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1 /* Implementation of GUI terminal on the Microsoft W32 API.
2 Copyright (C) 1989, 93, 94, 95, 96, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4
5 This file is part of GNU Emacs.
6
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
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.
16
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 #include <config.h>
23 #include <signal.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include "lisp.h"
27 #include "charset.h"
28 #include "blockinput.h"
29
30 #include "w32heap.h"
31 #include "w32term.h"
32 #include "w32bdf.h"
33 #include <shellapi.h>
34
35 #include "systty.h"
36 #include "systime.h"
37 #include "atimer.h"
38 #include "keymap.h"
39
40 #include <ctype.h>
41 #include <errno.h>
42 #include <setjmp.h>
43 #include <sys/stat.h>
44
45 #include "keyboard.h"
46 #include "frame.h"
47 #include "dispextern.h"
48 #include "fontset.h"
49 #include "termhooks.h"
50 #include "termopts.h"
51 #include "termchar.h"
52 #include "gnu.h"
53 #include "disptab.h"
54 #include "buffer.h"
55 #include "window.h"
56 #include "intervals.h"
57 #include "composite.h"
58 #include "coding.h"
59
60 #define abs(x) ((x) < 0 ? -(x) : (x))
61
62 \f
63 /* Fringe bitmaps. */
64
65 static HBITMAP fringe_bmp[MAX_FRINGE_BITMAPS];
66
67 /* Non-nil means Emacs uses toolkit scroll bars. */
68
69 Lisp_Object Vx_toolkit_scroll_bars;
70
71 /* Temporary variables for w32_read_socket. */
72
73 static int last_mousemove_x = 0;
74 static int last_mousemove_y = 0;
75
76 /* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
77 #ifndef GET_WHEEL_DELTA_WPARAM
78 #define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
79 #endif
80
81 /* Non-zero means that a HELP_EVENT has been generated since Emacs
82 start. */
83
84 static int any_help_event_p;
85
86 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
87 static Lisp_Object last_window;
88
89 extern unsigned int msh_mousewheel;
90
91 extern void free_frame_menubar ();
92
93 extern int w32_codepage_for_font (char *fontname);
94 extern Cursor w32_load_cursor (LPCTSTR name);
95
96 extern glyph_metric *w32_BDF_TextMetric(bdffont *fontp,
97 unsigned char *text, int dim);
98 extern Lisp_Object Vwindow_system;
99
100 #define x_any_window_to_frame x_window_to_frame
101 #define x_top_window_to_frame x_window_to_frame
102
103 \f
104 /* This is display since w32 does not support multiple ones. */
105 struct w32_display_info one_w32_display_info;
106 struct w32_display_info *x_display_list;
107
108 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
109 one for each element of w32_display_list and in the same order.
110 NAME is the name of the frame.
111 FONT-LIST-CACHE records previous values returned by x-list-fonts. */
112 Lisp_Object w32_display_name_list;
113
114 /* Frame being updated by update_frame. This is declared in term.c.
115 This is set by update_begin and looked at by all the
116 w32 functions. It is zero while not inside an update.
117 In that case, the w32 functions assume that `SELECTED_FRAME ()'
118 is the frame to apply to. */
119 extern struct frame *updating_frame;
120
121 /* This is a frame waiting to be autoraised, within w32_read_socket. */
122 struct frame *pending_autoraise_frame;
123
124 /* The handle of the frame that currently owns the system caret. */
125 HWND w32_system_caret_hwnd;
126 int w32_system_caret_height;
127 int w32_system_caret_x;
128 int w32_system_caret_y;
129 int w32_use_visible_system_caret;
130
131 /* Flag to enable Unicode output in case users wish to use programs
132 like Twinbridge on '95 rather than installed system level support
133 for Far East languages. */
134 int w32_enable_unicode_output;
135
136 DWORD dwWindowsThreadId = 0;
137 HANDLE hWindowsThread = NULL;
138 DWORD dwMainThreadId = 0;
139 HANDLE hMainThread = NULL;
140
141 #ifndef SIF_ALL
142 /* These definitions are new with Windows 95. */
143 #define SIF_RANGE 0x0001
144 #define SIF_PAGE 0x0002
145 #define SIF_POS 0x0004
146 #define SIF_DISABLENOSCROLL 0x0008
147 #define SIF_TRACKPOS 0x0010
148 #define SIF_ALL (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS)
149
150 typedef struct tagSCROLLINFO
151 {
152 UINT cbSize;
153 UINT fMask;
154 int nMin;
155 int nMax;
156 UINT nPage;
157 int nPos;
158 int nTrackPos;
159 } SCROLLINFO, FAR *LPSCROLLINFO;
160 typedef SCROLLINFO CONST FAR *LPCSCROLLINFO;
161 #endif /* SIF_ALL */
162
163 /* Dynamic linking to new proportional scroll bar functions. */
164 int (PASCAL *pfnSetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi, BOOL fRedraw);
165 BOOL (PASCAL *pfnGetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi);
166
167 int vertical_scroll_bar_min_handle;
168 int vertical_scroll_bar_top_border;
169 int vertical_scroll_bar_bottom_border;
170
171 int last_scroll_bar_drag_pos;
172
173 /* Mouse movement. */
174
175 /* Where the mouse was last time we reported a mouse event. */
176
177 static RECT last_mouse_glyph;
178 static Lisp_Object last_mouse_press_frame;
179
180 Lisp_Object Vw32_num_mouse_buttons;
181
182 Lisp_Object Vw32_swap_mouse_buttons;
183
184 /* Control whether x_raise_frame also sets input focus. */
185 Lisp_Object Vw32_grab_focus_on_raise;
186
187 /* Control whether Caps Lock affects non-ascii characters. */
188 Lisp_Object Vw32_capslock_is_shiftlock;
189
190 /* Control whether right-alt and left-ctrl should be recognized as AltGr. */
191 Lisp_Object Vw32_recognize_altgr;
192
193 /* The scroll bar in which the last motion event occurred.
194
195 If the last motion event occurred in a scroll bar, we set this
196 so w32_mouse_position can know whether to report a scroll bar motion or
197 an ordinary motion.
198
199 If the last motion event didn't occur in a scroll bar, we set this
200 to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
201 static Lisp_Object last_mouse_scroll_bar;
202 static int last_mouse_scroll_bar_pos;
203
204 /* This is a hack. We would really prefer that w32_mouse_position would
205 return the time associated with the position it returns, but there
206 doesn't seem to be any way to wrest the time-stamp from the server
207 along with the position query. So, we just keep track of the time
208 of the last movement we received, and return that in hopes that
209 it's somewhat accurate. */
210
211 static Time last_mouse_movement_time;
212
213 /* Incremented by w32_read_socket whenever it really tries to read
214 events. */
215
216 #ifdef __STDC__
217 static int volatile input_signal_count;
218 #else
219 static int input_signal_count;
220 #endif
221
222 extern Lisp_Object Vcommand_line_args, Vsystem_name;
223
224 extern Lisp_Object Qface, Qmouse_face;
225
226 #ifndef USE_CRT_DLL
227 extern int errno;
228 #endif
229
230 /* A mask of extra modifier bits to put into every keyboard char. */
231
232 extern EMACS_INT extra_keyboard_modifiers;
233
234 static void x_update_window_end P_ ((struct window *, int, int));
235 void w32_delete_display P_ ((struct w32_display_info *));
236 static void w32_handle_tool_bar_click P_ ((struct frame *,
237 struct input_event *));
238 void w32_define_cursor P_ ((Window, Cursor));
239
240 void x_lower_frame P_ ((struct frame *));
241 void x_scroll_bar_clear P_ ((struct frame *));
242 void x_wm_set_size_hint P_ ((struct frame *, long, int));
243 void x_raise_frame P_ ((struct frame *));
244 void x_set_window_size P_ ((struct frame *, int, int, int));
245 void x_wm_set_window_state P_ ((struct frame *, int));
246 void x_wm_set_icon_pixmap P_ ((struct frame *, int));
247 void w32_initialize P_ ((void));
248 static void x_font_min_bounds P_ ((XFontStruct *, int *, int *));
249 int x_compute_min_glyph_bounds P_ ((struct frame *));
250 static void x_update_end P_ ((struct frame *));
251 static void w32_frame_up_to_date P_ ((struct frame *));
252 static void w32_set_terminal_modes P_ ((void));
253 static void w32_reset_terminal_modes P_ ((void));
254 static void x_clear_frame P_ ((void));
255 static void frame_highlight P_ ((struct frame *));
256 static void frame_unhighlight P_ ((struct frame *));
257 static void x_new_focus_frame P_ ((struct w32_display_info *,
258 struct frame *));
259 static void w32_frame_rehighlight P_ ((struct frame *));
260 static void x_frame_rehighlight P_ ((struct w32_display_info *));
261 static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *));
262 static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int,
263 enum text_cursor_kinds));
264 static void w32_clip_to_row P_ ((struct window *, struct glyph_row *, HDC));
265
266 static Lisp_Object Qvendor_specific_keysyms;
267
268 \f
269 /***********************************************************************
270 Debugging
271 ***********************************************************************/
272
273 #if 0
274
275 /* This is a function useful for recording debugging information about
276 the sequence of occurrences in this file. */
277
278 struct record
279 {
280 char *locus;
281 int type;
282 };
283
284 struct record event_record[100];
285
286 int event_record_index;
287
288 record_event (locus, type)
289 char *locus;
290 int type;
291 {
292 if (event_record_index == sizeof (event_record) / sizeof (struct record))
293 event_record_index = 0;
294
295 event_record[event_record_index].locus = locus;
296 event_record[event_record_index].type = type;
297 event_record_index++;
298 }
299
300 #endif /* 0 */
301 \f
302
303 void
304 XChangeGC (void * ignore, XGCValues* gc, unsigned long mask,
305 XGCValues *xgcv)
306 {
307 if (mask & GCForeground)
308 gc->foreground = xgcv->foreground;
309 if (mask & GCBackground)
310 gc->background = xgcv->background;
311 if (mask & GCFont)
312 gc->font = xgcv->font;
313 }
314
315 XGCValues *XCreateGC (void * ignore, Window window, unsigned long mask,
316 XGCValues *xgcv)
317 {
318 XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
319 bzero (gc, sizeof (XGCValues));
320
321 XChangeGC (ignore, gc, mask, xgcv);
322
323 return gc;
324 }
325
326 void
327 XGetGCValues (void* ignore, XGCValues *gc,
328 unsigned long mask, XGCValues *xgcv)
329 {
330 XChangeGC (ignore, xgcv, mask, gc);
331 }
332
333 static void
334 w32_set_clip_rectangle (HDC hdc, RECT *rect)
335 {
336 if (rect)
337 {
338 HRGN clip_region = CreateRectRgnIndirect (rect);
339 SelectClipRgn (hdc, clip_region);
340 DeleteObject (clip_region);
341 }
342 else
343 SelectClipRgn (hdc, NULL);
344 }
345
346
347 /* Draw a hollow rectangle at the specified position. */
348 void
349 w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
350 int width, int height)
351 {
352 HBRUSH hb, oldhb;
353 HPEN hp, oldhp;
354
355 hb = CreateSolidBrush (gc->background);
356 hp = CreatePen (PS_SOLID, 0, gc->foreground);
357 oldhb = SelectObject (hdc, hb);
358 oldhp = SelectObject (hdc, hp);
359
360 Rectangle (hdc, x, y, x + width, y + height);
361
362 SelectObject (hdc, oldhb);
363 SelectObject (hdc, oldhp);
364 DeleteObject (hb);
365 DeleteObject (hp);
366 }
367
368 /* Draw a filled rectangle at the specified position. */
369 void
370 w32_fill_rect (f, hdc, pix, lprect)
371 FRAME_PTR f;
372 HDC hdc;
373 COLORREF pix;
374 RECT * lprect;
375 {
376 HBRUSH hb;
377
378 hb = CreateSolidBrush (pix);
379 FillRect (hdc, lprect, hb);
380 DeleteObject (hb);
381 }
382
383 void
384 w32_clear_window (f)
385 FRAME_PTR f;
386 {
387 RECT rect;
388 HDC hdc = get_frame_dc (f);
389
390 /* Under certain conditions, this can be called at startup with
391 a console frame pointer before the GUI frame is created. An HDC
392 of 0 indicates this. */
393 if (hdc)
394 {
395 GetClientRect (FRAME_W32_WINDOW (f), &rect);
396 w32_clear_rect (f, hdc, &rect);
397 }
398
399 release_frame_dc (f, hdc);
400 }
401
402 \f
403 /***********************************************************************
404 Starting and ending an update
405 ***********************************************************************/
406
407 /* Start an update of frame F. This function is installed as a hook
408 for update_begin, i.e. it is called when update_begin is called.
409 This function is called prior to calls to x_update_window_begin for
410 each window being updated. */
411
412 static void
413 x_update_begin (f)
414 struct frame *f;
415 {
416 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
417
418 if (! FRAME_W32_P (f))
419 return;
420
421 /* Regenerate display palette before drawing if list of requested
422 colors has changed. */
423 if (display_info->regen_palette)
424 {
425 w32_regenerate_palette (f);
426 display_info->regen_palette = FALSE;
427 }
428 }
429
430
431 /* Start update of window W. Set the global variable updated_window
432 to the window being updated and set output_cursor to the cursor
433 position of W. */
434
435 static void
436 x_update_window_begin (w)
437 struct window *w;
438 {
439 struct frame *f = XFRAME (WINDOW_FRAME (w));
440 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
441
442 /* Hide the system caret during an update. */
443 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
444 {
445 SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
446 }
447
448 updated_window = w;
449 set_output_cursor (&w->cursor);
450
451 BLOCK_INPUT;
452
453 if (f == display_info->mouse_face_mouse_frame)
454 {
455 /* Don't do highlighting for mouse motion during the update. */
456 display_info->mouse_face_defer = 1;
457
458 /* If F needs to be redrawn, simply forget about any prior mouse
459 highlighting. */
460 if (FRAME_GARBAGED_P (f))
461 display_info->mouse_face_window = Qnil;
462
463 #if 0 /* Rows in a current matrix containing glyphs in mouse-face have
464 their mouse_face_p flag set, which means that they are always
465 unequal to rows in a desired matrix which never have that
466 flag set. So, rows containing mouse-face glyphs are never
467 scrolled, and we don't have to switch the mouse highlight off
468 here to prevent it from being scrolled. */
469
470 /* Can we tell that this update does not affect the window
471 where the mouse highlight is? If so, no need to turn off.
472 Likewise, don't do anything if the frame is garbaged;
473 in that case, the frame's current matrix that we would use
474 is all wrong, and we will redisplay that line anyway. */
475 if (!NILP (display_info->mouse_face_window)
476 && w == XWINDOW (display_info->mouse_face_window))
477 {
478 int i;
479
480 for (i = 0; i < w->desired_matrix->nrows; ++i)
481 if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
482 break;
483
484 if (i < w->desired_matrix->nrows)
485 clear_mouse_face (display_info);
486 }
487 #endif /* 0 */
488 }
489
490 UNBLOCK_INPUT;
491 }
492
493 /* Draw a vertical window border from (x,y0) to (x,y1) */
494
495 static void
496 w32_draw_vertical_window_border (w, x, y0, y1)
497 struct window *w;
498 int x, y0, y1;
499 {
500 struct frame *f = XFRAME (WINDOW_FRAME (w));
501 RECT r;
502 HDC hdc;
503
504 r.left = x;
505 r.right = x + 1;
506 r.top = y0;
507 r.bottom = y1;
508
509 hdc = get_frame_dc (f);
510 w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
511 release_frame_dc (f, hdc);
512 }
513
514
515 /* End update of window W (which is equal to updated_window).
516
517 Draw vertical borders between horizontally adjacent windows, and
518 display W's cursor if CURSOR_ON_P is non-zero.
519
520 MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
521 glyphs in mouse-face were overwritten. In that case we have to
522 make sure that the mouse-highlight is properly redrawn.
523
524 W may be a menu bar pseudo-window in case we don't have X toolkit
525 support. Such windows don't have a cursor, so don't display it
526 here. */
527
528 static void
529 x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p)
530 struct window *w;
531 int cursor_on_p, mouse_face_overwritten_p;
532 {
533 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (XFRAME (w->frame));
534
535 if (!w->pseudo_window_p)
536 {
537 BLOCK_INPUT;
538
539 if (cursor_on_p)
540 display_and_set_cursor (w, 1, output_cursor.hpos,
541 output_cursor.vpos,
542 output_cursor.x, output_cursor.y);
543
544 x_draw_vertical_border (w);
545 UNBLOCK_INPUT;
546 }
547
548 /* If a row with mouse-face was overwritten, arrange for
549 XTframe_up_to_date to redisplay the mouse highlight. */
550 if (mouse_face_overwritten_p)
551 {
552 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
553 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
554 dpyinfo->mouse_face_window = Qnil;
555 }
556
557 /* Unhide the caret. This won't actually show the cursor, unless it
558 was visible before the corresponding call to HideCaret in
559 x_update_window_begin. */
560 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
561 {
562 SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
563 }
564
565 updated_window = NULL;
566 }
567
568
569 /* End update of frame F. This function is installed as a hook in
570 update_end. */
571
572 static void
573 x_update_end (f)
574 struct frame *f;
575 {
576 if (! FRAME_W32_P (f))
577 return;
578
579 /* Mouse highlight may be displayed again. */
580 FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
581 }
582
583
584 /* This function is called from various places in xdisp.c whenever a
585 complete update has been performed. The global variable
586 updated_window is not available here. */
587
588 static void
589 w32_frame_up_to_date (f)
590 struct frame *f;
591 {
592 if (FRAME_W32_P (f))
593 {
594 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
595
596 if (dpyinfo->mouse_face_deferred_gc
597 || f == dpyinfo->mouse_face_mouse_frame)
598 {
599 BLOCK_INPUT;
600 if (dpyinfo->mouse_face_mouse_frame)
601 note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
602 dpyinfo->mouse_face_mouse_x,
603 dpyinfo->mouse_face_mouse_y);
604 dpyinfo->mouse_face_deferred_gc = 0;
605 UNBLOCK_INPUT;
606 }
607 }
608 }
609
610
611 /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
612 arrow bitmaps, or clear the fringes if no bitmaps are required
613 before DESIRED_ROW is made current. The window being updated is
614 found in updated_window. This function is called from
615 update_window_line only if it is known that there are differences
616 between bitmaps to be drawn between current row and DESIRED_ROW. */
617
618 static void
619 x_after_update_window_line (desired_row)
620 struct glyph_row *desired_row;
621 {
622 struct window *w = updated_window;
623 struct frame *f;
624 int width, height;
625
626 xassert (w);
627
628 if (!desired_row->mode_line_p && !w->pseudo_window_p)
629 {
630 BLOCK_INPUT;
631 draw_row_fringe_bitmaps (w, desired_row);
632 UNBLOCK_INPUT;
633 }
634
635 /* When a window has disappeared, make sure that no rest of
636 full-width rows stays visible in the internal border. Could
637 check here if updated_window is the leftmost/rightmost window,
638 but I guess it's not worth doing since vertically split windows
639 are almost never used, internal border is rarely set, and the
640 overhead is very small. */
641 if (windows_or_buffers_changed
642 && desired_row->full_width_p
643 && (f = XFRAME (w->frame),
644 width = FRAME_INTERNAL_BORDER_WIDTH (f),
645 width != 0)
646 && (height = desired_row->visible_height,
647 height > 0))
648 {
649 int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
650
651 /* Internal border is drawn below the tool bar. */
652 if (WINDOWP (f->tool_bar_window)
653 && w == XWINDOW (f->tool_bar_window))
654 y -= width;
655
656 BLOCK_INPUT;
657 {
658 HDC hdc = get_frame_dc (f);
659 w32_clear_area (f, hdc, 0, y, width, height);
660 w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
661 y, width, height);
662 release_frame_dc (f, hdc);
663 }
664 UNBLOCK_INPUT;
665 }
666 }
667
668
669 /* Draw the bitmap WHICH in one of the left or right fringes of
670 window W. ROW is the glyph row for which to display the bitmap; it
671 determines the vertical position at which the bitmap has to be
672 drawn. */
673
674 static void
675 w32_draw_fringe_bitmap (w, row, p)
676 struct window *w;
677 struct glyph_row *row;
678 struct draw_fringe_bitmap_params *p;
679 {
680 struct frame *f = XFRAME (WINDOW_FRAME (w));
681 HDC hdc;
682 struct face *face = p->face;
683
684 hdc = get_frame_dc (f);
685
686 /* Must clip because of partially visible lines. */
687 w32_clip_to_row (w, row, hdc);
688
689 if (p->bx >= 0)
690 {
691 w32_fill_area (f, hdc, face->background,
692 p->bx, p->by, p->nx, p->ny);
693 }
694
695 if (p->which != NO_FRINGE_BITMAP)
696 {
697 HBITMAP pixmap = fringe_bmp[p->which];
698 HDC compat_hdc;
699 HANDLE horig_obj;
700
701 compat_hdc = CreateCompatibleDC (hdc);
702 SaveDC (hdc);
703
704 horig_obj = SelectObject (compat_hdc, pixmap);
705 SetTextColor (hdc, face->background);
706 SetBkColor (hdc, face->foreground);
707
708 BitBlt (hdc, p->x, p->y, p->wd, p->h,
709 compat_hdc, 0, p->dh,
710 SRCCOPY);
711
712 SelectObject (compat_hdc, horig_obj);
713 DeleteDC (compat_hdc);
714 RestoreDC (hdc, -1);
715 }
716
717 w32_set_clip_rectangle (hdc, NULL);
718
719 release_frame_dc (f, hdc);
720 }
721
722 \f
723 /* This is called when starting Emacs and when restarting after
724 suspend. When starting Emacs, no window is mapped. And nothing
725 must be done to Emacs's own window if it is suspended (though that
726 rarely happens). */
727
728 static void
729 w32_set_terminal_modes (void)
730 {
731 }
732
733 /* This is called when exiting or suspending Emacs. Exiting will make
734 the W32 windows go away, and suspending requires no action. */
735
736 static void
737 w32_reset_terminal_modes (void)
738 {
739 }
740
741
742 \f
743 /***********************************************************************
744 Display Iterator
745 ***********************************************************************/
746
747 /* Function prototypes of this page. */
748
749 static XCharStruct *w32_per_char_metric P_ ((XFontStruct *,
750 wchar_t *, int));
751 static int w32_encode_char P_ ((int, wchar_t *, struct font_info *, int *));
752
753
754 /* Get metrics of character CHAR2B in FONT. Value is always non-null.
