* frames.texi (Pop-Up Menus): Document where menu title comes from (Bug#7684).
[emacs.git] / src / w32term.c
blobb889c96128da4313966c42d5d205defaa93ce9a1
1 /* Implementation of GUI terminal on the Microsoft W32 API.
2 Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #include <config.h>
22 #include <signal.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <setjmp.h>
26 #include "lisp.h"
27 #include "blockinput.h"
28 #include "w32term.h"
30 #include "systty.h"
31 #include "systime.h"
33 #include <ctype.h>
34 #include <errno.h>
35 #include <sys/stat.h>
36 #include <imm.h>
38 #include "charset.h"
39 #include "character.h"
40 #include "coding.h"
41 #include "ccl.h"
42 #include "frame.h"
43 #include "dispextern.h"
44 #include "fontset.h"
45 #include "termhooks.h"
46 #include "termopts.h"
47 #include "termchar.h"
48 #include "disptab.h"
49 #include "buffer.h"
50 #include "window.h"
51 #include "keyboard.h"
52 #include "intervals.h"
53 #include "process.h"
54 #include "atimer.h"
55 #include "keymap.h"
57 #include "w32heap.h"
58 #include <shellapi.h>
60 #include "font.h"
61 #include "w32font.h"
63 /* Fringe bitmaps. */
65 static int max_fringe_bmp = 0;
66 static HBITMAP *fringe_bmp = 0;
68 /* Non-nil means Emacs uses toolkit scroll bars. */
70 Lisp_Object Vx_toolkit_scroll_bars;
72 /* Temporary variables for w32_read_socket. */
74 static int last_mousemove_x = 0;
75 static int last_mousemove_y = 0;
77 /* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
78 #ifndef GET_WHEEL_DELTA_WPARAM
79 #define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
80 #endif
82 /* Non-zero means that a HELP_EVENT has been generated since Emacs
83 start. */
85 static int any_help_event_p;
87 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
88 static Lisp_Object last_window;
90 /* Non-zero means make use of UNDERLINE_POSITION font properties. */
91 int x_use_underline_position_properties;
93 /* Non-zero means to draw the underline at the same place as the descent line. */
95 int x_underline_at_descent_line;
97 extern unsigned int msh_mousewheel;
99 extern void free_frame_menubar ();
101 extern int w32_codepage_for_font (char *fontname);
102 extern Cursor w32_load_cursor (LPCTSTR name);
104 extern Lisp_Object Vwindow_system;
106 #define x_any_window_to_frame x_window_to_frame
107 #define x_top_window_to_frame x_window_to_frame
110 /* This is display since w32 does not support multiple ones. */
111 struct w32_display_info one_w32_display_info;
112 struct w32_display_info *x_display_list;
114 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
115 one for each element of w32_display_list and in the same order.
116 NAME is the name of the frame.
117 FONT-LIST-CACHE records previous values returned by x-list-fonts. */
118 Lisp_Object w32_display_name_list;
121 #ifndef GLYPHSET
122 /* Pre Windows 2000, this was not available, but define it here so
123 that Emacs compiled on such a platform will run on newer versions. */
125 typedef struct tagWCRANGE
127 WCHAR wcLow;
128 USHORT cGlyphs;
129 } WCRANGE;
131 typedef struct tagGLYPHSET
133 DWORD cbThis;
134 DWORD flAccel;
135 DWORD cGlyphsSupported;
136 DWORD cRanges;
137 WCRANGE ranges[1];
138 } GLYPHSET;
140 #endif
142 /* Dynamic linking to SetLayeredWindowAttribute (only since 2000). */
143 BOOL (WINAPI *pfnSetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
145 #ifndef LWA_ALPHA
146 #define LWA_ALPHA 0x02
147 #endif
148 /* WS_EX_LAYERED is defined unconditionally by MingW, but only for W2K and
149 later targets by MSVC headers. */
150 #ifndef WS_EX_LAYERED
151 #define WS_EX_LAYERED 0x80000
152 #endif
154 /* Frame being updated by update_frame. This is declared in term.c.
155 This is set by update_begin and looked at by all the
156 w32 functions. It is zero while not inside an update.
157 In that case, the w32 functions assume that `SELECTED_FRAME ()'
158 is the frame to apply to. */
159 extern struct frame *updating_frame;
161 /* This is a frame waiting to be autoraised, within w32_read_socket. */
162 struct frame *pending_autoraise_frame;
164 /* The handle of the frame that currently owns the system caret. */
165 HWND w32_system_caret_hwnd;
166 int w32_system_caret_height;
167 int w32_system_caret_x;
168 int w32_system_caret_y;
169 int w32_use_visible_system_caret;
171 DWORD dwWindowsThreadId = 0;
172 HANDLE hWindowsThread = NULL;
173 DWORD dwMainThreadId = 0;
174 HANDLE hMainThread = NULL;
176 int vertical_scroll_bar_min_handle;
177 int vertical_scroll_bar_top_border;
178 int vertical_scroll_bar_bottom_border;
180 int last_scroll_bar_drag_pos;
182 /* Mouse movement. */
184 /* Where the mouse was last time we reported a mouse event. */
185 static RECT last_mouse_glyph;
186 static FRAME_PTR last_mouse_glyph_frame;
187 static Lisp_Object last_mouse_press_frame;
189 int w32_num_mouse_buttons;
191 Lisp_Object Vw32_swap_mouse_buttons;
193 /* Control whether x_raise_frame also sets input focus. */
194 Lisp_Object Vw32_grab_focus_on_raise;
196 /* Control whether Caps Lock affects non-ascii characters. */
197 Lisp_Object Vw32_capslock_is_shiftlock;
199 /* Control whether right-alt and left-ctrl should be recognized as AltGr. */
200 Lisp_Object Vw32_recognize_altgr;
202 /* The scroll bar in which the last motion event occurred.
204 If the last motion event occurred in a scroll bar, we set this
205 so w32_mouse_position can know whether to report a scroll bar motion or
206 an ordinary motion.
208 If the last motion event didn't occur in a scroll bar, we set this
209 to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
210 static Lisp_Object last_mouse_scroll_bar;
211 static int last_mouse_scroll_bar_pos;
213 /* This is a hack. We would really prefer that w32_mouse_position would
214 return the time associated with the position it returns, but there
215 doesn't seem to be any way to wrest the time-stamp from the server
216 along with the position query. So, we just keep track of the time
217 of the last movement we received, and return that in hopes that
218 it's somewhat accurate. */
219 static Time last_mouse_movement_time;
221 /* Incremented by w32_read_socket whenever it really tries to read
222 events. */
223 #ifdef __STDC__
224 static int volatile input_signal_count;
225 #else
226 static int input_signal_count;
227 #endif
229 extern Lisp_Object Vcommand_line_args, Vsystem_name;
231 #ifndef USE_CRT_DLL
232 extern int errno;
233 #endif
235 /* A mask of extra modifier bits to put into every keyboard char. */
236 extern EMACS_INT extra_keyboard_modifiers;
238 /* Keyboard code page - may be changed by language-change events. */
239 static int keyboard_codepage;
241 static void x_update_window_end P_ ((struct window *, int, int));
242 static void w32_handle_tool_bar_click P_ ((struct frame *,
243 struct input_event *));
244 static void w32_define_cursor P_ ((Window, Cursor));
246 void x_lower_frame P_ ((struct frame *));
247 void x_scroll_bar_clear P_ ((struct frame *));
248 void x_wm_set_size_hint P_ ((struct frame *, long, int));
249 void x_raise_frame P_ ((struct frame *));
250 void x_set_window_size P_ ((struct frame *, int, int, int));
251 void x_wm_set_window_state P_ ((struct frame *, int));
252 void x_wm_set_icon_pixmap P_ ((struct frame *, int));
253 static void w32_initialize P_ ((void));
254 static void x_update_end P_ ((struct frame *));
255 static void w32_frame_up_to_date P_ ((struct frame *));
256 static void w32_set_terminal_modes P_ ((struct terminal *));
257 static void w32_reset_terminal_modes P_ ((struct terminal *));
258 static void x_clear_frame P_ ((struct frame *));
259 static void frame_highlight P_ ((struct frame *));
260 static void frame_unhighlight P_ ((struct frame *));
261 static void x_new_focus_frame P_ ((struct w32_display_info *,
262 struct frame *));
263 static void x_focus_changed P_ ((int, int, struct w32_display_info *,
264 struct frame *, struct input_event *));
265 static void w32_detect_focus_change P_ ((struct w32_display_info *,
266 W32Msg *, struct input_event *));
267 static void w32_frame_rehighlight P_ ((struct frame *));
268 static void x_frame_rehighlight P_ ((struct w32_display_info *));
269 static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *));
270 static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int,
271 enum text_cursor_kinds));
272 static void w32_clip_to_row P_ ((struct window *, struct glyph_row *, int, HDC));
273 static BOOL my_show_window P_ ((struct frame *, HWND, int));
274 static void my_set_window_pos P_ ((HWND, HWND, int, int, int, int, UINT));
275 static void my_set_focus P_ ((struct frame *, HWND));
276 static void my_set_foreground_window P_ ((HWND));
277 static void my_destroy_window P_ ((struct frame *, HWND));
279 static Lisp_Object Qvendor_specific_keysyms;
282 /***********************************************************************
283 Debugging
284 ***********************************************************************/
286 #if 0
288 /* This is a function useful for recording debugging information about
289 the sequence of occurrences in this file. */
291 struct record
293 char *locus;
294 int type;
297 struct record event_record[100];
299 int event_record_index;
301 record_event (locus, type)
302 char *locus;
303 int type;
305 if (event_record_index == sizeof (event_record) / sizeof (struct record))
306 event_record_index = 0;
308 event_record[event_record_index].locus = locus;
309 event_record[event_record_index].type = type;
310 event_record_index++;
313 #endif /* 0 */
316 void
317 XChangeGC (void * ignore, XGCValues* gc, unsigned long mask,
318 XGCValues *xgcv)
320 if (mask & GCForeground)
321 gc->foreground = xgcv->foreground;
322 if (mask & GCBackground)
323 gc->background = xgcv->background;
324 if (mask & GCFont)
325 gc->font = xgcv->font;
328 XGCValues *
329 XCreateGC (void * ignore, Window window, unsigned long mask,
330 XGCValues *xgcv)
332 XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
333 bzero (gc, sizeof (XGCValues));
335 XChangeGC (ignore, gc, mask, xgcv);
337 return gc;
340 void
341 XGetGCValues (void* ignore, XGCValues *gc,
342 unsigned long mask, XGCValues *xgcv)
344 XChangeGC (ignore, xgcv, mask, gc);
347 static void
348 w32_set_clip_rectangle (HDC hdc, RECT *rect)
350 if (rect)
352 HRGN clip_region = CreateRectRgnIndirect (rect);
353 SelectClipRgn (hdc, clip_region);
354 DeleteObject (clip_region);
356 else
357 SelectClipRgn (hdc, NULL);
361 /* Draw a hollow rectangle at the specified position. */
362 void
363 w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
364 int width, int height)
366 HBRUSH hb, oldhb;
367 HPEN hp, oldhp;
369 hb = CreateSolidBrush (gc->background);
370 hp = CreatePen (PS_SOLID, 0, gc->foreground);
371 oldhb = SelectObject (hdc, hb);
372 oldhp = SelectObject (hdc, hp);
374 Rectangle (hdc, x, y, x + width, y + height);
376 SelectObject (hdc, oldhb);
377 SelectObject (hdc, oldhp);
378 DeleteObject (hb);
379 DeleteObject (hp);
382 /* Draw a filled rectangle at the specified position. */
383 void
384 w32_fill_rect (f, hdc, pix, lprect)
385 FRAME_PTR f;
386 HDC hdc;
387 COLORREF pix;
388 RECT * lprect;
390 HBRUSH hb;
392 hb = CreateSolidBrush (pix);
393 FillRect (hdc, lprect, hb);
394 DeleteObject (hb);
397 void
398 w32_clear_window (f)
399 FRAME_PTR f;
401 RECT rect;
402 HDC hdc = get_frame_dc (f);
404 /* Under certain conditions, this can be called at startup with
405 a console frame pointer before the GUI frame is created. An HDC
406 of 0 indicates this. */
407 if (hdc)
409 GetClientRect (FRAME_W32_WINDOW (f), &rect);
410 w32_clear_rect (f, hdc, &rect);
413 release_frame_dc (f, hdc);
416 #define OPAQUE_FRAME 255
418 void
419 x_set_frame_alpha (f)
420 struct frame *f;
422 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
423 double alpha = 1.0;
424 double alpha_min = 1.0;
425 BYTE opac;
426 LONG ex_style;
427 HWND window = FRAME_W32_WINDOW (f);
429 /* Older versions of Windows do not support transparency. */
430 if (!pfnSetLayeredWindowAttributes)
431 return;
433 if (dpyinfo->x_highlight_frame == f)
434 alpha = f->alpha[0];
435 else
436 alpha = f->alpha[1];
438 if (FLOATP (Vframe_alpha_lower_limit))
439 alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
440 else if (INTEGERP (Vframe_alpha_lower_limit))
441 alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
443 if (alpha < 0.0)
444 return;
445 else if (alpha > 1.0)
446 alpha = 1.0;
447 else if (alpha < alpha_min && alpha_min <= 1.0)
448 alpha = alpha_min;
450 opac = alpha * OPAQUE_FRAME;
452 ex_style = GetWindowLong (window, GWL_EXSTYLE);
454 if (opac == OPAQUE_FRAME)
455 ex_style &= ~WS_EX_LAYERED;
456 else
457 ex_style |= WS_EX_LAYERED;
459 SetWindowLong (window, GWL_EXSTYLE, ex_style);
461 if (opac != OPAQUE_FRAME)
462 pfnSetLayeredWindowAttributes (window, 0, opac, LWA_ALPHA);
466 x_display_pixel_height (dpyinfo)
467 struct w32_display_info *dpyinfo;
469 HDC dc = GetDC (NULL);
470 int pixels = GetDeviceCaps (dc, VERTRES);
471 ReleaseDC (NULL, dc);
472 return pixels;
476 x_display_pixel_width (dpyinfo)
477 struct w32_display_info *dpyinfo;
479 HDC dc = GetDC (NULL);
480 int pixels = GetDeviceCaps (dc, HORZRES);
481 ReleaseDC (NULL, dc);
482 return pixels;
486 /***********************************************************************
487 Starting and ending an update
488 ***********************************************************************/
490 /* Start an update of frame F. This function is installed as a hook
491 for update_begin, i.e. it is called when update_begin is called.
492 This function is called prior to calls to x_update_window_begin for
493 each window being updated. */
495 static void
496 x_update_begin (f)
497 struct frame *f;
499 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
501 if (! FRAME_W32_P (f))
502 return;
504 /* Regenerate display palette before drawing if list of requested
505 colors has changed. */
506 if (display_info->regen_palette)
508 w32_regenerate_palette (f);
509 display_info->regen_palette = FALSE;
514 /* Start update of window W. Set the global variable updated_window
515 to the window being updated and set output_cursor to the cursor
516 position of W. */
518 static void
519 x_update_window_begin (w)
520 struct window *w;
522 struct frame *f = XFRAME (WINDOW_FRAME (w));
523 struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
525 /* Hide the system caret during an update. */
526 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
528 SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
531 updated_window = w;
532 set_output_cursor (&w->cursor);
534 BLOCK_INPUT;
536 if (f == display_info->mouse_face_mouse_frame)
538 /* Don't do highlighting for mouse motion during the update. */
539 display_info->mouse_face_defer = 1;
541 /* If F needs to be redrawn, simply forget about any prior mouse
542 highlighting. */
543 if (FRAME_GARBAGED_P (f))
544 display_info->mouse_face_window = Qnil;
546 #if 0 /* Rows in a current matrix containing glyphs in mouse-face have
547 their mouse_face_p flag set, which means that they are always
548 unequal to rows in a desired matrix which never have that
549 flag set. So, rows containing mouse-face glyphs are never
550 scrolled, and we don't have to switch the mouse highlight off
551 here to prevent it from being scrolled. */
553 /* Can we tell that this update does not affect the window
554 where the mouse highlight is? If so, no need to turn off.
555 Likewise, don't do anything if the frame is garbaged;
556 in that case, the frame's current matrix that we would use
557 is all wrong, and we will redisplay that line anyway. */
558 if (!NILP (display_info->mouse_face_window)
559 && w == XWINDOW (display_info->mouse_face_window))
561 int i;
563 for (i = 0; i < w->desired_matrix->nrows; ++i)
564 if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
565 break;
567 if (i < w->desired_matrix->nrows)
568 clear_mouse_face (display_info);
570 #endif /* 0 */
573 UNBLOCK_INPUT;
576 /* Draw a vertical window border from (x,y0) to (x,y1) */
578 static void
579 w32_draw_vertical_window_border (w, x, y0, y1)
580 struct window *w;
581 int x, y0, y1;
583 struct frame *f = XFRAME (WINDOW_FRAME (w));
584 RECT r;
585 HDC hdc;
586 struct face *face;
588 r.left = x;
589 r.right = x + 1;
590 r.top = y0;
591 r.bottom = y1;
593 hdc = get_frame_dc (f);
594 face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
595 if (face)
596 w32_fill_rect (f, hdc, face->foreground, &r);
597 else
598 w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
600 release_frame_dc (f, hdc);
604 /* End update of window W (which is equal to updated_window).
606 Draw vertical borders between horizontally adjacent windows, and
607 display W's cursor if CURSOR_ON_P is non-zero.
609 MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
610 glyphs in mouse-face were overwritten. In that case we have to
611 make sure that the mouse-highlight is properly redrawn.
