159 s->stippled_p = s->face->stipple != 0;
2160 if (height > s->slice.height
2161 || s->img->hmargin
2162 || s->img->vmargin
2163 || s->img->mask
2164 || s->img->pixmap == 0
2165 || s->width != s->background_width)
2167 x = s->x;
2168 if (s->first_glyph->left_box_line_p
2169 && s->slice.x == 0)
2170 x += box_line_hwidth;
2172 y = s->y;
2173 if (s->slice.y == 0)
2174 y += box_line_vwidth;
2176 #if 0 /* TODO: figure out if we need to do this on Windows. */
2177 if (s->img->mask)
2179 /* Create a pixmap as large as the glyph string. Fill it
2180 with the background color. Copy the image to it, using
2181 its mask. Copy the temporary pixmap to the display. */
2182 Screen *screen = FRAME_X_SCREEN (s->f);
2183 int depth = DefaultDepthOfScreen (screen);
2185 /* Create a pixmap as large as the glyph string. */
2186 pixmap = XCreatePixmap (s->display, s->window,
2187 s->background_width,
2188 s->height, depth);
2190 /* Don't clip in the following because we're working on the
2191 pixmap. */
2192 XSetClipMask (s->display, s->gc, None);
2194 /* Fill the pixmap with the background color/stipple. */
2195 if (s->stippled_p)
2197 /* Fill background with a stipple pattern. */
2198 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2199 XFillRectangle (s->display, pixmap, s->gc,
2200 0, 0, s->background_width, s->height);
2201 XSetFillStyle (s->display, s->gc, FillSolid);
2203 else
2205 XGCValues xgcv;
2206 XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
2207 &xgcv);
2208 XSetForeground (s->display, s->gc, xgcv.background);
2209 XFillRectangle (s->display, pixmap, s->gc,
2210 0, 0, s->background_width, s->height);
2211 XSetForeground (s->display, s->gc, xgcv.foreground);
2214 else
2215 #endif
2216 x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
2218 s->background_filled_p = 1;
2221 /* Draw the foreground. */
2222 if (pixmap != 0)
2224 w32_draw_image_foreground_1 (s, pixmap);
2225 x_set_glyph_string_clipping (s);
2227 HDC compat_hdc = CreateCompatibleDC (s->hdc);
2228 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2229 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
2230 HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
2232 SetTextColor (s->hdc, s->gc->foreground);
2233 SetBkColor (s->hdc, s->gc->background);
2234 BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
2235 compat_hdc, 0, 0, SRCCOPY);
2237 SelectObject (s->hdc, orig_brush);
2238 DeleteObject (fg_brush);
2239 SelectObject (compat_hdc, orig_obj);
2240 DeleteDC (compat_hdc);
2242 DeleteObject (pixmap);
2243 pixmap = 0;
2245 else
2246 x_draw_image_foreground (s);
2248 /* If we must draw a relief around the image, do it. */
2249 if (s->img->relief
2250 || s->hl == DRAW_IMAGE_RAISED
2251 || s->hl == DRAW_IMAGE_SUNKEN)
2252 x_draw_image_relief (s);
2256 /* Draw stretch glyph string S. */
2258 static void
2259 x_draw_stretch_glyph_string (struct glyph_string *s)
2261 eassert (s->first_glyph->type == STRETCH_GLYPH);
2263 if (s->hl == DRAW_CURSOR
2264 && !x_stretch_cursor_p)
2266 /* If `x-stretch-cursor' is nil, don't draw a block cursor as
2267 wide as the stretch glyph. */
2268 int width, background_width = s->background_width;
2269 int x = s->x;
2271 if (!s->row->reversed_p)
2273 int left_x = window_box_left_offset (s->w, TEXT_AREA);
2275 if (x < left_x)
2277 background_width -= left_x - x;
2278 x = left_x;
2281 else
2283 /* In R2L rows, draw the cursor on the right edge of the
2284 stretch glyph. */
2285 int right_x = window_box_right_offset (s->w, TEXT_AREA);
2287 if (x + background_width > right_x)
2288 background_width -= x - right_x;
2289 x += background_width;
2291 width = min (FRAME_COLUMN_WIDTH (s->f), background_width);
2292 if (s->row->reversed_p)
2293 x -= width;
2295 /* Draw cursor. */
2296 x_draw_glyph_string_bg_rect (s, x, s->y, width, s->height);
2298 /* Clear rest using the GC of the original non-cursor face. */
2299 if (width < background_width)
2301 XGCValues *gc = s->face->gc;
2302 int y = s->y;
2303 int w = background_width - width, h = s->height;
2304 RECT r;
2305 HDC hdc = s->hdc;
2307 if (!s->row->reversed_p)
2308 x += width;
2309 else
2310 x = s->x;
2311 if (s->row->mouse_face_p
2312 && cursor_in_mouse_face_p (s->w))
2314 x_set_mouse_face_gc (s);
2315 gc = s->gc;
2317 else
2318 gc = s->face->gc;
2320 get_glyph_string_clip_rect (s, &r);
2321 w32_set_clip_rectangle (hdc, &r);
2323 #if 0 /* TODO: stipple */
2324 if (s->face->stipple)
2326 /* Fill background with a stipple pattern. */
2327 XSetFillStyle (s->display, gc, FillOpaqueStippled);
2328 XFillRectangle (s->display, s->window, gc, x, y, w, h);
2329 XSetFillStyle (s->display, gc, FillSolid);
2331 else
2332 #endif
2334 w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
2338 else if (!s->background_filled_p)
2340 int background_width = s->background_width;
2341 int x = s->x, left_x = window_box_left_offset (s->w, TEXT_AREA);
2343 /* Don't draw into left margin, fringe or scrollbar area
2344 except for header line and mode line. */
2345 if (x < left_x && !s->row->mode_line_p)
2347 background_width -= left_x - x;
2348 x = left_x;
2350 if (background_width > 0)
2351 x_draw_glyph_string_bg_rect (s, x, s->y, background_width, s->height);
2354 s->background_filled_p = 1;
2358 /* Draw glyph string S. */
2360 static void
2361 x_draw_glyph_string (struct glyph_string *s)
2363 int relief_drawn_p = 0;
2365 /* If S draws into the background of its successor, draw the
2366 background of the successor first so that S can draw into it.
2367 This makes S->next use XDrawString instead of XDrawImageString. */
2368 if (s->next && s->right_overhang && !s->for_overlaps)
2370 int width;
2371 struct glyph_string *next;
2372 for (width = 0, next = s->next;
2373 next && width < s->right_overhang;
2374 width += next->width, next = next->next)
2375 if (next->first_glyph->type != IMAGE_GLYPH)
2377 x_set_glyph_string_gc (next);
2378 x_set_glyph_string_clipping (next);
2379 if (next->first_glyph->type == STRETCH_GLYPH)
2380 x_draw_stretch_glyph_string (next);
2381 else
2382 x_draw_glyph_string_background (next, 1);
2383 next->num_clips = 0;
2387 /* Set up S->gc, set clipping and draw S. */
2388 x_set_glyph_string_gc (s);
2390 /* Draw relief (if any) in advance for char/composition so that the
2391 glyph string can be drawn over it. */
2392 if (!s->for_overlaps
2393 && s->face->box != FACE_NO_BOX
2394 && (s->first_glyph->type == CHAR_GLYPH
2395 || s->first_glyph->type == COMPOSITE_GLYPH))
2398 x_set_glyph_string_clipping (s);
2399 x_draw_glyph_string_background (s, 1);
2400 x_draw_glyph_string_box (s);
2401 x_set_glyph_string_clipping (s);
2402 relief_drawn_p = 1;
2404 else if (!s->clip_head /* draw_glyphs didn't specify a clip mask. */
2405 && !s->clip_tail
2406 && ((s->prev && s->prev->hl != s->hl && s->left_overhang)
2407 || (s->next && s->next->hl != s->hl && s->right_overhang)))
2408 /* We must clip just this glyph. left_overhang part has already
2409 drawn when s->prev was drawn, and right_overhang part will be
2410 drawn later when s->next is drawn. */
2411 x_set_glyph_string_clipping_exactly (s, s);
2412 else
2413 x_set_glyph_string_clipping (s);
2415 switch (s->first_glyph->type)
2417 case IMAGE_GLYPH:
2418 x_draw_image_glyph_string (s);
2419 break;
2421 case STRETCH_GLYPH:
2422 x_draw_stretch_glyph_string (s);
2423 break;
2425 case CHAR_GLYPH:
2426 if (s->for_overlaps)
2427 s->background_filled_p = 1;
2428 else
2429 x_draw_glyph_string_background (s, 0);
2430 x_draw_glyph_string_foreground (s);
2431 break;
2433 case COMPOSITE_GLYPH:
2434 if (s->for_overlaps || (s->cmp_from > 0
2435 && ! s->first_glyph->u.cmp.automatic))
2436 s->background_filled_p = 1;
2437 else
2438 x_draw_glyph_string_background (s, 1);
2439 x_draw_composite_glyph_string_foreground (s);
2440 break;
2442 case GLYPHLESS_GLYPH:
2443 if (s->for_overlaps)
2444 s->background_filled_p = 1;
2445 else
2446 x_draw_glyph_string_background (s, 0);
2447 x_draw_glyphless_glyph_string_foreground (s);
2448 break;
2450 default:
2451 emacs_abort ();
2454 if (!s->for_overlaps)
2456 /* Draw underline. */
2457 if (s->face->underline_p)
2459 if (s->face->underline_type == FACE_UNDER_WAVE)
2461 COLORREF color;
2463 if (s->face->underline_defaulted_p)
2464 color = s->gc->foreground;
2465 else
2466 color = s->face->underline_color;
2468 w32_draw_underwave (s, color);
2470 else if (s->face->underline_type == FACE_UNDER_LINE)
2472 unsigned long thickness, position;
2473 int y;
2475 if (s->prev && s->prev->face->underline_p
2476 && s->prev->face->underline_type == FACE_UNDER_LINE)
2478 /* We use the same underline style as the previous one. */
2479 thickness = s->prev->underline_thickness;
2480 position = s->prev->underline_position;
2482 else
2484 /* Get the underline thickness. Default is 1 pixel. */
2485 if (s->font && s->font->underline_thickness > 0)
2486 thickness = s->font->underline_thickness;
2487 else
2488 thickness = 1;
2489 if (x_underline_at_descent_line)
2490 position = (s->height - thickness) - (s->ybase - s->y);
2491 else
2493 /* Get the underline position. This is the recommended
2494 vertical offset in pixels from the baseline to the top of
2495 the underline. This is a signed value according to the
2496 specs, and its default is
2498 ROUND ((maximum_descent) / 2), with
2499 ROUND (x) = floor (x + 0.5) */
2501 if (x_use_underline_position_properties
2502 && s->font && s->font->underline_position >= 0)
2503 position = s->font->underline_position;
2504 else if (s->font)
2505 position = (s->font->descent + 1) / 2;
2507 position = max (position, underline_minimum_offset);
2509 /* Check the sanity of thickness and position. We should
2510 avoid drawing underline out of the current line area. */
2511 if (s->y + s->height <= s->ybase + position)
2512 position = (s->height - 1) - (s->ybase - s->y);
2513 if (s->y + s->height < s->ybase + position + thickness)
2514 thickness = (s->y + s->height) - (s->ybase + position);
2515 s->underline_thickness = thickness;
2516 s->underline_position =position;
2517 y = s->ybase + position;
2518 if (s->face->underline_defaulted_p)
2520 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2521 y, s->width, 1);
2523 else
2525 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2526 y, s->width, 1);
2530 /* Draw overline. */
2531 if (s->face->overline_p)
2533 unsigned long dy = 0, h = 1;
2535 if (s->face->overline_color_defaulted_p)
2537 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2538 s->y + dy, s->width, h);
2540 else
2542 w32_fill_area (s->f, s->hdc, s->face->overline_color, s->x,
2543 s->y + dy, s->width, h);
2547 /* Draw strike-through. */
2548 if (s->face->strike_through_p
2549 && !FONT_TEXTMETRIC (s->font).tmStruckOut)
2551 unsigned long h = 1;
2552 unsigned long dy = (s->height - h) / 2;
2554 if (s->face->strike_through_color_defaulted_p)
2556 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
2557 s->width, h);
2559 else
2561 w32_fill_area (s->f, s->hdc, s->face->strike_through_color, s->x,
2562 s->y + dy, s->width, h);
2566 /* Draw relief if not yet drawn. */
2567 if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
2568 x_draw_glyph_string_box (s);
2570 if (s->prev)
2572 struct glyph_string *prev;
2574 for (prev = s->prev; prev; prev = prev->prev)
2575 if (prev->hl != s->hl
2576 && prev->x + prev->width + prev->right_overhang > s->x)
2578 /* As prev was drawn while clipped to its own area, we
2579 must draw the right_overhang part using s->hl now. */
2580 enum draw_glyphs_face save = prev->hl;
2582 prev->hl = s->hl;
2583 x_set_glyph_string_gc (prev);
2584 x_set_glyph_string_clipping_exactly (s, prev);
2585 if (prev->first_glyph->type == CHAR_GLYPH)
2586 x_draw_glyph_string_foreground (prev);
2587 else
2588 x_draw_composite_glyph_string_foreground (prev);
2589 w32_set_clip_rectangle (prev->hdc, NULL);
2590 prev->hl = save;
2591 prev->num_clips = 0;
2595 if (s->next)
2597 struct glyph_string *next;
2599 for (next = s->next; next; next = next->next)
2600 if (next->hl != s->hl
2601 && next->x - next->left_overhang < s->x + s->width)
2603 /* As next will be drawn while clipped to its own area,
2604 we must draw the left_overhang part using s->hl now. */
2605 enum draw_glyphs_face save = next->hl;
2607 next->hl = s->hl;
2608 x_set_glyph_string_gc (next);
2609 x_set_glyph_string_clipping_exactly (s, next);
2610 if (next->first_glyph->type == CHAR_GLYPH)
2611 x_draw_glyph_string_foreground (next);
2612 else
2613 x_draw_composite_glyph_string_foreground (next);
2614 w32_set_clip_rectangle (next->hdc, NULL);
2615 next->hl = save;
2616 next->num_clips = 0;
2617 next->clip_head = s->next;
2622 /* Reset clipping. */
2623 w32_set_clip_rectangle (s->hdc, NULL);
2624 s->num_clips = 0;
2628 /* Shift display to make room for inserted glyphs. */
2630 void
2631 w32_shift_glyphs_for_insert (struct frame *f, int x, int y,
2632 int width, int height, int shift_by)
2634 HDC hdc;
2636 hdc = get_frame_dc (f);
2637 BitBlt (hdc, x + shift_by, y, width, height,
2638 hdc, x, y, SRCCOPY);
2640 release_frame_dc (f, hdc);
2644 /* Delete N glyphs at the nominal cursor position. Not implemented
2645 for X frames. */
2647 static void
2648 x_delete_glyphs (struct frame *f, register int n)
2650 if (! FRAME_W32_P (f))
2651 return;
2653 emacs_abort ();
2657 /* Clear entire frame. */
2659 static void
2660 x_clear_frame (struct frame *f)
2662 if (! FRAME_W32_P (f))
2663 return;
2665 /* Clearing the frame will erase any cursor, so mark them all as no
2666 longer visible. */
2667 mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2668 output_cursor.hpos = output_cursor.vpos = 0;
2669 output_cursor.x = -1;
2671 /* We don't set the output cursor here because there will always
2672 follow an explicit cursor_to. */
2673 block_input ();
2675 w32_clear_window (f);
2677 /* We have to clear the scroll bars, too. If we have changed
2678 colors or something like that, then they should be notified. */
2679 x_scroll_bar_clear (f);
2681 unblock_input ();
2685 /* Make audible bell. */
2687 static void
2688 w32_ring_bell (struct frame *f)
2690 block_input ();
2692 if (FRAME_W32_P (f) && visible_bell)
2694 int i;
2695 HWND hwnd = FRAME_W32_WINDOW (f);
2697 for (i = 0; i < 5; i++)
2699 FlashWindow (hwnd, TRUE);
2700 Sleep (10);
2702 FlashWindow (hwnd, FALSE);
2704 else
2705 w32_sys_ring_bell (f);
2707 unblock_input ();
2711 /* Specify how many text lines, from the top of the window,
2712 should be affected by insert-lines and delete-lines operations.
2713 This, and those operations, are used only within an update
2714 that is bounded by calls to x_update_begin and x_update_end. */
2716 static void
2717 w32_set_terminal_window (struct frame *f, int n)
2719 /* This function intentionally left blank. */
2723 /***********************************************************************
2724 Line Dance
2725 ***********************************************************************/
2727 /* Perform an insert-lines or delete-lines operation, inserting N
2728 lines or deleting -N lines at vertical position VPOS. */
2730 static void
2731 x_ins_del_lines (struct frame *f, int vpos, int n)
2733 if (! FRAME_W32_P (f))
2734 return;
2736 emacs_abort ();
2740 /* Scroll part of the display as described by RUN. */
2742 static void
2743 x_scroll_run (struct window *w, struct run *run)
2745 struct frame *f = XFRAME (w->frame);
2746 int x, y, width, height, from_y, to_y, bottom_y;
2747 HWND hwnd = FRAME_W32_WINDOW (f);
2748 HRGN expect_dirty;
2750 /* Get frame-relative bounding box of the text display area of W,
2751 without mode lines. Include in this box the left and right
2752 fringes of W. */
2753 window_box (w, -1, &x, &y, &width, &height);
2755 /* If the fringe is adjacent to the left (right) scroll bar of a
2756 leftmost (rightmost, respectively) window, then extend its
2757 background to the gap between the fringe and the bar. */
2758 if ((WINDOW_LEFTMOST_P (w)
2759 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
2760 || (WINDOW_RIGHTMOST_P (w)
2761 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
2763 int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
2765 if (sb_width > 0)
2767 int bar_area_x = WINDOW_SCROLL_BAR_AREA_X (w);
2768 int bar_area_width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
2769 * FRAME_COLUMN_WIDTH (f));
2771 if (bar_area_x + bar_area_width == x)
2773 x = bar_area_x + sb_width;
2774 width += bar_area_width - sb_width;
2776 else if (x + width == bar_area_x)
2777 width += bar_area_width - sb_width;
2781 from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2782 to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2783 bottom_y = y + height;
2785 if (to_y < from_y)
2787 /* Scrolling up. Make sure we don't copy part of the mode
2788 line at the bottom. */
2789 if (from_y + run->height > bottom_y)
2790 height = bottom_y - from_y;
2791 else
2792 height = run->height;
2793 expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
2795 else
2797 /* Scrolling down. Make sure we don't copy over the mode line.