755 If CHAR2B is not contained in FONT, the font's default character
756 metric is returned. */
757
758 static int
759 w32_bdf_per_char_metric (font, char2b, dim, pcm)
760 XFontStruct *font;
761 wchar_t *char2b;
762 int dim;
763 XCharStruct * pcm;
764 {
765 glyph_metric * bdf_metric;
766 char buf[2];
767
768 if (dim == 1)
769 buf[0] = (char)(*char2b);
770 else
771 {
772 buf[0] = XCHAR2B_BYTE1 (char2b);
773 buf[1] = XCHAR2B_BYTE2 (char2b);
774 }
775
776 bdf_metric = w32_BDF_TextMetric (font->bdf, buf, dim);
777
778 if (bdf_metric)
779 {
780 pcm->width = bdf_metric->dwidth;
781 pcm->lbearing = bdf_metric->bbox;
782 pcm->rbearing = bdf_metric->dwidth
783 - (bdf_metric->bbox + bdf_metric->bbw);
784 pcm->ascent = bdf_metric->bboy + bdf_metric->bbh;
785 pcm->descent = -bdf_metric->bboy;
786
787 return 1;
788 }
789 return 0;
790 }
791
792
793 static int
794 w32_native_per_char_metric (font, char2b, font_type, pcm)
795 XFontStruct *font;
796 wchar_t *char2b;
797 enum w32_char_font_type font_type;
798 XCharStruct * pcm;
799 {
800 HDC hdc = GetDC (NULL);
801 HFONT old_font;
802 BOOL retval = FALSE;
803
804 xassert (font && char2b);
805 xassert (font->hfont);
806 xassert (font_type == UNICODE_FONT || font_type == ANSI_FONT);
807
808 old_font = SelectObject (hdc, font->hfont);
809
810 if ((font->tm.tmPitchAndFamily & TMPF_TRUETYPE) != 0)
811 {
812 ABC char_widths;
813
814 if (font_type == UNICODE_FONT)
815 retval = GetCharABCWidthsW (hdc, *char2b, *char2b, &char_widths);
816 else
817 retval = GetCharABCWidthsA (hdc, *char2b, *char2b, &char_widths);
818
819 if (retval)
820 {
821 #if 0
822 /* Disabled until we can find a way to get the right results
823 on all versions of Windows. */
824
825 /* Don't trust the ABC widths. For synthesized fonts they are
826 wrong, and so is the result of GetCharWidth()! */
827 int real_width;
828 GetCharWidth (hdc, *char2b, *char2b, &real_width);
829 #endif
830 pcm->width = char_widths.abcA + char_widths.abcB + char_widths.abcC;
831 #if 0
832 /* As far as I can tell, this is the best way to determine what
833 ExtTextOut will do with the broken font. */
834 if (pcm->width != real_width)
835 pcm->width = (pcm->width + real_width) / 2;
836 #endif
837 pcm->lbearing = char_widths.abcA;
838 pcm->rbearing = char_widths.abcA + char_widths.abcB;
839 pcm->ascent = FONT_BASE (font);
840 pcm->descent = FONT_DESCENT (font);
841 }
842 }
843
844 if (!retval)
845 {
846 /* Either font is not a True-type font, or GetCharABCWidthsW
847 failed (it is not supported on Windows 9x for instance), so we
848 can't determine the full info we would like. All is not lost
849 though - we can call GetTextExtentPoint32 to get rbearing and
850 deduce width based on the font's per-string overhang. lbearing
851 is assumed to be zero. */
852
853 /* TODO: Some Thai characters (and other composites if Windows
854 supports them) do have lbearing, and report their total width
855 as zero. Need some way of handling them when
856 GetCharABCWidthsW fails. */
857 SIZE sz;
858
859 if (font_type == UNICODE_FONT)
860 retval = GetTextExtentPoint32W (hdc, char2b, 1, &sz);
861 else
862 retval = GetTextExtentPoint32A (hdc, (char*)char2b, 1, &sz);
863
864 if (retval)
865 {
866 pcm->width = sz.cx - font->tm.tmOverhang;
867 pcm->rbearing = sz.cx;
868 pcm->lbearing = 0;
869 pcm->ascent = FONT_BASE (font);
870 pcm->descent = FONT_DESCENT (font);
871 }
872 }
873
874
875 if (pcm->width == 0 && (pcm->rbearing - pcm->lbearing) == 0)
876 {
877 retval = FALSE;
878 }
879
880 SelectObject (hdc, old_font);
881 ReleaseDC (NULL, hdc);
882
883 return retval;
884 }
885
886
887 static XCharStruct *
888 w32_per_char_metric (font, char2b, font_type)
889 XFontStruct *font;
890 wchar_t *char2b;
891 int /* enum w32_char_font_type */ font_type;
892 {
893 /* The result metric information. */
894 XCharStruct *pcm;
895 BOOL retval;
896
897 xassert (font && char2b);
898
899 /* Handle the common cases quickly. */
900 if (!font->bdf && font->per_char == NULL)
901 /* TODO: determine whether char2b exists in font? */
902 return &font->max_bounds;
903 else if (!font->bdf && *char2b < 128)
904 return &font->per_char[*char2b];
905
906 xassert (font_type != UNKNOWN_FONT);
907
908 pcm = &font->scratch;
909
910 if (font_type == BDF_1D_FONT)
911 retval = w32_bdf_per_char_metric (font, char2b, 1, pcm);
912 else if (font_type == BDF_2D_FONT)
913 retval = w32_bdf_per_char_metric (font, char2b, 2, pcm);
914 else
915 retval = w32_native_per_char_metric (font, char2b, font_type, pcm);
916
917 if (retval)
918 return pcm;
919
920 return NULL;
921 }
922
923 void
924 w32_cache_char_metrics (font)
925 XFontStruct *font;
926 {
927 wchar_t char2b = L'x';
928
929 /* Cache char metrics for the common cases. */
930 if (font->bdf)
931 {
932 /* TODO: determine whether font is fixed-pitch. */
933 if (!w32_bdf_per_char_metric (font, &char2b, 1, &font->max_bounds))
934 {
935 /* Use the font width and height as max bounds, as not all BDF
936 fonts contain the letter 'x'. */
937 font->max_bounds.width = FONT_MAX_WIDTH (font);
938 font->max_bounds.lbearing = -font->bdf->llx;
939 font->max_bounds.rbearing = FONT_MAX_WIDTH (font) - font->bdf->urx;
940 font->max_bounds.ascent = FONT_BASE (font);
941 font->max_bounds.descent = FONT_DESCENT (font);
942 }
943 }
944 else
945 {
946 if (((font->tm.tmPitchAndFamily & TMPF_FIXED_PITCH) != 0)
947 /* Some fonts (eg DBCS fonts) are marked as fixed width even
948 though they contain characters of different widths. */
949 || (font->tm.tmMaxCharWidth != font->tm.tmAveCharWidth))
950 {
951 /* Font is not fixed pitch, so cache per_char info for the
952 ASCII characters. It would be much more work, and probably
953 not worth it, to cache other chars, since we may change
954 between using Unicode and ANSI text drawing functions at
955 run-time. */
956 int i;
957
958 font->per_char = xmalloc (128 * sizeof(XCharStruct));
959 for (i = 0; i < 128; i++)
960 {
961 char2b = i;
962 w32_native_per_char_metric (font, &char2b, ANSI_FONT,
963 &font->per_char[i]);
964 }
965 }
966 else
967 w32_native_per_char_metric (font, &char2b, ANSI_FONT,
968 &font->max_bounds);
969 }
970 }
971
972
973 /* Determine if a font is double byte. */
974 int w32_font_is_double_byte (XFontStruct *font)
975 {
976 return font->double_byte_p;
977 }
978
979
980 static BOOL
981 w32_use_unicode_for_codepage (codepage)
982 int codepage;
983 {
984 /* If the current codepage is supported, use Unicode for output. */
985 return (w32_enable_unicode_output
986 && codepage != CP_8BIT
987 && (codepage == CP_UNICODE || IsValidCodePage (codepage)));
988 }
989
990 /* Encode CHAR2B using encoding information from FONT_INFO. CHAR2B is
991 the two-byte form of C. Encoding is returned in *CHAR2B. */
992
993 static int /* enum w32_char_font_type */
994 w32_encode_char (c, char2b, font_info, two_byte_p)
995 int c;
996 wchar_t *char2b;
997 struct font_info *font_info;
998 int * two_byte_p;
999 {
1000 int charset = CHAR_CHARSET (c);
1001 int codepage;
1002 int unicode_p = 0;
1003 int internal_two_byte_p = 0;
1004
1005 XFontStruct *font = font_info->font;
1006
1007 internal_two_byte_p = w32_font_is_double_byte (font);
1008
1009 /* FONT_INFO may define a scheme by which to encode byte1 and byte2.
1010 This may be either a program in a special encoder language or a
1011 fixed encoding. */
1012 if (font_info->font_encoder)
1013 {
1014 /* It's a program. */
1015 struct ccl_program *ccl = font_info->font_encoder;
1016
1017 if (CHARSET_DIMENSION (charset) == 1)
1018 {
1019 ccl->reg[0] = charset;
1020 ccl->reg[1] = XCHAR2B_BYTE2 (char2b);
1021 ccl->reg[2] = -1;
1022 }
1023 else
1024 {
1025 ccl->reg[0] = charset;
1026 ccl->reg[1] = XCHAR2B_BYTE1 (char2b);
1027 ccl->reg[2] = XCHAR2B_BYTE2 (char2b);
1028 }
1029
1030 ccl_driver (ccl, NULL, NULL, 0, 0, NULL);
1031
1032 /* We assume that MSBs are appropriately set/reset by CCL
1033 program. */
1034 if (!internal_two_byte_p) /* 1-byte font */
1035 STORE_XCHAR2B (char2b, 0, ccl->reg[1]);
1036 else
1037 STORE_XCHAR2B (char2b, ccl->reg[1], ccl->reg[2]);
1038 }
1039 else if (font_info->encoding[charset])
1040 {
1041 /* Fixed encoding scheme. See fontset.h for the meaning of the
1042 encoding numbers. */
1043 int enc = font_info->encoding[charset];
1044
1045 if ((enc == 1 || enc == 2)
1046 && CHARSET_DIMENSION (charset) == 2)
1047 STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b) | 0x80, XCHAR2B_BYTE2 (char2b));
1048
1049 if (enc == 1 || enc == 3
1050 || (enc == 4 && CHARSET_DIMENSION (charset) == 1))
1051 STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b) | 0x80);
1052 else if (enc == 4)
1053 {
1054 int sjis1, sjis2;
1055
1056 ENCODE_SJIS (XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b),
1057 sjis1, sjis2);
1058 STORE_XCHAR2B (char2b, sjis1, sjis2);
1059 }
1060 }
1061 codepage = font_info->codepage;
1062
1063 /* If charset is not ASCII or Latin-1, may need to move it into
1064 Unicode space. */
1065 if ( font && !font->bdf && w32_use_unicode_for_codepage (codepage)
1066 && charset != CHARSET_ASCII && charset != charset_latin_iso8859_1
1067 && charset != CHARSET_8_BIT_CONTROL && charset != CHARSET_8_BIT_GRAPHIC)
1068 {
1069 char temp[3];
1070 temp[0] = XCHAR2B_BYTE1 (char2b);
1071 temp[1] = XCHAR2B_BYTE2 (char2b);
1072 temp[2] = '\0';
1073 if (codepage != CP_UNICODE)
1074 {
1075 if (temp[0])
1076 MultiByteToWideChar (codepage, 0, temp, 2, char2b, 1);
1077 else
1078 MultiByteToWideChar (codepage, 0, temp+1, 1, char2b, 1);
1079 }
1080 unicode_p = 1;
1081 internal_two_byte_p = 1;
1082 }
1083
1084 if (two_byte_p)
1085 *two_byte_p = internal_two_byte_p;
1086
1087 if (!font)
1088 return UNKNOWN_FONT;
1089 else if (font->bdf && CHARSET_DIMENSION (charset) == 1)
1090 return BDF_1D_FONT;
1091 else if (font->bdf)
1092 return BDF_2D_FONT;
1093 else if (unicode_p)
1094 return UNICODE_FONT;
1095 else
1096 return ANSI_FONT;
1097 }
1098
1099
1100 \f
1101 /***********************************************************************
1102 Glyph display
1103 ***********************************************************************/
1104
1105
1106 /* Encapsulate the different ways of displaying text under W32. */
1107
1108 static void
1109 w32_text_out (s, x, y,chars,nchars)
1110 struct glyph_string * s;
1111 int x, y;
1112 wchar_t * chars;
1113 int nchars;
1114 {
1115 int charset_dim = w32_font_is_double_byte (s->gc->font) ? 2 : 1;
1116 if (s->gc->font->bdf)
1117 w32_BDF_TextOut (s->gc->font->bdf, s->hdc,
1118 x, y, (char *) chars, charset_dim,
1119 nchars * charset_dim, 0);
1120 else if (s->first_glyph->font_type == UNICODE_FONT)
1121 ExtTextOutW (s->hdc, x, y, 0, NULL, chars, nchars, NULL);
1122 else
1123 ExtTextOutA (s->hdc, x, y, 0, NULL, (char *) chars,
1124 nchars * charset_dim, NULL);
1125 }
1126
1127
1128
1129 static void x_set_glyph_string_clipping P_ ((struct glyph_string *));
1130 static void x_set_glyph_string_gc P_ ((struct glyph_string *));
1131 static void x_draw_glyph_string_background P_ ((struct glyph_string *,
1132 int));
1133 static void x_draw_glyph_string_foreground P_ ((struct glyph_string *));
1134 static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *));
1135 static void x_draw_glyph_string_box P_ ((struct glyph_string *));
1136 static void x_draw_glyph_string P_ ((struct glyph_string *));
1137 static void x_set_cursor_gc P_ ((struct glyph_string *));
1138 static void x_set_mode_line_face_gc P_ ((struct glyph_string *));
1139 static void x_set_mouse_face_gc P_ ((struct glyph_string *));
1140 static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
1141 static void w32_setup_relief_color P_ ((struct frame *, struct relief *,
1142 double, int, COLORREF));
1143 static void x_setup_relief_colors P_ ((struct glyph_string *));
1144 static void x_draw_image_glyph_string P_ ((struct glyph_string *));
1145 static void x_draw_image_relief P_ ((struct glyph_string *));
1146 static void x_draw_image_foreground P_ ((struct glyph_string *));
1147 static void w32_draw_image_foreground_1 P_ ((struct glyph_string *, HBITMAP));
1148 static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int,
1149 int, int, int));
1150 static void w32_draw_relief_rect P_ ((struct frame *, int, int, int, int,
1151 int, int, int, int, RECT *));
1152 static void w32_draw_box_rect P_ ((struct glyph_string *, int, int, int, int,
1153 int, int, int, RECT *));
1154
1155 #if GLYPH_DEBUG
1156 static void x_check_font P_ ((struct frame *, XFontStruct *));
1157 #endif
1158
1159
1160 /* Set S->gc to a suitable GC for drawing glyph string S in cursor
1161 face. */
1162
1163 static void
1164 x_set_cursor_gc (s)
1165 struct glyph_string *s;
1166 {
1167 if (s->font == FRAME_FONT (s->f)
1168 && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
1169 && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
1170 && !s->cmp)
1171 s->gc = s->f->output_data.w32->cursor_gc;
1172 else
1173 {
1174 /* Cursor on non-default face: must merge. */
1175 XGCValues xgcv;
1176 unsigned long mask;
1177
1178 xgcv.background = s->f->output_data.w32->cursor_pixel;
1179 xgcv.foreground = s->face->background;
1180
1181 /* If the glyph would be invisible, try a different foreground. */
1182 if (xgcv.foreground == xgcv.background)
1183 xgcv.foreground = s->face->foreground;
1184 if (xgcv.foreground == xgcv.background)
1185 xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
1186 if (xgcv.foreground == xgcv.background)
1187 xgcv.foreground = s->face->foreground;
1188
1189 /* Make sure the cursor is distinct from text in this face. */
1190 if (xgcv.background == s->face->background
1191 && xgcv.foreground == s->face->foreground)
1192 {
1193 xgcv.background = s->face->foreground;
1194 xgcv.foreground = s->face->background;
1195 }
1196
1197 IF_DEBUG (x_check_font (s->f, s->font));
1198 xgcv.font = s->font;
1199 mask = GCForeground | GCBackground | GCFont;
1200
1201 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1202 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1203 mask, &xgcv);
1204 else
1205 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1206 = XCreateGC (NULL, s->window, mask, &xgcv);
1207
1208 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1209 }
1210 }
1211
1212
1213 /* Set up S->gc of glyph string S for drawing text in mouse face. */
1214
1215 static void
1216 x_set_mouse_face_gc (s)
1217 struct glyph_string *s;
1218 {
1219 int face_id;
1220 struct face *face;
1221
1222 /* What face has to be used last for the mouse face? */
1223 face_id = FRAME_W32_DISPLAY_INFO (s->f)->mouse_face_face_id;
1224 face = FACE_FROM_ID (s->f, face_id);
1225 if (face == NULL)
1226 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
1227
1228 if (s->first_glyph->type == CHAR_GLYPH)
1229 face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch);
1230 else
1231 face_id = FACE_FOR_CHAR (s->f, face, 0);
1232 s->face = FACE_FROM_ID (s->f, face_id);
1233 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1234
1235 /* If font in this face is same as S->font, use it. */
1236 if (s->font == s->face->font)
1237 s->gc = s->face->gc;
1238 else
1239 {
1240 /* Otherwise construct scratch_cursor_gc with values from FACE
1241 but font FONT. */
1242 XGCValues xgcv;
1243 unsigned long mask;
1244
1245 xgcv.background = s->face->background;
1246 xgcv.foreground = s->face->foreground;
1247 IF_DEBUG (x_check_font (s->f, s->font));
1248 xgcv.font = s->font;
1249 mask = GCForeground | GCBackground | GCFont;
1250
1251 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1252 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1253 mask, &xgcv);
1254 else
1255 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1256 = XCreateGC (NULL, s->window, mask, &xgcv);
1257
1258 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1259 }
1260
1261 xassert (s->gc != 0);
1262 }
1263
1264
1265 /* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
1266 Faces to use in the mode line have already been computed when the
1267 matrix was built, so there isn't much to do, here. */
1268
1269 static INLINE void
1270 x_set_mode_line_face_gc (s)
1271 struct glyph_string *s;
1272 {
1273 s->gc = s->face->gc;
1274 }
1275
1276
1277 /* Set S->gc of glyph string S for drawing that glyph string. Set
1278 S->stippled_p to a non-zero value if the face of S has a stipple
1279 pattern. */
1280
1281 static INLINE void
1282 x_set_glyph_string_gc (s)
1283 struct glyph_string *s;
1284 {
1285 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1286
1287 if (s->hl == DRAW_NORMAL_TEXT)
1288 {
1289 s->gc = s->face->gc;
1290 s->stippled_p = s->face->stipple != 0;
1291 }
1292 else if (s->hl == DRAW_INVERSE_VIDEO)
1293 {
1294 x_set_mode_line_face_gc (s);
1295 s->stippled_p = s->face->stipple != 0;
1296 }
1297 else if (s->hl == DRAW_CURSOR)
1298 {
1299 x_set_cursor_gc (s);
1300 s->stippled_p = 0;
1301 }
1302 else if (s->hl == DRAW_MOUSE_FACE)
1303 {
1304 x_set_mouse_face_gc (s);
1305 s->stippled_p = s->face->stipple != 0;
1306 }
1307 else if (s->hl == DRAW_IMAGE_RAISED
1308 || s->hl == DRAW_IMAGE_SUNKEN)
1309 {
1310 s->gc = s->face->gc;
1311 s->stippled_p = s->face->stipple != 0;
1312 }
1313 else
1314 {
1315 s->gc = s->face->gc;
1316 s->stippled_p = s->face->stipple != 0;
1317 }
1318
1319 /* GC must have been set. */
1320 xassert (s->gc != 0);
1321 }
1322
1323
1324 /* Set clipping for output of glyph string S. S may be part of a mode
1325 line or menu if we don't have X toolkit support. */
1326
1327 static INLINE void
1328 x_set_glyph_string_clipping (s)
1329 struct glyph_string *s;
1330 {
1331 RECT r;
1332 get_glyph_string_clip_rect (s, &r);
1333 w32_set_clip_rectangle (s->hdc, &r);
1334 }
1335
1336
1337 /* RIF:
1338 Compute left and right overhang of glyph string S. If S is a glyph
1339 string for a composition, assume overhangs don't exist. */
1340
1341 static void
1342 w32_compute_glyph_string_overhangs (s)
1343 struct glyph_string *s;
1344 {
1345 /* TODO: Windows does not appear to have a method for
1346 getting this info without getting the ABC widths for each
1347 individual character and working it out manually. */
1348 }
1349
1350
1351 static void
1352 w32_get_glyph_overhangs (glyph, f, left, right)
1353 struct glyph *glyph;
1354 struct frame *f;
1355 int *left, *right;
1356 {
1357 HDC hdc = get_frame_dc (f);
1358 /* Convert to unicode! */
1359 x_get_glyph_overhangs (glyph, f, left, right);
1360 release_frame_dc (f, hdc);
1361 }
1362
1363
1364 /* Fill rectangle X, Y, W, H with background color of glyph string S. */
1365
1366 static INLINE void
1367 x_clear_glyph_string_rect (s, x, y, w, h)
1368 struct glyph_string *s;
1369 int x, y, w, h;
1370 {
1371 int real_x = x;
1372 int real_y = y;
1373 int real_w = w;
1374 int real_h = h;
1375 #if 0
1376 /* Take clipping into account. */
1377 if (s->gc->clip_mask == Rect)
1378 {
1379 real_x = max (real_x, s->gc->clip_rectangle.left);
1380 real_y = max (real_y, s->gc->clip_rectangle.top);
1381 real_w = min (real_w, s->gc->clip_rectangle.right
1382 - s->gc->clip_rectangle.left);
1383 real_h = min (real_h, s->gc->clip_rectangle.bottom
1384 - s->gc->clip_rectangle.top);
1385 }
1386 #endif
1387 w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
1388 real_w, real_h);
1389 }
1390
1391
1392 /* Draw the background of glyph_string S. If S->background_filled_p
1393 is non-zero don't draw it. FORCE_P non-zero means draw the
1394 background even if it wouldn't be drawn normally. This is used
1395 when a string preceding S draws into the background of S, or S
1396 contains the first component of a composition. */
1397
1398 static void
1399 x_draw_glyph_string_background (s, force_p)
1400 struct glyph_string *s;
1401 int force_p;
1402 {
1403 /* Nothing to do if background has already been drawn or if it
1404 shouldn't be drawn in the first place. */
1405 if (!s->background_filled_p)
1406 {
1407 int box_line_width = max (s->face->box_line_width, 0);
1408
1409 #if 0 /* TODO: stipple */
1410 if (s->stippled_p)
1411 {
1412 /* Fill background with a stipple pattern. */
1413 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
1414 XFillRectangle (s->display, s->window, s->gc, s->x,
1415 s->y + box_line_width,
1416 s->background_width,
1417 s->height - 2 * box_line_width);
1418 XSetFillStyle (s->display, s->gc, FillSolid);
1419 s->background_filled_p = 1;
1420 }
1421 else
1422 #endif
1423 if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1424 || s->font_not_found_p
1425 || s->extends_to_end_of_line_p
1426 || s->font->bdf
1427 || force_p)
1428 {
1429 x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1430 s->background_width,
1431 s->height - 2 * box_line_width);
1432 s->background_filled_p = 1;
1433 }
1434 }
1435 }
1436
1437
1438 /* Draw the foreground of glyph string S. */
1439
1440 static void
1441 x_draw_glyph_string_foreground (s)
1442 struct glyph_string *s;
1443 {
1444 int i, x;
1445 HFONT old_font;
1446
1447 /* If first glyph of S has a left box line, start drawing the text
1448 of S to the right of that box line. */
1449 if (s->face->box != FACE_NO_BOX
1450 && s->first_glyph->left_box_line_p)
1451 x = s->x + abs (s->face->box_line_width);
1452 else
1453 x = s->x;
1454
1455 if (s->for_overlaps_p || (s->background_filled_p && s->hl != DRAW_CURSOR))
1456 SetBkMode (s->hdc, TRANSPARENT);
1457 else
1458 SetBkMode (s->hdc, OPAQUE);
1459
1460 SetTextColor (s->hdc, s->gc->foreground);
1461 SetBkColor (s->hdc, s->gc->background);
1462 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1463
1464 if (s->font && s->font->hfont)
1465 old_font = SelectObject (s->hdc, s->font->hfont);
1466
1467 /* Draw characters of S as rectangles if S's font could not be
1468 loaded. */
1469 if (s->font_not_found_p)
1470 {
1471 for (i = 0; i < s->nchars; ++i)
1472 {
1473 struct glyph *g = s->first_glyph + i;
1474
1475 w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
1476 s->height - 1);
1477 x += g->pixel_width;
1478 }
1479 }
1480 else
1481 {
1482 char *char1b = (char *) s->char2b;
1483 int boff = s->font_info->baseline_offset;
1484
1485 if (s->font_info->vertical_centering)
1486 boff = VCENTER_BASELINE_OFFSET (s->font, s->f) - boff;
1487
1488 /* If we can use 8-bit functions, condense S->char2b. */
1489 if (!s->two_byte_p)
1490 for (i = 0; i < s->nchars; ++i)
1491 char1b[i] = XCHAR2B_BYTE2 (&s->char2b[i]);
1492
1493 /* Draw text with TextOut and friends. */
1494 w32_text_out (s, x, s->ybase - boff, s->char2b, s->nchars);
1495
1496 if (s->face->overstrike)
1497 {
1498 /* For overstriking (to simulate bold-face), draw the
1499 characters again shifted to the right by one pixel. */
1500 w32_text_out (s, x + 1, s->ybase - boff, s->char2b, s->nchars);
1501 }
1502 }
1503 if (s->font && s->font->hfont)
1504 SelectObject (s->hdc, old_font);
1505 }
1506
1507 /* Draw the foreground of composite glyph string S. */
1508
1509 static void
1510 x_draw_composite_glyph_string_foreground (s)
1511 struct glyph_string *s;
1512 {
1513 int i, x;
1514 HFONT old_font;
1515
1516 /* If first glyph of S has a left box line, start drawing the text
1517 of S to the right of that box line. */
1518 if (s->face->box != FACE_NO_BOX
1519 && s->first_glyph->left_box_line_p)
1520 x = s->x + abs (s->face->box_line_width);
1521 else
1522 x = s->x;
1523
1524 /* S is a glyph string for a composition. S->gidx is the index of
1525 the first character drawn for glyphs of this composition.
1526 S->gidx == 0 means we are drawing the very first character of
1527 this composition. */
1528
1529 SetTextColor (s->hdc, s->gc->foreground);
1530 SetBkColor (s->hdc, s->gc->background);
1531 SetBkMode (s->hdc, TRANSPARENT);
1532 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1533
1534 if (s->font && s->font->hfont)
1535 old_font = SelectObject (s->hdc, s->font->hfont);
1536
1537 /* Draw a rectangle for the composition if the font for the very
1538 first character of the composition could not be loaded. */
1539 if (s->font_not_found_p)
1540 {
1541 if (s->gidx == 0)
1542 w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
1543 s->height - 1);
1544 }
1545 else
1546 {
1547 for (i = 0; i < s->nchars; i++, ++s->gidx)
1548 {
1549 w32_text_out (s, x + s->cmp->offsets[s->gidx * 2],
1550 s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
1551 s->char2b + i, 1);
1552 if (s->face->overstrike)
1553 w32_text_out (s, x + s->cmp->offsets[s->gidx * 2] + 1,
1554 s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
1555 s->char2b + i, 1);
1556 }
1557 }
1558
1559 if (s->font && s->font->hfont)
1560 SelectObject (s->hdc, old_font);
1561 }
1562
1563
1564 /* Brightness beyond which a color won't have its highlight brightness
1565 boosted.
1566
1567 Nominally, highlight colors for `3d' faces are calculated by
1568 brightening an object's color by a constant scale factor, but this
1569 doesn't yield good results for dark colors, so for colors who's
1570 brightness is less than this value (on a scale of 0-255) have to
1571 use an additional additive factor.
1572
1573 The value here is set so that the default menu-bar/mode-line color
1574 (grey75) will not have its highlights changed at all. */
1575 #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 187
1576
1577
1578 /* Allocate a color which is lighter or darker than *COLOR by FACTOR
1579 or DELTA. Try a color with RGB values multiplied by FACTOR first.
1580 If this produces the same color as COLOR, try a color where all RGB
1581 values have DELTA added. Return the allocated color in *COLOR.