613 W may be a menu bar pseudo-window in case we don't have X toolkit
614 support. Such windows don't have a cursor, so don't display it
615 here. */
617 static void
618 x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p)
619 struct window *w;
620 int cursor_on_p, mouse_face_overwritten_p;
622 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (XFRAME (w->frame));
624 if (!w->pseudo_window_p)
626 BLOCK_INPUT;
628 if (cursor_on_p)
629 display_and_set_cursor (w, 1, output_cursor.hpos,
630 output_cursor.vpos,
631 output_cursor.x, output_cursor.y);
633 if (draw_window_fringes (w, 1))
634 x_draw_vertical_border (w);
636 UNBLOCK_INPUT;
639 /* If a row with mouse-face was overwritten, arrange for
640 XTframe_up_to_date to redisplay the mouse highlight. */
641 if (mouse_face_overwritten_p)
643 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
644 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
645 dpyinfo->mouse_face_window = Qnil;
648 /* Unhide the caret. This won't actually show the cursor, unless it
649 was visible before the corresponding call to HideCaret in
650 x_update_window_begin. */
651 if (w32_use_visible_system_caret && w32_system_caret_hwnd)
653 SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
656 updated_window = NULL;
660 /* End update of frame F. This function is installed as a hook in
661 update_end. */
663 static void
664 x_update_end (f)
665 struct frame *f;
667 if (! FRAME_W32_P (f))
668 return;
670 /* Mouse highlight may be displayed again. */
671 FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
675 /* This function is called from various places in xdisp.c whenever a
676 complete update has been performed. The global variable
677 updated_window is not available here. */
679 static void
680 w32_frame_up_to_date (f)
681 struct frame *f;
683 if (FRAME_W32_P (f))
685 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
687 if (dpyinfo->mouse_face_deferred_gc
688 || f == dpyinfo->mouse_face_mouse_frame)
690 BLOCK_INPUT;
691 if (dpyinfo->mouse_face_mouse_frame)
692 note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
693 dpyinfo->mouse_face_mouse_x,
694 dpyinfo->mouse_face_mouse_y);
695 dpyinfo->mouse_face_deferred_gc = 0;
696 UNBLOCK_INPUT;
702 /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
703 arrow bitmaps, or clear the fringes if no bitmaps are required
704 before DESIRED_ROW is made current. The window being updated is
705 found in updated_window. This function is called from
706 update_window_line only if it is known that there are differences
707 between bitmaps to be drawn between current row and DESIRED_ROW. */
709 static void
710 x_after_update_window_line (desired_row)
711 struct glyph_row *desired_row;
713 struct window *w = updated_window;
714 struct frame *f;
715 int width, height;
717 xassert (w);
719 if (!desired_row->mode_line_p && !w->pseudo_window_p)
720 desired_row->redraw_fringe_bitmaps_p = 1;
722 /* When a window has disappeared, make sure that no rest of
723 full-width rows stays visible in the internal border. Could
724 check here if updated_window is the leftmost/rightmost window,
725 but I guess it's not worth doing since vertically split windows
726 are almost never used, internal border is rarely set, and the
727 overhead is very small. */
728 if (windows_or_buffers_changed
729 && desired_row->full_width_p
730 && (f = XFRAME (w->frame),
731 width = FRAME_INTERNAL_BORDER_WIDTH (f),
732 width != 0)
733 && (height = desired_row->visible_height,
734 height > 0))
736 int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
738 BLOCK_INPUT;
740 HDC hdc = get_frame_dc (f);
741 w32_clear_area (f, hdc, 0, y, width, height);
742 w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
743 y, width, height);
744 release_frame_dc (f, hdc);
746 UNBLOCK_INPUT;
751 /* Draw the bitmap WHICH in one of the left or right fringes of
752 window W. ROW is the glyph row for which to display the bitmap; it
753 determines the vertical position at which the bitmap has to be
754 drawn. */
756 static void
757 w32_draw_fringe_bitmap (w, row, p)
758 struct window *w;
759 struct glyph_row *row;
760 struct draw_fringe_bitmap_params *p;
762 struct frame *f = XFRAME (WINDOW_FRAME (w));
763 HDC hdc;
764 struct face *face = p->face;
766 hdc = get_frame_dc (f);
768 if (!p->overlay_p)
770 int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;
772 /* If the fringe is adjacent to the left (right) scroll bar of a
773 leftmost (rightmost, respectively) window, then extend its
774 background to the gap between the fringe and the bar. */
775 if ((WINDOW_LEFTMOST_P (w)
776 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
777 || (WINDOW_RIGHTMOST_P (w)
778 && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
780 int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
782 if (sb_width > 0)
784 int left = WINDOW_SCROLL_BAR_AREA_X (w);
785 int width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
786 * FRAME_COLUMN_WIDTH (f));
788 if (bx < 0)
790 /* Bitmap fills the fringe. */
791 if (left + width == p->x)
792 bx = left + sb_width;
793 else if (p->x + p->wd == left)
794 bx = left;
795 if (bx >= 0)
797 int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w);
799 nx = width - sb_width;
800 by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height,
801 row->y));
802 ny = row->visible_height;
805 else
807 if (left + width == bx)
809 bx = left + sb_width;
810 nx += width - sb_width;
812 else if (bx + nx == left)
813 nx += width - sb_width;
818 if (bx >= 0 && nx > 0)
819 w32_fill_area (f, hdc, face->background, bx, by, nx, ny);
822 /* Must clip because of partially visible lines. */
823 w32_clip_to_row (w, row, -1, hdc);
825 if (p->which && p->which < max_fringe_bmp)
827 HBITMAP pixmap = fringe_bmp[p->which];
828 HDC compat_hdc;
829 HANDLE horig_obj;
831 compat_hdc = CreateCompatibleDC (hdc);
833 SaveDC (hdc);
835 horig_obj = SelectObject (compat_hdc, pixmap);
837 /* Paint overlays transparently. */
838 if (p->overlay_p)
840 HBRUSH h_brush, h_orig_brush;
842 SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
843 SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
844 h_brush = CreateSolidBrush (face->foreground);
845 h_orig_brush = SelectObject (hdc, h_brush);
847 BitBlt (hdc, p->x, p->y, p->wd, p->h,
848 compat_hdc, 0, p->dh,
849 DSTINVERT);
850 BitBlt (hdc, p->x, p->y, p->wd, p->h,
851 compat_hdc, 0, p->dh,
852 0x2E064A);
853 BitBlt (hdc, p->x, p->y, p->wd, p->h,
854 compat_hdc, 0, p->dh,
855 DSTINVERT);
857 SelectObject (hdc, h_orig_brush);
858 DeleteObject (h_brush);
860 else
862 SetTextColor (hdc, face->background);
863 SetBkColor (hdc, (p->cursor_p
864 ? f->output_data.w32->cursor_pixel
865 : face->foreground));
867 BitBlt (hdc, p->x, p->y, p->wd, p->h,
868 compat_hdc, 0, p->dh,
869 SRCCOPY);
872 SelectObject (compat_hdc, horig_obj);
873 DeleteDC (compat_hdc);
874 RestoreDC (hdc, -1);
877 w32_set_clip_rectangle (hdc, NULL);
879 release_frame_dc (f, hdc);
882 static void
883 w32_define_fringe_bitmap (which, bits, h, wd)
884 int which;
885 unsigned short *bits;
886 int h, wd;
888 if (which >= max_fringe_bmp)
890 int i = max_fringe_bmp;
891 max_fringe_bmp = which + 20;
892 fringe_bmp = (HBITMAP *) xrealloc (fringe_bmp, max_fringe_bmp * sizeof (HBITMAP));
893 while (i < max_fringe_bmp)
894 fringe_bmp[i++] = 0;
897 fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
900 static void
901 w32_destroy_fringe_bitmap (which)
902 int which;
904 if (which >= max_fringe_bmp)
905 return;
907 if (fringe_bmp[which])
908 DeleteObject (fringe_bmp[which]);
909 fringe_bmp[which] = 0;
914 /* This is called when starting Emacs and when restarting after
915 suspend. When starting Emacs, no window is mapped. And nothing
916 must be done to Emacs's own window if it is suspended (though that
917 rarely happens). */
919 static void
920 w32_set_terminal_modes (struct terminal *term)
924 /* This is called when exiting or suspending Emacs. Exiting will make
925 the W32 windows go away, and suspending requires no action. */
927 static void
928 w32_reset_terminal_modes (struct terminal *term)
934 /***********************************************************************
935 Display Iterator
936 ***********************************************************************/
938 /* Function prototypes of this page. */
940 static void x_set_glyph_string_clipping P_ ((struct glyph_string *));
941 static void x_set_glyph_string_gc P_ ((struct glyph_string *));
942 static void x_draw_glyph_string_background P_ ((struct glyph_string *,
943 int));
944 static void x_draw_glyph_string_foreground P_ ((struct glyph_string *));
945 static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *));
946 static void x_draw_glyph_string_box P_ ((struct glyph_string *));
947 static void x_draw_glyph_string P_ ((struct glyph_string *));
948 static void x_set_cursor_gc P_ ((struct glyph_string *));
949 static void x_set_mode_line_face_gc P_ ((struct glyph_string *));
950 static void x_set_mouse_face_gc P_ ((struct glyph_string *));
951 static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
952 static void w32_setup_relief_color P_ ((struct frame *, struct relief *,
953 double, int, COLORREF));
954 static void x_setup_relief_colors P_ ((struct glyph_string *));
955 static void x_draw_image_glyph_string P_ ((struct glyph_string *));
956 static void x_draw_image_relief P_ ((struct glyph_string *));
957 static void x_draw_image_foreground P_ ((struct glyph_string *));
958 static void w32_draw_image_foreground_1 P_ ((struct glyph_string *, HBITMAP));
959 static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int,
960 int, int, int));
961 static void w32_draw_relief_rect P_ ((struct frame *, int, int, int, int,
962 int, int, int, int, int, int,
963 RECT *));
964 static void w32_draw_box_rect P_ ((struct glyph_string *, int, int, int, int,
965 int, int, int, RECT *));
968 /* Set S->gc to a suitable GC for drawing glyph string S in cursor
969 face. */
971 static void
972 x_set_cursor_gc (s)
973 struct glyph_string *s;
975 if (s->font == FRAME_FONT (s->f)
976 && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
977 && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
978 && !s->cmp)
979 s->gc = s->f->output_data.w32->cursor_gc;
980 else
982 /* Cursor on non-default face: must merge. */
983 XGCValues xgcv;
984 unsigned long mask;
986 xgcv.background = s->f->output_data.w32->cursor_pixel;
987 xgcv.foreground = s->face->background;
989 /* If the glyph would be invisible, try a different foreground. */
990 if (xgcv.foreground == xgcv.background)
991 xgcv.foreground = s->face->foreground;
992 if (xgcv.foreground == xgcv.background)
993 xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
994 if (xgcv.foreground == xgcv.background)
995 xgcv.foreground = s->face->foreground;
997 /* Make sure the cursor is distinct from text in this face. */
998 if (xgcv.background == s->face->background
999 && xgcv.foreground == s->face->foreground)
1001 xgcv.background = s->face->foreground;
1002 xgcv.foreground = s->face->background;
1005 IF_DEBUG (x_check_font (s->f, s->font));
1006 xgcv.font = s->font;
1007 mask = GCForeground | GCBackground | GCFont;
1009 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1010 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1011 mask, &xgcv);
1012 else
1013 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1014 = XCreateGC (NULL, s->window, mask, &xgcv);
1016 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1021 /* Set up S->gc of glyph string S for drawing text in mouse face. */
1023 static void
1024 x_set_mouse_face_gc (s)
1025 struct glyph_string *s;
1027 int face_id;
1028 struct face *face;
1030 /* What face has to be used last for the mouse face? */
1031 face_id = FRAME_W32_DISPLAY_INFO (s->f)->mouse_face_face_id;
1032 face = FACE_FROM_ID (s->f, face_id);
1033 if (face == NULL)
1034 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
1036 if (s->first_glyph->type == CHAR_GLYPH)
1037 face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch, -1, Qnil);
1038 else
1039 face_id = FACE_FOR_CHAR (s->f, face, 0, -1, Qnil);
1040 s->face = FACE_FROM_ID (s->f, face_id);
1041 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1043 /* If font in this face is same as S->font, use it. */
1044 if (s->font == s->face->font)
1045 s->gc = s->face->gc;
1046 else
1048 /* Otherwise construct scratch_cursor_gc with values from FACE
1049 but font FONT. */
1050 XGCValues xgcv;
1051 unsigned long mask;
1053 xgcv.background = s->face->background;
1054 xgcv.foreground = s->face->foreground;
1055 IF_DEBUG (x_check_font (s->f, s->font));
1056 xgcv.font = s->font;
1057 mask = GCForeground | GCBackground | GCFont;
1059 if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
1060 XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
1061 mask, &xgcv);
1062 else
1063 FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
1064 = XCreateGC (NULL, s->window, mask, &xgcv);
1066 s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
1069 xassert (s->gc != 0);
1073 /* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
1074 Faces to use in the mode line have already been computed when the
1075 matrix was built, so there isn't much to do, here. */
1077 static INLINE void
1078 x_set_mode_line_face_gc (s)
1079 struct glyph_string *s;
1081 s->gc = s->face->gc;
1085 /* Set S->gc of glyph string S for drawing that glyph string. Set
1086 S->stippled_p to a non-zero value if the face of S has a stipple
1087 pattern. */
1089 static INLINE void
1090 x_set_glyph_string_gc (s)
1091 struct glyph_string *s;
1093 PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1095 if (s->hl == DRAW_NORMAL_TEXT)
1097 s->gc = s->face->gc;
1098 s->stippled_p = s->face->stipple != 0;
1100 else if (s->hl == DRAW_INVERSE_VIDEO)
1102 x_set_mode_line_face_gc (s);
1103 s->stippled_p = s->face->stipple != 0;
1105 else if (s->hl == DRAW_CURSOR)
1107 x_set_cursor_gc (s);
1108 s->stippled_p = 0;
1110 else if (s->hl == DRAW_MOUSE_FACE)
1112 x_set_mouse_face_gc (s);
1113 s->stippled_p = s->face->stipple != 0;
1115 else if (s->hl == DRAW_IMAGE_RAISED
1116 || s->hl == DRAW_IMAGE_SUNKEN)
1118 s->gc = s->face->gc;
1119 s->stippled_p = s->face->stipple != 0;
1121 else
1123 s->gc = s->face->gc;
1124 s->stippled_p = s->face->stipple != 0;
1127 /* GC must have been set. */
1128 xassert (s->gc != 0);
1132 /* Set clipping for output of glyph string S. S may be part of a mode
1133 line or menu if we don't have X toolkit support. */
1135 static INLINE void
1136 x_set_glyph_string_clipping (s)
1137 struct glyph_string *s;
1139 RECT *r = s->clip;
1140 int n = get_glyph_string_clip_rects (s, r, 2);
1142 if (n == 1)
1143 w32_set_clip_rectangle (s->hdc, r);
1144 else if (n > 1)
1146 HRGN full_clip, clip1, clip2;
1147 clip1 = CreateRectRgnIndirect (r);
1148 clip2 = CreateRectRgnIndirect (r + 1);
1149 if (CombineRgn (full_clip, clip1, clip2, RGN_OR) != ERROR)
1151 SelectClipRgn (s->hdc, full_clip);
1153 DeleteObject (clip1);
1154 DeleteObject (clip2);
1155 DeleteObject (full_clip);
1157 s->num_clips = n;
1160 /* Set SRC's clipping for output of glyph string DST. This is called
1161 when we are drawing DST's left_overhang or right_overhang only in
1162 the area of SRC. */
1164 static void
1165 x_set_glyph_string_clipping_exactly (src, dst)
1166 struct glyph_string *src, *dst;
1168 RECT r;
1170 r.left = src->x;
1171 r.right = r.left + src->width;
1172 r.top = src->y;
1173 r.bottom = r.top + src->height;
1174 dst->clip[0] = r;
1175 dst->num_clips = 1;
1176 w32_set_clip_rectangle (dst->hdc, &r);
1179 /* RIF:
1180 Compute left and right overhang of glyph string S. */
1182 static void
1183 w32_compute_glyph_string_overhangs (s)
1184 struct glyph_string *s;
1186 if (s->cmp == NULL
1187 && s->first_glyph->type == CHAR_GLYPH
1188 && !s->font_not_found_p)
1190 unsigned *code = alloca (sizeof (unsigned) * s->nchars);
1191 struct font *font = s->font;
1192 struct font_metrics metrics;
1193 int i;
1195 for (i = 0; i < s->nchars; i++)
1196 code[i] = s->char2b[i];
1197 font->driver->text_extents (font, code, s->nchars, &metrics);
1198 s->right_overhang = (metrics.rbearing > metrics.width
1199 ? metrics.rbearing - metrics.width : 0);
1200 s->left_overhang = metrics.lbearing < 0 ? -metrics.lbearing : 0;
1202 else if (s->cmp)
1204 s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
1205 s->left_overhang = -s->cmp->lbearing;
1209 /* Fill rectangle X, Y, W, H with background color of glyph string S. */
1211 static INLINE void
1212 x_clear_glyph_string_rect (s, x, y, w, h)
1213 struct glyph_string *s;
1214 int x, y, w, h;
1216 int real_x = x;
1217 int real_y = y;
1218 int real_w = w;
1219 int real_h = h;
1220 #if 0
1221 /* Take clipping into account. */
1222 if (s->gc->clip_mask == Rect)
1224 real_x = max (real_x, s->gc->clip_rectangle.left);
1225 real_y = max (real_y, s->gc->clip_rectangle.top);
1226 real_w = min (real_w, s->gc->clip_rectangle.right
1227 - s->gc->clip_rectangle.left);
1228 real_h = min (real_h, s->gc->clip_rectangle.bottom
1229 - s->gc->clip_rectangle.top);
1231 #endif
1232 w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
1233 real_w, real_h);
1237 /* Draw the background of glyph_string S. If S->background_filled_p
1238 is non-zero don't draw it. FORCE_P non-zero means draw the
1239 background even if it wouldn't be drawn normally. This is used
1240 when a string preceding S draws into the background of S, or S
1241 contains the first component of a composition. */
1243 static void
1244 x_draw_glyph_string_background (s, force_p)
1245 struct glyph_string *s;
1246 int force_p;
1248 /* Nothing to do if background has already been drawn or if it
1249 shouldn't be drawn in the first place. */
1250 if (!s->background_filled_p)
1252 int box_line_width = max (s->face->box_line_width, 0);
1254 #if 0 /* TODO: stipple */
1255 if (s->stippled_p)
1257 /* Fill background with a stipple pattern. */
1258 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
1259 XFillRectangle (s->display, s->window, s->gc, s->x,
1260 s->y + box_line_width,
1261 s->background_width,
1262 s->height - 2 * box_line_width);
1263 XSetFillStyle (s->display, s->gc, FillSolid);
1264 s->background_filled_p = 1;
1266 else
1267 #endif
1268 if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1269 || s->font_not_found_p
1270 || s->extends_to_end_of_line_p
1271 || force_p)
1273 x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1274 s->background_width,
1275 s->height - 2 * box_line_width);
1276 s->background_filled_p = 1;
1282 /* Draw the foreground of glyph string S. */
1284 static void
1285 x_draw_glyph_string_foreground (s)
1286 struct glyph_string *s;
1288 int i, x;
1290 /* If first glyph of S has a left box line, start drawing the text
1291 of S to the right of that box line. */
1292 if (s->face->box != FACE_NO_BOX
1293 && s->first_glyph->left_box_line_p)
1294 x = s->x + eabs (s->face->box_line_width);
1295 else
1296 x = s->x;
1298 SetTextColor (s->hdc, s->gc->foreground);
1299 SetBkColor (s->hdc, s->gc->background);
1300 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1302 /* Draw characters of S as rectangles if S's font could not be
1303 loaded. */
1304 if (s->font_not_found_p)
1306 for (i = 0; i < s->nchars; ++i)
1308 struct glyph *g = s->first_glyph + i;
1310 w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
1311 s->height - 1);
1312 x += g->pixel_width;
1315 else
1317 struct font *font = s->font;
1318 int boff = font->baseline_offset;
1319 int y;
1320 HFONT old_font;
1322 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1324 if (font->vertical_centering)
1325 boff = VCENTER_BASELINE_OFFSET (font, s->f) - boff;
1327 y = s->ybase - boff;
1328 if (s->for_overlaps
1329 || (s->background_filled_p && s->hl != DRAW_CURSOR))
1330 font->driver->draw (s, 0, s->nchars, x, y, 0);
1331 else
1332 font->driver->draw (s, 0, s->nchars, x, y, 1);
1333 if (s->face->overstrike)
1334 font->driver->draw (s, 0, s->nchars, x + 1, y, 0);
1336 SelectObject (s->hdc, old_font);
1340 /* Draw the foreground of composite glyph string S. */
1342 static void
1343 x_draw_composite_glyph_string_foreground (s)
1344 struct glyph_string *s;
1346 int i, j, x;
1347 struct font *font = s->font;
1349 /* If first glyph of S has a left box line, start drawing the text
1350 of S to the right of that box line. */
1351 if (s->face && s->face->box != FACE_NO_BOX
1352 && s->first_glyph->left_box_line_p)
1353 x = s->x + eabs (s->face->box_line_width);
1354 else
1355 x = s->x;
1357 /* S is a glyph string for a composition. S->cmp_from is the index
1358 of the first character drawn for glyphs of this composition.