2798 at the bottom. */
2799 if (to_y + run->height > bottom_y)
2800 height = bottom_y - to_y;
2801 else
2802 height = run->height;
2803 expect_dirty = CreateRectRgn (x, y, x + width, to_y);
2806 block_input ();
2808 /* Cursor off. Will be switched on again in x_update_window_end. */
2809 updated_window = w;
2810 x_clear_cursor (w);
2813 RECT from;
2814 RECT to;
2815 HRGN dirty = CreateRectRgn (0, 0, 0, 0);
2816 HRGN combined = CreateRectRgn (0, 0, 0, 0);
2818 from.left = to.left = x;
2819 from.right = to.right = x + width;
2820 from.top = from_y;
2821 from.bottom = from_y + height;
2822 to.top = y;
2823 to.bottom = bottom_y;
2825 ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
2826 NULL, SW_INVALIDATE);
2828 /* Combine this with what we expect to be dirty. This covers the
2829 case where not all of the region we expect is actually dirty. */
2830 CombineRgn (combined, dirty, expect_dirty, RGN_OR);
2832 /* If the dirty region is not what we expected, redraw the entire frame. */
2833 if (!EqualRgn (combined, expect_dirty))
2834 SET_FRAME_GARBAGED (f);
2836 DeleteObject (dirty);
2837 DeleteObject (combined);
2840 unblock_input ();
2841 DeleteObject (expect_dirty);
2846 /***********************************************************************
2847 Exposure Events
2848 ***********************************************************************/
2850 static void
2851 frame_highlight (struct frame *f)
2853 x_update_cursor (f, 1);
2854 x_set_frame_alpha (f);
2857 static void
2858 frame_unhighlight (struct frame *f)
2860 x_update_cursor (f, 1);
2861 x_set_frame_alpha (f);
2864 /* The focus has changed. Update the frames as necessary to reflect
2865 the new situation. Note that we can't change the selected frame
2866 here, because the Lisp code we are interrupting might become confused.
2867 Each event gets marked with the frame in which it occurred, so the
2868 Lisp code can tell when the switch took place by examining the events. */
2870 static void
2871 x_new_focus_frame (struct w32_display_info *dpyinfo, struct frame *frame)
2873 struct frame *old_focus = dpyinfo->w32_focus_frame;
2875 if (frame != dpyinfo->w32_focus_frame)
2877 /* Set this before calling other routines, so that they see
2878 the correct value of w32_focus_frame. */
2879 dpyinfo->w32_focus_frame = frame;
2881 if (old_focus && old_focus->auto_lower)
2882 x_lower_frame (old_focus);
2884 if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
2885 pending_autoraise_frame = dpyinfo->w32_focus_frame;
2886 else
2887 pending_autoraise_frame = 0;
2890 x_frame_rehighlight (dpyinfo);
2894 /* Handle FocusIn and FocusOut state changes for FRAME.
2895 If FRAME has focus and there exists more than one frame, puts
2896 a FOCUS_IN_EVENT into *BUFP. */
2898 static void
2899 x_focus_changed (int type, int state, struct w32_display_info *dpyinfo,
2900 struct frame *frame, struct input_event *bufp)
2902 if (type == WM_SETFOCUS)
2904 if (dpyinfo->w32_focus_event_frame != frame)
2906 x_new_focus_frame (dpyinfo, frame);
2907 dpyinfo->w32_focus_event_frame = frame;
2909 /* Don't stop displaying the initial startup message
2910 for a switch-frame event we don't need. */
2911 if (NILP (Vterminal_frame)
2912 && CONSP (Vframe_list)
2913 && !NILP (XCDR (Vframe_list)))
2915 bufp->kind = FOCUS_IN_EVENT;
2916 XSETFRAME (bufp->frame_or_window, frame);
2920 frame->output_data.x->focus_state |= state;
2922 /* TODO: IME focus? */
2924 else if (type == WM_KILLFOCUS)
2926 frame->output_data.x->focus_state &= ~state;
2928 if (dpyinfo->w32_focus_event_frame == frame)
2930 dpyinfo->w32_focus_event_frame = 0;
2931 x_new_focus_frame (dpyinfo, 0);
2934 /* TODO: IME focus? */
2939 /* The focus may have changed. Figure out if it is a real focus change,
2940 by checking both FocusIn/Out and Enter/LeaveNotify events.
2942 Returns FOCUS_IN_EVENT event in *BUFP. */
2944 static void
2945 w32_detect_focus_change (struct w32_display_info *dpyinfo, W32Msg *event,
2946 struct input_event *bufp)
2948 struct frame *frame;
2950 frame = x_any_window_to_frame (dpyinfo, event->msg.hwnd);
2951 if (! frame)
2952 return;
2954 /* On w32, this is only called from focus events, so no switch needed. */
2955 x_focus_changed (event->msg.message,
2956 (event->msg.message == WM_KILLFOCUS ?
2957 FOCUS_IMPLICIT : FOCUS_EXPLICIT),
2958 dpyinfo, frame, bufp);
2962 /* Handle an event saying the mouse has moved out of an Emacs frame. */
2964 void
2965 x_mouse_leave (struct w32_display_info *dpyinfo)
2967 x_new_focus_frame (dpyinfo, dpyinfo->w32_focus_event_frame);
2970 /* The focus has changed, or we have redirected a frame's focus to
2971 another frame (this happens when a frame uses a surrogate
2972 mini-buffer frame). Shift the highlight as appropriate.
2974 The FRAME argument doesn't necessarily have anything to do with which
2975 frame is being highlighted or un-highlighted; we only use it to find
2976 the appropriate X display info. */
2978 static void
2979 w32_frame_rehighlight (struct frame *frame)
2981 if (! FRAME_W32_P (frame))
2982 return;
2983 x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
2986 static void
2987 x_frame_rehighlight (struct w32_display_info *dpyinfo)
2989 struct frame *old_highlight = dpyinfo->x_highlight_frame;
2991 if (dpyinfo->w32_focus_frame)
2993 dpyinfo->x_highlight_frame
2994 = ((FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
2995 ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
2996 : dpyinfo->w32_focus_frame);
2997 if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
2999 fset_focus_frame (dpyinfo->w32_focus_frame, Qnil);
3000 dpyinfo->x_highlight_frame = dpyinfo->w32_focus_frame;
3003 else
3004 dpyinfo->x_highlight_frame = 0;
3006 if (dpyinfo->x_highlight_frame != old_highlight)
3008 if (old_highlight)
3009 frame_unhighlight (old_highlight);
3010 if (dpyinfo->x_highlight_frame)
3011 frame_highlight (dpyinfo->x_highlight_frame);
3015 /* Keyboard processing - modifier keys, etc. */
3017 /* Convert a keysym to its name. */
3019 char *
3020 x_get_keysym_name (int keysym)
3022 /* Make static so we can always return it */
3023 static char value[100];
3025 block_input ();
3026 GetKeyNameText (keysym, value, 100);
3027 unblock_input ();
3029 return value;
3032 static int
3033 codepage_for_locale (LCID locale)
3035 char cp[20];
3037 if (GetLocaleInfo (locale, LOCALE_IDEFAULTANSICODEPAGE, cp, 20) > 0)
3038 return atoi (cp);
3039 else
3040 return CP_ACP;
3044 /* Mouse clicks and mouse movement. Rah. */
3046 /* Parse a button MESSAGE. The button index is returned in PBUTTON, and
3047 the state in PUP. XBUTTON provides extra information for extended mouse
3048 button messages. Returns FALSE if unable to parse the message. */
3049 BOOL
3050 parse_button (int message, int xbutton, int * pbutton, int * pup)
3052 int button = 0;
3053 int up = 0;
3055 switch (message)
3057 case WM_LBUTTONDOWN:
3058 button = 0;
3059 up = 0;
3060 break;
3061 case WM_LBUTTONUP:
3062 button = 0;
3063 up = 1;
3064 break;
3065 case WM_MBUTTONDOWN:
3066 if (NILP (Vw32_swap_mouse_buttons))
3067 button = 1;
3068 else
3069 button = 2;
3070 up = 0;
3071 break;
3072 case WM_MBUTTONUP:
3073 if (NILP (Vw32_swap_mouse_buttons))
3074 button = 1;
3075 else
3076 button = 2;
3077 up = 1;
3078 break;
3079 case WM_RBUTTONDOWN:
3080 if (NILP (Vw32_swap_mouse_buttons))
3081 button = 2;
3082 else
3083 button = 1;
3084 up = 0;
3085 break;
3086 case WM_RBUTTONUP:
3087 if (NILP (Vw32_swap_mouse_buttons))
3088 button = 2;
3089 else
3090 button = 1;
3091 up = 1;
3092 break;
3093 case WM_XBUTTONDOWN:
3094 button = xbutton + 2;
3095 up = 0;
3096 break;
3097 case WM_XBUTTONUP:
3098 button = xbutton + 2;
3099 up = 1;
3100 break;
3101 default:
3102 return (FALSE);
3105 if (pup) *pup = up;
3106 if (pbutton) *pbutton = button;
3108 return (TRUE);
3112 /* Prepare a mouse-event in *RESULT for placement in the input queue.
3114 If the event is a button press, then note that we have grabbed
3115 the mouse. */
3117 static Lisp_Object
3118 construct_mouse_click (struct input_event *result, W32Msg *msg, struct frame *f)
3120 int button;
3121 int up;
3123 parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
3124 &button, &up);
3126 /* Make the event type NO_EVENT; we'll change that when we decide
3127 otherwise. */
3128 result->kind = MOUSE_CLICK_EVENT;
3129 result->code = button;
3130 result->timestamp = msg->msg.time;
3131 result->modifiers = (msg->dwModifiers
3132 | (up
3133 ? up_modifier
3134 : down_modifier));
3136 XSETINT (result->x, LOWORD (msg->msg.lParam));
3137 XSETINT (result->y, HIWORD (msg->msg.lParam));
3138 XSETFRAME (result->frame_or_window, f);
3139 result->arg = Qnil;
3140 return Qnil;
3143 static Lisp_Object
3144 construct_mouse_wheel (struct input_event *result, W32Msg *msg, struct frame *f)
3146 POINT p;
3147 int delta;
3149 result->kind = msg->msg.message == WM_MOUSEHWHEEL ? HORIZ_WHEEL_EVENT
3150 : WHEEL_EVENT;
3151 result->code = 0;
3152 result->timestamp = msg->msg.time;
3154 /* A WHEEL_DELTA positive value indicates that the wheel was rotated
3155 forward, away from the user (up); a negative value indicates that
3156 the wheel was rotated backward, toward the user (down). */
3157 delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
3159 /* The up and down modifiers indicate if the wheel was rotated up or
3160 down based on WHEEL_DELTA value. */
3161 result->modifiers = (msg->dwModifiers
3162 | ((delta < 0 ) ? down_modifier : up_modifier));
3164 /* With multiple monitors, we can legitimately get negative
3165 coordinates, so cast to short to interpret them correctly. */
3166 p.x = (short) LOWORD (msg->msg.lParam);
3167 p.y = (short) HIWORD (msg->msg.lParam);
3168 ScreenToClient (msg->msg.hwnd, &p);
3169 XSETINT (result->x, p.x);
3170 XSETINT (result->y, p.y);
3171 XSETFRAME (result->frame_or_window, f);
3172 result->arg = Qnil;
3173 return Qnil;
3176 static Lisp_Object
3177 construct_drag_n_drop (struct input_event *result, W32Msg *msg, struct frame *f)
3179 Lisp_Object files;
3180 Lisp_Object frame;
3181 HDROP hdrop;
3182 POINT p;
3183 WORD num_files;
3184 guichar_t *name;
3185 int i, len;
3187 result->kind = DRAG_N_DROP_EVENT;
3188 result->code = 0;
3189 result->timestamp = msg->msg.time;
3190 result->modifiers = msg->dwModifiers;
3192 hdrop = (HDROP) msg->msg.wParam;
3193 DragQueryPoint (hdrop, &p);
3195 #if 0
3196 p.x = LOWORD (msg->msg.lParam);
3197 p.y = HIWORD (msg->msg.lParam);
3198 ScreenToClient (msg->msg.hwnd, &p);
3199 #endif
3201 XSETINT (result->x, p.x);
3202 XSETINT (result->y, p.y);
3204 num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
3205 files = Qnil;
3207 for (i = 0; i < num_files; i++)
3209 len = GUI_FN (DragQueryFile) (hdrop, i, NULL, 0);
3210 if (len <= 0)
3211 continue;
3213 name = alloca ((len + 1) * sizeof (*name));
3214 GUI_FN (DragQueryFile) (hdrop, i, name, len + 1);
3215 #ifdef NTGUI_UNICODE
3216 files = Fcons (from_unicode_buffer (name), files);
3217 #else
3218 files = Fcons (DECODE_FILE (build_string (name)), files);
3219 #endif /* NTGUI_UNICODE */
3222 DragFinish (hdrop);
3224 XSETFRAME (frame, f);
3225 result->frame_or_window = frame;
3226 result->arg = files;
3227 return Qnil;
3231 #if HAVE_W32NOTIFY
3233 /* File event notifications (see w32notify.c). */
3235 Lisp_Object
3236 lispy_file_action (DWORD action)
3238 static char unknown_fmt[] = "unknown-action(%d)";
3239 Lisp_Object retval;
3241 switch (action)
3243 case FILE_ACTION_ADDED:
3244 retval = Qadded;
3245 break;
3246 case FILE_ACTION_REMOVED:
3247 retval = Qremoved;
3248 break;
3249 case FILE_ACTION_MODIFIED:
3250 retval = Qmodified;
3251 break;
3252 case FILE_ACTION_RENAMED_OLD_NAME:
3253 retval = Qrenamed_from;
3254 break;
3255 case FILE_ACTION_RENAMED_NEW_NAME:
3256 retval = Qrenamed_to;
3257 break;
3258 default:
3260 char buf[sizeof(unknown_fmt) - 1 + INT_STRLEN_BOUND (DWORD)];
3262 sprintf (buf, unknown_fmt, action);
3263 retval = intern (buf);
3265 break;
3268 return retval;
3271 #ifdef WINDOWSNT
3272 /* Put file notifications into the Emacs input event queue. This
3273 function runs when the WM_EMACS_FILENOTIFY message arrives from a
3274 watcher thread. */
3275 static void
3276 queue_notifications (struct input_event *event, W32Msg *msg, struct frame *f,
3277 int *evcount)
3279 BYTE *p = file_notifications;
3280 FILE_NOTIFY_INFORMATION *fni = (PFILE_NOTIFY_INFORMATION)p;
3281 const DWORD min_size
3282 = offsetof (FILE_NOTIFY_INFORMATION, FileName) + sizeof(wchar_t);
3283 Lisp_Object frame;
3285 /* We cannot process notification before Emacs is fully initialized,
3286 since we need the UTF-16LE coding-system to be set up. */
3287 if (!initialized)
3289 notification_buffer_in_use = 0;
3290 return;
3293 XSETFRAME (frame, f);
3295 enter_crit ();
3296 if (notification_buffer_in_use)
3298 DWORD info_size = notifications_size;
3299 Lisp_Object cs = intern ("utf-16le");
3300 Lisp_Object obj = w32_get_watch_object (notifications_desc);
3302 /* notifications_size could be zero when the buffer of
3303 notifications overflowed on the OS level, or when the
3304 directory being watched was itself deleted. Do nothing in
3305 that case. */
3306 if (info_size
3307 && !NILP (obj) && CONSP (obj))
3309 Lisp_Object callback = XCDR (obj);
3311 while (info_size >= min_size)
3313 Lisp_Object utf_16_fn
3314 = make_unibyte_string ((char *)fni->FileName,
3315 fni->FileNameLength);
3316 /* Note: mule-conf is preloaded, so utf-16le must
3317 already be defined at this point. */
3318 Lisp_Object fname
3319 = code_convert_string_norecord (utf_16_fn, cs, 0);
3320 Lisp_Object action = lispy_file_action (fni->Action);
3322 event->kind = FILE_NOTIFY_EVENT;
3323 event->code
3324 = (ptrdiff_t)XINT (XIL ((EMACS_INT)notifications_desc));
3325 event->timestamp = msg->msg.time;
3326 event->modifiers = 0;
3327 event->frame_or_window = callback;
3328 event->arg = Fcons (action, fname);
3329 kbd_buffer_store_event (event);
3330 (*evcount)++;
3332 if (!fni->NextEntryOffset)
3333 break;
3334 p += fni->NextEntryOffset;
3335 fni = (PFILE_NOTIFY_INFORMATION)p;
3336 info_size -= fni->NextEntryOffset;
3339 notification_buffer_in_use = 0;
3341 else
3342 DebPrint (("We were promised notifications, but in-use flag is zero!\n"));
3343 leave_crit ();
3345 /* We've stuffed all the events ourselves, so w32_read_socket shouldn't. */
3346 event->kind = NO_EVENT;
3348 #endif /* WINDOWSNT */
3349 #endif /* HAVE_W32NOTIFY */
3352 /* Function to report a mouse movement to the mainstream Emacs code.