1582 DISPLAY is the X display, CMAP is the colormap to operate on.
1583 Value is non-zero if successful. */
1584
1585 static int
1586 w32_alloc_lighter_color (f, color, factor, delta)
1587 struct frame *f;
1588 COLORREF *color;
1589 double factor;
1590 int delta;
1591 {
1592 COLORREF new;
1593 long bright;
1594
1595 /* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
1596 delta /= 256;
1597
1598 /* Change RGB values by specified FACTOR. Avoid overflow! */
1599 xassert (factor >= 0);
1600 new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
1601 min (0xff, factor * GetGValue (*color)),
1602 min (0xff, factor * GetBValue (*color)));
1603
1604 /* Calculate brightness of COLOR. */
1605 bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
1606 + GetBValue (*color)) / 6;
1607
1608 /* We only boost colors that are darker than
1609 HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
1610 if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
1611 /* Make an additive adjustment to NEW, because it's dark enough so
1612 that scaling by FACTOR alone isn't enough. */
1613 {
1614 /* How far below the limit this color is (0 - 1, 1 being darker). */
1615 double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
1616 /* The additive adjustment. */
1617 int min_delta = delta * dimness * factor / 2;
1618
1619 if (factor < 1)
1620 new = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
1621 max (0, min (0xff, min_delta - GetGValue (*color))),
1622 max (0, min (0xff, min_delta - GetBValue (*color))));
1623 else
1624 new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
1625 max (0, min (0xff, min_delta + GetGValue (*color))),
1626 max (0, min (0xff, min_delta + GetBValue (*color))));
1627 }
1628
1629 if (new == *color)
1630 new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
1631 max (0, min (0xff, delta + GetGValue (*color))),
1632 max (0, min (0xff, delta + GetBValue (*color))));
1633
1634 /* TODO: Map to palette and retry with delta if same? */
1635 /* TODO: Free colors (if using palette)? */
1636
1637 if (new == *color)
1638 return 0;
1639
1640 *color = new;
1641
1642 return 1;
1643 }
1644
1645
1646 /* Set up the foreground color for drawing relief lines of glyph
1647 string S. RELIEF is a pointer to a struct relief containing the GC
1648 with which lines will be drawn. Use a color that is FACTOR or
1649 DELTA lighter or darker than the relief's background which is found
1650 in S->f->output_data.x->relief_background. If such a color cannot
1651 be allocated, use DEFAULT_PIXEL, instead. */
1652
1653 static void
1654 w32_setup_relief_color (f, relief, factor, delta, default_pixel)
1655 struct frame *f;
1656 struct relief *relief;
1657 double factor;
1658 int delta;
1659 COLORREF default_pixel;
1660 {
1661 XGCValues xgcv;
1662 struct w32_output *di = f->output_data.w32;
1663 unsigned long mask = GCForeground;
1664 COLORREF pixel;
1665 COLORREF background = di->relief_background;
1666 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
1667
1668 /* TODO: Free colors (if using palette)? */
1669
1670 /* Allocate new color. */
1671 xgcv.foreground = default_pixel;
1672 pixel = background;
1673 if (w32_alloc_lighter_color (f, &pixel, factor, delta))
1674 {
1675 relief->allocated_p = 1;
1676 xgcv.foreground = relief->pixel = pixel;
1677 }
1678
1679 if (relief->gc == 0)
1680 {
1681 #if 0 /* TODO: stipple */
1682 xgcv.stipple = dpyinfo->gray;
1683 mask |= GCStipple;
1684 #endif
1685 relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
1686 }
1687 else
1688 XChangeGC (NULL, relief->gc, mask, &xgcv);
1689 }
1690
1691
1692 /* Set up colors for the relief lines around glyph string S. */
1693
1694 static void
1695 x_setup_relief_colors (s)
1696 struct glyph_string *s;
1697 {
1698 struct w32_output *di = s->f->output_data.w32;
1699 COLORREF color;
1700
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;
1709
1710 if (di->white_relief.gc == 0
1711 || color != di->relief_background)
1712 {
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));
1718 }
1719 }
1720
1721
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. */
1729
1730 static void
1731 w32_draw_relief_rect (f, left_x, top_y, right_x, bottom_y, width,
1732 raised_p, left_p, right_p, clip_rect)
1733 struct frame *f;
1734 int left_x, top_y, right_x, bottom_y, width, left_p, right_p, raised_p;
1735 RECT *clip_rect;
1736 {
1737 int i;
1738 XGCValues gc;
1739 HDC hdc = get_frame_dc (f);
1740
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;
1745
1746 w32_set_clip_rectangle (hdc, clip_rect);
1747
1748 /* Top. */
1749 for (i = 0; i < width; ++i)
1750 w32_fill_area (f, hdc, gc.foreground,
1751 left_x + i * left_p, top_y + i,
1752 right_x - left_x - i * (left_p + right_p ) + 1, 1);
1753
1754 /* Left. */
1755 if (left_p)
1756 for (i = 0; i < width; ++i)
1757 w32_fill_area (f, hdc, gc.foreground,
1758 left_x + i, top_y + i, 1,
1759 bottom_y - top_y - 2 * i + 1);
1760
1761 if (raised_p)
1762 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1763 else
1764 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1765
1766 /* Bottom. */
1767 for (i = 0; i < width; ++i)
1768 w32_fill_area (f, hdc, gc.foreground,
1769 left_x + i * left_p, bottom_y - i,
1770 right_x - left_x - i * (left_p + right_p) + 1, 1);
1771
1772 /* Right. */
1773 if (right_p)
1774 for (i = 0; i < width; ++i)
1775 w32_fill_area (f, hdc, gc.foreground,
1776 right_x - i, top_y + i + 1, 1,
1777 bottom_y - top_y - 2 * i - 1);
1778
1779 w32_set_clip_rectangle (hdc, NULL);
1780
1781 release_frame_dc (f, hdc);
1782 }
1783
1784
1785 /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
1786 RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
1787 draw, it must be >= 0. LEFT_P non-zero means draw a line on the
1788 left side of the rectangle. RIGHT_P non-zero means draw a line
1789 on the right side of the rectangle. CLIP_RECT is the clipping
1790 rectangle to use when drawing. */
1791
1792 static void
1793 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1794 left_p, right_p, clip_rect)
1795 struct glyph_string *s;
1796 int left_x, top_y, right_x, bottom_y, width, left_p, right_p;
1797 RECT *clip_rect;
1798 {
1799 w32_set_clip_rectangle (s->hdc, clip_rect);
1800
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);
1804
1805 /* Left. */
1806 if (left_p)
1807 {
1808 w32_fill_area (s->f, s->hdc, s->face->box_color,
1809 left_x, top_y, width, bottom_y - top_y + 1);
1810 }
1811
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);
1815
1816 /* Right. */
1817 if (right_p)
1818 {
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);
1821 }
1822
1823 w32_set_clip_rectangle (s->hdc, NULL);
1824 }
1825
1826
1827 /* Draw a box around glyph string S. */
1828
1829 static void
1830 x_draw_glyph_string_box (s)
1831 struct glyph_string *s;
1832 {
1833 int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
1834 int left_p, right_p;
1835 struct glyph *last_glyph;
1836 RECT clip_rect;
1837
1838 last_x = window_box_right (s->w, s->area);
1839 if (s->row->full_width_p
1840 && !s->w->pseudo_window_p)
1841 {
1842 last_x += WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH (s->w);
1843 if (s->area != RIGHT_MARGIN_AREA
1844 || WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (s->w))
1845 last_x += WINDOW_RIGHT_FRINGE_WIDTH (s->w);
1846 }
1847
1848 /* The glyph that may have a right box line. */
1849 last_glyph = (s->cmp || s->img
1850 ? s->first_glyph
1851 : s->first_glyph + s->nchars - 1);
1852
1853 width = abs (s->face->box_line_width);
1854 raised_p = s->face->box == FACE_RAISED_BOX;
1855 left_x = s->x;
1856 right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
1857 ? last_x - 1
1858 : min (last_x, s->x + s->background_width) - 1));
1859 top_y = s->y;
1860 bottom_y = top_y + s->height - 1;
1861
1862 left_p = (s->first_glyph->left_box_line_p
1863 || (s->hl == DRAW_MOUSE_FACE
1864 && (s->prev == NULL
1865 || s->prev->hl != s->hl)));
1866 right_p = (last_glyph->right_box_line_p
1867 || (s->hl == DRAW_MOUSE_FACE
1868 && (s->next == NULL
1869 || s->next->hl != s->hl)));
1870
1871 get_glyph_string_clip_rect (s, &clip_rect);
1872
1873 if (s->face->box == FACE_SIMPLE_BOX)
1874 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1875 left_p, right_p, &clip_rect);
1876 else
1877 {
1878 x_setup_relief_colors (s);
1879 w32_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
1880 width, raised_p, left_p, right_p, &clip_rect);
1881 }
1882 }
1883
1884
1885 /* Draw foreground of image glyph string S. */
1886
1887 static void
1888 x_draw_image_foreground (s)
1889 struct glyph_string *s;
1890 {
1891 int x;
1892 int y = s->ybase - image_ascent (s->img, s->face);
1893
1894 /* If first glyph of S has a left box line, start drawing it to the
1895 right of that line. */
1896 if (s->face->box != FACE_NO_BOX
1897 && s->first_glyph->left_box_line_p)
1898 x = s->x + abs (s->face->box_line_width);
1899 else
1900 x = s->x;
1901
1902 /* If there is a margin around the image, adjust x- and y-position
1903 by that margin. */
1904 x += s->img->hmargin;
1905 y += s->img->vmargin;
1906
1907 SaveDC (s->hdc);
1908
1909 if (s->img->pixmap)
1910 {
1911 HDC compat_hdc = CreateCompatibleDC (s->hdc);
1912 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1913 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
1914 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1915 SetBkColor (compat_hdc, RGB (255, 255, 255));
1916 SetTextColor (s->hdc, RGB (0, 0, 0));
1917 x_set_glyph_string_clipping (s);
1918
1919 if (s->img->mask)
1920 {
1921 HDC mask_dc = CreateCompatibleDC (s->hdc);
1922 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1923
1924 SetTextColor (s->hdc, RGB (255, 255, 255));
1925 SetBkColor (s->hdc, RGB (0, 0, 0));
1926
1927 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1928 compat_hdc, 0, 0, SRCINVERT);
1929 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1930 mask_dc, 0, 0, SRCAND);
1931 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1932 compat_hdc, 0, 0, SRCINVERT);
1933
1934 SelectObject (mask_dc, mask_orig_obj);
1935 DeleteDC (mask_dc);
1936 }
1937 else
1938 {
1939 SetTextColor (s->hdc, s->gc->foreground);
1940 SetBkColor (s->hdc, s->gc->background);
1941
1942 BitBlt (s->hdc, x, y, s->img->width, s->img->height,
1943 compat_hdc, 0, 0, SRCCOPY);
1944
1945 /* When the image has a mask, we can expect that at
1946 least part of a mouse highlight or a block cursor will
1947 be visible. If the image doesn't have a mask, make
1948 a block cursor visible by drawing a rectangle around
1949 the image. I believe it's looking better if we do
1950 nothing here for mouse-face. */
1951 if (s->hl == DRAW_CURSOR)
1952 {
1953 int r = s->img->relief;
1954 if (r < 0) r = -r;
1955 w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
1956 s->img->width + r*2 - 1, s->img->height + r*2 - 1);
1957 }
1958 }
1959
1960 w32_set_clip_rectangle (s->hdc, NULL);
1961 SelectObject (s->hdc, orig_brush);
1962 DeleteObject (fg_brush);
1963 SelectObject (compat_hdc, orig_obj);
1964 DeleteDC (compat_hdc);
1965 }
1966 else
1967 w32_draw_rectangle (s->hdc, s->gc, x, y, s->img->width -1,
1968 s->img->height - 1);
1969
1970 RestoreDC (s->hdc ,-1);
1971 }
1972
1973
1974
1975 /* Draw a relief around the image glyph string S. */
1976
1977 static void
1978 x_draw_image_relief (s)
1979 struct glyph_string *s;
1980 {
1981 int x0, y0, x1, y1, thick, raised_p;
1982 RECT r;
1983 int x;
1984 int y = s->ybase - image_ascent (s->img, s->face);
1985
1986 /* If first glyph of S has a left box line, start drawing it to the
1987 right of that line. */
1988 if (s->face->box != FACE_NO_BOX
1989 && s->first_glyph->left_box_line_p)
1990 x = s->x + abs (s->face->box_line_width);
1991 else
1992 x = s->x;
1993
1994 /* If there is a margin around the image, adjust x- and y-position
1995 by that margin. */
1996 x += s->img->hmargin;
1997 y += s->img->vmargin;
1998
1999 if (s->hl == DRAW_IMAGE_SUNKEN
2000 || s->hl == DRAW_IMAGE_RAISED)
2001 {
2002 thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
2003 raised_p = s->hl == DRAW_IMAGE_RAISED;
2004 }
2005 else
2006 {
2007 thick = abs (s->img->relief);
2008 raised_p = s->img->relief > 0;
2009 }
2010
2011 x0 = x - thick;
2012 y0 = y - thick;
2013 x1 = x + s->img->width + thick - 1;
2014 y1 = y + s->img->height + thick - 1;
2015
2016 x_setup_relief_colors (s);
2017 get_glyph_string_clip_rect (s, &r);
2018 w32_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p, 1, 1, &r);
2019 }
2020
2021
2022 /* Draw the foreground of image glyph string S to PIXMAP. */
2023
2024 static void
2025 w32_draw_image_foreground_1 (s, pixmap)
2026 struct glyph_string *s;
2027 HBITMAP pixmap;
2028 {
2029 HDC hdc = CreateCompatibleDC (s->hdc);
2030 HGDIOBJ orig_hdc_obj = SelectObject (hdc, pixmap);
2031 int x;
2032 int y = s->ybase - s->y - image_ascent (s->img, s->face);
2033
2034 /* If first glyph of S has a left box line, start drawing it to the
2035 right of that line. */
2036 if (s->face->box != FACE_NO_BOX
2037 && s->first_glyph->left_box_line_p)
2038 x = abs (s->face->box_line_width);
2039 else
2040 x = 0;
2041
2042 /* If there is a margin around the image, adjust x- and y-position
2043 by that margin. */
2044 x += s->img->hmargin;
2045 y += s->img->vmargin;
2046
2047 if (s->img->pixmap)
2048 {
2049 HDC compat_hdc = CreateCompatibleDC (hdc);
2050 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2051 HBRUSH orig_brush = SelectObject (hdc, fg_brush);
2052 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
2053
2054 if (s->img->mask)
2055 {
2056 HDC mask_dc = CreateCompatibleDC (hdc);
2057 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
2058
2059 SetTextColor (hdc, RGB (0, 0, 0));
2060 SetBkColor (hdc, RGB (255, 255, 255));
2061 BitBlt (hdc, x, y, s->img->width, s->img->height,
2062 compat_hdc, 0, 0, SRCINVERT);
2063 BitBlt (hdc, x, y, s->img->width, s->img->height,
2064 mask_dc, 0, 0, SRCAND);
2065 BitBlt (hdc, x, y, s->img->width, s->img->height,
2066 compat_hdc, 0, 0, SRCINVERT);
2067
2068 SelectObject (mask_dc, mask_orig_obj);
2069 DeleteDC (mask_dc);
2070 }
2071 else
2072 {
2073 SetTextColor (hdc, s->gc->foreground);
2074 SetBkColor (hdc, s->gc->background);
2075
2076 BitBlt (hdc, x, y, s->img->width, s->img->height,
2077 compat_hdc, 0, 0, SRCCOPY);
2078
2079 /* When the image has a mask, we can expect that at
2080 least part of a mouse highlight or a block cursor will
2081 be visible. If the image doesn't have a mask, make
2082 a block cursor visible by drawing a rectangle around
2083 the image. I believe it's looking better if we do
2084 nothing here for mouse-face. */
2085 if (s->hl == DRAW_CURSOR)
2086 {
2087 int r = s->img->relief;
2088 if (r < 0) r = -r;
2089 w32_draw_rectangle (hdc, s->gc, x - r, y - r ,
2090 s->img->width + r*2 - 1, s->img->height + r*2 - 1);
2091 }
2092 }
2093
2094 SelectObject (hdc, orig_brush);
2095 DeleteObject (fg_brush);
2096 SelectObject (compat_hdc, orig_obj);
2097 DeleteDC (compat_hdc);
2098 }
2099 else
2100 w32_draw_rectangle (hdc, s->gc, x, y, s->img->width - 1,
2101 s->img->height - 1);
2102
2103 SelectObject (hdc, orig_hdc_obj);
2104 DeleteDC (hdc);
2105 }
2106
2107
2108 /* Draw part of the background of glyph string S. X, Y, W, and H
2109 give the rectangle to draw. */
2110
2111 static void
2112 x_draw_glyph_string_bg_rect (s, x, y, w, h)
2113 struct glyph_string *s;
2114 int x, y, w, h;
2115 {
2116 #if 0 /* TODO: stipple */
2117 if (s->stippled_p)
2118 {
2119 /* Fill background with a stipple pattern. */
2120 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2121 XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
2122 XSetFillStyle (s->display, s->gc, FillSolid);
2123 }
2124 else
2125 #endif
2126 x_clear_glyph_string_rect (s, x, y, w, h);
2127 }
2128
2129
2130 /* Draw image glyph string S.
2131
2132 s->y
2133 s->x +-------------------------
2134 | s->face->box
2135 |
2136 | +-------------------------
2137 | | s->img->vmargin
2138 | |
2139 | | +-------------------
2140 | | | the image
2141
2142 */
2143
2144 static void
2145 x_draw_image_glyph_string (s)
2146 struct glyph_string *s;
2147 {
2148 int x, y;
2149 int box_line_hwidth = abs (s->face->box_line_width);
2150 int box_line_vwidth = max (s->face->box_line_width, 0);
2151 int height;
2152 HBITMAP pixmap = 0;
2153
2154 height = s->height - 2 * box_line_vwidth;
2155
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->img->height
2161 || s->img->hmargin
2162 || s->img->vmargin
2163 || s->img->mask
2164 || s->img->pixmap == 0
2165 || s->width != s->background_width)
2166 {
2167 if (box_line_hwidth && s->first_glyph->left_box_line_p)
2168 x = s->x + box_line_hwidth;
2169 else
2170 x = s->x;
2171
2172 y = s->y + box_line_vwidth;
2173 #if 0 /* TODO: figure out if we need to do this on Windows. */
2174 if (s->img->mask)
2175 {
2176 /* Create a pixmap as large as the glyph string. Fill it
2177 with the background color. Copy the image to it, using
2178 its mask. Copy the temporary pixmap to the display. */
2179 Screen *screen = FRAME_X_SCREEN (s->f);
2180 int depth = DefaultDepthOfScreen (screen);
2181
2182 /* Create a pixmap as large as the glyph string. */
2183 pixmap = XCreatePixmap (s->display, s->window,
2184 s->background_width,
2185 s->height, depth);
2186
2187 /* Don't clip in the following because we're working on the
2188 pixmap. */
2189 XSetClipMask (s->display, s->gc, None);
2190
2191 /* Fill the pixmap with the background color/stipple. */
2192 if (s->stippled_p)
2193 {
2194 /* Fill background with a stipple pattern. */
2195 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2196 XFillRectangle (s->display, pixmap, s->gc,
2197 0, 0, s->background_width, s->height);
2198 XSetFillStyle (s->display, s->gc, FillSolid);
2199 }
2200 else
2201 {
2202 XGCValues xgcv;
2203 XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
2204 &xgcv);
2205 XSetForeground (s->display, s->gc, xgcv.background);
2206 XFillRectangle (s->display, pixmap, s->gc,
2207 0, 0, s->background_width, s->height);
2208 XSetForeground (s->display, s->gc, xgcv.foreground);
2209 }
2210 }
2211 else
2212 #endif
2213 x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
2214
2215 s->background_filled_p = 1;
2216 }
2217
2218 /* Draw the foreground. */
2219 if (pixmap != 0)
2220 {
2221 w32_draw_image_foreground_1 (s, pixmap);
2222 x_set_glyph_string_clipping (s);
2223 {
2224 HDC compat_hdc = CreateCompatibleDC (s->hdc);
2225 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2226 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
2227 HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
2228
2229 SetTextColor (s->hdc, s->gc->foreground);
2230 SetBkColor (s->hdc, s->gc->background);
2231 BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
2232 compat_hdc, 0, 0, SRCCOPY);
2233
2234 SelectObject (s->hdc, orig_brush);
2235 DeleteObject (fg_brush);
2236 SelectObject (compat_hdc, orig_obj);
2237 DeleteDC (compat_hdc);
2238 }
2239 DeleteObject (pixmap);
2240 pixmap = 0;
2241 }
2242 else
2243 x_draw_image_foreground (s);
2244
2245 /* If we must draw a relief around the image, do it. */
2246 if (s->img->relief
2247 || s->hl == DRAW_IMAGE_RAISED
2248 || s->hl == DRAW_IMAGE_SUNKEN)
2249 x_draw_image_relief (s);
2250 }
2251
2252
2253 /* Draw stretch glyph string S. */
2254
2255 static void
2256 x_draw_stretch_glyph_string (s)
2257 struct glyph_string *s;
2258 {
2259 xassert (s->first_glyph->type == STRETCH_GLYPH);
2260 s->stippled_p = s->face->stipple != 0;
2261
2262 if (s->hl == DRAW_CURSOR
2263 && !x_stretch_cursor_p)
2264 {
2265 /* If `x-stretch-block-cursor' is nil, don't draw a block cursor
2266 as wide as the stretch glyph. */
2267 int width = min (FRAME_COLUMN_WIDTH (s->f), s->background_width);
2268
2269 /* Draw cursor. */
2270 x_draw_glyph_string_bg_rect (s, s->x, s->y, width, s->height);
2271
2272 /* Clear rest using the GC of the original non-cursor face. */
2273 if (width < s->background_width)
2274 {
2275 XGCValues *gc = s->face->gc;
2276 int x = s->x + width, y = s->y;
2277 int w = s->background_width - width, h = s->height;
2278 RECT r;
2279 HDC hdc = s->hdc;
2280
2281 if (s->row->mouse_face_p
2282 && cursor_in_mouse_face_p (s->w))
2283 {
2284 x_set_mouse_face_gc (s);
2285 gc = s->gc;
2286 }
2287 else
2288 gc = s->face->gc;
2289
2290 get_glyph_string_clip_rect (s, &r);
2291 w32_set_clip_rectangle (hdc, &r);
2292
2293 #if 0 /* TODO: stipple */
2294 if (s->face->stipple)
2295 {
2296 /* Fill background with a stipple pattern. */
2297 XSetFillStyle (s->display, gc, FillOpaqueStippled);
2298 XFillRectangle (s->display, s->window, gc, x, y, w, h);
2299 XSetFillStyle (s->display, gc, FillSolid);
2300 }
2301 else
2302 #endif
2303 {
2304 w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
2305 }
2306 }
2307 }
2308 else if (!s->background_filled_p)
2309 x_draw_glyph_string_bg_rect (s, s->x, s->y, s->background_width,
2310 s->height);
2311
2312 s->background_filled_p = 1;
2313 }
2314
2315
2316 /* Draw glyph string S. */
2317
2318 static void
2319 x_draw_glyph_string (s)
2320 struct glyph_string *s;
2321 {
2322 int relief_drawn_p = 0;
2323
2324 /* If S draws into the background of its successor, draw the
2325 background of the successor first so that S can draw into it.
2326 This makes S->next use XDrawString instead of XDrawImageString. */
2327 if (s->next && s->right_overhang && !s->for_overlaps_p)
2328 {
2329 xassert (s->next->img == NULL);
2330 x_set_glyph_string_gc (s->next);
2331 x_set_glyph_string_clipping (s->next);
2332 x_draw_glyph_string_background (s->next, 1);
2333 }
2334
2335 /* Set up S->gc, set clipping and draw S. */
2336 x_set_glyph_string_gc (s);
2337
2338 /* Draw relief (if any) in advance for char/composition so that the
2339 glyph string can be drawn over it. */
2340 if (!s->for_overlaps_p
2341 && s->face->box != FACE_NO_BOX
2342 && (s->first_glyph->type == CHAR_GLYPH
2343 || s->first_glyph->type == COMPOSITE_GLYPH))
2344
2345 {
2346 x_set_glyph_string_clipping (s);
2347 x_draw_glyph_string_background (s, 1);
2348 x_draw_glyph_string_box (s);
2349 x_set_glyph_string_clipping (s);
2350 relief_drawn_p = 1;
2351 }
2352 else
2353 x_set_glyph_string_clipping (s);
2354
2355 switch (s->first_glyph->type)
2356 {
2357 case IMAGE_GLYPH:
2358 x_draw_image_glyph_string (s);
2359 break;
2360
2361 case STRETCH_GLYPH:
2362 x_draw_stretch_glyph_string (s);
2363 break;
2364
2365 case CHAR_GLYPH:
2366 if (s->for_overlaps_p)
2367 s->background_filled_p = 1;
2368 else
2369 x_draw_glyph_string_background (s, 0);
2370 x_draw_glyph_string_foreground (s);
2371 break;
2372
2373 case COMPOSITE_GLYPH:
2374 if (s->for_overlaps_p || s->gidx > 0)
2375 s->background_filled_p = 1;
2376 else
2377 x_draw_glyph_string_background (s, 1);
2378 x_draw_composite_glyph_string_foreground (s);
2379 break;
2380
2381 default:
2382 abort ();
2383 }
2384
2385 if (!s->for_overlaps_p)
2386 {
2387 /* Draw underline. */
2388 if (s->face->underline_p
2389 && (s->font->bdf || !s->font->tm.tmUnderlined))
2390 {
2391 unsigned long h = 1;
2392 unsigned long dy = s->height - h;
2393
2394 /* TODO: Use font information for positioning and thickness
2395 of underline. See OUTLINETEXTMETRIC, and xterm.c. */
2396 if (s->face->underline_defaulted_p)
2397 {
2398 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2399 s->y + dy, s->width, 1);
2400 }
2401 else
2402 {
2403 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2404 s->y + dy, s->width, 1);
2405 }
2406 }
2407
2408 /* Draw overline. */
2409 if (s->face->overline_p)
2410 {
2411 unsigned long dy = 0, h = 1;
2412
2413 if (s->face->overline_color_defaulted_p)
2414 {
2415 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2416 s->y + dy, s->width, h);
2417 }
2418 else
2419 {
2420 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2421 s->y + dy, s->width, h);
2422 }
2423 }
2424
2425 /* Draw strike-through. */
2426 if (s->face->strike_through_p
2427 && (s->font->bdf || !s->font->tm.tmStruckOut))
2428 {
2429 unsigned long h = 1;
2430 unsigned long dy = (s->height - h) / 2;
2431
2432 if (s->face->strike_through_color_defaulted_p)
2433 {
2434 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
2435 s->width, h);
2436 }
2437 else
2438 {
2439 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2440 s->y + dy, s->width, h);
2441 }
2442 }
2443
2444 /* Draw relief. */
2445 if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
2446 x_draw_glyph_string_box (s);
2447 }
2448
2449 /* Reset clipping. */
2450 w32_set_clip_rectangle (s->hdc, NULL);
2451 }
2452
2453
2454 /* Shift display to make room for inserted glyphs. */
2455
2456 void
2457 w32_shift_glyphs_for_insert (f, x, y, width, height, shift_by)
2458 struct frame *f;
2459 int x, y, width, height, shift_by;
2460 {
2461 HDC hdc;
2462
2463 hdc = get_frame_dc (f);
2464 BitBlt (hdc, x + shift_by, y, width, height,
2465 hdc, x, y, SRCCOPY);
2466
2467 release_frame_dc (f, hdc);
2468 }
2469
2470
2471 /* Delete N glyphs at the nominal cursor position. Not implemented
2472 for X frames. */
2473
2474 static void
2475 x_delete_glyphs (n)
2476 register int n;
2477 {
2478 struct frame *f;
2479
2480 if (updating_frame)
2481 f = updating_frame;
2482 else
2483 f = SELECTED_FRAME ();
2484
2485 if (! FRAME_W32_P (f))
2486 return;
2487
2488 abort ();
2489 }
2490
2491
2492 /* Clear entire frame. If updating_frame is non-null, clear that
2493 frame. Otherwise clear the selected frame. */
2494
2495 static void
2496 x_clear_frame ()
2497 {
2498 struct frame *f;
2499
2500 if (updating_frame)
2501 f = updating_frame;
2502 else
2503 f = SELECTED_FRAME ();
2504
2505 if (! FRAME_W32_P (f))
2506 return;
2507
2508 /* Clearing the frame will erase any cursor, so mark them all as no
2509 longer visible. */
2510 mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2511 output_cursor.hpos = output_cursor.vpos = 0;
2512 output_cursor.x = -1;
2513
2514 /* We don't set the output cursor here because there will always
2515 follow an explicit cursor_to. */
2516 BLOCK_INPUT;
2517
2518 w32_clear_window (f);
2519
2520 /* We have to clear the scroll bars, too. If we have changed
2521 colors or something like that, then they should be notified. */
2522 x_scroll_bar_clear (f);
2523
2524 UNBLOCK_INPUT;
2525 }
2526
2527 \f
2528 /* Make audible bell. */
2529
2530 static void
2531 w32_ring_bell (void)
2532 {
2533 struct frame *f;
2534
2535 f = SELECTED_FRAME ();
2536
2537 BLOCK_INPUT;
2538
2539 if (FRAME_W32_P (f) && visible_bell)
2540 {
2541 int i;
2542 HWND hwnd = FRAME_W32_WINDOW (SELECTED_FRAME ());
2543
2544 for (i = 0; i < 5; i++)
2545 {
2546 FlashWindow (hwnd, TRUE);
2547 Sleep (10);
2548 }
2549 FlashWindow (hwnd, FALSE);
2550 }
2551 else
2552 w32_sys_ring_bell ();
2553
2554 UNBLOCK_INPUT;
2555 }
2556
2557 \f
2558 /* Specify how many text lines, from the top of the window,
2559 should be affected by insert-lines and delete-lines operations.