1359 S->cmp_from == 0 means we are drawing the very first character of
1360 this composition. */
1362 SetTextColor (s->hdc, s->gc->foreground);
1363 SetBkColor (s->hdc, s->gc->background);
1364 SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
1366 /* Draw a rectangle for the composition if the font for the very
1367 first character of the composition could not be loaded. */
1368 if (s->font_not_found_p)
1370 if (s->cmp_from == 0)
1371 w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
1372 s->height - 1);
1374 else if (! s->first_glyph->u.cmp.automatic)
1376 int y = s->ybase;
1377 int width = 0;
1378 HFONT old_font;
1380 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1382 for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
1383 if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
1385 int xx = x + s->cmp->offsets[j * 2];
1386 int yy = y - s->cmp->offsets[j * 2 + 1];
1388 font->driver->draw (s, j, j + 1, xx, yy, 0);
1389 if (s->face->overstrike)
1390 font->driver->draw (s, j, j + 1, xx + 1, yy, 0);
1392 SelectObject (s->hdc, old_font);
1394 else
1396 Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
1397 Lisp_Object glyph;
1398 int y = s->ybase;
1399 int width = 0;
1400 HFONT old_font;
1402 old_font = SelectObject (s->hdc, FONT_HANDLE (font));
1404 for (i = j = s->cmp_from; i < s->cmp_to; i++)
1406 glyph = LGSTRING_GLYPH (gstring, i);
1407 if (NILP (LGLYPH_ADJUSTMENT (glyph)))
1408 width += LGLYPH_WIDTH (glyph);
1409 else
1411 int xoff, yoff, wadjust;
1413 if (j < i)
1415 font->driver->draw (s, j, i, x, y, 0);
1416 x += width;
1418 xoff = LGLYPH_XOFF (glyph);
1419 yoff = LGLYPH_YOFF (glyph);
1420 wadjust = LGLYPH_WADJUST (glyph);
1421 font->driver->draw (s, i, i + 1, x + xoff, y + yoff, 0);
1422 x += wadjust;
1423 j = i + 1;
1424 width = 0;
1427 if (j < i)
1428 font->driver->draw (s, j, i, x, y, 0);
1430 SelectObject (s->hdc, old_font);
1435 /* Brightness beyond which a color won't have its highlight brightness
1436 boosted.
1438 Nominally, highlight colors for `3d' faces are calculated by
1439 brightening an object's color by a constant scale factor, but this
1440 doesn't yield good results for dark colors, so for colors who's
1441 brightness is less than this value (on a scale of 0-255) have to
1442 use an additional additive factor.
1444 The value here is set so that the default menu-bar/mode-line color
1445 (grey75) will not have its highlights changed at all. */
1446 #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 187
1449 /* Allocate a color which is lighter or darker than *COLOR by FACTOR
1450 or DELTA. Try a color with RGB values multiplied by FACTOR first.
1451 If this produces the same color as COLOR, try a color where all RGB
1452 values have DELTA added. Return the allocated color in *COLOR.
1453 DISPLAY is the X display, CMAP is the colormap to operate on.
1454 Value is non-zero if successful. */
1456 static int
1457 w32_alloc_lighter_color (f, color, factor, delta)
1458 struct frame *f;
1459 COLORREF *color;
1460 double factor;
1461 int delta;
1463 COLORREF new;
1464 long bright;
1466 /* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
1467 delta /= 256;
1469 /* Change RGB values by specified FACTOR. Avoid overflow! */
1470 xassert (factor >= 0);
1471 new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
1472 min (0xff, factor * GetGValue (*color)),
1473 min (0xff, factor * GetBValue (*color)));
1475 /* Calculate brightness of COLOR. */
1476 bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
1477 + GetBValue (*color)) / 6;
1479 /* We only boost colors that are darker than
1480 HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
1481 if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
1482 /* Make an additive adjustment to NEW, because it's dark enough so
1483 that scaling by FACTOR alone isn't enough. */
1485 /* How far below the limit this color is (0 - 1, 1 being darker). */
1486 double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
1487 /* The additive adjustment. */
1488 int min_delta = delta * dimness * factor / 2;
1490 if (factor < 1)
1491 new = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
1492 max (0, min (0xff, min_delta - GetGValue (*color))),
1493 max (0, min (0xff, min_delta - GetBValue (*color))));
1494 else
1495 new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
1496 max (0, min (0xff, min_delta + GetGValue (*color))),
1497 max (0, min (0xff, min_delta + GetBValue (*color))));
1500 if (new == *color)
1501 new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
1502 max (0, min (0xff, delta + GetGValue (*color))),
1503 max (0, min (0xff, delta + GetBValue (*color))));
1505 /* TODO: Map to palette and retry with delta if same? */
1506 /* TODO: Free colors (if using palette)? */
1508 if (new == *color)
1509 return 0;
1511 *color = new;
1513 return 1;
1516 /* On frame F, translate pixel colors to RGB values for the NCOLORS
1517 colors in COLORS. On W32, we no longer try to map colors to
1518 a palette. */
1519 void
1520 x_query_colors (f, colors, ncolors)
1521 struct frame *f;
1522 XColor *colors;
1523 int ncolors;
1525 int i;
1527 for (i = 0; i < ncolors; i++)
1529 DWORD pixel = colors[i].pixel;
1530 /* Convert to a 16 bit value in range 0 - 0xffff. */
1531 colors[i].red = GetRValue (pixel) * 257;
1532 colors[i].green = GetGValue (pixel) * 257;
1533 colors[i].blue = GetBValue (pixel) * 257;
1537 void
1538 x_query_color (f, color)
1539 struct frame *f;
1540 XColor *color;
1542 x_query_colors (f, color, 1);
1546 /* Set up the foreground color for drawing relief lines of glyph
1547 string S. RELIEF is a pointer to a struct relief containing the GC
1548 with which lines will be drawn. Use a color that is FACTOR or
1549 DELTA lighter or darker than the relief's background which is found
1550 in S->f->output_data.x->relief_background. If such a color cannot
1551 be allocated, use DEFAULT_PIXEL, instead. */
1553 static void
1554 w32_setup_relief_color (f, relief, factor, delta, default_pixel)
1555 struct frame *f;
1556 struct relief *relief;
1557 double factor;
1558 int delta;
1559 COLORREF default_pixel;
1561 XGCValues xgcv;
1562 struct w32_output *di = f->output_data.w32;
1563 unsigned long mask = GCForeground;
1564 COLORREF pixel;
1565 COLORREF background = di->relief_background;
1566 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
1568 /* TODO: Free colors (if using palette)? */
1570 /* Allocate new color. */
1571 xgcv.foreground = default_pixel;
1572 pixel = background;
1573 if (w32_alloc_lighter_color (f, &pixel, factor, delta))
1575 relief->allocated_p = 1;
1576 xgcv.foreground = relief->pixel = pixel;
1579 if (relief->gc == 0)
1581 #if 0 /* TODO: stipple */
1582 xgcv.stipple = dpyinfo->gray;
1583 mask |= GCStipple;
1584 #endif
1585 relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
1587 else
1588 XChangeGC (NULL, relief->gc, mask, &xgcv);
1592 /* Set up colors for the relief lines around glyph string S. */
1594 static void
1595 x_setup_relief_colors (s)
1596 struct glyph_string *s;
1598 struct w32_output *di = s->f->output_data.w32;
1599 COLORREF color;
1601 if (s->face->use_box_color_for_shadows_p)
1602 color = s->face->box_color;
1603 else if (s->first_glyph->type == IMAGE_GLYPH
1604 && s->img->pixmap
1605 && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
1606 color = IMAGE_BACKGROUND (s->img, s->f, 0);
1607 else
1608 color = s->gc->background;
1610 if (di->white_relief.gc == 0
1611 || color != di->relief_background)
1613 di->relief_background = color;
1614 w32_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
1615 WHITE_PIX_DEFAULT (s->f));
1616 w32_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
1617 BLACK_PIX_DEFAULT (s->f));
1622 /* Draw a relief on frame F inside the rectangle given by LEFT_X,
1623 TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief
1624 to draw, it must be >= 0. RAISED_P non-zero means draw a raised
1625 relief. LEFT_P non-zero means draw a relief on the left side of
1626 the rectangle. RIGHT_P non-zero means draw a relief on the right
1627 side of the rectangle. CLIP_RECT is the clipping rectangle to use
1628 when drawing. */
1630 static void
1631 w32_draw_relief_rect (f, left_x, top_y, right_x, bottom_y, width,
1632 raised_p, top_p, bot_p, left_p, right_p, clip_rect)
1633 struct frame *f;
1634 int left_x, top_y, right_x, bottom_y, width;
1635 int top_p, bot_p, left_p, right_p, raised_p;
1636 RECT *clip_rect;
1638 int i;
1639 XGCValues gc;
1640 HDC hdc = get_frame_dc (f);
1642 if (raised_p)
1643 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1644 else
1645 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1647 w32_set_clip_rectangle (hdc, clip_rect);
1649 /* Top. */
1650 if (top_p)
1651 for (i = 0; i < width; ++i)
1652 w32_fill_area (f, hdc, gc.foreground,
1653 left_x + i * left_p, top_y + i,
1654 right_x - left_x - i * (left_p + right_p ) + 1, 1);
1656 /* Left. */
1657 if (left_p)
1658 for (i = 0; i < width; ++i)
1659 w32_fill_area (f, hdc, gc.foreground,
1660 left_x + i, top_y + i, 1,
1661 bottom_y - top_y - 2 * i + 1);
1663 if (raised_p)
1664 gc.foreground = f->output_data.w32->black_relief.gc->foreground;
1665 else
1666 gc.foreground = f->output_data.w32->white_relief.gc->foreground;
1668 /* Bottom. */
1669 if (bot_p)
1670 for (i = 0; i < width; ++i)
1671 w32_fill_area (f, hdc, gc.foreground,
1672 left_x + i * left_p, bottom_y - i,
1673 right_x - left_x - i * (left_p + right_p) + 1, 1);
1675 /* Right. */
1676 if (right_p)
1677 for (i = 0; i < width; ++i)
1678 w32_fill_area (f, hdc, gc.foreground,
1679 right_x - i, top_y + i + 1, 1,
1680 bottom_y - top_y - 2 * i - 1);
1682 w32_set_clip_rectangle (hdc, NULL);
1684 release_frame_dc (f, hdc);
1688 /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
1689 RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
1690 draw, it must be >= 0. LEFT_P non-zero means draw a line on the
1691 left side of the rectangle. RIGHT_P non-zero means draw a line
1692 on the right side of the rectangle. CLIP_RECT is the clipping
1693 rectangle to use when drawing. */
1695 static void
1696 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1697 left_p, right_p, clip_rect)
1698 struct glyph_string *s;
1699 int left_x, top_y, right_x, bottom_y, width, left_p, right_p;
1700 RECT *clip_rect;
1702 w32_set_clip_rectangle (s->hdc, clip_rect);
1704 /* Top. */
1705 w32_fill_area (s->f, s->hdc, s->face->box_color,
1706 left_x, top_y, right_x - left_x + 1, width);
1708 /* Left. */
1709 if (left_p)
1711 w32_fill_area (s->f, s->hdc, s->face->box_color,
1712 left_x, top_y, width, bottom_y - top_y + 1);
1715 /* Bottom. */
1716 w32_fill_area (s->f, s->hdc, s->face->box_color,
1717 left_x, bottom_y - width + 1, right_x - left_x + 1, width);
1719 /* Right. */
1720 if (right_p)
1722 w32_fill_area (s->f, s->hdc, s->face->box_color,
1723 right_x - width + 1, top_y, width, bottom_y - top_y + 1);
1726 w32_set_clip_rectangle (s->hdc, NULL);
1730 /* Draw a box around glyph string S. */
1732 static void
1733 x_draw_glyph_string_box (s)
1734 struct glyph_string *s;
1736 int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
1737 int left_p, right_p;
1738 struct glyph *last_glyph;
1739 RECT clip_rect;
1741 last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
1742 ? WINDOW_RIGHT_EDGE_X (s->w)
1743 : window_box_right (s->w, s->area));
1745 /* The glyph that may have a right box line. */
1746 last_glyph = (s->cmp || s->img
1747 ? s->first_glyph
1748 : s->first_glyph + s->nchars - 1);
1750 width = eabs (s->face->box_line_width);
1751 raised_p = s->face->box == FACE_RAISED_BOX;
1752 left_x = s->x;
1753 right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p
1754 ? last_x - 1
1755 : min (last_x, s->x + s->background_width) - 1));
1756 top_y = s->y;
1757 bottom_y = top_y + s->height - 1;
1759 left_p = (s->first_glyph->left_box_line_p
1760 || (s->hl == DRAW_MOUSE_FACE
1761 && (s->prev == NULL
1762 || s->prev->hl != s->hl)));
1763 right_p = (last_glyph->right_box_line_p
1764 || (s->hl == DRAW_MOUSE_FACE
1765 && (s->next == NULL
1766 || s->next->hl != s->hl)));
1768 get_glyph_string_clip_rect (s, &clip_rect);
1770 if (s->face->box == FACE_SIMPLE_BOX)
1771 w32_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
1772 left_p, right_p, &clip_rect);
1773 else
1775 x_setup_relief_colors (s);
1776 w32_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
1777 width, raised_p, 1, 1, left_p, right_p, &clip_rect);
1782 /* Draw foreground of image glyph string S. */
1784 static void
1785 x_draw_image_foreground (s)
1786 struct glyph_string *s;
1788 int x = s->x;
1789 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1791 /* If first glyph of S has a left box line, start drawing it to the
1792 right of that line. */
1793 if (s->face->box != FACE_NO_BOX
1794 && s->first_glyph->left_box_line_p
