Adjust ChangeLog as per Stefan's suggestions.
[emacs.git] / src / w32term.c
blobb7c0d61b6334185627e08e098e43459f68640ff9
1 /* Implementation of GUI terminal on the Microsoft W32 API.
3 Copyright (C) 1989, 1993-2011 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 #include <config.h>
21 #include <signal.h>
22 #include <stdio.h>
23 #include <setjmp.h>
24 #include "lisp.h"
25 #include "blockinput.h"
26 #include "w32term.h"
28 #include "systty.h"
29 #include "systime.h"
31 #include <ctype.h>
32 #include <errno.h>
33 #include <sys/stat.h>
34 #include <imm.h>
36 #include "charset.h"
37 #include "character.h"
38 #include "coding.h"
39 #include "ccl.h"
40 #include "frame.h"
41 #include "dispextern.h"
42 #include "fontset.h"
43 #include "termhooks.h"
44 #include "termopts.h"
45 #include "termchar.h"
46 #include "disptab.h"
47 #include "buffer.h"
48 #include "window.h"
49 #include "keyboard.h"
50 #include "intervals.h"
51 #include "process.h"
52 #include "atimer.h"
53 #include "keymap.h"
55 #include "w32heap.h"
56 #include <shellapi.h>
58 #include "font.h"
59 #include "w32font.h"
61 /* Fringe bitmaps. */
63 static int max_fringe_bmp = 0;
64 static HBITMAP *fringe_bmp = 0;
66 /* Temporary variables for w32_read_socket. */
68 static int last_mousemove_x = 0;
69 static int last_mousemove_y = 0;
71 /* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
72 #ifndef GET_WHEEL_DELTA_WPARAM
73 #define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
74 #endif
76 /* Non-zero means that a HELP_EVENT has been generated since Emacs
77 start. */
79 static int any_help_event_p;
81 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
82 static Lisp_Object last_window;
84 extern unsigned int msh_mousewheel;
86 extern void free_frame_menubar (struct frame *);
88 extern int w32_codepage_for_font (char *fontname);
89 extern Cursor w32_load_cursor (LPCTSTR name);
91 #define x_any_window_to_frame x_window_to_frame
92 #define x_top_window_to_frame x_window_to_frame
95 /* This is display since w32 does not support multiple ones. */
96 struct w32_display_info one_w32_display_info;
97 struct w32_display_info *x_display_list;
99 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
100 one for each element of w32_display_list and in the same order.
101 NAME is the name of the frame.
102 FONT-LIST-CACHE records previous values returned by x-list-fonts. */
103 Lisp_Object w32_display_name_list;
106 #ifndef GLYPHSET
107 /* Pre Windows 2000, this was not available, but define it here so
108 that Emacs compiled on such a platform will run on newer versions. */
110 typedef struct tagWCRANGE
112 WCHAR wcLow;
113 USHORT cGlyphs;
114 } WCRANGE;
116 typedef struct tagGLYPHSET
118 DWORD cbThis;
119 DWORD flAccel;
120 DWORD cGlyphsSupported;
121 DWORD cRanges;
122 WCRANGE ranges[1];
123 } GLYPHSET;
125 #endif
127 /* Dynamic linking to SetLayeredWindowAttribute (only since 2000). */
128 BOOL (WINAPI *pfnSetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
130 #ifndef LWA_ALPHA
131 #define LWA_ALPHA 0x02
132 #endif
133 /* WS_EX_LAYERED is defined unconditionally by MingW, but only for W2K and
134 later targets by MSVC headers. */
135 #ifndef WS_EX_LAYERED
136 #define WS_EX_LAYERED 0x80000
137 #endif
139 /* This is a frame waiting to be autoraised, within w32_read_socket. */
140 struct frame *pending_autoraise_frame;
142 /* The handle of the frame that currently owns the system caret. */
143 HWND w32_system_caret_hwnd;
144 int w32_system_caret_height;
145 int w32_system_caret_x;
146 int w32_system_caret_y;
147 DWORD dwWindowsThreadId = 0;
148 HANDLE hWindowsThread = NULL;
149 DWORD dwMainThreadId = 0;
150 HANDLE hMainThread = NULL;
152 int vertical_scroll_bar_min_handle;
153 int vertical_scroll_bar_top_border;
154 int vertical_scroll_bar_bottom_border;
156 int last_scroll_bar_drag_pos;
158 /* Mouse movement. */
160 /* Where the mouse was last time we reported a mouse event. */
161 static RECT last_mouse_glyph;
162 static FRAME_PTR last_mouse_glyph_frame;
164 /* The scroll bar in which the last motion event occurred.
166 If the last motion event occurred in a scroll bar, we set this
167 so w32_mouse_position can know whether to report a scroll bar motion or
168 an ordinary motion.
170 If the last motion event didn't occur in a scroll bar, we set this
171 to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
172 static Lisp_Object last_mouse_scroll_bar;
173 static int last_mouse_scroll_bar_pos;
175 /* This is a hack. We would really prefer that w32_mouse_position would
176 return the time associated with the position it returns, but there
177 doesn't seem to be any way to wrest the time-stamp from the server
178 along with the position query. So, we just keep track of the time
179 of the last movement we received, and return that in hopes that
180 it's somewhat accurate. */
181 static Time last_mouse_movement_time;
183 /* Incremented by w32_read_socket whenever it really tries to read
184 events. */
185 #ifdef __STDC__
186 static int volatile input_signal_count;
187 #else
188 static int input_signal_count;
189 #endif
191 /* Keyboard code page - may be changed by language-change events. */
192 static int keyboard_codepage;
194 static void x_update_window_end (struct window *, int, int);
195 static void w32_handle_tool_bar_click (struct frame *,
196 struct input_event *);
197 static void w32_define_cursor (Window, Cursor);
199 void x_lower_frame (struct frame *);
200 void x_scroll_bar_clear (struct frame *);
201 void x_wm_set_size_hint (struct frame *, long, int);
202 void x_raise_frame (struct frame *);
203 void x_set_window_size (struct frame *, int, int, int);
204 void x_wm_set_window_state (struct frame *, int);
205 void x_wm_set_icon_pixmap (struct frame *, int);
206 static void w32_initialize (void);
207 static void x_update_end (struct frame *);
208 static void w32_frame_up_to_date (struct frame *);
209 static void w32_set_terminal_modes (struct terminal *);
210 static void w32_reset_terminal_modes (struct terminal *);
211 static void x_clear_frame (struct frame *);
212 static void frame_highlight (struct frame *);
213 static void frame_unhighlight (struct frame *);
214 static void x_new_focus_frame (struct w32_display_info *,
215 struct frame *);
216 static void x_focus_changed (int, int, struct w32_display_info *,
217 struct frame *, struct input_event *);
218 static void w32_detect_focus_change (struct w32_display_info *,
219 W32Msg *, struct input_event *);
220 static void w32_frame_rehighlight (struct frame *);
221 static void x_frame_rehighlight (struct w32_display_info *);
222 static void x_draw_hollow_cursor (struct window *, struct glyph_row *);
223 static void x_draw_bar_cursor (struct window *, struct glyph_row *, int,
224 enum text_cursor_kinds);
225 static void w32_clip_to_row (struct window *, struct glyph_row *, int, HDC);
226 static BOOL my_show_window (struct frame *, HWND, int);
227 static void my_set_window_pos (HWND, HWND, int, int, int, int, UINT);
228 #if 0
229 static void my_set_focus (struct frame *, HWND);
230 #endif
231 static void my_set_foreground_window (HWND);
232 static void my_destroy_window (struct frame *, HWND);
234 static Lisp_Object Qvendor_specific_keysyms;
237 /***********************************************************************
238 Debugging
239 ***********************************************************************/
241 #if 0
243 /* This is a function useful for recording debugging information about
244 the sequence of occurrences in this file. */
246 struct record
248 char *locus;
249 int type;
252 struct record event_record[100];
254 int event_record_index;
256 record_event (char *locus, int type)
258 if (event_record_index == sizeof (event_record) / sizeof (struct record))
259 event_record_index = 0;
261 event_record[event_record_index].locus = locus;
262 event_record[event_record_index].type = type;
263 event_record_index++;
266 #endif /* 0 */
269 void
270 XChangeGC (void *ignore, XGCValues *gc, unsigned long mask,
271 XGCValues *xgcv)
273 if (mask & GCForeground)
274 gc->foreground = xgcv->foreground;
275 if (mask & GCBackground)
276 gc->background = xgcv->background;
277 if (mask & GCFont)
278 gc->font = xgcv->font;
281 XGCValues *
282 XCreateGC (void *ignore, Window window, unsigned long mask, XGCValues *xgcv)
284 XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
285 memset (gc, 0, sizeof (XGCValues));
287 XChangeGC (ignore, gc, mask, xgcv);
289 return gc;
292 void
293 XGetGCValues (void *ignore, XGCValues *gc,
294 unsigned long mask, XGCValues *xgcv)
296 XChangeGC (ignore, xgcv, mask, gc);
299 static void
300 w32_set_clip_rectangle (HDC hdc, RECT *rect)
302 if (rect)
304 HRGN clip_region = CreateRectRgnIndirect (rect);
305 SelectClipRgn (hdc, clip_region);
306 DeleteObject (clip_region);
308 else
309 SelectClipRgn (hdc, NULL);
313 /* Draw a hollow rectangle at the specified position. */
314 void
315 w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
316 int width, int height)
318 HBRUSH hb, oldhb;
319 HPEN hp, oldhp;
321 hb = CreateSolidBrush (gc->background);
322 hp = CreatePen (PS_SOLID, 0, gc->foreground);
323 oldhb = SelectObject (hdc, hb);
324 oldhp = SelectObject (hdc, hp);
326 Rectangle (hdc, x, y, x + width, y + height);
328 SelectObject (hdc, oldhb);
329 SelectObject (hdc, oldhp);
330 DeleteObject (hb);
331 DeleteObject (hp);
334 /* Draw a filled rectangle at the specified position. */
335 void
336 w32_fill_rect (FRAME_PTR f, HDC hdc, COLORREF pix, RECT *lprect)
338 HBRUSH hb;
340 hb = CreateSolidBrush (pix);
341 FillRect (hdc, lprect, hb);
342 DeleteObject (hb);
345 void
346 w32_clear_window (FRAME_PTR f)
348 RECT rect;
349 HDC hdc = get_frame_dc (f);
351 /* Under certain conditions, this can be called at startup with
352 a console frame pointer before the GUI frame is created. An HDC
353 of 0 indicates this. */
354 if (hdc)
356 GetClientRect (FRAME_W32_WINDOW (f), &rect);
357 w32_clear_rect (f, hdc, &rect);
360 release_frame_dc (f, hdc);
363 #define OPAQUE_FRAME 255
365 void
366 x_set_frame_alpha (struct frame *f)
368 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
369 double alpha = 1.0;
370 double alpha_min = 1.0;
371 BYTE opac;
372 LONG ex_style;
373 HWND window = FRAME_W32_WINDOW (f);
375 /* Older versions of Windows do not support transparency. */
376 if (!pfnSetLayeredWindowAttributes)
377 return;
379 if (dpyinfo->x_highlight_frame == f)
380 alpha = f->alpha[0];
381 else
382 alpha = f->alpha[1];
384 if (FLOATP (Vframe_alpha_lower_limit))
385 alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
386 else if (INTEGERP (Vframe_alpha_lower_limit))
387 alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
389 if (alpha < 0.0)
390 return;
391 else if (alpha > 1.0)
392 alpha = 1.0;
393 else if (alpha < alpha_min && alpha_min <= 1.0)
394 alpha = alpha_min;
396 opac = alpha * OPAQUE_FRAME;
398 ex_style = GetWindowLong (window, GWL_EXSTYLE);
400 if (opac == OPAQUE_FRAME)
401 ex_style &= ~WS_EX_LAYERED;
402 else
403 ex_style |= WS_EX_LAYERED;
405 SetWindowLong (window, GWL_EXSTYLE, ex_style);
407 if (opac != OPAQUE_FRAME)
408 pfnSetLayeredWindowAttributes (window, 0, opac, LWA_ALPHA);
412 x_display_pixel_height (struct w32_display_info *dpyinfo)
414 HDC dc = GetDC (NULL);
415 int pixels = GetDeviceCaps (dc, VERTRES);
416 ReleaseDC (NULL, dc);
417 return pixels;
421 x_display_pixel_width (struct w32_display_info *dpyinfo)
423 HDC dc = GetDC (NULL);
424 int pixels = GetDeviceCaps (dc, HORZRES);
425 ReleaseDC (NULL, dc);
426 return pixels;
430 /***********************************************************************
431 Starting and ending an update
432 ***********************************************************************/
434 /* Start an update of frame F. This function is installed as a hook
435 for update_begin, i.e. it is called when update_begin is called.
436 This function is called prior to calls to x_update_window_begin for
437 each window being updated. */
439 static void
440 x_update_begin (struct frame *f)
442 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
444 if (! FRAME_W32_P (f))
445 return;
447 /* Regenerate display palette before drawing if list of requested
448 colors has changed. */
449 if (display_info->regen_palette)
451 w32_regenerate_palette (f);
452 display_info->regen_palette = FALSE;
457 /* Start update of window W. Set the global variable updated_window
458 to the window being updated and set output_cursor to the cursor
459 position of W. */
461 static void
462 x_update_window_begin (struct window *w)
464 struct frame *f = XFRAME (WINDOW_FRAME (w));
465 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
467 /* Hide the system caret during an update. */
468 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
470 SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
473 updated_window = w;
474 set_output_cursor (&w->cursor);
476 BLOCK_INPUT;
478 if (f == hlinfo->mouse_face_mouse_frame)
480 /* Don't do highlighting for mouse motion during the update. */
481 hlinfo->mouse_face_defer = 1;
483 /* If F needs to be redrawn, simply forget about any prior mouse
484 highlighting. */
485 if (FRAME_GARBAGED_P (f))
486 hlinfo->mouse_face_window = Qnil;
488 #if 0 /* Rows in a current matrix containing glyphs in mouse-face have
489 their mouse_face_p flag set, which means that they are always
490 unequal to rows in a desired matrix which never have that
491 flag set. So, rows containing mouse-face glyphs are never
492 scrolled, and we don't have to switch the mouse highlight off
493 here to prevent it from being scrolled. */
495 /* Can we tell that this update does not affect the window
496 where the mouse highlight is? If so, no need to turn off.
497 Likewise, don't do anything if the frame is garbaged;
498 in that case, the frame's current matrix that we would use
499 is all wrong, and we will redisplay that line anyway. */
500 if (!NILP (hlinfo->mouse_face_window)
501 && w == XWINDOW (hlinfo->mouse_face_window))
503 int i;
505 for (i = 0; i < w->desired_matrix->nrows; ++i)
506 if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
507 break;
509 if (i < w->desired_matrix->nrows)
510 clear_mouse_face (hlinfo);
512 #endif /* 0 */
515 UNBLOCK_INPUT;
518 /* Draw a vertical window border from (x,y0) to (x,y1) */
520 static void
521 w32_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
523 struct frame *f = XFRAME (WINDOW_FRAME (w));
524 RECT r;
525 HDC hdc;
526 struct face *face;
528 r.left = x;
529 r.right = x + 1;
530 r.top = y0;
531 r.bottom = y1;
533 hdc = get_frame_dc (f);
534 face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
535 if (face)
536 w32_fill_rect (f, hdc, face->foreground, &r);
537 else
538 w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
540 release_frame_dc (f, hdc);
544 /* End update of window W (which is equal to updated_window).
546 Draw vertical borders between horizontally adjacent windows, and
547 display W's cursor if CURSOR_ON_P is non-zero.
549 MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
550 glyphs in mouse-face were overwritten. In that case we have to
551 make sure that the mouse-highlight is properly redrawn.
553 W may be a menu bar pseudo-window in case we don't have X toolkit
554 support. Such windows don't have a cursor, so don't display it
555 here. */
557 static void
558 x_update_window_end (struct window *w, int cursor_on_p,
559 int mouse_face_overwritten_p)
561 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (XFRAME (w->frame));
563 if (!w->pseudo_window_p)
565 BLOCK_INPUT;
567 if (cursor_on_p)
568 display_and_set_cursor (w, 1, output_cursor.hpos,
569 output_cursor.vpos,
570 output_cursor.x, output_cursor.y);
572 if (draw_window_fringes (w, 1))
573 x_draw_vertical_border (w);
575 UNBLOCK_INPUT;
578 /* If a row with mouse-face was overwritten, arrange for
579 XTframe_up_to_date to redisplay the mouse highlight. */
580 if (mouse_face_overwritten_p)
582 hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
583 hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
584 hlinfo->mouse_face_window = Qnil;
587 /* Unhide the caret. This won't actually show the cursor, unless it
588 was visible before the corresponding call to HideCaret in
589 x_update_window_begin. */
590 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
592 SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
595 updated_window = NULL;
599 /* End update of frame F. This function is installed as a hook in
600 update_end. */
602 static void
603 x_update_end (struct frame *f)
605 if (! FRAME_W32_P (f))
606 return;
608 /* Mouse highlight may be displayed again. */
609 MOUSE_HL_INFO (f)->mouse_face_defer = 0;
613 /* This function is called from various places in xdisp.c whenever a
614 complete update has been performed. The global variable
615 updated_window is not available here. */
617 static void
618 w32_frame_up_to_date (struct frame *f)
620 if (FRAME_W32_P (f))
622 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
624 if (hlinfo->mouse_face_deferred_gc
625 || f == hlinfo->mouse_face_mouse_frame)
627 BLOCK_INPUT;
628 if (hlinfo->mouse_face_mouse_frame)
629 note_mouse_highlight (hlinfo->mouse_face_mouse_frame,
630 hlinfo->mouse_face_mouse_x,
631 hlinfo->mouse_face_mouse_y);
632 hlinfo->mouse_face_deferred_gc = 0;
633 UNBLOCK_INPUT;
639 /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
640 arrow bitmaps, or clear the fringes if no bitmaps are required
641 before DESIRED_ROW is made current. The window being updated is
642 found in updated_window. This function is called from
643 update_window_line only if it is known that there are differences
644 between bitmaps to be drawn between current row and DESIRED_ROW. */
646 static void
647 x_after_update_window_line (struct glyph_row *desired_row)
649 struct window *w = updated_window;
650 struct frame *f;
651 int width, height;
653 xassert (w);
655 if (!desired_row->mode_line_p && !w->pseudo_window_p)
656 desired_row->redraw_fringe_bitmaps_p = 1;
658 /* When a window has disappeared, make sure that no rest of
659 full-width rows stays visible in the internal border. Could
660 check here if updated_window is the leftmost/rightmost window,
661 but I guess it's not worth doing since vertically split windows
662 are almost never used, internal border is rarely set, and the
663 overhead is very small. */
664 if (windows_or_buffers_changed
665 && desired_row->full_width_p
666 && (f = XFRAME (w->frame),
667 width = FRAME_INTERNAL_BORDER_WIDTH (f),
668 width != 0)
669 && (height = desired_row->visible_height,
670 height > 0))
672 int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
674 BLOCK_INPUT;
676 HDC hdc = get_frame_dc (f);
677 w32_clear_area (f, hdc, 0, y, width, height);
678 w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
679 y, width, height);
680 release_frame_dc (f, hdc);
682 UNBLOCK_INPUT;
687 /* Draw the bitmap WHICH in one of the left or right fringes of
688 window W. ROW is the glyph row for which to display the bitmap; it
689 determines the vertical position at which the bitmap has to be
690 drawn. */
692 static void
693 w32_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
694 struct draw_fringe_bitmap_params *p)
696 struct frame *f = XFRAME (WINDOW_FRAME (w));
697 HDC hdc;
698 struct face *face = p->face;
700 hdc = get_frame_dc (f);
702 if (!p->overlay_p)
704 int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;
706 /* If the fringe is adjacent to the left (right) scroll bar of a
707 leftmost (rightmost, respectively) window, then extend its
708 background to the gap between the fringe and the bar. */
709 if ((WINDOW_LEFTMOST_P (w)
710 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
711 || (WINDOW_RIGHTMOST_P (w)
712 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
714 int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
716 if (sb_width > 0)
718 int bar_area_x = WINDOW_SCROLL_BAR_AREA_X (w);
719 int bar_area_width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
720 * FRAME_COLUMN_WIDTH (f));
722 if (bx < 0)
724 /* Bitmap fills the fringe. */
725 if (bar_area_x + bar_area_width == p->x)
726 bx = bar_area_x + sb_width;
727 else if (p->x + p->wd == bar_area_x)
728 bx = bar_area_x;
729 if (bx >= 0)
731 int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w);
733 nx = bar_area_width - sb_width;
734 by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height,
735 row->y));
736 ny = row->visible_height;