2560 This, and those operations, are used only within an update
2561 that is bounded by calls to x_update_begin and x_update_end. */
2562
2563 static void
2564 w32_set_terminal_window (n)
2565 register int n;
2566 {
2567 /* This function intentionally left blank. */
2568 }
2569
2570 \f
2571 /***********************************************************************
2572 Line Dance
2573 ***********************************************************************/
2574
2575 /* Perform an insert-lines or delete-lines operation, inserting N
2576 lines or deleting -N lines at vertical position VPOS. */
2577
2578 static void
2579 x_ins_del_lines (vpos, n)
2580 int vpos, n;
2581 {
2582 struct frame *f;
2583
2584 if (updating_frame)
2585 f = updating_frame;
2586 else
2587 f = SELECTED_FRAME ();
2588
2589 if (! FRAME_W32_P (f))
2590 return;
2591
2592 abort ();
2593 }
2594
2595
2596 /* Scroll part of the display as described by RUN. */
2597
2598 static void
2599 x_scroll_run (w, run)
2600 struct window *w;
2601 struct run *run;
2602 {
2603 struct frame *f = XFRAME (w->frame);
2604 int x, y, width, height, from_y, to_y, bottom_y;
2605 HWND hwnd = FRAME_W32_WINDOW (f);
2606 HRGN expect_dirty;
2607
2608 /* Get frame-relative bounding box of the text display area of W,
2609 without mode lines. Include in this box the left and right
2610 fringes of W. */
2611 window_box (w, -1, &x, &y, &width, &height);
2612
2613 from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2614 to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2615 bottom_y = y + height;
2616
2617 if (to_y < from_y)
2618 {
2619 /* Scrolling up. Make sure we don't copy part of the mode
2620 line at the bottom. */
2621 if (from_y + run->height > bottom_y)
2622 height = bottom_y - from_y;
2623 else
2624 height = run->height;
2625 expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
2626 }
2627 else
2628 {
2629 /* Scolling down. Make sure we don't copy over the mode line.
2630 at the bottom. */
2631 if (to_y + run->height > bottom_y)
2632 height = bottom_y - to_y;
2633 else
2634 height = run->height;
2635 expect_dirty = CreateRectRgn (x, y, x + width, to_y);
2636 }
2637
2638 BLOCK_INPUT;
2639
2640 /* Cursor off. Will be switched on again in x_update_window_end. */
2641 updated_window = w;
2642 x_clear_cursor (w);
2643
2644 {
2645 RECT from;
2646 RECT to;
2647 HRGN dirty = CreateRectRgn (0, 0, 0, 0);
2648 HRGN combined = CreateRectRgn (0, 0, 0, 0);
2649
2650 from.left = to.left = x;
2651 from.right = to.right = x + width;
2652 from.top = from_y;
2653 from.bottom = from_y + height;
2654 to.top = y;
2655 to.bottom = bottom_y;
2656
2657 ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
2658 NULL, SW_INVALIDATE);
2659
2660 /* Combine this with what we expect to be dirty. This covers the
2661 case where not all of the region we expect is actually dirty. */
2662 CombineRgn (combined, dirty, expect_dirty, RGN_OR);
2663
2664 /* If the dirty region is not what we expected, redraw the entire frame. */
2665 if (!EqualRgn (combined, expect_dirty))
2666 SET_FRAME_GARBAGED (f);
2667 }
2668
2669 UNBLOCK_INPUT;
2670 }
2671
2672
2673 \f
2674 /***********************************************************************
2675 Exposure Events
2676 ***********************************************************************/
2677
2678 static void
2679 frame_highlight (f)
2680 struct frame *f;
2681 {
2682 x_update_cursor (f, 1);
2683 }
2684
2685 static void
2686 frame_unhighlight (f)
2687 struct frame *f;
2688 {
2689 x_update_cursor (f, 1);
2690 }
2691
2692 /* The focus has changed. Update the frames as necessary to reflect
2693 the new situation. Note that we can't change the selected frame
2694 here, because the Lisp code we are interrupting might become confused.
2695 Each event gets marked with the frame in which it occurred, so the
2696 Lisp code can tell when the switch took place by examining the events. */
2697
2698 static void
2699 x_new_focus_frame (dpyinfo, frame)
2700 struct w32_display_info *dpyinfo;
2701 struct frame *frame;
2702 {
2703 struct frame *old_focus = dpyinfo->w32_focus_frame;
2704
2705 if (frame != dpyinfo->w32_focus_frame)
2706 {
2707 /* Set this before calling other routines, so that they see
2708 the correct value of w32_focus_frame. */
2709 dpyinfo->w32_focus_frame = frame;
2710
2711 if (old_focus && old_focus->auto_lower)
2712 x_lower_frame (old_focus);
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722 if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
2723 pending_autoraise_frame = dpyinfo->w32_focus_frame;
2724 else
2725 pending_autoraise_frame = 0;
2726 }
2727
2728 x_frame_rehighlight (dpyinfo);
2729 }
2730
2731 /* Handle an event saying the mouse has moved out of an Emacs frame. */
2732
2733 void
2734 x_mouse_leave (dpyinfo)
2735 struct w32_display_info *dpyinfo;
2736 {
2737 x_new_focus_frame (dpyinfo, dpyinfo->w32_focus_event_frame);
2738 }
2739
2740 /* The focus has changed, or we have redirected a frame's focus to
2741 another frame (this happens when a frame uses a surrogate
2742 mini-buffer frame). Shift the highlight as appropriate.
2743
2744 The FRAME argument doesn't necessarily have anything to do with which
2745 frame is being highlighted or un-highlighted; we only use it to find
2746 the appropriate X display info. */
2747
2748 static void
2749 w32_frame_rehighlight (frame)
2750 struct frame *frame;
2751 {
2752 if (! FRAME_W32_P (frame))
2753 return;
2754 x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
2755 }
2756
2757 static void
2758 x_frame_rehighlight (dpyinfo)
2759 struct w32_display_info *dpyinfo;
2760 {
2761 struct frame *old_highlight = dpyinfo->x_highlight_frame;
2762
2763 if (dpyinfo->w32_focus_frame)
2764 {
2765 dpyinfo->x_highlight_frame
2766 = ((GC_FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
2767 ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
2768 : dpyinfo->w32_focus_frame);
2769 if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
2770 {
2771 FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame) = Qnil;
2772 dpyinfo->x_highlight_frame = dpyinfo->w32_focus_frame;
2773 }
2774 }
2775 else
2776 dpyinfo->x_highlight_frame = 0;
2777
2778 if (dpyinfo->x_highlight_frame != old_highlight)
2779 {
2780 if (old_highlight)
2781 frame_unhighlight (old_highlight);
2782 if (dpyinfo->x_highlight_frame)
2783 frame_highlight (dpyinfo->x_highlight_frame);
2784 }
2785 }
2786 \f
2787 /* Keyboard processing - modifier keys, etc. */
2788
2789 /* Convert a keysym to its name. */
2790
2791 char *
2792 x_get_keysym_name (keysym)
2793 int keysym;
2794 {
2795 /* Make static so we can always return it */
2796 static char value[100];
2797
2798 BLOCK_INPUT;
2799 GetKeyNameText (keysym, value, 100);
2800 UNBLOCK_INPUT;
2801
2802 return value;
2803 }
2804
2805
2806 \f
2807 /* Mouse clicks and mouse movement. Rah. */
2808
2809 /* Parse a button MESSAGE. The button index is returned in PBUTTON, and
2810 the state in PUP. XBUTTON provides extra information for extended mouse
2811 button messages. Returns FALSE if unable to parse the message. */
2812 BOOL
2813 parse_button (message, xbutton, pbutton, pup)
2814 int message;
2815 int xbutton;
2816 int * pbutton;
2817 int * pup;
2818 {
2819 int button = 0;
2820 int up = 0;
2821
2822 switch (message)
2823 {
2824 case WM_LBUTTONDOWN:
2825 button = 0;
2826 up = 0;
2827 break;
2828 case WM_LBUTTONUP:
2829 button = 0;
2830 up = 1;
2831 break;
2832 case WM_MBUTTONDOWN:
2833 if (NILP (Vw32_swap_mouse_buttons))
2834 button = 1;
2835 else
2836 button = 2;
2837 up = 0;
2838 break;
2839 case WM_MBUTTONUP:
2840 if (NILP (Vw32_swap_mouse_buttons))
2841 button = 1;
2842 else
2843 button = 2;
2844 up = 1;
2845 break;
2846 case WM_RBUTTONDOWN:
2847 if (NILP (Vw32_swap_mouse_buttons))
2848 button = 2;
2849 else
2850 button = 1;
2851 up = 0;
2852 break;
2853 case WM_RBUTTONUP:
2854 if (NILP (Vw32_swap_mouse_buttons))
2855 button = 2;
2856 else
2857 button = 1;
2858 up = 1;
2859 break;
2860 case WM_XBUTTONDOWN:
2861 button = xbutton + 2;
2862 up = 0;
2863 break;
2864 case WM_XBUTTONUP:
2865 button = xbutton + 2;
2866 up = 1;
2867 break;
2868 default:
2869 return (FALSE);
2870 }
2871
2872 if (pup) *pup = up;
2873 if (pbutton) *pbutton = button;
2874
2875 return (TRUE);
2876 }
2877
2878
2879 /* Prepare a mouse-event in *RESULT for placement in the input queue.
2880
2881 If the event is a button press, then note that we have grabbed
2882 the mouse. */
2883
2884 static Lisp_Object
2885 construct_mouse_click (result, msg, f)
2886 struct input_event *result;
2887 W32Msg *msg;
2888 struct frame *f;
2889 {
2890 int button;
2891 int up;
2892
2893 parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
2894 &button, &up);
2895
2896 /* Make the event type NO_EVENT; we'll change that when we decide
2897 otherwise. */
2898 result->kind = MOUSE_CLICK_EVENT;
2899 result->code = button;
2900 result->timestamp = msg->msg.time;
2901 result->modifiers = (msg->dwModifiers
2902 | (up
2903 ? up_modifier
2904 : down_modifier));
2905
2906 XSETINT (result->x, LOWORD (msg->msg.lParam));
2907 XSETINT (result->y, HIWORD (msg->msg.lParam));
2908 XSETFRAME (result->frame_or_window, f);
2909 result->arg = Qnil;
2910 return Qnil;
2911 }
2912
2913 static Lisp_Object
2914 construct_mouse_wheel (result, msg, f)
2915 struct input_event *result;
2916 W32Msg *msg;
2917 struct frame *f;
2918 {
2919 POINT p;
2920 int delta;
2921
2922 result->kind = WHEEL_EVENT;
2923 result->code = 0;
2924 result->timestamp = msg->msg.time;
2925
2926 /* A WHEEL_DELTA positive value indicates that the wheel was rotated
2927 forward, away from the user (up); a negative value indicates that
2928 the wheel was rotated backward, toward the user (down). */
2929 delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
2930
2931 /* The up and down modifiers indicate if the wheel was rotated up or
2932 down based on WHEEL_DELTA value. */
2933 result->modifiers = (msg->dwModifiers
2934 | ((delta < 0 ) ? down_modifier : up_modifier));
2935
2936 p.x = LOWORD (msg->msg.lParam);
2937 p.y = HIWORD (msg->msg.lParam);
2938 ScreenToClient (msg->msg.hwnd, &p);
2939 XSETINT (result->x, p.x);
2940 XSETINT (result->y, p.y);
2941 XSETFRAME (result->frame_or_window, f);
2942 result->arg = Qnil;
2943 return Qnil;
2944 }
2945
2946 static Lisp_Object
2947 construct_drag_n_drop (result, msg, f)
2948 struct input_event *result;
2949 W32Msg *msg;
2950 struct frame *f;
2951 {
2952 Lisp_Object files;
2953 Lisp_Object frame;
2954 HDROP hdrop;
2955 POINT p;
2956 WORD num_files;
2957 char *name;
2958 int i, len;
2959
2960 result->kind = DRAG_N_DROP_EVENT;
2961 result->code = 0;
2962 result->timestamp = msg->msg.time;
2963 result->modifiers = msg->dwModifiers;
2964
2965 hdrop = (HDROP) msg->msg.wParam;
2966 DragQueryPoint (hdrop, &p);
2967
2968 #if 0
2969 p.x = LOWORD (msg->msg.lParam);
2970 p.y = HIWORD (msg->msg.lParam);
2971 ScreenToClient (msg->msg.hwnd, &p);
2972 #endif
2973
2974 XSETINT (result->x, p.x);
2975 XSETINT (result->y, p.y);
2976
2977 num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
2978 files = Qnil;
2979
2980 for (i = 0; i < num_files; i++)
2981 {
2982 len = DragQueryFile (hdrop, i, NULL, 0);
2983 if (len <= 0)
2984 continue;
2985 name = alloca (len + 1);
2986 DragQueryFile (hdrop, i, name, len + 1);
2987 files = Fcons (DECODE_FILE (build_string (name)), files);
2988 }
2989
2990 DragFinish (hdrop);
2991
2992 XSETFRAME (frame, f);
2993 result->frame_or_window = Fcons (frame, files);
2994 result->arg = Qnil;
2995 return Qnil;
2996 }
2997
2998 \f
2999 /* Function to report a mouse movement to the mainstream Emacs code.
3000 The input handler calls this.
3001
3002 We have received a mouse movement event, which is given in *event.
3003 If the mouse is over a different glyph than it was last time, tell
3004 the mainstream emacs code by setting mouse_moved. If not, ask for
3005 another motion event, so we can check again the next time it moves. */
3006
3007 static MSG last_mouse_motion_event;
3008 static Lisp_Object last_mouse_motion_frame;
3009
3010 static void remember_mouse_glyph P_ ((struct frame *, int, int));
3011
3012 static void
3013 note_mouse_movement (frame, msg)
3014 FRAME_PTR frame;
3015 MSG *msg;
3016 {
3017 int mouse_x = LOWORD (msg->lParam);
3018 int mouse_y = HIWORD (msg->lParam);
3019
3020 last_mouse_movement_time = msg->time;
3021 memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
3022 XSETFRAME (last_mouse_motion_frame, frame);
3023
3024 if (msg->hwnd != FRAME_W32_WINDOW (frame))
3025 {
3026 frame->mouse_moved = 1;
3027 last_mouse_scroll_bar = Qnil;
3028 note_mouse_highlight (frame, -1, -1);
3029 }
3030
3031 /* Has the mouse moved off the glyph it was on at the last sighting? */
3032 else if (mouse_x < last_mouse_glyph.left
3033 || mouse_x > last_mouse_glyph.right
3034 || mouse_y < last_mouse_glyph.top
3035 || mouse_y > last_mouse_glyph.bottom)
3036 {
3037 frame->mouse_moved = 1;
3038 last_mouse_scroll_bar = Qnil;
3039 note_mouse_highlight (frame, mouse_x, mouse_y);
3040 /* Remember the mouse position here, as w32_mouse_position only
3041 gets called when mouse tracking is enabled but we also need
3042 to keep track of the mouse for help_echo and highlighting at
3043 other times. */
3044 remember_mouse_glyph (frame, mouse_x, mouse_y);
3045 }
3046 }
3047
3048 \f
3049 /************************************************************************
3050 Mouse Face
3051 ************************************************************************/
3052
3053 static struct scroll_bar *x_window_to_scroll_bar ();
3054 static void x_scroll_bar_report_motion ();
3055 static void x_check_fullscreen P_ ((struct frame *));
3056 static void x_check_fullscreen_move P_ ((struct frame *));
3057 static int glyph_rect P_ ((struct frame *f, int, int, RECT *));
3058
3059
3060 static void
3061 redo_mouse_highlight ()
3062 {
3063 if (!NILP (last_mouse_motion_frame)
3064 && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame)))
3065 note_mouse_highlight (XFRAME (last_mouse_motion_frame),
3066 LOWORD (last_mouse_motion_event.lParam),
3067 HIWORD (last_mouse_motion_event.lParam));
3068 }
3069
3070 void
3071 w32_define_cursor (window, cursor)
3072 Window window;
3073 Cursor cursor;
3074 {
3075 PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
3076 }
3077
3078 /* Try to determine frame pixel position and size of the glyph under
3079 frame pixel coordinates X/Y on frame F . Return the position and
3080 size in *RECT. Value is non-zero if we could compute these
3081 values. */
3082
3083 static int
3084 glyph_rect (f, x, y, rect)
3085 struct frame *f;
3086 int x, y;
3087 RECT *rect;
3088 {
3089 Lisp_Object window;
3090
3091 window = window_from_coordinates (f, x, y, 0, &x, &y, 0);
3092
3093 if (!NILP (window))
3094 {
3095 struct window *w = XWINDOW (window);
3096 struct glyph_row *r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
3097 struct glyph_row *end = r + w->current_matrix->nrows - 1;
3098
3099 for (; r < end && r->enabled_p; ++r)
3100 if (r->y <= y && r->y + r->height > y)
3101 {
3102 /* Found the row at y. */
3103 struct glyph *g = r->glyphs[TEXT_AREA];
3104 struct glyph *end = g + r->used[TEXT_AREA];
3105 int gx;
3106
3107 rect->top = WINDOW_TO_FRAME_PIXEL_Y (w, r->y);
3108 rect->bottom = rect->top + r->height;
3109
3110 if (x < r->x)
3111 {
3112 /* x is to the left of the first glyph in the row. */
3113 /* Shouldn't this be a pixel value?
3114 WINDOW_LEFT_EDGE_X (w) seems to be the right value.
3115 ++KFS */
3116 rect->left = WINDOW_LEFT_EDGE_COL (w);
3117 rect->right = WINDOW_TO_FRAME_PIXEL_X (w, r->x);
3118 return 1;
3119 }
3120
3121 for (gx = r->x; g < end; gx += g->pixel_width, ++g)
3122 if (gx <= x && gx + g->pixel_width > x)
3123 {
3124 /* x is on a glyph. */
3125 rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
3126 rect->right = rect->left + g->pixel_width;
3127 return 1;
3128 }
3129
3130 /* x is to the right of the last glyph in the row. */
3131 rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
3132 /* Shouldn't this be a pixel value?
3133 WINDOW_RIGHT_EDGE_X (w) seems to be the right value.
3134 ++KFS */
3135 rect->right = WINDOW_RIGHT_EDGE_COL (w);
3136 return 1;
3137 }
3138 }
3139
3140 /* The y is not on any row. */
3141 return 0;
3142 }
3143
3144 /* Record the position of the mouse in last_mouse_glyph. */
3145 static void
3146 remember_mouse_glyph (f1, gx, gy)
3147 struct frame * f1;
3148 int gx, gy;
3149 {
3150 if (!glyph_rect (f1, gx, gy, &last_mouse_glyph))
3151 {
3152 int width = FRAME_SMALLEST_CHAR_WIDTH (f1);
3153 int height = FRAME_SMALLEST_FONT_HEIGHT (f1);
3154
3155 /* Arrange for the division in FRAME_PIXEL_X_TO_COL etc. to
3156 round down even for negative values. */
3157 if (gx < 0)
3158 gx -= width - 1;
3159 if (gy < 0)
3160 gy -= height - 1;
3161 #if 0
3162 /* This was the original code from XTmouse_position, but it seems
3163 to give the position of the glyph diagonally next to the one
3164 the mouse is over. */
3165 gx = (gx + width - 1) / width * width;
3166 gy = (gy + height - 1) / height * height;
3167 #else
3168 gx = gx / width * width;
3169 gy = gy / height * height;
3170 #endif
3171
3172 last_mouse_glyph.left = gx;
3173 last_mouse_glyph.top = gy;
3174 last_mouse_glyph.right = gx + width;
3175 last_mouse_glyph.bottom = gy + height;
3176 }
3177 }
3178
3179 /* Return the current position of the mouse.
3180 *fp should be a frame which indicates which display to ask about.
3181
3182 If the mouse movement started in a scroll bar, set *fp, *bar_window,
3183 and *part to the frame, window, and scroll bar part that the mouse
3184 is over. Set *x and *y to the portion and whole of the mouse's
3185 position on the scroll bar.
3186
3187 If the mouse movement started elsewhere, set *fp to the frame the
3188 mouse is on, *bar_window to nil, and *x and *y to the character cell
3189 the mouse is over.
3190
3191 Set *time to the server time-stamp for the time at which the mouse
3192 was at this position.
3193
3194 Don't store anything if we don't have a valid set of values to report.
3195
3196 This clears the mouse_moved flag, so we can wait for the next mouse
3197 movement. */
3198
3199 static void
3200 w32_mouse_position (fp, insist, bar_window, part, x, y, time)
3201 FRAME_PTR *fp;
3202 int insist;
3203 Lisp_Object *bar_window;
3204 enum scroll_bar_part *part;
3205 Lisp_Object *x, *y;
3206 unsigned long *time;
3207 {
3208 FRAME_PTR f1;
3209
3210 BLOCK_INPUT;
3211
3212 if (! NILP (last_mouse_scroll_bar) && insist == 0)
3213 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time);
3214 else
3215 {
3216 POINT pt;
3217
3218 Lisp_Object frame, tail;
3219
3220 /* Clear the mouse-moved flag for every frame on this display. */
3221 FOR_EACH_FRAME (tail, frame)
3222 XFRAME (frame)->mouse_moved = 0;
3223
3224 last_mouse_scroll_bar = Qnil;
3225
3226 GetCursorPos (&pt);
3227
3228 /* Now we have a position on the root; find the innermost window
3229 containing the pointer. */
3230 {
3231 if (FRAME_W32_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame
3232 && FRAME_LIVE_P (last_mouse_frame))
3233 {
3234 /* If mouse was grabbed on a frame, give coords for that frame
3235 even if the mouse is now outside it. */
3236 f1 = last_mouse_frame;
3237 }
3238 else
3239 {
3240 /* Is window under mouse one of our frames? */
3241 f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
3242 WindowFromPoint (pt));
3243 }
3244
3245 /* If not, is it one of our scroll bars? */
3246 if (! f1)
3247 {
3248 struct scroll_bar *bar
3249 = x_window_to_scroll_bar (WindowFromPoint (pt));
3250
3251 if (bar)
3252 {
3253 f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3254 }
3255 }
3256
3257 if (f1 == 0 && insist > 0)
3258 f1 = SELECTED_FRAME ();
3259
3260 if (f1)
3261 {
3262 /* Ok, we found a frame. Store all the values.
3263 last_mouse_glyph is a rectangle used to reduce the
3264 generation of mouse events. To not miss any motion
3265 events, we must divide the frame into rectangles of the
3266 size of the smallest character that could be displayed
3267 on it, i.e. into the same rectangles that matrices on
3268 the frame are divided into. */
3269
3270 #if OLD_REDISPLAY_CODE
3271 int ignore1, ignore2;
3272
3273 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3274
3275 pixel_to_glyph_coords (f1, pt.x, pt.y, &ignore1, &ignore2,
3276 &last_mouse_glyph,
3277 FRAME_W32_DISPLAY_INFO (f1)->grabbed
3278 || insist);
3279 #else
3280 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3281 remember_mouse_glyph (f1, pt.x, pt.y);
3282 #endif
3283
3284 *bar_window = Qnil;
3285 *part = 0;
3286 *fp = f1;
3287 XSETINT (*x, pt.x);
3288 XSETINT (*y, pt.y);
3289 *time = last_mouse_movement_time;
3290 }
3291 }
3292 }
3293
3294 UNBLOCK_INPUT;
3295 }
3296
3297 \f
3298 /***********************************************************************
3299 Tool-bars
3300 ***********************************************************************/
3301
3302 /* Handle mouse button event on the tool-bar of frame F, at
3303 frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress
3304 or ButtonRelase. */
3305
3306 static void
3307 w32_handle_tool_bar_click (f, button_event)
3308 struct frame *f;
3309 struct input_event *button_event;
3310 {
3311 int x = XFASTINT (button_event->x);
3312 int y = XFASTINT (button_event->y);
3313
3314 if (button_event->modifiers & down_modifier)
3315 handle_tool_bar_click (f, x, y, 1, 0);
3316 else
3317 handle_tool_bar_click (f, x, y, 0,
3318 button_event->modifiers & ~up_modifier);
3319 }
3320
3321
3322 \f
3323 /***********************************************************************
3324 Scroll bars
3325 ***********************************************************************/
3326
3327 /* Scroll bar support. */
3328
3329 /* Given a window ID, find the struct scroll_bar which manages it.