1795 && s->slice.x == 0)
1796 x += eabs (s->face->box_line_width);
1798 /* If there is a margin around the image, adjust x- and y-position
1799 by that margin. */
1800 if (s->slice.x == 0)
1801 x += s->img->hmargin;
1802 if (s->slice.y == 0)
1803 y += s->img->vmargin;
1805 SaveDC (s->hdc);
1807 if (s->img->pixmap)
1809 HDC compat_hdc = CreateCompatibleDC (s->hdc);
1810 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1811 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
1812 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1813 SetBkColor (compat_hdc, RGB (255, 255, 255));
1814 SetTextColor (s->hdc, RGB (0, 0, 0));
1815 x_set_glyph_string_clipping (s);
1817 if (s->img->mask)
1819 HDC mask_dc = CreateCompatibleDC (s->hdc);
1820 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1822 SetTextColor (s->hdc, RGB (255, 255, 255));
1823 SetBkColor (s->hdc, RGB (0, 0, 0));
1825 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1826 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1827 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1828 mask_dc, s->slice.x, s->slice.y, SRCAND);
1829 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1830 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1832 SelectObject (mask_dc, mask_orig_obj);
1833 DeleteDC (mask_dc);
1835 else
1837 SetTextColor (s->hdc, s->gc->foreground);
1838 SetBkColor (s->hdc, s->gc->background);
1840 BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
1841 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
1843 /* When the image has a mask, we can expect that at
1844 least part of a mouse highlight or a block cursor will
1845 be visible. If the image doesn't have a mask, make
1846 a block cursor visible by drawing a rectangle around
1847 the image. I believe it's looking better if we do
1848 nothing here for mouse-face. */
1849 if (s->hl == DRAW_CURSOR)
1851 int r = s->img->relief;
1852 if (r < 0) r = -r;
1853 w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
1854 s->slice.width + r*2 - 1,
1855 s->slice.height + r*2 - 1);
1859 w32_set_clip_rectangle (s->hdc, NULL);
1860 SelectObject (s->hdc, orig_brush);
1861 DeleteObject (fg_brush);
1862 SelectObject (compat_hdc, orig_obj);
1863 DeleteDC (compat_hdc);
1865 else
1866 w32_draw_rectangle (s->hdc, s->gc, x, y,
1867 s->slice.width - 1, s->slice.height - 1);
1869 RestoreDC (s->hdc ,-1);
1873 /* Draw a relief around the image glyph string S. */
1875 static void
1876 x_draw_image_relief (s)
1877 struct glyph_string *s;
1879 int x0, y0, x1, y1, thick, raised_p;
1880 RECT r;
1881 int x = s->x;
1882 int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
1884 /* If first glyph of S has a left box line, start drawing it to the
1885 right of that line. */
1886 if (s->face->box != FACE_NO_BOX
1887 && s->first_glyph->left_box_line_p
1888 && s->slice.x == 0)
1889 x += eabs (s->face->box_line_width);
1891 /* If there is a margin around the image, adjust x- and y-position
1892 by that margin. */
1893 if (s->slice.x == 0)
1894 x += s->img->hmargin;
1895 if (s->slice.y == 0)
1896 y += s->img->vmargin;
1898 if (s->hl == DRAW_IMAGE_SUNKEN
1899 || s->hl == DRAW_IMAGE_RAISED)
1901 thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
1902 raised_p = s->hl == DRAW_IMAGE_RAISED;
1904 else
1906 thick = eabs (s->img->relief);
1907 raised_p = s->img->relief > 0;
1910 x0 = x - thick;
1911 y0 = y - thick;
1912 x1 = x + s->slice.width + thick - 1;
1913 y1 = y + s->slice.height + thick - 1;
1915 x_setup_relief_colors (s);
1916 get_glyph_string_clip_rect (s, &r);
1917 w32_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p,
1918 s->slice.y == 0,
1919 s->slice.y + s->slice.height == s->img->height,
1920 s->slice.x == 0,
1921 s->slice.x + s->slice.width == s->img->width,
1922 &r);
1926 /* Draw the foreground of image glyph string S to PIXMAP. */
1928 static void
1929 w32_draw_image_foreground_1 (s, pixmap)
1930 struct glyph_string *s;
1931 HBITMAP pixmap;
1933 HDC hdc = CreateCompatibleDC (s->hdc);
1934 HGDIOBJ orig_hdc_obj = SelectObject (hdc, pixmap);
1935 int x = 0;
1936 int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice);
1938 /* If first glyph of S has a left box line, start drawing it to the
1939 right of that line. */
1940 if (s->face->box != FACE_NO_BOX
1941 && s->first_glyph->left_box_line_p
1942 && s->slice.x == 0)
1943 x += eabs (s->face->box_line_width);
1945 /* If there is a margin around the image, adjust x- and y-position
1946 by that margin. */
1947 if (s->slice.x == 0)
1948 x += s->img->hmargin;
1949 if (s->slice.y == 0)
1950 y += s->img->vmargin;
1952 if (s->img->pixmap)
1954 HDC compat_hdc = CreateCompatibleDC (hdc);
1955 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
1956 HBRUSH orig_brush = SelectObject (hdc, fg_brush);
1957 HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
1959 if (s->img->mask)
1961 HDC mask_dc = CreateCompatibleDC (hdc);
1962 HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
1964 SetTextColor (hdc, RGB (0, 0, 0));
1965 SetBkColor (hdc, RGB (255, 255, 255));
1966 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1967 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1968 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1969 mask_dc, s->slice.x, s->slice.y, SRCAND);
1970 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1971 compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
1973 SelectObject (mask_dc, mask_orig_obj);
1974 DeleteDC (mask_dc);
1976 else
1978 SetTextColor (hdc, s->gc->foreground);
1979 SetBkColor (hdc, s->gc->background);
1981 BitBlt (hdc, x, y, s->slice.width, s->slice.height,
1982 compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
1984 /* When the image has a mask, we can expect that at
1985 least part of a mouse highlight or a block cursor will
1986 be visible. If the image doesn't have a mask, make
1987 a block cursor visible by drawing a rectangle around
1988 the image. I believe it's looking better if we do
1989 nothing here for mouse-face. */
1990 if (s->hl == DRAW_CURSOR)
1992 int r = s->img->relief;
1993 if (r < 0) r = -r;
1994 w32_draw_rectangle (hdc, s->gc, x - r, y - r,
1995 s->slice.width + r*2 - 1,
1996 s->slice.height + r*2 - 1);
2000 SelectObject (hdc, orig_brush);
2001 DeleteObject (fg_brush);
2002 SelectObject (compat_hdc, orig_obj);
2003 DeleteDC (compat_hdc);
2005 else
2006 w32_draw_rectangle (hdc, s->gc, x, y,
2007 s->slice.width - 1, s->slice.height - 1);
2009 SelectObject (hdc, orig_hdc_obj);
2010 DeleteDC (hdc);
2014 /* Draw part of the background of glyph string S. X, Y, W, and H
2015 give the rectangle to draw. */
2017 static void
2018 x_draw_glyph_string_bg_rect (s, x, y, w, h)
2019 struct glyph_string *s;
2020 int x, y, w, h;
2022 #if 0 /* TODO: stipple */
2023 if (s->stippled_p)
2025 /* Fill background with a stipple pattern. */
2026 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2027 XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
2028 XSetFillStyle (s->display, s->gc, FillSolid);
2030 else
2031 #endif
2032 x_clear_glyph_string_rect (s, x, y, w, h);
2036 /* Draw image glyph string S.
2038 s->y
2039 s->x +-------------------------
2040 | s->face->box
2042 | +-------------------------
2043 | | s->img->vmargin
2045 | | +-------------------
2046 | | | the image
2050 static void
2051 x_draw_image_glyph_string (s)
2052 struct glyph_string *s;
2054 int x, y;
2055 int box_line_hwidth = eabs (s->face->box_line_width);
2056 int box_line_vwidth = max (s->face->box_line_width, 0);
2057 int height;
2058 HBITMAP pixmap = 0;
2060 height = s->height - 2 * box_line_vwidth;
2062 /* Fill background with face under the image. Do it only if row is
2063 taller than image or if image has a clip mask to reduce
2064 flickering. */
2065 s->stippled_p = s->face->stipple != 0;
2066 if (height > s->slice.height
2067 || s->img->hmargin
2068 || s->img->vmargin
2069 || s->img->mask
2070 || s->img->pixmap == 0
2071 || s->width != s->background_width)
2073 x = s->x;
2074 if (s->first_glyph->left_box_line_p
2075 && s->slice.x == 0)
2076 x += box_line_hwidth;
2078 y = s->y;
2079 if (s->slice.y == 0)
2080 y += box_line_vwidth;
2082 #if 0 /* TODO: figure out if we need to do this on Windows. */
2083 if (s->img->mask)
2085 /* Create a pixmap as large as the glyph string. Fill it
2086 with the background color. Copy the image to it, using
2087 its mask. Copy the temporary pixmap to the display. */
2088 Screen *screen = FRAME_X_SCREEN (s->f);
2089 int depth = DefaultDepthOfScreen (screen);
2091 /* Create a pixmap as large as the glyph string. */
2092 pixmap = XCreatePixmap (s->display, s->window,
2093 s->background_width,
2094 s->height, depth);
2096 /* Don't clip in the following because we're working on the
2097 pixmap. */
2098 XSetClipMask (s->display, s->gc, None);
2100 /* Fill the pixmap with the background color/stipple. */
2101 if (s->stippled_p)
2103 /* Fill background with a stipple pattern. */
2104 XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
2105 XFillRectangle (s->display, pixmap, s->gc,
2106 0, 0, s->background_width, s->height);
2107 XSetFillStyle (s->display, s->gc, FillSolid);
2109 else
2111 XGCValues xgcv;
2112 XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
2113 &xgcv);
2114 XSetForeground (s->display, s->gc, xgcv.background);
2115 XFillRectangle (s->display, pixmap, s->gc,
2116 0, 0, s->background_width, s->height);
2117 XSetForeground (s->display, s->gc, xgcv.foreground);
2120 else
2121 #endif
2122 x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
2124 s->background_filled_p = 1;
2127 /* Draw the foreground. */
2128 if (pixmap != 0)
2130 w32_draw_image_foreground_1 (s, pixmap);
2131 x_set_glyph_string_clipping (s);
2133 HDC compat_hdc = CreateCompatibleDC (s->hdc);
2134 HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
2135 HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
2136 HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
2138 SetTextColor (s->hdc, s->gc->foreground);
2139 SetBkColor (s->hdc, s->gc->background);
2140 BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
2141 compat_hdc, 0, 0, SRCCOPY);
2143 SelectObject (s->hdc, orig_brush);
2144 DeleteObject (fg_brush);
2145 SelectObject (compat_hdc, orig_obj);
2146 DeleteDC (compat_hdc);
2148 DeleteObject (pixmap);
2149 pixmap = 0;
2151 else
2152 x_draw_image_foreground (s);
2154 /* If we must draw a relief around the image, do it. */
2155 if (s->img->relief
2156 || s->hl == DRAW_IMAGE_RAISED
2157 || s->hl == DRAW_IMAGE_SUNKEN)
2158 x_draw_image_relief (s);
2162 /* Draw stretch glyph string S. */
2164 static void
2165 x_draw_stretch_glyph_string (s)
2166 struct glyph_string *s;
2168 xassert (s->first_glyph->type == STRETCH_GLYPH);
2170 if (s->hl == DRAW_CURSOR
2171 && !x_stretch_cursor_p)
2173 /* If `x-stretch-block-cursor' is nil, don't draw a block cursor
2174 as wide as the stretch glyph. */
2175 int width, background_width = s->background_width;
2176 int x = s->x, left_x = window_box_left_offset (s->w, TEXT_AREA);
2178 if (x < left_x)
2180 background_width -= left_x - x;
2181 x = left_x;
2183 width = min (FRAME_COLUMN_WIDTH (s->f), background_width);
2185 /* Draw cursor. */
2186 x_draw_glyph_string_bg_rect (s, x, s->y, width, s->height);
2188 /* Clear rest using the GC of the original non-cursor face. */
2189 if (width < background_width)
2191 XGCValues *gc = s->face->gc;
2192 int y = s->y;
2193 int w = background_width - width, h = s->height;
2194 RECT r;
2195 HDC hdc = s->hdc;
2197 x += width;
2198 if (s->row->mouse_face_p
2199 && cursor_in_mouse_face_p (s->w))
2201 x_set_mouse_face_gc (s);
2202 gc = s->gc;
2204 else
2205 gc = s->face->gc;
2207 get_glyph_string_clip_rect (s, &r);
2208 w32_set_clip_rectangle (hdc, &r);
2210 #if 0 /* TODO: stipple */
2211 if (s->face->stipple)
2213 /* Fill background with a stipple pattern. */
2214 XSetFillStyle (s->display, gc, FillOpaqueStippled);
2215 XFillRectangle (s->display, s->window, gc, x, y, w, h);
2216 XSetFillStyle (s->display, gc, FillSolid);
2218 else
2219 #endif
2221 w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
2225 else if (!s->background_filled_p)
2227 int background_width = s->background_width;
2228 int x = s->x, left_x = window_box_left_offset (s->w, TEXT_AREA);
2230 /* Don't draw into left margin, fringe or scrollbar area
2231 except for header line and mode line. */
2232 if (x < left_x && !s->row->mode_line_p)
2234 background_width -= left_x - x;
2235 x = left_x;
2237 if (background_width > 0)
2238 x_draw_glyph_string_bg_rect (s, x, s->y, background_width, s->height);
2241 s->background_filled_p = 1;
2245 /* Draw glyph string S. */
2247 static void
2248 x_draw_glyph_string (s)
2249 struct glyph_string *s;
2251 int relief_drawn_p = 0;
2253 /* If S draws into the background of its successor, draw the
2254 background of the successor first so that S can draw into it.