739 else
741 if (bar_area_x + bar_area_width == bx)
743 bx = bar_area_x + sb_width;
744 nx += bar_area_width - sb_width;
746 else if (bx + nx == bar_area_x)
747 nx += bar_area_width - sb_width;
752 if (bx >= 0 && nx > 0)
753 w32_fill_area (f, hdc, face->background, bx, by, nx, ny);
756 /* Must clip because of partially visible lines. */
757 w32_clip_to_row (w, row, -1, hdc);
759 if (p->which && p->which < max_fringe_bmp)
761 HBITMAP pixmap = fringe_bmp[p->which];
762 HDC compat_hdc;
763 HANDLE horig_obj;
765 compat_hdc = CreateCompatibleDC (hdc);
767 SaveDC (hdc);
769 horig_obj = SelectObject (compat_hdc, pixmap);
771 /* Paint overlays transparently. */
772 if (p->overlay_p)
774 HBRUSH h_brush, h_orig_brush;
776 SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
777 SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
778 h_brush = CreateSolidBrush (face->foreground);
779 h_orig_brush = SelectObject (hdc, h_brush);
781 BitBlt (hdc, p->x, p->y, p->wd, p->h,
782 compat_hdc, 0, p->dh,
783 DSTINVERT);
784 BitBlt (hdc, p->x, p->y, p->wd, p->h,
785 compat_hdc, 0, p->dh,
786 0x2E064A);
787 BitBlt (hdc, p->x, p->y, p->wd, p->h,
788 compat_hdc, 0, p->dh,
789 DSTINVERT);
791 SelectObject (hdc, h_orig_brush);
792 DeleteObject (h_brush);
794 else
796 SetTextColor (hdc, face->background);
797 SetBkColor (hdc, (p->cursor_p
798 ? f->output_data.w32->cursor_pixel
799 : face->foreground));
801 BitBlt (hdc, p->x, p->y, p->wd, p->h,
802 compat_hdc, 0, p->dh,
803 SRCCOPY);
806 SelectObject (compat_hdc, horig_obj);
807 DeleteDC (compat_hdc);
808 RestoreDC (hdc, -1);
811 w32_set_clip_rectangle (hdc, NULL);
813 release_frame_dc (f, hdc);
816 static void
817 w32_define_fringe_bitmap (int which, unsigned short *bits, int h, int wd)
819 if (which >= max_fringe_bmp)
821 int i = max_fringe_bmp;
822 max_fringe_bmp = which + 20;
823 fringe_bmp = (HBITMAP *) xrealloc (fringe_bmp, max_fringe_bmp * sizeof (HBITMAP));
824 while (i < max_fringe_bmp)
825 fringe_bmp[i++] = 0;
828 fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
831 static void
832 w32_destroy_fringe_bitmap (int which)
834 if (which >= max_fringe_bmp)
835 return;
837 if (fringe_bmp[which])
838 DeleteObject (fringe_bmp[which]);
839 fringe_bmp[which] = 0;
844 /* This is called when starting Emacs and when restarting after
845 suspend. When starting Emacs, no window is mapped. And nothing
846 must be done to Emacs's own window if it is suspended (though that
847 rarely happens). */
849 static void
850 w32_set_terminal_modes (struct terminal *term)
854 /* This is called when exiting or suspending Emacs. Exiting will make
855 the W32 windows go away, and suspending requires no action. */
857 static void
858 w32_reset_terminal_modes (struct terminal *term)
864 /***********************************************************************
865 Display Iterator
866 ***********************************************************************/
868 /* Function prototypes of this page. */
870 static void x_set_glyph_string_clipping (struct glyph_string *);
871 static void x_set_glyph_string_gc (struct glyph_string *);
872 static void x_draw_glyph_string_background (struct glyph_string *,
873 int);
874 static void x_draw_glyph_string_foreground (struct glyph_string *);
875 static void x_draw_composite_glyph_string_foreground (struct glyph_string *);
876 static void x_draw_glyph_string_box (struct glyph_string *);
877 static void x_draw_glyph_string (struct glyph_string *);
878 static void x_set_cursor_gc (struct glyph_string *);
879 static void x_set_mode_line_face_gc (struct glyph_string *);
880 static void x_set_mouse_face_gc (struct glyph_string *);
881 static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
882 static void w32_setup_relief_color (struct frame *, struct relief *,
883 double, int, COLORREF);
884 static void x_setup_relief_colors (struct glyph_string *);
885 static void x_draw_image_glyph_string (struct glyph_string *);
886 static void x_draw_image_relief (struct glyph_string *);
887 static void x_draw_image_foreground (struct glyph_string *);
888 static void w32_draw_image_foreground_1 (struct glyph_string *, HBITMAP);
889 static void x_clear_glyph_string_rect (struct glyph_string *, int,
890 int, int, int);
891 static void w32_draw_relief_rect (struct frame *, int, int, int, int,
892 int, int, int, int, int, int,
893 RECT *);
894 static void w32_draw_box_rect (struct glyph_string *, int, int, int, int,
895 int, int, int, RECT *);
898 /* Set S->gc to a suitable GC for drawing glyph string S in cursor
899 face. */
901 static void
902 x_set_cursor_gc (struct glyph_string *s)
904 if (s->font == FRAME_FONT (s->f)
905 && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
906 && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
907 && !s->cmp)
908 s->gc = s->f->output_data.w32->cursor_gc;
909 else
911 /* Cursor on non-default face: must merge. */
912 XGCValues xgcv;
913 unsigned long mask;
915 xgcv.background = s->f->output_data.w32->cursor_pixel;
916 xgcv.foreground = s->face->background;
918 /* If the glyph would be invisible, try a different foreground. */
919 if (xgcv.foreground == xgcv.background)
920 xgcv.foreground = s->face->foreground;
921 if (xgcv.foreground == xgcv.background)
922 xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
923 if (xgcv.foreground == xgcv.background)
924 xgcv.foreground = s->face->foreground;
926 /* Make sure the cursor is distinct from text in this face. */
927 if (xgcv.background == s->face->background
928 && xgcv.foreground == s->face->foreground)
930 xgcv.background = s->face->foreground;
931 xgcv.foreground = s->face->background;
934 IF_DEBUG (x_check_font (s->f, s->font));
935 xgcv.font = s->font;
936 mask = GCForeground | GCBackground | GCFont;
938 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
939 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
940 mask, &xgcv);
941 else
942 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
943 = XCreateGC (NULL, s->window, mask, &xgcv);
945 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
950 /* Set up S->gc of glyph string S for drawing text in mouse face. */
952 static void
953 x_set_mouse_face_gc (struct glyph_string *s)
955 int face_id;
956 struct face *face;
958 /* What face has to be used last for the mouse face? */
959 face_id = MOUSE_HL_INFO (s->f)->mouse_face_face_id;
960 face = FACE_FROM_ID (s->f, face_id);
961 if (face == NULL)
962 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
964 if (s->first_glyph->type == CHAR_GLYPH)
965 face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch, -1, Qnil);
966 else
967 face_id = FACE_FOR_CHAR (s->f, face, 0, -1, Qnil);
968 s->face = FACE_FROM_ID (s->f, face_id);
969 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
971 /* If font in this face is same as S->font, use it. */
972 if (s->font == s->face->font)
973 s->gc = s->face->gc;
974 else
976 /* Otherwise construct scratch_cursor_gc with values from FACE
977 but font FONT. */
978 XGCValues xgcv;
979 unsigned long mask;
981 xgcv.background = s->face->background;
982 xgcv.foreground = s->face->foreground;
983 IF_DEBUG (x_check_font (s->f, s->font));
984 xgcv.font = s->font;
985 mask = GCForeground | GCBackground | GCFont;
987 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
988 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
989 mask, &xgcv);
990 else
991 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
992 = XCreateGC (NULL, s->window, mask, &xgcv);
994 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
997 xassert (s->gc != 0);
1001 /* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
1002 Faces to use in the mode line have already been computed when the
1003 matrix was built, so there isn't much to do, here. */
1005 static inline void
1006 x_set_mode_line_face_gc (struct glyph_string *s)
1008 s->gc = s->face->gc;
1012 /* Set S->gc of glyph string S for drawing that glyph string. Set
1013 S->stippled_p to a non-zero value if the face of S has a stipple
1014 pattern. */
1016 static inline void
1017 x_set_glyph_string_gc (struct glyph_string *s)
1019 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1021 if (s->hl == DRAW_NORMAL_TEXT)
1023 s->gc = s->face->gc;
1024 s->stippled_p = s->face->stipple != 0;
1026 else if (s->hl == DRAW_INVERSE_VIDEO)
1028 x_set_mode_line_face_gc (s);
1029 s->stippled_p = s->face->stipple != 0;
1031 else if (s->hl == DRAW_CURSOR)
1033 x_set_cursor_gc (s);
1034 s->stippled_p = 0;
1036 else if (s->hl == DRAW_MOUSE_FACE)
1038 x_set_mouse_face_gc (s);
1039 s->stippled_p = s->face->stipple != 0;
1041 else if (s->hl == DRAW_IMAGE_RAISED
1042 || s->hl == DRAW_IMAGE_SUNKEN)
1044 s->gc = s->face->gc;
1045 s->stippled_p = s->face->stipple != 0;
1047 else
1049 s->gc = s->face->gc;
1050 s->stippled_p = s->face->stipple != 0;
1053 /* GC must have been set. */
1054 xassert (s->gc != 0);
1058 /* Set clipping for output of glyph string S. S may be part of a mode
1059 line or menu if we don't have X toolkit support. */
1061 static inline void
1062 x_set_glyph_string_clipping (struct glyph_string *s)
1064 RECT *r = s->clip;
1065 int n = get_glyph_string_clip_rects (s, r, 2);
1067 if (n == 1)
1068 w32_set_clip_rectangle (s->hdc, r);
1069 else if (n > 1)
1071 HRGN clip1 = CreateRectRgnIndirect (r);
1072 HRGN clip2 = CreateRectRgnIndirect (r + 1);
1073 if (CombineRgn (clip1, clip1, clip2, RGN_OR) != ERROR)
1074 SelectClipRgn (s->hdc, clip1);
1075 DeleteObject (clip1);
1076 DeleteObject (clip2);
1078 s->num_clips = n;
1081 /* Set SRC's clipping for output of glyph string DST. This is called
1082 when we are drawing DST's left_overhang or right_overhang only in
1083 the area of SRC. */
1085 static void
1086 x_set_glyph_string_clipping_exactly (struct glyph_string *src,
1087 struct glyph_string *dst)
1089 RECT r;
1091 r.left = src->x;
1092 r.right = r.left + src->width;
1093 r.top = src->y;
1094 r.bottom = r.top + src->height;
1095 dst->clip[0] = r;
1096 dst->num_clips = 1;
1097 w32_set_clip_rectangle (dst->hdc, &r);
1100 /* RIF:
1101 Compute left and right overhang of glyph string S. */
1103 static void
1104 w32_compute_glyph_string_overhangs (struct glyph_string *s)
1106 if (s->cmp == NULL
1107 && s->first_glyph->type == CHAR_GLYPH
1108 && !s->font_not_found_p)
1110 unsigned *code = alloca (sizeof (unsigned) * s->nchars);
1111 struct font *font = s->font;
1112 struct font_metrics metrics;
1113 int i;
1115 for (i = 0; i < s->nchars; i++)
1116 code[i] = s->char2b[i];
1117 font->driver->text_extents (font, code, s->nchars, &metrics);
1118 s->right_overhang = (metrics.rbearing > metrics.width
1119 ? metrics.rbearing - metrics.width : 0);
1120 s->left_overhang = metrics.lbearing < 0 ? -metrics.lbearing : 0;
1122 else if (s->cmp)
1124 s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
1125 s->left_overhang = -s->cmp->lbearing;
1129 /* Fill rectangle X, Y, W, H with background color of glyph string S. */
1131 static inline void
1132 x_clear_glyph_string_rect (struct glyph_string *s,
1133 int x, int y, int w, int h)
1135 int real_x = x;
1136 int real_y = y;
1137 int real_w = w;
1138 int real_h = h;
1139 #if 0
1140 /* Take clipping into account. */
1141 if (s->gc->clip_mask == Rect)
1143 real_x = max (real_x, s->gc->clip_rectangle.left);
1144 real_y = max (real_y, s->gc->clip_rectangle.top);
1145 real_w = min (real_w, s->gc->clip_rectangle.right
1146 - s->gc->clip_rectangle.left);
1147 real_h = min (real_h, s->gc->clip_rectangle.bottom
1148 - s->gc->clip_rectangle.top);
1150 #endif
1151 w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
1152 real_w, real_h);
1156 /* Draw the background of glyph_string S. If S->background_filled_p
1157 is non-zero don't draw it. FORCE_P non-zero means draw the
1158 background even if it wouldn't be drawn normally. This is used
1159 when a string preceding S draws into the background of S, or S
1160 contains the first component of a composition. */
1162 static void
1163 x_draw_glyph_string_background (struct glyph_string *s, int force_p)
1165 /* Nothing to do if background has already been drawn or if it
1166 shouldn't be drawn in the first place. */
1167 if (!s->background_filled_p)
1169 int box_line_width = max (s->face->box_line_width, 0);
1171 #if 0 /* TODO: stipple */
1172 if (s->stippled_p)
1174 /* Fill background with a stipple pattern. */
1175 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
1176 XFillRectangle (s->display, s->window, s->gc, s->x,
1177 s->y + box_line_width,
1178 s->background_width,
1179 s->height - 2 * box_line_width);
1180 XSetFillStyle (s->display, s->gc, FillSolid);
1181 s->background_filled_p = 1;
1183 else
1184 #endif
1185 if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1186 || s->font_not_found_p
1187 || s->extends_to_end_of_line_p
1188 || force_p)
1190 x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1191 s->background_width,
1192 s->height - 2 * box_line_width);
1193 s->background_filled_p = 1;
1199 /* Draw the foreground of glyph string S. */
1201 static void
1202 x_draw_glyph_string_foreground (struct glyph_string *s)
1204 int i, x;
1206 /* If first glyph of S has a left box line, start drawing the text
1207 of S to the right of that box line. */
1208 if (s->face->box != FACE_NO_BOX
1209 && s->first_glyph->left_box_line_p)
1210 x = s->x + eabs (s->face->box_line_width);
1211 else
1212 x = s->x;
1214 SetTextColor (s->hdc, s->gc->foreground);
1215 SetBkColor (s->hdc, s->gc->background);
1216 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1218 /* Draw characters of S as rectangles if S's font could not be
1219 loaded. */
1220 if (s->font_not_found_p)
1222 for (i = 0; i < s->nchars; ++i)
1224 struct glyph *g = s->first_glyph + i;
1226 w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
1227 s->height - 1);
1228 x += g->pixel_width;
1231 else
1233 struct font *font = s->font;
1234 int boff = font->baseline_offset;
1235 int y;
1236 HFONT old_font;
1238 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1240 if (font->vertical_centering)
1241 boff = VCENTER_BASELINE_OFFSET (font, s->f) - boff;
1243 y = s->ybase - boff;
1244 if (s->for_overlaps
1245 || (s->background_filled_p && s->hl != DRAW_CURSOR))
1246 font->driver->draw (s, 0, s->nchars, x, y, 0);
1247 else
1248 font->driver->draw (s, 0, s->nchars, x, y, 1);
1249 if (s->face->overstrike)
1250 font->driver->draw (s, 0, s->nchars, x + 1, y, 0);
1252 SelectObject (s->hdc, old_font);
1256 /* Draw the foreground of composite glyph string S. */
1258 static void
1259 x_draw_composite_glyph_string_foreground (struct glyph_string *s)
1261 int i, j, x;
1262 struct font *font = s->font;
1264 /* If first glyph of S has a left box line, start drawing the text
1265 of S to the right of that box line. */
1266 if (s->face && s->face->box != FACE_NO_BOX
1267 && s->first_glyph->left_box_line_p)
1268 x = s->x + eabs (s->face->box_line_width);
1269 else
1270 x = s->x;
1272 /* S is a glyph string for a composition. S->cmp_from is the index
1273 of the first character drawn for glyphs of this composition.
1274 S->cmp_from == 0 means we are drawing the very first character of
1275 this composition. */
1277 SetTextColor (s->hdc, s->gc->foreground);
1278 SetBkColor (s->hdc, s->gc->background);
1279 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1281 /* Draw a rectangle for the composition if the font for the very
1282 first character of the composition could not be loaded. */
1283 if (s->font_not_found_p)
1285 if (s->cmp_from == 0)
1286 w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
1287 s->height - 1);
1289 else if (! s->first_glyph->u.cmp.automatic)
1291 int y = s->ybase;
1292 HFONT old_font;
1294 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1296 for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
1297 if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
1299 int xx = x + s->cmp->offsets[j * 2];
1300 int yy = y - s->cmp->offsets[j * 2 + 1];
1302 font->driver->draw (s, j, j + 1, xx, yy, 0);
1303 if (s->face->overstrike)
1304 font->driver->draw (s, j, j + 1, xx + 1, yy, 0);
1306 SelectObject (s->hdc, old_font);
1308 else
1310 Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
1311 Lisp_Object glyph;
1312 int y = s->ybase;
1313 int width = 0;
1314 HFONT old_font;
1316 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1318 for (i = j = s->cmp_from; i < s->cmp_to; i++)
1320 glyph = LGSTRING_GLYPH (gstring, i);
1321 if (NILP (LGLYPH_ADJUSTMENT (glyph)))
1322 width += LGLYPH_WIDTH (glyph);
1323 else
1325 int xoff, yoff, wadjust;
1327 if (j < i)
1329 font->driver->draw (s, j, i, x, y, 0);
1330 x += width;
1332 xoff = LGLYPH_XOFF (glyph);
1333 yoff = LGLYPH_YOFF (glyph);
1334 wadjust = LGLYPH_WADJUST (glyph);
1335 font->driver->draw (s, i, i + 1, x + xoff, y + yoff, 0);
1336 x += wadjust;
1337 j = i + 1;
1338 width = 0;
1341 if (j < i)
1342 font->driver->draw (s, j, i, x, y, 0);
1344 SelectObject (s->hdc, old_font);
1349 /* Draw the foreground of glyph string S for glyphless characters. */
1351 static void
1352 x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
1354 struct glyph *glyph = s->first_glyph;
1355 XChar2b char2b[8];
1356 int x, i, j;
1357 int with_background;
1359 /* If first glyph of S has a left box line, start drawing the text
1360 of S to the right of that box line. */
1361 if (s->face->box != FACE_NO_BOX
1362 && s->first_glyph->left_box_line_p)
1363 x = s->x + eabs (s->face->box_line_width);
1364 else
1365 x = s->x;
1367 SetTextColor (s->hdc, s->gc->foreground);
1368 SetBkColor (s->hdc, s->gc->background);
1369 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1371 s->char2b = char2b;
1372 with_background = ! (s->for_overlaps
1373 || (s->background_filled_p && s->hl != DRAW_CURSOR));
1374 for (i = 0; i < s->nchars; i++, glyph++)
1376 char buf[7], *str = NULL;
1377 int len = glyph->u.glyphless.len;
1379 if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_ACRONYM)
1381 if (len > 1
1382 && CHAR_TABLE_P (Vglyphless_char_display)
1383 && (CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (Vglyphless_char_display))
1384 >= 1))
1386 Lisp_Object acronym
1387 = (! glyph->u.glyphless.for_no_font
1388 ? CHAR_TABLE_REF (Vglyphless_char_display,
1389 glyph->u.glyphless.ch)
1390 : XCHAR_TABLE (Vglyphless_char_display)->extras[0]);
1391 if (STRINGP (acronym))
1392 str = SSDATA (acronym);
1395 else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
1397 sprintf ((char *) buf, "%0*X",
1398 glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
1399 glyph->u.glyphless.ch);
1400 str = buf;
1403 if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
1404 w32_draw_rectangle (s->hdc, s->gc,
1405 x, s->ybase - glyph->ascent,
1406 glyph->pixel_width - 1,
1407 glyph->ascent + glyph->descent - 1);
1408 if (str)
1410 struct font *font = s->font;
1411 int upper_len = (len + 1) / 2;
1412 unsigned code;
1413 HFONT old_font;
1415 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1416 /* It is certain that all LEN characters in STR are ASCII. */
1417 for (j = 0; j < len; j++)
1419 code = font->driver->encode_char (font, str[j]);
1420 STORE_XCHAR2B (char2b + j, code >> 8, code & 0xFF);
1422 font->driver->draw (s, 0, upper_len,
1423 x + glyph->slice.glyphless.upper_xoff,
1424 s->ybase + glyph->slice.glyphless.upper_yoff,
1425 with_background);
1426 font->driver->draw (s, upper_len, len,
1427 x + glyph->slice.glyphless.lower_xoff,
1428 s->ybase + glyph->slice.glyphless.lower_yoff,
1429 with_background);
1430 SelectObject (s->hdc, old_font);
1432 x += glyph->pixel_width;
1437 /* Brightness beyond which a color won't have its highlight brightness
1438 boosted.
1440 Nominally, highlight colors for `3d' faces are calculated by
1441 brightening an object's color by a constant scale factor, but this
1442 doesn't yield good results for dark colors, so for colors who's
1443 brightness is less than this value (on a scale of 0-255) have to
1444 use an additional additive factor.
1446 The value here is set so that the default menu-bar/mode-line color
1447 (grey75) will not have its highlights changed at all. */
1448 #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 187
1451 /* Allocate a color which is lighter or darker than *COLOR by FACTOR
1452 or DELTA. Try a color with RGB values multiplied by FACTOR first.
1453 If this produces the same color as COLOR, try a color where all RGB
1454 values have DELTA added. Return the allocated color in *COLOR.