3330 This can be called in GC, so we have to make sure to strip off mark
3331 bits. */
3332
3333 static struct scroll_bar *
3334 x_window_to_scroll_bar (window_id)
3335 Window window_id;
3336 {
3337 Lisp_Object tail;
3338
3339 for (tail = Vframe_list;
3340 XGCTYPE (tail) == Lisp_Cons;
3341 tail = XCDR (tail))
3342 {
3343 Lisp_Object frame, bar, condemned;
3344
3345 frame = XCAR (tail);
3346 /* All elements of Vframe_list should be frames. */
3347 if (! GC_FRAMEP (frame))
3348 abort ();
3349
3350 /* Scan this frame's scroll bar list for a scroll bar with the
3351 right window ID. */
3352 condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
3353 for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
3354 /* This trick allows us to search both the ordinary and
3355 condemned scroll bar lists with one loop. */
3356 ! GC_NILP (bar) || (bar = condemned,
3357 condemned = Qnil,
3358 ! GC_NILP (bar));
3359 bar = XSCROLL_BAR (bar)->next)
3360 if (SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
3361 return XSCROLL_BAR (bar);
3362 }
3363
3364 return 0;
3365 }
3366
3367
3368 \f
3369 /* Set the thumb size and position of scroll bar BAR. We are currently
3370 displaying PORTION out of a whole WHOLE, and our position POSITION. */
3371
3372 static void
3373 w32_set_scroll_bar_thumb (bar, portion, position, whole)
3374 struct scroll_bar *bar;
3375 int portion, position, whole;
3376 {
3377 Window w = SCROLL_BAR_W32_WINDOW (bar);
3378 double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3379 int sb_page, sb_pos;
3380 BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
3381
3382 if (whole)
3383 {
3384 /* Position scroll bar at rock bottom if the bottom of the
3385 buffer is visible. This avoids shinking the thumb away
3386 to nothing if it is held at the bottom of the buffer. */
3387 if (position + portion >= whole)
3388 {
3389 sb_page = range * (whole - position) / whole
3390 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3391 sb_pos = range;
3392 }
3393
3394 sb_page = portion * range / whole + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3395 sb_pos = position * range / whole;
3396 }
3397 else
3398 {
3399 sb_page = range;
3400 sb_pos = 0;
3401 }
3402
3403 BLOCK_INPUT;
3404
3405 if (pfnSetScrollInfo)
3406 {
3407 SCROLLINFO si;
3408
3409 si.cbSize = sizeof (si);
3410 /* Only update page size if currently dragging, to reduce
3411 flicker effects. */
3412 if (draggingp)
3413 si.fMask = SIF_PAGE;
3414 else
3415 si.fMask = SIF_PAGE | SIF_POS;
3416 si.nPage = sb_page;
3417 si.nPos = sb_pos;
3418
3419 pfnSetScrollInfo (w, SB_CTL, &si, !draggingp);
3420 }
3421 else
3422 SetScrollPos (w, SB_CTL, sb_pos, !draggingp);
3423
3424 UNBLOCK_INPUT;
3425 }
3426
3427 \f
3428 /************************************************************************
3429 Scroll bars, general
3430 ************************************************************************/
3431
3432 HWND
3433 my_create_scrollbar (f, bar)
3434 struct frame * f;
3435 struct scroll_bar * bar;
3436 {
3437 return (HWND) SendMessage (FRAME_W32_WINDOW (f),
3438 WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
3439 (LPARAM) bar);
3440 }
3441
3442 /*#define ATTACH_THREADS*/
3443
3444 BOOL
3445 my_show_window (FRAME_PTR f, HWND hwnd, int how)
3446 {
3447 #ifndef ATTACH_THREADS
3448 return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
3449 (WPARAM) hwnd, (LPARAM) how);
3450 #else
3451 return ShowWindow (hwnd, how);
3452 #endif
3453 }
3454
3455 void
3456 my_set_window_pos (HWND hwnd, HWND hwndAfter,
3457 int x, int y, int cx, int cy, UINT flags)
3458 {
3459 #ifndef ATTACH_THREADS
3460 WINDOWPOS pos;
3461 pos.hwndInsertAfter = hwndAfter;
3462 pos.x = x;
3463 pos.y = y;
3464 pos.cx = cx;
3465 pos.cy = cy;
3466 pos.flags = flags;
3467 SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
3468 #else
3469 SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
3470 #endif
3471 }
3472
3473 void
3474 my_set_focus (f, hwnd)
3475 struct frame * f;
3476 HWND hwnd;
3477 {
3478 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
3479 (WPARAM) hwnd, 0);
3480 }
3481
3482 void
3483 my_set_foreground_window (hwnd)
3484 HWND hwnd;
3485 {
3486 SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
3487 }
3488
3489 void
3490 my_destroy_window (f, hwnd)
3491 struct frame * f;
3492 HWND hwnd;
3493 {
3494 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
3495 (WPARAM) hwnd, 0);
3496 }
3497
3498 /* Create a scroll bar and return the scroll bar vector for it. W is
3499 the Emacs window on which to create the scroll bar. TOP, LEFT,
3500 WIDTH and HEIGHT are.the pixel coordinates and dimensions of the
3501 scroll bar. */
3502
3503 static struct scroll_bar *
3504 x_scroll_bar_create (w, top, left, width, height)
3505 struct window *w;
3506 int top, left, width, height;
3507 {
3508 struct frame *f = XFRAME (WINDOW_FRAME (w));
3509 HWND hwnd;
3510 struct scroll_bar *bar
3511 = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
3512
3513 BLOCK_INPUT;
3514
3515 XSETWINDOW (bar->window, w);
3516 XSETINT (bar->top, top);
3517 XSETINT (bar->left, left);
3518 XSETINT (bar->width, width);
3519 XSETINT (bar->height, height);
3520 XSETINT (bar->start, 0);
3521 XSETINT (bar->end, 0);
3522 bar->dragging = Qnil;
3523
3524 /* Requires geometry to be set before call to create the real window */
3525
3526 hwnd = my_create_scrollbar (f, bar);
3527
3528 if (pfnSetScrollInfo)
3529 {
3530 SCROLLINFO si;
3531
3532 si.cbSize = sizeof (si);
3533 si.fMask = SIF_ALL;
3534 si.nMin = 0;
3535 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3536 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3537 si.nPage = si.nMax;
3538 si.nPos = 0;
3539
3540 pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3541 }
3542 else
3543 {
3544 SetScrollRange (hwnd, SB_CTL, 0,
3545 VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
3546 SetScrollPos (hwnd, SB_CTL, 0, FALSE);
3547 }
3548
3549 SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
3550
3551 /* Add bar to its frame's list of scroll bars. */
3552 bar->next = FRAME_SCROLL_BARS (f);
3553 bar->prev = Qnil;
3554 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3555 if (! NILP (bar->next))
3556 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3557
3558 UNBLOCK_INPUT;
3559
3560 return bar;
3561 }
3562
3563
3564 /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
3565 nil. */
3566
3567 static void
3568 x_scroll_bar_remove (bar)
3569 struct scroll_bar *bar;
3570 {
3571 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3572
3573 BLOCK_INPUT;
3574
3575 /* Destroy the window. */
3576 my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
3577
3578 /* Disassociate this scroll bar from its window. */
3579 XWINDOW (bar->window)->vertical_scroll_bar = Qnil;
3580
3581 UNBLOCK_INPUT;
3582 }
3583
3584 /* Set the handle of the vertical scroll bar for WINDOW to indicate
3585 that we are displaying PORTION characters out of a total of WHOLE
3586 characters, starting at POSITION. If WINDOW has no scroll bar,
3587 create one. */
3588 static void
3589 w32_set_vertical_scroll_bar (w, portion, whole, position)
3590 struct window *w;
3591 int portion, whole, position;
3592 {
3593 struct frame *f = XFRAME (w->frame);
3594 struct scroll_bar *bar;
3595 int top, height, left, sb_left, width, sb_width;
3596 int window_y, window_height;
3597
3598 /* Get window dimensions. */
3599 window_box (w, -1, 0, &window_y, 0, &window_height);
3600 top = window_y;
3601 width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f);
3602 height = window_height;
3603
3604 /* Compute the left edge of the scroll bar area. */
3605 left = WINDOW_SCROLL_BAR_AREA_X (w);
3606
3607 /* Compute the width of the scroll bar which might be less than
3608 the width of the area reserved for the scroll bar. */
3609 if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0)
3610 sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
3611 else
3612 sb_width = width;
3613
3614 /* Compute the left edge of the scroll bar. */
3615 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
3616 sb_left = left + width - sb_width - (width - sb_width) / 2;
3617 else
3618 sb_left = left + (width - sb_width) / 2;
3619
3620 /* Does the scroll bar exist yet? */
3621 if (NILP (w->vertical_scroll_bar))
3622 {
3623 HDC hdc;
3624 BLOCK_INPUT;
3625 if (width > 0 && height > 0)
3626 {
3627 hdc = get_frame_dc (f);
3628 w32_clear_area (f, hdc, left, top, width, height);
3629 release_frame_dc (f, hdc);
3630 }
3631 UNBLOCK_INPUT;
3632
3633 bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
3634 }
3635 else
3636 {
3637 /* It may just need to be moved and resized. */
3638 HWND hwnd;
3639
3640 bar = XSCROLL_BAR (w->vertical_scroll_bar);
3641 hwnd = SCROLL_BAR_W32_WINDOW (bar);
3642
3643 /* If already correctly positioned, do nothing. */
3644 if ( XINT (bar->left) == sb_left
3645 && XINT (bar->top) == top
3646 && XINT (bar->width) == sb_width
3647 && XINT (bar->height) == height )
3648 {
3649 /* Redraw after clear_frame. */
3650 if (!my_show_window (f, hwnd, SW_NORMAL))
3651 InvalidateRect (hwnd, NULL, FALSE);
3652 }
3653 else
3654 {
3655 HDC hdc;
3656 BLOCK_INPUT;
3657 if (width && height)
3658 {
3659 hdc = get_frame_dc (f);
3660 /* Since Windows scroll bars are smaller than the space reserved
3661 for them on the frame, we have to clear "under" them. */
3662 w32_clear_area (f, hdc,
3663 left,
3664 top,
3665 width,
3666 height);
3667 release_frame_dc (f, hdc);
3668 }
3669 /* Make sure scroll bar is "visible" before moving, to ensure the
3670 area of the parent window now exposed will be refreshed. */
3671 my_show_window (f, hwnd, SW_HIDE);
3672 MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
3673 top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
3674 max (height, 1), TRUE);
3675 if (pfnSetScrollInfo)
3676 {
3677 SCROLLINFO si;
3678
3679 si.cbSize = sizeof (si);
3680 si.fMask = SIF_RANGE;
3681 si.nMin = 0;
3682 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3683 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3684
3685 pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3686 }
3687 else
3688 SetScrollRange (hwnd, SB_CTL, 0,
3689 VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
3690 my_show_window (f, hwnd, SW_NORMAL);
3691 /* InvalidateRect (w, NULL, FALSE); */
3692
3693 /* Remember new settings. */
3694 XSETINT (bar->left, sb_left);
3695 XSETINT (bar->top, top);
3696 XSETINT (bar->width, sb_width);
3697 XSETINT (bar->height, height);
3698
3699 UNBLOCK_INPUT;
3700 }
3701 }
3702 w32_set_scroll_bar_thumb (bar, portion, position, whole);
3703
3704 XSETVECTOR (w->vertical_scroll_bar, bar);
3705 }
3706
3707
3708 /* The following three hooks are used when we're doing a thorough
3709 redisplay of the frame. We don't explicitly know which scroll bars
3710 are going to be deleted, because keeping track of when windows go
3711 away is a real pain - "Can you say set-window-configuration, boys
3712 and girls?" Instead, we just assert at the beginning of redisplay
3713 that *all* scroll bars are to be removed, and then save a scroll bar
3714 from the fiery pit when we actually redisplay its window. */
3715
3716 /* Arrange for all scroll bars on FRAME to be removed at the next call
3717 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
3718 `*redeem_scroll_bar_hook' is applied to its window before the judgment. */
3719
3720 static void
3721 w32_condemn_scroll_bars (frame)
3722 FRAME_PTR frame;
3723 {
3724 /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
3725 while (! NILP (FRAME_SCROLL_BARS (frame)))
3726 {
3727 Lisp_Object bar;
3728 bar = FRAME_SCROLL_BARS (frame);
3729 FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next;
3730 XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
3731 XSCROLL_BAR (bar)->prev = Qnil;
3732 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
3733 XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
3734 FRAME_CONDEMNED_SCROLL_BARS (frame) = bar;
3735 }
3736 }
3737
3738
3739 /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
3740 Note that WINDOW isn't necessarily condemned at all. */
3741
3742 static void
3743 w32_redeem_scroll_bar (window)
3744 struct window *window;
3745 {
3746 struct scroll_bar *bar;
3747 struct frame *f;
3748
3749 /* We can't redeem this window's scroll bar if it doesn't have one. */
3750 if (NILP (window->vertical_scroll_bar))
3751 abort ();
3752
3753 bar = XSCROLL_BAR (window->vertical_scroll_bar);
3754
3755 /* Unlink it from the condemned list. */
3756 f = XFRAME (WINDOW_FRAME (window));
3757 if (NILP (bar->prev))
3758 {
3759 /* If the prev pointer is nil, it must be the first in one of
3760 the lists. */
3761 if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
3762 /* It's not condemned. Everything's fine. */
3763 return;
3764 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
3765 window->vertical_scroll_bar))
3766 FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next;
3767 else
3768 /* If its prev pointer is nil, it must be at the front of
3769 one or the other! */
3770 abort ();
3771 }
3772 else
3773 XSCROLL_BAR (bar->prev)->next = bar->next;
3774
3775 if (! NILP (bar->next))
3776 XSCROLL_BAR (bar->next)->prev = bar->prev;
3777
3778 bar->next = FRAME_SCROLL_BARS (f);
3779 bar->prev = Qnil;
3780 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3781 if (! NILP (bar->next))
3782 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3783 }
3784
3785 /* Remove all scroll bars on FRAME that haven't been saved since the
3786 last call to `*condemn_scroll_bars_hook'. */
3787
3788 static void
3789 w32_judge_scroll_bars (f)
3790 FRAME_PTR f;
3791 {
3792 Lisp_Object bar, next;
3793
3794 bar = FRAME_CONDEMNED_SCROLL_BARS (f);
3795
3796 /* Clear out the condemned list now so we won't try to process any
3797 more events on the hapless scroll bars. */
3798 FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil;
3799
3800 for (; ! NILP (bar); bar = next)
3801 {
3802 struct scroll_bar *b = XSCROLL_BAR (bar);
3803
3804 x_scroll_bar_remove (b);
3805
3806 next = b->next;
3807 b->next = b->prev = Qnil;
3808 }
3809
3810 /* Now there should be no references to the condemned scroll bars,
3811 and they should get garbage-collected. */
3812 }
3813
3814 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
3815 is set to something other than NO_EVENT, it is enqueued.
3816
3817 This may be called from a signal handler, so we have to ignore GC
3818 mark bits. */
3819
3820 static int
3821 w32_scroll_bar_handle_click (bar, msg, emacs_event)
3822 struct scroll_bar *bar;
3823 W32Msg *msg;
3824 struct input_event *emacs_event;
3825 {
3826 if (! GC_WINDOWP (bar->window))
3827 abort ();
3828
3829 emacs_event->kind = W32_SCROLL_BAR_CLICK_EVENT;
3830 emacs_event->code = 0;
3831 /* not really meaningful to distinguish up/down */
3832 emacs_event->modifiers = msg->dwModifiers;
3833 emacs_event->frame_or_window = bar->window;
3834 emacs_event->arg = Qnil;
3835 emacs_event->timestamp = msg->msg.time;
3836
3837 {
3838 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3839 int y;
3840 int dragging = !NILP (bar->dragging);
3841
3842 if (pfnGetScrollInfo)
3843 {
3844 SCROLLINFO si;
3845
3846 si.cbSize = sizeof (si);
3847 si.fMask = SIF_POS;
3848
3849 pfnGetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
3850 y = si.nPos;
3851 }
3852 else
3853 y = GetScrollPos ((HWND) msg->msg.lParam, SB_CTL);
3854
3855 bar->dragging = Qnil;
3856
3857
3858 last_mouse_scroll_bar_pos = msg->msg.wParam;
3859
3860 switch (LOWORD (msg->msg.wParam))
3861 {
3862 case SB_LINEDOWN:
3863 emacs_event->part = scroll_bar_down_arrow;
3864 break;
3865 case SB_LINEUP:
3866 emacs_event->part = scroll_bar_up_arrow;
3867 break;
3868 case SB_PAGEUP:
3869 emacs_event->part = scroll_bar_above_handle;
3870 break;
3871 case SB_PAGEDOWN:
3872 emacs_event->part = scroll_bar_below_handle;
3873 break;
3874 case SB_TOP:
3875 emacs_event->part = scroll_bar_handle;
3876 y = 0;
3877 break;
3878 case SB_BOTTOM:
3879 emacs_event->part = scroll_bar_handle;
3880 y = top_range;
3881 break;
3882 case SB_THUMBTRACK:
3883 case SB_THUMBPOSITION:
3884 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3885 y = HIWORD (msg->msg.wParam);
3886 bar->dragging = Qt;
3887 emacs_event->part = scroll_bar_handle;
3888
3889 /* "Silently" update current position. */
3890 if (pfnSetScrollInfo)
3891 {
3892 SCROLLINFO si;
3893
3894 si.cbSize = sizeof (si);
3895 si.fMask = SIF_POS;
3896 si.nPos = y;
3897 /* Remember apparent position (we actually lag behind the real
3898 position, so don't set that directly. */
3899 last_scroll_bar_drag_pos = y;
3900
3901 pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
3902 }
3903 else
3904 SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, FALSE);
3905 break;
3906 case SB_ENDSCROLL:
3907 /* If this is the end of a drag sequence, then reset the scroll
3908 handle size to normal and do a final redraw. Otherwise do
3909 nothing. */
3910 if (dragging)
3911 {
3912 if (pfnSetScrollInfo)
3913 {
3914 SCROLLINFO si;
3915 int start = XINT (bar->start);
3916 int end = XINT (bar->end);
3917
3918 si.cbSize = sizeof (si);
3919 si.fMask = SIF_PAGE | SIF_POS;
3920 si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3921 si.nPos = last_scroll_bar_drag_pos;
3922 pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
3923 }
3924 else
3925 SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, TRUE);
3926 }
3927 /* fall through */
3928 default:
3929 emacs_event->kind = NO_EVENT;
3930 return FALSE;
3931 }
3932
3933 XSETINT (emacs_event->x, y);
3934 XSETINT (emacs_event->y, top_range);
3935
3936 return TRUE;
3937 }
3938 }
3939
3940 /* Return information to the user about the current position of the mouse
3941 on the scroll bar. */
3942
3943 static void
3944 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time)
3945 FRAME_PTR *fp;
3946 Lisp_Object *bar_window;
3947 enum scroll_bar_part *part;
3948 Lisp_Object *x, *y;
3949 unsigned long *time;
3950 {
3951 struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
3952 Window w = SCROLL_BAR_W32_WINDOW (bar);
3953 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3954 int pos;
3955 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3956
3957 BLOCK_INPUT;
3958
3959 *fp = f;
3960 *bar_window = bar->window;
3961
3962 if (pfnGetScrollInfo)
3963 {
3964 SCROLLINFO si;
3965
3966 si.cbSize = sizeof (si);
3967 si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
3968
3969 pfnGetScrollInfo (w, SB_CTL, &si);
3970 pos = si.nPos;
3971 top_range = si.nMax - si.nPage + 1;
3972 }
3973 else
3974 pos = GetScrollPos (w, SB_CTL);
3975
3976 switch (LOWORD (last_mouse_scroll_bar_pos))
3977 {
3978 case SB_THUMBPOSITION:
3979 case SB_THUMBTRACK:
3980 *part = scroll_bar_handle;
3981 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3982 pos = HIWORD (last_mouse_scroll_bar_pos);
3983 break;
3984 case SB_LINEDOWN:
3985 *part = scroll_bar_handle;
3986 pos++;
3987 break;
3988 default:
3989 *part = scroll_bar_handle;
3990 break;
3991 }
3992
3993 XSETINT (*x, pos);
3994 XSETINT (*y, top_range);
3995
3996 f->mouse_moved = 0;
3997 last_mouse_scroll_bar = Qnil;
3998
3999 *time = last_mouse_movement_time;
4000
4001 UNBLOCK_INPUT;
4002 }
4003
4004
4005 /* The screen has been cleared so we may have changed foreground or
4006 background colors, and the scroll bars may need to be redrawn.
4007 Clear out the scroll bars, and ask for expose events, so we can
4008 redraw them. */
4009
4010 void
4011 x_scroll_bar_clear (f)
4012 FRAME_PTR f;
4013 {
4014 Lisp_Object bar;
4015
4016 /* We can have scroll bars even if this is 0,
4017 if we just turned off scroll bar mode.
4018 But in that case we should not clear them. */
4019 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
4020 for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
4021 bar = XSCROLL_BAR (bar)->next)
4022 {
4023 HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
4024 HDC hdc = GetDC (window);
4025 RECT rect;
4026
4027 /* Hide scroll bar until ready to repaint. x_scroll_bar_move
4028 arranges to refresh the scroll bar if hidden. */
4029 my_show_window (f, window, SW_HIDE);
4030
4031 GetClientRect (window, &rect);
4032 select_palette (f, hdc);
4033 w32_clear_rect (f, hdc, &rect);
4034 deselect_palette (f, hdc);
4035
4036 ReleaseDC (window, hdc);
4037 }
4038 }
4039
4040 \f
4041 /* The main W32 event-reading loop - w32_read_socket. */
4042
4043 /* Record the last 100 characters stored
4044 to help debug the loss-of-chars-during-GC problem. */
4045
4046 static int temp_index;
4047 static short temp_buffer[100];
4048
4049
4050 /* Read events coming from the W32 shell.
4051 This routine is called by the SIGIO handler.
4052 We return as soon as there are no more events to be read.
4053
4054 Events representing keys are stored in buffer BUFP,
4055 which can hold up to NUMCHARS characters.
4056 We return the number of characters stored into the buffer,
4057 thus pretending to be `read'.
4058
4059 EXPECTED is nonzero if the caller knows input is available.
4060
4061 Some of these messages are reposted back to the message queue since the
4062 system calls the windows proc directly in a context where we cannot return
4063 the data nor can we guarantee the state we are in. So if we dispatch them
4064 we will get into an infinite loop. To prevent this from ever happening we
4065 will set a variable to indicate we are in the read_socket call and indicate
4066 which message we are processing since the windows proc gets called
4067 recursively with different messages by the system.