2255 This makes S->next use XDrawString instead of XDrawImageString. */
2256 if (s->next && s->right_overhang && !s->for_overlaps)
2258 int width;
2259 struct glyph_string *next;
2260 for (width = 0, next = s->next;
2261 next && width < s->right_overhang;
2262 width += next->width, next = next->next)
2263 if (next->first_glyph->type != IMAGE_GLYPH)
2265 x_set_glyph_string_gc (next);
2266 x_set_glyph_string_clipping (next);
2267 if (next->first_glyph->type == STRETCH_GLYPH)
2268 x_draw_stretch_glyph_string (next);
2269 else
2270 x_draw_glyph_string_background (next, 1);
2271 next->num_clips = 0;
2275 /* Set up S->gc, set clipping and draw S. */
2276 x_set_glyph_string_gc (s);
2278 /* Draw relief (if any) in advance for char/composition so that the
2279 glyph string can be drawn over it. */
2280 if (!s->for_overlaps
2281 && s->face->box != FACE_NO_BOX
2282 && (s->first_glyph->type == CHAR_GLYPH
2283 || s->first_glyph->type == COMPOSITE_GLYPH))
2286 x_set_glyph_string_clipping (s);
2287 x_draw_glyph_string_background (s, 1);
2288 x_draw_glyph_string_box (s);
2289 x_set_glyph_string_clipping (s);
2290 relief_drawn_p = 1;
2292 else if (!s->clip_head /* draw_glyphs didn't specify a clip mask. */
2293 && !s->clip_tail
2294 && ((s->prev && s->prev->hl != s->hl && s->left_overhang)
2295 || (s->next && s->next->hl != s->hl && s->right_overhang)))
2296 /* We must clip just this glyph. left_overhang part has already
2297 drawn when s->prev was drawn, and right_overhang part will be
2298 drawn later when s->next is drawn. */
2299 x_set_glyph_string_clipping_exactly (s, s);
2300 else
2301 x_set_glyph_string_clipping (s);
2303 switch (s->first_glyph->type)
2305 case IMAGE_GLYPH:
2306 x_draw_image_glyph_string (s);
2307 break;
2309 case STRETCH_GLYPH:
2310 x_draw_stretch_glyph_string (s);
2311 break;
2313 case CHAR_GLYPH:
2314 if (s->for_overlaps)
2315 s->background_filled_p = 1;
2316 else
2317 x_draw_glyph_string_background (s, 0);
2318 x_draw_glyph_string_foreground (s);
2319 break;
2321 case COMPOSITE_GLYPH:
2322 if (s->for_overlaps || (s->cmp_from > 0
2323 && ! s->first_glyph->u.cmp.automatic))
2324 s->background_filled_p = 1;
2325 else
2326 x_draw_glyph_string_background (s, 1);
2327 x_draw_composite_glyph_string_foreground (s);
2328 break;
2330 default:
2331 abort ();
2334 if (!s->for_overlaps)
2336 /* Draw underline. */
2337 if (s->face->underline_p)
2339 unsigned long thickness, position;
2340 int y;
2342 if (s->prev && s->prev->face->underline_p)
2344 /* We use the same underline style as the previous one. */
2345 thickness = s->prev->underline_thickness;
2346 position = s->prev->underline_position;
2348 else
2350 /* Get the underline thickness. Default is 1 pixel. */
2351 if (s->font && s->font->underline_thickness > 0)
2352 thickness = s->font->underline_thickness;
2353 else
2354 thickness = 1;
2355 if (x_underline_at_descent_line)
2356 position = (s->height - thickness) - (s->ybase - s->y);
2357 else
2359 /* Get the underline position. This is the recommended
2360 vertical offset in pixels from the baseline to the top of
2361 the underline. This is a signed value according to the
2362 specs, and its default is
2364 ROUND ((maximum_descent) / 2), with
2365 ROUND (x) = floor (x + 0.5) */
2367 if (x_use_underline_position_properties
2368 && s->font && s->font->underline_position >= 0)
2369 position = s->font->underline_position;
2370 else if (s->font)
2371 position = (s->font->descent + 1) / 2;
2373 position = max (position, underline_minimum_offset);
2375 /* Check the sanity of thickness and position. We should
2376 avoid drawing underline out of the current line area. */
2377 if (s->y + s->height <= s->ybase + position)
2378 position = (s->height - 1) - (s->ybase - s->y);
2379 if (s->y + s->height < s->ybase + position + thickness)
2380 thickness = (s->y + s->height) - (s->ybase + position);
2381 s->underline_thickness = thickness;
2382 s->underline_position =position;
2383 y = s->ybase + position;
2384 if (s->face->underline_defaulted_p)
2386 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2387 y, s->width, 1);
2389 else
2391 w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
2392 y, s->width, 1);
2395 /* Draw overline. */
2396 if (s->face->overline_p)
2398 unsigned long dy = 0, h = 1;
2400 if (s->face->overline_color_defaulted_p)
2402 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
2403 s->y + dy, s->width, h);
2405 else
2407 w32_fill_area (s->f, s->hdc, s->face->overline_color, s->x,
2408 s->y + dy, s->width, h);
2412 /* Draw strike-through. */
2413 if (s->face->strike_through_p
2414 && !FONT_TEXTMETRIC (s->font).tmStruckOut)
2416 unsigned long h = 1;
2417 unsigned long dy = (s->height - h) / 2;
2419 if (s->face->strike_through_color_defaulted_p)
2421 w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
2422 s->width, h);
2424 else
2426 w32_fill_area (s->f, s->hdc, s->face->strike_through_color, s->x,
2427 s->y + dy, s->width, h);
2431 /* Draw relief if not yet drawn. */
2432 if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
2433 x_draw_glyph_string_box (s);
2435 if (s->prev)
2437 struct glyph_string *prev;
2439 for (prev = s->prev; prev; prev = prev->prev)
2440 if (prev->hl != s->hl
2441 && prev->x + prev->width + prev->right_overhang > s->x)
2443 /* As prev was drawn while clipped to its own area, we
2444 must draw the right_overhang part using s->hl now. */
2445 enum draw_glyphs_face save = prev->hl;
2447 prev->hl = s->hl;
2448 x_set_glyph_string_gc (prev);
2449 x_set_glyph_string_clipping_exactly (s, prev);
2450 if (prev->first_glyph->type == CHAR_GLYPH)
2451 x_draw_glyph_string_foreground (prev);
2452 else
2453 x_draw_composite_glyph_string_foreground (prev);
2454 w32_set_clip_rectangle (prev->hdc, NULL);
2455 prev->hl = save;
2456 prev->num_clips = 0;
2460 if (s->next)
2462 struct glyph_string *next;
2464 for (next = s->next; next; next = next->next)
2465 if (next->hl != s->hl
2466 && next->x - next->left_overhang < s->x + s->width)
2468 /* As next will be drawn while clipped to its own area,
2469 we must draw the left_overhang part using s->hl now. */
2470 enum draw_glyphs_face save = next->hl;
2472 next->hl = s->hl;
2473 x_set_glyph_string_gc (next);
2474 x_set_glyph_string_clipping_exactly (s, next);
2475 if (next->first_glyph->type == CHAR_GLYPH)
2476 x_draw_glyph_string_foreground (next);
2477 else
2478 x_draw_composite_glyph_string_foreground (next);
2479 w32_set_clip_rectangle (next->hdc, NULL);
2480 next->hl = save;
2481 next->num_clips = 0;
2486 /* Reset clipping. */
2487 w32_set_clip_rectangle (s->hdc, NULL);
2488 s->num_clips = 0;
2492 /* Shift display to make room for inserted glyphs. */
2494 void
2495 w32_shift_glyphs_for_insert (f, x, y, width, height, shift_by)
2496 struct frame *f;
2497 int x, y, width, height, shift_by;
2499 HDC hdc;
2501 hdc = get_frame_dc (f);
2502 BitBlt (hdc, x + shift_by, y, width, height,
2503 hdc, x, y, SRCCOPY);
2505 release_frame_dc (f, hdc);
2509 /* Delete N glyphs at the nominal cursor position. Not implemented
2510 for X frames. */
2512 static void
2513 x_delete_glyphs (f, n)
2514 struct frame *f;
2515 register int n;
2517 if (! FRAME_W32_P (f))
2518 return;
2520 abort ();
2524 /* Clear entire frame. If updating_frame is non-null, clear that
2525 frame. Otherwise clear the selected frame. */
2527 static void
2528 x_clear_frame (struct frame *f)
2530 if (! FRAME_W32_P (f))
2531 return;
2533 /* Clearing the frame will erase any cursor, so mark them all as no
2534 longer visible. */
2535 mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
2536 output_cursor.hpos = output_cursor.vpos = 0;
2537 output_cursor.x = -1;
2539 /* We don't set the output cursor here because there will always
2540 follow an explicit cursor_to. */
2541 BLOCK_INPUT;
2543 w32_clear_window (f);
2545 /* We have to clear the scroll bars, too. If we have changed
2546 colors or something like that, then they should be notified. */
2547 x_scroll_bar_clear (f);
2549 UNBLOCK_INPUT;
2553 /* Make audible bell. */
2555 static void
2556 w32_ring_bell (struct frame *f)
2558 BLOCK_INPUT;
2560 if (FRAME_W32_P (f) && visible_bell)
2562 int i;
2563 HWND hwnd = FRAME_W32_WINDOW (f);
2565 for (i = 0; i < 5; i++)
2567 FlashWindow (hwnd, TRUE);
2568 Sleep (10);
2570 FlashWindow (hwnd, FALSE);
2572 else
2573 w32_sys_ring_bell (f);
2575 UNBLOCK_INPUT;
2579 /* Specify how many text lines, from the top of the window,
2580 should be affected by insert-lines and delete-lines operations.
2581 This, and those operations, are used only within an update
2582 that is bounded by calls to x_update_begin and x_update_end. */
2584 static void
2585 w32_set_terminal_window (n)
2586 register int n;
2588 /* This function intentionally left blank. */
2592 /***********************************************************************
2593 Line Dance
2594 ***********************************************************************/
2596 /* Perform an insert-lines or delete-lines operation, inserting N
2597 lines or deleting -N lines at vertical position VPOS. */
2599 static void
2600 x_ins_del_lines (f, vpos, n)
2601 struct frame *f;
2602 int vpos, n;
2604 if (! FRAME_W32_P (f))
2605 return;
2607 abort ();
2611 /* Scroll part of the display as described by RUN. */
2613 static void
2614 x_scroll_run (w, run)
2615 struct window *w;
2616 struct run *run;
2618 struct frame *f = XFRAME (w->frame);
2619 int x, y, width, height, from_y, to_y, bottom_y;
2620 HWND hwnd = FRAME_W32_WINDOW (f);
2621 HRGN expect_dirty;
2623 /* Get frame-relative bounding box of the text display area of W,
2624 without mode lines. Include in this box the left and right
2625 fringes of W. */
2626 window_box (w, -1, &x, &y, &width, &height);
2628 from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
2629 to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
2630 bottom_y = y + height;
2632 if (to_y < from_y)
2634 /* Scrolling up. Make sure we don't copy part of the mode
2635 line at the bottom. */
2636 if (from_y + run->height > bottom_y)
2637 height = bottom_y - from_y;
2638 else
2639 height = run->height;
2640 expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
2642 else
2644 /* Scolling down. Make sure we don't copy over the mode line.
2645 at the bottom. */
2646 if (to_y + run->height > bottom_y)
2647 height = bottom_y - to_y;
2648 else
2649 height = run->height;
2650 expect_dirty = CreateRectRgn (x, y, x + width, to_y);
2653 BLOCK_INPUT;
2655 /* Cursor off. Will be switched on again in x_update_window_end. */
2656 updated_window = w;
2657 x_clear_cursor (w);
2660 RECT from;
2661 RECT to;
2662 HRGN dirty = CreateRectRgn (0, 0, 0, 0);
2663 HRGN combined = CreateRectRgn (0, 0, 0, 0);
2665 from.left = to.left = x;
2666 from.right = to.right = x + width;
2667 from.top = from_y;
2668 from.bottom = from_y + height;
2669 to.top = y;
2670 to.bottom = bottom_y;
2672 ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
2673 NULL, SW_INVALIDATE);
2675 /* Combine this with what we expect to be dirty. This covers the
2676 case where not all of the region we expect is actually dirty. */
2677 CombineRgn (combined, dirty, expect_dirty, RGN_OR);
2679 /* If the dirty region is not what we expected, redraw the entire frame. */
2680 if (!EqualRgn (combined, expect_dirty))
2681 SET_FRAME_GARBAGED (f);
2683 DeleteObject (dirty);
2684 DeleteObject (combined);
2687 UNBLOCK_INPUT;
2688 DeleteObject (expect_dirty);
2693 /***********************************************************************
2694 Exposure Events
2695 ***********************************************************************/
2697 static void
2698 frame_highlight (f)
2699 struct frame *f;
2701 x_update_cursor (f, 1);
2702 x_set_frame_alpha (f);
2705 static void
2706 frame_unhighlight (f)
2707 struct frame *f;
2709 x_update_cursor (f, 1);
2710 x_set_frame_alpha (f);
2713 /* The focus has changed. Update the frames as necessary to reflect
2714 the new situation. Note that we can't change the selected frame
2715 here, because the Lisp code we are interrupting might become confused.
2716 Each event gets marked with the frame in which it occurred, so the
2717 Lisp code can tell when the switch took place by examining the events. */
2719 static void
2720 x_new_focus_frame (dpyinfo, frame)
2721 struct w32_display_info *dpyinfo;
2722 struct frame *frame;
2724 struct frame *old_focus = dpyinfo->w32_focus_frame;
2726 if (frame != dpyinfo->w32_focus_frame)
2728 /* Set this before calling other routines, so that they see
2729 the correct value of w32_focus_frame. */
2730 dpyinfo->w32_focus_frame = frame;
2732 if (old_focus && old_focus->auto_lower)
2733 x_lower_frame (old_focus);
2735 if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
2736 pending_autoraise_frame = dpyinfo->w32_focus_frame;
2737 else
2738 pending_autoraise_frame = 0;
2741 x_frame_rehighlight (dpyinfo);
2745 /* Handle FocusIn and FocusOut state changes for FRAME.
2746 If FRAME has focus and there exists more than one frame, puts
2747 a FOCUS_IN_EVENT into *BUFP. */
2749 static void
2750 x_focus_changed (type, state, dpyinfo, frame, bufp)
2751 int type;
2752 int state;
2753 struct w32_display_info *dpyinfo;
2754 struct frame *frame;
2755 struct input_event *bufp;
2757 if (type == WM_SETFOCUS)
2759 if (dpyinfo->w32_focus_event_frame != frame)
2761 x_new_focus_frame (dpyinfo, frame);
2762 dpyinfo->w32_focus_event_frame = frame;
2764 /* Don't stop displaying the initial startup message
2765 for a switch-frame event we don't need. */
2766 if (NILP (Vterminal_frame)
2767 && CONSP (Vframe_list)
2768 && !NILP (XCDR (Vframe_list)))
2770 bufp->kind = FOCUS_IN_EVENT;
2771 XSETFRAME (bufp->frame_or_window, frame);
2775 frame->output_data.x->focus_state |= state;
2777 /* TODO: IME focus? */
2779 else if (type == WM_KILLFOCUS)
2781 frame->output_data.x->focus_state &= ~state;
2783 if (dpyinfo->w32_focus_event_frame == frame)
2785 dpyinfo->w32_focus_event_frame = 0;
2786 x_new_focus_frame (dpyinfo, 0);
2789 /* TODO: IME focus? */
2794 /* The focus may have changed. Figure out if it is a real focus change,
2795 by checking both FocusIn/Out and Enter/LeaveNotify events.
2797 Returns FOCUS_IN_EVENT event in *BUFP. */
2799 static void
2800 w32_detect_focus_change (dpyinfo, event, bufp)
2801 struct w32_display_info *dpyinfo;
2802 W32Msg *event;
2803 struct input_event *bufp;
2805 struct frame *frame;
2807 frame = x_any_window_to_frame (dpyinfo, event->msg.hwnd);
2808 if (! frame)
2809 return;
2811 /* On w32, this is only called from focus events, so no switch needed. */
2812 x_focus_changed (event->msg.message,
2813 (event->msg.message == WM_KILLFOCUS ?
2814 FOCUS_IMPLICIT : FOCUS_EXPLICIT),
2815 dpyinfo, frame, bufp);
2819 /* Handle an event saying the mouse has moved out of an Emacs frame. */
2821 void
2822 x_mouse_leave (dpyinfo)
2823 struct w32_display_info *dpyinfo;
2825 x_new_focus_frame (dpyinfo, dpyinfo->w32_focus_event_frame);
2828 /* The focus has changed, or we have redirected a frame's focus to
2829 another frame (this happens when a frame uses a surrogate
2830 mini-buffer frame). Shift the highlight as appropriate.
2832 The FRAME argument doesn't necessarily have anything to do with which
2833 frame is being highlighted or un-highlighted; we only use it to find
2834 the appropriate X display info. */
2836 static void
2837 w32_frame_rehighlight (frame)
2838 struct frame *frame;
2840 if (! FRAME_W32_P (frame))
2841 return;
2842 x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
2845 static void
2846 x_frame_rehighlight (dpyinfo)
2847 struct w32_display_info *dpyinfo;
2849 struct frame *old_highlight = dpyinfo->x_highlight_frame;
2851 if (dpyinfo->w32_focus_frame)
2853 dpyinfo->x_highlight_frame
2854 = ((FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
2855 ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
2856 : dpyinfo->w32_focus_frame);
2857 if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
2859 FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame) = Qnil;
2860 dpyinfo->x_highlight_frame = dpyinfo->w32_focus_frame;
2863 else
2864 dpyinfo->x_highlight_frame = 0;
2866 if (dpyinfo->x_highlight_frame != old_highlight)
2868 if (old_highlight)
2869 frame_unhighlight (old_highlight);
2870 if (dpyinfo->x_highlight_frame)
2871 frame_highlight (dpyinfo->x_highlight_frame);
2875 /* Keyboard processing - modifier keys, etc. */
2877 /* Convert a keysym to its name. */
2879 char *
2880 x_get_keysym_name (keysym)
2881 int keysym;
2883 /* Make static so we can always return it */
2884 static char value[100];
2886 BLOCK_INPUT;
2887 GetKeyNameText (keysym, value, 100);
2888 UNBLOCK_INPUT;
2890 return value;
2893 static int
2894 codepage_for_locale (LCID locale)
2896 char cp[20];
2898 if (GetLocaleInfo (locale, LOCALE_IDEFAULTANSICODEPAGE, cp, 20) > 0)
2899 return atoi (cp);
2900 else
2901 return CP_ACP;
2905 /* Mouse clicks and mouse movement. Rah. */
2907 /* Parse a button MESSAGE. The button index is returned in PBUTTON, and
2908 the state in PUP. XBUTTON provides extra information for extended mouse
2909 button messages. Returns FALSE if unable to parse the message. */
2910 BOOL
2911 parse_button (message, xbutton, pbutton, pup)
2912 int message;
2913 int xbutton;
2914 int * pbutton;
2915 int * pup;
2917 int button = 0;
2918 int up = 0;
2920 switch (message)
2922 case WM_LBUTTONDOWN:
2923 button = 0;
2924 up = 0;
2925 break;
2926 case WM_LBUTTONUP:
2927 button = 0;
2928 up = 1;
2929 break;
2930 case WM_MBUTTONDOWN:
2931 if (NILP (Vw32_swap_mouse_buttons))
2932 button = 1;
2933 else
2934 button = 2;
2935 up = 0;
2936 break;
2937 case WM_MBUTTONUP:
2938 if (NILP (Vw32_swap_mouse_buttons))
2939 button = 1;
2940 else
2941 button = 2;
2942 up = 1;
2943 break;
2944 case WM_RBUTTONDOWN:
2945 if (NILP (Vw32_swap_mouse_buttons))
2946 button = 2;
2947 else
2948 button = 1;
2949 up = 0;
2950 break;
2951 case WM_RBUTTONUP:
2952 if (NILP (Vw32_swap_mouse_buttons))
2953 button = 2;
2954 else
2955 button = 1;
2956 up = 1;
2957 break;
2958 case WM_XBUTTONDOWN:
2959 button = xbutton + 2;
2960 up = 0;
2961 break;
2962 case WM_XBUTTONUP:
2963 button = xbutton + 2;
2964 up = 1;
2965 break;
2966 default:
2967 return (FALSE);
2970 if (pup) *pup = up;
2971 if (pbutton) *pbutton = button;
2973 return (TRUE);
2977 /* Prepare a mouse-event in *RESULT for placement in the input queue.