3353 The input handler calls this.
3355 We have received a mouse movement event, which is given in *event.
3356 If the mouse is over a different glyph than it was last time, tell
3357 the mainstream emacs code by setting mouse_moved. If not, ask for
3358 another motion event, so we can check again the next time it moves. */
3360 static MSG last_mouse_motion_event;
3361 static Lisp_Object last_mouse_motion_frame;
3363 static int
3364 note_mouse_movement (FRAME_PTR frame, MSG *msg)
3366 int mouse_x = LOWORD (msg->lParam);
3367 int mouse_y = HIWORD (msg->lParam);
3369 last_mouse_movement_time = msg->time;
3370 memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
3371 XSETFRAME (last_mouse_motion_frame, frame);
3373 if (!FRAME_X_OUTPUT (frame))
3374 return 0;
3376 if (msg->hwnd != FRAME_W32_WINDOW (frame))
3378 frame->mouse_moved = 1;
3379 last_mouse_scroll_bar = Qnil;
3380 note_mouse_highlight (frame, -1, -1);
3381 last_mouse_glyph_frame = 0;
3382 return 1;
3385 /* Has the mouse moved off the glyph it was on at the last sighting? */
3386 if (frame != last_mouse_glyph_frame
3387 || mouse_x < last_mouse_glyph.left
3388 || mouse_x >= last_mouse_glyph.right
3389 || mouse_y < last_mouse_glyph.top
3390 || mouse_y >= last_mouse_glyph.bottom)
3392 frame->mouse_moved = 1;
3393 last_mouse_scroll_bar = Qnil;
3394 note_mouse_highlight (frame, mouse_x, mouse_y);
3395 /* Remember the mouse position here, as w32_mouse_position only
3396 gets called when mouse tracking is enabled but we also need
3397 to keep track of the mouse for help_echo and highlighting at
3398 other times. */
3399 remember_mouse_glyph (frame, mouse_x, mouse_y, &last_mouse_glyph);
3400 last_mouse_glyph_frame = frame;
3401 return 1;
3404 return 0;
3408 /************************************************************************
3409 Mouse Face
3410 ************************************************************************/
3412 static struct scroll_bar *x_window_to_scroll_bar (Window);
3413 static void x_scroll_bar_report_motion (FRAME_PTR *, Lisp_Object *,
3414 enum scroll_bar_part *,
3415 Lisp_Object *, Lisp_Object *,
3416 unsigned long *);
3417 static void x_check_fullscreen (struct frame *);
3419 static void
3420 redo_mouse_highlight (void)
3422 if (!NILP (last_mouse_motion_frame)
3423 && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame)))
3424 note_mouse_highlight (XFRAME (last_mouse_motion_frame),
3425 LOWORD (last_mouse_motion_event.lParam),
3426 HIWORD (last_mouse_motion_event.lParam));
3429 static void
3430 w32_define_cursor (Window window, Cursor cursor)
3432 PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
3434 /* Return the current position of the mouse.
3435 *fp should be a frame which indicates which display to ask about.
3437 If the mouse movement started in a scroll bar, set *fp, *bar_window,
3438 and *part to the frame, window, and scroll bar part that the mouse
3439 is over. Set *x and *y to the portion and whole of the mouse's
3440 position on the scroll bar.
3442 If the mouse movement started elsewhere, set *fp to the frame the
3443 mouse is on, *bar_window to nil, and *x and *y to the character cell
3444 the mouse is over.
3446 Set *time to the server time-stamp for the time at which the mouse
3447 was at this position.
3449 Don't store anything if we don't have a valid set of values to report.
3451 This clears the mouse_moved flag, so we can wait for the next mouse
3452 movement. */
3454 static void
3455 w32_mouse_position (FRAME_PTR *fp, int insist, Lisp_Object *bar_window,
3456 enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
3457 unsigned long *time)
3459 FRAME_PTR f1;
3461 block_input ();
3463 if (! NILP (last_mouse_scroll_bar) && insist == 0)
3464 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time);
3465 else
3467 POINT pt;
3469 Lisp_Object frame, tail;
3471 /* Clear the mouse-moved flag for every frame on this display. */
3472 FOR_EACH_FRAME (tail, frame)
3473 XFRAME (frame)->mouse_moved = 0;
3475 last_mouse_scroll_bar = Qnil;
3477 GetCursorPos (&pt);
3479 /* Now we have a position on the root; find the innermost window
3480 containing the pointer. */
3482 if (FRAME_W32_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame
3483 && FRAME_LIVE_P (last_mouse_frame))
3485 /* If mouse was grabbed on a frame, give coords for that frame
3486 even if the mouse is now outside it. */
3487 f1 = last_mouse_frame;
3489 else
3491 /* Is window under mouse one of our frames? */
3492 f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
3493 WindowFromPoint (pt));
3496 /* If not, is it one of our scroll bars? */
3497 if (! f1)
3499 struct scroll_bar *bar
3500 = x_window_to_scroll_bar (WindowFromPoint (pt));
3502 if (bar)
3504 f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3508 if (f1 == 0 && insist > 0)
3509 f1 = SELECTED_FRAME ();
3511 if (f1)
3513 /* Ok, we found a frame. Store all the values.
3514 last_mouse_glyph is a rectangle used to reduce the
3515 generation of mouse events. To not miss any motion
3516 events, we must divide the frame into rectangles of the
3517 size of the smallest character that could be displayed
3518 on it, i.e. into the same rectangles that matrices on
3519 the frame are divided into. */
3521 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3522 remember_mouse_glyph (f1, pt.x, pt.y, &last_mouse_glyph);
3523 last_mouse_glyph_frame = f1;
3525 *bar_window = Qnil;
3526 *part = 0;
3527 *fp = f1;
3528 XSETINT (*x, pt.x);
3529 XSETINT (*y, pt.y);
3530 *time = last_mouse_movement_time;
3535 unblock_input ();
3539 /***********************************************************************
3540 Tool-bars
3541 ***********************************************************************/
3543 /* Handle mouse button event on the tool-bar of frame F, at
3544 frame-relative coordinates X/Y. EVENT_TYPE is either ButtonPress
3545 or ButtonRelease. */
3547 static void
3548 w32_handle_tool_bar_click (struct frame *f, struct input_event *button_event)
3550 int x = XFASTINT (button_event->x);
3551 int y = XFASTINT (button_event->y);
3553 if (button_event->modifiers & down_modifier)
3554 handle_tool_bar_click (f, x, y, 1, 0);
3555 else
3556 handle_tool_bar_click (f, x, y, 0,
3557 button_event->modifiers & ~up_modifier);
3562 /***********************************************************************
3563 Scroll bars
3564 ***********************************************************************/
3566 /* Scroll bar support. */
3568 /* Given a window ID, find the struct scroll_bar which manages it.
3569 This can be called in GC, so we have to make sure to strip off mark
3570 bits. */
3572 static struct scroll_bar *
3573 x_window_to_scroll_bar (Window window_id)
3575 Lisp_Object tail, frame;
3577 FOR_EACH_FRAME (tail, frame)
3579 Lisp_Object bar, condemned;
3581 /* Scan this frame's scroll bar list for a scroll bar with the
3582 right window ID. */
3583 condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
3584 for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
3585 /* This trick allows us to search both the ordinary and
3586 condemned scroll bar lists with one loop. */
3587 ! NILP (bar) || (bar = condemned,
3588 condemned = Qnil,
3589 ! NILP (bar));
3590 bar = XSCROLL_BAR (bar)->next)
3591 if (SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
3592 return XSCROLL_BAR (bar);
3595 return 0;
3600 /* Set the thumb size and position of scroll bar BAR. We are currently
3601 displaying PORTION out of a whole WHOLE, and our position POSITION. */
3603 static void
3604 w32_set_scroll_bar_thumb (struct scroll_bar *bar,
3605 int portion, int position, int whole)
3607 Window w = SCROLL_BAR_W32_WINDOW (bar);
3608 /* We use the whole scroll-bar height in the calculations below, to
3609 avoid strange effects like scrolling backwards when just clicking
3610 on the handle (without moving it). */
3611 double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height))
3612 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3613 int sb_page, sb_pos;
3614 BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
3615 SCROLLINFO si;
3617 /* We used to change the nPage setting while dragging the handle,
3618 but that had very strange effects (such as scrolling backwards
3619 while dragging downwards).
3621 Now, we don't change the nPage setting while dragging unless we
3622 get near to the end of the buffer, in which case we often have to
3623 resize the handle to "go all the way". */
3625 if (draggingp)
3627 int near_bottom_p;
3628 block_input ();
3629 si.cbSize = sizeof (si);
3630 si.fMask = SIF_POS | SIF_PAGE;
3631 GetScrollInfo (w, SB_CTL, &si);
3632 near_bottom_p = si.nPos + si.nPage >= range;
3633 unblock_input ();
3634 if (!near_bottom_p)
3635 return;
3638 if (whole)
3640 /* Position scroll bar at rock bottom if the bottom of the
3641 buffer is visible. This avoids shrinking the thumb away
3642 to nothing if it is held at the bottom of the buffer. */
3643 if (position + portion >= whole && !draggingp)
3645 sb_page = range * (whole - position) / whole;
3646 sb_pos = range;
3648 else
3650 sb_pos = position * range / whole;
3651 sb_page = (min (portion, (whole - position)) * range) / whole;
3654 else
3656 sb_page = range;
3657 sb_pos = 0;
3660 sb_page = max (sb_page, VERTICAL_SCROLL_BAR_MIN_HANDLE);
3662 block_input ();
3664 si.cbSize = sizeof (si);
3665 si.fMask = SIF_PAGE | SIF_POS;
3666 si.nPage = sb_page;
3667 si.nPos = sb_pos;
3669 SetScrollInfo (w, SB_CTL, &si, TRUE);
3671 unblock_input ();
3675 /************************************************************************
3676 Scroll bars, general
3677 ************************************************************************/
3679 static HWND
3680 my_create_scrollbar (struct frame * f, struct scroll_bar * bar)
3682 return (HWND) SendMessage (FRAME_W32_WINDOW (f),
3683 WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
3684 (LPARAM) bar);
3687 /*#define ATTACH_THREADS*/
3689 static BOOL
3690 my_show_window (FRAME_PTR f, HWND hwnd, int how)
3692 #ifndef ATTACH_THREADS
3693 return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
3694 (WPARAM) hwnd, (LPARAM) how);
3695 #else
3696 return ShowWindow (hwnd, how);
3697 #endif
3700 static void
3701 my_set_window_pos (HWND hwnd, HWND hwndAfter,
3702 int x, int y, int cx, int cy, UINT flags)
3704 #ifndef ATTACH_THREADS
3705 WINDOWPOS pos;
3706 pos.hwndInsertAfter = hwndAfter;
3707 pos.x = x;
3708 pos.y = y;
3709 pos.cx = cx;
3710 pos.cy = cy;
3711 pos.flags = flags;
3712 SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
3713 #else
3714 SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
3715 #endif
3718 #if 0
3719 static void
3720 my_set_focus (struct frame * f, HWND hwnd)
3722 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
3723 (WPARAM) hwnd, 0);
3725 #endif
3727 static void
3728 my_set_foreground_window (HWND hwnd)
3730 SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
3734 static void
3735 my_destroy_window (struct frame * f, HWND hwnd)
3737 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
3738 (WPARAM) hwnd, 0);
3741 static void
3742 my_bring_window_to_top (HWND hwnd)
3744 SendMessage (hwnd, WM_EMACS_BRINGTOTOP, (WPARAM) hwnd, 0);
3747 /* Create a scroll bar and return the scroll bar vector for it. W is
3748 the Emacs window on which to create the scroll bar. TOP, LEFT,
3749 WIDTH and HEIGHT are the pixel coordinates and dimensions of the
3750 scroll bar. */
3752 static struct scroll_bar *
3753 x_scroll_bar_create (struct window *w, int top, int left, int width, int height)
3755 struct frame *f = XFRAME (WINDOW_FRAME (w));
3756 HWND hwnd;
3757 SCROLLINFO si;
3758 struct scroll_bar *bar
3759 = XSCROLL_BAR (Fmake_vector (make_number (VECSIZE (struct scroll_bar)), Qnil));
3760 Lisp_Object barobj;
3762 block_input ();
3764 XSETWINDOW (bar->window, w);
3765 XSETINT (bar->top, top);
3766 XSETINT (bar->left, left);
3767 XSETINT (bar->width, width);
3768 XSETINT (bar->height, height);
3769 XSETINT (bar->start, 0);
3770 XSETINT (bar->end, 0);
3771 bar->dragging = Qnil;
3772 bar->fringe_extended_p = Qnil;
3774 /* Requires geometry to be set before call to create the real window */
3776 hwnd = my_create_scrollbar (f, bar);
3778 si.cbSize = sizeof (si);
3779 si.fMask = SIF_ALL;
3780 si.nMin = 0;
3781 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3782 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3783 si.nPage = si.nMax;
3784 si.nPos = 0;
3786 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3788 SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
3790 /* Add bar to its frame's list of scroll bars. */
3791 bar->next = FRAME_SCROLL_BARS (f);
3792 bar->prev = Qnil;
3793 XSETVECTOR (barobj, bar);
3794 fset_scroll_bars (f, barobj);
3795 if (! NILP (bar->next))
3796 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3798 unblock_input ();
3800 return bar;
3804 /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
3805 nil. */
3807 static void
3808 x_scroll_bar_remove (struct scroll_bar *bar)
3810 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3812 block_input ();
3814 /* Destroy the window. */
3815 my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
3817 /* Dissociate this scroll bar from its window. */
3818 wset_vertical_scroll_bar (XWINDOW (bar->window), Qnil);
3820 unblock_input ();
3823 /* Set the handle of the vertical scroll bar for WINDOW to indicate
3824 that we are displaying PORTION characters out of a total of WHOLE
3825 characters, starting at POSITION. If WINDOW has no scroll bar,
3826 create one. */
3827 static void
3828 w32_set_vertical_scroll_bar (struct window *w,
3829 int portion, int whole, int position)
3831 struct frame *f = XFRAME (w->frame);
3832 Lisp_Object barobj;
3833 struct scroll_bar *bar;
3834 int top, height, left, sb_left, width, sb_width;
3835 int window_y, window_height;
3836 int fringe_extended_p;
3838 /* Get window dimensions. */
3839 window_box (w, -1, 0, &window_y, 0, &window_height);
3840 top = window_y;
3841 width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f);
3842 height = window_height;
3844 /* Compute the left edge of the scroll bar area. */
3845 left = WINDOW_SCROLL_BAR_AREA_X (w);
3847 /* Compute the width of the scroll bar which might be less than
3848 the width of the area reserved for the scroll bar. */
3849 if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0)
3850 sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
3851 else
3852 sb_width = width;
3854 /* Compute the left edge of the scroll bar. */
3855 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
3856 sb_left = left + (WINDOW_RIGHTMOST_P (w) ? width - sb_width : 0);
3857 else
3858 sb_left = left + (WINDOW_LEFTMOST_P (w) ? 0 : width - sb_width);
3860 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
3861 fringe_extended_p = (WINDOW_LEFTMOST_P (w)
3862 && WINDOW_LEFT_FRINGE_WIDTH (w)
3863 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3864 || WINDOW_LEFT_MARGIN_COLS (w) == 0));
3865 else
3866 fringe_extended_p = (WINDOW_RIGHTMOST_P (w)
3867 && WINDOW_RIGHT_FRINGE_WIDTH (w)
3868 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3869 || WINDOW_RIGHT_MARGIN_COLS (w) == 0));
3871 /* Does the scroll bar exist yet? */
3872 if (NILP (w->vertical_scroll_bar))
3874 HDC hdc;
3875 block_input ();
3876 if (width > 0 && height > 0)
3878 hdc = get_frame_dc (f);
3879 if (fringe_extended_p)
3880 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3881 else
3882 w32_clear_area (f, hdc, left, top, width, height);
3883 release_frame_dc (f, hdc);
3885 unblock_input ();
3887 bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
3889 else
3891 /* It may just need to be moved and resized. */
3892 HWND hwnd;
3894 bar = XSCROLL_BAR (w->vertical_scroll_bar);
3895 hwnd = SCROLL_BAR_W32_WINDOW (bar);
3897 /* If already correctly positioned, do nothing. */
3898 if ( XINT (bar->left) == sb_left
3899 && XINT (bar->top) == top
3900 && XINT (bar->width) == sb_width
3901 && XINT (bar->height) == height
3902 && !NILP (bar->fringe_extended_p) == fringe_extended_p )
3904 /* Redraw after clear_frame. */
3905 if (!my_show_window (f, hwnd, SW_NORMAL))
3906 InvalidateRect (hwnd, NULL, FALSE);
3908 else
3910 HDC hdc;
3911 SCROLLINFO si;
3913 block_input ();
3914 if (width && height)
3916 hdc = get_frame_dc (f);
3917 /* Since Windows scroll bars are smaller than the space reserved
3918 for them on the frame, we have to clear "under" them. */
3919 if (fringe_extended_p)
3920 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3921 else
3922 w32_clear_area (f, hdc, left, top, width, height);
3923 release_frame_dc (f, hdc);
3925 /* Make sure scroll bar is "visible" before moving, to ensure the
3926 area of the parent window now exposed will be refreshed. */
3927 my_show_window (f, hwnd, SW_HIDE);
3928 MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
3929 top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
3930 max (height, 1), TRUE);
3932 si.cbSize = sizeof (si);
3933 si.fMask = SIF_RANGE;
3934 si.nMin = 0;
3935 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3936 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3938 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3940 my_show_window (f, hwnd, SW_NORMAL);
3941 /* InvalidateRect (w, NULL, FALSE); */
3943 /* Remember new settings. */
3944 XSETINT (bar->left, sb_left);
3945 XSETINT (bar->top, top);
3946 XSETINT (bar->width, sb_width);
3947 XSETINT (bar->height, height);
3949 unblock_input ();
3952 bar->fringe_extended_p = fringe_extended_p ? Qt : Qnil;
3954 w32_set_scroll_bar_thumb (bar, portion, position, whole);
3955 XSETVECTOR (barobj, bar);
3956 wset_vertical_scroll_bar (w, barobj);
3960 /* The following three hooks are used when we're doing a thorough
3961 redisplay of the frame. We don't explicitly know which scroll bars
3962 are going to be deleted, because keeping track of when windows go
3963 away is a real pain - "Can you say set-window-configuration, boys
3964 and girls?" Instead, we just assert at the beginning of redisplay
3965 that *all* scroll bars are to be removed, and then save a scroll bar
3966 from the fiery pit when we actually redisplay its window. */
3968 /* Arrange for all scroll bars on FRAME to be removed at the next call
3969 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
3970 `*redeem_scroll_bar_hook' is applied to its window before the judgment. */
3972 static void
3973 w32_condemn_scroll_bars (FRAME_PTR frame)
3975 /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
3976 while (! NILP (FRAME_SCROLL_BARS (frame)))
3978 Lisp_Object bar;
3979 bar = FRAME_SCROLL_BARS (frame);
3980 fset_scroll_bars (frame, XSCROLL_BAR (bar)->next);
3981 XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
3982 XSCROLL_BAR (bar)->prev = Qnil;
3983 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
3984 XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
3985 fset_condemned_scroll_bars (frame, bar);
3990 /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
3991 Note that WINDOW isn't necessarily condemned at all. */
3993 static void
3994 w32_redeem_scroll_bar (struct window *window)
3996 struct scroll_bar *bar;
3997 Lisp_Object barobj;
3998 struct frame *f;
4000 /* We can't redeem this window's scroll bar if it doesn't have one. */
4001 if (NILP (window->vertical_scroll_bar))
4002 emacs_abort ();
4004 bar = XSCROLL_BAR (window->vertical_scroll_bar);
4006 /* Unlink it from the condemned list. */
4007 f = XFRAME (WINDOW_FRAME (window));
4008 if (NILP (bar->prev))
4010 /* If the prev pointer is nil, it must be the first in one of
4011 the lists. */
4012 if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
4013 /* It's not condemned. Everything's fine. */
4014 return;
4015 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
4016 window->vertical_scroll_bar))
4017 fset_condemned_scroll_bars (f, bar->next);
4018 else
4019 /* If its prev pointer is nil, it must be at the front of
4020 one or the other! */
4021 emacs_abort ();
4023 else
4024 XSCROLL_BAR (bar->prev)->next = bar->next;
4026 if (! NILP (bar->next))
4027 XSCROLL_BAR (bar->next)->prev = bar->prev;
4029 bar->next = FRAME_SCROLL_BARS (f);
4030 bar->prev = Qnil;
4031 XSETVECTOR (barobj, bar);
4032 fset_scroll_bars (f, barobj);
4033 if (! NILP (bar->next))
4034 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
4037 /* Remove all scroll bars on FRAME that haven't been saved since the
4038 last call to `*condemn_scroll_bars_hook'. */
4040 static void
4041 w32_judge_scroll_bars (FRAME_PTR f)
4043 Lisp_Object bar, next;
4045 bar = FRAME_CONDEMNED_SCROLL_BARS (f);
4047 /* Clear out the condemned list now so we won't try to process any
4048 more events on the hapless scroll bars. */
4049 fset_condemned_scroll_bars (f, Qnil);
4051 for (; ! NILP (bar); bar = next)
4053 struct scroll_bar *b = XSCROLL_BAR (bar);
4055 x_scroll_bar_remove (b);
4057 next = b->next;
4058 b->next = b->prev = Qnil;
4061 /* Now there should be no references to the condemned scroll bars,
4062 and they should get garbage-collected. */
4065 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
4066 is set to something other than NO_EVENT, it is enqueued.