1455 DISPLAY is the X display, CMAP is the colormap to operate on.
1456 Value is non-zero if successful. */
1458 static int
1459 w32_alloc_lighter_color (struct frame *f, COLORREF *color,
1460 double factor, int delta)
1462 COLORREF new;
1463 long bright;
1465 /* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
1466 delta /= 256;
1468 /* Change RGB values by specified FACTOR. Avoid overflow! */
1469 xassert (factor >= 0);
1470 new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
1471 min (0xff, factor * GetGValue (*color)),
1472 min (0xff, factor * GetBValue (*color)));
1474 /* Calculate brightness of COLOR. */
1475 bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
1476 + GetBValue (*color)) / 6;
1478 /* We only boost colors that are darker than
1479 HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
1480 if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
1481 /* Make an additive adjustment to NEW, because it's dark enough so
1482 that scaling by FACTOR alone isn't enough. */
1484 /* How far below the limit this color is (0 - 1, 1 being darker). */
1485 double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
1486 /* The additive adjustment. */
1487 int min_delta = delta * dimness * factor / 2;
1489 if (factor < 1)
1490 new = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
1491 max (0, min (0xff, min_delta - GetGValue (*color))),
1492 max (0, min (0xff, min_delta - GetBValue (*color))));
1493 else
1494 new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
1495 max (0, min (0xff, min_delta + GetGValue (*color))),
1496 max (0, min (0xff, min_delta + GetBValue (*color))));
1499 if (new == *color)
1500 new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
1501 max (0, min (0xff, delta + GetGValue (*color))),
1502 max (0, min (0xff, delta + GetBValue (*color))));
1504 /* TODO: Map to palette and retry with delta if same? */
1505 /* TODO: Free colors (if using palette)? */
1507 if (new == *color)
1508 return 0;
1510 *color = new;
1512 return 1;
1515 /* On frame F, translate pixel colors to RGB values for the NCOLORS
1516 colors in COLORS. On W32, we no longer try to map colors to
1517 a palette. */
1518 void
1519 x_query_colors (struct frame *f, XColor *colors, int ncolors)
1521 int i;
1523 for (i = 0; i < ncolors; i++)
1525 DWORD pixel = colors[i].pixel;
1526 /* Convert to a 16 bit value in range 0 - 0xffff. */
1527 colors[i].red = GetRValue (pixel) * 257;
1528 colors[i].green = GetGValue (pixel) * 257;
1529 colors[i].blue = GetBValue (pixel) * 257;
1533 void
1534 x_query_color (struct frame *f, XColor *color)
1536 x_query_colors (f, color, 1);
1540 /* Set up the foreground color for drawing relief lines of glyph
1541 string S. RELIEF is a pointer to a struct relief containing the GC
1542 with which lines will be drawn. Use a color that is FACTOR or
1543 DELTA lighter or darker than the relief's background which is found
1544 in S->f->output_data.x->relief_background. If such a color cannot
1545 be allocated, use DEFAULT_PIXEL, instead. */
1547 static void
1548 w32_setup_relief_color (struct frame *f, struct relief *relief, double factor,
1549 int delta, COLORREF default_pixel)
1551 XGCValues xgcv;
1552 struct w32_output *di = f->output_data.w32;
1553 unsigned long mask = GCForeground;
1554 COLORREF pixel;
1555 COLORREF background = di->relief_background;
1556 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
1558 /* TODO: Free colors (if using palette)? */
1560 /* Allocate new color. */
1561 xgcv.foreground = default_pixel;
1562 pixel = background;
1563 if (w32_alloc_lighter_color (f, &pixel, factor, delta))
1565 relief->allocated_p = 1;
1566 xgcv.foreground = relief->pixel = pixel;
1569 if (relief->gc == 0)
1571 #if 0 /* TODO: stipple */
1572 xgcv.stipple = dpyinfo->gray;
1573 mask |= GCStipple;
1574 #endif
1575 relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
1577 else
1578 XChangeGC (NULL, relief->gc, mask, &xgcv);
1582 /* Set up colors for the relief lines around glyph string S. */
1584 static void
1585 x_setup_relief_colors (struct glyph_string *s)
1587 struct w32_output *di = s->f->output_data.w32;
1588 COLORREF color;
1590 if (s->face->use_box_color_for_shadows_p)
1591 color = s->face->box_color;
1592 else if (s->first_glyph->type == IMAGE_GLYPH
1593 && s->img->pixmap
1594 && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
1595 color = IMAGE_BACKGROUND (s->img, s->f, 0);
1596 else
1597 color = s->gc->background;
1599 if (di->white_relief.gc == 0
1600 || color != di->relief_background)
1602 di->relief_background = color;
1603 w32_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
1604 WHITE_PIX_DEFAULT (s->f));
1605 w32_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
1606 BLACK_PIX_DEFAULT (s->f));
1611 /* Draw a relief on frame F inside the rectangle given by LEFT_X,
1612 TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief
1613 to draw, it must be >= 0. RAISED_P non-zero means draw a raised
1614 relief. LEFT_P non-zero means draw a relief on the left side of
1615 the rectangle. RIGHT_P non-zero means draw a relief on the right
1616 side of the rectangle. CLIP_RECT is the clipping rectangle to use
1617 when drawing. */
1619 static void
1620 w32_draw_relief_rect (struct frame *f,
1621 int left_x, int top_y, int right_x, int bottom_y, int width,
1622 int raised_p, int top_p, int bot_p, int left_p, int right_p,
1623 RECT *clip_rect)
1625 int i;
1626 XGCValues gc;
1627 HDC hdc = get_frame_dc (f);
1629 if (raised_p)
1630 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1631 else
1632 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1634 w32_set_clip_rectangle (hdc, clip_rect);
1636 /* Top. */
1637 if (top_p)
1638 for (i = 0; i < width; ++i)
1639 w32_fill_area (f, hdc, gc.foreground,
1640 left_x + i * left_p, top_y + i,
1641 right_x - left_x - i * (left_p + right_p ) + 1, 1);
1643 /* Left. */
1644 if (left_p)
1645 for (i = 0; i < width; ++i)
1646 w32_fill_area (f, hdc, gc.foreground,
1647 left_x + i, top_y + i, 1,
1648 bottom_y - top_y - 2 * i + 1);
1650 if (raised_p)
1651 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1652 else
1653 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1655 /* Bottom. */
1656 if (bot_p)
1657 for (i = 0; i < width; ++i)
1658 w32_fill_area (f, hdc, gc.foreground,
1659 left_x + i * left_p, bottom_y - i,
1660 right_x - left_x - i * (left_p + right_p) + 1, 1);
1662 /* Right. */
1663 if (right_p)
1664 for (i = 0; i < width; ++i)
1665 w32_fill_area (f, hdc, gc.foreground,
1666 right_x - i, top_y + i + 1, 1,
1667 bottom_y - top_y - 2 * i - 1);
1669 w32_set_clip_rectangle (hdc, NULL);
1671 release_frame_dc (f, hdc);
1675 /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
1676 RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
1677 draw, it must be >= 0. LEFT_P non-zero means draw a line on the
1678 left side of the rectangle. RIGHT_P non-zero means draw a line
1679 on the right side of the rectangle. CLIP_RECT is the clipping
1680 rectangle to use when drawing. */
1682 static void
1683 w32_draw_box_rect (struct glyph_string *s,
1684 int left_x, int top_y, int right_x, int bottom_y, int width,
1685 int left_p, int right_p, RECT *clip_rect)
1687 w32_set_clip_rectangle (s->hdc, clip_rect);
1689 /* Top. */
1690 w32_fill_area (s->f, s->hdc, s->face->box_color,
1691 left_x, top_y, right_x - left_x + 1, width);
1693 /* Left. */
1694 if (left_p)
1696 w32_fill_area (s->f, s->hdc, s->face->box_color,
1697 left_x, top_y, width, bottom_y - top_y + 1);
1700 /* Bottom. */
1701 w32_fill_area (s->f, s->hdc, s->face->box_color,
1702 left_x, bottom_y - width + 1, right_x - left_x + 1, width);
1704 /* Right. */
1705 if (right_p)
1707 w32_fill_area (s->f, s->hdc, s->face->box_color,
1708 right_x - width + 1, top_y, width, bottom_y - top_y + 1);
1711 w32_set_clip_rectangle (s->hdc, NULL);
1715 /* Draw a box around glyph string S. */
1717 static void
1718 x_draw_glyph_string_box (struct glyph_string *s)
1720 int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
1721 int left_p, right_p;
1722 struct glyph *last_glyph;
1723 RECT clip_rect;
1725 last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
1726 ? WINDOW_RIGHT_EDGE_X (s->w)
1727 : window_box_right (s->w, s->area));
1729 /* The glyph that may have a right box line. */
1730 last_glyph = (s->cmp || s->img
1731 ? s->first_glyph
1732 : s->first_glyph + s->nchars - 1);
1734 width = eabs (s->face->box_line_width);
1735 raised_p = s->face->box == FACE_RAISED_BOX;
1736 left_x = s->x;
1737 right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
1738 ? last_x - 1
1739 : min (last_x, s->x + s->background_width) - 1));
1740 top_y = s->y;
1741 bottom_y = top_y + s->height - 1;
1743 left_p = (s->first_glyph->left_box_line_p
1744 || (s->hl == DRAW_MOUSE_FACE
1745 && (s->prev == NULL
1746 || s->prev->hl != s->hl)));
1747 right_p = (last_glyph->right_box_line_p
1748 || (s->hl == DRAW_MOUSE_FACE
1749 && (s->next == NULL
1750 || s->next->hl != s->hl)));
1752 get_glyph_string_clip_rect (s, &clip_rect);
1754 if (s->face->box == FACE_SIMPLE_BOX)
1755 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1756 left_p, right_p, &clip_rect);
1757 else
1759 x_setup_relief_colors (s);
1760 w32_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
1761 width, raised_p, 1, 1, left_p, right_p, &clip_rect);
1766 /* Draw foreground of image glyph string S. */
1768 static void
1769 x_draw_image_foreground (struct glyph_string *s)
1771 int x = s->x;
1772 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1774 /* If first glyph of S has a left box line, start drawing it to the
1775 right of that line. */
1776 if (s->face->box != FACE_NO_BOX
1777 && s->first_glyph->left_box_line_p
1778 && s->slice.x == 0)
1779 x += eabs (s->face->box_line_width);
1781 /* If there is a margin around the image, adjust x- and y-position
1782 by that margin. */
1783 if (s->slice.x == 0)
1784 x += s->img->hmargin;
1785 if (s->slice.y == 0)
1786 y += s->img->vmargin;
1788 SaveDC (s->hdc);
1790 if (s->img->pixmap)
1792 HDC compat_hdc = CreateCompatibleDC (s->hdc);
1793 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1794 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
1795 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1796 SetBkColor (compat_hdc, RGB (255, 255, 255));
1797 SetTextColor (s->hdc, RGB (0, 0, 0));
1798 x_set_glyph_string_clipping (s);
1800 if (s->img->mask)
1802 HDC mask_dc = CreateCompatibleDC (s->hdc);
1803 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1805 SetTextColor (s->hdc, RGB (255, 255, 255));
1806 SetBkColor (s->hdc, RGB (0, 0, 0));
1808 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1809 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1810 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1811 mask_dc, s->slice.x, s->slice.y, SRCAND);
1812 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1813 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1815 SelectObject (mask_dc, mask_orig_obj);
1816 DeleteDC (mask_dc);
1818 else
1820 SetTextColor (s->hdc, s->gc->foreground);
1821 SetBkColor (s->hdc, s->gc->background);
1823 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1824 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
1826 /* When the image has a mask, we can expect that at
1827 least part of a mouse highlight or a block cursor will
1828 be visible. If the image doesn't have a mask, make
1829 a block cursor visible by drawing a rectangle around
1830 the image. I believe it's looking better if we do
1831 nothing here for mouse-face. */
1832 if (s->hl == DRAW_CURSOR)
1834 int r = s->img->relief;
1835 if (r < 0) r = -r;
1836 w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
1837 s->slice.width + r*2 - 1,
1838 s->slice.height + r*2 - 1);
1842 w32_set_clip_rectangle (s->hdc, NULL);
1843 SelectObject (s->hdc, orig_brush);
1844 DeleteObject (fg_brush);
1845 SelectObject (compat_hdc, orig_obj);
1846 DeleteDC (compat_hdc);
1848 else
1849 w32_draw_rectangle (s->hdc, s->gc, x, y,
1850 s->slice.width - 1, s->slice.height - 1);
1852 RestoreDC (s->hdc ,-1);
1856 /* Draw a relief around the image glyph string S. */
1858 static void
1859 x_draw_image_relief (struct glyph_string *s)
1861 int x0, y0, x1, y1, thick, raised_p;
1862 RECT r;
1863 int x = s->x;
1864 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1866 /* If first glyph of S has a left box line, start drawing it to the
1867 right of that line. */
1868 if (s->face->box != FACE_NO_BOX
1869 && s->first_glyph->left_box_line_p
1870 && s->slice.x == 0)
1871 x += eabs (s->face->box_line_width);
1873 /* If there is a margin around the image, adjust x- and y-position
1874 by that margin. */
1875 if (s->slice.x == 0)
1876 x += s->img->hmargin;
1877 if (s->slice.y == 0)
1878 y += s->img->vmargin;
1880 if (s->hl == DRAW_IMAGE_SUNKEN
1881 || s->hl == DRAW_IMAGE_RAISED)
1883 thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
1884 raised_p = s->hl == DRAW_IMAGE_RAISED;
1886 else
1888 thick = eabs (s->img->relief);
1889 raised_p = s->img->relief > 0;
1892 x0 = x - thick;
1893 y0 = y - thick;
1894 x1 = x + s->slice.width + thick - 1;
1895 y1 = y + s->slice.height + thick - 1;
1897 x_setup_relief_colors (s);
1898 get_glyph_string_clip_rect (s, &r);
1899 w32_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p,
1900 s->slice.y == 0,
1901 s->slice.y + s->slice.height == s->img->height,
1902 s->slice.x == 0,
1903 s->slice.x + s->slice.width == s->img->width,
1904 &r);
1908 /* Draw the foreground of image glyph string S to PIXMAP. */
1910 static void
1911 w32_draw_image_foreground_1 (struct glyph_string *s, HBITMAP pixmap)
1913 HDC hdc = CreateCompatibleDC (s->hdc);
1914 HGDIOBJ orig_hdc_obj = SelectObject (hdc, pixmap);
1915 int x = 0;
1916 int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice);
1918 /* If first glyph of S has a left box line, start drawing it to the
1919 right of that line. */
1920 if (s->face->box != FACE_NO_BOX
1921 && s->first_glyph->left_box_line_p
1922 && s->slice.x == 0)
1923 x += eabs (s->face->box_line_width);
1925 /* If there is a margin around the image, adjust x- and y-position
1926 by that margin. */
1927 if (s->slice.x == 0)
1928 x += s->img->hmargin;
1929 if (s->slice.y == 0)
1930 y += s->img->vmargin;
1932 if (s->img->pixmap)
1934 HDC compat_hdc = CreateCompatibleDC (hdc);
1935 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1936 HBRUSH orig_brush = SelectObject (hdc, fg_brush);
1937 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1939 if (s->img->mask)
1941 HDC mask_dc = CreateCompatibleDC (hdc);
1942 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1944 SetTextColor (hdc, RGB (0, 0, 0));
1945 SetBkColor (hdc, RGB (255, 255, 255));
1946 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1947 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1948 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1949 mask_dc, s->slice.x, s->slice.y, SRCAND);
1950 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1951 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1953 SelectObject (mask_dc, mask_orig_obj);
1954 DeleteDC (mask_dc);
1956 else
1958 SetTextColor (hdc, s->gc->foreground);
1959 SetBkColor (hdc, s->gc->background);
1961 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1962 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
1964 /* When the image has a mask, we can expect that at
1965 least part of a mouse highlight or a block cursor will
1966 be visible. If the image doesn't have a mask, make
1967 a block cursor visible by drawing a rectangle around
1968 the image. I believe it's looking better if we do
1969 nothing here for mouse-face. */
1970 if (s->hl == DRAW_CURSOR)
1972 int r = s->img->relief;
1973 if (r < 0) r = -r;
1974 w32_draw_rectangle (hdc, s->gc, x - r, y - r,
1975 s->slice.width + r*2 - 1,
1976 s->slice.height + r*2 - 1);
1980 SelectObject (hdc, orig_brush);
1981 DeleteObject (fg_brush);
1982 SelectObject (compat_hdc, orig_obj);
1983 DeleteDC (compat_hdc);
1985 else
1986 w32_draw_rectangle (hdc, s->gc, x, y,
1987 s->slice.width - 1, s->slice.height - 1);
1989 SelectObject (hdc, orig_hdc_obj);
1990 DeleteDC (hdc);
1994 /* Draw part of the background of glyph string S. X, Y, W, and H
1995 give the rectangle to draw. */
1997 static void
1998 x_draw_glyph_string_bg_rect (struct glyph_string *s, int x, int y, int w, int h)
2000 #if 0 /* TODO: stipple */
2001 if (s->stippled_p)
2003 /* Fill background with a stipple pattern. */
2004 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2005 XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
2006 XSetFillStyle (s->display, s->gc, FillSolid);
2008 else
2009 #endif
2010 x_clear_glyph_string_rect (s, x, y, w, h);
2014 /* Draw image glyph string S.
2016 s->y
2017 s->x +-------------------------
2018 | s->face->box
2020 | +-------------------------
2021 | | s->img->vmargin
2023 | | +-------------------
2024 | | | the image
2028 static void
2029 x_draw_image_glyph_string (struct glyph_string *s)
2031 int x, y;
2032 int box_line_hwidth = eabs (s->face->box_line_width);
2033 int box_line_vwidth = max (s->face->box_line_width, 0);
2034 int height;
2035 HBITMAP pixmap = 0;
2037 height = s->height - 2 * box_line_vwidth;
2039 /* Fill background with face under the image. Do it only if row is
2040 taller than image or if image has a clip mask to reduce
2041 flickering. */
2042 s->stippled_p = s->face->stipple != 0;
2043 if (height > s->slice.height
2044 || s->img->hmargin
2045 || s->img->vmargin
2046 || s->img->mask
2047 || s->img->pixmap == 0
2048 || s->width != s->background_width)
2050 x = s->x;
2051 if (s->first_glyph->left_box_line_p
2052 && s->slice.x == 0)
2053 x += box_line_hwidth;
2055 y = s->y;
2056 if (s->slice.y == 0)
2057 y += box_line_vwidth;
2059 #if 0 /* TODO: figure out if we need to do this on Windows. */
2060 if (s->img->mask)
2062 /* Create a pixmap as large as the glyph string. Fill it
2063 with the background color. Copy the image to it, using
2064 its mask. Copy the temporary pixmap to the display. */
2065 Screen *screen = FRAME_X_SCREEN (s->f);
2066 int depth = DefaultDepthOfScreen (screen);
2068 /* Create a pixmap as large as the glyph string. */
2069 pixmap = XCreatePixmap (s->display, s->window,
2070 s->background_width,
2071 s->height, depth);
2073 /* Don't clip in the following because we're working on the
2074 pixmap. */
2075 XSetClipMask (s->display, s->gc, None);
2077 /* Fill the pixmap with the background color/stipple. */
2078 if (s->stippled_p)
2080 /* Fill background with a stipple pattern. */
2081 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2082 XFillRectangle (s->display, pixmap, s->gc,
2083 0, 0, s->background_width, s->height);
2084 XSetFillStyle (s->display, s->gc, FillSolid);
2086 else
2088 XGCValues xgcv;
2089 XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
2090 &xgcv);
2091 XSetForeground (s->display, s->gc, xgcv.background);
2092 XFillRectangle (s->display, pixmap, s->gc,
2093 0, 0, s->background_width, s->height);
2094 XSetForeground (s->display, s->gc, xgcv.foreground);
2097 else
2098 #endif
2099 x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
2101 s->background_filled_p = 1;
2104 /* Draw the foreground. */
2105 if (pixmap != 0)
2107 w32_draw_image_foreground_1 (s, pixmap);
2108 x_set_glyph_string_clipping (s);
2110 HDC compat_hdc = CreateCompatibleDC (s->hdc);
2111 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2112 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
2113 HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
2115 SetTextColor (s->hdc, s->gc->foreground);
2116 SetBkColor (s->hdc, s->gc->background);
2117 BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
2118 compat_hdc, 0, 0, SRCCOPY);
2120 SelectObject (s->hdc, orig_brush);
2121 DeleteObject (fg_brush);
2122 SelectObject (compat_hdc, orig_obj);
2123 DeleteDC (compat_hdc);
2125 DeleteObject (pixmap);
2126 pixmap = 0;
2128 else
2129 x_draw_image_foreground (s);
2131 /* If we must draw a relief around the image, do it. */
2132 if (s->img->relief
2133 || s->hl == DRAW_IMAGE_RAISED
2134 || s->hl == DRAW_IMAGE_SUNKEN)
2135 x_draw_image_relief (s);
2139 /* Draw stretch glyph string S. */
2141 static void
2142 x_draw_stretch_glyph_string (struct glyph_string *s)
2144 xassert (s->first_glyph->type == STRETCH_GLYPH);
2146 if (s->hl == DRAW_CURSOR
2147 && !x_stretch_cursor_p)
2149 /* If `x-stretch-cursor' is nil, don't draw a block cursor as
2150 wide as the stretch glyph. */
2151 int width, background_width = s->background_width;
2152 int x = s->x;
2154 if (!s->row->reversed_p)
2156 int left_x = window_box_left_offset (s->w, TEXT_AREA);
2158 if (x < left_x)
2160 background_width -= left_x - x;
2161 x = left_x;
2164 else
2166 /* In R2L rows, draw the cursor on the right edge of the
2167 stretch glyph. */
2168 int right_x = window_box_right_offset (s->w, TEXT_AREA);
2170 if (x + background_width > right_x)
2171 background_width -= x - right_x;
2172 x += background_width;
2174 width = min (FRAME_COLUMN_WIDTH (s->f), background_width);
2175 if (s->row->reversed_p)
2176 x -= width;
2178 /* Draw cursor. */
2179 x_draw_glyph_string_bg_rect (s, x, s->y, width, s->height);
2181 /* Clear rest using the GC of the original non-cursor face. */
2182 if (width < background_width)
2184 XGCValues *gc = s->face->gc;
2185 int y = s->y;
2186 int w = background_width - width, h = s->height;
2187 RECT r;
2188 HDC hdc = s->hdc;
2190 if (!s->row->reversed_p)
2191 x += width;
2192 else
2193 x = s->x;
2194 if (s->row->mouse_face_p
2195 && cursor_in_mouse_face_p (s->w))
2197 x_set_mouse_face_gc (s);
2198 gc = s->gc;
2200 else
2201 gc = s->face->gc;
2203 get_glyph_string_clip_rect (s, &r);
2204 w32_set_clip_rectangle (hdc, &r);
2206 #if 0 /* TODO: stipple */
2207 if (s->face->stipple)
2209 /* Fill background with a stipple pattern. */
2210 XSetFillStyle (s->display, gc, FillOpaqueStippled);
2211 XFillRectangle (s->display, s->window, gc, x, y, w, h);
2212 XSetFillStyle (s->display, gc, FillSolid);
2214 else
2215 #endif
2217 w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
2221 else if (!s->background_filled_p)
2223 int background_width = s->background_width;
2224 int x = s->x, left_x = window_box_left_offset (s->w, TEXT_AREA);
2226 /* Don't draw into left margin, fringe or scrollbar area
2227 except for header line and mode line. */
2228 if (x < left_x && !s->row->mode_line_p)
2230 background_width -= left_x - x;
2231 x = left_x;
2233 if (background_width > 0)
2234 x_draw_glyph_string_bg_rect (s, x, s->y, background_width, s->height);
2237 s->background_filled_p = 1;
2241 /* Draw glyph string S. */
2243 static void
2244 x_draw_glyph_string (struct glyph_string *s)
2246 int relief_drawn_p = 0;
2248 /* If S draws into the background of its successor, draw the
2249 background of the successor first so that S can draw into it.
2250 This makes S->next use XDrawString instead of XDrawImageString. */
2251 if (s->next && s->right_overhang && !s->for_overlaps)
2253 int width;
2254 struct glyph_string *next;
2255 for (width = 0, next = s->next;
2256 next && width < s->right_overhang;
2257 width += next->width, next = next->next)
2258 if (next->first_glyph->type != IMAGE_GLYPH)
2260 x_set_glyph_string_gc (next);
2261 x_set_glyph_string_clipping (next);
2262 if (next->first_glyph->type == STRETCH_GLYPH)
2263 x_draw_stretch_glyph_string (next);
2264 else
2265 x_draw_glyph_string_background (next, 1);
2266 next->num_clips = 0;
2270 /* Set up S->gc, set clipping and draw S. */
2271 x_set_glyph_string_gc (s);
2273 /* Draw relief (if any) in advance for char/composition so that the
2274 glyph string can be drawn over it. */
2275 if (!s->for_overlaps
2276 && s->face->box != FACE_NO_BOX
2277 && (s->first_glyph->type == CHAR_GLYPH
2278 || s->first_glyph->type == COMPOSITE_GLYPH))
2281 x_set_glyph_string_clipping (s);
2282 x_draw_glyph_string_background (s, 1);
2283 x_draw_glyph_string_box (s);
2284 x_set_glyph_string_clipping (s);
2285 relief_drawn_p = 1;
2287 else if (!s->clip_head /* draw_glyphs didn't specify a clip mask. */
2288 && !s->clip_tail
2289 && ((s->prev && s->prev->hl != s->hl && s->left_overhang)
2290 || (s->next && s->next->hl != s->hl && s->right_overhang)))
2291 /* We must clip just this glyph. left_overhang part has already
2292 drawn when s->prev was drawn, and right_overhang part will be
2293 drawn later when s->next is drawn. */
2294 x_set_glyph_string_clipping_exactly (s, s);
2295 else
2296 x_set_glyph_string_clipping (s);
2298 switch (s->first_glyph->type)
2300 case IMAGE_GLYPH:
2301 x_draw_image_glyph_string (s);
2302 break;
2304 case STRETCH_GLYPH:
2305 x_draw_stretch_glyph_string (s);
2306 break;
2308 case CHAR_GLYPH:
2309 if (s->for_overlaps)
2310 s->background_filled_p = 1;
2311 else
2312 x_draw_glyph_string_background (s, 0);
2313 x_draw_glyph_string_foreground (s);
2314 break;
2316 case COMPOSITE_GLYPH:
2317 if (s->for_overlaps || (s->cmp_from > 0
2318 && ! s->first_glyph->u.cmp.automatic))
2319 s->background_filled_p = 1;
2320 else
2321 x_draw_glyph_string_background (s, 1);
2322 x_draw_composite_glyph_string_foreground (s);
2323 break;
2325 case GLYPHLESS_GLYPH:
2326 if (s->for_overlaps)
2327 s->background_filled_p = 1;
2328 else
2329 x_draw_glyph_string_background (s, 0);
2330 x_draw_glyphless_glyph_string_foreground (s);
2331 break;
2333 default:
2334 abort ();
2337 if (!s->for_overlaps)
2339 /* Draw underline. */
2340 if (s->face->underline_p)
2342 unsigned long thickness, position;
2343 int y;
2345 if (s->prev && s->prev->face->underline_p)
2347 /* We use the same underline style as the previous one. */
2348 thickness = s->prev->underline_thickness;
2349 position = s->prev->underline_position;
2351 else
2353 /* Get the underline thickness. Default is 1 pixel. */
2354 if (s->font && s->font->underline_thickness > 0)
2355 thickness = s->font->underline_thickness;
2356 else
2357 thickness = 1;
2358 if (x_underline_at_descent_line)
2359 position = (s->height - thickness) - (s->ybase - s->y);
2360 else
2362 /* Get the underline position. This is the recommended
2363 vertical offset in pixels from the baseline to the top of
2364 the underline. This is a signed value according to the
2365 specs, and its default is
2367 ROUND ((maximum_descent) / 2), with
2368 ROUND (x) = floor (x + 0.5) */
2370 if (x_use_underline_position_properties
2371 && s->font && s->font->underline_position >= 0)
2372 position = s->font->underline_position;
2373 else if (s->font)
2374 position = (s->font->descent + 1) / 2;
2376 position = max (position, underline_minimum_offset);
2378 /* Check the sanity of thickness and position. We should
2379 avoid drawing underline out of the current line area. */
2380 if (s->y + s->height <= s->ybase + position)
2381 position = (s->height - 1) - (s->ybase - s->y);
2382 if (s->y + s->height < s->ybase + position + thickness)
2383 thickness = (s->y + s->height) - (s->ybase + position);
2384 s->underline_thickness = thickness;
2385 s->underline_position =position;
2386 y = s->ybase + position;
2387 if (s->face->underline_defaulted_p)
2389 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2390 y, s->width, 1);
2392 else
2394 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2395 y, s->width, 1);
2398 /* Draw overline. */
2399 if (s->face->overline_p)
2401 unsigned long dy = 0, h = 1;
2403 if (s->face->overline_color_defaulted_p)
2405 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2406 s->y + dy, s->width, h);
2408 else
2410 w32_fill_area (s->f, s->hdc, s->face->overline_color, s->x,
2411 s->y + dy, s->width, h);
2415 /* Draw strike-through. */
2416 if (s->face->strike_through_p
2417 && !FONT_TEXTMETRIC (s->font).tmStruckOut)
2419 unsigned long h = 1;
2420 unsigned long dy = (s->height - h) / 2;
2422 if (s->face->strike_through_color_defaulted_p)
2424 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
2425 s->width, h);
2427 else
2429 w32_fill_area (s->f, s->hdc, s->face->strike_through_color, s->x,
2430 s->y + dy, s->width, h);
2434 /* Draw relief if not yet drawn. */
2435 if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
2436 x_draw_glyph_string_box (s);
2438 if (s->prev)
2440 struct glyph_string *prev;
2442 for (prev = s->prev; prev; prev = prev->prev)
2443 if (prev->hl != s->hl
2444 && prev->x + prev->width + prev->right_overhang > s->x)
2446 /* As prev was drawn while clipped to its own area, we
2447 must draw the right_overhang part using s->hl now. */
2448 enum draw_glyphs_face save = prev->hl;
2450 prev->hl = s->hl;
2451 x_set_glyph_string_gc (prev);
2452 x_set_glyph_string_clipping_exactly (s, prev);
2453 if (prev->first_glyph->type == CHAR_GLYPH)
2454 x_draw_glyph_string_foreground (prev);
2455 else
2456 x_draw_composite_glyph_string_foreground (prev);
2457 w32_set_clip_rectangle (prev->hdc, NULL);
2458 prev->hl = save;
2459 prev->num_clips = 0;
2463 if (s->next)
2465 struct glyph_string *next;
2467 for (next = s->next; next; next = next->next)
2468 if (next->hl != s->hl
2469 && next->x - next->left_overhang < s->x + s->width)
2471 /* As next will be drawn while clipped to its own area,
2472 we must draw the left_overhang part using s->hl now. */
2473 enum draw_glyphs_face save = next->hl;
2475 next->hl = s->hl;
2476 x_set_glyph_string_gc (next);
2477 x_set_glyph_string_clipping_exactly (s, next);
2478 if (next->first_glyph->type == CHAR_GLYPH)
2479 x_draw_glyph_string_foreground (next);
2480 else
2481 x_draw_composite_glyph_string_foreground (next);
2482 w32_set_clip_rectangle (next->hdc, NULL);
2483 next->hl = save;
2484 next->num_clips = 0;
2489 /* Reset clipping. */
2490 w32_set_clip_rectangle (s->hdc, NULL);
2491 s->num_clips = 0;
2495 /* Shift display to make room for inserted glyphs. */
2497 void
2498 w32_shift_glyphs_for_insert (struct frame *f, int x, int y,
2499 int width, int height, int shift_by)
2501 HDC hdc;
2503 hdc = get_frame_dc (f);
2504 BitBlt (hdc, x + shift_by, y, width, height,
2505 hdc, x, y, SRCCOPY);
2507 release_frame_dc (f, hdc);
2511 /* Delete N glyphs at the nominal cursor position. Not implemented
2512 for X frames. */
2514 static void
2515 x_delete_glyphs (struct frame *f, register int n)
2517 if (! FRAME_W32_P (f))
2518 return;
2520 abort ();
2524 /* Clear entire frame. */
2526 static void
2527 x_clear_frame (struct frame *f)
2529 if (! FRAME_W32_P (f))
2530 return;
2532 /* Clearing the frame will erase any cursor, so mark them all as no
2533 longer visible. */
2534 mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2535 output_cursor.hpos = output_cursor.vpos = 0;
2536 output_cursor.x = -1;
2538 /* We don't set the output cursor here because there will always
2539 follow an explicit cursor_to. */
2540 BLOCK_INPUT;
2542 w32_clear_window (f);
2544 /* We have to clear the scroll bars, too. If we have changed
2545 colors or something like that, then they should be notified. */
2546 x_scroll_bar_clear (f);
2548 UNBLOCK_INPUT;
2552 /* Make audible bell. */
2554 static void
2555 w32_ring_bell (struct frame *f)
2557 BLOCK_INPUT;
2559 if (FRAME_W32_P (f) && visible_bell)
2561 int i;
2562 HWND hwnd = FRAME_W32_WINDOW (f);
2564 for (i = 0; i < 5; i++)
2566 FlashWindow (hwnd, TRUE);
2567 Sleep (10);
2569 FlashWindow (hwnd, FALSE);
2571 else
2572 w32_sys_ring_bell (f);
2574 UNBLOCK_INPUT;
2578 /* Specify how many text lines, from the top of the window,
2579 should be affected by insert-lines and delete-lines operations.