2979 If the event is a button press, then note that we have grabbed
2980 the mouse. */
2982 static Lisp_Object
2983 construct_mouse_click (result, msg, f)
2984 struct input_event *result;
2985 W32Msg *msg;
2986 struct frame *f;
2988 int button;
2989 int up;
2991 parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
2992 &button, &up);
2994 /* Make the event type NO_EVENT; we'll change that when we decide
2995 otherwise. */
2996 result->kind = MOUSE_CLICK_EVENT;
2997 result->code = button;
2998 result->timestamp = msg->msg.time;
2999 result->modifiers = (msg->dwModifiers
3000 | (up
3001 ? up_modifier
3002 : down_modifier));
3004 XSETINT (result->x, LOWORD (msg->msg.lParam));
3005 XSETINT (result->y, HIWORD (msg->msg.lParam));
3006 XSETFRAME (result->frame_or_window, f);
3007 result->arg = Qnil;
3008 return Qnil;
3011 static Lisp_Object
3012 construct_mouse_wheel (result, msg, f)
3013 struct input_event *result;
3014 W32Msg *msg;
3015 struct frame *f;
3017 POINT p;
3018 int delta;
3020 result->kind = msg->msg.message == WM_MOUSEHWHEEL ? HORIZ_WHEEL_EVENT
3021 : WHEEL_EVENT;
3022 result->code = 0;
3023 result->timestamp = msg->msg.time;
3025 /* A WHEEL_DELTA positive value indicates that the wheel was rotated
3026 forward, away from the user (up); a negative value indicates that
3027 the wheel was rotated backward, toward the user (down). */
3028 delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
3030 /* The up and down modifiers indicate if the wheel was rotated up or
3031 down based on WHEEL_DELTA value. */
3032 result->modifiers = (msg->dwModifiers
3033 | ((delta < 0 ) ? down_modifier : up_modifier));
3035 /* With multiple monitors, we can legitimately get negative
3036 coordinates, so cast to short to interpret them correctly. */
3037 p.x = (short) LOWORD (msg->msg.lParam);
3038 p.y = (short) HIWORD (msg->msg.lParam);
3039 ScreenToClient (msg->msg.hwnd, &p);
3040 XSETINT (result->x, p.x);
3041 XSETINT (result->y, p.y);
3042 XSETFRAME (result->frame_or_window, f);
3043 result->arg = Qnil;
3044 return Qnil;
3047 static Lisp_Object
3048 construct_drag_n_drop (result, msg, f)
3049 struct input_event *result;
3050 W32Msg *msg;
3051 struct frame *f;
3053 Lisp_Object files;
3054 Lisp_Object frame;
3055 HDROP hdrop;
3056 POINT p;
3057 WORD num_files;
3058 char *name;
3059 int i, len;
3061 result->kind = DRAG_N_DROP_EVENT;
3062 result->code = 0;
3063 result->timestamp = msg->msg.time;
3064 result->modifiers = msg->dwModifiers;
3066 hdrop = (HDROP) msg->msg.wParam;
3067 DragQueryPoint (hdrop, &p);
3069 #if 0
3070 p.x = LOWORD (msg->msg.lParam);
3071 p.y = HIWORD (msg->msg.lParam);
3072 ScreenToClient (msg->msg.hwnd, &p);
3073 #endif
3075 XSETINT (result->x, p.x);
3076 XSETINT (result->y, p.y);
3078 num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
3079 files = Qnil;
3081 for (i = 0; i < num_files; i++)
3083 len = DragQueryFile (hdrop, i, NULL, 0);
3084 if (len <= 0)
3085 continue;
3086 name = alloca (len + 1);
3087 DragQueryFile (hdrop, i, name, len + 1);
3088 files = Fcons (DECODE_FILE (build_string (name)), files);
3091 DragFinish (hdrop);
3093 XSETFRAME (frame, f);
3094 result->frame_or_window = frame;
3095 result->arg = files;
3096 return Qnil;
3100 /* Function to report a mouse movement to the mainstream Emacs code.
3101 The input handler calls this.
3103 We have received a mouse movement event, which is given in *event.
3104 If the mouse is over a different glyph than it was last time, tell
3105 the mainstream emacs code by setting mouse_moved. If not, ask for
3106 another motion event, so we can check again the next time it moves. */
3108 static MSG last_mouse_motion_event;
3109 static Lisp_Object last_mouse_motion_frame;
3111 static int
3112 note_mouse_movement (frame, msg)
3113 FRAME_PTR frame;
3114 MSG *msg;
3116 int mouse_x = LOWORD (msg->lParam);
3117 int mouse_y = HIWORD (msg->lParam);
3119 last_mouse_movement_time = msg->time;
3120 memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
3121 XSETFRAME (last_mouse_motion_frame, frame);
3123 if (!FRAME_X_OUTPUT (frame))
3124 return 0;
3126 if (msg->hwnd != FRAME_W32_WINDOW (frame))
3128 frame->mouse_moved = 1;
3129 last_mouse_scroll_bar = Qnil;
3130 note_mouse_highlight (frame, -1, -1);
3131 last_mouse_glyph_frame = 0;
3132 return 1;
3135 /* Has the mouse moved off the glyph it was on at the last sighting? */
3136 if (frame != last_mouse_glyph_frame
3137 || mouse_x < last_mouse_glyph.left
3138 || mouse_x >= last_mouse_glyph.right
3139 || mouse_y < last_mouse_glyph.top
3140 || mouse_y >= last_mouse_glyph.bottom)
3142 frame->mouse_moved = 1;
3143 last_mouse_scroll_bar = Qnil;
3144 note_mouse_highlight (frame, mouse_x, mouse_y);
3145 /* Remember the mouse position here, as w32_mouse_position only
3146 gets called when mouse tracking is enabled but we also need
3147 to keep track of the mouse for help_echo and highlighting at
3148 other times. */
3149 remember_mouse_glyph (frame, mouse_x, mouse_y, &last_mouse_glyph);
3150 last_mouse_glyph_frame = frame;
3151 return 1;
3154 return 0;
3158 /************************************************************************
3159 Mouse Face
3160 ************************************************************************/
3162 static struct scroll_bar *x_window_to_scroll_bar ();
3163 static void x_scroll_bar_report_motion ();
3164 static void x_check_fullscreen P_ ((struct frame *));
3166 static void
3167 redo_mouse_highlight ()
3169 if (!NILP (last_mouse_motion_frame)
3170 && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame)))
3171 note_mouse_highlight (XFRAME (last_mouse_motion_frame),
3172 LOWORD (last_mouse_motion_event.lParam),
3173 HIWORD (last_mouse_motion_event.lParam));
3176 static void
3177 w32_define_cursor (window, cursor)
3178 Window window;
3179 Cursor cursor;
3181 PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
3183 /* Return the current position of the mouse.
3184 *fp should be a frame which indicates which display to ask about.
3186 If the mouse movement started in a scroll bar, set *fp, *bar_window,
3187 and *part to the frame, window, and scroll bar part that the mouse
3188 is over. Set *x and *y to the portion and whole of the mouse's
3189 position on the scroll bar.
3191 If the mouse movement started elsewhere, set *fp to the frame the
3192 mouse is on, *bar_window to nil, and *x and *y to the character cell
3193 the mouse is over.
3195 Set *time to the server time-stamp for the time at which the mouse
3196 was at this position.
3198 Don't store anything if we don't have a valid set of values to report.
3200 This clears the mouse_moved flag, so we can wait for the next mouse
3201 movement. */
3203 static void
3204 w32_mouse_position (fp, insist, bar_window, part, x, y, time)
3205 FRAME_PTR *fp;
3206 int insist;
3207 Lisp_Object *bar_window;
3208 enum scroll_bar_part *part;
3209 Lisp_Object *x, *y;
3210 unsigned long *time;
3212 FRAME_PTR f1;
3214 BLOCK_INPUT;
3216 if (! NILP (last_mouse_scroll_bar) && insist == 0)
3217 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time);
3218 else
3220 POINT pt;
3222 Lisp_Object frame, tail;
3224 /* Clear the mouse-moved flag for every frame on this display. */
3225 FOR_EACH_FRAME (tail, frame)
3226 XFRAME (frame)->mouse_moved = 0;
3228 last_mouse_scroll_bar = Qnil;
3230 GetCursorPos (&pt);
3232 /* Now we have a position on the root; find the innermost window
3233 containing the pointer. */
3235 if (FRAME_W32_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame
3236 && FRAME_LIVE_P (last_mouse_frame))
3238 /* If mouse was grabbed on a frame, give coords for that frame
3239 even if the mouse is now outside it. */
3240 f1 = last_mouse_frame;
3242 else
3244 /* Is window under mouse one of our frames? */
3245 f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
3246 WindowFromPoint (pt));
3249 /* If not, is it one of our scroll bars? */
3250 if (! f1)
3252 struct scroll_bar *bar
3253 = x_window_to_scroll_bar (WindowFromPoint (pt));
3255 if (bar)
3257 f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3261 if (f1 == 0 && insist > 0)
3262 f1 = SELECTED_FRAME ();
3264 if (f1)
3266 /* Ok, we found a frame. Store all the values.
3267 last_mouse_glyph is a rectangle used to reduce the
3268 generation of mouse events. To not miss any motion
3269 events, we must divide the frame into rectangles of the
3270 size of the smallest character that could be displayed
3271 on it, i.e. into the same rectangles that matrices on
3272 the frame are divided into. */
3274 ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
3275 remember_mouse_glyph (f1, pt.x, pt.y, &last_mouse_glyph);
3276 last_mouse_glyph_frame = f1;
3278 *bar_window = Qnil;
3279 *part = 0;
3280 *fp = f1;
3281 XSETINT (*x, pt.x);
3282 XSETINT (*y, pt.y);
3283 *time = last_mouse_movement_time;
3288 UNBLOCK_INPUT;
3292 /***********************************************************************
3293 Tool-bars
3294 ***********************************************************************/
3296 /* Handle mouse button event on the tool-bar of frame F, at
3297 frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress
3298 or ButtonRelase. */
3300 static void
3301 w32_handle_tool_bar_click (f, button_event)
3302 struct frame *f;
3303 struct input_event *button_event;
3305 int x = XFASTINT (button_event->x);
3306 int y = XFASTINT (button_event->y);
3308 if (button_event->modifiers & down_modifier)
3309 handle_tool_bar_click (f, x, y, 1, 0);
3310 else
3311 handle_tool_bar_click (f, x, y, 0,
3312 button_event->modifiers & ~up_modifier);
3317 /***********************************************************************
3318 Scroll bars
3319 ***********************************************************************/
3321 /* Scroll bar support. */
3323 /* Given a window ID, find the struct scroll_bar which manages it.
3324 This can be called in GC, so we have to make sure to strip off mark
3325 bits. */
3327 static struct scroll_bar *
3328 x_window_to_scroll_bar (window_id)
3329 Window window_id;
3331 Lisp_Object tail;
3333 for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
3335 Lisp_Object frame, bar, condemned;
3337 frame = XCAR (tail);
3338 /* All elements of Vframe_list should be frames. */
3339 if (! FRAMEP (frame))
3340 abort ();
3342 /* Scan this frame's scroll bar list for a scroll bar with the
3343 right window ID. */
3344 condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
3345 for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
3346 /* This trick allows us to search both the ordinary and
3347 condemned scroll bar lists with one loop. */
3348 ! NILP (bar) || (bar = condemned,
3349 condemned = Qnil,
3350 ! NILP (bar));
3351 bar = XSCROLL_BAR (bar)->next)
3352 if (SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
3353 return XSCROLL_BAR (bar);
3356 return 0;
3361 /* Set the thumb size and position of scroll bar BAR. We are currently
3362 displaying PORTION out of a whole WHOLE, and our position POSITION. */
3364 static void
3365 w32_set_scroll_bar_thumb (bar, portion, position, whole)
3366 struct scroll_bar *bar;
3367 int portion, position, whole;
3369 Window w = SCROLL_BAR_W32_WINDOW (bar);
3370 /* We use the whole scroll-bar height in the calculations below, to
3371 avoid strange effects like scrolling backwards when just clicking
3372 on the handle (without moving it). */
3373 double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height))
3374 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3375 int sb_page, sb_pos;
3376 BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
3377 SCROLLINFO si;
3379 /* We used to change the nPage setting while dragging the handle,
3380 but that had very strange effects (such as scrolling backwards
3381 while dragging downwards).
3383 Now, we don't change the nPage setting while dragging unless we
3384 get near to the end of the buffer, in which case we often have to
3385 resize the handle to "go all the way". */
3387 if (draggingp)
3389 int near_bottom_p;
3390 BLOCK_INPUT;
3391 si.cbSize = sizeof (si);
3392 si.fMask = SIF_POS | SIF_PAGE;
3393 GetScrollInfo (w, SB_CTL, &si);
3394 near_bottom_p = si.nPos + si.nPage >= range;
3395 UNBLOCK_INPUT;
3396 if (!near_bottom_p)
3397 return;
3400 if (whole)
3402 /* Position scroll bar at rock bottom if the bottom of the
3403 buffer is visible. This avoids shinking the thumb away
3404 to nothing if it is held at the bottom of the buffer. */
3405 if (position + portion >= whole && !draggingp)
3407 sb_page = range * (whole - position) / whole;
3408 sb_pos = range;
3410 else
3412 sb_pos = position * range / whole;
3413 sb_page = (min (portion, (whole - position)) * range) / whole;
3416 else
3418 sb_page = range;
3419 sb_pos = 0;
3422 sb_page = max (sb_page, VERTICAL_SCROLL_BAR_MIN_HANDLE);
3424 BLOCK_INPUT;
3426 si.cbSize = sizeof (si);
3427 si.fMask = SIF_PAGE | SIF_POS;
3428 si.nPage = sb_page;
3429 si.nPos = sb_pos;
3431 SetScrollInfo (w, SB_CTL, &si, TRUE);
3433 UNBLOCK_INPUT;
3437 /************************************************************************
3438 Scroll bars, general
3439 ************************************************************************/
3441 static HWND
3442 my_create_scrollbar (f, bar)
3443 struct frame * f;
3444 struct scroll_bar * bar;
3446 return (HWND) SendMessage (FRAME_W32_WINDOW (f),
3447 WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
3448 (LPARAM) bar);
3451 /*#define ATTACH_THREADS*/
3453 static BOOL
3454 my_show_window (FRAME_PTR f, HWND hwnd, int how)
3456 #ifndef ATTACH_THREADS
3457 return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
3458 (WPARAM) hwnd, (LPARAM) how);
3459 #else
3460 return ShowWindow (hwnd, how);
3461 #endif
3464 static void
3465 my_set_window_pos (HWND hwnd, HWND hwndAfter,
3466 int x, int y, int cx, int cy, UINT flags)
3468 #ifndef ATTACH_THREADS
3469 WINDOWPOS pos;
3470 pos.hwndInsertAfter = hwndAfter;
3471 pos.x = x;
3472 pos.y = y;
3473 pos.cx = cx;
3474 pos.cy = cy;
3475 pos.flags = flags;
3476 SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
3477 #else
3478 SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
3479 #endif
3482 static void
3483 my_set_focus (f, hwnd)
3484 struct frame * f;
3485 HWND hwnd;
3487 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
3488 (WPARAM) hwnd, 0);
3491 static void
3492 my_set_foreground_window (hwnd)
3493 HWND hwnd;
3495 SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
3499 static void
3500 my_destroy_window (f, hwnd)
3501 struct frame * f;
3502 HWND hwnd;
3504 SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
3505 (WPARAM) hwnd, 0);
3508 /* Create a scroll bar and return the scroll bar vector for it. W is
3509 the Emacs window on which to create the scroll bar. TOP, LEFT,
3510 WIDTH and HEIGHT are.the pixel coordinates and dimensions of the
3511 scroll bar. */
3513 static struct scroll_bar *
3514 x_scroll_bar_create (w, top, left, width, height)
3515 struct window *w;
3516 int top, left, width, height;
3518 struct frame *f = XFRAME (WINDOW_FRAME (w));
3519 HWND hwnd;
3520 SCROLLINFO si;
3521 struct scroll_bar *bar
3522 = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
3524 BLOCK_INPUT;
3526 XSETWINDOW (bar->window, w);
3527 XSETINT (bar->top, top);
3528 XSETINT (bar->left, left);
3529 XSETINT (bar->width, width);
3530 XSETINT (bar->height, height);
3531 XSETINT (bar->start, 0);
3532 XSETINT (bar->end, 0);
3533 bar->dragging = Qnil;
3534 bar->fringe_extended_p = Qnil;