4068 */
4069
4070 int
4071 w32_read_socket (sd, bufp, numchars, expected)
4072 register int sd;
4073 /* register */ struct input_event *bufp;
4074 /* register */ int numchars;
4075 int expected;
4076 {
4077 int count = 0;
4078 int check_visibility = 0;
4079 W32Msg msg;
4080 struct frame *f;
4081 struct w32_display_info *dpyinfo = &one_w32_display_info;
4082
4083 if (interrupt_input_blocked)
4084 {
4085 interrupt_input_pending = 1;
4086 return -1;
4087 }
4088
4089 interrupt_input_pending = 0;
4090 BLOCK_INPUT;
4091
4092 /* So people can tell when we have read the available input. */
4093 input_signal_count++;
4094
4095 if (numchars <= 0)
4096 abort (); /* Don't think this happens. */
4097
4098 /* TODO: tool-bars, ghostscript integration, mouse
4099 cursors. */
4100 while (get_next_msg (&msg, FALSE))
4101 {
4102 switch (msg.msg.message)
4103 {
4104 case WM_PAINT:
4105 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4106
4107 if (f)
4108 {
4109 if (msg.rect.right == msg.rect.left ||
4110 msg.rect.bottom == msg.rect.top)
4111 {
4112 /* We may get paint messages even though the client
4113 area is clipped - these are not expose events. */
4114 DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
4115 SDATA (f->name)));
4116 }
4117 else if (f->async_visible != 1)
4118 {
4119 /* Definitely not obscured, so mark as visible. */
4120 f->async_visible = 1;
4121 f->async_iconified = 0;
4122 SET_FRAME_GARBAGED (f);
4123 DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
4124 SDATA (f->name)));
4125
4126 /* WM_PAINT serves as MapNotify as well, so report
4127 visibility changes properly. */
4128 if (f->iconified)
4129 {
4130 bufp->kind = DEICONIFY_EVENT;
4131 XSETFRAME (bufp->frame_or_window, f);
4132 bufp->arg = Qnil;
4133 bufp++;
4134 count++;
4135 numchars--;
4136 }
4137 else if (! NILP (Vframe_list)
4138 && ! NILP (XCDR (Vframe_list)))
4139 /* Force a redisplay sooner or later to update the
4140 frame titles in case this is the second frame. */
4141 record_asynch_buffer_change ();
4142 }
4143 else
4144 {
4145 HDC hdc = get_frame_dc (f);
4146
4147 /* Erase background again for safety. */
4148 w32_clear_rect (f, hdc, &msg.rect);
4149 release_frame_dc (f, hdc);
4150 expose_frame (f,
4151 msg.rect.left,
4152 msg.rect.top,
4153 msg.rect.right - msg.rect.left,
4154 msg.rect.bottom - msg.rect.top);
4155 }
4156 }
4157 break;
4158
4159 case WM_INPUTLANGCHANGE:
4160 /* Generate a language change event. */
4161 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4162
4163 if (f)
4164 {
4165 if (numchars == 0)
4166 abort ();
4167
4168 bufp->kind = LANGUAGE_CHANGE_EVENT;
4169 XSETFRAME (bufp->frame_or_window, f);
4170 bufp->arg = Qnil;
4171 bufp->code = msg.msg.wParam;
4172 bufp->modifiers = msg.msg.lParam & 0xffff;
4173 bufp++;
4174 count++;
4175 numchars--;
4176 }
4177 break;
4178
4179 case WM_KEYDOWN:
4180 case WM_SYSKEYDOWN:
4181 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4182
4183 if (f && !f->iconified)
4184 {
4185 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
4186 {
4187 dpyinfo->mouse_face_hidden = 1;
4188 clear_mouse_face (dpyinfo);
4189 }
4190
4191 if (temp_index == sizeof temp_buffer / sizeof (short))
4192 temp_index = 0;
4193 temp_buffer[temp_index++] = msg.msg.wParam;
4194 bufp->kind = NON_ASCII_KEYSTROKE_EVENT;
4195 bufp->code = msg.msg.wParam;
4196 bufp->modifiers = msg.dwModifiers;
4197 XSETFRAME (bufp->frame_or_window, f);
4198 bufp->arg = Qnil;
4199 bufp->timestamp = msg.msg.time;
4200 bufp++;
4201 numchars--;
4202 count++;
4203 }
4204 break;
4205
4206 case WM_SYSCHAR:
4207 case WM_CHAR:
4208 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4209
4210 if (f && !f->iconified)
4211 {
4212 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
4213 {
4214 dpyinfo->mouse_face_hidden = 1;
4215 clear_mouse_face (dpyinfo);
4216 }
4217
4218 if (temp_index == sizeof temp_buffer / sizeof (short))
4219 temp_index = 0;
4220 temp_buffer[temp_index++] = msg.msg.wParam;
4221 bufp->kind = ASCII_KEYSTROKE_EVENT;
4222 bufp->code = msg.msg.wParam;
4223 bufp->modifiers = msg.dwModifiers;
4224 XSETFRAME (bufp->frame_or_window, f);
4225 bufp->arg = Qnil;
4226 bufp->timestamp = msg.msg.time;
4227 bufp++;
4228 numchars--;
4229 count++;
4230 }
4231 break;
4232
4233 case WM_MOUSEMOVE:
4234 /* Ignore non-movement. */
4235 {
4236 int x = LOWORD (msg.msg.lParam);
4237 int y = HIWORD (msg.msg.lParam);
4238 if (x == last_mousemove_x && y == last_mousemove_y)
4239 break;
4240 last_mousemove_x = x;
4241 last_mousemove_y = y;
4242 }
4243
4244 previous_help_echo_string = help_echo_string;
4245
4246 if (dpyinfo->grabbed && last_mouse_frame
4247 && FRAME_LIVE_P (last_mouse_frame))
4248 f = last_mouse_frame;
4249 else
4250 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4251
4252 if (dpyinfo->mouse_face_hidden)
4253 {
4254 dpyinfo->mouse_face_hidden = 0;
4255 clear_mouse_face (dpyinfo);
4256 }
4257
4258 if (f)
4259 {
4260 /* Generate SELECT_WINDOW_EVENTs when needed. */
4261 if (mouse_autoselect_window)
4262 {
4263 Lisp_Object window;
4264 int x = LOWORD (msg.msg.lParam);
4265 int y = HIWORD (msg.msg.lParam);
4266
4267 window = window_from_coordinates (f, x, y, 0, 0, 0, 0);
4268
4269 /* Window will be selected only when it is not
4270 selected now and last mouse movement event was
4271 not in it. Minibuffer window will be selected
4272 iff it is active. */
4273 if (WINDOWP(window)
4274 && !EQ (window, last_window)
4275 && !EQ (window, selected_window)
4276 && numchars > 0)
4277 {
4278 bufp->kind = SELECT_WINDOW_EVENT;
4279 bufp->frame_or_window = window;
4280 bufp->arg = Qnil;
4281 ++bufp, ++count, --numchars;
4282 }
4283
4284 last_window=window;
4285 }
4286 note_mouse_movement (f, &msg.msg);
4287 }
4288 else
4289 {
4290 /* If we move outside the frame, then we're
4291 certainly no longer on any text in the frame. */
4292 clear_mouse_face (dpyinfo);
4293 }
4294
4295 /* If the contents of the global variable help_echo_string
4296 has changed, generate a HELP_EVENT. */
4297 if (help_echo_string != previous_help_echo_string ||
4298 (!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
4299 {
4300 Lisp_Object frame;
4301 int n;
4302
4303 if (help_echo_string == Qnil)
4304 {
4305 help_echo_object = help_echo_window = Qnil;
4306 help_echo_pos = -1;
4307 }
4308
4309 if (f)
4310 XSETFRAME (frame, f);
4311 else
4312 frame = Qnil;
4313
4314 any_help_event_p = 1;
4315 n = gen_help_event (bufp, numchars, help_echo_string, frame,
4316 help_echo_window, help_echo_object,
4317 help_echo_pos);
4318 bufp += n, count += n, numchars -= n;
4319 }
4320 break;
4321
4322 case WM_LBUTTONDOWN:
4323 case WM_LBUTTONUP:
4324 case WM_MBUTTONDOWN:
4325 case WM_MBUTTONUP:
4326 case WM_RBUTTONDOWN:
4327 case WM_RBUTTONUP:
4328 case WM_XBUTTONDOWN:
4329 case WM_XBUTTONUP:
4330 {
4331 /* If we decide we want to generate an event to be seen
4332 by the rest of Emacs, we put it here. */
4333 struct input_event emacs_event;
4334 int tool_bar_p = 0;
4335 int button;
4336 int up;
4337
4338 emacs_event.kind = NO_EVENT;
4339
4340 if (dpyinfo->grabbed && last_mouse_frame
4341 && FRAME_LIVE_P (last_mouse_frame))
4342 f = last_mouse_frame;
4343 else
4344 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4345
4346 if (f)
4347 {
4348 construct_mouse_click (&emacs_event, &msg, f);
4349
4350 /* Is this in the tool-bar? */
4351 if (WINDOWP (f->tool_bar_window)
4352 && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
4353 {
4354 Lisp_Object window;
4355 int x = XFASTINT (emacs_event.x);
4356 int y = XFASTINT (emacs_event.y);
4357
4358 window = window_from_coordinates (f, x, y, 0, 0, 0, 1);
4359
4360 if (EQ (window, f->tool_bar_window))
4361 {
4362 w32_handle_tool_bar_click (f, &emacs_event);
4363 tool_bar_p = 1;
4364 }
4365 }
4366
4367 if (!tool_bar_p)
4368 if (!dpyinfo->w32_focus_frame
4369 || f == dpyinfo->w32_focus_frame
4370 && (numchars >= 1))
4371 {
4372 construct_mouse_click (bufp, &msg, f);
4373 bufp++;
4374 count++;
4375 numchars--;
4376 }
4377 }
4378
4379 parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
4380 &button, &up);
4381
4382 if (up)
4383 {
4384 dpyinfo->grabbed &= ~ (1 << button);
4385 }
4386 else
4387 {
4388 dpyinfo->grabbed |= (1 << button);
4389 last_mouse_frame = f;
4390 /* Ignore any mouse motion that happened
4391 before this event; any subsequent mouse-movement
4392 Emacs events should reflect only motion after
4393 the ButtonPress. */
4394 if (f != 0)
4395 f->mouse_moved = 0;
4396
4397 if (!tool_bar_p)
4398 last_tool_bar_item = -1;
4399 }
4400 break;
4401 }
4402
4403 case WM_MOUSEWHEEL:
4404 {
4405 if (dpyinfo->grabbed && last_mouse_frame
4406 && FRAME_LIVE_P (last_mouse_frame))
4407 f = last_mouse_frame;
4408 else
4409 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4410
4411 if (f)
4412 {
4413
4414 if ((!dpyinfo->w32_focus_frame
4415 || f == dpyinfo->w32_focus_frame)
4416 && (numchars >= 1))
4417 {
4418 /* Emit an Emacs wheel-up/down event. */
4419 construct_mouse_wheel (bufp, &msg, f);
4420 bufp++;
4421 count++;
4422 numchars--;
4423 }
4424 /* Ignore any mouse motion that happened before this
4425 event; any subsequent mouse-movement Emacs events
4426 should reflect only motion after the
4427 ButtonPress. */
4428 f->mouse_moved = 0;
4429 }
4430 last_mouse_frame = f;
4431 last_tool_bar_item = -1;
4432 }
4433 break;
4434
4435 case WM_DROPFILES:
4436 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4437
4438 if (f)
4439 {
4440 construct_drag_n_drop (bufp, &msg, f);
4441 bufp++;
4442 count++;
4443 numchars--;
4444 }
4445 break;
4446
4447 case WM_VSCROLL:
4448 {
4449 struct scroll_bar *bar =
4450 x_window_to_scroll_bar ((HWND)msg.msg.lParam);
4451
4452 if (bar && numchars >= 1)
4453 {
4454 if (w32_scroll_bar_handle_click (bar, &msg, bufp))
4455 {
4456 bufp++;
4457 count++;
4458 numchars--;
4459 }
4460 }
4461 break;
4462 }
4463
4464 case WM_WINDOWPOSCHANGED:
4465 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4466 if (f)
4467 {
4468 x_check_fullscreen_move(f);
4469 if (f->want_fullscreen & FULLSCREEN_WAIT)
4470 f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH);
4471 }
4472 check_visibility = 1;
4473 break;
4474
4475 case WM_ACTIVATE:
4476 case WM_ACTIVATEAPP:
4477 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4478 if (f)
4479 x_check_fullscreen (f);
4480 check_visibility = 1;
4481 break;
4482
4483 case WM_MOVE:
4484 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4485
4486 if (f && !f->async_iconified)
4487 {
4488 int x, y;
4489
4490 x_real_positions (f, &x, &y);
4491 f->left_pos = x;
4492 f->top_pos = y;
4493 }
4494
4495 check_visibility = 1;
4496 break;
4497
4498 case WM_SHOWWINDOW:
4499 /* wParam non-zero means Window is about to be shown, 0 means
4500 about to be hidden. */
4501 /* Redo the mouse-highlight after the tooltip has gone. */
4502 if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
4503 {
4504 tip_window = NULL;
4505 redo_mouse_highlight ();
4506 }
4507
4508 /* If window has been obscured or exposed by another window
4509 being maximised or minimised/restored, then recheck
4510 visibility of all frames. Direct changes to our own
4511 windows get handled by WM_SIZE. */
4512 #if 0
4513 if (msg.msg.lParam != 0)
4514 check_visibility = 1;
4515 else
4516 {
4517 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4518 f->async_visible = msg.msg.wParam;
4519 }
4520 #endif
4521
4522 check_visibility = 1;
4523 break;
4524
4525 case WM_SIZE:
4526 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4527
4528 /* Inform lisp of whether frame has been iconified etc. */
4529 if (f)
4530 {
4531 switch (msg.msg.wParam)
4532 {
4533 case SIZE_MINIMIZED:
4534 f->async_visible = 0;
4535 f->async_iconified = 1;
4536
4537 bufp->kind = ICONIFY_EVENT;
4538 XSETFRAME (bufp->frame_or_window, f);
4539 bufp->arg = Qnil;
4540 bufp++;
4541 count++;
4542 numchars--;
4543 break;
4544
4545 case SIZE_MAXIMIZED:
4546 case SIZE_RESTORED:
4547 f->async_visible = 1;
4548 f->async_iconified = 0;
4549
4550 /* wait_reading_process_input will notice this and update
4551 the frame's display structures. */
4552 SET_FRAME_GARBAGED (f);
4553
4554 if (f->iconified)
4555 {
4556 int x, y;
4557
4558 /* Reset top and left positions of the Window
4559 here since Windows sends a WM_MOVE message
4560 BEFORE telling us the Window is minimized
4561 when the Window is iconified, with 3000,3000
4562 as the co-ords. */
4563 x_real_positions (f, &x, &y);
4564 f->left_pos = x;
4565 f->top_pos = y;
4566
4567 bufp->kind = DEICONIFY_EVENT;
4568 XSETFRAME (bufp->frame_or_window, f);
4569 bufp->arg = Qnil;
4570 bufp++;
4571 count++;
4572 numchars--;
4573 }
4574 else if (! NILP (Vframe_list)
4575 && ! NILP (XCDR (Vframe_list)))
4576 /* Force a redisplay sooner or later
4577 to update the frame titles
4578 in case this is the second frame. */
4579 record_asynch_buffer_change ();
4580 break;
4581 }
4582 }
4583
4584 if (f && !f->async_iconified && msg.msg.wParam != SIZE_MINIMIZED)
4585 {
4586 RECT rect;
4587 int rows;
4588 int columns;
4589 int width;
4590 int height;
4591
4592 GetClientRect (msg.msg.hwnd, &rect);
4593
4594 height = rect.bottom - rect.top;
4595 width = rect.right - rect.left;
4596
4597 rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
4598 columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
4599
4600 /* TODO: Clip size to the screen dimensions. */
4601
4602 /* Even if the number of character rows and columns has
4603 not changed, the font size may have changed, so we need
4604 to check the pixel dimensions as well. */
4605
4606 if (columns != FRAME_COLS (f)
4607 || rows != FRAME_LINES (f)
4608 || width != FRAME_PIXEL_WIDTH (f)
4609 || height != FRAME_PIXEL_HEIGHT (f))
4610 {
4611 change_frame_size (f, rows, columns, 0, 1, 0);
4612 SET_FRAME_GARBAGED (f);
4613 cancel_mouse_face (f);
4614 FRAME_PIXEL_WIDTH (f) = width;
4615 FRAME_PIXEL_HEIGHT (f) = height;
4616 f->win_gravity = NorthWestGravity;
4617 }
4618 }
4619
4620 check_visibility = 1;
4621 break;
4622
4623 case WM_MOUSELEAVE:
4624 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4625 if (f)
4626 {
4627 if (f == dpyinfo->mouse_face_mouse_frame)
4628 {
4629 /* If we move outside the frame, then we're
4630 certainly no longer on any text in the frame. */
4631 clear_mouse_face (dpyinfo);
4632 dpyinfo->mouse_face_mouse_frame = 0;
4633 }
4634
4635 /* Generate a nil HELP_EVENT to cancel a help-echo.
4636 Do it only if there's something to cancel.
4637 Otherwise, the startup message is cleared when
4638 the mouse leaves the frame. */
4639 if (any_help_event_p)
4640 {
4641 Lisp_Object frame;
4642 int n;
4643
4644 XSETFRAME (frame, f);
4645 help_echo_string = Qnil;
4646 n = gen_help_event (bufp, numchars,
4647 Qnil, frame, Qnil, Qnil, 0);
4648 bufp += n, count += n, numchars -= n;
4649 }
4650 }
4651 break;
4652
4653 case WM_SETFOCUS:
4654 /* TODO: Port this change:
4655 2002-06-28 Jan D. <jan.h.d@swipnet.se>
4656 * xterm.h (struct x_output): Add focus_state.
4657 * xterm.c (x_focus_changed): New function.
4658 (x_detect_focus_change): New function.
4659 (XTread_socket): Call x_detect_focus_change for FocusIn/FocusOut
4660 EnterNotify and LeaveNotify to track X focus changes.
4661 */
4662 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4663
4664 dpyinfo->w32_focus_event_frame = f;
4665
4666 if (f)
4667 x_new_focus_frame (dpyinfo, f);
4668
4669
4670 dpyinfo->grabbed = 0;
4671 check_visibility = 1;
4672 break;
4673
4674 case WM_KILLFOCUS:
4675 /* TODO: some of this belongs in MOUSE_LEAVE */
4676 f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
4677
4678 if (f)
4679 {
4680 if (f == dpyinfo->w32_focus_event_frame)
4681 dpyinfo->w32_focus_event_frame = 0;
4682
4683 if (f == dpyinfo->w32_focus_frame)
4684 x_new_focus_frame (dpyinfo, 0);
4685
4686 if (f == dpyinfo->mouse_face_mouse_frame)
4687 {
4688 /* If we move outside the frame, then we're
4689 certainly no longer on any text in the frame. */
4690 clear_mouse_face (dpyinfo);
4691 dpyinfo->mouse_face_mouse_frame = 0;
4692 }
4693
4694 /* Generate a nil HELP_EVENT to cancel a help-echo.
4695 Do it only if there's something to cancel.
4696 Otherwise, the startup message is cleared when
4697 the mouse leaves the frame. */
4698 if (any_help_event_p)
4699 {
4700 Lisp_Object frame;
4701 int n;
4702
4703 XSETFRAME (frame, f);
4704 help_echo_string = Qnil;
4705 n = gen_help_event (bufp, numchars,
4706 Qnil, frame, Qnil, Qnil, 0);
4707 bufp += n, count += n, numchars -=n;
4708 }
4709 }
4710
4711 dpyinfo->grabbed = 0;
4712 check_visibility = 1;
4713 break;
4714
4715 case WM_CLOSE:
4716 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4717
4718 if (f)
4719 {
4720 if (numchars == 0)
4721 abort ();
4722
4723 bufp->kind = DELETE_WINDOW_EVENT;
4724 XSETFRAME (bufp->frame_or_window, f);
4725 bufp->arg = Qnil;
4726 bufp++;
4727 count++;
4728 numchars--;
4729 }
4730 break;
4731
4732 case WM_INITMENU:
4733 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4734
4735 if (f)
4736 {
4737 if (numchars == 0)
4738 abort ();
4739
4740 bufp->kind = MENU_BAR_ACTIVATE_EVENT;
4741 XSETFRAME (bufp->frame_or_window, f);
4742 bufp->arg = Qnil;
4743 bufp++;
4744 count++;
4745 numchars--;
4746 }
4747 break;
4748
4749 case WM_COMMAND:
4750 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4751
4752 if (f)
4753 {
4754 extern void menubar_selection_callback
4755 (FRAME_PTR f, void * client_data);
4756 menubar_selection_callback (f, (void *)msg.msg.wParam);
4757 }
4758
4759 check_visibility = 1;
4760 break;
4761
4762 case WM_DISPLAYCHANGE:
4763 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4764
4765 if (f)
4766 {
4767 dpyinfo->width = (short) LOWORD (msg.msg.lParam);
4768 dpyinfo->height = (short) HIWORD (msg.msg.lParam);
4769 dpyinfo->n_cbits = msg.msg.wParam;
4770 DebPrint (("display change: %d %d\n", dpyinfo->width,
4771 dpyinfo->height));
4772 }
4773
4774 check_visibility = 1;
4775 break;
4776
4777 default:
4778 /* Check for messages registered at runtime. */
4779 if (msg.msg.message == msh_mousewheel)
4780 {
4781 /* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
4782 msg.msg.message = WM_MOUSEWHEEL;
4783 prepend_msg (&msg);
4784 }
4785 break;
4786 }
4787 }
4788
4789 /* If the focus was just given to an autoraising frame,
4790 raise it now. */
4791 /* ??? This ought to be able to handle more than one such frame. */
4792 if (pending_autoraise_frame)
4793 {
4794 x_raise_frame (pending_autoraise_frame);
4795 pending_autoraise_frame = 0;
4796 }
4797
4798 /* Check which frames are still visisble, if we have enqueued any user
4799 events or been notified of events that may affect visibility. We
4800 do this here because there doesn't seem to be any direct
4801 notification from Windows that the visibility of a window has
4802 changed (at least, not in all cases). */
4803 if (count > 0 || check_visibility)
4804 {
4805 Lisp_Object tail, frame;
4806
4807 FOR_EACH_FRAME (tail, frame)
4808 {
4809 FRAME_PTR f = XFRAME (frame);
4810 /* The tooltip has been drawn already. Avoid the
4811 SET_FRAME_GARBAGED below. */
4812 if (EQ (frame, tip_frame))
4813 continue;
4814
4815 /* Check "visible" frames and mark each as obscured or not.
4816 Note that async_visible is nonzero for unobscured and
4817 obscured frames, but zero for hidden and iconified frames. */
4818 if (FRAME_W32_P (f) && f->async_visible)
4819 {
4820 RECT clipbox;
4821 HDC hdc;
4822
4823 enter_crit ();
4824 /* Query clipping rectangle for the entire window area
4825 (GetWindowDC), not just the client portion (GetDC).
4826 Otherwise, the scrollbars and menubar aren't counted as
4827 part of the visible area of the frame, and we may think
4828 the frame is obscured when really a scrollbar is still
4829 visible and gets WM_PAINT messages above. */
4830 hdc = GetWindowDC (FRAME_W32_WINDOW (f));
4831 GetClipBox (hdc, &clipbox);
4832 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
4833 leave_crit ();
4834
4835 if (clipbox.right == clipbox.left
4836 || clipbox.bottom == clipbox.top)
4837 {
4838 /* Frame has become completely obscured so mark as
4839 such (we do this by setting async_visible to 2 so
4840 that FRAME_VISIBLE_P is still true, but redisplay
4841 will skip it). */
4842 f->async_visible = 2;
4843
4844 if (!FRAME_OBSCURED_P (f))
4845 {
4846 DebPrint (("frame %p (%s) obscured\n", f,
4847 SDATA (f->name)));
4848 }
4849 }
4850 else
4851 {
4852 /* Frame is not obscured, so mark it as such. */
4853 f->async_visible = 1;
4854
4855 if (FRAME_OBSCURED_P (f))
4856 {
4857 SET_FRAME_GARBAGED (f);
4858 DebPrint (("obscured frame %p (%s) found to be visible\n", f,
4859 SDATA (f->name)));
4860
4861 /* Force a redisplay sooner or later. */
4862 record_asynch_buffer_change ();
4863 }
4864 }
4865 }
4866 }
4867 }
4868
4869 UNBLOCK_INPUT;
4870 return count;
4871 }
4872
4873
4874
4875 \f
4876 /***********************************************************************
4877 Text Cursor
4878 ***********************************************************************/
4879
4880 /* Set clipping for output in glyph row ROW. W is the window in which
4881 we operate. GC is the graphics context to set clipping in.
4882
4883 ROW may be a text row or, e.g., a mode line. Text rows must be
4884 clipped to the interior of the window dedicated to text display,
4885 mode lines must be clipped to the whole window. */
4886
4887 static void
4888 w32_clip_to_row (w, row, hdc)
4889 struct window *w;
4890 struct glyph_row *row;
4891 HDC hdc;
4892 {
4893 struct frame *f = XFRAME (WINDOW_FRAME (w));
4894 RECT clip_rect;
4895 int window_y, window_width;
4896
4897 window_box (w, -1, 0, &window_y, &window_width, 0);
4898
4899 clip_rect.left = WINDOW_TO_FRAME_PIXEL_X (w, 0);
4900 clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
4901 clip_rect.top = max (clip_rect.top, window_y);
4902 clip_rect.right = clip_rect.left + window_width;
4903 clip_rect.bottom = clip_rect.top + row->visible_height;
4904
4905 w32_set_clip_rectangle (hdc, &clip_rect);
4906 }
4907
4908
4909 /* Draw a hollow box cursor on window W in glyph row ROW. */
4910
4911 static void
4912 x_draw_hollow_cursor (w, row)
4913 struct window *w;
4914 struct glyph_row *row;
4915 {
4916 struct frame *f = XFRAME (WINDOW_FRAME (w));
4917 HDC hdc;
4918 RECT rect;
4919 int wd;
4920 struct glyph *cursor_glyph;
4921 HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
4922
4923 /* Compute frame-relative coordinates from window-relative
4924 coordinates. */
4925 rect.left = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
4926 rect.top = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
4927 + row->ascent - w->phys_cursor_ascent);
4928 rect.bottom = rect.top + row->height;
4929
4930 /* Get the glyph the cursor is on. If we can't tell because
4931 the current matrix is invalid or such, give up. */
4932 cursor_glyph = get_phys_cursor_glyph (w);
4933 if (cursor_glyph == NULL)
4934 return;
4935
4936 /* Compute the width of the rectangle to draw. If on a stretch
4937 glyph, and `x-stretch-block-cursor' is nil, don't draw a
4938 rectangle as wide as the glyph, but use a canonical character
4939 width instead. */
4940 wd = cursor_glyph->pixel_width;
4941 if (cursor_glyph->type == STRETCH_GLYPH
4942 && !x_stretch_cursor_p)
4943 wd = min (FRAME_COLUMN_WIDTH (f), wd);
4944 w->phys_cursor_width = wd;
4945
4946 rect.right = rect.left + wd;
4947 hdc = get_frame_dc (f);
4948 /* Set clipping, draw the rectangle, and reset clipping again. */
4949 w32_clip_to_row (w, row, hdc);
4950 FrameRect (hdc, &rect, hb);
4951 DeleteObject (hb);
4952 w32_set_clip_rectangle (hdc, NULL);
4953 release_frame_dc (f, hdc);
4954 }
4955
4956
4957 /* Draw a bar cursor on window W in glyph row ROW.
4958
4959 Implementation note: One would like to draw a bar cursor with an
4960 angle equal to the one given by the font property XA_ITALIC_ANGLE.