2580 This, and those operations, are used only within an update
2581 that is bounded by calls to x_update_begin and x_update_end. */
2583 static void
2584 w32_set_terminal_window (struct frame *f, int n)
2586 /* This function intentionally left blank. */
2590 /***********************************************************************
2591 Line Dance
2592 ***********************************************************************/
2594 /* Perform an insert-lines or delete-lines operation, inserting N
2595 lines or deleting -N lines at vertical position VPOS. */
2597 static void
2598 x_ins_del_lines (struct frame *f, int vpos, int n)
2600 if (! FRAME_W32_P (f))
2601 return;
2603 abort ();
2607 /* Scroll part of the display as described by RUN. */
2609 static void
2610 x_scroll_run (struct window *w, struct run *run)
2612 struct frame *f = XFRAME (w->frame);
2613 int x, y, width, height, from_y, to_y, bottom_y;
2614 HWND hwnd = FRAME_W32_WINDOW (f);
2615 HRGN expect_dirty;
2617 /* Get frame-relative bounding box of the text display area of W,
2618 without mode lines. Include in this box the left and right
2619 fringes of W. */
2620 window_box (w, -1, &x, &y, &width, &height);
2622 /* If the fringe is adjacent to the left (right) scroll bar of a
2623 leftmost (rightmost, respectively) window, then extend its
2624 background to the gap between the fringe and the bar. */
2625 if ((WINDOW_LEFTMOST_P (w)
2626 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
2627 || (WINDOW_RIGHTMOST_P (w)
2628 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
2630 int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
2632 if (sb_width > 0)
2634 int bar_area_x = WINDOW_SCROLL_BAR_AREA_X (w);
2635 int bar_area_width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
2636 * FRAME_COLUMN_WIDTH (f));
2638 if (bar_area_x + bar_area_width == x)
2640 x = bar_area_x + sb_width;
2641 width += bar_area_width - sb_width;
2643 else if (x + width == bar_area_x)
2644 width += bar_area_width - sb_width;
2648 from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2649 to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2650 bottom_y = y + height;
2652 if (to_y < from_y)
2654 /* Scrolling up. Make sure we don't copy part of the mode
2655 line at the bottom. */
2656 if (from_y + run->height > bottom_y)
2657 height = bottom_y - from_y;
2658 else
2659 height = run->height;
2660 expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
2662 else
2664 /* Scolling down. Make sure we don't copy over the mode line.
2665 at the bottom. */
2666 if (to_y + run->height > bottom_y)
2667 height = bottom_y - to_y;
2668 else
2669 height = run->height;
2670 expect_dirty = CreateRectRgn (x, y, x + width, to_y);
2673 BLOCK_INPUT;
2675 /* Cursor off. Will be switched on again in x_update_window_end. */
2676 updated_window = w;
2677 x_clear_cursor (w);
2680 RECT from;
2681 RECT to;
2682 HRGN dirty = CreateRectRgn (0, 0, 0, 0);
2683 HRGN combined = CreateRectRgn (0, 0, 0, 0);
2685 from.left = to.left = x;
2686 from.right = to.right = x + width;
2687 from.top = from_y;
2688 from.bottom = from_y + height;
2689 to.top = y;
2690 to.bottom = bottom_y;
2692 ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
2693 NULL, SW_INVALIDATE);
2695 /* Combine this with what we expect to be dirty. This covers the
2696 case where not all of the region we expect is actually dirty. */
2697 CombineRgn (combined, dirty, expect_dirty, RGN_OR);
2699 /* If the dirty region is not what we expected, redraw the entire frame. */
2700 if (!EqualRgn (combined, expect_dirty))
2701 SET_FRAME_GARBAGED (f);
2703 DeleteObject (dirty);
2704 DeleteObject (combined);
2707 UNBLOCK_INPUT;
2708 DeleteObject (expect_dirty);
2713 /***********************************************************************
2714 Exposure Events
2715 ***********************************************************************/
2717 static void
2718 frame_highlight (struct frame *f)
2720 x_update_cursor (f, 1);
2721 x_set_frame_alpha (f);
2724 static void
2725 frame_unhighlight (struct frame *f)
2727 x_update_cursor (f, 1);
2728 x_set_frame_alpha (f);
2731 /* The focus has changed. Update the frames as necessary to reflect
2732 the new situation. Note that we can't change the selected frame
2733 here, because the Lisp code we are interrupting might become confused.
2734 Each event gets marked with the frame in which it occurred, so the
2735 Lisp code can tell when the switch took place by examining the events. */
2737 static void
2738 x_new_focus_frame (struct w32_display_info *dpyinfo, struct frame *frame)
2740 struct frame *old_focus = dpyinfo->w32_focus_frame;
2742 if (frame != dpyinfo->w32_focus_frame)
2744 /* Set this before calling other routines, so that they see
2745 the correct value of w32_focus_frame. */
2746 dpyinfo->w32_focus_frame = frame;
2748 if (old_focus && old_focus->auto_lower)
2749 x_lower_frame (old_focus);
2751 if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
2752 pending_autoraise_frame = dpyinfo->w32_focus_frame;
2753 else
2754 pending_autoraise_frame = 0;
2757 x_frame_rehighlight (dpyinfo);
2761 /* Handle FocusIn and FocusOut state changes for FRAME.
2762 If FRAME has focus and there exists more than one frame, puts
2763 a FOCUS_IN_EVENT into *BUFP. */
2765 static void
2766 x_focus_changed (int type, int state, struct w32_display_info *dpyinfo,
2767 struct frame *frame, struct input_event *bufp)
2769 if (type == WM_SETFOCUS)
2771 if (dpyinfo->w32_focus_event_frame != frame)
2773 x_new_focus_frame (dpyinfo, frame);
2774 dpyinfo->w32_focus_event_frame = frame;
2776 /* Don't stop displaying the initial startup message
2777 for a switch-frame event we don't need. */
2778 if (NILP (Vterminal_frame)
2779 && CONSP (Vframe_list)
2780 && !NILP (XCDR (Vframe_list)))
2782 bufp->kind = FOCUS_IN_EVENT;
2783 XSETFRAME (bufp->frame_or_window, frame);
2787 frame->output_data.x->focus_state |= state;
2789 /* TODO: IME focus? */
2791 else if (type == WM_KILLFOCUS)
2793 frame->output_data.x->focus_state &= ~state;
2795 if (dpyinfo->w32_focus_event_frame == frame)
2797 dpyinfo->w32_focus_event_frame = 0;
2798 x_new_focus_frame (dpyinfo, 0);
2801 /* TODO: IME focus? */
2806 /* The focus may have changed. Figure out if it is a real focus change,
2807 by checking both FocusIn/Out and Enter/LeaveNotify events.
2809 Returns FOCUS_IN_EVENT event in *BUFP. */
2811 static void
2812 w32_detect_focus_change (struct w32_display_info *dpyinfo, W32Msg *event,
2813 struct input_event *bufp)
2815 struct frame *frame;
2817 frame = x_any_window_to_frame (dpyinfo, event->msg.hwnd);
2818 if (! frame)
2819 return;
2821 /* On w32, this is only called from focus events, so no switch needed. */
2822 x_focus_changed (event->msg.message,
2823 (event->msg.message == WM_KILLFOCUS ?
2824 FOCUS_IMPLICIT : FOCUS_EXPLICIT),
2825 dpyinfo, frame, bufp);
2829 /* Handle an event saying the mouse has moved out of an Emacs frame. */
2831 void
2832 x_mouse_leave (struct w32_display_info *dpyinfo)
2834 x_new_focus_frame (dpyinfo, dpyinfo->w32_focus_event_frame);
2837 /* The focus has changed, or we have redirected a frame's focus to
2838 another frame (this happens when a frame uses a surrogate
2839 mini-buffer frame). Shift the highlight as appropriate.
2841 The FRAME argument doesn't necessarily have anything to do with which
2842 frame is being highlighted or un-highlighted; we only use it to find
2843 the appropriate X display info. */
2845 static void
2846 w32_frame_rehighlight (struct frame *frame)
2848 if (! FRAME_W32_P (frame))
2849 return;
2850 x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
2853 static void
2854 x_frame_rehighlight (struct w32_display_info *dpyinfo)
2856 struct frame *old_highlight = dpyinfo->x_highlight_frame;
2858 if (dpyinfo->w32_focus_frame)
2860 dpyinfo->x_highlight_frame
2861 = ((FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
2862 ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
2863 : dpyinfo->w32_focus_frame);
2864 if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
2866 FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame) = Qnil;
2867 dpyinfo->x_highlight_frame = dpyinfo->w32_focus_frame;
2870 else
2871 dpyinfo->x_highlight_frame = 0;
2873 if (dpyinfo->x_highlight_frame != old_highlight)
2875 if (old_highlight)
2876 frame_unhighlight (old_highlight);
2877 if (dpyinfo->x_highlight_frame)
2878 frame_highlight (dpyinfo->x_highlight_frame);
2882 /* Keyboard processing - modifier keys, etc. */
2884 /* Convert a keysym to its name. */
2886 char *
2887 x_get_keysym_name (int keysym)
2889 /* Make static so we can always return it */
2890 static char value[100];
2892 BLOCK_INPUT;
2893 GetKeyNameText (keysym, value, 100);
2894 UNBLOCK_INPUT;
2896 return value;
2899 static int
2900 codepage_for_locale (LCID locale)
2902 char cp[20];
2904 if (GetLocaleInfo (locale, LOCALE_IDEFAULTANSICODEPAGE, cp, 20) > 0)
2905 return atoi (cp);
2906 else
2907 return CP_ACP;
2911 /* Mouse clicks and mouse movement. Rah. */
2913 /* Parse a button MESSAGE. The button index is returned in PBUTTON, and
2914 the state in PUP. XBUTTON provides extra information for extended mouse
2915 button messages. Returns FALSE if unable to parse the message. */
2916 BOOL
2917 parse_button (int message, int xbutton, int * pbutton, int * pup)
2919 int button = 0;
2920 int up = 0;
2922 switch (message)
2924 case WM_LBUTTONDOWN:
2925 button = 0;
2926 up = 0;
2927 break;
2928 case WM_LBUTTONUP:
2929 button = 0;
2930 up = 1;
2931 break;
2932 case WM_MBUTTONDOWN:
2933 if (NILP (Vw32_swap_mouse_buttons))
2934 button = 1;
2935 else
2936 button = 2;
2937 up = 0;
2938 break;
2939 case WM_MBUTTONUP:
2940 if (NILP (Vw32_swap_mouse_buttons))
2941 button = 1;
2942 else
2943 button = 2;
2944 up = 1;
2945 break;
2946 case WM_RBUTTONDOWN:
2947 if (NILP (Vw32_swap_mouse_buttons))
2948 button = 2;
2949 else
2950 button = 1;
2951 up = 0;
2952 break;
2953 case WM_RBUTTONUP:
2954 if (NILP (Vw32_swap_mouse_buttons))
2955 button = 2;
2956 else
2957 button = 1;
2958 up = 1;
2959 break;
2960 case WM_XBUTTONDOWN:
2961 button = xbutton + 2;
2962 up = 0;
2963 break;
2964 case WM_XBUTTONUP:
2965 button = xbutton + 2;
2966 up = 1;
2967 break;
2968 default:
2969 return (FALSE);
2972 if (pup) *pup = up;
2973 if (pbutton) *pbutton = button;
2975 return (TRUE);
2979 /* Prepare a mouse-event in *RESULT for placement in the input queue.
2981 If the event is a button press, then note that we have grabbed
2982 the mouse. */
2984 static Lisp_Object
2985 construct_mouse_click (struct input_event *result, W32Msg *msg, struct frame *f)
2987 int button;
2988 int up;
2990 parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
2991 &button, &up);
2993 /* Make the event type NO_EVENT; we'll change that when we decide
2994 otherwise. */
2995 result->kind = MOUSE_CLICK_EVENT;
2996 result->code = button;
2997 result->timestamp = msg->msg.time;
2998 result->modifiers = (msg->dwModifiers
2999 | (up
3000 ? up_modifier
3001 : down_modifier));
3003 XSETINT (result->x, LOWORD (msg->msg.lParam));
3004 XSETINT (result->y, HIWORD (msg->msg.lParam));
3005 XSETFRAME (result->frame_or_window, f);
3006 result->arg = Qnil;
3007 return Qnil;
3010 static Lisp_Object
3011 construct_mouse_wheel (struct input_event *result, W32Msg *msg, struct frame *f)
3013 POINT p;
3014 int delta;
3016 result->kind = msg->msg.message == WM_MOUSEHWHEEL ? HORIZ_WHEEL_EVENT
3017 : WHEEL_EVENT;
3018 result->code = 0;
3019 result->timestamp = msg->msg.time;
3021 /* A WHEEL_DELTA positive value indicates that the wheel was rotated
3022 forward, away from the user (up); a negative value indicates that
3023 the wheel was rotated backward, toward the user (down). */
3024 delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
3026 /* The up and down modifiers indicate if the wheel was rotated up or
3027 down based on WHEEL_DELTA value. */
3028 result->modifiers = (msg->dwModifiers
3029 | ((delta < 0 ) ? down_modifier : up_modifier));
3031 /* With multiple monitors, we can legitimately get negative
3032 coordinates, so cast to short to interpret them correctly. */
3033 p.x = (short) LOWORD (msg->msg.lParam);
3034 p.y = (short) HIWORD (msg->msg.lParam);
3035 ScreenToClient (msg->msg.hwnd, &p);
3036 XSETINT (result->x, p.x);
3037 XSETINT (result->y, p.y);
3038 XSETFRAME (result->frame_or_window, f);
3039 result->arg = Qnil;
3040 return Qnil;
3043 static Lisp_Object
3044 construct_drag_n_drop (struct input_event *result, W32Msg *msg, struct frame *f)
3046 Lisp_Object files;
3047 Lisp_Object frame;
3048 HDROP hdrop;
3049 POINT p;
3050 WORD num_files;
3051 char *name;
3052 int i, len;
3054 result->kind = DRAG_N_DROP_EVENT;
3055 result->code = 0;
3056 result->timestamp = msg->msg.time;
3057 result->modifiers = msg->dwModifiers;
3059 hdrop = (HDROP) msg->msg.wParam;
3060 DragQueryPoint (hdrop, &p);
3062 #if 0
3063 p.x = LOWORD (msg->msg.lParam);
3064 p.y = HIWORD (msg->msg.lParam);
3065 ScreenToClient (msg->msg.hwnd, &p);
3066 #endif
3068 XSETINT (result->x, p.x);
3069 XSETINT (result->y, p.y);
3071 num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
3072 files = Qnil;
3074 for (i = 0; i < num_files; i++)
3076 len = DragQueryFile (hdrop, i, NULL, 0);
3077 if (len <= 0)
3078 continue;
3079 name = alloca (len + 1);
3080 DragQueryFile (hdrop, i, name, len + 1);
3081 files = Fcons (DECODE_FILE (build_string (name)), files);
3084 DragFinish (hdrop);
3086 XSETFRAME (frame, f);
3087 result->frame_or_window = frame;
3088 result->arg = files;
3089 return Qnil;
3093 /* Function to report a mouse movement to the mainstream Emacs code.
3094 The input handler calls this.
3096 We have received a mouse movement event, which is given in *event.
3097 If the mouse is over a different glyph than it was last time, tell
3098 the mainstream emacs code by setting mouse_moved. If not, ask for
3099 another motion event, so we can check again the next time it moves. */
3101 static MSG last_mouse_motion_event;
3102 static Lisp_Object last_mouse_motion_frame;
3104 static int
3105 note_mouse_movement (FRAME_PTR frame, MSG *msg)
3107 int mouse_x = LOWORD (msg->lParam);
3108 int mouse_y = HIWORD (msg->lParam);
3110 last_mouse_movement_time = msg->time;
3111 memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
3112 XSETFRAME (last_mouse_motion_frame, frame);
3114 if (!FRAME_X_OUTPUT (frame))
3115 return 0;
3117 if (msg->hwnd != FRAME_W32_WINDOW (frame))
3119 frame->mouse_moved = 1;
3120 last_mouse_scroll_bar = Qnil;
3121 note_mouse_highlight (frame, -1, -1);
3122 last_mouse_glyph_frame = 0;
3123 return 1;
3126 /* Has the mouse moved off the glyph it was on at the last sighting? */
3127 if (frame != last_mouse_glyph_frame
3128 || mouse_x < last_mouse_glyph.left
3129 || mouse_x >= last_mouse_glyph.right
3130 || mouse_y < last_mouse_glyph.top
3131 || mouse_y >= last_mouse_glyph.bottom)
3133 frame->mouse_moved = 1;
3134 last_mouse_scroll_bar = Qnil;
3135 note_mouse_highlight (frame, mouse_x, mouse_y);
3136 /* Remember the mouse position here, as w32_mouse_position only
3137 gets called when mouse tracking is enabled but we also need
3138 to keep track of the mouse for help_echo and highlighting at
3139 other times. */
3140 remember_mouse_glyph (frame, mouse_x, mouse_y, &last_mouse_glyph);
3141 last_mouse_glyph_frame = frame;
3142 return 1;
3145 return 0;
3149 /************************************************************************
3150 Mouse Face
3151 ************************************************************************/
3153 static struct scroll_bar *x_window_to_scroll_bar (Window);
3154 static void x_scroll_bar_report_motion (FRAME_PTR *, Lisp_Object *,
3155 enum scroll_bar_part *,
3156 Lisp_Object *, Lisp_Object *,
3157 unsigned long *);
3158 static void x_check_fullscreen (struct frame *);
3160 static void
3161 redo_mouse_highlight (void)
3163 if (!NILP (last_mouse_motion_frame)
3164 && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame)))
3165 note_mouse_highlight (XFRAME (last_mouse_motion_frame),
3166 LOWORD (last_mouse_motion_event.lParam),
3167 HIWORD (last_mouse_motion_event.lParam));
3170 static void
3171 w32_define_cursor (Window window, Cursor cursor)
3173 PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
3175 /* Return the current position of the mouse.
3176 *fp should be a frame which indicates which display to ask about.
3178 If the mouse movement started in a scroll bar, set *fp, *bar_window,
3179 and *part to the frame, window, and scroll bar part that the mouse
3180 is over. Set *x and *y to the portion and whole of the mouse's
3181 position on the scroll bar.
3183 If the mouse movement started elsewhere, set *fp to the frame the
3184 mouse is on, *bar_window to nil, and *x and *y to the character cell
3185 the mouse is over.
3187 Set *time to the server time-stamp for the time at which the mouse
3188 was at this position.
3190 Don't store anything if we don't have a valid set of values to report.
3192 This clears the mouse_moved flag, so we can wait for the next mouse
3193 movement. */
3195 static void
3196 w32_mouse_position (FRAME_PTR *fp, int insist, Lisp_Object *bar_window,
3197 enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
3198 unsigned long *time)
3200 FRAME_PTR f1;
3202 BLOCK_INPUT;
3204 if (! NILP (last_mouse_scroll_bar) && insist == 0)
3205 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time);
3206 else
3208 POINT pt;
3210 Lisp_Object frame, tail;
3212 /* Clear the mouse-moved flag for every frame on this display. */
3213 FOR_EACH_FRAME (tail, frame)
3214 XFRAME (frame)->mouse_moved = 0;
3216 last_mouse_scroll_bar = Qnil;
3218 GetCursorPos (&pt);
3220 /* Now we have a position on the root; find the innermost window
3221 containing the pointer. */
3223 if (FRAME_W32_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame
3224 && FRAME_LIVE_P (last_mouse_frame))
3226 /* If mouse was grabbed on a frame, give coords for that frame
3227 even if the mouse is now outside it. */
3228 f1 = last_mouse_frame;
3230 else
3232 /* Is window under mouse one of our frames? */
3233 f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
3234 WindowFromPoint (pt));
3237 /* If not, is it one of our scroll bars? */
3238 if (! f1)
3240 struct scroll_bar *bar
3241 = x_window_to_scroll_bar (WindowFromPoint (pt));
3243 if (bar)
3245 f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3249 if (f1 == 0 && insist > 0)
3250 f1 = SELECTED_FRAME ();
3252 if (f1)
3254 /* Ok, we found a frame. Store all the values.