3536 /* Requires geometry to be set before call to create the real window */
3538 hwnd = my_create_scrollbar (f, bar);
3540 si.cbSize = sizeof (si);
3541 si.fMask = SIF_ALL;
3542 si.nMin = 0;
3543 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3544 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3545 si.nPage = si.nMax;
3546 si.nPos = 0;
3548 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3550 SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
3552 /* Add bar to its frame's list of scroll bars. */
3553 bar->next = FRAME_SCROLL_BARS (f);
3554 bar->prev = Qnil;
3555 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3556 if (! NILP (bar->next))
3557 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3559 UNBLOCK_INPUT;
3561 return bar;
3565 /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
3566 nil. */
3568 static void
3569 x_scroll_bar_remove (bar)
3570 struct scroll_bar *bar;
3572 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3574 BLOCK_INPUT;
3576 /* Destroy the window. */
3577 my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
3579 /* Disassociate this scroll bar from its window. */
3580 XWINDOW (bar->window)->vertical_scroll_bar = Qnil;
3582 UNBLOCK_INPUT;
3585 /* Set the handle of the vertical scroll bar for WINDOW to indicate
3586 that we are displaying PORTION characters out of a total of WHOLE
3587 characters, starting at POSITION. If WINDOW has no scroll bar,
3588 create one. */
3589 static void
3590 w32_set_vertical_scroll_bar (w, portion, whole, position)
3591 struct window *w;
3592 int portion, whole, position;
3594 struct frame *f = XFRAME (w->frame);
3595 struct scroll_bar *bar;
3596 int top, height, left, sb_left, width, sb_width;
3597 int window_y, window_height;
3598 int fringe_extended_p;
3600 /* Get window dimensions. */
3601 window_box (w, -1, 0, &window_y, 0, &window_height);
3602 top = window_y;
3603 width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f);
3604 height = window_height;
3606 /* Compute the left edge of the scroll bar area. */
3607 left = WINDOW_SCROLL_BAR_AREA_X (w);
3609 /* Compute the width of the scroll bar which might be less than
3610 the width of the area reserved for the scroll bar. */
3611 if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0)
3612 sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
3613 else
3614 sb_width = width;
3616 /* Compute the left edge of the scroll bar. */
3617 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
3618 sb_left = left + (WINDOW_RIGHTMOST_P (w) ? width - sb_width : 0);
3619 else
3620 sb_left = left + (WINDOW_LEFTMOST_P (w) ? 0 : width - sb_width);
3622 if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
3623 fringe_extended_p = (WINDOW_LEFTMOST_P (w)
3624 && WINDOW_LEFT_FRINGE_WIDTH (w)
3625 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3626 || WINDOW_LEFT_MARGIN_COLS (w) == 0));
3627 else
3628 fringe_extended_p = (WINDOW_RIGHTMOST_P (w)
3629 && WINDOW_RIGHT_FRINGE_WIDTH (w)
3630 && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
3631 || WINDOW_RIGHT_MARGIN_COLS (w) == 0));
3633 /* Does the scroll bar exist yet? */
3634 if (NILP (w->vertical_scroll_bar))
3636 HDC hdc;
3637 BLOCK_INPUT;
3638 if (width > 0 && height > 0)
3640 hdc = get_frame_dc (f);
3641 if (fringe_extended_p)
3642 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3643 else
3644 w32_clear_area (f, hdc, left, top, width, height);
3645 release_frame_dc (f, hdc);
3647 UNBLOCK_INPUT;
3649 bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
3651 else
3653 /* It may just need to be moved and resized. */
3654 HWND hwnd;
3656 bar = XSCROLL_BAR (w->vertical_scroll_bar);
3657 hwnd = SCROLL_BAR_W32_WINDOW (bar);
3659 /* If already correctly positioned, do nothing. */
3660 if ( XINT (bar->left) == sb_left
3661 && XINT (bar->top) == top
3662 && XINT (bar->width) == sb_width
3663 && XINT (bar->height) == height
3664 && !NILP (bar->fringe_extended_p) == fringe_extended_p )
3666 /* Redraw after clear_frame. */
3667 if (!my_show_window (f, hwnd, SW_NORMAL))
3668 InvalidateRect (hwnd, NULL, FALSE);
3670 else
3672 HDC hdc;
3673 SCROLLINFO si;
3675 BLOCK_INPUT;
3676 if (width && height)
3678 hdc = get_frame_dc (f);
3679 /* Since Windows scroll bars are smaller than the space reserved
3680 for them on the frame, we have to clear "under" them. */
3681 if (fringe_extended_p)
3682 w32_clear_area (f, hdc, sb_left, top, sb_width, height);
3683 else
3684 w32_clear_area (f, hdc, left, top, width, height);
3685 release_frame_dc (f, hdc);
3687 /* Make sure scroll bar is "visible" before moving, to ensure the
3688 area of the parent window now exposed will be refreshed. */
3689 my_show_window (f, hwnd, SW_HIDE);
3690 MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
3691 top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
3692 max (height, 1), TRUE);
3694 si.cbSize = sizeof (si);
3695 si.fMask = SIF_RANGE;
3696 si.nMin = 0;
3697 si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
3698 + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3700 SetScrollInfo (hwnd, SB_CTL, &si, FALSE);
3702 my_show_window (f, hwnd, SW_NORMAL);
3703 /* InvalidateRect (w, NULL, FALSE); */
3705 /* Remember new settings. */
3706 XSETINT (bar->left, sb_left);
3707 XSETINT (bar->top, top);
3708 XSETINT (bar->width, sb_width);
3709 XSETINT (bar->height, height);
3711 UNBLOCK_INPUT;
3714 bar->fringe_extended_p = fringe_extended_p ? Qt : Qnil;
3716 w32_set_scroll_bar_thumb (bar, portion, position, whole);
3718 XSETVECTOR (w->vertical_scroll_bar, bar);
3722 /* The following three hooks are used when we're doing a thorough
3723 redisplay of the frame. We don't explicitly know which scroll bars
3724 are going to be deleted, because keeping track of when windows go
3725 away is a real pain - "Can you say set-window-configuration, boys
3726 and girls?" Instead, we just assert at the beginning of redisplay
3727 that *all* scroll bars are to be removed, and then save a scroll bar
3728 from the fiery pit when we actually redisplay its window. */
3730 /* Arrange for all scroll bars on FRAME to be removed at the next call
3731 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
3732 `*redeem_scroll_bar_hook' is applied to its window before the judgment. */
3734 static void
3735 w32_condemn_scroll_bars (frame)
3736 FRAME_PTR frame;
3738 /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
3739 while (! NILP (FRAME_SCROLL_BARS (frame)))
3741 Lisp_Object bar;
3742 bar = FRAME_SCROLL_BARS (frame);
3743 FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next;
3744 XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
3745 XSCROLL_BAR (bar)->prev = Qnil;
3746 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
3747 XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
3748 FRAME_CONDEMNED_SCROLL_BARS (frame) = bar;
3753 /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
3754 Note that WINDOW isn't necessarily condemned at all. */
3756 static void
3757 w32_redeem_scroll_bar (window)
3758 struct window *window;
3760 struct scroll_bar *bar;
3761 struct frame *f;
3763 /* We can't redeem this window's scroll bar if it doesn't have one. */
3764 if (NILP (window->vertical_scroll_bar))
3765 abort ();
3767 bar = XSCROLL_BAR (window->vertical_scroll_bar);
3769 /* Unlink it from the condemned list. */
3770 f = XFRAME (WINDOW_FRAME (window));
3771 if (NILP (bar->prev))
3773 /* If the prev pointer is nil, it must be the first in one of
3774 the lists. */
3775 if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
3776 /* It's not condemned. Everything's fine. */
3777 return;
3778 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
3779 window->vertical_scroll_bar))
3780 FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next;
3781 else
3782 /* If its prev pointer is nil, it must be at the front of
3783 one or the other! */
3784 abort ();
3786 else
3787 XSCROLL_BAR (bar->prev)->next = bar->next;
3789 if (! NILP (bar->next))
3790 XSCROLL_BAR (bar->next)->prev = bar->prev;
3792 bar->next = FRAME_SCROLL_BARS (f);
3793 bar->prev = Qnil;
3794 XSETVECTOR (FRAME_SCROLL_BARS (f), bar);
3795 if (! NILP (bar->next))
3796 XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
3799 /* Remove all scroll bars on FRAME that haven't been saved since the
3800 last call to `*condemn_scroll_bars_hook'. */
3802 static void
3803 w32_judge_scroll_bars (f)
3804 FRAME_PTR f;
3806 Lisp_Object bar, next;
3808 bar = FRAME_CONDEMNED_SCROLL_BARS (f);
3810 /* Clear out the condemned list now so we won't try to process any
3811 more events on the hapless scroll bars. */
3812 FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil;
3814 for (; ! NILP (bar); bar = next)
3816 struct scroll_bar *b = XSCROLL_BAR (bar);
3818 x_scroll_bar_remove (b);
3820 next = b->next;
3821 b->next = b->prev = Qnil;
3824 /* Now there should be no references to the condemned scroll bars,
3825 and they should get garbage-collected. */
3828 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
3829 is set to something other than NO_EVENT, it is enqueued.
3831 This may be called from a signal handler, so we have to ignore GC
3832 mark bits. */
3834 static int
3835 w32_scroll_bar_handle_click (bar, msg, emacs_event)
3836 struct scroll_bar *bar;
3837 W32Msg *msg;
3838 struct input_event *emacs_event;
3840 if (! WINDOWP (bar->window))
3841 abort ();
3843 emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
3844 emacs_event->code = 0;
3845 /* not really meaningful to distinguish up/down */
3846 emacs_event->modifiers = msg->dwModifiers;
3847 emacs_event->frame_or_window = bar->window;
3848 emacs_event->arg = Qnil;
3849 emacs_event->timestamp = msg->msg.time;
3852 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3853 int y;
3854 int dragging = !NILP (bar->dragging);
3855 SCROLLINFO si;
3857 si.cbSize = sizeof (si);
3858 si.fMask = SIF_POS;
3860 GetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
3861 y = si.nPos;
3863 bar->dragging = Qnil;
3866 last_mouse_scroll_bar_pos = msg->msg.wParam;
3868 switch (LOWORD (msg->msg.wParam))
3870 case SB_LINEDOWN:
3871 emacs_event->part = scroll_bar_down_arrow;
3872 break;
3873 case SB_LINEUP:
3874 emacs_event->part = scroll_bar_up_arrow;
3875 break;
3876 case SB_PAGEUP:
3877 emacs_event->part = scroll_bar_above_handle;
3878 break;
3879 case SB_PAGEDOWN:
3880 emacs_event->part = scroll_bar_below_handle;
3881 break;
3882 case SB_TOP:
3883 emacs_event->part = scroll_bar_handle;
3884 y = 0;
3885 break;
3886 case SB_BOTTOM:
3887 emacs_event->part = scroll_bar_handle;
3888 y = top_range;
3889 break;
3890 case SB_THUMBTRACK:
3891 case SB_THUMBPOSITION:
3892 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3893 y = HIWORD (msg->msg.wParam);
3894 bar->dragging = Qt;
3895 emacs_event->part = scroll_bar_handle;
3897 /* "Silently" update current position. */
3899 SCROLLINFO si;
3901 si.cbSize = sizeof (si);
3902 si.fMask = SIF_POS;
3903 si.nPos = y;
3904 /* Remember apparent position (we actually lag behind the real
3905 position, so don't set that directly. */
3906 last_scroll_bar_drag_pos = y;
3908 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
3910 break;
3911 case SB_ENDSCROLL:
3912 /* If this is the end of a drag sequence, then reset the scroll
3913 handle size to normal and do a final redraw. Otherwise do
3914 nothing. */
3915 if (dragging)
3917 SCROLLINFO si;
3918 int start = XINT (bar->start);
3919 int end = XINT (bar->end);
3921 si.cbSize = sizeof (si);
3922 si.fMask = SIF_PAGE | SIF_POS;
3923 si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
3924 si.nPos = last_scroll_bar_drag_pos;
3925 SetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
3927 /* fall through */
3928 default:
3929 emacs_event->kind = NO_EVENT;
3930 return FALSE;
3933 XSETINT (emacs_event->x, y);
3934 XSETINT (emacs_event->y, top_range);
3936 return TRUE;
3940 /* Return information to the user about the current position of the mouse
3941 on the scroll bar. */
3943 static void
3944 x_scroll_bar_report_motion (fp, bar_window, part, x, y, time)
3945 FRAME_PTR *fp;
3946 Lisp_Object *bar_window;
3947 enum scroll_bar_part *part;
3948 Lisp_Object *x, *y;
3949 unsigned long *time;
3951 struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
3952 Window w = SCROLL_BAR_W32_WINDOW (bar);
3953 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
3954 int pos;
3955 int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
3956 SCROLLINFO si;
3958 BLOCK_INPUT;
3960 *fp = f;
3961 *bar_window = bar->window;
3963 si.cbSize = sizeof (si);
3964 si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
3966 GetScrollInfo (w, SB_CTL, &si);
3967 pos = si.nPos;
3968 top_range = si.nMax - si.nPage + 1;
3970 switch (LOWORD (last_mouse_scroll_bar_pos))
3972 case SB_THUMBPOSITION:
3973 case SB_THUMBTRACK:
3974 *part = scroll_bar_handle;
3975 if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
3976 pos = HIWORD (last_mouse_scroll_bar_pos);
3977 break;
3978 case SB_LINEDOWN:
3979 *part = scroll_bar_handle;
3980 pos++;
3981 break;
3982 default:
3983 *part = scroll_bar_handle;
3984 break;
3987 XSETINT (*x, pos);
3988 XSETINT (*y, top_range);
3990 f->mouse_moved = 0;
3991 last_mouse_scroll_bar = Qnil;
3993 *time = last_mouse_movement_time;
3995 UNBLOCK_INPUT;
3999 /* The screen has been cleared so we may have changed foreground or
4000 background colors, and the scroll bars may need to be redrawn.
4001 Clear out the scroll bars, and ask for expose events, so we can
4002 redraw them. */
4004 void
4005 x_scroll_bar_clear (f)
4006 FRAME_PTR f;
4008 Lisp_Object bar;
4010 /* We can have scroll bars even if this is 0,
4011 if we just turned off scroll bar mode.
4012 But in that case we should not clear them. */
4013 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
4014 for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
4015 bar = XSCROLL_BAR (bar)->next)
4017 HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
4018 HDC hdc = GetDC (window);
4019 RECT rect;
4021 /* Hide scroll bar until ready to repaint. x_scroll_bar_move
4022 arranges to refresh the scroll bar if hidden. */
4023 my_show_window (f, window, SW_HIDE);
4025 GetClientRect (window, &rect);
4026 select_palette (f, hdc);
4027 w32_clear_rect (f, hdc, &rect);
4028 deselect_palette (f, hdc);
4030 ReleaseDC (window, hdc);
4035 /* The main W32 event-reading loop - w32_read_socket. */
4037 /* Record the last 100 characters stored
4038 to help debug the loss-of-chars-during-GC problem. */
4040 static int temp_index;
4041 static short temp_buffer[100];
4043 /* Temporarily store lead byte of DBCS input sequences. */
4044 static char dbcs_lead = 0;
4046 /* Read events coming from the W32 shell.
4047 This routine is called by the SIGIO handler.
4048 We return as soon as there are no more events to be read.
4050 We return the number of characters stored into the buffer,
4051 thus pretending to be `read'.
4053 EXPECTED is nonzero if the caller knows input is available.
4055 Some of these messages are reposted back to the message queue since the
4056 system calls the windows proc directly in a context where we cannot return
4057 the data nor can we guarantee the state we are in. So if we dispatch them
4058 we will get into an infinite loop. To prevent this from ever happening we
4059 will set a variable to indicate we are in the read_socket call and indicate
4060 which message we are processing since the windows proc gets called
4061 recursively with different messages by the system.