4068 This may be called from a signal handler, so we have to ignore GC
4069 mark bits. */
4071 static int
4072 w32_scroll_bar_handle_click (struct scroll_bar *bar, W32Msg *msg,
4073 struct input_event *emacs_event)
4075 if (! WINDOWP (bar->window))
4076 emacs_abort ();
4078 emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
4079 emacs_event->code = 0;
4080 /* not really meaningful to distinguish up/down */
4081 emacs_event->modifiers = msg->dwModifiers;
4082 emacs_event->frame_or_window = bar->window;
4083 emacs_event->arg = Qnil;
4084 emacs_event->timestamp = msg->msg.time;
4087 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
4088 int y;
4089 int dragging = !NILP (bar->dragging);
4090 SCROLLINFO si;
4092 si.cbSize = sizeof (si);
4093 si.fMask = SIF_POS;
4095 GetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
4096 y = si.nPos;
4098 bar->dragging = Qnil;
4101 last_mouse_scroll_bar_pos = msg->msg.wParam;
4103 switch (LOWORD (msg->msg.wParam))
4105 case SB_LINEDOWN:
4106 emacs_event->part = scroll_bar_down_arrow;
4107 break;
4108 case SB_LINEUP:
4109 emacs_event->part = scroll_bar_up_arrow;
4110 break;
4111 case SB_PAGEUP:
4112 emacs_event->part = scroll_bar_above_handle;
4113 break;
4114 case SB_PAGEDOWN:
4115 emacs_event->part = scroll_bar_below_handle;
4116 break;
4117 case SB_TOP:
4118 emacs_event->part = scroll_bar_handle;
4119 y = 0;
4120 break;
4121 case SB_BOTTOM:
4122 emacs_event->part = scroll_bar_handle;
4123 y = top_range;
4124 break;
4125 case SB_THUMBTRACK:
4126 case SB_THUMBPOSITION:
4127 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
4128 y = HIWORD (msg->msg.wParam);
4129 bar->dragging = Qt;
4130 emacs_event->part = scroll_bar_handle;
4132 /* "Silently" update current position. */
4134 SCROLLINFO si;
4136 si.cbSize = sizeof (si);
4137 si.fMask = SIF_POS;
4138 si.nPos = y;
4139 /* Remember apparent position (we actually lag behind the real
4140 position, so don't set that directly). */
4141 last_scroll_bar_drag_pos = y;
4143 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
4145 break;
4146 case SB_ENDSCROLL:
4147 /* If this is the end of a drag sequence, then reset the scroll
4148 handle size to normal and do a final redraw. Otherwise do
4149 nothing. */
4150 if (dragging)
4152 SCROLLINFO si;
4153 int start = XINT (bar->start);
4154 int end = XINT (bar->end);
4156 si.cbSize = sizeof (si);
4157 si.fMask = SIF_PAGE | SIF_POS;
4158 si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
4159 si.nPos = last_scroll_bar_drag_pos;
4160 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
4162 /* fall through */
4163 default:
4164 emacs_event->kind = NO_EVENT;
4165 return FALSE;
4168 XSETINT (emacs_event->x, y);
4169 XSETINT (emacs_event->y, top_range);
4171 return TRUE;
4175 /* Return information to the user about the current position of the mouse
4176 on the scroll bar. */
4178 static void
4179 x_scroll_bar_report_motion (FRAME_PTR *fp, Lisp_Object *bar_window,
4180 enum scroll_bar_part *part,
4181 Lisp_Object *x, Lisp_Object *y,
4182 unsigned long *time)
4184 struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
4185 Window w = SCROLL_BAR_W32_WINDOW (bar);
4186 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
4187 int pos;
4188 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
4189 SCROLLINFO si;
4191 block_input ();
4193 *fp = f;
4194 *bar_window = bar->window;
4196 si.cbSize = sizeof (si);
4197 si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
4199 GetScrollInfo (w, SB_CTL, &si);
4200 pos = si.nPos;
4201 top_range = si.nMax - si.nPage + 1;
4203 switch (LOWORD (last_mouse_scroll_bar_pos))
4205 case SB_THUMBPOSITION:
4206 case SB_THUMBTRACK:
4207 *part = scroll_bar_handle;
4208 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
4209 pos = HIWORD (last_mouse_scroll_bar_pos);
4210 break;
4211 case SB_LINEDOWN:
4212 *part = scroll_bar_handle;
4213 pos++;
4214 break;
4215 default:
4216 *part = scroll_bar_handle;
4217 break;
4220 XSETINT (*x, pos);
4221 XSETINT (*y, top_range);
4223 f->mouse_moved = 0;
4224 last_mouse_scroll_bar = Qnil;
4226 *time = last_mouse_movement_time;
4228 unblock_input ();
4232 /* The screen has been cleared so we may have changed foreground or
4233 background colors, and the scroll bars may need to be redrawn.
4234 Clear out the scroll bars, and ask for expose events, so we can
4235 redraw them. */
4237 void
4238 x_scroll_bar_clear (FRAME_PTR f)
4240 Lisp_Object bar;
4242 /* We can have scroll bars even if this is 0,
4243 if we just turned off scroll bar mode.
4244 But in that case we should not clear them. */
4245 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
4246 for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
4247 bar = XSCROLL_BAR (bar)->next)
4249 HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
4250 HDC hdc = GetDC (window);
4251 RECT rect;
4253 /* Hide scroll bar until ready to repaint. x_scroll_bar_move
4254 arranges to refresh the scroll bar if hidden. */
4255 my_show_window (f, window, SW_HIDE);
4257 GetClientRect (window, &rect);
4258 select_palette (f, hdc);
4259 w32_clear_rect (f, hdc, &rect);
4260 deselect_palette (f, hdc);
4262 ReleaseDC (window, hdc);
4267 /* The main W32 event-reading loop - w32_read_socket. */
4269 /* Record the last 100 characters stored
4270 to help debug the loss-of-chars-during-GC problem. */
4272 static int temp_index;
4273 static short temp_buffer[100];
4275 /* Temporarily store lead byte of DBCS input sequences. */
4276 static char dbcs_lead = 0;
4278 /* Read events coming from the W32 shell.
4279 This routine is called by the SIGIO handler.
4280 We return as soon as there are no more events to be read.
4282 For an overview of how Emacs input works on MS-Windows, see the
4283 commentary before w32_msg_pump in w32fns.c.
4285 We return the number of characters stored into the buffer,
4286 thus pretending to be `read'.
4288 Some of these messages are reposted back to the message queue since the
4289 system calls the windows proc directly in a context where we cannot return
4290 the data nor can we guarantee the state we are in. So if we dispatch them
4291 we will get into an infinite loop. To prevent this from ever happening we
4292 will set a variable to indicate we are in the read_socket call and indicate
4293 which message we are processing since the windows proc gets called
4294 recursively with different messages by the system.
4297 static int
4298 w32_read_socket (struct terminal *terminal,
4299 struct input_event *hold_quit)
4301 int count = 0;
4302 int check_visibility = 0;
4303 W32Msg msg;
4304 struct frame *f;
4305 struct w32_display_info *dpyinfo = &one_w32_display_info;
4306 Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
4307 static char buf[1];
4309 block_input ();
4311 /* So people can tell when we have read the available input. */
4312 input_signal_count++;
4314 /* Process any incoming thread messages. */
4315 drain_message_queue ();
4317 /* TODO: ghostscript integration. */
4318 while (get_next_msg (&msg, FALSE))
4320 struct input_event inev;
4321 int do_help = 0;
4323 /* DebPrint (("w32_read_socket: %s time:%u\n", */
4324 /* w32_name_of_message (msg.msg.message), */
4325 /* msg.msg.time)); */
4327 EVENT_INIT (inev);
4328 inev.kind = NO_EVENT;
4329 inev.arg = Qnil;
4331 switch (msg.msg.message)
4333 case WM_EMACS_PAINT:
4334 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4336 if (f)
4338 if (msg.rect.right == msg.rect.left ||
4339 msg.rect.bottom == msg.rect.top)
4341 /* We may get paint messages even though the client
4342 area is clipped - these are not expose events. */
4343 DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
4344 SDATA (f->name)));
4346 else if (FRAME_VISIBLE_P (f) != 1)
4348 bool iconified = FRAME_ICONIFIED_P (f);
4350 /* Definitely not obscured, so mark as visible. */
4351 SET_FRAME_VISIBLE (f, 1);
4352 SET_FRAME_ICONIFIED (f, 0);
4353 SET_FRAME_GARBAGED (f);
4354 DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
4355 SDATA (f->name)));
4357 /* WM_PAINT serves as MapNotify as well, so report
4358 visibility changes properly. */
4359 if (iconified)
4361 inev.kind = DEICONIFY_EVENT;
4362 XSETFRAME (inev.frame_or_window, f);
4364 else if (!NILP (Vframe_list) && !NILP (XCDR (Vframe_list)))
4365 /* Force a redisplay sooner or later to update the
4366 frame titles in case this is the second frame. */
4367 record_asynch_buffer_change ();
4369 else
4371 HDC hdc = get_frame_dc (f);
4373 /* Erase background again for safety. */
4374 w32_clear_rect (f, hdc, &msg.rect);
4375 release_frame_dc (f, hdc);
4376 expose_frame (f,
4377 msg.rect.left,
4378 msg.rect.top,
4379 msg.rect.right - msg.rect.left,
4380 msg.rect.bottom - msg.rect.top);
4383 break;
4385 case WM_INPUTLANGCHANGE:
4386 /* Generate a language change event. */
4387 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4389 /* lParam contains the input language ID in its low 16 bits.
4390 Use it to update our record of the keyboard codepage. */
4391 w32_keyboard_codepage = codepage_for_locale ((LCID)(msg.msg.lParam
4392 & 0xffff));
4394 if (f)
4396 inev.kind = LANGUAGE_CHANGE_EVENT;
4397 XSETFRAME (inev.frame_or_window, f);
4398 inev.code = w32_keyboard_codepage;
4399 inev.modifiers = msg.msg.lParam & 0xffff;
4401 break;
4403 case WM_KEYDOWN:
4404 case WM_SYSKEYDOWN:
4405 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4407 if (f && !FRAME_ICONIFIED_P (f))
4409 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4410 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4412 clear_mouse_face (hlinfo);
4413 hlinfo->mouse_face_hidden = 1;
4416 if (temp_index == sizeof temp_buffer / sizeof (short))
4417 temp_index = 0;
4418 temp_buffer[temp_index++] = msg.msg.wParam;
4419 inev.kind = NON_ASCII_KEYSTROKE_EVENT;
4420 inev.code = msg.msg.wParam;
4421 inev.modifiers = msg.dwModifiers;
4422 XSETFRAME (inev.frame_or_window, f);
4423 inev.timestamp = msg.msg.time;
4425 break;
4427 case WM_UNICHAR:
4428 case WM_SYSCHAR:
4429 case WM_CHAR:
4430 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4432 if (f && !FRAME_ICONIFIED_P (f))
4434 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4435 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4437 clear_mouse_face (hlinfo);
4438 hlinfo->mouse_face_hidden = 1;
4441 if (temp_index == sizeof temp_buffer / sizeof (short))
4442 temp_index = 0;
4443 temp_buffer[temp_index++] = msg.msg.wParam;
4445 inev.modifiers = msg.dwModifiers;
4446 XSETFRAME (inev.frame_or_window, f);
4447 inev.timestamp = msg.msg.time;
4449 if (msg.msg.message == WM_UNICHAR)
4451 inev.code = msg.msg.wParam;
4453 else if (msg.msg.wParam < 256)
4455 wchar_t code;
4456 char dbcs[2];
4457 dbcs[0] = 0;
4458 dbcs[1] = (char) msg.msg.wParam;
4460 if (dbcs_lead)
4462 dbcs[0] = dbcs_lead;
4463 dbcs_lead = 0;
4464 if (!MultiByteToWideChar (w32_keyboard_codepage, 0,
4465 dbcs, 2, &code, 1))
4467 /* Garbage */
4468 DebPrint (("Invalid DBCS sequence: %d %d\n",
4469 dbcs[0], dbcs[1]));
4470 inev.kind = NO_EVENT;
4471 break;
4474 else if (IsDBCSLeadByteEx (w32_keyboard_codepage,
4475 (BYTE) msg.msg.wParam))
4477 dbcs_lead = (char) msg.msg.wParam;
4478 inev.kind = NO_EVENT;
4479 break;
4481 else
4483 if (!MultiByteToWideChar (w32_keyboard_codepage, 0,
4484 &dbcs[1], 1, &code, 1))
4486 /* What to do with garbage? */
4487 DebPrint (("Invalid character: %d\n", dbcs[1]));
4488 inev.kind = NO_EVENT;
4489 break;
4492 inev.code = code;
4494 else
4496 /* Windows shouldn't generate WM_CHAR events above 0xFF
4497 in non-Unicode message handlers. */
4498 DebPrint (("Non-byte WM_CHAR: %d\n", msg.msg.wParam));
4499 inev.kind = NO_EVENT;
4500 break;
4502 inev.kind = inev.code < 128 ? ASCII_KEYSTROKE_EVENT
4503 : MULTIBYTE_CHAR_KEYSTROKE_EVENT;
4505 break;
4507 case WM_APPCOMMAND:
4508 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4510 if (f && !FRAME_ICONIFIED_P (f))
4512 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4513 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4515 clear_mouse_face (hlinfo);
4516 hlinfo->mouse_face_hidden = 1;
4519 if (temp_index == sizeof temp_buffer / sizeof (short))
4520 temp_index = 0;
4521 temp_buffer[temp_index++] = msg.msg.wParam;
4522 inev.kind = MULTIMEDIA_KEY_EVENT;
4523 inev.code = GET_APPCOMMAND_LPARAM (msg.msg.lParam);
4524 inev.modifiers = msg.dwModifiers;
4525 XSETFRAME (inev.frame_or_window, f);
4526 inev.timestamp = msg.msg.time;
4528 break;
4530 case WM_MOUSEMOVE:
4531 /* Ignore non-movement. */
4533 int x = LOWORD (msg.msg.lParam);
4534 int y = HIWORD (msg.msg.lParam);
4535 if (x == last_mousemove_x && y == last_mousemove_y)
4536 break;
4537 last_mousemove_x = x;
4538 last_mousemove_y = y;
4541 previous_help_echo_string = help_echo_string;
4542 help_echo_string = Qnil;
4544 if (dpyinfo->grabbed && last_mouse_frame
4545 && FRAME_LIVE_P (last_mouse_frame))
4546 f = last_mouse_frame;
4547 else
4548 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4550 if (hlinfo->mouse_face_hidden)
4552 hlinfo->mouse_face_hidden = 0;
4553 clear_mouse_face (hlinfo);
4556 if (f)
4558 /* Generate SELECT_WINDOW_EVENTs when needed. */
4559 if (!NILP (Vmouse_autoselect_window))
4561 Lisp_Object window;
4562 int x = LOWORD (msg.msg.lParam);
4563 int y = HIWORD (msg.msg.lParam);
4565 window = window_from_coordinates (f, x, y, 0, 0);
4567 /* Window will be selected only when it is not
4568 selected now and last mouse movement event was
4569 not in it. Minibuffer window will be selected
4570 only when it is active. */
4571 if (WINDOWP (window)
4572 && !EQ (window, last_window)
4573 && !EQ (window, selected_window)
4574 /* For click-to-focus window managers
4575 create event iff we don't leave the
4576 selected frame. */
4577 && (focus_follows_mouse
4578 || (EQ (XWINDOW (window)->frame,
4579 XWINDOW (selected_window)->frame))))
4581 inev.kind = SELECT_WINDOW_EVENT;
4582 inev.frame_or_window = window;
4585 last_window = window;
4587 if (!note_mouse_movement (f, &msg.msg))
4588 help_echo_string = previous_help_echo_string;
4590 else
4592 /* If we move outside the frame, then we're
4593 certainly no longer on any text in the frame. */
4594 clear_mouse_face (hlinfo);
4597 /* If the contents of the global variable help_echo_string
4598 has changed, generate a HELP_EVENT. */
4599 #if 0 /* The below is an invalid comparison when CHECK_LISP_OBJECT_TYPE.