3255 last_mouse_glyph is a rectangle used to reduce the
3256 generation of mouse events. To not miss any motion
3257 events, we must divide the frame into rectangles of the
3258 size of the smallest character that could be displayed
3259 on it, i.e. into the same rectangles that matrices on
3260 the frame are divided into. */
3262 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3263 remember_mouse_glyph (f1, pt.x, pt.y, &last_mouse_glyph);
3264 last_mouse_glyph_frame = f1;
3266 *bar_window = Qnil;
3267 *part = 0;
3268 *fp = f1;
3269 XSETINT (*x, pt.x);
3270 XSETINT (*y, pt.y);
3271 *time = last_mouse_movement_time;
3276 UNBLOCK_INPUT;
3280 /***********************************************************************
3281 Tool-bars
3282 ***********************************************************************/
3284 /* Handle mouse button event on the tool-bar of frame F, at
3285 frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress
3286 or ButtonRelase. */
3288 static void
3289 w32_handle_tool_bar_click (struct frame *f, struct input_event *button_event)
3291 int x = XFASTINT (button_event->x);
3292 int y = XFASTINT (button_event->y);
3294 if (button_event->modifiers & down_modifier)
3295 handle_tool_bar_click (f, x, y, 1, 0);
3296 else
3297 handle_tool_bar_click (f, x, y, 0,
3298 button_event->modifiers & ~up_modifier);
3303 /***********************************************************************
3304 Scroll bars
3305 ***********************************************************************/
3307 /* Scroll bar support. */
3309 /* Given a window ID, find the struct scroll_bar which manages it.
3310 This can be called in GC, so we have to make sure to strip off mark
3311 bits. */
3313 static struct scroll_bar *
3314 x_window_to_scroll_bar (Window window_id)
3316 Lisp_Object tail;
3318 for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
3320 Lisp_Object frame, bar, condemned;
3322 frame = XCAR (tail);
3323 /* All elements of Vframe_list should be frames. */
3324 if (! FRAMEP (frame))
3325 abort ();
3327 /* Scan this frame's scroll bar list for a scroll bar with the
3328 right window ID. */
3329 condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
3330 for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
3331 /* This trick allows us to search both the ordinary and
3332 condemned scroll bar lists with one loop. */
3333 ! NILP (bar) || (bar = condemned,
3334 condemned = Qnil,
3335 ! NILP (bar));
3336 bar = XSCROLL_BAR (bar)->next)
3337 if (SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
3338 return XSCROLL_BAR (bar);
3341 return 0;
3346 /* Set the thumb size and position of scroll bar BAR. We are currently
3347 displaying PORTION out of a whole WHOLE, and our position POSITION. */
3349 static void
3350 w32_set_scroll_bar_thumb (struct scroll_bar *bar,
3351 int portion, int position, int whole)
3353 Window w = SCROLL_BAR_W32_WINDOW (bar);
3354 /* We use the whole scroll-bar height in the calculations below, to
3355 avoid strange effects like scrolling backwards when just clicking
3356 on the handle (without moving it). */
3357 double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height))
3358 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3359 int sb_page, sb_pos;
3360 BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
3361 SCROLLINFO si;
3363 /* We used to change the nPage setting while dragging the handle,
3364 but that had very strange effects (such as scrolling backwards
3365 while dragging downwards).
3367 Now, we don't change the nPage setting while dragging unless we
3368 get near to the end of the buffer, in which case we often have to
3369 resize the handle to "go all the way". */
3371 if (draggingp)
3373 int near_bottom_p;
3374 BLOCK_INPUT;
3375 si.cbSize = sizeof (si);
3376 si.fMask = SIF_POS | SIF_PAGE;
3377 GetScrollInfo (w, SB_CTL, &si);
3378 near_bottom_p = si.nPos + si.nPage >= range;
3379 UNBLOCK_INPUT;
3380 if (!near_bottom_p)
3381 return;
3384 if (whole)
3386 /* Position scroll bar at rock bottom if the bottom of the
3387 buffer is visible. This avoids shinking the thumb away
3388 to nothing if it is held at the bottom of the buffer. */
3389 if (position + portion >= whole && !draggingp)
3391 sb_page = range * (whole - position) / whole;
3392 sb_pos = range;
3394 else
3396 sb_pos = position * range / whole;
3397 sb_page = (min (portion, (whole - position)) * range) / whole;
3400 else
3402 sb_page = range;
3403 sb_pos = 0;
3406 sb_page = max (sb_page, VERTICAL_SCROLL_BAR_MIN_HANDLE);
3408 BLOCK_INPUT;
3410 si.cbSize = sizeof (si);
3411 si.fMask = SIF_PAGE | SIF_POS;
3412 si.nPage = sb_page;
3413 si.nPos = sb_pos;
3415 SetScrollInfo (w, SB_CTL, &si, TRUE);
3417 UNBLOCK_INPUT;
3421 /************************************************************************
3422 Scroll bars, general
3423 ************************************************************************/
3425 static HWND
3426 my_create_scrollbar (struct frame * f, struct scroll_bar * bar)
3428 return (HWND) SendMessage (FRAME_W32_WINDOW (f),
3429 WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
3430 (LPARAM) bar);
3433 /*#define ATTACH_THREADS*/
3435 static BOOL
3436 my_show_window (FRAME_PTR f, HWND hwnd, int how)
3438 #ifndef ATTACH_THREADS
3439 return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
3440 (WPARAM) hwnd, (LPARAM) how);
3441 #else
3442 return ShowWindow (hwnd, how);
3443 #endif
3446 static void
3447 my_set_window_pos (HWND hwnd, HWND hwndAfter,
3448 int x, int y, int cx, int cy, UINT flags)
3450 #ifndef ATTACH_THREADS
3451 WINDOWPOS pos;
3452 pos.hwndInsertAfter = hwndAfter;
3453 pos.x = x;
3454 pos.y = y;
3455 pos.cx = cx;
3456 pos.cy = cy;
3457 pos.flags = flags;
3458 SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
3459 #else
3460 SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
3461 #endif
3464 #if 0
3465 static void
3466 my_set_focus (struct frame * f, HWND hwnd)
3468 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
3469 (WPARAM) hwnd, 0);
3471 #endif
3473 static void
3474 my_set_foreground_window (HWND hwnd)
3476 SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
3480 static void
3481 my_destroy_window (struct frame * f, HWND hwnd)
3483 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
3484 (WPARAM) hwnd, 0);
3487 /* Create a scroll bar and return the scroll bar vector for it. W is
3488 the Emacs window on which to create the scroll bar. TOP, LEFT,
3489 WIDTH and HEIGHT are.the pixel coordinates and dimensions of the
3490 scroll bar. */
3492 static struct scroll_bar *
3493 x_scroll_bar_create (struct window *w, int top, int left, int width, int height)
3495 struct frame *f = XFRAME (WINDOW_FRAME (w));
3496 HWND hwnd;
3497 SCROLLINFO si;
3498 struct scroll_bar *bar
3499 = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
3501 BLOCK_INPUT;
3503 XSETWINDOW (bar->window, w);
3504 XSETINT (bar->top, top);
3505 XSETINT (bar->left, left);
3506 XSETINT (bar->width, width);
3507 XSETINT (bar->height, height);
3508 XSETINT (bar->start, 0);
3509 XSETINT (bar->end, 0);
3510 bar->dragging = Qnil;
3511 bar->fringe_extended_p = Qnil;
3513 /* Requires geometry to be set before call to create the real window */
3515 hwnd = my_create_scrollbar (f, bar);
3517 si.cbSize = sizeof (si);
3518 si.fMask = SIF_ALL;
3519 si.nMin = 0;
3520 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3521 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3522 si.nPage = si.nMax;
3523 si.nPos = 0;
3525 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3527 SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
3529 /* Add bar to its frame's list of scroll bars. */
3530 bar->next = FRAME_SCROLL_BARS (f);
3531 bar->prev = Qnil;
3532 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3533 if (! NILP (bar->next))
3534 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3536 UNBLOCK_INPUT;
3538 return bar;
3542 /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
3543 nil. */
3545 static void
3546 x_scroll_bar_remove (struct scroll_bar *bar)
3548 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3550 BLOCK_INPUT;
3552 /* Destroy the window. */
3553 my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
3555 /* Disassociate this scroll bar from its window. */
3556 XWINDOW (bar->window)->vertical_scroll_bar = Qnil;
3558 UNBLOCK_INPUT;
3561 /* Set the handle of the vertical scroll bar for WINDOW to indicate
3562 that we are displaying PORTION characters out of a total of WHOLE
3563 characters, starting at POSITION. If WINDOW has no scroll bar,
3564 create one. */
3565 static void
3566 w32_set_vertical_scroll_bar (struct window *w,
3567 int portion, int whole, int position)
3569 struct frame *f = XFRAME (w->frame);
3570 struct scroll_bar *bar;
3571 int top, height, left, sb_left, width, sb_width;
3572 int window_y, window_height;
3573 int fringe_extended_p;
3575 /* Get window dimensions. */
3576 window_box (w, -1, 0, &window_y, 0, &window_height);
3577 top = window_y;
3578 width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f);
3579 height = window_height;
3581 /* Compute the left edge of the scroll bar area. */
3582 left = WINDOW_SCROLL_BAR_AREA_X (w);
3584 /* Compute the width of the scroll bar which might be less than
3585 the width of the area reserved for the scroll bar. */
3586 if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0)
3587 sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
3588 else
3589 sb_width = width;
3591 /* Compute the left edge of the scroll bar. */
3592 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
3593 sb_left = left + (WINDOW_RIGHTMOST_P (w) ? width - sb_width : 0);
3594 else
3595 sb_left = left + (WINDOW_LEFTMOST_P (w) ? 0 : width - sb_width);
3597 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
3598 fringe_extended_p = (WINDOW_LEFTMOST_P (w)
3599 && WINDOW_LEFT_FRINGE_WIDTH (w)
3600 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3601 || WINDOW_LEFT_MARGIN_COLS (w) == 0));
3602 else
3603 fringe_extended_p = (WINDOW_RIGHTMOST_P (w)
3604 && WINDOW_RIGHT_FRINGE_WIDTH (w)
3605 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3606 || WINDOW_RIGHT_MARGIN_COLS (w) == 0));
3608 /* Does the scroll bar exist yet? */
3609 if (NILP (w->vertical_scroll_bar))
3611 HDC hdc;
3612 BLOCK_INPUT;
3613 if (width > 0 && height > 0)
3615 hdc = get_frame_dc (f);
3616 if (fringe_extended_p)
3617 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3618 else
3619 w32_clear_area (f, hdc, left, top, width, height);
3620 release_frame_dc (f, hdc);
3622 UNBLOCK_INPUT;
3624 bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
3626 else
3628 /* It may just need to be moved and resized. */
3629 HWND hwnd;
3631 bar = XSCROLL_BAR (w->vertical_scroll_bar);
3632 hwnd = SCROLL_BAR_W32_WINDOW (bar);
3634 /* If already correctly positioned, do nothing. */
3635 if ( XINT (bar->left) == sb_left
3636 && XINT (bar->top) == top
3637 && XINT (bar->width) == sb_width
3638 && XINT (bar->height) == height
3639 && !NILP (bar->fringe_extended_p) == fringe_extended_p )
3641 /* Redraw after clear_frame. */
3642 if (!my_show_window (f, hwnd, SW_NORMAL))
3643 InvalidateRect (hwnd, NULL, FALSE);
3645 else
3647 HDC hdc;
3648 SCROLLINFO si;
3650 BLOCK_INPUT;
3651 if (width && height)
3653 hdc = get_frame_dc (f);
3654 /* Since Windows scroll bars are smaller than the space reserved
3655 for them on the frame, we have to clear "under" them. */
3656 if (fringe_extended_p)
3657 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3658 else
3659 w32_clear_area (f, hdc, left, top, width, height);
3660 release_frame_dc (f, hdc);
3662 /* Make sure scroll bar is "visible" before moving, to ensure the
3663 area of the parent window now exposed will be refreshed. */
3664 my_show_window (f, hwnd, SW_HIDE);
3665 MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
3666 top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
3667 max (height, 1), TRUE);
3669 si.cbSize = sizeof (si);
3670 si.fMask = SIF_RANGE;
3671 si.nMin = 0;
3672 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3673 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3675 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3677 my_show_window (f, hwnd, SW_NORMAL);
3678 /* InvalidateRect (w, NULL, FALSE); */
3680 /* Remember new settings. */
3681 XSETINT (bar->left, sb_left);
3682 XSETINT (bar->top, top);
3683 XSETINT (bar->width, sb_width);
3684 XSETINT (bar->height, height);
3686 UNBLOCK_INPUT;
3689 bar->fringe_extended_p = fringe_extended_p ? Qt : Qnil;
3691 w32_set_scroll_bar_thumb (bar, portion, position, whole);
3693 XSETVECTOR (w->vertical_scroll_bar, bar);
3697 /* The following three hooks are used when we're doing a thorough
3698 redisplay of the frame. We don't explicitly know which scroll bars
3699 are going to be deleted, because keeping track of when windows go
3700 away is a real pain - "Can you say set-window-configuration, boys
3701 and girls?" Instead, we just assert at the beginning of redisplay
3702 that *all* scroll bars are to be removed, and then save a scroll bar
3703 from the fiery pit when we actually redisplay its window. */
3705 /* Arrange for all scroll bars on FRAME to be removed at the next call
3706 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
3707 `*redeem_scroll_bar_hook' is applied to its window before the judgment. */
3709 static void
3710 w32_condemn_scroll_bars (FRAME_PTR frame)
3712 /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
3713 while (! NILP (FRAME_SCROLL_BARS (frame)))
3715 Lisp_Object bar;
3716 bar = FRAME_SCROLL_BARS (frame);
3717 FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next;
3718 XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
3719 XSCROLL_BAR (bar)->prev = Qnil;
3720 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
3721 XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
3722 FRAME_CONDEMNED_SCROLL_BARS (frame) = bar;
3727 /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
3728 Note that WINDOW isn't necessarily condemned at all. */
3730 static void
3731 w32_redeem_scroll_bar (struct window *window)
3733 struct scroll_bar *bar;
3734 struct frame *f;
3736 /* We can't redeem this window's scroll bar if it doesn't have one. */
3737 if (NILP (window->vertical_scroll_bar))
3738 abort ();
3740 bar = XSCROLL_BAR (window->vertical_scroll_bar);
3742 /* Unlink it from the condemned list. */
3743 f = XFRAME (WINDOW_FRAME (window));
3744 if (NILP (bar->prev))
3746 /* If the prev pointer is nil, it must be the first in one of
3747 the lists. */
3748 if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
3749 /* It's not condemned. Everything's fine. */
3750 return;
3751 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
3752 window->vertical_scroll_bar))
3753 FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next;
3754 else
3755 /* If its prev pointer is nil, it must be at the front of
3756 one or the other! */
3757 abort ();
3759 else
3760 XSCROLL_BAR (bar->prev)->next = bar->next;
3762 if (! NILP (bar->next))
3763 XSCROLL_BAR (bar->next)->prev = bar->prev;
3765 bar->next = FRAME_SCROLL_BARS (f);
3766 bar->prev = Qnil;
3767 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3768 if (! NILP (bar->next))
3769 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3772 /* Remove all scroll bars on FRAME that haven't been saved since the
3773 last call to `*condemn_scroll_bars_hook'. */
3775 static void
3776 w32_judge_scroll_bars (FRAME_PTR f)
3778 Lisp_Object bar, next;
3780 bar = FRAME_CONDEMNED_SCROLL_BARS (f);
3782 /* Clear out the condemned list now so we won't try to process any
3783 more events on the hapless scroll bars. */
3784 FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil;
3786 for (; ! NILP (bar); bar = next)
3788 struct scroll_bar *b = XSCROLL_BAR (bar);
3790 x_scroll_bar_remove (b);
3792 next = b->next;
3793 b->next = b->prev = Qnil;
3796 /* Now there should be no references to the condemned scroll bars,
3797 and they should get garbage-collected. */
3800 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
3801 is set to something other than NO_EVENT, it is enqueued.
3803 This may be called from a signal handler, so we have to ignore GC
3804 mark bits. */
3806 static int
3807 w32_scroll_bar_handle_click (struct scroll_bar *bar, W32Msg *msg,
3808 struct input_event *emacs_event)
3810 if (! WINDOWP (bar->window))
3811 abort ();
3813 emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
3814 emacs_event->code = 0;
3815 /* not really meaningful to distinguish up/down */
3816 emacs_event->modifiers = msg->dwModifiers;
3817 emacs_event->frame_or_window = bar->window;
3818 emacs_event->arg = Qnil;
3819 emacs_event->timestamp = msg->msg.time;
3822 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3823 int y;
3824 int dragging = !NILP (bar->dragging);
3825 SCROLLINFO si;
3827 si.cbSize = sizeof (si);
3828 si.fMask = SIF_POS;
3830 GetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
3831 y = si.nPos;
3833 bar->dragging = Qnil;
3836 last_mouse_scroll_bar_pos = msg->msg.wParam;
3838 switch (LOWORD (msg->msg.wParam))
3840 case SB_LINEDOWN:
3841 emacs_event->part = scroll_bar_down_arrow;
3842 break;
3843 case SB_LINEUP:
3844 emacs_event->part = scroll_bar_up_arrow;
3845 break;
3846 case SB_PAGEUP:
3847 emacs_event->part = scroll_bar_above_handle;
3848 break;
3849 case SB_PAGEDOWN:
3850 emacs_event->part = scroll_bar_below_handle;
3851 break;
3852 case SB_TOP:
3853 emacs_event->part = scroll_bar_handle;
3854 y = 0;
3855 break;
3856 case SB_BOTTOM:
3857 emacs_event->part = scroll_bar_handle;
3858 y = top_range;
3859 break;
3860 case SB_THUMBTRACK:
3861 case SB_THUMBPOSITION:
3862 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3863 y = HIWORD (msg->msg.wParam);
3864 bar->dragging = Qt;
3865 emacs_event->part = scroll_bar_handle;
3867 /* "Silently" update current position. */
3869 SCROLLINFO si;
3871 si.cbSize = sizeof (si);
3872 si.fMask = SIF_POS;
3873 si.nPos = y;
3874 /* Remember apparent position (we actually lag behind the real
3875 position, so don't set that directly. */
3876 last_scroll_bar_drag_pos = y;
3878 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
3880 break;
3881 case SB_ENDSCROLL:
3882 /* If this is the end of a drag sequence, then reset the scroll
3883 handle size to normal and do a final redraw. Otherwise do
3884 nothing. */
3885 if (dragging)
3887 SCROLLINFO si;
3888 int start = XINT (bar->start);
3889 int end = XINT (bar->end);
3891 si.cbSize = sizeof (si);
3892 si.fMask = SIF_PAGE | SIF_POS;
3893 si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3894 si.nPos = last_scroll_bar_drag_pos;
3895 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
3897 /* fall through */
3898 default:
3899 emacs_event->kind = NO_EVENT;
3900 return FALSE;
3903 XSETINT (emacs_event->x, y);
3904 XSETINT (emacs_event->y, top_range);
3906 return TRUE;
3910 /* Return information to the user about the current position of the mouse
3911 on the scroll bar. */
3913 static void
3914 x_scroll_bar_report_motion (FRAME_PTR *fp, Lisp_Object *bar_window,
3915 enum scroll_bar_part *part,
3916 Lisp_Object *x, Lisp_Object *y,
3917 unsigned long *time)
3919 struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
3920 Window w = SCROLL_BAR_W32_WINDOW (bar);
3921 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3922 int pos;
3923 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3924 SCROLLINFO si;
3926 BLOCK_INPUT;
3928 *fp = f;
3929 *bar_window = bar->window;
3931 si.cbSize = sizeof (si);
3932 si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
3934 GetScrollInfo (w, SB_CTL, &si);
3935 pos = si.nPos;
3936 top_range = si.nMax - si.nPage + 1;
3938 switch (LOWORD (last_mouse_scroll_bar_pos))
3940 case SB_THUMBPOSITION:
3941 case SB_THUMBTRACK:
3942 *part = scroll_bar_handle;
3943 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3944 pos = HIWORD (last_mouse_scroll_bar_pos);
3945 break;
3946 case SB_LINEDOWN:
3947 *part = scroll_bar_handle;
3948 pos++;
3949 break;
3950 default:
3951 *part = scroll_bar_handle;
3952 break;
3955 XSETINT (*x, pos);
3956 XSETINT (*y, top_range);
3958 f->mouse_moved = 0;
3959 last_mouse_scroll_bar = Qnil;
3961 *time = last_mouse_movement_time;
3963 UNBLOCK_INPUT;
3967 /* The screen has been cleared so we may have changed foreground or
3968 background colors, and the scroll bars may need to be redrawn.
3969 Clear out the scroll bars, and ask for expose events, so we can
3970 redraw them. */
3972 void
3973 x_scroll_bar_clear (FRAME_PTR f)
3975 Lisp_Object bar;
3977 /* We can have scroll bars even if this is 0,
3978 if we just turned off scroll bar mode.
3979 But in that case we should not clear them. */
3980 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
3981 for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
3982 bar = XSCROLL_BAR (bar)->next)
3984 HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
3985 HDC hdc = GetDC (window);
3986 RECT rect;
3988 /* Hide scroll bar until ready to repaint. x_scroll_bar_move
3989 arranges to refresh the scroll bar if hidden. */
3990 my_show_window (f, window, SW_HIDE);
3992 GetClientRect (window, &rect);
3993 select_palette (f, hdc);
3994 w32_clear_rect (f, hdc, &rect);
3995 deselect_palette (f, hdc);
3997 ReleaseDC (window, hdc);
4002 /* The main W32 event-reading loop - w32_read_socket. */
4004 /* Record the last 100 characters stored
4005 to help debug the loss-of-chars-during-GC problem. */
4007 static int temp_index;
4008 static short temp_buffer[100];
4010 /* Temporarily store lead byte of DBCS input sequences. */
4011 static char dbcs_lead = 0;
4013 /* Read events coming from the W32 shell.
4014 This routine is called by the SIGIO handler.
4015 We return as soon as there are no more events to be read.
4017 We return the number of characters stored into the buffer,
4018 thus pretending to be `read'.
4020 EXPECTED is nonzero if the caller knows input is available.
4022 Some of these messages are reposted back to the message queue since the
4023 system calls the windows proc directly in a context where we cannot return
4024 the data nor can we guarantee the state we are in. So if we dispatch them
4025 we will get into an infinite loop. To prevent this from ever happening we
4026 will set a variable to indicate we are in the read_socket call and indicate
4027 which message we are processing since the windows proc gets called
4028 recursively with different messages by the system.