4961 Unfortunately, I didn't find a font yet that has this property set.
4962 --gerd. */
4963
4964 static void
4965 x_draw_bar_cursor (w, row, width, kind)
4966 struct window *w;
4967 struct glyph_row *row;
4968 int width;
4969 enum text_cursor_kinds kind;
4970 {
4971 struct frame *f = XFRAME (w->frame);
4972 struct glyph *cursor_glyph;
4973 int x;
4974 HDC hdc;
4975
4976 /* If cursor is out of bounds, don't draw garbage. This can happen
4977 in mini-buffer windows when switching between echo area glyphs
4978 and mini-buffer. */
4979 cursor_glyph = get_phys_cursor_glyph (w);
4980 if (cursor_glyph == NULL)
4981 return;
4982
4983 /* If on an image, draw like a normal cursor. That's usually better
4984 visible than drawing a bar, esp. if the image is large so that
4985 the bar might not be in the window. */
4986 if (cursor_glyph->type == IMAGE_GLYPH)
4987 {
4988 struct glyph_row *row;
4989 row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
4990 draw_phys_cursor_glyph (w, row, DRAW_CURSOR);
4991 }
4992 else
4993 {
4994 COLORREF cursor_color = f->output_data.w32->cursor_pixel;
4995 struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
4996
4997 /* If the glyph's background equals the color we normally draw
4998 the bar cursor in, the bar cursor in its normal color is
4999 invisible. Use the glyph's foreground color instead in this
5000 case, on the assumption that the glyph's colors are chosen so
5001 that the glyph is legible. */
5002 if (face->background == cursor_color)
5003 cursor_color = face->foreground;
5004
5005 x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5006
5007 if (width < 0)
5008 width = FRAME_CURSOR_WIDTH (f);
5009 width = min (cursor_glyph->pixel_width, width);
5010
5011 w->phys_cursor_width = width;
5012
5013
5014 hdc = get_frame_dc (f);
5015 w32_clip_to_row (w, row, hdc);
5016
5017 if (kind == BAR_CURSOR)
5018 {
5019 w32_fill_area (f, hdc, cursor_color, x,
5020 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
5021 width, row->height);
5022 }
5023 else
5024 {
5025 w32_fill_area (f, hdc, cursor_color, x,
5026 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
5027 row->height - width),
5028 cursor_glyph->pixel_width, width);
5029 }
5030
5031 w32_set_clip_rectangle (hdc, NULL);
5032 release_frame_dc (f, hdc);
5033 }
5034 }
5035
5036
5037 /* RIF: Define cursor CURSOR on frame F. */
5038
5039 static void
5040 w32_define_frame_cursor (f, cursor)
5041 struct frame *f;
5042 Cursor cursor;
5043 {
5044 w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
5045 }
5046
5047
5048 /* RIF: Clear area on frame F. */
5049
5050 static void
5051 w32_clear_frame_area (f, x, y, width, height)
5052 struct frame *f;
5053 int x, y, width, height;
5054 {
5055 HDC hdc;
5056
5057 hdc = get_frame_dc (f);
5058 w32_clear_area (f, hdc, x, y, width, height);
5059 release_frame_dc (f, hdc);
5060 }
5061
5062 /* RIF: Draw or clear cursor on window W. */
5063
5064 static void
5065 w32_draw_window_cursor (w, glyph_row, x, y, cursor_type, cursor_width, on_p, active_p)
5066 struct window *w;
5067 struct glyph_row *glyph_row;
5068 int x, y;
5069 int cursor_type, cursor_width;
5070 int on_p, active_p;
5071 {
5072 if (on_p)
5073 {
5074 /* If the user wants to use the system caret, make sure our own
5075 cursor remains invisible. */
5076 if (w32_use_visible_system_caret)
5077 {
5078 if (w->phys_cursor_type != NO_CURSOR)
5079 erase_phys_cursor (w);
5080
5081 cursor_type = w->phys_cursor_type = NO_CURSOR;
5082 w->phys_cursor_width = -1;
5083 }
5084 else
5085 {
5086 w->phys_cursor_type = cursor_type;
5087 }
5088
5089 w->phys_cursor_on_p = 1;
5090
5091 /* If this is the active cursor, we need to track it with the
5092 system caret, so third party software like screen magnifiers
5093 and speech synthesizers can follow the cursor. */
5094 if (active_p)
5095 {
5096 struct frame *f = XFRAME (WINDOW_FRAME (w));
5097 HWND hwnd = FRAME_W32_WINDOW (f);
5098
5099 w32_system_caret_x
5100 = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5101 w32_system_caret_y
5102 = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
5103 + glyph_row->ascent - w->phys_cursor_ascent);
5104
5105 /* If the size of the active cursor changed, destroy the old
5106 system caret. */
5107 if (w32_system_caret_hwnd
5108 && (w32_system_caret_height != w->phys_cursor_height))
5109 PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
5110
5111 w32_system_caret_height = w->phys_cursor_height;
5112
5113 /* Move the system caret. */
5114 PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
5115 }
5116
5117 switch (cursor_type)
5118 {
5119 case HOLLOW_BOX_CURSOR:
5120 x_draw_hollow_cursor (w, glyph_row);
5121 break;
5122
5123 case FILLED_BOX_CURSOR:
5124 draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
5125 break;
5126
5127 case BAR_CURSOR:
5128 x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
5129 break;
5130
5131 case HBAR_CURSOR:
5132 x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
5133 break;
5134
5135 case NO_CURSOR:
5136 w->phys_cursor_width = 0;
5137 break;
5138
5139 default:
5140 abort ();
5141 }
5142 }
5143 }
5144
5145
5146 \f
5147 /* Icons. */
5148
5149 int
5150 x_bitmap_icon (f, icon)
5151 struct frame *f;
5152 Lisp_Object icon;
5153 {
5154 HANDLE hicon;
5155
5156 if (FRAME_W32_WINDOW (f) == 0)
5157 return 1;
5158
5159 if (NILP (icon))
5160 hicon = LoadIcon (hinst, EMACS_CLASS);
5161 else if (STRINGP (icon))
5162 hicon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
5163 LR_DEFAULTSIZE | LR_LOADFROMFILE);
5164 else if (SYMBOLP (icon))
5165 {
5166 LPCTSTR name;
5167
5168 if (EQ (icon, intern ("application")))
5169 name = (LPCTSTR) IDI_APPLICATION;
5170 else if (EQ (icon, intern ("hand")))
5171 name = (LPCTSTR) IDI_HAND;
5172 else if (EQ (icon, intern ("question")))
5173 name = (LPCTSTR) IDI_QUESTION;
5174 else if (EQ (icon, intern ("exclamation")))
5175 name = (LPCTSTR) IDI_EXCLAMATION;
5176 else if (EQ (icon, intern ("asterisk")))
5177 name = (LPCTSTR) IDI_ASTERISK;
5178 else if (EQ (icon, intern ("winlogo")))
5179 name = (LPCTSTR) IDI_WINLOGO;
5180 else
5181 return 1;
5182
5183 hicon = LoadIcon (NULL, name);
5184 }
5185 else
5186 return 1;
5187
5188 if (hicon == NULL)
5189 return 1;
5190
5191 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
5192 (LPARAM) hicon);
5193
5194 return 0;
5195 }
5196
5197 \f
5198 /************************************************************************
5199 Handling X errors
5200 ************************************************************************/
5201
5202 /* Display Error Handling functions not used on W32. Listing them here
5203 helps diff stay in step when comparing w32term.c with xterm.c.
5204
5205 x_error_catcher (display, error)
5206 x_catch_errors (dpy)
5207 x_catch_errors_unwind (old_val)
5208 x_check_errors (dpy, format)
5209 x_had_errors_p (dpy)
5210 x_clear_errors (dpy)
5211 x_uncatch_errors (dpy, count)
5212 x_trace_wire ()
5213 x_connection_signal (signalnum)
5214 x_connection_closed (dpy, error_message)
5215 x_error_quitter (display, error)
5216 x_error_handler (display, error)
5217 x_io_error_quitter (display)
5218
5219 */
5220
5221 \f
5222 /* Changing the font of the frame. */
5223
5224 /* Give frame F the font named FONTNAME as its default font, and
5225 return the full name of that font. FONTNAME may be a wildcard
5226 pattern; in that case, we choose some font that fits the pattern.
5227 The return value shows which font we chose. */
5228
5229 Lisp_Object
5230 x_new_font (f, fontname)
5231 struct frame *f;
5232 register char *fontname;
5233 {
5234 struct font_info *fontp
5235 = FS_LOAD_FONT (f, 0, fontname, -1);
5236
5237 if (!fontp)
5238 return Qnil;
5239
5240 FRAME_FONT (f) = (XFontStruct *) (fontp->font);
5241 FRAME_BASELINE_OFFSET (f) = fontp->baseline_offset;
5242 FRAME_FONTSET (f) = -1;
5243
5244 FRAME_COLUMN_WIDTH (f) = FONT_WIDTH (FRAME_FONT (f));
5245 FRAME_LINE_HEIGHT (f) = FONT_HEIGHT (FRAME_FONT (f));
5246
5247 compute_fringe_widths (f, 1);
5248
5249 /* Compute the scroll bar width in character columns. */
5250 if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
5251 {
5252 int wid = FRAME_COLUMN_WIDTH (f);
5253 FRAME_CONFIG_SCROLL_BAR_COLS (f)
5254 = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid-1) / wid;
5255 }
5256 else
5257 {
5258 int wid = FRAME_COLUMN_WIDTH (f);
5259 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
5260 }
5261
5262 /* Now make the frame display the given font. */
5263 if (FRAME_W32_WINDOW (f) != 0)
5264 {
5265 if (NILP (tip_frame) || XFRAME (tip_frame) != f)
5266 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
5267 }
5268
5269 return build_string (fontp->full_name);
5270 }
5271 \f
5272 /* Give frame F the fontset named FONTSETNAME as its default font, and
5273 return the full name of that fontset. FONTSETNAME may be a wildcard
5274 pattern; in that case, we choose some fontset that fits the pattern.
5275 The return value shows which fontset we chose. */
5276
5277 Lisp_Object
5278 x_new_fontset (f, fontsetname)
5279 struct frame *f;
5280 char *fontsetname;
5281 {
5282 int fontset = fs_query_fontset (build_string (fontsetname), 0);
5283 Lisp_Object result;
5284
5285 if (fontset < 0)
5286 return Qnil;
5287
5288 if (FRAME_FONTSET (f) == fontset)
5289 /* This fontset is already set in frame F. There's nothing more
5290 to do. */
5291 return fontset_name (fontset);
5292
5293 result = x_new_font (f, (SDATA (fontset_ascii (fontset))));
5294
5295 if (!STRINGP (result))
5296 /* Can't load ASCII font. */
5297 return Qnil;
5298
5299 /* Since x_new_font doesn't update any fontset information, do it now. */
5300 FRAME_FONTSET(f) = fontset;
5301
5302 return build_string (fontsetname);
5303 }
5304
5305 \f
5306 /***********************************************************************
5307 TODO: W32 Input Methods
5308 ***********************************************************************/
5309 /* Listing missing functions from xterm.c helps diff stay in step.
5310
5311 xim_destroy_callback (xim, client_data, call_data)
5312 xim_open_dpy (dpyinfo, resource_name)
5313 struct xim_inst_t
5314 xim_instantiate_callback (display, client_data, call_data)
5315 xim_initialize (dpyinfo, resource_name)
5316 xim_close_dpy (dpyinfo)
5317
5318 */
5319
5320 \f
5321 /* Calculate the absolute position in frame F
5322 from its current recorded position values and gravity. */
5323
5324 void
5325 x_calc_absolute_position (f)
5326 struct frame *f;
5327 {
5328 POINT pt;
5329 int flags = f->size_hint_flags;
5330
5331 pt.x = pt.y = 0;
5332
5333 /* Find the position of the outside upper-left corner of
5334 the inner window, with respect to the outer window.
5335 But do this only if we will need the results. */
5336 if (f->output_data.w32->parent_desc != FRAME_W32_DISPLAY_INFO (f)->root_window)
5337 {
5338 BLOCK_INPUT;
5339 MapWindowPoints (FRAME_W32_WINDOW (f),
5340 f->output_data.w32->parent_desc,
5341 &pt, 1);
5342 UNBLOCK_INPUT;
5343 }
5344
5345 {
5346 RECT rt;
5347 rt.left = rt.right = rt.top = rt.bottom = 0;
5348
5349 BLOCK_INPUT;
5350 AdjustWindowRect(&rt, f->output_data.w32->dwStyle,
5351 FRAME_EXTERNAL_MENU_BAR (f));
5352 UNBLOCK_INPUT;
5353
5354 pt.x += (rt.right - rt.left);
5355 pt.y += (rt.bottom - rt.top);
5356 }
5357
5358 /* Treat negative positions as relative to the leftmost bottommost
5359 position that fits on the screen. */
5360 if (flags & XNegative)
5361 f->left_pos = (FRAME_W32_DISPLAY_INFO (f)->width
5362 - 2 * f->border_width - pt.x
5363 - FRAME_PIXEL_WIDTH (f)
5364 + f->left_pos);
5365
5366 if (flags & YNegative)
5367 f->top_pos = (FRAME_W32_DISPLAY_INFO (f)->height
5368 - 2 * f->border_width - pt.y
5369 - FRAME_PIXEL_HEIGHT (f)
5370 + f->top_pos);
5371 /* The left_pos and top_pos
5372 are now relative to the top and left screen edges,
5373 so the flags should correspond. */
5374 f->size_hint_flags &= ~ (XNegative | YNegative);
5375 }
5376
5377 /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
5378 to really change the position, and 0 when calling from
5379 x_make_frame_visible (in that case, XOFF and YOFF are the current
5380 position values). It is -1 when calling from x_set_frame_parameters,
5381 which means, do adjust for borders but don't change the gravity. */
5382
5383 void
5384 x_set_offset (f, xoff, yoff, change_gravity)
5385 struct frame *f;
5386 register int xoff, yoff;
5387 int change_gravity;
5388 {
5389 int modified_top, modified_left;
5390
5391 if (change_gravity > 0)
5392 {
5393 f->top_pos = yoff;
5394 f->left_pos = xoff;
5395 f->size_hint_flags &= ~ (XNegative | YNegative);
5396 if (xoff < 0)
5397 f->size_hint_flags |= XNegative;
5398 if (yoff < 0)
5399 f->size_hint_flags |= YNegative;
5400 f->win_gravity = NorthWestGravity;
5401 }
5402 x_calc_absolute_position (f);
5403
5404 BLOCK_INPUT;
5405 x_wm_set_size_hint (f, (long) 0, 0);
5406
5407 modified_left = f->left_pos;
5408 modified_top = f->top_pos;
5409
5410 my_set_window_pos (FRAME_W32_WINDOW (f),
5411 NULL,
5412 modified_left, modified_top,
5413 0, 0,
5414 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
5415 UNBLOCK_INPUT;
5416 }
5417
5418
5419 /* Check if we need to resize the frame due to a fullscreen request.
5420 If so needed, resize the frame. */
5421 static void
5422 x_check_fullscreen (f)
5423 struct frame *f;
5424 {
5425 if (f->want_fullscreen & FULLSCREEN_BOTH)
5426 {
5427 int width, height, ign;
5428
5429 x_real_positions (f, &f->left_pos, &f->top_pos);
5430
5431 x_fullscreen_adjust (f, &width, &height, &ign, &ign);
5432
5433 /* We do not need to move the window, it shall be taken care of
5434 when setting WM manager hints.
5435 If the frame is visible already, the position is checked by
5436 x_check_fullscreen_move. */
5437 if (FRAME_COLS (f) != width || FRAME_LINES (f) != height)
5438 {
5439 change_frame_size (f, height, width, 0, 1, 0);
5440 SET_FRAME_GARBAGED (f);
5441 cancel_mouse_face (f);
5442
5443 /* Wait for the change of frame size to occur */
5444 f->want_fullscreen |= FULLSCREEN_WAIT;
5445 }
5446 }
5447 }
5448
5449 /* If frame parameters are set after the frame is mapped, we need to move
5450 the window. This is done in xfns.c.
5451 Some window managers moves the window to the right position, some
5452 moves the outer window manager window to the specified position.
5453 Here we check that we are in the right spot. If not, make a second
5454 move, assuming we are dealing with the second kind of window manager. */
5455 static void
5456 x_check_fullscreen_move (f)
5457 struct frame *f;
5458 {
5459 if (f->want_fullscreen & FULLSCREEN_MOVE_WAIT)
5460 {
5461 int expect_top = f->top_pos;
5462 int expect_left = f->left_pos;
5463
5464 if (f->want_fullscreen & FULLSCREEN_HEIGHT)
5465 expect_top = 0;
5466 if (f->want_fullscreen & FULLSCREEN_WIDTH)
5467 expect_left = 0;
5468
5469 if (expect_top != f->top_pos
5470 || expect_left != f->left_pos)
5471 x_set_offset (f, expect_left, expect_top, 1);
5472
5473 /* Just do this once */
5474 f->want_fullscreen &= ~FULLSCREEN_MOVE_WAIT;
5475 }
5476 }
5477
5478
5479 /* Call this to change the size of frame F's x-window.
5480 If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
5481 for this size change and subsequent size changes.
5482 Otherwise we leave the window gravity unchanged. */
5483
5484 void
5485 x_set_window_size (f, change_gravity, cols, rows)
5486 struct frame *f;
5487 int change_gravity;
5488 int cols, rows;
5489 {
5490 int pixelwidth, pixelheight;
5491
5492 BLOCK_INPUT;
5493
5494 check_frame_size (f, &rows, &cols);
5495 f->scroll_bar_actual_width
5496 = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f);
5497
5498 compute_fringe_widths (f, 0);
5499
5500 pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols);
5501 pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
5502
5503 f->win_gravity = NorthWestGravity;
5504 x_wm_set_size_hint (f, (long) 0, 0);
5505
5506 {
5507 RECT rect;
5508
5509 rect.left = rect.top = 0;
5510 rect.right = pixelwidth;
5511 rect.bottom = pixelheight;
5512
5513 AdjustWindowRect(&rect, f->output_data.w32->dwStyle,
5514 FRAME_EXTERNAL_MENU_BAR (f));
5515
5516 my_set_window_pos (FRAME_W32_WINDOW (f),
5517 NULL,
5518 0, 0,
5519 rect.right - rect.left,
5520 rect.bottom - rect.top,
5521 SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
5522 }
5523
5524 /* Now, strictly speaking, we can't be sure that this is accurate,
5525 but the window manager will get around to dealing with the size
5526 change request eventually, and we'll hear how it went when the
5527 ConfigureNotify event gets here.
5528
5529 We could just not bother storing any of this information here,
5530 and let the ConfigureNotify event set everything up, but that
5531 might be kind of confusing to the Lisp code, since size changes
5532 wouldn't be reported in the frame parameters until some random
5533 point in the future when the ConfigureNotify event arrives.
5534
5535 We pass 1 for DELAY since we can't run Lisp code inside of
5536 a BLOCK_INPUT. */
5537 change_frame_size (f, rows, cols, 0, 1, 0);
5538 FRAME_PIXEL_WIDTH (f) = pixelwidth;
5539 FRAME_PIXEL_HEIGHT (f) = pixelheight;
5540
5541 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
5542 receive in the ConfigureNotify event; if we get what we asked
5543 for, then the event won't cause the screen to become garbaged, so
5544 we have to make sure to do it here. */
5545 SET_FRAME_GARBAGED (f);
5546
5547 /* If cursor was outside the new size, mark it as off. */
5548 mark_window_cursors_off (XWINDOW (f->root_window));
5549
5550 /* Clear out any recollection of where the mouse highlighting was,
5551 since it might be in a place that's outside the new frame size.
5552 Actually checking whether it is outside is a pain in the neck,
5553 so don't try--just let the highlighting be done afresh with new size. */
5554 cancel_mouse_face (f);
5555
5556 UNBLOCK_INPUT;
5557 }
5558 \f
5559 /* Mouse warping. */
5560
5561 void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
5562
5563 void
5564 x_set_mouse_position (f, x, y)
5565 struct frame *f;
5566 int x, y;
5567 {
5568 int pix_x, pix_y;
5569
5570 pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
5571 pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
5572
5573 if (pix_x < 0) pix_x = 0;
5574 if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
5575
5576 if (pix_y < 0) pix_y = 0;
5577 if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
5578
5579 x_set_mouse_pixel_position (f, pix_x, pix_y);
5580 }
5581
5582 void
5583 x_set_mouse_pixel_position (f, pix_x, pix_y)
5584 struct frame *f;
5585 int pix_x, pix_y;
5586 {
5587 RECT rect;
5588 POINT pt;
5589
5590 BLOCK_INPUT;
5591
5592 GetClientRect (FRAME_W32_WINDOW (f), &rect);
5593 pt.x = rect.left + pix_x;
5594 pt.y = rect.top + pix_y;
5595 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
5596
5597 SetCursorPos (pt.x, pt.y);
5598
5599 UNBLOCK_INPUT;
5600 }
5601
5602 \f
5603 /* focus shifting, raising and lowering. */
5604
5605 void
5606 x_focus_on_frame (f)
5607 struct frame *f;
5608 {
5609 struct w32_display_info *dpyinfo = &one_w32_display_info;
5610
5611 /* Give input focus to frame. */
5612 BLOCK_INPUT;
5613 #if 0
5614 /* Try not to change its Z-order if possible. */
5615 if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
5616 my_set_focus (f, FRAME_W32_WINDOW (f));
5617 else
5618 #endif
5619 my_set_foreground_window (FRAME_W32_WINDOW (f));
5620 UNBLOCK_INPUT;
5621 }
5622
5623 void
5624 x_unfocus_frame (f)
5625 struct frame *f;
5626 {
5627 }
5628
5629 /* Raise frame F. */
5630 void
5631 x_raise_frame (f)
5632 struct frame *f;
5633 {
5634 BLOCK_INPUT;
5635
5636 /* Strictly speaking, raise-frame should only change the frame's Z
5637 order, leaving input focus unchanged. This is reasonable behaviour
5638 on X where the usual policy is point-to-focus. However, this
5639 behaviour would be very odd on Windows where the usual policy is
5640 click-to-focus.
5641
5642 On X, if the mouse happens to be over the raised frame, it gets
5643 input focus anyway (so the window with focus will never be
5644 completely obscured) - if not, then just moving the mouse over it
5645 is sufficient to give it focus. On Windows, the user must actually
5646 click on the frame (preferrably the title bar so as not to move
5647 point), which is more awkward. Also, no other Windows program
5648 raises a window to the top but leaves another window (possibly now
5649 completely obscured) with input focus.
5650
5651 Because there is a system setting on Windows that allows the user
5652 to choose the point to focus policy, we make the strict semantics
5653 optional, but by default we grab focus when raising. */
5654
5655 if (NILP (Vw32_grab_focus_on_raise))
5656 {
5657 /* The obvious call to my_set_window_pos doesn't work if Emacs is
5658 not already the foreground application: the frame is raised
5659 above all other frames belonging to us, but not above the
5660 current top window. To achieve that, we have to resort to this
5661 more cumbersome method. */
5662
5663 HDWP handle = BeginDeferWindowPos (2);
5664 if (handle)
5665 {
5666 DeferWindowPos (handle,
5667 FRAME_W32_WINDOW (f),
5668 HWND_TOP,
5669 0, 0, 0, 0,
5670 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5671
5672 DeferWindowPos (handle,
5673 GetForegroundWindow (),
5674 FRAME_W32_WINDOW (f),
5675 0, 0, 0, 0,
5676 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5677
5678 EndDeferWindowPos (handle);
5679 }
5680 }
5681 else
5682 {
5683 my_set_foreground_window (FRAME_W32_WINDOW (f));
5684 }
5685
5686 UNBLOCK_INPUT;
5687 }
5688
5689 /* Lower frame F. */
5690 void
5691 x_lower_frame (f)
5692 struct frame *f;
5693 {
5694 BLOCK_INPUT;
5695 my_set_window_pos (FRAME_W32_WINDOW (f),
5696 HWND_BOTTOM,
5697 0, 0, 0, 0,
5698 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5699 UNBLOCK_INPUT;
5700 }
5701
5702 static void
5703 w32_frame_raise_lower (f, raise_flag)
5704 FRAME_PTR f;
5705 int raise_flag;
5706 {
5707 if (! FRAME_W32_P (f))
5708 return;
5709
5710 if (raise_flag)
5711 x_raise_frame (f);
5712 else
5713 x_lower_frame (f);
5714 }
5715 \f
5716 /* Change of visibility. */
5717
5718 /* This tries to wait until the frame is really visible.
5719 However, if the window manager asks the user where to position
5720 the frame, this will return before the user finishes doing that.
5721 The frame will not actually be visible at that time,
5722 but it will become visible later when the window manager
5723 finishes with it. */
5724
5725 void
5726 x_make_frame_visible (f)
5727 struct frame *f;
5728 {
5729 Lisp_Object type;
5730
5731 BLOCK_INPUT;
5732
5733 type = x_icon_type (f);
5734 if (!NILP (type))
5735 x_bitmap_icon (f, type);
5736
5737 if (! FRAME_VISIBLE_P (f))
5738 {
5739 /* We test FRAME_GARBAGED_P here to make sure we don't
5740 call x_set_offset a second time
5741 if we get to x_make_frame_visible a second time
5742 before the window gets really visible. */
5743 if (! FRAME_ICONIFIED_P (f)
5744 && ! f->output_data.w32->asked_for_visible)
5745 x_set_offset (f, f->left_pos, f->top_pos, 0);
5746
5747 f->output_data.w32->asked_for_visible = 1;
5748
5749 /* my_show_window (f, FRAME_W32_WINDOW (f), f->async_iconified ? SW_RESTORE : SW_SHOW); */
5750 my_show_window (f, FRAME_W32_WINDOW (f), SW_SHOWNORMAL);
5751 }
5752
5753 /* Synchronize to ensure Emacs knows the frame is visible
5754 before we do anything else. We do this loop with input not blocked
5755 so that incoming events are handled. */
5756 {
5757 Lisp_Object frame;
5758 int count;
5759
5760 /* This must come after we set COUNT. */
5761 UNBLOCK_INPUT;
5762
5763 XSETFRAME (frame, f);
5764
5765 /* Wait until the frame is visible. Process X events until a
5766 MapNotify event has been seen, or until we think we won't get a
5767 MapNotify at all.. */
5768 for (count = input_signal_count + 10;
5769 input_signal_count < count && !FRAME_VISIBLE_P (f);)
5770 {
5771 /* Force processing of queued events. */
5772 /* TODO: x_sync equivalent? */
5773
5774 /* Machines that do polling rather than SIGIO have been observed
5775 to go into a busy-wait here. So we'll fake an alarm signal
5776 to let the handler know that there's something to be read.