4600 But it was originally changed to this to fix a bug, so I have
4601 not removed it completely in case the bug is still there. */
4602 if (help_echo_string != previous_help_echo_string ||
4603 (!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
4604 #else /* This is what xterm.c does. */
4605 if (!NILP (help_echo_string)
4606 || !NILP (previous_help_echo_string))
4607 do_help = 1;
4608 #endif
4609 break;
4611 case WM_LBUTTONDOWN:
4612 case WM_LBUTTONUP:
4613 case WM_MBUTTONDOWN:
4614 case WM_MBUTTONUP:
4615 case WM_RBUTTONDOWN:
4616 case WM_RBUTTONUP:
4617 case WM_XBUTTONDOWN:
4618 case WM_XBUTTONUP:
4620 /* If we decide we want to generate an event to be seen
4621 by the rest of Emacs, we put it here. */
4622 int tool_bar_p = 0;
4623 int button;
4624 int up;
4626 if (dpyinfo->grabbed && last_mouse_frame
4627 && FRAME_LIVE_P (last_mouse_frame))
4628 f = last_mouse_frame;
4629 else
4630 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4632 if (f)
4634 construct_mouse_click (&inev, &msg, f);
4636 /* Is this in the tool-bar? */
4637 if (WINDOWP (f->tool_bar_window)
4638 && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
4640 Lisp_Object window;
4641 int x = XFASTINT (inev.x);
4642 int y = XFASTINT (inev.y);
4644 window = window_from_coordinates (f, x, y, 0, 1);
4646 if (EQ (window, f->tool_bar_window))
4648 w32_handle_tool_bar_click (f, &inev);
4649 tool_bar_p = 1;
4653 if (tool_bar_p
4654 || (dpyinfo->w32_focus_frame
4655 && f != dpyinfo->w32_focus_frame))
4656 inev.kind = NO_EVENT;
4659 parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
4660 &button, &up);
4662 if (up)
4664 dpyinfo->grabbed &= ~ (1 << button);
4666 else
4668 dpyinfo->grabbed |= (1 << button);
4669 last_mouse_frame = f;
4670 /* Ignore any mouse motion that happened
4671 before this event; any subsequent mouse-movement
4672 Emacs events should reflect only motion after
4673 the ButtonPress. */
4674 if (f != 0)
4675 f->mouse_moved = 0;
4677 if (!tool_bar_p)
4678 last_tool_bar_item = -1;
4680 break;
4683 case WM_MOUSEWHEEL:
4684 case WM_MOUSEHWHEEL:
4686 if (dpyinfo->grabbed && last_mouse_frame
4687 && FRAME_LIVE_P (last_mouse_frame))
4688 f = last_mouse_frame;
4689 else
4690 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4692 if (f)
4695 if (!dpyinfo->w32_focus_frame
4696 || f == dpyinfo->w32_focus_frame)
4698 /* Emit an Emacs wheel-up/down event. */
4699 construct_mouse_wheel (&inev, &msg, f);
4701 /* Ignore any mouse motion that happened before this
4702 event; any subsequent mouse-movement Emacs events
4703 should reflect only motion after the
4704 ButtonPress. */
4705 f->mouse_moved = 0;
4707 last_mouse_frame = f;
4708 last_tool_bar_item = -1;
4710 break;
4712 case WM_DROPFILES:
4713 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4715 if (f)
4716 construct_drag_n_drop (&inev, &msg, f);
4717 break;
4719 case WM_VSCROLL:
4721 struct scroll_bar *bar =
4722 x_window_to_scroll_bar ((HWND)msg.msg.lParam);
4724 if (bar)
4725 w32_scroll_bar_handle_click (bar, &msg, &inev);
4726 break;
4729 case WM_WINDOWPOSCHANGED:
4730 case WM_ACTIVATE:
4731 case WM_ACTIVATEAPP:
4732 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4733 if (f)
4735 /* Run the full-screen hook function also when we are
4736 being activated, to actually install the required
4737 size in effect, if the WAIT flag is set. This is
4738 because when the hook is run from x_set_fullscreen,
4739 the frame might not yet be visible, if that call is a
4740 result of make-frame, and in that case the hook just
4741 sets the WAIT flag. */
4742 if ((msg.msg.message == WM_WINDOWPOSCHANGED || msg.msg.wParam)
4743 && (f->want_fullscreen & FULLSCREEN_WAIT))
4744 w32fullscreen_hook (f);
4745 x_check_fullscreen (f);
4747 check_visibility = 1;
4748 break;
4750 case WM_MOVE:
4751 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4753 if (f && !FRAME_ICONIFIED_P (f))
4755 int x, y;
4757 x_real_positions (f, &x, &y);
4758 f->left_pos = x;
4759 f->top_pos = y;
4762 check_visibility = 1;
4763 break;
4765 case WM_SHOWWINDOW:
4766 /* wParam non-zero means Window is about to be shown, 0 means
4767 about to be hidden. */
4768 /* Redo the mouse-highlight after the tooltip has gone. */
4769 if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
4771 tip_window = NULL;
4772 redo_mouse_highlight ();
4775 /* If window has been obscured or exposed by another window
4776 being maximized or minimized/restored, then recheck
4777 visibility of all frames. Direct changes to our own
4778 windows get handled by WM_SIZE. */
4779 #if 0
4780 if (msg.msg.lParam != 0)
4781 check_visibility = 1;
4782 else
4784 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4785 f->async_visible = msg.msg.wParam;
4787 #endif
4789 check_visibility = 1;
4790 break;
4792 case WM_SIZE:
4793 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4795 /* Inform lisp of whether frame has been iconified etc. */
4796 if (f)
4798 switch (msg.msg.wParam)
4800 case SIZE_MINIMIZED:
4801 SET_FRAME_VISIBLE (f, 0);
4802 SET_FRAME_ICONIFIED (f, 1);
4804 inev.kind = ICONIFY_EVENT;
4805 XSETFRAME (inev.frame_or_window, f);
4806 break;
4808 case SIZE_MAXIMIZED:
4809 case SIZE_RESTORED:
4811 bool iconified = FRAME_ICONIFIED_P (f);
4813 SET_FRAME_VISIBLE (f, 1);
4814 SET_FRAME_ICONIFIED (f, 0);
4816 /* wait_reading_process_output will notice this
4817 and update the frame's display structures. */
4818 SET_FRAME_GARBAGED (f);
4820 if (iconified)
4822 int x, y;
4824 /* Reset top and left positions of the Window
4825 here since Windows sends a WM_MOVE message
4826 BEFORE telling us the Window is minimized
4827 when the Window is iconified, with 3000,3000
4828 as the co-ords. */
4829 x_real_positions (f, &x, &y);
4830 f->left_pos = x;
4831 f->top_pos = y;
4833 inev.kind = DEICONIFY_EVENT;
4834 XSETFRAME (inev.frame_or_window, f);
4836 else if (! NILP (Vframe_list)
4837 && ! NILP (XCDR (Vframe_list)))
4838 /* Force a redisplay sooner or later
4839 to update the frame titles
4840 in case this is the second frame. */
4841 record_asynch_buffer_change ();
4843 break;
4847 if (f && !FRAME_ICONIFIED_P (f) && msg.msg.wParam != SIZE_MINIMIZED)
4849 RECT rect;
4850 int rows;
4851 int columns;
4852 int width;
4853 int height;
4855 GetClientRect (msg.msg.hwnd, &rect);
4857 height = rect.bottom - rect.top;
4858 width = rect.right - rect.left;
4860 rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
4861 columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
4863 /* TODO: Clip size to the screen dimensions. */
4865 /* Even if the number of character rows and columns has
4866 not changed, the font size may have changed, so we need
4867 to check the pixel dimensions as well. */
4869 if (columns != FRAME_COLS (f)
4870 || rows != FRAME_LINES (f)
4871 || width != FRAME_PIXEL_WIDTH (f)
4872 || height != FRAME_PIXEL_HEIGHT (f))
4874 change_frame_size (f, rows, columns, 0, 1, 0);
4875 SET_FRAME_GARBAGED (f);
4876 cancel_mouse_face (f);
4877 FRAME_PIXEL_WIDTH (f) = width;
4878 FRAME_PIXEL_HEIGHT (f) = height;
4879 f->win_gravity = NorthWestGravity;
4883 check_visibility = 1;
4884 break;
4886 case WM_MOUSELEAVE:
4887 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4888 if (f)
4890 if (f == hlinfo->mouse_face_mouse_frame)
4892 /* If we move outside the frame, then we're
4893 certainly no longer on any text in the frame. */
4894 clear_mouse_face (hlinfo);
4895 hlinfo->mouse_face_mouse_frame = 0;
4898 /* Generate a nil HELP_EVENT to cancel a help-echo.
4899 Do it only if there's something to cancel.
4900 Otherwise, the startup message is cleared when
4901 the mouse leaves the frame. */
4902 if (any_help_event_p)
4903 do_help = -1;
4905 break;
4907 case WM_SETFOCUS:
4908 w32_detect_focus_change (dpyinfo, &msg, &inev);
4910 dpyinfo->grabbed = 0;
4911 check_visibility = 1;
4912 break;
4914 case WM_KILLFOCUS:
4915 f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
4917 if (f)
4919 if (f == dpyinfo->w32_focus_event_frame)
4920 dpyinfo->w32_focus_event_frame = 0;
4922 if (f == dpyinfo->w32_focus_frame)
4923 x_new_focus_frame (dpyinfo, 0);
4925 if (f == hlinfo->mouse_face_mouse_frame)
4927 /* If we move outside the frame, then we're
4928 certainly no longer on any text in the frame. */
4929 clear_mouse_face (hlinfo);
4930 hlinfo->mouse_face_mouse_frame = 0;
4933 /* Generate a nil HELP_EVENT to cancel a help-echo.
4934 Do it only if there's something to cancel.
4935 Otherwise, the startup message is cleared when
4936 the mouse leaves the frame. */
4937 if (any_help_event_p)
4938 do_help = -1;
4941 dpyinfo->grabbed = 0;
4942 check_visibility = 1;
4943 break;
4945 case WM_CLOSE:
4946 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4948 if (f)
4950 inev.kind = DELETE_WINDOW_EVENT;
4951 XSETFRAME (inev.frame_or_window, f);
4953 break;
4955 case WM_INITMENU:
4956 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4958 if (f)
4960 inev.kind = MENU_BAR_ACTIVATE_EVENT;
4961 XSETFRAME (inev.frame_or_window, f);
4963 break;
4965 case WM_COMMAND:
4966 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4968 if (f)
4970 extern void menubar_selection_callback
4971 (FRAME_PTR f, void * client_data);
4972 menubar_selection_callback (f, (void *)msg.msg.wParam);
4975 check_visibility = 1;
4976 break;
4978 case WM_DISPLAYCHANGE:
4979 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4981 if (f)
4983 dpyinfo->n_cbits = msg.msg.wParam;
4984 DebPrint (("display change: %d %d\n",
4985 (short) LOWORD (msg.msg.lParam),
4986 (short) HIWORD (msg.msg.lParam)));
4989 check_visibility = 1;
4990 break;
4992 #if HAVE_W32NOTIFY
4993 case WM_EMACS_FILENOTIFY:
4994 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4995 if (f)
4996 queue_notifications (&inev, &msg, f, &count);
4997 break;
4998 #endif
5000 default:
5001 /* Check for messages registered at runtime. */
5002 if (msg.msg.message == msh_mousewheel)
5004 /* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
5005 msg.msg.message = WM_MOUSEWHEEL;
5006 prepend_msg (&msg);
5008 break;
5011 if (inev.kind != NO_EVENT)
5013 kbd_buffer_store_event_hold (&inev, hold_quit);
5014 count++;
5017 if (do_help
5018 && !(hold_quit && hold_quit->kind != NO_EVENT))
5020 Lisp_Object frame;
5022 if (f)
5023 XSETFRAME (frame, f);
5024 else
5025 frame = Qnil;
5027 if (do_help > 0)
5029 if (NILP (help_echo_string))
5031 help_echo_object = help_echo_window = Qnil;
5032 help_echo_pos = -1;
5035 any_help_event_p = 1;
5036 gen_help_event (help_echo_string, frame, help_echo_window,
5037 help_echo_object, help_echo_pos);
5039 else
5041 help_echo_string = Qnil;
5042 gen_help_event (Qnil, frame, Qnil, Qnil, 0);
5044 count++;
5048 /* If the focus was just given to an autoraising frame,
5049 raise it now. */
5050 /* ??? This ought to be able to handle more than one such frame. */
5051 if (pending_autoraise_frame)
5053 x_raise_frame (pending_autoraise_frame);
5054 pending_autoraise_frame = 0;
5057 /* Check which frames are still visible, if we have enqueued any user
5058 events or been notified of events that may affect visibility. We
5059 do this here because there doesn't seem to be any direct
5060 notification from Windows that the visibility of a window has
5061 changed (at least, not in all cases). */
5062 if (count > 0 || check_visibility)
5064 Lisp_Object tail, frame;
5066 FOR_EACH_FRAME (tail, frame)
5068 FRAME_PTR f = XFRAME (frame);
5069 /* The tooltip has been drawn already. Avoid the
5070 SET_FRAME_GARBAGED below. */
5071 if (EQ (frame, tip_frame))
5072 continue;
5074 /* Check "visible" frames and mark each as obscured or not.
5075 Note that visible is nonzero for unobscured and obscured
5076 frames, but zero for hidden and iconified frames. */
5077 if (FRAME_W32_P (f) && FRAME_VISIBLE_P (f))
5079 RECT clipbox;
5080 HDC hdc;
5081 bool obscured;
5083 enter_crit ();
5084 /* Query clipping rectangle for the entire window area
5085 (GetWindowDC), not just the client portion (GetDC).
5086 Otherwise, the scrollbars and menubar aren't counted as
5087 part of the visible area of the frame, and we may think
5088 the frame is obscured when really a scrollbar is still
5089 visible and gets WM_PAINT messages above. */
5090 hdc = GetWindowDC (FRAME_W32_WINDOW (f));
5091 GetClipBox (hdc, &clipbox);
5092 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
5093 leave_crit ();
5095 obscured = FRAME_OBSCURED_P (f);
5097 if (clipbox.right == clipbox.left || clipbox.bottom == clipbox.top)
5099 /* Frame has become completely obscured so mark as such (we
5100 do this by setting visible to 2 so that FRAME_VISIBLE_P
5101 is still true, but redisplay will skip it). */
5102 SET_FRAME_VISIBLE (f, 2);
5104 if (!obscured)
5105 DebPrint (("frame %p (%s) obscured\n", f, SDATA (f->name)));
5107 else
5109 /* Frame is not obscured, so mark it as such. */
5110 SET_FRAME_VISIBLE (f, 1);
5112 if (obscured)
5114 SET_FRAME_GARBAGED (f);
5115 DebPrint (("obscured frame %p (%s) found to be visible\n",
5116 f, SDATA (f->name)));
5118 /* Force a redisplay sooner or later. */
5119 record_asynch_buffer_change ();
5126 unblock_input ();
5127 return count;
5132 /***********************************************************************
5133 Text Cursor
5134 ***********************************************************************/
5136 /* Set clipping for output in glyph row ROW. W is the window in which
5137 we operate. GC is the graphics context to set clipping in.