4031 static int
4032 w32_read_socket (struct terminal *terminal, int expected,
4033 struct input_event *hold_quit)
4035 int count = 0;
4036 int check_visibility = 0;
4037 W32Msg msg;
4038 struct frame *f;
4039 struct w32_display_info *dpyinfo = &one_w32_display_info;
4040 Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
4042 if (interrupt_input_blocked)
4044 interrupt_input_pending = 1;
4045 return -1;
4048 interrupt_input_pending = 0;
4049 BLOCK_INPUT;
4051 /* So people can tell when we have read the available input. */
4052 input_signal_count++;
4054 /* TODO: ghostscript integration. */
4055 while (get_next_msg (&msg, FALSE))
4057 struct input_event inev;
4058 int do_help = 0;
4060 EVENT_INIT (inev);
4061 inev.kind = NO_EVENT;
4062 inev.arg = Qnil;
4064 switch (msg.msg.message)
4066 case WM_EMACS_PAINT:
4067 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4069 if (f)
4071 if (msg.rect.right == msg.rect.left ||
4072 msg.rect.bottom == msg.rect.top)
4074 /* We may get paint messages even though the client
4075 area is clipped - these are not expose events. */
4076 DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
4077 SDATA (f->name)));
4079 else if (f->async_visible != 1)
4081 /* Definitely not obscured, so mark as visible. */
4082 f->async_visible = 1;
4083 f->async_iconified = 0;
4084 SET_FRAME_GARBAGED (f);
4085 DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
4086 SDATA (f->name)));
4088 /* WM_PAINT serves as MapNotify as well, so report
4089 visibility changes properly. */
4090 if (f->iconified)
4092 inev.kind = DEICONIFY_EVENT;
4093 XSETFRAME (inev.frame_or_window, f);
4095 else if (! NILP (Vframe_list)
4096 && ! NILP (XCDR (Vframe_list)))
4097 /* Force a redisplay sooner or later to update the
4098 frame titles in case this is the second frame. */
4099 record_asynch_buffer_change ();
4101 else
4103 HDC hdc = get_frame_dc (f);
4105 /* Erase background again for safety. */
4106 w32_clear_rect (f, hdc, &msg.rect);
4107 release_frame_dc (f, hdc);
4108 expose_frame (f,
4109 msg.rect.left,
4110 msg.rect.top,
4111 msg.rect.right - msg.rect.left,
4112 msg.rect.bottom - msg.rect.top);
4115 break;
4117 case WM_INPUTLANGCHANGE:
4118 /* Generate a language change event. */
4119 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4121 /* lParam contains the input lang ID. Use it to update our
4122 record of the keyboard codepage. */
4123 keyboard_codepage = codepage_for_locale ((LCID)(msg.msg.lParam
4124 & 0xffff));
4126 if (f)
4128 inev.kind = LANGUAGE_CHANGE_EVENT;
4129 XSETFRAME (inev.frame_or_window, f);
4130 inev.code = msg.msg.wParam;
4131 inev.modifiers = msg.msg.lParam & 0xffff;
4133 break;
4135 case WM_KEYDOWN:
4136 case WM_SYSKEYDOWN:
4137 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4139 if (f && !f->iconified)
4141 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4142 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4144 clear_mouse_face (hlinfo);
4145 hlinfo->mouse_face_hidden = 1;
4148 if (temp_index == sizeof temp_buffer / sizeof (short))
4149 temp_index = 0;
4150 temp_buffer[temp_index++] = msg.msg.wParam;
4151 inev.kind = NON_ASCII_KEYSTROKE_EVENT;
4152 inev.code = msg.msg.wParam;
4153 inev.modifiers = msg.dwModifiers;
4154 XSETFRAME (inev.frame_or_window, f);
4155 inev.timestamp = msg.msg.time;
4157 break;
4159 case WM_UNICHAR:
4160 case WM_SYSCHAR:
4161 case WM_CHAR:
4162 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4164 if (f && !f->iconified)
4166 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4167 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4169 clear_mouse_face (hlinfo);
4170 hlinfo->mouse_face_hidden = 1;
4173 if (temp_index == sizeof temp_buffer / sizeof (short))
4174 temp_index = 0;
4175 temp_buffer[temp_index++] = msg.msg.wParam;
4177 inev.modifiers = msg.dwModifiers;
4178 XSETFRAME (inev.frame_or_window, f);
4179 inev.timestamp = msg.msg.time;
4181 if (msg.msg.message == WM_UNICHAR)
4183 inev.code = msg.msg.wParam;
4185 else if (msg.msg.wParam < 256)
4187 wchar_t code;
4188 char dbcs[2];
4189 dbcs[0] = 0;
4190 dbcs[1] = (char) msg.msg.wParam;
4192 if (dbcs_lead)
4194 dbcs[0] = dbcs_lead;
4195 dbcs_lead = 0;
4196 if (!MultiByteToWideChar (keyboard_codepage, 0,
4197 dbcs, 2, &code, 1))
4199 /* Garbage */
4200 DebPrint (("Invalid DBCS sequence: %d %d\n",
4201 dbcs[0], dbcs[1]));
4202 inev.kind = NO_EVENT;
4203 break;
4206 else if (IsDBCSLeadByteEx (keyboard_codepage,
4207 (BYTE) msg.msg.wParam))
4209 dbcs_lead = (char) msg.msg.wParam;
4210 inev.kind = NO_EVENT;
4211 break;
4213 else
4215 if (!MultiByteToWideChar (keyboard_codepage, 0,
4216 &dbcs[1], 1, &code, 1))
4218 /* What to do with garbage? */
4219 DebPrint (("Invalid character: %d\n", dbcs[1]));
4220 inev.kind = NO_EVENT;
4221 break;
4224 inev.code = code;
4226 else
4228 /* Windows shouldn't generate WM_CHAR events above 0xFF
4229 in non-Unicode message handlers. */
4230 DebPrint (("Non-byte WM_CHAR: %d\n", msg.msg.wParam));
4231 inev.kind = NO_EVENT;
4232 break;
4234 inev.kind = inev.code < 128 ? ASCII_KEYSTROKE_EVENT
4235 : MULTIBYTE_CHAR_KEYSTROKE_EVENT;
4237 break;
4239 case WM_APPCOMMAND:
4240 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4242 if (f && !f->iconified)
4244 if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4245 && !EQ (f->tool_bar_window, hlinfo->mouse_face_window))
4247 clear_mouse_face (hlinfo);
4248 hlinfo->mouse_face_hidden = 1;
4251 if (temp_index == sizeof temp_buffer / sizeof (short))
4252 temp_index = 0;
4253 temp_buffer[temp_index++] = msg.msg.wParam;
4254 inev.kind = MULTIMEDIA_KEY_EVENT;
4255 inev.code = GET_APPCOMMAND_LPARAM (msg.msg.lParam);
4256 inev.modifiers = msg.dwModifiers;
4257 XSETFRAME (inev.frame_or_window, f);
4258 inev.timestamp = msg.msg.time;
4260 break;
4262 case WM_MOUSEMOVE:
4263 /* Ignore non-movement. */
4265 int x = LOWORD (msg.msg.lParam);
4266 int y = HIWORD (msg.msg.lParam);
4267 if (x == last_mousemove_x && y == last_mousemove_y)
4268 break;
4269 last_mousemove_x = x;
4270 last_mousemove_y = y;
4273 previous_help_echo_string = help_echo_string;
4274 help_echo_string = Qnil;
4276 if (dpyinfo->grabbed && last_mouse_frame
4277 && FRAME_LIVE_P (last_mouse_frame))
4278 f = last_mouse_frame;
4279 else
4280 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4282 if (hlinfo->mouse_face_hidden)
4284 hlinfo->mouse_face_hidden = 0;
4285 clear_mouse_face (hlinfo);
4288 if (f)
4290 /* Generate SELECT_WINDOW_EVENTs when needed. */
4291 if (!NILP (Vmouse_autoselect_window))
4293 Lisp_Object window;
4294 int x = LOWORD (msg.msg.lParam);
4295 int y = HIWORD (msg.msg.lParam);
4297 window = window_from_coordinates (f, x, y, 0, 0);
4299 /* Window will be selected only when it is not
4300 selected now and last mouse movement event was
4301 not in it. Minibuffer window will be selected
4302 only when it is active. */
4303 if (WINDOWP (window)
4304 && !EQ (window, last_window)
4305 && !EQ (window, selected_window)
4306 /* For click-to-focus window managers
4307 create event iff we don't leave the
4308 selected frame. */
4309 && (focus_follows_mouse
4310 || (EQ (XWINDOW (window)->frame,
4311 XWINDOW (selected_window)->frame))))
4313 inev.kind = SELECT_WINDOW_EVENT;
4314 inev.frame_or_window = window;
4317 last_window = window;
4319 if (!note_mouse_movement (f, &msg.msg))
4320 help_echo_string = previous_help_echo_string;
4322 else
4324 /* If we move outside the frame, then we're
4325 certainly no longer on any text in the frame. */
4326 clear_mouse_face (hlinfo);
4329 /* If the contents of the global variable help_echo_string
4330 has changed, generate a HELP_EVENT. */
4331 #if 0 /* The below is an invalid comparison when USE_LISP_UNION_TYPE.
4332 But it was originally changed to this to fix a bug, so I have
4333 not removed it completely in case the bug is still there. */
4334 if (help_echo_string != previous_help_echo_string ||
4335 (!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
4336 #else /* This is what xterm.c does. */
4337 if (!NILP (help_echo_string)
4338 || !NILP (previous_help_echo_string))
4339 do_help = 1;
4340 #endif
4341 break;
4343 case WM_LBUTTONDOWN:
4344 case WM_LBUTTONUP:
4345 case WM_MBUTTONDOWN:
4346 case WM_MBUTTONUP:
4347 case WM_RBUTTONDOWN:
4348 case WM_RBUTTONUP:
4349 case WM_XBUTTONDOWN:
4350 case WM_XBUTTONUP:
4352 /* If we decide we want to generate an event to be seen
4353 by the rest of Emacs, we put it here. */
4354 int tool_bar_p = 0;
4355 int button;
4356 int up;
4358 if (dpyinfo->grabbed && last_mouse_frame
4359 && FRAME_LIVE_P (last_mouse_frame))
4360 f = last_mouse_frame;
4361 else
4362 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4364 if (f)
4366 construct_mouse_click (&inev, &msg, f);
4368 /* Is this in the tool-bar? */
4369 if (WINDOWP (f->tool_bar_window)
4370 && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
4372 Lisp_Object window;
4373 int x = XFASTINT (inev.x);
4374 int y = XFASTINT (inev.y);
4376 window = window_from_coordinates (f, x, y, 0, 1);
4378 if (EQ (window, f->tool_bar_window))
4380 w32_handle_tool_bar_click (f, &inev);
4381 tool_bar_p = 1;
4385 if (tool_bar_p
4386 || (dpyinfo->w32_focus_frame
4387 && f != dpyinfo->w32_focus_frame))
4388 inev.kind = NO_EVENT;
4391 parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
4392 &button, &up);
4394 if (up)
4396 dpyinfo->grabbed &= ~ (1 << button);
4398 else
4400 dpyinfo->grabbed |= (1 << button);
4401 last_mouse_frame = f;
4402 /* Ignore any mouse motion that happened
4403 before this event; any subsequent mouse-movement
4404 Emacs events should reflect only motion after
4405 the ButtonPress. */
4406 if (f != 0)
4407 f->mouse_moved = 0;
4409 if (!tool_bar_p)
4410 last_tool_bar_item = -1;
4412 break;
4415 case WM_MOUSEWHEEL:
4416 case WM_MOUSEHWHEEL:
4418 if (dpyinfo->grabbed && last_mouse_frame
4419 && FRAME_LIVE_P (last_mouse_frame))
4420 f = last_mouse_frame;
4421 else
4422 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4424 if (f)
4427 if (!dpyinfo->w32_focus_frame
4428 || f == dpyinfo->w32_focus_frame)
4430 /* Emit an Emacs wheel-up/down event. */
4431 construct_mouse_wheel (&inev, &msg, f);
4433 /* Ignore any mouse motion that happened before this
4434 event; any subsequent mouse-movement Emacs events
4435 should reflect only motion after the
4436 ButtonPress. */
4437 f->mouse_moved = 0;
4439 last_mouse_frame = f;
4440 last_tool_bar_item = -1;
4442 break;
4444 case WM_DROPFILES:
4445 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4447 if (f)
4448 construct_drag_n_drop (&inev, &msg, f);
4449 break;
4451 case WM_VSCROLL:
4453 struct scroll_bar *bar =
4454 x_window_to_scroll_bar ((HWND)msg.msg.lParam);
4456 if (bar)
4457 w32_scroll_bar_handle_click (bar, &msg, &inev);
4458 break;
4461 case WM_WINDOWPOSCHANGED:
4462 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4463 if (f)
4465 if (f->want_fullscreen & FULLSCREEN_WAIT)
4466 f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH);
4468 check_visibility = 1;
4469 break;
4471 case WM_ACTIVATE:
4472 case WM_ACTIVATEAPP:
4473 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4474 if (f)
4475 x_check_fullscreen (f);
4476 check_visibility = 1;
4477 break;
4479 case WM_MOVE:
4480 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4482 if (f && !f->async_iconified)
4484 int x, y;
4486 x_real_positions (f, &x, &y);
4487 f->left_pos = x;
4488 f->top_pos = y;
4491 check_visibility = 1;
4492 break;
4494 case WM_SHOWWINDOW:
4495 /* wParam non-zero means Window is about to be shown, 0 means
4496 about to be hidden. */
4497 /* Redo the mouse-highlight after the tooltip has gone. */
4498 if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
4500 tip_window = NULL;
4501 redo_mouse_highlight ();
4504 /* If window has been obscured or exposed by another window
4505 being maximised or minimised/restored, then recheck
4506 visibility of all frames. Direct changes to our own
4507 windows get handled by WM_SIZE. */
4508 #if 0
4509 if (msg.msg.lParam != 0)
4510 check_visibility = 1;
4511 else
4513 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4514 f->async_visible = msg.msg.wParam;
4516 #endif
4518 check_visibility = 1;
4519 break;
4521 case WM_SIZE:
4522 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4524 /* Inform lisp of whether frame has been iconified etc. */
4525 if (f)
4527 switch (msg.msg.wParam)
4529 case SIZE_MINIMIZED:
4530 f->async_visible = 0;
4531 f->async_iconified = 1;
4533 inev.kind = ICONIFY_EVENT;
4534 XSETFRAME (inev.frame_or_window, f);
4535 break;
4537 case SIZE_MAXIMIZED:
4538 case SIZE_RESTORED:
4539 f->async_visible = 1;
4540 f->async_iconified = 0;
4542 /* wait_reading_process_output will notice this and update
4543 the frame's display structures. */
4544 SET_FRAME_GARBAGED (f);
4546 if (f->iconified)
4548 int x, y;
4550 /* Reset top and left positions of the Window
4551 here since Windows sends a WM_MOVE message
4552 BEFORE telling us the Window is minimized
4553 when the Window is iconified, with 3000,3000
4554 as the co-ords. */
4555 x_real_positions (f, &x, &y);
4556 f->left_pos = x;
4557 f->top_pos = y;
4559 inev.kind = DEICONIFY_EVENT;
4560 XSETFRAME (inev.frame_or_window, f);
4562 else if (! NILP (Vframe_list)
4563 && ! NILP (XCDR (Vframe_list)))
4564 /* Force a redisplay sooner or later
4565 to update the frame titles
4566 in case this is the second frame. */
4567 record_asynch_buffer_change ();
4568 break;
4572 if (f && !f->async_iconified && msg.msg.wParam != SIZE_MINIMIZED)
4574 RECT rect;
4575 int rows;
4576 int columns;
4577 int width;
4578 int height;
4580 GetClientRect (msg.msg.hwnd, &rect);
4582 height = rect.bottom - rect.top;
4583 width = rect.right - rect.left;
4585 rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
4586 columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
4588 /* TODO: Clip size to the screen dimensions. */
4590 /* Even if the number of character rows and columns has
4591 not changed, the font size may have changed, so we need
4592 to check the pixel dimensions as well. */
4594 if (columns != FRAME_COLS (f)
4595 || rows != FRAME_LINES (f)
4596 || width != FRAME_PIXEL_WIDTH (f)
4597 || height != FRAME_PIXEL_HEIGHT (f))
4599 change_frame_size (f, rows, columns, 0, 1, 0);
4600 SET_FRAME_GARBAGED (f);
4601 cancel_mouse_face (f);
4602 FRAME_PIXEL_WIDTH (f) = width;
4603 FRAME_PIXEL_HEIGHT (f) = height;
4604 f->win_gravity = NorthWestGravity;
4608 check_visibility = 1;
4609 break;
4611 case WM_MOUSELEAVE:
4612 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4613 if (f)
4615 if (f == hlinfo->mouse_face_mouse_frame)
4617 /* If we move outside the frame, then we're
4618 certainly no longer on any text in the frame. */
4619 clear_mouse_face (hlinfo);
4620 hlinfo->mouse_face_mouse_frame = 0;
4623 /* Generate a nil HELP_EVENT to cancel a help-echo.
4624 Do it only if there's something to cancel.
4625 Otherwise, the startup message is cleared when
4626 the mouse leaves the frame. */
4627 if (any_help_event_p)
4628 do_help = -1;
4630 break;
4632 case WM_SETFOCUS:
4633 w32_detect_focus_change (dpyinfo, &msg, &inev);
4635 dpyinfo->grabbed = 0;
4636 check_visibility = 1;
4637 break;
4639 case WM_KILLFOCUS:
4640 f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
4642 if (f)
4644 if (f == dpyinfo->w32_focus_event_frame)
4645 dpyinfo->w32_focus_event_frame = 0;
4647 if (f == dpyinfo->w32_focus_frame)
4648 x_new_focus_frame (dpyinfo, 0);
4650 if (f == hlinfo->mouse_face_mouse_frame)
4652 /* If we move outside the frame, then we're
4653 certainly no longer on any text in the frame. */
4654 clear_mouse_face (hlinfo);
4655 hlinfo->mouse_face_mouse_frame = 0;
4658 /* Generate a nil HELP_EVENT to cancel a help-echo.
4659 Do it only if there's something to cancel.
4660 Otherwise, the startup message is cleared when
4661 the mouse leaves the frame. */
4662 if (any_help_event_p)
4663 do_help = -1;
4666 dpyinfo->grabbed = 0;
4667 check_visibility = 1;
4668 break;
4670 case WM_CLOSE:
4671 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4673 if (f)
4675 inev.kind = DELETE_WINDOW_EVENT;
4676 XSETFRAME (inev.frame_or_window, f);
4678 break;
4680 case WM_INITMENU:
4681 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4683 if (f)
4685 inev.kind = MENU_BAR_ACTIVATE_EVENT;
4686 XSETFRAME (inev.frame_or_window, f);
4688 break;
4690 case WM_COMMAND:
4691 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4693 if (f)
4695 extern void menubar_selection_callback
4696 (FRAME_PTR f, void * client_data);
4697 menubar_selection_callback (f, (void *)msg.msg.wParam);
4700 check_visibility = 1;
4701 break;
4703 case WM_DISPLAYCHANGE:
4704 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4706 if (f)
4708 dpyinfo->n_cbits = msg.msg.wParam;
4709 DebPrint (("display change: %d %d\n",
4710 (short) LOWORD (msg.msg.lParam),
4711 (short) HIWORD (msg.msg.lParam)));
4714 check_visibility = 1;
4715 break;
4717 default:
4718 /* Check for messages registered at runtime. */
4719 if (msg.msg.message == msh_mousewheel)
4721 /* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
4722 msg.msg.message = WM_MOUSEWHEEL;
4723 prepend_msg (&msg);
4725 break;
4728 if (inev.kind != NO_EVENT)
4730 kbd_buffer_store_event_hold (&inev, hold_quit);
4731 count++;
4734 if (do_help
4735 && !(hold_quit && hold_quit->kind != NO_EVENT))
4737 Lisp_Object frame;
4739 if (f)
4740 XSETFRAME (frame, f);
4741 else
4742 frame = Qnil;
4744 if (do_help > 0)
4746 if (NILP (help_echo_string))
4748 help_echo_object = help_echo_window = Qnil;
4749 help_echo_pos = -1;
4752 any_help_event_p = 1;
4753 gen_help_event (help_echo_string, frame, help_echo_window,
4754 help_echo_object, help_echo_pos);
4756 else
4758 help_echo_string = Qnil;
4759 gen_help_event (Qnil, frame, Qnil, Qnil, 0);
4761 count++;
4765 /* If the focus was just given to an autoraising frame,
4766 raise it now. */
4767 /* ??? This ought to be able to handle more than one such frame. */
4768 if (pending_autoraise_frame)
4770 x_raise_frame (pending_autoraise_frame);
4771 pending_autoraise_frame = 0;
4774 /* Check which frames are still visisble, if we have enqueued any user
4775 events or been notified of events that may affect visibility. We
4776 do this here because there doesn't seem to be any direct
4777 notification from Windows that the visibility of a window has
4778 changed (at least, not in all cases). */
4779 if (count > 0 || check_visibility)
4781 Lisp_Object tail, frame;
4783 FOR_EACH_FRAME (tail, frame)
4785 FRAME_PTR f = XFRAME (frame);
4786 /* The tooltip has been drawn already. Avoid the
4787 SET_FRAME_GARBAGED below. */
4788 if (EQ (frame, tip_frame))
4789 continue;
4791 /* Check "visible" frames and mark each as obscured or not.
4792 Note that async_visible is nonzero for unobscured and
4793 obscured frames, but zero for hidden and iconified frames. */
4794 if (FRAME_W32_P (f) && f->async_visible)
4796 RECT clipbox;
4797 HDC hdc;
4799 enter_crit ();
4800 /* Query clipping rectangle for the entire window area
4801 (GetWindowDC), not just the client portion (GetDC).
4802 Otherwise, the scrollbars and menubar aren't counted as
4803 part of the visible area of the frame, and we may think
4804 the frame is obscured when really a scrollbar is still
4805 visible and gets WM_PAINT messages above. */
4806 hdc = GetWindowDC (FRAME_W32_WINDOW (f));
4807 GetClipBox (hdc, &clipbox);
4808 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
4809 leave_crit ();
4811 if (clipbox.right == clipbox.left
4812 || clipbox.bottom == clipbox.top)
4814 /* Frame has become completely obscured so mark as
4815 such (we do this by setting async_visible to 2 so
4816 that FRAME_VISIBLE_P is still true, but redisplay
4817 will skip it). */
4818 f->async_visible = 2;
4820 if (!FRAME_OBSCURED_P (f))
4822 DebPrint (("frame %p (%s) obscured\n", f,
4823 SDATA (f->name)));
4826 else
4828 /* Frame is not obscured, so mark it as such. */
4829 f->async_visible = 1;
4831 if (FRAME_OBSCURED_P (f))
4833 SET_FRAME_GARBAGED (f);
4834 DebPrint (("obscured frame %p (%s) found to be visible\n", f,
4835 SDATA (f->name)));
4837 /* Force a redisplay sooner or later. */
4838 record_asynch_buffer_change ();
4845 UNBLOCK_INPUT;
4846 return count;
4851 /***********************************************************************
4852 Text Cursor
4853 ***********************************************************************/
4855 /* Set clipping for output in glyph row ROW. W is the window in which
4856 we operate. GC is the graphics context to set clipping in.
4858 ROW may be a text row or, e.g., a mode line. Text rows must be
4859 clipped to the interior of the window dedicated to text display,
4860 mode lines must be clipped to the whole window. */
4862 static void
4863 w32_clip_to_row (struct window *w, struct glyph_row *row, int area, HDC hdc)
4865 RECT clip_rect;
4866 int window_x, window_y, window_width;
4868 window_box (w, area, &window_x, &window_y, &window_width, 0);
4870 clip_rect.left = window_x;
4871 clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
4872 clip_rect.top = max (clip_rect.top, window_y);
4873 clip_rect.right = clip_rect.left + window_width;
4874 clip_rect.bottom = clip_rect.top + row->visible_height;
4876 w32_set_clip_rectangle (hdc, &clip_rect);
4880 /* Draw a hollow box cursor on window W in glyph row ROW. */
4882 static void
4883 x_draw_hollow_cursor (struct window *w, struct glyph_row *row)
4885 struct frame *f = XFRAME (WINDOW_FRAME (w));
4886 HDC hdc;
4887 RECT rect;
4888 int left, top, h;
4889 struct glyph *cursor_glyph;
4890 HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
4892 /* Get the glyph the cursor is on. If we can't tell because
4893 the current matrix is invalid or such, give up. */
4894 cursor_glyph = get_phys_cursor_glyph (w);
4895 if (cursor_glyph == NULL)
4896 return;
4898 /* Compute frame-relative coordinates for phys cursor. */
4899 get_phys_cursor_geometry (w, row, cursor_glyph, &left, &top, &h);
4900 rect.left = left;
4901 rect.top = top;
4902 rect.bottom = rect.top + h;
4903 rect.right = rect.left + w->phys_cursor_width;
4905 hdc = get_frame_dc (f);
4906 /* Set clipping, draw the rectangle, and reset clipping again. */
4907 w32_clip_to_row (w, row, TEXT_AREA, hdc);
4908 FrameRect (hdc, &rect, hb);
4909 DeleteObject (hb);
4910 w32_set_clip_rectangle (hdc, NULL);
4911 release_frame_dc (f, hdc);
4915 /* Draw a bar cursor on window W in glyph row ROW.
4917 Implementation note: One would like to draw a bar cursor with an
4918 angle equal to the one given by the font property XA_ITALIC_ANGLE.