5777 We used to raise a real alarm, but it seems that the handler
5778 isn't always enabled here. This is probably a bug. */
5779 if (input_polling_used ())
5780 {
5781 /* It could be confusing if a real alarm arrives while processing
5782 the fake one. Turn it off and let the handler reset it. */
5783 int old_poll_suppress_count = poll_suppress_count;
5784 poll_suppress_count = 1;
5785 poll_for_input_1 ();
5786 poll_suppress_count = old_poll_suppress_count;
5787 }
5788 }
5789 FRAME_SAMPLE_VISIBILITY (f);
5790 }
5791 }
5792
5793 /* Change from mapped state to withdrawn state. */
5794
5795 /* Make the frame visible (mapped and not iconified). */
5796
5797 x_make_frame_invisible (f)
5798 struct frame *f;
5799 {
5800 /* Don't keep the highlight on an invisible frame. */
5801 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5802 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5803
5804 BLOCK_INPUT;
5805
5806 my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
5807
5808 /* We can't distinguish this from iconification
5809 just by the event that we get from the server.
5810 So we can't win using the usual strategy of letting
5811 FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
5812 and synchronize with the server to make sure we agree. */
5813 f->visible = 0;
5814 FRAME_ICONIFIED_P (f) = 0;
5815 f->async_visible = 0;
5816 f->async_iconified = 0;
5817
5818 UNBLOCK_INPUT;
5819 }
5820
5821 /* Change window state from mapped to iconified. */
5822
5823 void
5824 x_iconify_frame (f)
5825 struct frame *f;
5826 {
5827 Lisp_Object type;
5828
5829 /* Don't keep the highlight on an invisible frame. */
5830 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5831 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5832
5833 if (f->async_iconified)
5834 return;
5835
5836 BLOCK_INPUT;
5837
5838 type = x_icon_type (f);
5839 if (!NILP (type))
5840 x_bitmap_icon (f, type);
5841
5842 /* Simulate the user minimizing the frame. */
5843 SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
5844
5845 UNBLOCK_INPUT;
5846 }
5847
5848 \f
5849 /* Free X resources of frame F. */
5850
5851 void
5852 x_free_frame_resources (f)
5853 struct frame *f;
5854 {
5855 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5856
5857 BLOCK_INPUT;
5858
5859 if (FRAME_W32_WINDOW (f))
5860 my_destroy_window (f, FRAME_W32_WINDOW (f));
5861
5862 free_frame_menubar (f);
5863
5864 unload_color (f, f->output_data.x->foreground_pixel);
5865 unload_color (f, f->output_data.x->background_pixel);
5866 unload_color (f, f->output_data.w32->cursor_pixel);
5867 unload_color (f, f->output_data.w32->cursor_foreground_pixel);
5868 unload_color (f, f->output_data.w32->border_pixel);
5869 unload_color (f, f->output_data.w32->mouse_pixel);
5870 if (f->output_data.w32->white_relief.allocated_p)
5871 unload_color (f, f->output_data.w32->white_relief.pixel);
5872 if (f->output_data.w32->black_relief.allocated_p)
5873 unload_color (f, f->output_data.w32->black_relief.pixel);
5874
5875 if (FRAME_FACE_CACHE (f))
5876 free_frame_faces (f);
5877
5878 xfree (f->output_data.w32);
5879 f->output_data.w32 = NULL;
5880
5881 if (f == dpyinfo->w32_focus_frame)
5882 dpyinfo->w32_focus_frame = 0;
5883 if (f == dpyinfo->w32_focus_event_frame)
5884 dpyinfo->w32_focus_event_frame = 0;
5885 if (f == dpyinfo->x_highlight_frame)
5886 dpyinfo->x_highlight_frame = 0;
5887
5888 if (f == dpyinfo->mouse_face_mouse_frame)
5889 {
5890 dpyinfo->mouse_face_beg_row
5891 = dpyinfo->mouse_face_beg_col = -1;
5892 dpyinfo->mouse_face_end_row
5893 = dpyinfo->mouse_face_end_col = -1;
5894 dpyinfo->mouse_face_window = Qnil;
5895 dpyinfo->mouse_face_deferred_gc = 0;
5896 dpyinfo->mouse_face_mouse_frame = 0;
5897 }
5898
5899 UNBLOCK_INPUT;
5900 }
5901
5902
5903 /* Destroy the window of frame F. */
5904
5905 x_destroy_window (f)
5906 struct frame *f;
5907 {
5908 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5909
5910 x_free_frame_resources (f);
5911
5912 dpyinfo->reference_count--;
5913 }
5914
5915 \f
5916 /* Setting window manager hints. */
5917
5918 /* Set the normal size hints for the window manager, for frame F.
5919 FLAGS is the flags word to use--or 0 meaning preserve the flags
5920 that the window now has.
5921 If USER_POSITION is nonzero, we set the USPosition
5922 flag (this is useful when FLAGS is 0). */
5923 void
5924 x_wm_set_size_hint (f, flags, user_position)
5925 struct frame *f;
5926 long flags;
5927 int user_position;
5928 {
5929 Window window = FRAME_W32_WINDOW (f);
5930
5931 enter_crit ();
5932
5933 SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
5934 SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
5935 SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
5936 SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
5937
5938 leave_crit ();
5939 }
5940
5941 /* Window manager things */
5942 void
5943 x_wm_set_icon_position (f, icon_x, icon_y)
5944 struct frame *f;
5945 int icon_x, icon_y;
5946 {
5947 #if 0
5948 Window window = FRAME_W32_WINDOW (f);
5949
5950 f->display.x->wm_hints.flags |= IconPositionHint;
5951 f->display.x->wm_hints.icon_x = icon_x;
5952 f->display.x->wm_hints.icon_y = icon_y;
5953
5954 XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
5955 #endif
5956 }
5957
5958 \f
5959 /***********************************************************************
5960 Fonts
5961 ***********************************************************************/
5962
5963 /* The following functions are listed here to help diff stay in step
5964 with xterm.c. See w32fns.c for definitions.
5965
5966 x_get_font_info (f, font_idx)
5967 x_list_fonts (f, pattern, size, maxnames)
5968
5969 */
5970
5971 #if GLYPH_DEBUG
5972
5973 /* Check that FONT is valid on frame F. It is if it can be found in F's
5974 font table. */
5975
5976 static void
5977 x_check_font (f, font)
5978 struct frame *f;
5979 XFontStruct *font;
5980 {
5981 int i;
5982 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5983
5984 xassert (font != NULL);
5985
5986 for (i = 0; i < dpyinfo->n_fonts; i++)
5987 if (dpyinfo->font_table[i].name
5988 && font == dpyinfo->font_table[i].font)
5989 break;
5990
5991 xassert (i < dpyinfo->n_fonts);
5992 }
5993
5994 #endif /* GLYPH_DEBUG != 0 */
5995
5996 /* Set *W to the minimum width, *H to the minimum font height of FONT.
5997 Note: There are (broken) X fonts out there with invalid XFontStruct
5998 min_bounds contents. For example, handa@etl.go.jp reports that
5999 "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1" fonts
6000 have font->min_bounds.width == 0. */
6001
6002 static INLINE void
6003 x_font_min_bounds (font, w, h)
6004 XFontStruct *font;
6005 int *w, *h;
6006 {
6007 /*
6008 * TODO: Windows does not appear to offer min bound, only
6009 * average and maximum width, and maximum height.
6010 */
6011 *h = FONT_HEIGHT (font);
6012 *w = FONT_WIDTH (font);
6013 }
6014
6015
6016 /* Compute the smallest character width and smallest font height over
6017 all fonts available on frame F. Set the members smallest_char_width
6018 and smallest_font_height in F's x_display_info structure to
6019 the values computed. Value is non-zero if smallest_font_height or
6020 smallest_char_width become smaller than they were before. */
6021
6022 int
6023 x_compute_min_glyph_bounds (f)
6024 struct frame *f;
6025 {
6026 int i;
6027 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
6028 XFontStruct *font;
6029 int old_width = dpyinfo->smallest_char_width;
6030 int old_height = dpyinfo->smallest_font_height;
6031
6032 dpyinfo->smallest_font_height = 100000;
6033 dpyinfo->smallest_char_width = 100000;
6034
6035 for (i = 0; i < dpyinfo->n_fonts; ++i)
6036 if (dpyinfo->font_table[i].name)
6037 {
6038 struct font_info *fontp = dpyinfo->font_table + i;
6039 int w, h;
6040
6041 font = (XFontStruct *) fontp->font;
6042 xassert (font != (XFontStruct *) ~0);
6043 x_font_min_bounds (font, &w, &h);
6044
6045 dpyinfo->smallest_font_height = min (dpyinfo->smallest_font_height, h);
6046 dpyinfo->smallest_char_width = min (dpyinfo->smallest_char_width, w);
6047 }
6048
6049 xassert (dpyinfo->smallest_char_width > 0
6050 && dpyinfo->smallest_font_height > 0);
6051
6052 return (dpyinfo->n_fonts == 1
6053 || dpyinfo->smallest_char_width < old_width
6054 || dpyinfo->smallest_font_height < old_height);
6055 }
6056
6057 /* The following functions are listed here to help diff stay in step
6058 with xterm.c. See w32fns.c for definitions.
6059
6060 x_load_font (f, fontname, size)
6061 x_query_font (f, fontname)
6062 x_find_ccl_program (fontp)
6063
6064 */
6065 \f
6066 /***********************************************************************
6067 Initialization
6068 ***********************************************************************/
6069
6070 static int w32_initialized = 0;
6071
6072 void
6073 w32_initialize_display_info (display_name)
6074 Lisp_Object display_name;
6075 {
6076 struct w32_display_info *dpyinfo = &one_w32_display_info;
6077
6078 bzero (dpyinfo, sizeof (*dpyinfo));
6079
6080 /* Put it on w32_display_name_list. */
6081 w32_display_name_list = Fcons (Fcons (display_name, Qnil),
6082 w32_display_name_list);
6083 dpyinfo->name_list_element = XCAR (w32_display_name_list);
6084
6085 dpyinfo->w32_id_name
6086 = (char *) xmalloc (SCHARS (Vinvocation_name)
6087 + SCHARS (Vsystem_name)
6088 + 2);
6089 sprintf (dpyinfo->w32_id_name, "%s@%s",
6090 SDATA (Vinvocation_name), SDATA (Vsystem_name));
6091
6092 /* Default Console mode values - overridden when running in GUI mode
6093 with values obtained from system metrics. */
6094 dpyinfo->resx = 1;
6095 dpyinfo->resy = 1;
6096 dpyinfo->height_in = 1;
6097 dpyinfo->width_in = 1;
6098 dpyinfo->n_planes = 1;
6099 dpyinfo->n_cbits = 4;
6100 dpyinfo->n_fonts = 0;
6101 dpyinfo->smallest_font_height = 1;
6102 dpyinfo->smallest_char_width = 1;
6103
6104 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
6105 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
6106 dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID;
6107 dpyinfo->mouse_face_window = Qnil;
6108 dpyinfo->mouse_face_overlay = Qnil;
6109 dpyinfo->mouse_face_hidden = 0;
6110
6111 dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
6112 /* TODO: dpyinfo->gray */
6113
6114 }
6115
6116 /* Create an xrdb-style database of resources to supercede registry settings.
6117 The database is just a concatenation of C strings, finished by an additional
6118 \0. The string are submitted to some basic normalization, so
6119
6120 [ *]option[ *]:[ *]value...
6121
6122 becomes
6123
6124 option:value...
6125
6126 but any whitespace following value is not removed. */
6127
6128 static char *
6129 w32_make_rdb (xrm_option)
6130 char *xrm_option;
6131 {
6132 char *buffer = xmalloc (strlen (xrm_option) + 2);
6133 char *current = buffer;
6134 char ch;
6135 int in_option = 1;
6136 int before_value = 0;
6137
6138 do {
6139 ch = *xrm_option++;
6140
6141 if (ch == '\n')
6142 {
6143 *current++ = '\0';
6144 in_option = 1;
6145 before_value = 0;
6146 }
6147 else if (ch != ' ')
6148 {
6149 *current++ = ch;
6150 if (in_option && (ch == ':'))
6151 {
6152 in_option = 0;
6153 before_value = 1;
6154 }
6155 else if (before_value)
6156 {
6157 before_value = 0;
6158 }
6159 }
6160 else if (!(in_option || before_value))
6161 {
6162 *current++ = ch;
6163 }
6164 } while (ch);
6165
6166 *current = '\0';
6167
6168 return buffer;
6169 }
6170
6171 struct w32_display_info *
6172 w32_term_init (display_name, xrm_option, resource_name)
6173 Lisp_Object display_name;
6174 char *xrm_option;
6175 char *resource_name;
6176 {
6177 struct w32_display_info *dpyinfo;
6178 HDC hdc;
6179
6180 BLOCK_INPUT;
6181
6182 if (!w32_initialized)
6183 {
6184 w32_initialize ();
6185 w32_initialized = 1;
6186 }
6187
6188 w32_initialize_display_info (display_name);
6189
6190 dpyinfo = &one_w32_display_info;
6191
6192 dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
6193
6194 /* Put this display on the chain. */
6195 dpyinfo->next = x_display_list;
6196 x_display_list = dpyinfo;
6197
6198 hdc = GetDC (GetDesktopWindow ());
6199
6200 dpyinfo->height = GetDeviceCaps (hdc, VERTRES);
6201 dpyinfo->width = GetDeviceCaps (hdc, HORZRES);
6202 dpyinfo->root_window = GetDesktopWindow ();
6203 dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
6204 dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
6205 dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
6206 dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
6207 dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
6208 dpyinfo->image_cache = make_image_cache ();
6209 dpyinfo->height_in = dpyinfo->height / dpyinfo->resx;
6210 dpyinfo->width_in = dpyinfo->width / dpyinfo->resy;
6211 ReleaseDC (GetDesktopWindow (), hdc);
6212
6213 /* initialise palette with white and black */
6214 {
6215 XColor color;
6216 w32_defined_color (0, "white", &color, 1);
6217 w32_defined_color (0, "black", &color, 1);
6218 }
6219
6220 /* Create Fringe Bitmaps and store them for later use.
6221
6222 On W32, bitmaps are all unsigned short, as Windows requires
6223 bitmap data to be Word aligned. For some reason they are
6224 horizontally reflected compared to how they appear on X, so we
6225 need to bitswap and convert to unsigned shorts before creating
6226 the bitmaps. */
6227 {
6228 int i, j;
6229
6230 for (i = NO_FRINGE_BITMAP + 1; i < MAX_FRINGE_BITMAPS; i++)
6231 {
6232 int h = fringe_bitmaps[i].height;
6233 int wd = fringe_bitmaps[i].width;
6234 unsigned short *w32bits
6235 = (unsigned short *)alloca (h * sizeof (unsigned short));
6236 unsigned short *wb = w32bits;
6237 unsigned char *bits = fringe_bitmaps[i].bits;
6238 for (j = 0; j < h; j++)
6239 {
6240 static unsigned char swap_nibble[16]
6241 = { 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */
6242 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */
6243 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */
6244 0x3, 0xb, 0x7, 0xf }; /* 0011 1011 0111 1111 */
6245
6246 unsigned char b = *bits++;
6247 *wb++ = (unsigned short)((swap_nibble[b & 0xf]<<4)
6248 | (swap_nibble[(b>>4) & 0xf]));
6249 }
6250 fringe_bmp[i] = CreateBitmap (wd, h, 1, 1, w32bits);
6251 }
6252 }
6253
6254 #ifndef F_SETOWN_BUG
6255 #ifdef F_SETOWN
6256 #ifdef F_SETOWN_SOCK_NEG
6257 /* stdin is a socket here */
6258 fcntl (connection, F_SETOWN, -getpid ());
6259 #else /* ! defined (F_SETOWN_SOCK_NEG) */
6260 fcntl (connection, F_SETOWN, getpid ());
6261 #endif /* ! defined (F_SETOWN_SOCK_NEG) */
6262 #endif /* ! defined (F_SETOWN) */
6263 #endif /* F_SETOWN_BUG */
6264
6265 #ifdef SIGIO
6266 if (interrupt_input)
6267 init_sigio (connection);
6268 #endif /* ! defined (SIGIO) */
6269
6270 UNBLOCK_INPUT;
6271
6272 return dpyinfo;
6273 }
6274 \f
6275 /* Get rid of display DPYINFO, assuming all frames are already gone. */
6276
6277 void
6278 x_delete_display (dpyinfo)
6279 struct w32_display_info *dpyinfo;
6280 {
6281 /* Discard this display from w32_display_name_list and w32_display_list.
6282 We can't use Fdelq because that can quit. */
6283 if (! NILP (w32_display_name_list)
6284 && EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
6285 w32_display_name_list = XCDR (w32_display_name_list);
6286 else
6287 {
6288 Lisp_Object tail;
6289
6290 tail = w32_display_name_list;
6291 while (CONSP (tail) && CONSP (XCDR (tail)))
6292 {
6293 if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element))
6294 {
6295 XSETCDR (tail, XCDR (XCDR (tail)));
6296 break;
6297 }
6298 tail = XCDR (tail);
6299 }
6300 }
6301
6302 /* free palette table */
6303 {
6304 struct w32_palette_entry * plist;
6305
6306 plist = dpyinfo->color_list;
6307 while (plist)
6308 {
6309 struct w32_palette_entry * pentry = plist;
6310 plist = plist->next;
6311 xfree (pentry);
6312 }
6313 dpyinfo->color_list = NULL;
6314 if (dpyinfo->palette)
6315 DeleteObject(dpyinfo->palette);
6316 }
6317 xfree (dpyinfo->font_table);
6318 xfree (dpyinfo->w32_id_name);
6319
6320 /* Destroy row bitmaps. */
6321 {
6322 int i;
6323
6324 for (i = NO_FRINGE_BITMAP + 1; i < MAX_FRINGE_BITMAPS; i++)
6325 DeleteObject (fringe_bmp[i]);
6326 }
6327 }
6328 \f
6329 /* Set up use of W32. */
6330
6331 DWORD w32_msg_worker ();
6332
6333 void
6334 x_flush (struct frame * f)
6335 { /* Nothing to do */ }
6336
6337 extern frame_parm_handler w32_frame_parm_handlers[];
6338
6339 static struct redisplay_interface w32_redisplay_interface =
6340 {
6341 w32_frame_parm_handlers,
6342 x_produce_glyphs,
6343 x_write_glyphs,
6344 x_insert_glyphs,
6345 x_clear_end_of_line,
6346 x_scroll_run,
6347 x_after_update_window_line,
6348 x_update_window_begin,
6349 x_update_window_end,
6350 x_cursor_to,
6351 x_flush,
6352 0, /* flush_display_optional */
6353 x_clear_window_mouse_face,
6354 w32_get_glyph_overhangs,
6355 x_fix_overlapping_area,
6356 w32_draw_fringe_bitmap,
6357 w32_per_char_metric,
6358 w32_encode_char,
6359 NULL, /* w32_compute_glyph_string_overhangs */
6360 x_draw_glyph_string,
6361 w32_define_frame_cursor,
6362 w32_clear_frame_area,
6363 w32_draw_window_cursor,
6364 w32_draw_vertical_window_border,
6365 w32_shift_glyphs_for_insert
6366 };
6367
6368 void
6369 w32_initialize ()
6370 {
6371 rif = &w32_redisplay_interface;
6372
6373 /* MSVC does not type K&R functions with no arguments correctly, and
6374 so we must explicitly cast them. */
6375 clear_frame_hook = (void (*)(void)) x_clear_frame;
6376 ring_bell_hook = (void (*)(void)) w32_ring_bell;
6377 update_begin_hook = x_update_begin;
6378 update_end_hook = x_update_end;
6379
6380 read_socket_hook = w32_read_socket;
6381
6382 frame_up_to_date_hook = w32_frame_up_to_date;
6383
6384 mouse_position_hook = w32_mouse_position;
6385 frame_rehighlight_hook = w32_frame_rehighlight;
6386 frame_raise_lower_hook = w32_frame_raise_lower;
6387 set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
6388 condemn_scroll_bars_hook = w32_condemn_scroll_bars;
6389 redeem_scroll_bar_hook = w32_redeem_scroll_bar;
6390 judge_scroll_bars_hook = w32_judge_scroll_bars;
6391
6392 scroll_region_ok = 1; /* we'll scroll partial frames */
6393 char_ins_del_ok = 1;
6394 line_ins_del_ok = 1; /* we'll just blt 'em */
6395 fast_clear_end_of_line = 1; /* X does this well */
6396 memory_below_frame = 0; /* we don't remember what scrolls
6397 off the bottom */
6398 baud_rate = 19200;
6399
6400 w32_system_caret_hwnd = NULL;
6401 w32_system_caret_height = 0;
6402 w32_system_caret_x = 0;
6403 w32_system_caret_y = 0;
6404
6405 last_tool_bar_item = -1;
6406 any_help_event_p = 0;
6407
6408 /* Initialize input mode: interrupt_input off, no flow control, allow
6409 8 bit character input, standard quit char. */
6410 Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
6411
6412 /* Create the window thread - it will terminate itself or when the app terminates */
6413
6414 init_crit ();
6415
6416 dwMainThreadId = GetCurrentThreadId ();
6417 DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
6418 GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
6419
6420 /* Wait for thread to start */
6421
6422 {
6423 MSG msg;
6424
6425 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
6426
6427 hWindowsThread = CreateThread (NULL, 0,
6428 (LPTHREAD_START_ROUTINE) w32_msg_worker,
6429 0, 0, &dwWindowsThreadId);
6430
6431 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6432 }
6433
6434 /* It is desirable that mainThread should have the same notion of
6435 focus window and active window as windowsThread. Unfortunately, the
6436 following call to AttachThreadInput, which should do precisely what
6437 we need, causes major problems when Emacs is linked as a console
6438 program. Unfortunately, we have good reasons for doing that, so
6439 instead we need to send messages to windowsThread to make some API
6440 calls for us (ones that affect, or depend on, the active/focus
6441 window state. */
6442 #ifdef ATTACH_THREADS
6443 AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
6444 #endif
6445
6446 /* Dynamically link to optional system components. */
6447 {
6448 HANDLE user_lib = LoadLibrary ("user32.dll");
6449
6450 #define LOAD_PROC(fn) pfn##fn = (void *) GetProcAddress (user_lib, #fn)
6451
6452 /* New proportional scroll bar functions. */
6453 LOAD_PROC (SetScrollInfo);
6454 LOAD_PROC (GetScrollInfo);
6455
6456 #undef LOAD_PROC
6457
6458 FreeLibrary (user_lib);
6459
6460 /* If using proportional scroll bars, ensure handle is at least 5 pixels;
6461 otherwise use the fixed height. */
6462 vertical_scroll_bar_min_handle = (pfnSetScrollInfo != NULL) ? 5 :
6463 GetSystemMetrics (SM_CYVTHUMB);
6464
6465 /* For either kind of scroll bar, take account of the arrows; these
6466 effectively form the border of the main scroll bar range. */
6467 vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
6468 = GetSystemMetrics (SM_CYVSCROLL);
6469 }
6470 }
6471
6472 void
6473 syms_of_w32term ()
6474 {
6475 staticpro (&w32_display_name_list);
6476 w32_display_name_list = Qnil;
6477
6478 staticpro (&last_mouse_scroll_bar);
6479 last_mouse_scroll_bar = Qnil;
6480
6481 staticpro (&Qvendor_specific_keysyms);
6482 Qvendor_specific_keysyms = intern ("vendor-specific-keysyms");
6483
6484 DEFVAR_INT ("w32-num-mouse-buttons",
6485 &Vw32_num_mouse_buttons,
6486 doc: /* Number of physical mouse buttons. */);
6487 Vw32_num_mouse_buttons = Qnil;
6488
6489 DEFVAR_LISP ("w32-swap-mouse-buttons",
6490 &Vw32_swap_mouse_buttons,
6491 doc: /* Swap the mapping of middle and right mouse buttons.
6492 When nil, middle button is mouse-2 and right button is mouse-3. */);
6493 Vw32_swap_mouse_buttons = Qnil;
6494
6495 DEFVAR_LISP ("w32-grab-focus-on-raise",
6496 &Vw32_grab_focus_on_raise,
6497 doc: /* Raised frame grabs input focus.
6498 When t, `raise-frame' grabs input focus as well. This fits well
6499 with the normal Windows click-to-focus policy, but might not be
6500 desirable when using a point-to-focus policy. */);
6501 Vw32_grab_focus_on_raise = Qt;
6502
6503 DEFVAR_LISP ("w32-capslock-is-shiftlock",
6504 &Vw32_capslock_is_shiftlock,
6505 doc: /* Apply CapsLock state to non character input keys.
6506 When nil, CapsLock only affects normal character input keys. */);
6507 Vw32_capslock_is_shiftlock = Qnil;
6508
6509 DEFVAR_LISP ("w32-recognize-altgr",
6510 &Vw32_recognize_altgr,
6511 doc: /* Recognize right-alt and left-ctrl as AltGr.
6512 When nil, the right-alt and left-ctrl key combination is
6513 interpreted normally. */);
6514 Vw32_recognize_altgr = Qt;
6515
6516 DEFVAR_BOOL ("w32-enable-unicode-output",
6517 &w32_enable_unicode_output,
6518 doc: /* Enable the use of Unicode for text output if non-nil.
6519 Unicode output may prevent some third party applications for displaying
6520 Far-East Languages on Windows 95/98 from working properly.
6521 NT uses Unicode internally anyway, so this flag will probably have no
6522 affect on NT machines. */);
6523 w32_enable_unicode_output = 1;
6524
6525 DEFVAR_BOOL ("w32-use-visible-system-caret",
6526 &w32_use_visible_system_caret,
6527 doc: /* Flag to make the system caret visible.
6528 When this is non-nil, Emacs will indicate the position of point by
6529 using the system caret instead of drawing its own cursor. Some screen
6530 reader software does not track the system cursor properly when it is
6531 invisible, and gets confused by Emacs drawing its own cursor, so this
6532 variable is initialized to t when Emacs detects that screen reader
6533 software is running as it starts up.
6534
6535 When this variable is set, other variables affecting the appearance of
6536 the cursor have no effect. */);
6537
6538 /* Initialize w32_use_visible_system_caret based on whether a screen
6539 reader is in use. */
6540 if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
6541 &w32_use_visible_system_caret, 0))
6542 w32_use_visible_system_caret = 0;
6543
6544 DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
6545 doc: /* If not nil, Emacs uses toolkit scroll bars. */);
6546 Vx_toolkit_scroll_bars = Qt;
6547
6548 staticpro (&last_mouse_motion_frame);
6549 last_mouse_motion_frame = Qnil;
6550 }