5139 ROW may be a text row or, e.g., a mode line. Text rows must be
5140 clipped to the interior of the window dedicated to text display,
5141 mode lines must be clipped to the whole window. */
5143 static void
5144 w32_clip_to_row (struct window *w, struct glyph_row *row, int area, HDC hdc)
5146 RECT clip_rect;
5147 int window_x, window_y, window_width;
5149 window_box (w, area, &window_x, &window_y, &window_width, 0);
5151 clip_rect.left = window_x;
5152 clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
5153 clip_rect.top = max (clip_rect.top, window_y);
5154 clip_rect.right = clip_rect.left + window_width;
5155 clip_rect.bottom = clip_rect.top + row->visible_height;
5157 w32_set_clip_rectangle (hdc, &clip_rect);
5161 /* Draw a hollow box cursor on window W in glyph row ROW. */
5163 static void
5164 x_draw_hollow_cursor (struct window *w, struct glyph_row *row)
5166 struct frame *f = XFRAME (WINDOW_FRAME (w));
5167 HDC hdc;
5168 RECT rect;
5169 int left, top, h;
5170 struct glyph *cursor_glyph;
5171 HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
5173 /* Get the glyph the cursor is on. If we can't tell because
5174 the current matrix is invalid or such, give up. */
5175 cursor_glyph = get_phys_cursor_glyph (w);
5176 if (cursor_glyph == NULL)
5177 return;
5179 /* Compute frame-relative coordinates for phys cursor. */
5180 get_phys_cursor_geometry (w, row, cursor_glyph, &left, &top, &h);
5181 rect.left = left;
5182 rect.top = top;
5183 rect.bottom = rect.top + h;
5184 rect.right = rect.left + w->phys_cursor_width;
5186 hdc = get_frame_dc (f);
5187 /* Set clipping, draw the rectangle, and reset clipping again. */
5188 w32_clip_to_row (w, row, TEXT_AREA, hdc);
5189 FrameRect (hdc, &rect, hb);
5190 DeleteObject (hb);
5191 w32_set_clip_rectangle (hdc, NULL);
5192 release_frame_dc (f, hdc);
5196 /* Draw a bar cursor on window W in glyph row ROW.
5198 Implementation note: One would like to draw a bar cursor with an
5199 angle equal to the one given by the font property XA_ITALIC_ANGLE.
5200 Unfortunately, I didn't find a font yet that has this property set.
5201 --gerd. */
5203 static void
5204 x_draw_bar_cursor (struct window *w, struct glyph_row *row,
5205 int width, enum text_cursor_kinds kind)
5207 struct frame *f = XFRAME (w->frame);
5208 struct glyph *cursor_glyph;
5210 /* If cursor is out of bounds, don't draw garbage. This can happen
5211 in mini-buffer windows when switching between echo area glyphs
5212 and mini-buffer. */
5213 cursor_glyph = get_phys_cursor_glyph (w);
5214 if (cursor_glyph == NULL)
5215 return;
5217 /* If on an image, draw like a normal cursor. That's usually better
5218 visible than drawing a bar, esp. if the image is large so that
5219 the bar might not be in the window. */
5220 if (cursor_glyph->type == IMAGE_GLYPH)
5222 struct glyph_row *row;
5223 row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
5224 draw_phys_cursor_glyph (w, row, DRAW_CURSOR);
5226 else
5228 COLORREF cursor_color = f->output_data.w32->cursor_pixel;
5229 struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
5230 int x;
5231 HDC hdc;
5233 /* If the glyph's background equals the color we normally draw
5234 the bar cursor in, the bar cursor in its normal color is
5235 invisible. Use the glyph's foreground color instead in this
5236 case, on the assumption that the glyph's colors are chosen so
5237 that the glyph is legible. */
5238 if (face->background == cursor_color)
5239 cursor_color = face->foreground;
5241 x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5243 hdc = get_frame_dc (f);
5244 w32_clip_to_row (w, row, TEXT_AREA, hdc);
5246 if (kind == BAR_CURSOR)
5248 if (width < 0)
5249 width = FRAME_CURSOR_WIDTH (f);
5250 width = min (cursor_glyph->pixel_width, width);
5252 w->phys_cursor_width = width;
5254 /* If the character under cursor is R2L, draw the bar cursor
5255 on the right of its glyph, rather than on the left. */
5256 if ((cursor_glyph->resolved_level & 1) != 0)
5257 x += cursor_glyph->pixel_width - width;
5259 w32_fill_area (f, hdc, cursor_color, x,
5260 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
5261 width, row->height);
5263 else
5265 int dummy_x, dummy_y, dummy_h;
5267 if (width < 0)
5268 width = row->height;
5270 width = min (row->height, width);
5272 get_phys_cursor_geometry (w, row, cursor_glyph, &dummy_x,
5273 &dummy_y, &dummy_h);
5274 w32_fill_area (f, hdc, cursor_color, x,
5275 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
5276 row->height - width),
5277 w->phys_cursor_width, width);
5280 w32_set_clip_rectangle (hdc, NULL);
5281 release_frame_dc (f, hdc);
5286 /* RIF: Define cursor CURSOR on frame F. */
5288 static void
5289 w32_define_frame_cursor (struct frame *f, Cursor cursor)
5291 w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
5295 /* RIF: Clear area on frame F. */
5297 static void
5298 w32_clear_frame_area (struct frame *f, int x, int y, int width, int height)
5300 HDC hdc;
5302 hdc = get_frame_dc (f);
5303 w32_clear_area (f, hdc, x, y, width, height);
5304 release_frame_dc (f, hdc);
5307 /* RIF: Draw or clear cursor on window W. */
5309 static void
5310 w32_draw_window_cursor (struct window *w, struct glyph_row *glyph_row,
5311 int x, int y, int cursor_type, int cursor_width,
5312 int on_p, int active_p)
5314 if (on_p)
5316 /* If the user wants to use the system caret, make sure our own
5317 cursor remains invisible. */
5318 if (w32_use_visible_system_caret)
5320 /* Call to erase_phys_cursor here seems to use the
5321 wrong values of w->phys_cursor, as they have been
5322 overwritten before this function was called. */
5323 if (w->phys_cursor_type != NO_CURSOR)
5324 erase_phys_cursor (w);
5326 cursor_type = w->phys_cursor_type = NO_CURSOR;
5327 w->phys_cursor_width = -1;
5329 else
5331 w->phys_cursor_type = cursor_type;
5334 w->phys_cursor_on_p = 1;
5336 /* If this is the active cursor, we need to track it with the
5337 system caret, so third party software like screen magnifiers
5338 and speech synthesizers can follow the cursor. */
5339 if (active_p)
5341 struct frame *f = XFRAME (WINDOW_FRAME (w));
5342 HWND hwnd = FRAME_W32_WINDOW (f);
5344 w32_system_caret_x
5345 = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5346 w32_system_caret_y
5347 = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
5348 + glyph_row->ascent - w->phys_cursor_ascent);
5349 w32_system_caret_window = w;
5350 w32_system_caret_hdr_height = WINDOW_HEADER_LINE_HEIGHT (w);
5351 w32_system_caret_mode_height = WINDOW_MODE_LINE_HEIGHT (w);
5353 PostMessage (hwnd, WM_IME_STARTCOMPOSITION, 0, 0);
5355 /* If the size of the active cursor changed, destroy the old
5356 system caret. */
5357 if (w32_system_caret_hwnd
5358 && (w32_system_caret_height != w->phys_cursor_height))
5359 PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
5361 w32_system_caret_height = w->phys_cursor_height;
5363 /* Move the system caret. */
5364 PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
5367 if (glyph_row->exact_window_width_line_p
5368 && (glyph_row->reversed_p
5369 ? (w->phys_cursor.hpos < 0)
5370 : (w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])))
5372 glyph_row->cursor_in_fringe_p = 1;
5373 draw_fringe_bitmap (w, glyph_row, glyph_row->reversed_p);
5374 return;
5377 switch (cursor_type)
5379 case HOLLOW_BOX_CURSOR:
5380 x_draw_hollow_cursor (w, glyph_row);
5381 break;
5383 case FILLED_BOX_CURSOR:
5384 draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
5385 break;
5387 case BAR_CURSOR:
5388 x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
5389 break;
5391 case HBAR_CURSOR:
5392 x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
5393 break;
5395 case NO_CURSOR:
5396 w->phys_cursor_width = 0;
5397 break;
5399 default:
5400 emacs_abort ();
5407 /* Icons. */
5410 x_bitmap_icon (struct frame *f, Lisp_Object icon)
5412 HANDLE main_icon;
5413 HANDLE small_icon = NULL;
5415 if (FRAME_W32_WINDOW (f) == 0)
5416 return 1;
5418 if (NILP (icon))
5419 main_icon = LoadIcon (hinst, EMACS_CLASS);
5420 else if (STRINGP (icon))
5422 /* Load the main icon from the named file. */
5423 main_icon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
5424 LR_DEFAULTSIZE | LR_LOADFROMFILE);
5425 /* Try to load a small icon to go with it. */
5426 small_icon = LoadImage (NULL, (LPCSTR) SDATA (icon), IMAGE_ICON,
5427 GetSystemMetrics (SM_CXSMICON),
5428 GetSystemMetrics (SM_CYSMICON),
5429 LR_LOADFROMFILE);
5431 else if (SYMBOLP (icon))
5433 LPCTSTR name;
5435 if (EQ (icon, intern ("application")))
5436 name = (LPCTSTR) IDI_APPLICATION;
5437 else if (EQ (icon, intern ("hand")))
5438 name = (LPCTSTR) IDI_HAND;
5439 else if (EQ (icon, intern ("question")))
5440 name = (LPCTSTR) IDI_QUESTION;
5441 else if (EQ (icon, intern ("exclamation")))
5442 name = (LPCTSTR) IDI_EXCLAMATION;
5443 else if (EQ (icon, intern ("asterisk")))
5444 name = (LPCTSTR) IDI_ASTERISK;
5445 else if (EQ (icon, intern ("winlogo")))
5446 name = (LPCTSTR) IDI_WINLOGO;
5447 else
5448 return 1;
5450 main_icon = LoadIcon (NULL, name);
5452 else
5453 return 1;
5455 if (main_icon == NULL)
5456 return 1;
5458 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
5459 (LPARAM) main_icon);
5461 /* If there is a small icon that goes with it, set that too. */
5462 if (small_icon)
5463 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_SMALL,
5464 (LPARAM) small_icon);
5466 return 0;
5470 /************************************************************************
5471 Handling X errors
5472 ************************************************************************/
5474 /* Display Error Handling functions not used on W32. Listing them here
5475 helps diff stay in step when comparing w32term.c with xterm.c.
5477 x_error_catcher (display, error)
5478 x_catch_errors (dpy)
5479 x_catch_errors_unwind (old_val)
5480 x_check_errors (dpy, format)
5481 x_fully_uncatch_errors ()
5482 x_had_errors_p (dpy)
5483 x_clear_errors (dpy)
5484 x_uncatch_errors (dpy, count)
5485 x_trace_wire ()
5486 x_connection_signal (signalnum)
5487 x_connection_closed (dpy, error_message)
5488 x_error_quitter (display, error)
5489 x_error_handler (display, error)
5490 x_io_error_quitter (display)
5495 /* Changing the font of the frame. */
5497 Lisp_Object
5498 x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
5500 struct font *font = XFONT_OBJECT (font_object);
5502 if (fontset < 0)
5503 fontset = fontset_from_font (font_object);
5504 FRAME_FONTSET (f) = fontset;
5505 if (FRAME_FONT (f) == font)
5506 /* This font is already set in frame F. There's nothing more to
5507 do. */
5508 return font_object;
5510 FRAME_FONT (f) = font;
5511 FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
5512 FRAME_COLUMN_WIDTH (f) = font->average_width;
5513 FRAME_LINE_HEIGHT (f) = font->height;
5515 compute_fringe_widths (f, 1);
5517 /* Compute the scroll bar width in character columns. */
5518 if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
5520 int wid = FRAME_COLUMN_WIDTH (f);
5521 FRAME_CONFIG_SCROLL_BAR_COLS (f)
5522 = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid - 1) / wid;
5524 else
5526 int wid = FRAME_COLUMN_WIDTH (f);
5527 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
5530 /* Now make the frame display the given font. */
5531 if (FRAME_X_WINDOW (f) != 0)
5533 /* Don't change the size of a tip frame; there's no point in
5534 doing it because it's done in Fx_show_tip, and it leads to
5535 problems because the tip frame has no widget. */
5536 if (NILP (tip_frame) || XFRAME (tip_frame) != f)
5537 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
5540 /* X version sets font of input methods here also. */
5542 return font_object;
5546 /***********************************************************************
5547 TODO: W32 Input Methods
5548 ***********************************************************************/
5549 /* Listing missing functions from xterm.c helps diff stay in step.
5551 xim_destroy_callback (xim, client_data, call_data)
5552 xim_open_dpy (dpyinfo, resource_name)
5553 struct xim_inst_t
5554 xim_instantiate_callback (display, client_data, call_data)
5555 xim_initialize (dpyinfo, resource_name)
5556 xim_close_dpy (dpyinfo)
5561 /* Calculate the absolute position in frame F
5562 from its current recorded position values and gravity. */
5564 void
5565 x_calc_absolute_position (struct frame *f)
5567 int flags = f->size_hint_flags;
5569 /* The sum of the widths of the frame's left and right borders, and
5570 the sum of the heights of the frame's top and bottom borders (in
5571 pixels) drawn by Windows. */
5572 unsigned int left_right_borders_width, top_bottom_borders_height;
5574 /* Try to get the actual values of these two variables. We compute
5575 the border width (height) by subtracting the width (height) of
5576 the frame's client area from the width (height) of the frame's
5577 entire window. */
5578 WINDOWPLACEMENT wp = { 0 };
5579 RECT client_rect = { 0 };
5581 if (GetWindowPlacement (FRAME_W32_WINDOW (f), &wp)
5582 && GetClientRect (FRAME_W32_WINDOW (f), &client_rect))
5584 left_right_borders_width =
5585 (wp.rcNormalPosition.right - wp.rcNormalPosition.left) -
5586 (client_rect.right - client_rect.left);
5588 top_bottom_borders_height =
5589 (wp.rcNormalPosition.bottom - wp.rcNormalPosition.top) -
5590 (client_rect.bottom - client_rect.top);
5592 else
5594 /* Use sensible default values. */
5595 left_right_borders_width = 8;
5596 top_bottom_borders_height = 32;
5599 /* Treat negative positions as relative to the rightmost bottommost
5600 position that fits on the screen. */
5601 if (flags & XNegative)
5602 f->left_pos = (x_display_pixel_width (FRAME_W32_DISPLAY_INFO (f))
5603 - FRAME_PIXEL_WIDTH (f)
5604 + f->left_pos
5605 - (left_right_borders_width - 1));
5607 if (flags & YNegative)
5608 f->top_pos = (x_display_pixel_height (FRAME_W32_DISPLAY_INFO (f))
5609 - FRAME_PIXEL_HEIGHT (f)
5610 + f->top_pos
5611 - (top_bottom_borders_height - 1));
5613 /* The left_pos and top_pos are now relative to the top and left
5614 screen edges, so the flags should correspond. */
5615 f->size_hint_flags &= ~ (XNegative | YNegative);
5618 /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
5619 to really change the position, and 0 when calling from
5620 x_make_frame_visible (in that case, XOFF and YOFF are the current
5621 position values). It is -1 when calling from x_set_frame_parameters,
5622 which means, do adjust for borders but don't change the gravity. */
5624 void
5625 x_set_offset (struct frame *f, register int xoff, register int yoff,
5626 int change_gravity)
5628 int modified_top, modified_left;
5630 if (change_gravity > 0)
5632 f->top_pos = yoff;
5633 f->left_pos = xoff;
5634 f->size_hint_flags &= ~ (XNegative | YNegative);
5635 if (xoff < 0)
5636 f->size_hint_flags |= XNegative;
5637 if (yoff < 0)
5638 f->size_hint_flags |= YNegative;
5639 f->win_gravity = NorthWestGravity;
5641 x_calc_absolute_position (f);
5643 block_input ();
5644 x_wm_set_size_hint (f, (long) 0, 0);
5646 modified_left = f->left_pos;
5647 modified_top = f->top_pos;
5649 my_set_window_pos (FRAME_W32_WINDOW (f),
5650 NULL,
5651 modified_left, modified_top,
5652 0, 0,
5653 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
5654 unblock_input ();
5658 /* Check if we need to resize the frame due to a fullscreen request.
5659 If so needed, resize the frame. */
5660 static void
5661 x_check_fullscreen (struct frame *f)
5663 if (f->want_fullscreen & FULLSCREEN_BOTH)
5665 int width, height, ign;
5667 x_real_positions (f, &f->left_pos, &f->top_pos);
5669 x_fullscreen_adjust (f, &width, &height, &ign, &ign);
5671 /* We do not need to move the window, it shall be taken care of
5672 when setting WM manager hints. */
5673 if (FRAME_COLS (f) != width || FRAME_LINES (f) != height)
5675 change_frame_size (f, height, width, 0, 1, 0);
5676 SET_FRAME_GARBAGED (f);
5677 cancel_mouse_face (f);
5679 /* Wait for the change of frame size to occur. */
5680 f->want_fullscreen |= FULLSCREEN_WAIT;
5685 static void
5686 w32fullscreen_hook (FRAME_PTR f)
5688 if (FRAME_VISIBLE_P (f))
5690 HWND hwnd = FRAME_W32_WINDOW(f);
5691 DWORD dwStyle = GetWindowLong (hwnd, GWL_STYLE);
5692 RECT rect;
5694 block_input();
5695 f->want_fullscreen &= ~FULLSCREEN_WAIT;
5697 if (FRAME_PREV_FSMODE (f) == FULLSCREEN_NONE)
5698 GetWindowPlacement (hwnd, &FRAME_NORMAL_PLACEMENT (f));
5700 if (FRAME_PREV_FSMODE (f) == FULLSCREEN_BOTH)
5702 SetWindowLong (hwnd, GWL_STYLE, dwStyle | WS_OVERLAPPEDWINDOW);
5703 SetWindowPos (hwnd, NULL, 0, 0, 0, 0,
5704 SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
5705 SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
5708 w32_fullscreen_rect (hwnd, f->want_fullscreen,
5709 FRAME_NORMAL_PLACEMENT (f).rcNormalPosition, &rect);
5710 FRAME_PREV_FSMODE (f) = f->want_fullscreen;
5711 if (f->want_fullscreen == FULLSCREEN_BOTH)
5713 SetWindowLong (hwnd, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
5714 SetWindowPos (hwnd, HWND_TOP, rect.left, rect.top,
5715 rect.right - rect.left, rect.bottom - rect.top,
5716 SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
5718 else
5720 SetWindowPos (hwnd, HWND_TOP, rect.left, rect.top,
5721 rect.right - rect.left, rect.bottom - rect.top, 0);
5724 f->want_fullscreen = FULLSCREEN_NONE;
5725 unblock_input ();
5727 else
5728 f->want_fullscreen |= FULLSCREEN_WAIT;
5731 /* Call this to change the size of frame F's x-window.