4919 Unfortunately, I didn't find a font yet that has this property set.
4920 --gerd. */
4922 static void
4923 x_draw_bar_cursor (struct window *w, struct glyph_row *row,
4924 int width, enum text_cursor_kinds kind)
4926 struct frame *f = XFRAME (w->frame);
4927 struct glyph *cursor_glyph;
4929 /* If cursor is out of bounds, don't draw garbage. This can happen
4930 in mini-buffer windows when switching between echo area glyphs
4931 and mini-buffer. */
4932 cursor_glyph = get_phys_cursor_glyph (w);
4933 if (cursor_glyph == NULL)
4934 return;
4936 /* If on an image, draw like a normal cursor. That's usually better
4937 visible than drawing a bar, esp. if the image is large so that
4938 the bar might not be in the window. */
4939 if (cursor_glyph->type == IMAGE_GLYPH)
4941 struct glyph_row *row;
4942 row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
4943 draw_phys_cursor_glyph (w, row, DRAW_CURSOR);
4945 else
4947 COLORREF cursor_color = f->output_data.w32->cursor_pixel;
4948 struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
4949 int x;
4950 HDC hdc;
4952 /* If the glyph's background equals the color we normally draw
4953 the bar cursor in, the bar cursor in its normal color is
4954 invisible. Use the glyph's foreground color instead in this
4955 case, on the assumption that the glyph's colors are chosen so
4956 that the glyph is legible. */
4957 if (face->background == cursor_color)
4958 cursor_color = face->foreground;
4960 x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
4962 hdc = get_frame_dc (f);
4963 w32_clip_to_row (w, row, TEXT_AREA, hdc);
4965 if (kind == BAR_CURSOR)
4967 if (width < 0)
4968 width = FRAME_CURSOR_WIDTH (f);
4969 width = min (cursor_glyph->pixel_width, width);
4971 w->phys_cursor_width = width;
4973 /* If the character under cursor is R2L, draw the bar cursor
4974 on the right of its glyph, rather than on the left. */
4975 if ((cursor_glyph->resolved_level & 1) != 0)
4976 x += cursor_glyph->pixel_width - width;
4978 w32_fill_area (f, hdc, cursor_color, x,
4979 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
4980 width, row->height);
4982 else
4984 int dummy_x, dummy_y, dummy_h;
4986 if (width < 0)
4987 width = row->height;
4989 width = min (row->height, width);
4991 get_phys_cursor_geometry (w, row, cursor_glyph, &dummy_x,
4992 &dummy_y, &dummy_h);
4993 w32_fill_area (f, hdc, cursor_color, x,
4994 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
4995 row->height - width),
4996 w->phys_cursor_width, width);
4999 w32_set_clip_rectangle (hdc, NULL);
5000 release_frame_dc (f, hdc);
5005 /* RIF: Define cursor CURSOR on frame F. */
5007 static void
5008 w32_define_frame_cursor (struct frame *f, Cursor cursor)
5010 w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
5014 /* RIF: Clear area on frame F. */
5016 static void
5017 w32_clear_frame_area (struct frame *f, int x, int y, int width, int height)
5019 HDC hdc;
5021 hdc = get_frame_dc (f);
5022 w32_clear_area (f, hdc, x, y, width, height);
5023 release_frame_dc (f, hdc);
5026 /* RIF: Draw or clear cursor on window W. */
5028 static void
5029 w32_draw_window_cursor (struct window *w, struct glyph_row *glyph_row,
5030 int x, int y, int cursor_type, int cursor_width,
5031 int on_p, int active_p)
5033 if (on_p)
5035 /* If the user wants to use the system caret, make sure our own
5036 cursor remains invisible. */
5037 if (w32_use_visible_system_caret)
5039 /* Call to erase_phys_cursor here seems to use the
5040 wrong values of w->phys_cursor, as they have been
5041 overwritten before this function was called. */
5042 if (w->phys_cursor_type != NO_CURSOR)
5043 erase_phys_cursor (w);
5045 cursor_type = w->phys_cursor_type = NO_CURSOR;
5046 w->phys_cursor_width = -1;
5048 else
5050 w->phys_cursor_type = cursor_type;
5053 w->phys_cursor_on_p = 1;
5055 /* If this is the active cursor, we need to track it with the
5056 system caret, so third party software like screen magnifiers
5057 and speech synthesizers can follow the cursor. */
5058 if (active_p)
5060 struct frame *f = XFRAME (WINDOW_FRAME (w));
5061 HWND hwnd = FRAME_W32_WINDOW (f);
5063 w32_system_caret_x
5064 = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5065 w32_system_caret_y
5066 = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
5067 + glyph_row->ascent - w->phys_cursor_ascent);
5069 PostMessage (hwnd, WM_IME_STARTCOMPOSITION, 0, 0);
5071 /* If the size of the active cursor changed, destroy the old
5072 system caret. */
5073 if (w32_system_caret_hwnd
5074 && (w32_system_caret_height != w->phys_cursor_height))
5075 PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
5077 w32_system_caret_height = w->phys_cursor_height;
5079 /* Move the system caret. */
5080 PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
5083 if (glyph_row->exact_window_width_line_p
5084 && (glyph_row->reversed_p
5085 ? (w->phys_cursor.hpos < 0)
5086 : (w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])))
5088 glyph_row->cursor_in_fringe_p = 1;
5089 draw_fringe_bitmap (w, glyph_row, glyph_row->reversed_p);
5090 return;
5093 switch (cursor_type)
5095 case HOLLOW_BOX_CURSOR:
5096 x_draw_hollow_cursor (w, glyph_row);
5097 break;
5099 case FILLED_BOX_CURSOR:
5100 draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
5101 break;
5103 case BAR_CURSOR:
5104 x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
5105 break;
5107 case HBAR_CURSOR:
5108 x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
5109 break;
5111 case NO_CURSOR:
5112 w->phys_cursor_width = 0;
5113 break;
5115 default:
5116 abort ();
5123 /* Icons. */
5126 x_bitmap_icon (struct frame *f, Lisp_Object icon)
5128 HANDLE main_icon;
5129 HANDLE small_icon = NULL;
5131 if (FRAME_W32_WINDOW (f) == 0)
5132 return 1;
5134 if (NILP (icon))
5135 main_icon = LoadIcon (hinst, EMACS_CLASS);
5136 else if (STRINGP (icon))
5138 /* Load the main icon from the named file. */
5139 main_icon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
5140 LR_DEFAULTSIZE | LR_LOADFROMFILE);
5141 /* Try to load a small icon to go with it. */
5142 small_icon = LoadImage (NULL, (LPCSTR) SDATA (icon), IMAGE_ICON,
5143 GetSystemMetrics (SM_CXSMICON),
5144 GetSystemMetrics (SM_CYSMICON),
5145 LR_LOADFROMFILE);
5147 else if (SYMBOLP (icon))
5149 LPCTSTR name;
5151 if (EQ (icon, intern ("application")))
5152 name = (LPCTSTR) IDI_APPLICATION;
5153 else if (EQ (icon, intern ("hand")))
5154 name = (LPCTSTR) IDI_HAND;
5155 else if (EQ (icon, intern ("question")))
5156 name = (LPCTSTR) IDI_QUESTION;
5157 else if (EQ (icon, intern ("exclamation")))
5158 name = (LPCTSTR) IDI_EXCLAMATION;
5159 else if (EQ (icon, intern ("asterisk")))
5160 name = (LPCTSTR) IDI_ASTERISK;
5161 else if (EQ (icon, intern ("winlogo")))
5162 name = (LPCTSTR) IDI_WINLOGO;
5163 else
5164 return 1;
5166 main_icon = LoadIcon (NULL, name);
5168 else
5169 return 1;
5171 if (main_icon == NULL)
5172 return 1;
5174 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
5175 (LPARAM) main_icon);
5177 /* If there is a small icon that goes with it, set that too. */
5178 if (small_icon)
5179 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_SMALL,
5180 (LPARAM) small_icon);
5182 return 0;
5186 /************************************************************************
5187 Handling X errors
5188 ************************************************************************/
5190 /* Display Error Handling functions not used on W32. Listing them here
5191 helps diff stay in step when comparing w32term.c with xterm.c.
5193 x_error_catcher (display, error)
5194 x_catch_errors (dpy)
5195 x_catch_errors_unwind (old_val)
5196 x_check_errors (dpy, format)
5197 x_fully_uncatch_errors ()
5198 x_catching_errors ()
5199 x_had_errors_p (dpy)
5200 x_clear_errors (dpy)
5201 x_uncatch_errors (dpy, count)
5202 x_trace_wire ()
5203 x_connection_signal (signalnum)
5204 x_connection_closed (dpy, error_message)
5205 x_error_quitter (display, error)
5206 x_error_handler (display, error)
5207 x_io_error_quitter (display)
5212 /* Changing the font of the frame. */
5214 Lisp_Object
5215 x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
5217 struct font *font = XFONT_OBJECT (font_object);
5219 if (fontset < 0)
5220 fontset = fontset_from_font (font_object);
5221 FRAME_FONTSET (f) = fontset;
5222 if (FRAME_FONT (f) == font)
5223 /* This font is already set in frame F. There's nothing more to
5224 do. */
5225 return font_object;
5227 FRAME_FONT (f) = font;
5228 FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
5229 FRAME_COLUMN_WIDTH (f) = font->average_width;
5230 FRAME_SPACE_WIDTH (f) = font->space_width;
5231 FRAME_LINE_HEIGHT (f) = font->height;
5233 compute_fringe_widths (f, 1);
5235 /* Compute the scroll bar width in character columns. */
5236 if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
5238 int wid = FRAME_COLUMN_WIDTH (f);
5239 FRAME_CONFIG_SCROLL_BAR_COLS (f)
5240 = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid - 1) / wid;
5242 else
5244 int wid = FRAME_COLUMN_WIDTH (f);
5245 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
5248 /* Now make the frame display the given font. */
5249 if (FRAME_X_WINDOW (f) != 0)
5251 /* Don't change the size of a tip frame; there's no point in
5252 doing it because it's done in Fx_show_tip, and it leads to
5253 problems because the tip frame has no widget. */
5254 if (NILP (tip_frame) || XFRAME (tip_frame) != f)
5255 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
5258 /* X version sets font of input methods here also. */
5260 return font_object;
5264 /***********************************************************************
5265 TODO: W32 Input Methods
5266 ***********************************************************************/
5267 /* Listing missing functions from xterm.c helps diff stay in step.
5269 xim_destroy_callback (xim, client_data, call_data)
5270 xim_open_dpy (dpyinfo, resource_name)
5271 struct xim_inst_t
5272 xim_instantiate_callback (display, client_data, call_data)
5273 xim_initialize (dpyinfo, resource_name)
5274 xim_close_dpy (dpyinfo)
5279 /* Calculate the absolute position in frame F
5280 from its current recorded position values and gravity. */
5282 void
5283 x_calc_absolute_position (struct frame *f)
5285 int flags = f->size_hint_flags;
5287 /* The sum of the widths of the frame's left and right borders, and
5288 the sum of the heights of the frame's top and bottom borders (in
5289 pixels) drawn by Windows. */
5290 unsigned int left_right_borders_width, top_bottom_borders_height;
5292 /* Try to get the actual values of these two variables. We compute
5293 the border width (height) by subtracting the width (height) of
5294 the frame's client area from the width (height) of the frame's
5295 entire window. */
5296 WINDOWPLACEMENT wp = { 0 };
5297 RECT client_rect = { 0 };
5299 if (GetWindowPlacement (FRAME_W32_WINDOW (f), &wp)
5300 && GetClientRect (FRAME_W32_WINDOW (f), &client_rect))
5302 left_right_borders_width =
5303 (wp.rcNormalPosition.right - wp.rcNormalPosition.left) -
5304 (client_rect.right - client_rect.left);
5306 top_bottom_borders_height =
5307 (wp.rcNormalPosition.bottom - wp.rcNormalPosition.top) -
5308 (client_rect.bottom - client_rect.top);
5310 else
5312 /* Use sensible default values. */
5313 left_right_borders_width = 8;
5314 top_bottom_borders_height = 32;
5317 /* Treat negative positions as relative to the rightmost bottommost
5318 position that fits on the screen. */
5319 if (flags & XNegative)
5320 f->left_pos = (x_display_pixel_width (FRAME_W32_DISPLAY_INFO (f))
5321 - FRAME_PIXEL_WIDTH (f)
5322 + f->left_pos
5323 - (left_right_borders_width - 1));
5325 if (flags & YNegative)
5326 f->top_pos = (x_display_pixel_height (FRAME_W32_DISPLAY_INFO (f))
5327 - FRAME_PIXEL_HEIGHT (f)
5328 + f->top_pos
5329 - (top_bottom_borders_height - 1));
5331 /* The left_pos and top_pos are now relative to the top and left
5332 screen edges, so the flags should correspond. */
5333 f->size_hint_flags &= ~ (XNegative | YNegative);
5336 /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
5337 to really change the position, and 0 when calling from
5338 x_make_frame_visible (in that case, XOFF and YOFF are the current
5339 position values). It is -1 when calling from x_set_frame_parameters,
5340 which means, do adjust for borders but don't change the gravity. */
5342 void
5343 x_set_offset (struct frame *f, register int xoff, register int yoff,
5344 int change_gravity)
5346 int modified_top, modified_left;
5348 if (change_gravity > 0)
5350 f->top_pos = yoff;
5351 f->left_pos = xoff;
5352 f->size_hint_flags &= ~ (XNegative | YNegative);
5353 if (xoff < 0)
5354 f->size_hint_flags |= XNegative;
5355 if (yoff < 0)
5356 f->size_hint_flags |= YNegative;
5357 f->win_gravity = NorthWestGravity;
5359 x_calc_absolute_position (f);
5361 BLOCK_INPUT;
5362 x_wm_set_size_hint (f, (long) 0, 0);
5364 modified_left = f->left_pos;
5365 modified_top = f->top_pos;
5367 my_set_window_pos (FRAME_W32_WINDOW (f),
5368 NULL,
5369 modified_left, modified_top,
5370 0, 0,
5371 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
5372 UNBLOCK_INPUT;
5376 /* Check if we need to resize the frame due to a fullscreen request.
5377 If so needed, resize the frame. */
5378 static void
5379 x_check_fullscreen (struct frame *f)
5381 if (f->want_fullscreen & FULLSCREEN_BOTH)
5383 int width, height, ign;
5385 x_real_positions (f, &f->left_pos, &f->top_pos);
5387 x_fullscreen_adjust (f, &width, &height, &ign, &ign);
5389 /* We do not need to move the window, it shall be taken care of
5390 when setting WM manager hints. */
5391 if (FRAME_COLS (f) != width || FRAME_LINES (f) != height)
5393 change_frame_size (f, height, width, 0, 1, 0);
5394 SET_FRAME_GARBAGED (f);
5395 cancel_mouse_face (f);
5397 /* Wait for the change of frame size to occur */
5398 f->want_fullscreen |= FULLSCREEN_WAIT;
5403 /* Call this to change the size of frame F's x-window.
5404 If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
5405 for this size change and subsequent size changes.
5406 Otherwise we leave the window gravity unchanged. */
5408 void
5409 x_set_window_size (struct frame *f, int change_gravity, int cols, int rows)
5411 int pixelwidth, pixelheight;
5413 BLOCK_INPUT;
5415 check_frame_size (f, &rows, &cols);
5416 f->scroll_bar_actual_width
5417 = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f);
5419 compute_fringe_widths (f, 0);
5421 pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols);
5422 pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
5424 f->win_gravity = NorthWestGravity;
5425 x_wm_set_size_hint (f, (long) 0, 0);
5428 RECT rect;
5430 rect.left = rect.top = 0;
5431 rect.right = pixelwidth;
5432 rect.bottom = pixelheight;
5434 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
5435 FRAME_EXTERNAL_MENU_BAR (f));
5437 my_set_window_pos (FRAME_W32_WINDOW (f),
5438 NULL,
5439 0, 0,
5440 rect.right - rect.left,
5441 rect.bottom - rect.top,
5442 SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
5445 #if 0
5446 /* The following mirrors what is done in xterm.c. It appears to be
5447 for informing lisp of the new size immediately, while the actual
5448 resize will happen asynchronously. But on Windows, the menu bar
5449 automatically wraps when the frame is too narrow to contain it,
5450 and that causes any calculations made here to come out wrong. The
5451 end is some nasty buggy behavior, including the potential loss
5452 of the minibuffer.
5454 Disabling this code is either not sufficient to fix the problems
5455 completely, or it causes fresh problems, but at least it removes
5456 the most problematic symptom of the minibuffer becoming unusable.
5458 -----------------------------------------------------------------
5460 Now, strictly speaking, we can't be sure that this is accurate,
5461 but the window manager will get around to dealing with the size
5462 change request eventually, and we'll hear how it went when the
5463 ConfigureNotify event gets here.
5465 We could just not bother storing any of this information here,
5466 and let the ConfigureNotify event set everything up, but that
5467 might be kind of confusing to the Lisp code, since size changes
5468 wouldn't be reported in the frame parameters until some random
5469 point in the future when the ConfigureNotify event arrives.
5471 We pass 1 for DELAY since we can't run Lisp code inside of
5472 a BLOCK_INPUT. */
5473 change_frame_size (f, rows, cols, 0, 1, 0);
5474 FRAME_PIXEL_WIDTH (f) = pixelwidth;
5475 FRAME_PIXEL_HEIGHT (f) = pixelheight;
5477 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
5478 receive in the ConfigureNotify event; if we get what we asked
5479 for, then the event won't cause the screen to become garbaged, so
5480 we have to make sure to do it here. */
5481 SET_FRAME_GARBAGED (f);
5483 /* If cursor was outside the new size, mark it as off. */
5484 mark_window_cursors_off (XWINDOW (f->root_window));
5486 /* Clear out any recollection of where the mouse highlighting was,
5487 since it might be in a place that's outside the new frame size.
5488 Actually checking whether it is outside is a pain in the neck,
5489 so don't try--just let the highlighting be done afresh with new size. */
5490 cancel_mouse_face (f);
5491 #endif
5493 UNBLOCK_INPUT;
5496 /* Mouse warping. */
5498 void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
5500 void
5501 x_set_mouse_position (struct frame *f, int x, int y)
5503 int pix_x, pix_y;
5505 pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
5506 pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
5508 if (pix_x < 0) pix_x = 0;
5509 if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
5511 if (pix_y < 0) pix_y = 0;
5512 if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
5514 x_set_mouse_pixel_position (f, pix_x, pix_y);
5517 void
5518 x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
5520 RECT rect;
5521 POINT pt;
5523 BLOCK_INPUT;
5525 GetClientRect (FRAME_W32_WINDOW (f), &rect);
5526 pt.x = rect.left + pix_x;
5527 pt.y = rect.top + pix_y;
5528 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
5530 SetCursorPos (pt.x, pt.y);
5532 UNBLOCK_INPUT;
5536 /* focus shifting, raising and lowering. */
5538 void
5539 x_focus_on_frame (struct frame *f)
5541 struct w32_display_info *dpyinfo = &one_w32_display_info;
5543 /* Give input focus to frame. */
5544 BLOCK_INPUT;
5545 #if 0
5546 /* Try not to change its Z-order if possible. */
5547 if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
5548 my_set_focus (f, FRAME_W32_WINDOW (f));
5549 else
5550 #endif
5551 my_set_foreground_window (FRAME_W32_WINDOW (f));
5552 UNBLOCK_INPUT;
5555 void
5556 x_unfocus_frame (struct frame *f)
5560 /* Raise frame F. */
5561 void
5562 x_raise_frame (struct frame *f)
5564 BLOCK_INPUT;
5566 /* Strictly speaking, raise-frame should only change the frame's Z
5567 order, leaving input focus unchanged. This is reasonable behavior
5568 on X where the usual policy is point-to-focus. However, this
5569 behavior would be very odd on Windows where the usual policy is
5570 click-to-focus.
5572 On X, if the mouse happens to be over the raised frame, it gets
5573 input focus anyway (so the window with focus will never be
5574 completely obscured) - if not, then just moving the mouse over it
5575 is sufficient to give it focus. On Windows, the user must actually
5576 click on the frame (preferrably the title bar so as not to move
5577 point), which is more awkward. Also, no other Windows program
5578 raises a window to the top but leaves another window (possibly now
5579 completely obscured) with input focus.
5581 Because there is a system setting on Windows that allows the user
5582 to choose the point to focus policy, we make the strict semantics
5583 optional, but by default we grab focus when raising. */
5585 if (NILP (Vw32_grab_focus_on_raise))
5587 /* The obvious call to my_set_window_pos doesn't work if Emacs is
5588 not already the foreground application: the frame is raised
5589 above all other frames belonging to us, but not above the
5590 current top window. To achieve that, we have to resort to this
5591 more cumbersome method. */
5593 HDWP handle = BeginDeferWindowPos (2);
5594 if (handle)
5596 DeferWindowPos (handle,
5597 FRAME_W32_WINDOW (f),
5598 HWND_TOP,
5599 0, 0, 0, 0,
5600 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5602 DeferWindowPos (handle,
5603 GetForegroundWindow (),
5604 FRAME_W32_WINDOW (f),
5605 0, 0, 0, 0,
5606 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5608 EndDeferWindowPos (handle);
5611 else
5613 my_set_foreground_window (FRAME_W32_WINDOW (f));
5616 UNBLOCK_INPUT;
5619 /* Lower frame F. */
5620 void
5621 x_lower_frame (struct frame *f)
5623 BLOCK_INPUT;
5624 my_set_window_pos (FRAME_W32_WINDOW (f),
5625 HWND_BOTTOM,
5626 0, 0, 0, 0,
5627 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5628 UNBLOCK_INPUT;
5631 static void
5632 w32_frame_raise_lower (FRAME_PTR f, int raise_flag)
5634 if (! FRAME_W32_P (f))
5635 return;
5637 if (raise_flag)
5638 x_raise_frame (f);
5639 else
5640 x_lower_frame (f);
5643 /* Change of visibility. */
5645 /* This tries to wait until the frame is really visible.
5646 However, if the window manager asks the user where to position
5647 the frame, this will return before the user finishes doing that.
5648 The frame will not actually be visible at that time,
5649 but it will become visible later when the window manager
5650 finishes with it. */
5652 void
5653 x_make_frame_visible (struct frame *f)
5655 Lisp_Object type;
5657 BLOCK_INPUT;
5659 type = x_icon_type (f);
5660 if (!NILP (type))
5661 x_bitmap_icon (f, type);
5663 if (! FRAME_VISIBLE_P (f))
5665 /* We test FRAME_GARBAGED_P here to make sure we don't
5666 call x_set_offset a second time
5667 if we get to x_make_frame_visible a second time
5668 before the window gets really visible. */
5669 if (! FRAME_ICONIFIED_P (f)
5670 && ! f->output_data.w32->asked_for_visible)
5672 RECT workarea_rect;
5673 RECT window_rect;
5675 /* Adjust vertical window position in order to avoid being
5676 covered by a task bar placed at the bottom of the desktop. */
5677 SystemParametersInfo (SPI_GETWORKAREA, 0, &workarea_rect, 0);
5678 GetWindowRect (FRAME_W32_WINDOW (f), &window_rect);
5679 if (window_rect.bottom > workarea_rect.bottom
5680 && window_rect.top > workarea_rect.top)
5681 f->top_pos = max (window_rect.top
5682 - window_rect.bottom + workarea_rect.bottom,
5683 workarea_rect.top);
5685 x_set_offset (f, f->left_pos, f->top_pos, 0);
5688 f->output_data.w32->asked_for_visible = 1;
5690 /* The first of these seems to give more expected behavior, but
5691 was added as a commented out line in Sept 1997, with the
5692 second version remaining uncommented. There may have been
5693 some problem with it that led to it not being enabled,
5694 so the old version remains commented out below in case we
5695 decide we need to go back to it [23.0.60 2008-06-09]. */
5696 my_show_window (f, FRAME_W32_WINDOW (f),
5697 f->async_iconified ? SW_RESTORE : SW_SHOW);
5698 /* my_show_window (f, FRAME_W32_WINDOW (f), SW_SHOWNORMAL); */
5701 /* Synchronize to ensure Emacs knows the frame is visible
5702 before we do anything else. We do this loop with input not blocked
5703 so that incoming events are handled. */
5705 Lisp_Object frame;
5706 int count;
5708 /* This must come after we set COUNT. */
5709 UNBLOCK_INPUT;
5711 XSETFRAME (frame, f);
5713 /* Wait until the frame is visible. Process X events until a
5714 MapNotify event has been seen, or until we think we won't get a
5715 MapNotify at all.. */
5716 for (count = input_signal_count + 10;
5717 input_signal_count < count && !FRAME_VISIBLE_P (f);)
5719 /* Force processing of queued events. */
5720 /* TODO: x_sync equivalent? */
5722 /* Machines that do polling rather than SIGIO have been observed
5723 to go into a busy-wait here. So we'll fake an alarm signal
5724 to let the handler know that there's something to be read.