5732 If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
5733 for this size change and subsequent size changes.
5734 Otherwise we leave the window gravity unchanged. */
5736 void
5737 x_set_window_size (struct frame *f, int change_gravity, int cols, int rows)
5739 int pixelwidth, pixelheight;
5741 block_input ();
5743 check_frame_size (f, &rows, &cols);
5744 f->scroll_bar_actual_width
5745 = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f);
5747 compute_fringe_widths (f, 0);
5749 pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols);
5750 pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
5752 f->win_gravity = NorthWestGravity;
5753 x_wm_set_size_hint (f, (long) 0, 0);
5756 RECT rect;
5758 rect.left = rect.top = 0;
5759 rect.right = pixelwidth;
5760 rect.bottom = pixelheight;
5762 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
5763 FRAME_EXTERNAL_MENU_BAR (f));
5765 my_set_window_pos (FRAME_W32_WINDOW (f),
5766 NULL,
5767 0, 0,
5768 rect.right - rect.left,
5769 rect.bottom - rect.top,
5770 SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
5773 #if 0
5774 /* The following mirrors what is done in xterm.c. It appears to be
5775 for informing lisp of the new size immediately, while the actual
5776 resize will happen asynchronously. But on Windows, the menu bar
5777 automatically wraps when the frame is too narrow to contain it,
5778 and that causes any calculations made here to come out wrong. The
5779 end is some nasty buggy behavior, including the potential loss
5780 of the minibuffer.
5782 Disabling this code is either not sufficient to fix the problems
5783 completely, or it causes fresh problems, but at least it removes
5784 the most problematic symptom of the minibuffer becoming unusable.
5786 -----------------------------------------------------------------
5788 Now, strictly speaking, we can't be sure that this is accurate,
5789 but the window manager will get around to dealing with the size
5790 change request eventually, and we'll hear how it went when the
5791 ConfigureNotify event gets here.
5793 We could just not bother storing any of this information here,
5794 and let the ConfigureNotify event set everything up, but that
5795 might be kind of confusing to the Lisp code, since size changes
5796 wouldn't be reported in the frame parameters until some random
5797 point in the future when the ConfigureNotify event arrives.
5799 We pass 1 for DELAY since we can't run Lisp code inside of
5800 a BLOCK_INPUT. */
5801 change_frame_size (f, rows, cols, 0, 1, 0);
5802 FRAME_PIXEL_WIDTH (f) = pixelwidth;
5803 FRAME_PIXEL_HEIGHT (f) = pixelheight;
5805 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
5806 receive in the ConfigureNotify event; if we get what we asked
5807 for, then the event won't cause the screen to become garbaged, so
5808 we have to make sure to do it here. */
5809 SET_FRAME_GARBAGED (f);
5811 /* If cursor was outside the new size, mark it as off. */
5812 mark_window_cursors_off (XWINDOW (f->root_window));
5814 /* Clear out any recollection of where the mouse highlighting was,
5815 since it might be in a place that's outside the new frame size.
5816 Actually checking whether it is outside is a pain in the neck,
5817 so don't try--just let the highlighting be done afresh with new size. */
5818 cancel_mouse_face (f);
5819 #endif
5821 unblock_input ();
5824 /* Mouse warping. */
5826 void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
5828 void
5829 x_set_mouse_position (struct frame *f, int x, int y)
5831 int pix_x, pix_y;
5833 pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
5834 pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
5836 if (pix_x < 0) pix_x = 0;
5837 if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
5839 if (pix_y < 0) pix_y = 0;
5840 if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
5842 x_set_mouse_pixel_position (f, pix_x, pix_y);
5845 void
5846 x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
5848 RECT rect;
5849 POINT pt;
5851 block_input ();
5853 GetClientRect (FRAME_W32_WINDOW (f), &rect);
5854 pt.x = rect.left + pix_x;
5855 pt.y = rect.top + pix_y;
5856 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
5858 SetCursorPos (pt.x, pt.y);
5860 unblock_input ();
5864 /* focus shifting, raising and lowering. */
5866 void
5867 x_focus_on_frame (struct frame *f)
5869 struct w32_display_info *dpyinfo = &one_w32_display_info;
5871 /* Give input focus to frame. */
5872 block_input ();
5873 #if 0
5874 /* Try not to change its Z-order if possible. */
5875 if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
5876 my_set_focus (f, FRAME_W32_WINDOW (f));
5877 else
5878 #endif
5879 my_set_foreground_window (FRAME_W32_WINDOW (f));
5880 unblock_input ();
5883 void
5884 x_unfocus_frame (struct frame *f)
5888 /* Raise frame F. */
5889 void
5890 x_raise_frame (struct frame *f)
5892 block_input ();
5894 /* Strictly speaking, raise-frame should only change the frame's Z
5895 order, leaving input focus unchanged. This is reasonable behavior
5896 on X where the usual policy is point-to-focus. However, this
5897 behavior would be very odd on Windows where the usual policy is
5898 click-to-focus.
5900 On X, if the mouse happens to be over the raised frame, it gets
5901 input focus anyway (so the window with focus will never be
5902 completely obscured) - if not, then just moving the mouse over it
5903 is sufficient to give it focus. On Windows, the user must actually
5904 click on the frame (preferably the title bar so as not to move
5905 point), which is more awkward. Also, no other Windows program
5906 raises a window to the top but leaves another window (possibly now
5907 completely obscured) with input focus.
5909 Because there is a system setting on Windows that allows the user
5910 to choose the point to focus policy, we make the strict semantics
5911 optional, but by default we grab focus when raising. */
5913 if (NILP (Vw32_grab_focus_on_raise))
5915 /* The obvious call to my_set_window_pos doesn't work if Emacs is
5916 not already the foreground application: the frame is raised
5917 above all other frames belonging to us, but not above the
5918 current top window. To achieve that, we have to resort to this
5919 more cumbersome method. */
5921 HDWP handle = BeginDeferWindowPos (2);
5922 if (handle)
5924 handle = DeferWindowPos (handle,
5925 FRAME_W32_WINDOW (f),
5926 HWND_TOP,
5927 0, 0, 0, 0,
5928 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5929 if (handle)
5931 handle = DeferWindowPos (handle,
5932 GetForegroundWindow (),
5933 FRAME_W32_WINDOW (f),
5934 0, 0, 0, 0,
5935 SWP_NOSIZE | SWP_NOMOVE |
5936 SWP_NOACTIVATE);
5937 if (handle)
5938 EndDeferWindowPos (handle);
5942 else
5944 my_bring_window_to_top (FRAME_W32_WINDOW (f));
5947 unblock_input ();
5950 /* Lower frame F. */
5951 void
5952 x_lower_frame (struct frame *f)
5954 block_input ();
5955 my_set_window_pos (FRAME_W32_WINDOW (f),
5956 HWND_BOTTOM,
5957 0, 0, 0, 0,
5958 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5959 unblock_input ();
5962 static void
5963 w32_frame_raise_lower (FRAME_PTR f, int raise_flag)
5965 if (! FRAME_W32_P (f))
5966 return;
5968 if (raise_flag)
5969 x_raise_frame (f);
5970 else
5971 x_lower_frame (f);
5974 /* Change of visibility. */
5976 /* This tries to wait until the frame is really visible.
5977 However, if the window manager asks the user where to position
5978 the frame, this will return before the user finishes doing that.
5979 The frame will not actually be visible at that time,
5980 but it will become visible later when the window manager
5981 finishes with it. */
5983 void
5984 x_make_frame_visible (struct frame *f)
5986 Lisp_Object type;
5988 block_input ();
5990 type = x_icon_type (f);
5991 if (!NILP (type))
5992 x_bitmap_icon (f, type);
5994 if (! FRAME_VISIBLE_P (f))
5996 /* We test FRAME_GARBAGED_P here to make sure we don't
5997 call x_set_offset a second time
5998 if we get to x_make_frame_visible a second time
5999 before the window gets really visible. */
6000 if (! FRAME_ICONIFIED_P (f)
6001 && ! f->output_data.w32->asked_for_visible)
6003 RECT workarea_rect;
6004 RECT window_rect;
6006 /* Adjust vertical window position in order to avoid being
6007 covered by a task bar placed at the bottom of the desktop. */
6008 SystemParametersInfo (SPI_GETWORKAREA, 0, &workarea_rect, 0);
6009 GetWindowRect (FRAME_W32_WINDOW (f), &window_rect);
6010 if (window_rect.bottom > workarea_rect.bottom
6011 && window_rect.top > workarea_rect.top)
6012 f->top_pos = max (window_rect.top
6013 - window_rect.bottom + workarea_rect.bottom,
6014 workarea_rect.top);
6016 x_set_offset (f, f->left_pos, f->top_pos, 0);
6019 f->output_data.w32->asked_for_visible = 1;
6021 /* According to a report in emacs-devel 2008-06-03, SW_SHOWNORMAL
6022 causes unexpected behavior when unminimizing frames that were
6023 previously maximized. But only SW_SHOWNORMAL works properly for
6024 frames that were truely hidden (using make-frame-invisible), so
6025 we need it to avoid Bug#5482. It seems that iconified is only
6026 set for minimized windows that are still visible, so use that to
6027 determine the appropriate flag to pass ShowWindow. */
6028 my_show_window (f, FRAME_W32_WINDOW (f),
6029 FRAME_ICONIFIED_P (f) ? SW_RESTORE : SW_SHOWNORMAL);
6032 /* Synchronize to ensure Emacs knows the frame is visible
6033 before we do anything else. We do this loop with input not blocked
6034 so that incoming events are handled. */
6036 Lisp_Object frame;
6037 int count;
6039 /* This must come after we set COUNT. */
6040 unblock_input ();
6042 XSETFRAME (frame, f);
6044 /* Wait until the frame is visible. Process X events until a
6045 MapNotify event has been seen, or until we think we won't get a
6046 MapNotify at all.. */
6047 for (count = input_signal_count + 10;
6048 input_signal_count < count && !FRAME_VISIBLE_P (f);)
6050 /* Force processing of queued events. */
6051 /* TODO: x_sync equivalent? */
6053 /* Machines that do polling rather than SIGIO have been observed
6054 to go into a busy-wait here. So we'll fake an alarm signal
6055 to let the handler know that there's something to be read.
6056 We used to raise a real alarm, but it seems that the handler
6057 isn't always enabled here. This is probably a bug. */
6058 if (input_polling_used ())
6060 /* It could be confusing if a real alarm arrives while processing
6061 the fake one. Turn it off and let the handler reset it. */
6062 int old_poll_suppress_count = poll_suppress_count;
6063 poll_suppress_count = 1;
6064 poll_for_input_1 ();
6065 poll_suppress_count = old_poll_suppress_count;
6071 /* Change from mapped state to withdrawn state. */
6073 /* Make the frame visible (mapped and not iconified). */
6075 void
6076 x_make_frame_invisible (struct frame *f)
6078 /* Don't keep the highlight on an invisible frame. */
6079 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
6080 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
6082 block_input ();
6084 my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
6086 /* We can't distinguish this from iconification
6087 just by the event that we get from the server.
6088 So we can't win using the usual strategy of letting
6089 FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
6090 and synchronize with the server to make sure we agree. */
6091 SET_FRAME_VISIBLE (f, 0);
6092 SET_FRAME_ICONIFIED (f, 0);
6094 unblock_input ();
6097 /* Change window state from mapped to iconified. */
6099 void
6100 x_iconify_frame (struct frame *f)
6102 Lisp_Object type;
6104 /* Don't keep the highlight on an invisible frame. */
6105 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
6106 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
6108 if (FRAME_ICONIFIED_P (f))
6109 return;
6111 block_input ();
6113 type = x_icon_type (f);
6114 if (!NILP (type))
6115 x_bitmap_icon (f, type);
6117 /* Simulate the user minimizing the frame. */
6118 SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
6120 unblock_input ();
6124 /* Free X resources of frame F. */
6126 void
6127 x_free_frame_resources (struct frame *f)
6129 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
6130 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
6132 block_input ();
6134 /* We must free faces before destroying windows because some
6135 font-driver (e.g. xft) access a window while finishing a
6136 face. */
6137 if (FRAME_FACE_CACHE (f))
6138 free_frame_faces (f);
6140 if (FRAME_W32_WINDOW (f))
6141 my_destroy_window (f, FRAME_W32_WINDOW (f));
6143 free_frame_menubar (f);
6145 unload_color (f, FRAME_FOREGROUND_PIXEL (f));
6146 unload_color (f, FRAME_BACKGROUND_PIXEL (f));
6147 unload_color (f, f->output_data.w32->cursor_pixel);
6148 unload_color (f, f->output_data.w32->cursor_foreground_pixel);
6149 unload_color (f, f->output_data.w32->border_pixel);
6150 unload_color (f, f->output_data.w32->mouse_pixel);
6151 if (f->output_data.w32->white_relief.allocated_p)
6152 unload_color (f, f->output_data.w32->white_relief.pixel);
6153 if (f->output_data.w32->black_relief.allocated_p)
6154 unload_color (f, f->output_data.w32->black_relief.pixel);
6156 if (FRAME_FACE_CACHE (f))
6157 free_frame_faces (f);
6159 xfree (f->output_data.w32);
6160 f->output_data.w32 = NULL;
6162 if (f == dpyinfo->w32_focus_frame)
6163 dpyinfo->w32_focus_frame = 0;
6164 if (f == dpyinfo->w32_focus_event_frame)
6165 dpyinfo->w32_focus_event_frame = 0;
6166 if (f == dpyinfo->x_highlight_frame)
6167 dpyinfo->x_highlight_frame = 0;
6169 if (f == hlinfo->mouse_face_mouse_frame)
6171 hlinfo->mouse_face_beg_row
6172 = hlinfo->mouse_face_beg_col = -1;
6173 hlinfo->mouse_face_end_row
6174 = hlinfo->mouse_face_end_col = -1;
6175 hlinfo->mouse_face_window = Qnil;
6176 hlinfo->mouse_face_mouse_frame = 0;
6179 unblock_input ();
6183 /* Destroy the window of frame F. */
6184 void
6185 x_destroy_window (struct frame *f)
6187 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
6189 x_free_frame_resources (f);
6190 dpyinfo->reference_count--;
6194 /* Setting window manager hints. */
6196 /* Set the normal size hints for the window manager, for frame F.
6197 FLAGS is the flags word to use--or 0 meaning preserve the flags
6198 that the window now has.
6199 If USER_POSITION, set the USPosition
6200 flag (this is useful when FLAGS is 0). */
6201 void
6202 x_wm_set_size_hint (struct frame *f, long flags, bool user_position)
6204 Window window = FRAME_W32_WINDOW (f);
6206 enter_crit ();
6208 SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
6209 SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
6210 SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
6211 SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
6213 leave_crit ();
6216 /* Window manager things */
6217 void
6218 x_wm_set_icon_position (struct frame *f, int icon_x, int icon_y)
6220 #if 0
6221 Window window = FRAME_W32_WINDOW (f);
6223 f->display.x->wm_hints.flags |= IconPositionHint;
6224 f->display.x->wm_hints.icon_x = icon_x;
6225 f->display.x->wm_hints.icon_y = icon_y;
6227 XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
6228 #endif
6232 /***********************************************************************
6233 Fonts
6234 ***********************************************************************/
6236 #ifdef GLYPH_DEBUG
6238 /* Check that FONT is valid on frame F. It is if it can be found in F's
6239 font table. */
6241 static void
6242 x_check_font (struct frame *f, struct font *font)
6244 eassert (font != NULL && ! NILP (font->props[FONT_TYPE_INDEX]));
6245 if (font->driver->check)
6246 eassert (font->driver->check (f, font) == 0);
6249 #endif /* GLYPH_DEBUG */
6253 /***********************************************************************
6254 Initialization
6255 ***********************************************************************/
6257 static int w32_initialized = 0;
6259 void
6260 w32_initialize_display_info (Lisp_Object display_name)
6262 struct w32_display_info *dpyinfo = &one_w32_display_info;
6263 Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
6265 memset (dpyinfo, 0, sizeof (*dpyinfo));
6267 /* Put it on w32_display_name_list. */
6268 w32_display_name_list = Fcons (Fcons (display_name, Qnil),
6269 w32_display_name_list);
6270 dpyinfo->name_list_element = XCAR (w32_display_name_list);
6272 dpyinfo->w32_id_name = xmalloc (SCHARS (Vinvocation_name)
6273 + SCHARS (Vsystem_name) + 2);
6274 sprintf (dpyinfo->w32_id_name, "%s@%s",
6275 SDATA (Vinvocation_name), SDATA (Vsystem_name));
6277 /* Default Console mode values - overridden when running in GUI mode
6278 with values obtained from system metrics. */
6279 dpyinfo->resx = 1;
6280 dpyinfo->resy = 1;
6281 dpyinfo->n_planes = 1;
6282 dpyinfo->n_cbits = 4;
6283 dpyinfo->n_fonts = 0;
6284 dpyinfo->smallest_font_height = 1;
6285 dpyinfo->smallest_char_width = 1;
6287 hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
6288 hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
6289 hlinfo->mouse_face_face_id = DEFAULT_FACE_ID;
6290 hlinfo->mouse_face_window = Qnil;
6291 hlinfo->mouse_face_overlay = Qnil;
6292 hlinfo->mouse_face_hidden = 0;
6294 dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
6295 /* TODO: dpyinfo->gray */
6299 /* Create an xrdb-style database of resources to supersede registry settings.
6300 The database is just a concatenation of C strings, finished by an additional
6301 \0. The strings are submitted to some basic normalization, so
6303 [ *]option[ *]:[ *]value...
6305 becomes
6307 option:value...
6309 but any whitespace following value is not removed. */
6311 static char *
6312 w32_make_rdb (char *xrm_option)
6314 char *buffer = xmalloc (strlen (xrm_option) + 2);
6315 char *current = buffer;
6316 char ch;
6317 int in_option = 1;
6318 int before_value = 0;
6320 do {
6321 ch = *xrm_option++;
6323 if (ch == '\n')
6325 *current++ = '\0';
6326 in_option = 1;
6327 before_value = 0;
6329 else if (ch != ' ')
6331 *current++ = ch;
6332 if (in_option && (ch == ':'))
6334 in_option = 0;
6335 before_value = 1;
6337 else if (before_value)
6339 before_value = 0;
6342 else if (!(in_option || before_value))
6344 *current++ = ch;
6346 } while (ch);
6348 *current = '\0';
6350 return buffer;
6353 void
6354 x_flush (struct frame * f)
6355 { /* Nothing to do */ }
6358 extern frame_parm_handler w32_frame_parm_handlers[];
6360 static struct redisplay_interface w32_redisplay_interface =
6362 w32_frame_parm_handlers,
6363 x_produce_glyphs,
6364 x_write_glyphs,
6365 x_insert_glyphs,
6366 x_clear_end_of_line,
6367 x_scroll_run,
6368 x_after_update_window_line,
6369 x_update_window_begin,
6370 x_update_window_end,
6371 x_cursor_to,
6372 x_flush,
6373 0, /* flush_display_optional */
6374 x_clear_window_mouse_face,
6375 x_get_glyph_overhangs,
6376 x_fix_overlapping_area,
6377 w32_draw_fringe_bitmap,
6378 w32_define_fringe_bitmap,
6379 w32_destroy_fringe_bitmap,
6380 w32_compute_glyph_string_overhangs,
6381 x_draw_glyph_string,
6382 w32_define_frame_cursor,
6383 w32_clear_frame_area,
6384 w32_draw_window_cursor,
6385 w32_draw_vertical_window_border,
6386 w32_shift_glyphs_for_insert
6389 static void x_delete_terminal (struct terminal *term);
6391 static struct terminal *
6392 w32_create_terminal (struct w32_display_info *dpyinfo)
6394 struct terminal *terminal;
6396 terminal = create_terminal ();
6398 terminal->type = output_w32;
6399 terminal->display_info.w32 = dpyinfo;
6400 dpyinfo->terminal = terminal;
6402 /* MSVC does not type K&R functions with no arguments correctly, and
6403 so we must explicitly cast them. */
6404 terminal->clear_frame_hook = x_clear_frame;
6405 terminal->ins_del_lines_hook = x_ins_del_lines;
6406 terminal->delete_glyphs_hook = x_delete_glyphs;
6407 terminal->ring_bell_hook = w32_ring_bell;
6408 terminal->reset_terminal_modes_hook = w32_reset_terminal_modes;
6409 terminal->set_terminal_modes_hook = w32_set_terminal_modes;
6410 terminal->update_begin_hook = x_update_begin;
6411 terminal->update_end_hook = x_update_end;
6412 terminal->set_terminal_window_hook = w32_set_terminal_window;
6413 terminal->read_socket_hook = w32_read_socket;
6414 terminal->frame_up_to_date_hook = w32_frame_up_to_date;
6415 terminal->mouse_position_hook = w32_mouse_position;
6416 terminal->frame_rehighlight_hook = w32_frame_rehighlight;
6417 terminal->frame_raise_lower_hook = w32_frame_raise_lower;
6418 terminal->fullscreen_hook = w32fullscreen_hook;
6419 terminal->set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
6420 terminal->condemn_scroll_bars_hook = w32_condemn_scroll_bars;
6421 terminal->redeem_scroll_bar_hook = w32_redeem_scroll_bar;
6422 terminal->judge_scroll_bars_hook = w32_judge_scroll_bars;
6424 terminal->delete_frame_hook = x_destroy_window;
6425 terminal->delete_terminal_hook = x_delete_terminal;
6427 terminal->rif = &w32_redisplay_interface;
6428 terminal->scroll_region_ok = 1; /* We'll scroll partial frames. */
6429 terminal->char_ins_del_ok = 1;
6430 terminal->line_ins_del_ok = 1; /* We'll just blt 'em. */
6431 terminal->fast_clear_end_of_line = 1; /* X does this well. */
6432 terminal->memory_below_frame = 0; /* We don't remember what scrolls
6433 off the bottom. */
6435 /* We don't yet support separate terminals on W32, so don't try to share
6436 keyboards between virtual terminals that are on the same physical
6437 terminal like X does. */
6438 terminal->kboard = xmalloc (sizeof (KBOARD));
6439 init_kboard (terminal->kboard);
6440 kset_window_system (terminal->kboard, intern ("w32"));
6441 terminal->kboard->next_kboard = all_kboards;
6442 all_kboards = terminal->kboard;
6443 /* Don't let the initial kboard remain current longer than necessary.
6444 That would cause problems if a file loaded on startup tries to
6445 prompt in the mini-buffer. */
6446 if (current_kboard == initial_kboard)
6447 current_kboard = terminal->kboard;
6448 terminal->kboard->reference_count++;
6450 return terminal;
6453 static void
6454 x_delete_terminal (struct terminal *terminal)
6456 struct w32_display_info *dpyinfo = terminal->display_info.w32;
6458 /* Protect against recursive calls. delete_frame in
6459 delete_terminal calls us back when it deletes our last frame. */
6460 if (!terminal->name)
6461 return;
6463 block_input ();
6465 x_delete_display (dpyinfo);
6466 unblock_input ();
6469 struct w32_display_info *
6470 w32_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
6472 struct w32_display_info *dpyinfo;
6473 struct terminal *terminal;
6474 HDC hdc;
6476 block_input ();
6478 if (!w32_initialized)
6480 w32_initialize ();
6481 w32_initialized = 1;
6484 w32_initialize_display_info (display_name);
6486 dpyinfo = &one_w32_display_info;
6487 terminal = w32_create_terminal (dpyinfo);
6489 /* Set the name of the terminal. */
6490 terminal->name = xmalloc (SBYTES (display_name) + 1);
6491 strncpy (terminal->name, SDATA (display_name), SBYTES (display_name));
6492 terminal->name[SBYTES (display_name)] = 0;
6494 dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
6496 /* Put this display on the chain. */
6497 dpyinfo->next = x_display_list;
6498 x_display_list = dpyinfo;
6500 hdc = GetDC (NULL);
6502 dpyinfo->root_window = GetDesktopWindow ();
6503 dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
6504 dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
6505 dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
6506 dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
6507 dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
6508 ReleaseDC (NULL, hdc);
6510 /* initialize palette with white and black */
6512 XColor color;
6513 w32_defined_color (0, "white", &color, 1);
6514 w32_defined_color (0, "black", &color, 1);
6517 #ifdef WINDOWSNT
6518 /* Add the default keyboard. When !WINDOWSNT, we're using the
6519 standard Emacs console handling machinery and don't need an
6520 explicit FD here. */
6521 add_keyboard_wait_descriptor (0);
6522 #elif CYGWIN
6523 /* /dev/windows wakes us up when we have a thread message pending. */
6524 add_keyboard_wait_descriptor (w32_message_fd);
6525 #endif
6527 /* Create Fringe Bitmaps and store them for later use.
6529 On W32, bitmaps are all unsigned short, as Windows requires
6530 bitmap data to be Word aligned. For some reason they are
6531 horizontally reflected compared to how they appear on X, so we
6532 need to bitswap and convert to unsigned shorts before creating
6533 the bitmaps. */
6534 w32_init_fringe (terminal->rif);
6536 unblock_input ();
6538 return dpyinfo;
6541 /* Get rid of display DPYINFO, assuming all frames are already gone. */
6542 void
6543 x_delete_display (struct w32_display_info *dpyinfo)
6545 /* Discard this display from w32_display_name_list and w32_display_list.
6546 We can't use Fdelq because that can quit. */
6547 if (! NILP (w32_display_name_list)
6548 && EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
6549 w32_display_name_list = XCDR (w32_display_name_list);
6550 else
6552 Lisp_Object tail;
6554 tail = w32_display_name_list;
6555 while (CONSP (tail) && CONSP (XCDR (tail)))
6557 if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element))
6559 XSETCDR (tail, XCDR (XCDR (tail)));
6560 break;
6562 tail = XCDR (tail);
6566 /* free palette table */
6568 struct w32_palette_entry * plist;
6570 plist = dpyinfo->color_list;
6571 while (plist)
6573 struct w32_palette_entry * pentry = plist;
6574 plist = plist->next;
6575 xfree (pentry);
6577 dpyinfo->color_list = NULL;
6578 if (dpyinfo->palette)
6579 DeleteObject (dpyinfo->palette);
6581 xfree (dpyinfo->w32_id_name);
6583 w32_reset_fringes ();
6587 /* Set up use of W32. */
6589 DWORD WINAPI w32_msg_worker (void * arg);
6591 static void
6592 w32_initialize (void)
6594 HANDLE shell;
6595 HRESULT (WINAPI * set_user_model) (wchar_t * id);
6597 baud_rate = 19200;
6599 w32_system_caret_hwnd = NULL;
6600 w32_system_caret_height = 0;
6601 w32_system_caret_x = 0;
6602 w32_system_caret_y = 0;
6604 /* On Windows 7 and later, we need to set the user model ID
6605 to associate emacsclient launched files with Emacs frames
6606 in the UI. */
6607 shell = GetModuleHandle ("shell32.dll");
6608 if (shell)
6610 set_user_model
6611 = (void *) GetProcAddress (shell,
6612 "SetCurrentProcessExplicitAppUserModelID");
6614 /* If the function is defined, then we are running on Windows 7
6615 or newer, and the UI uses this to group related windows
6616 together. Since emacs, runemacs, emacsclient are related, we
6617 want them grouped even though the executables are different,
6618 so we need to set a consistent ID between them. */
6619 if (set_user_model)
6620 set_user_model (L"GNU.Emacs");
6623 #ifdef CYGWIN
6624 if ((w32_message_fd = emacs_open ("/dev/windows", O_RDWR, 0)) == -1)
6625 fatal ("opening /dev/windows: %s", strerror (errno));
6626 #endif /* CYGWIN */
6628 /* Initialize w32_use_visible_system_caret based on whether a screen
6629 reader is in use. */
6630 if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
6631 &w32_use_visible_system_caret, 0))
6632 w32_use_visible_system_caret = 0;
6634 last_tool_bar_item = -1;
6635 any_help_event_p = 0;
6637 /* Initialize input mode: interrupt_input off, no flow control, allow
6638 8 bit character input, standard quit char. */
6639 Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
6642 DWORD input_locale_id = ((DWORD_PTR) GetKeyboardLayout (0) & 0xffffffff);
6643 w32_keyboard_codepage =
6644 codepage_for_locale ((LCID) (input_locale_id & 0xffff));
6647 /* Create the window thread - it will terminate itself when the app
6648 terminates */
6649 init_crit ();
6651 dwMainThreadId = GetCurrentThreadId ();
6652 DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
6653 GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
6655 /* Wait for thread to start */
6657 MSG msg;
6659 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
6661 hWindowsThread = CreateThread (NULL, 0,
6662 w32_msg_worker,
6663 0, 0, &dwWindowsThreadId);
6665 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6668 /* It is desirable that mainThread should have the same notion of
6669 focus window and active window as windowsThread. Unfortunately, the
6670 following call to AttachThreadInput, which should do precisely what
6671 we need, causes major problems when Emacs is linked as a console
6672 program. Unfortunately, we have good reasons for doing that, so
6673 instead we need to send messages to windowsThread to make some API
6674 calls for us (ones that affect, or depend on, the active/focus
6675 window state.) */
6676 #ifdef ATTACH_THREADS
6677 AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
6678 #endif
6680 /* Dynamically link to optional system components. */
6682 HMODULE user_lib = GetModuleHandle ("user32.dll");
6684 #define LOAD_PROC(lib, fn) pfn##fn = (void *) GetProcAddress (lib, #fn)
6686 LOAD_PROC (user_lib, SetLayeredWindowAttributes);
6688 #undef LOAD_PROC
6690 /* Ensure scrollbar handle is at least 5 pixels. */
6691 vertical_scroll_bar_min_handle = 5;
6693 /* For either kind of scroll bar, take account of the arrows; these
6694 effectively form the border of the main scroll bar range. */
6695 vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
6696 = GetSystemMetrics (SM_CYVSCROLL);
6700 void
6701 syms_of_w32term (void)
6703 staticpro (&w32_display_name_list);
6704 w32_display_name_list = Qnil;
6706 staticpro (&last_mouse_scroll_bar);
6707 last_mouse_scroll_bar = Qnil;
6709 DEFSYM (Qvendor_specific_keysyms, "vendor-specific-keysyms");
6711 DEFSYM (Qadded, "added");
6712 DEFSYM (Qremoved, "removed");
6713 DEFSYM (Qmodified, "modified");
6714 DEFSYM (Qrenamed_from, "renamed-from");
6715 DEFSYM (Qrenamed_to, "renamed-to");
6717 DEFVAR_INT ("w32-num-mouse-buttons",
6718 w32_num_mouse_buttons,
6719 doc: /* Number of physical mouse buttons. */);
6720 w32_num_mouse_buttons = 2;
6722 DEFVAR_LISP ("w32-swap-mouse-buttons",
6723 Vw32_swap_mouse_buttons,
6724 doc: /* Swap the mapping of middle and right mouse buttons.
6725 When nil, middle button is mouse-2 and right button is mouse-3. */);
6726 Vw32_swap_mouse_buttons = Qnil;
6728 DEFVAR_LISP ("w32-grab-focus-on-raise",
6729 Vw32_grab_focus_on_raise,
6730 doc: /* Raised frame grabs input focus.
6731 When t, `raise-frame' grabs input focus as well. This fits well
6732 with the normal Windows click-to-focus policy, but might not be
6733 desirable when using a point-to-focus policy. */);
6734 Vw32_grab_focus_on_raise = Qt;
6736 DEFVAR_LISP ("w32-capslock-is-shiftlock",
6737 Vw32_capslock_is_shiftlock,
6738 doc: /* Apply CapsLock state to non character input keys.
6739 When nil, CapsLock only affects normal character input keys. */);
6740 Vw32_capslock_is_shiftlock = Qnil;
6742 DEFVAR_LISP ("w32-recognize-altgr",
6743 Vw32_recognize_altgr,
6744 doc: /* Recognize right-alt and left-ctrl as AltGr.
6745 When nil, the right-alt and left-ctrl key combination is
6746 interpreted normally. */);
6747 Vw32_recognize_altgr = Qt;
6749 DEFVAR_BOOL ("w32-use-visible-system-caret",
6750 w32_use_visible_system_caret,
6751 doc: /* Flag to make the system caret visible.
6752 When this is non-nil, Emacs will indicate the position of point by
6753 using the system caret instead of drawing its own cursor. Some screen
6754 reader software does not track the system cursor properly when it is
6755 invisible, and gets confused by Emacs drawing its own cursor, so this
6756 variable is initialized to t when Emacs detects that screen reader
6757 software is running as it starts up.
6759 When this variable is set, other variables affecting the appearance of
6760 the cursor have no effect. */);
6762 w32_use_visible_system_caret = 0;
6764 /* We don't yet support this, but defining this here avoids whining
6765 from cus-start.el and other places, like "M-x set-variable". */
6766 DEFVAR_BOOL ("x-use-underline-position-properties",
6767 x_use_underline_position_properties,
6768 doc: /* Non-nil means make use of UNDERLINE_POSITION font properties.
6769 A value of nil means ignore them. If you encounter fonts with bogus
6770 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
6771 to 4.1, set this to nil. You can also use `underline-minimum-offset'
6772 to override the font's UNDERLINE_POSITION for small font display
6773 sizes. */);
6774 x_use_underline_position_properties = 0;
6776 DEFVAR_BOOL ("x-underline-at-descent-line",
6777 x_underline_at_descent_line,
6778 doc: /* Non-nil means to draw the underline at the same place as the descent line.
6779 A value of nil means to draw the underline according to the value of the
6780 variable `x-use-underline-position-properties', which is usually at the
6781 baseline level. The default value is nil. */);
6782 x_underline_at_descent_line = 0;
6784 DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,
6785 doc: /* Which toolkit scroll bars Emacs uses, if any.
6786 A value of nil means Emacs doesn't use toolkit scroll bars.
6787 With the X Window system, the value is a symbol describing the
6788 X toolkit. Possible values are: gtk, motif, xaw, or xaw3d.
6789 With MS Windows or Nextstep, the value is t. */);
6790 Vx_toolkit_scroll_bars = Qt;
6792 staticpro (&last_mouse_motion_frame);
6793 last_mouse_motion_frame = Qnil;
6795 Fprovide (intern_c_string ("w32"), Qnil);