5725 We used to raise a real alarm, but it seems that the handler
5726 isn't always enabled here. This is probably a bug. */
5727 if (input_polling_used ())
5729 /* It could be confusing if a real alarm arrives while processing
5730 the fake one. Turn it off and let the handler reset it. */
5731 int old_poll_suppress_count = poll_suppress_count;
5732 poll_suppress_count = 1;
5733 poll_for_input_1 ();
5734 poll_suppress_count = old_poll_suppress_count;
5737 FRAME_SAMPLE_VISIBILITY (f);
5741 /* Change from mapped state to withdrawn state. */
5743 /* Make the frame visible (mapped and not iconified). */
5745 void
5746 x_make_frame_invisible (struct frame *f)
5748 /* Don't keep the highlight on an invisible frame. */
5749 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5750 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5752 BLOCK_INPUT;
5754 my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
5756 /* We can't distinguish this from iconification
5757 just by the event that we get from the server.
5758 So we can't win using the usual strategy of letting
5759 FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
5760 and synchronize with the server to make sure we agree. */
5761 f->visible = 0;
5762 FRAME_ICONIFIED_P (f) = 0;
5763 f->async_visible = 0;
5764 f->async_iconified = 0;
5766 UNBLOCK_INPUT;
5769 /* Change window state from mapped to iconified. */
5771 void
5772 x_iconify_frame (struct frame *f)
5774 Lisp_Object type;
5776 /* Don't keep the highlight on an invisible frame. */
5777 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5778 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5780 if (f->async_iconified)
5781 return;
5783 BLOCK_INPUT;
5785 type = x_icon_type (f);
5786 if (!NILP (type))
5787 x_bitmap_icon (f, type);
5789 /* Simulate the user minimizing the frame. */
5790 SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
5792 UNBLOCK_INPUT;
5796 /* Free X resources of frame F. */
5798 void
5799 x_free_frame_resources (struct frame *f)
5801 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5802 Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
5804 BLOCK_INPUT;
5806 /* We must free faces before destroying windows because some
5807 font-driver (e.g. xft) access a window while finishing a
5808 face. */
5809 if (FRAME_FACE_CACHE (f))
5810 free_frame_faces (f);
5812 if (FRAME_W32_WINDOW (f))
5813 my_destroy_window (f, FRAME_W32_WINDOW (f));
5815 free_frame_menubar (f);
5817 unload_color (f, FRAME_FOREGROUND_PIXEL (f));
5818 unload_color (f, FRAME_BACKGROUND_PIXEL (f));
5819 unload_color (f, f->output_data.w32->cursor_pixel);
5820 unload_color (f, f->output_data.w32->cursor_foreground_pixel);
5821 unload_color (f, f->output_data.w32->border_pixel);
5822 unload_color (f, f->output_data.w32->mouse_pixel);
5823 if (f->output_data.w32->white_relief.allocated_p)
5824 unload_color (f, f->output_data.w32->white_relief.pixel);
5825 if (f->output_data.w32->black_relief.allocated_p)
5826 unload_color (f, f->output_data.w32->black_relief.pixel);
5828 if (FRAME_FACE_CACHE (f))
5829 free_frame_faces (f);
5831 xfree (f->output_data.w32);
5832 f->output_data.w32 = NULL;
5834 if (f == dpyinfo->w32_focus_frame)
5835 dpyinfo->w32_focus_frame = 0;
5836 if (f == dpyinfo->w32_focus_event_frame)
5837 dpyinfo->w32_focus_event_frame = 0;
5838 if (f == dpyinfo->x_highlight_frame)
5839 dpyinfo->x_highlight_frame = 0;
5841 if (f == hlinfo->mouse_face_mouse_frame)
5843 hlinfo->mouse_face_beg_row
5844 = hlinfo->mouse_face_beg_col = -1;
5845 hlinfo->mouse_face_end_row
5846 = hlinfo->mouse_face_end_col = -1;
5847 hlinfo->mouse_face_window = Qnil;
5848 hlinfo->mouse_face_deferred_gc = 0;
5849 hlinfo->mouse_face_mouse_frame = 0;
5852 UNBLOCK_INPUT;
5856 /* Destroy the window of frame F. */
5857 void
5858 x_destroy_window (struct frame *f)
5860 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5862 x_free_frame_resources (f);
5863 dpyinfo->reference_count--;
5867 /* Setting window manager hints. */
5869 /* Set the normal size hints for the window manager, for frame F.
5870 FLAGS is the flags word to use--or 0 meaning preserve the flags
5871 that the window now has.
5872 If USER_POSITION is nonzero, we set the USPosition
5873 flag (this is useful when FLAGS is 0). */
5874 void
5875 x_wm_set_size_hint (struct frame *f, long flags, int user_position)
5877 Window window = FRAME_W32_WINDOW (f);
5879 enter_crit ();
5881 SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
5882 SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
5883 SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
5884 SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
5886 leave_crit ();
5889 /* Window manager things */
5890 void
5891 x_wm_set_icon_position (struct frame *f, int icon_x, int icon_y)
5893 #if 0
5894 Window window = FRAME_W32_WINDOW (f);
5896 f->display.x->wm_hints.flags |= IconPositionHint;
5897 f->display.x->wm_hints.icon_x = icon_x;
5898 f->display.x->wm_hints.icon_y = icon_y;
5900 XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
5901 #endif
5905 /***********************************************************************
5906 Initialization
5907 ***********************************************************************/
5909 static int w32_initialized = 0;
5911 void
5912 w32_initialize_display_info (Lisp_Object display_name)
5914 struct w32_display_info *dpyinfo = &one_w32_display_info;
5915 Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
5917 memset (dpyinfo, 0, sizeof (*dpyinfo));
5919 /* Put it on w32_display_name_list. */
5920 w32_display_name_list = Fcons (Fcons (display_name, Qnil),
5921 w32_display_name_list);
5922 dpyinfo->name_list_element = XCAR (w32_display_name_list);
5924 dpyinfo->w32_id_name
5925 = (char *) xmalloc (SCHARS (Vinvocation_name)
5926 + SCHARS (Vsystem_name)
5927 + 2);
5928 sprintf (dpyinfo->w32_id_name, "%s@%s",
5929 SDATA (Vinvocation_name), SDATA (Vsystem_name));
5931 /* Default Console mode values - overridden when running in GUI mode
5932 with values obtained from system metrics. */
5933 dpyinfo->resx = 1;
5934 dpyinfo->resy = 1;
5935 dpyinfo->n_planes = 1;
5936 dpyinfo->n_cbits = 4;
5937 dpyinfo->n_fonts = 0;
5938 dpyinfo->smallest_font_height = 1;
5939 dpyinfo->smallest_char_width = 1;
5941 hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
5942 hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
5943 hlinfo->mouse_face_face_id = DEFAULT_FACE_ID;
5944 hlinfo->mouse_face_window = Qnil;
5945 hlinfo->mouse_face_overlay = Qnil;
5946 hlinfo->mouse_face_hidden = 0;
5948 dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
5949 /* TODO: dpyinfo->gray */
5953 /* Create an xrdb-style database of resources to supersede registry settings.
5954 The database is just a concatenation of C strings, finished by an additional
5955 \0. The strings are submitted to some basic normalization, so
5957 [ *]option[ *]:[ *]value...
5959 becomes
5961 option:value...
5963 but any whitespace following value is not removed. */
5965 static char *
5966 w32_make_rdb (char *xrm_option)
5968 char *buffer = xmalloc (strlen (xrm_option) + 2);
5969 char *current = buffer;
5970 char ch;
5971 int in_option = 1;
5972 int before_value = 0;
5974 do {
5975 ch = *xrm_option++;
5977 if (ch == '\n')
5979 *current++ = '\0';
5980 in_option = 1;
5981 before_value = 0;
5983 else if (ch != ' ')
5985 *current++ = ch;
5986 if (in_option && (ch == ':'))
5988 in_option = 0;
5989 before_value = 1;
5991 else if (before_value)
5993 before_value = 0;
5996 else if (!(in_option || before_value))
5998 *current++ = ch;
6000 } while (ch);
6002 *current = '\0';
6004 return buffer;
6007 void
6008 x_flush (struct frame * f)
6009 { /* Nothing to do */ }
6012 extern frame_parm_handler w32_frame_parm_handlers[];
6014 static struct redisplay_interface w32_redisplay_interface =
6016 w32_frame_parm_handlers,
6017 x_produce_glyphs,
6018 x_write_glyphs,
6019 x_insert_glyphs,
6020 x_clear_end_of_line,
6021 x_scroll_run,
6022 x_after_update_window_line,
6023 x_update_window_begin,
6024 x_update_window_end,
6025 x_cursor_to,
6026 x_flush,
6027 0, /* flush_display_optional */
6028 x_clear_window_mouse_face,
6029 x_get_glyph_overhangs,
6030 x_fix_overlapping_area,
6031 w32_draw_fringe_bitmap,
6032 w32_define_fringe_bitmap,
6033 w32_destroy_fringe_bitmap,
6034 w32_compute_glyph_string_overhangs,
6035 x_draw_glyph_string,
6036 w32_define_frame_cursor,
6037 w32_clear_frame_area,
6038 w32_draw_window_cursor,
6039 w32_draw_vertical_window_border,
6040 w32_shift_glyphs_for_insert
6043 static void x_delete_terminal (struct terminal *term);
6045 static struct terminal *
6046 w32_create_terminal (struct w32_display_info *dpyinfo)
6048 struct terminal *terminal;
6050 terminal = create_terminal ();
6052 terminal->type = output_w32;
6053 terminal->display_info.w32 = dpyinfo;
6054 dpyinfo->terminal = terminal;
6056 /* MSVC does not type K&R functions with no arguments correctly, and
6057 so we must explicitly cast them. */
6058 terminal->clear_frame_hook = x_clear_frame;
6059 terminal->ins_del_lines_hook = x_ins_del_lines;
6060 terminal->delete_glyphs_hook = x_delete_glyphs;
6061 terminal->ring_bell_hook = w32_ring_bell;
6062 terminal->reset_terminal_modes_hook = w32_reset_terminal_modes;
6063 terminal->set_terminal_modes_hook = w32_set_terminal_modes;
6064 terminal->update_begin_hook = x_update_begin;
6065 terminal->update_end_hook = x_update_end;
6066 terminal->set_terminal_window_hook = w32_set_terminal_window;
6067 terminal->read_socket_hook = w32_read_socket;
6068 terminal->frame_up_to_date_hook = w32_frame_up_to_date;
6069 terminal->mouse_position_hook = w32_mouse_position;
6070 terminal->frame_rehighlight_hook = w32_frame_rehighlight;
6071 terminal->frame_raise_lower_hook = w32_frame_raise_lower;
6072 /* terminal->fullscreen_hook = XTfullscreen_hook; */
6073 terminal->set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
6074 terminal->condemn_scroll_bars_hook = w32_condemn_scroll_bars;
6075 terminal->redeem_scroll_bar_hook = w32_redeem_scroll_bar;
6076 terminal->judge_scroll_bars_hook = w32_judge_scroll_bars;
6078 terminal->delete_frame_hook = x_destroy_window;
6079 terminal->delete_terminal_hook = x_delete_terminal;
6081 terminal->rif = &w32_redisplay_interface;
6082 terminal->scroll_region_ok = 1; /* We'll scroll partial frames. */
6083 terminal->char_ins_del_ok = 1;
6084 terminal->line_ins_del_ok = 1; /* We'll just blt 'em. */
6085 terminal->fast_clear_end_of_line = 1; /* X does this well. */
6086 terminal->memory_below_frame = 0; /* We don't remember what scrolls
6087 off the bottom. */
6089 /* We don't yet support separate terminals on W32, so don't try to share
6090 keyboards between virtual terminals that are on the same physical
6091 terminal like X does. */
6092 terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD));
6093 init_kboard (terminal->kboard);
6094 KVAR (terminal->kboard, Vwindow_system) = intern ("w32");
6095 terminal->kboard->next_kboard = all_kboards;
6096 all_kboards = terminal->kboard;
6097 /* Don't let the initial kboard remain current longer than necessary.
6098 That would cause problems if a file loaded on startup tries to
6099 prompt in the mini-buffer. */
6100 if (current_kboard == initial_kboard)
6101 current_kboard = terminal->kboard;
6102 terminal->kboard->reference_count++;
6104 return terminal;
6107 static void
6108 x_delete_terminal (struct terminal *terminal)
6110 struct w32_display_info *dpyinfo = terminal->display_info.w32;
6112 /* Protect against recursive calls. delete_frame in
6113 delete_terminal calls us back when it deletes our last frame. */
6114 if (!terminal->name)
6115 return;
6117 BLOCK_INPUT;
6119 x_delete_display (dpyinfo);
6120 UNBLOCK_INPUT;
6123 struct w32_display_info *
6124 w32_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
6126 struct w32_display_info *dpyinfo;
6127 struct terminal *terminal;
6128 HDC hdc;
6130 BLOCK_INPUT;
6132 if (!w32_initialized)
6134 w32_initialize ();
6135 w32_initialized = 1;
6138 w32_initialize_display_info (display_name);
6140 dpyinfo = &one_w32_display_info;
6141 terminal = w32_create_terminal (dpyinfo);
6143 /* Set the name of the terminal. */
6144 terminal->name = (char *) xmalloc (SBYTES (display_name) + 1);
6145 strncpy (terminal->name, SDATA (display_name), SBYTES (display_name));
6146 terminal->name[SBYTES (display_name)] = 0;
6148 dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
6150 /* Put this display on the chain. */
6151 dpyinfo->next = x_display_list;
6152 x_display_list = dpyinfo;
6154 hdc = GetDC (NULL);
6156 dpyinfo->root_window = GetDesktopWindow ();
6157 dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
6158 dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
6159 dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
6160 dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
6161 dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
6162 ReleaseDC (NULL, hdc);
6164 /* initialise palette with white and black */
6166 XColor color;
6167 w32_defined_color (0, "white", &color, 1);
6168 w32_defined_color (0, "black", &color, 1);
6171 /* Add the default keyboard. */
6172 add_keyboard_wait_descriptor (0);
6174 /* Create Fringe Bitmaps and store them for later use.
6176 On W32, bitmaps are all unsigned short, as Windows requires
6177 bitmap data to be Word aligned. For some reason they are
6178 horizontally reflected compared to how they appear on X, so we
6179 need to bitswap and convert to unsigned shorts before creating
6180 the bitmaps. */
6181 w32_init_fringe (terminal->rif);
6183 #ifdef F_SETOWN
6184 fcntl (connection, F_SETOWN, getpid ());
6185 #endif /* ! defined (F_SETOWN) */
6187 #ifdef SIGIO
6188 if (interrupt_input)
6189 init_sigio (connection);
6190 #endif /* ! defined (SIGIO) */
6192 UNBLOCK_INPUT;
6194 return dpyinfo;
6197 /* Get rid of display DPYINFO, assuming all frames are already gone. */
6198 void
6199 x_delete_display (struct w32_display_info *dpyinfo)
6201 /* Discard this display from w32_display_name_list and w32_display_list.
6202 We can't use Fdelq because that can quit. */
6203 if (! NILP (w32_display_name_list)
6204 && EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
6205 w32_display_name_list = XCDR (w32_display_name_list);
6206 else
6208 Lisp_Object tail;
6210 tail = w32_display_name_list;
6211 while (CONSP (tail) && CONSP (XCDR (tail)))
6213 if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element))
6215 XSETCDR (tail, XCDR (XCDR (tail)));
6216 break;
6218 tail = XCDR (tail);
6222 /* free palette table */
6224 struct w32_palette_entry * plist;
6226 plist = dpyinfo->color_list;
6227 while (plist)
6229 struct w32_palette_entry * pentry = plist;
6230 plist = plist->next;
6231 xfree (pentry);
6233 dpyinfo->color_list = NULL;
6234 if (dpyinfo->palette)
6235 DeleteObject (dpyinfo->palette);
6237 xfree (dpyinfo->w32_id_name);
6239 w32_reset_fringes ();
6242 /* Set up use of W32. */
6244 DWORD WINAPI w32_msg_worker (void * arg);
6246 static void
6247 w32_initialize (void)
6249 HANDLE shell;
6250 HRESULT (WINAPI * set_user_model) (wchar_t * id);
6252 baud_rate = 19200;
6254 w32_system_caret_hwnd = NULL;
6255 w32_system_caret_height = 0;
6256 w32_system_caret_x = 0;
6257 w32_system_caret_y = 0;
6259 /* On Windows 7 and later, we need to set the user model ID
6260 to associate emacsclient launched files with Emacs frames
6261 in the UI. */
6262 shell = GetModuleHandle ("shell32.dll");
6263 if (shell)
6265 set_user_model
6266 = (void *) GetProcAddress (shell,
6267 "SetCurrentProcessExplicitAppUserModelID");
6269 /* If the function is defined, then we are running on Windows 7
6270 or newer, and the UI uses this to group related windows
6271 together. Since emacs, runemacs, emacsclient are related, we
6272 want them grouped even though the executables are different,
6273 so we need to set a consistent ID between them. */
6274 if (set_user_model)
6275 set_user_model (L"GNU.Emacs");
6278 /* Initialize w32_use_visible_system_caret based on whether a screen
6279 reader is in use. */
6280 if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
6281 &w32_use_visible_system_caret, 0))
6282 w32_use_visible_system_caret = 0;
6284 last_tool_bar_item = -1;
6285 any_help_event_p = 0;
6287 /* Initialize input mode: interrupt_input off, no flow control, allow
6288 8 bit character input, standard quit char. */
6289 Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
6292 DWORD input_locale_id = (DWORD) GetKeyboardLayout (0);
6293 keyboard_codepage = codepage_for_locale ((LCID) (input_locale_id & 0xffff));
6296 /* Create the window thread - it will terminate itself when the app
6297 terminates */
6298 init_crit ();
6300 dwMainThreadId = GetCurrentThreadId ();
6301 DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
6302 GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
6304 /* Wait for thread to start */
6306 MSG msg;
6308 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
6310 hWindowsThread = CreateThread (NULL, 0,
6311 w32_msg_worker,
6312 0, 0, &dwWindowsThreadId);
6314 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6317 /* It is desirable that mainThread should have the same notion of
6318 focus window and active window as windowsThread. Unfortunately, the
6319 following call to AttachThreadInput, which should do precisely what
6320 we need, causes major problems when Emacs is linked as a console
6321 program. Unfortunately, we have good reasons for doing that, so
6322 instead we need to send messages to windowsThread to make some API
6323 calls for us (ones that affect, or depend on, the active/focus
6324 window state.) */
6325 #ifdef ATTACH_THREADS
6326 AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
6327 #endif
6329 /* Dynamically link to optional system components. */
6331 HMODULE user_lib = GetModuleHandle ("user32.dll");
6333 #define LOAD_PROC(lib, fn) pfn##fn = (void *) GetProcAddress (lib, #fn)
6335 LOAD_PROC (user_lib, SetLayeredWindowAttributes);
6337 #undef LOAD_PROC
6339 /* Ensure scrollbar handle is at least 5 pixels. */
6340 vertical_scroll_bar_min_handle = 5;
6342 /* For either kind of scroll bar, take account of the arrows; these
6343 effectively form the border of the main scroll bar range. */
6344 vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
6345 = GetSystemMetrics (SM_CYVSCROLL);
6349 void
6350 syms_of_w32term (void)
6352 staticpro (&w32_display_name_list);
6353 w32_display_name_list = Qnil;
6355 staticpro (&last_mouse_scroll_bar);
6356 last_mouse_scroll_bar = Qnil;
6358 DEFSYM (Qvendor_specific_keysyms, "vendor-specific-keysyms");
6360 DEFVAR_INT ("w32-num-mouse-buttons",
6361 w32_num_mouse_buttons,
6362 doc: /* Number of physical mouse buttons. */);
6363 w32_num_mouse_buttons = 2;
6365 DEFVAR_LISP ("w32-swap-mouse-buttons",
6366 Vw32_swap_mouse_buttons,
6367 doc: /* Swap the mapping of middle and right mouse buttons.
6368 When nil, middle button is mouse-2 and right button is mouse-3. */);
6369 Vw32_swap_mouse_buttons = Qnil;
6371 DEFVAR_LISP ("w32-grab-focus-on-raise",
6372 Vw32_grab_focus_on_raise,
6373 doc: /* Raised frame grabs input focus.
6374 When t, `raise-frame' grabs input focus as well. This fits well
6375 with the normal Windows click-to-focus policy, but might not be
6376 desirable when using a point-to-focus policy. */);
6377 Vw32_grab_focus_on_raise = Qt;
6379 DEFVAR_LISP ("w32-capslock-is-shiftlock",
6380 Vw32_capslock_is_shiftlock,
6381 doc: /* Apply CapsLock state to non character input keys.
6382 When nil, CapsLock only affects normal character input keys. */);
6383 Vw32_capslock_is_shiftlock = Qnil;
6385 DEFVAR_LISP ("w32-recognize-altgr",
6386 Vw32_recognize_altgr,
6387 doc: /* Recognize right-alt and left-ctrl as AltGr.
6388 When nil, the right-alt and left-ctrl key combination is
6389 interpreted normally. */);
6390 Vw32_recognize_altgr = Qt;
6392 DEFVAR_BOOL ("w32-use-visible-system-caret",
6393 w32_use_visible_system_caret,
6394 doc: /* Flag to make the system caret visible.
6395 When this is non-nil, Emacs will indicate the position of point by
6396 using the system caret instead of drawing its own cursor. Some screen
6397 reader software does not track the system cursor properly when it is
6398 invisible, and gets confused by Emacs drawing its own cursor, so this
6399 variable is initialized to t when Emacs detects that screen reader
6400 software is running as it starts up.
6402 When this variable is set, other variables affecting the appearance of
6403 the cursor have no effect. */);
6405 w32_use_visible_system_caret = 0;
6407 /* We don't yet support this, but defining this here avoids whining
6408 from cus-start.el and other places, like "M-x set-variable". */
6409 DEFVAR_BOOL ("x-use-underline-position-properties",
6410 x_use_underline_position_properties,
6411 doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties.
6412 A value of nil means ignore them. If you encounter fonts with bogus
6413 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
6414 to 4.1, set this to nil. You can also use `underline-minimum-offset'
6415 to override the font's UNDERLINE_POSITION for small font display
6416 sizes. */);
6417 x_use_underline_position_properties = 0;
6419 DEFVAR_BOOL ("x-underline-at-descent-line",
6420 x_underline_at_descent_line,
6421 doc: /* *Non-nil means to draw the underline at the same place as the descent line.
6422 A value of nil means to draw the underline according to the value of the
6423 variable `x-use-underline-position-properties', which is usually at the
6424 baseline level. The default value is nil. */);
6425 x_underline_at_descent_line = 0;
6427 DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,
6428 doc: /* Which toolkit scroll bars Emacs uses, if any.
6429 A value of nil means Emacs doesn't use toolkit scroll bars.
6430 With the X Window system, the value is a symbol describing the
6431 X toolkit. Possible values are: gtk, motif, xaw, or xaw3d.
6432 With MS Windows, the value is t. */);
6433 Vx_toolkit_scroll_bars = Qt;
6435 staticpro (&last_mouse_motion_frame);
6436 last_mouse_motion_frame = Qnil;