4065 w32_read_socket (sd, expected, hold_quit)
4066 register int sd;
4067 int expected;
4068 struct input_event *hold_quit;
4070 int count = 0;
4071 int check_visibility = 0;
4072 W32Msg msg;
4073 struct frame *f;
4074 struct w32_display_info *dpyinfo = &one_w32_display_info;
4076 if (interrupt_input_blocked)
4078 interrupt_input_pending = 1;
4079 return -1;
4082 interrupt_input_pending = 0;
4083 BLOCK_INPUT;
4085 /* So people can tell when we have read the available input. */
4086 input_signal_count++;
4088 /* TODO: ghostscript integration. */
4089 while (get_next_msg (&msg, FALSE))
4091 struct input_event inev;
4092 int do_help = 0;
4094 EVENT_INIT (inev);
4095 inev.kind = NO_EVENT;
4096 inev.arg = Qnil;
4098 switch (msg.msg.message)
4100 case WM_EMACS_PAINT:
4101 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4103 if (f)
4105 if (msg.rect.right == msg.rect.left ||
4106 msg.rect.bottom == msg.rect.top)
4108 /* We may get paint messages even though the client
4109 area is clipped - these are not expose events. */
4110 DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
4111 SDATA (f->name)));
4113 else if (f->async_visible != 1)
4115 /* Definitely not obscured, so mark as visible. */
4116 f->async_visible = 1;
4117 f->async_iconified = 0;
4118 SET_FRAME_GARBAGED (f);
4119 DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
4120 SDATA (f->name)));
4122 /* WM_PAINT serves as MapNotify as well, so report
4123 visibility changes properly. */
4124 if (f->iconified)
4126 inev.kind = DEICONIFY_EVENT;
4127 XSETFRAME (inev.frame_or_window, f);
4129 else if (! NILP (Vframe_list)
4130 && ! NILP (XCDR (Vframe_list)))
4131 /* Force a redisplay sooner or later to update the
4132 frame titles in case this is the second frame. */
4133 record_asynch_buffer_change ();
4135 else
4137 HDC hdc = get_frame_dc (f);
4139 /* Erase background again for safety. */
4140 w32_clear_rect (f, hdc, &msg.rect);
4141 release_frame_dc (f, hdc);
4142 expose_frame (f,
4143 msg.rect.left,
4144 msg.rect.top,
4145 msg.rect.right - msg.rect.left,
4146 msg.rect.bottom - msg.rect.top);
4149 break;
4151 case WM_INPUTLANGCHANGE:
4152 /* Generate a language change event. */
4153 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4155 /* lParam contains the input lang ID. Use it to update our
4156 record of the keyboard codepage. */
4157 keyboard_codepage = codepage_for_locale ((LCID)(msg.msg.lParam
4158 & 0xffff));
4160 if (f)
4162 inev.kind = LANGUAGE_CHANGE_EVENT;
4163 XSETFRAME (inev.frame_or_window, f);
4164 inev.code = msg.msg.wParam;
4165 inev.modifiers = msg.msg.lParam & 0xffff;
4167 break;
4169 case WM_KEYDOWN:
4170 case WM_SYSKEYDOWN:
4171 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4173 if (f && !f->iconified)
4175 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4176 && !EQ (f->tool_bar_window, dpyinfo->mouse_face_window))
4178 clear_mouse_face (dpyinfo);
4179 dpyinfo->mouse_face_hidden = 1;
4182 if (temp_index == sizeof temp_buffer / sizeof (short))
4183 temp_index = 0;
4184 temp_buffer[temp_index++] = msg.msg.wParam;
4185 inev.kind = NON_ASCII_KEYSTROKE_EVENT;
4186 inev.code = msg.msg.wParam;
4187 inev.modifiers = msg.dwModifiers;
4188 XSETFRAME (inev.frame_or_window, f);
4189 inev.timestamp = msg.msg.time;
4191 break;
4193 case WM_UNICHAR:
4194 case WM_SYSCHAR:
4195 case WM_CHAR:
4196 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4198 if (f && !f->iconified)
4200 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4201 && !EQ (f->tool_bar_window, dpyinfo->mouse_face_window))
4203 clear_mouse_face (dpyinfo);
4204 dpyinfo->mouse_face_hidden = 1;
4207 if (temp_index == sizeof temp_buffer / sizeof (short))
4208 temp_index = 0;
4209 temp_buffer[temp_index++] = msg.msg.wParam;
4211 inev.modifiers = msg.dwModifiers;
4212 XSETFRAME (inev.frame_or_window, f);
4213 inev.timestamp = msg.msg.time;
4215 if (msg.msg.message == WM_UNICHAR)
4217 inev.code = msg.msg.wParam;
4219 else if (msg.msg.wParam < 256)
4221 wchar_t code;
4222 char dbcs[2];
4223 dbcs[0] = 0;
4224 dbcs[1] = (char) msg.msg.wParam;
4226 if (dbcs_lead)
4228 dbcs[0] = dbcs_lead;
4229 dbcs_lead = 0;
4230 if (!MultiByteToWideChar (keyboard_codepage, 0,
4231 dbcs, 2, &code, 1))
4233 /* Garbage */
4234 DebPrint (("Invalid DBCS sequence: %d %d\n",
4235 dbcs[0], dbcs[1]));
4236 inev.kind = NO_EVENT;
4237 break;
4240 else if (IsDBCSLeadByteEx (keyboard_codepage,
4241 (BYTE) msg.msg.wParam))
4243 dbcs_lead = (char) msg.msg.wParam;
4244 inev.kind = NO_EVENT;
4245 break;
4247 else
4249 if (!MultiByteToWideChar (keyboard_codepage, 0,
4250 &dbcs[1], 1, &code, 1))
4252 /* What to do with garbage? */
4253 DebPrint (("Invalid character: %d\n", dbcs[1]));
4254 inev.kind = NO_EVENT;
4255 break;
4258 inev.code = code;
4260 else
4262 /* Windows shouldn't generate WM_CHAR events above 0xFF
4263 in non-Unicode message handlers. */
4264 DebPrint (("Non-byte WM_CHAR: %d\n", msg.msg.wParam));
4265 inev.kind = NO_EVENT;
4266 break;
4268 inev.kind = inev.code < 128 ? ASCII_KEYSTROKE_EVENT
4269 : MULTIBYTE_CHAR_KEYSTROKE_EVENT;
4271 break;
4273 case WM_APPCOMMAND:
4274 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4276 if (f && !f->iconified)
4278 if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
4279 && !EQ (f->tool_bar_window, dpyinfo->mouse_face_window))
4281 clear_mouse_face (dpyinfo);
4282 dpyinfo->mouse_face_hidden = 1;
4285 if (temp_index == sizeof temp_buffer / sizeof (short))
4286 temp_index = 0;
4287 temp_buffer[temp_index++] = msg.msg.wParam;
4288 inev.kind = MULTIMEDIA_KEY_EVENT;
4289 inev.code = GET_APPCOMMAND_LPARAM (msg.msg.lParam);
4290 inev.modifiers = msg.dwModifiers;
4291 XSETFRAME (inev.frame_or_window, f);
4292 inev.timestamp = msg.msg.time;
4294 break;
4296 case WM_MOUSEMOVE:
4297 /* Ignore non-movement. */
4299 int x = LOWORD (msg.msg.lParam);
4300 int y = HIWORD (msg.msg.lParam);
4301 if (x == last_mousemove_x && y == last_mousemove_y)
4302 break;
4303 last_mousemove_x = x;
4304 last_mousemove_y = y;
4307 previous_help_echo_string = help_echo_string;
4308 help_echo_string = Qnil;
4310 if (dpyinfo->grabbed && last_mouse_frame
4311 && FRAME_LIVE_P (last_mouse_frame))
4312 f = last_mouse_frame;
4313 else
4314 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4316 if (dpyinfo->mouse_face_hidden)
4318 dpyinfo->mouse_face_hidden = 0;
4319 clear_mouse_face (dpyinfo);
4322 if (f)
4324 /* Generate SELECT_WINDOW_EVENTs when needed. */
4325 if (!NILP (Vmouse_autoselect_window))
4327 Lisp_Object window;
4328 int x = LOWORD (msg.msg.lParam);
4329 int y = HIWORD (msg.msg.lParam);
4331 window = window_from_coordinates (f, x, y, 0, 0, 0, 0);
4333 /* Window will be selected only when it is not
4334 selected now and last mouse movement event was
4335 not in it. Minibuffer window will be selected
4336 only when it is active. */
4337 if (WINDOWP (window)
4338 && !EQ (window, last_window)
4339 && !EQ (window, selected_window)
4340 /* For click-to-focus window managers
4341 create event iff we don't leave the
4342 selected frame. */
4343 && (focus_follows_mouse
4344 || (EQ (XWINDOW (window)->frame,
4345 XWINDOW (selected_window)->frame))))
4347 inev.kind = SELECT_WINDOW_EVENT;
4348 inev.frame_or_window = window;
4351 last_window = window;
4353 if (!note_mouse_movement (f, &msg.msg))
4354 help_echo_string = previous_help_echo_string;
4356 else
4358 /* If we move outside the frame, then we're
4359 certainly no longer on any text in the frame. */
4360 clear_mouse_face (dpyinfo);
4363 /* If the contents of the global variable help_echo_string
4364 has changed, generate a HELP_EVENT. */
4365 #if 0 /* The below is an invalid comparison when USE_LISP_UNION_TYPE.
4366 But it was originally changed to this to fix a bug, so I have
4367 not removed it completely in case the bug is still there. */
4368 if (help_echo_string != previous_help_echo_string ||
4369 (!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
4370 #else /* This is what xterm.c does. */
4371 if (!NILP (help_echo_string)
4372 || !NILP (previous_help_echo_string))
4373 do_help = 1;
4374 #endif
4375 break;
4377 case WM_LBUTTONDOWN:
4378 case WM_LBUTTONUP:
4379 case WM_MBUTTONDOWN:
4380 case WM_MBUTTONUP:
4381 case WM_RBUTTONDOWN:
4382 case WM_RBUTTONUP:
4383 case WM_XBUTTONDOWN:
4384 case WM_XBUTTONUP:
4386 /* If we decide we want to generate an event to be seen
4387 by the rest of Emacs, we put it here. */
4388 int tool_bar_p = 0;
4389 int button;
4390 int up;
4392 if (dpyinfo->grabbed && last_mouse_frame
4393 && FRAME_LIVE_P (last_mouse_frame))
4394 f = last_mouse_frame;
4395 else
4396 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4398 if (f)
4400 construct_mouse_click (&inev, &msg, f);
4402 /* Is this in the tool-bar? */
4403 if (WINDOWP (f->tool_bar_window)
4404 && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
4406 Lisp_Object window;
4407 int x = XFASTINT (inev.x);
4408 int y = XFASTINT (inev.y);
4410 window = window_from_coordinates (f, x, y, 0, 0, 0, 1);
4412 if (EQ (window, f->tool_bar_window))
4414 w32_handle_tool_bar_click (f, &inev);
4415 tool_bar_p = 1;
4419 if (tool_bar_p
4420 || (dpyinfo->w32_focus_frame
4421 && f != dpyinfo->w32_focus_frame))
4422 inev.kind = NO_EVENT;
4425 parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
4426 &button, &up);
4428 if (up)
4430 dpyinfo->grabbed &= ~ (1 << button);
4432 else
4434 dpyinfo->grabbed |= (1 << button);
4435 last_mouse_frame = f;
4436 /* Ignore any mouse motion that happened
4437 before this event; any subsequent mouse-movement
4438 Emacs events should reflect only motion after
4439 the ButtonPress. */
4440 if (f != 0)
4441 f->mouse_moved = 0;
4443 if (!tool_bar_p)
4444 last_tool_bar_item = -1;
4446 break;
4449 case WM_MOUSEWHEEL:
4450 case WM_MOUSEHWHEEL:
4452 if (dpyinfo->grabbed && last_mouse_frame
4453 && FRAME_LIVE_P (last_mouse_frame))
4454 f = last_mouse_frame;
4455 else
4456 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4458 if (f)
4461 if (!dpyinfo->w32_focus_frame
4462 || f == dpyinfo->w32_focus_frame)
4464 /* Emit an Emacs wheel-up/down event. */
4465 construct_mouse_wheel (&inev, &msg, f);
4467 /* Ignore any mouse motion that happened before this
4468 event; any subsequent mouse-movement Emacs events
4469 should reflect only motion after the
4470 ButtonPress. */
4471 f->mouse_moved = 0;
4473 last_mouse_frame = f;
4474 last_tool_bar_item = -1;
4476 break;
4478 case WM_DROPFILES:
4479 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4481 if (f)
4482 construct_drag_n_drop (&inev, &msg, f);
4483 break;
4485 case WM_VSCROLL:
4487 struct scroll_bar *bar =
4488 x_window_to_scroll_bar ((HWND)msg.msg.lParam);
4490 if (bar)
4491 w32_scroll_bar_handle_click (bar, &msg, &inev);
4492 break;
4495 case WM_WINDOWPOSCHANGED:
4496 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4497 if (f)
4499 if (f->want_fullscreen & FULLSCREEN_WAIT)
4500 f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH);
4502 check_visibility = 1;
4503 break;
4505 case WM_ACTIVATE:
4506 case WM_ACTIVATEAPP:
4507 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4508 if (f)
4509 x_check_fullscreen (f);
4510 check_visibility = 1;
4511 break;
4513 case WM_MOVE:
4514 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4516 if (f && !f->async_iconified)
4518 int x, y;
4520 x_real_positions (f, &x, &y);
4521 f->left_pos = x;
4522 f->top_pos = y;
4525 check_visibility = 1;
4526 break;
4528 case WM_SHOWWINDOW:
4529 /* wParam non-zero means Window is about to be shown, 0 means
4530 about to be hidden. */
4531 /* Redo the mouse-highlight after the tooltip has gone. */
4532 if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
4534 tip_window = NULL;
4535 redo_mouse_highlight ();
4538 /* If window has been obscured or exposed by another window
4539 being maximised or minimised/restored, then recheck
4540 visibility of all frames. Direct changes to our own
4541 windows get handled by WM_SIZE. */
4542 #if 0
4543 if (msg.msg.lParam != 0)
4544 check_visibility = 1;
4545 else
4547 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4548 f->async_visible = msg.msg.wParam;
4550 #endif
4552 check_visibility = 1;
4553 break;
4555 case WM_SIZE:
4556 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4558 /* Inform lisp of whether frame has been iconified etc. */
4559 if (f)
4561 switch (msg.msg.wParam)
4563 case SIZE_MINIMIZED:
4564 f->async_visible = 0;
4565 f->async_iconified = 1;
4567 inev.kind = ICONIFY_EVENT;
4568 XSETFRAME (inev.frame_or_window, f);
4569 break;
4571 case SIZE_MAXIMIZED:
4572 case SIZE_RESTORED:
4573 f->async_visible = 1;
4574 f->async_iconified = 0;
4576 /* wait_reading_process_output will notice this and update
4577 the frame's display structures. */
4578 SET_FRAME_GARBAGED (f);
4580 if (f->iconified)
4582 int x, y;
4584 /* Reset top and left positions of the Window
4585 here since Windows sends a WM_MOVE message
4586 BEFORE telling us the Window is minimized
4587 when the Window is iconified, with 3000,3000
4588 as the co-ords. */
4589 x_real_positions (f, &x, &y);
4590 f->left_pos = x;
4591 f->top_pos = y;
4593 inev.kind = DEICONIFY_EVENT;
4594 XSETFRAME (inev.frame_or_window, f);
4596 else if (! NILP (Vframe_list)
4597 && ! NILP (XCDR (Vframe_list)))
4598 /* Force a redisplay sooner or later
4599 to update the frame titles
4600 in case this is the second frame. */
4601 record_asynch_buffer_change ();
4602 break;
4606 if (f && !f->async_iconified && msg.msg.wParam != SIZE_MINIMIZED)
4608 RECT rect;
4609 int rows;
4610 int columns;
4611 int width;
4612 int height;
4614 GetClientRect (msg.msg.hwnd, &rect);
4616 height = rect.bottom - rect.top;
4617 width = rect.right - rect.left;
4619 rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
4620 columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
4622 /* TODO: Clip size to the screen dimensions. */
4624 /* Even if the number of character rows and columns has
4625 not changed, the font size may have changed, so we need
4626 to check the pixel dimensions as well. */
4628 if (columns != FRAME_COLS (f)
4629 || rows != FRAME_LINES (f)
4630 || width != FRAME_PIXEL_WIDTH (f)
4631 || height != FRAME_PIXEL_HEIGHT (f))
4633 change_frame_size (f, rows, columns, 0, 1, 0);
4634 SET_FRAME_GARBAGED (f);
4635 cancel_mouse_face (f);
4636 FRAME_PIXEL_WIDTH (f) = width;
4637 FRAME_PIXEL_HEIGHT (f) = height;
4638 f->win_gravity = NorthWestGravity;
4642 check_visibility = 1;
4643 break;
4645 case WM_MOUSELEAVE:
4646 f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
4647 if (f)
4649 if (f == dpyinfo->mouse_face_mouse_frame)
4651 /* If we move outside the frame, then we're
4652 certainly no longer on any text in the frame. */
4653 clear_mouse_face (dpyinfo);
4654 dpyinfo->mouse_face_mouse_frame = 0;
4657 /* Generate a nil HELP_EVENT to cancel a help-echo.
4658 Do it only if there's something to cancel.
4659 Otherwise, the startup message is cleared when
4660 the mouse leaves the frame. */
4661 if (any_help_event_p)
4662 do_help = -1;
4664 break;
4666 case WM_SETFOCUS:
4667 w32_detect_focus_change (dpyinfo, &msg, &inev);
4669 dpyinfo->grabbed = 0;
4670 check_visibility = 1;
4671 break;
4673 case WM_KILLFOCUS:
4674 f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
4676 if (f)
4678 if (f == dpyinfo->w32_focus_event_frame)
4679 dpyinfo->w32_focus_event_frame = 0;
4681 if (f == dpyinfo->w32_focus_frame)
4682 x_new_focus_frame (dpyinfo, 0);
4684 if (f == dpyinfo->mouse_face_mouse_frame)
4686 /* If we move outside the frame, then we're
4687 certainly no longer on any text in the frame. */
4688 clear_mouse_face (dpyinfo);
4689 dpyinfo->mouse_face_mouse_frame = 0;
4692 /* Generate a nil HELP_EVENT to cancel a help-echo.
4693 Do it only if there's something to cancel.
4694 Otherwise, the startup message is cleared when
4695 the mouse leaves the frame. */
4696 if (any_help_event_p)
4697 do_help = -1;
4700 dpyinfo->grabbed = 0;
4701 check_visibility = 1;
4702 break;
4704 case WM_CLOSE:
4705 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4707 if (f)
4709 inev.kind = DELETE_WINDOW_EVENT;
4710 XSETFRAME (inev.frame_or_window, f);
4712 break;
4714 case WM_INITMENU:
4715 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4717 if (f)
4719 inev.kind = MENU_BAR_ACTIVATE_EVENT;
4720 XSETFRAME (inev.frame_or_window, f);
4722 break;
4724 case WM_COMMAND:
4725 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4727 if (f)
4729 extern void menubar_selection_callback
4730 (FRAME_PTR f, void * client_data);
4731 menubar_selection_callback (f, (void *)msg.msg.wParam);
4734 check_visibility = 1;
4735 break;
4737 case WM_DISPLAYCHANGE:
4738 f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
4740 if (f)
4742 dpyinfo->n_cbits = msg.msg.wParam;
4743 DebPrint (("display change: %d %d\n",
4744 (short) LOWORD (msg.msg.lParam),
4745 (short) HIWORD (msg.msg.lParam)));
4748 check_visibility = 1;
4749 break;
4751 default:
4752 /* Check for messages registered at runtime. */
4753 if (msg.msg.message == msh_mousewheel)
4755 /* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
4756 msg.msg.message = WM_MOUSEWHEEL;
4757 prepend_msg (&msg);
4759 break;
4762 if (inev.kind != NO_EVENT)
4764 kbd_buffer_store_event_hold (&inev, hold_quit);
4765 count++;
4768 if (do_help
4769 && !(hold_quit && hold_quit->kind != NO_EVENT))
4771 Lisp_Object frame;
4773 if (f)
4774 XSETFRAME (frame, f);
4775 else
4776 frame = Qnil;
4778 if (do_help > 0)
4780 if (NILP (help_echo_string))
4782 help_echo_object = help_echo_window = Qnil;
4783 help_echo_pos = -1;
4786 any_help_event_p = 1;
4787 gen_help_event (help_echo_string, frame, help_echo_window,
4788 help_echo_object, help_echo_pos);
4790 else
4792 help_echo_string = Qnil;
4793 gen_help_event (Qnil, frame, Qnil, Qnil, 0);
4795 count++;
4799 /* If the focus was just given to an autoraising frame,
4800 raise it now. */
4801 /* ??? This ought to be able to handle more than one such frame. */
4802 if (pending_autoraise_frame)
4804 x_raise_frame (pending_autoraise_frame);
4805 pending_autoraise_frame = 0;
4808 /* Check which frames are still visisble, if we have enqueued any user
4809 events or been notified of events that may affect visibility. We
4810 do this here because there doesn't seem to be any direct
4811 notification from Windows that the visibility of a window has
4812 changed (at least, not in all cases). */
4813 if (count > 0 || check_visibility)
4815 Lisp_Object tail, frame;
4817 FOR_EACH_FRAME (tail, frame)
4819 FRAME_PTR f = XFRAME (frame);
4820 /* The tooltip has been drawn already. Avoid the
4821 SET_FRAME_GARBAGED below. */
4822 if (EQ (frame, tip_frame))
4823 continue;
4825 /* Check "visible" frames and mark each as obscured or not.
4826 Note that async_visible is nonzero for unobscured and
4827 obscured frames, but zero for hidden and iconified frames. */
4828 if (FRAME_W32_P (f) && f->async_visible)
4830 RECT clipbox;
4831 HDC hdc;
4833 enter_crit ();
4834 /* Query clipping rectangle for the entire window area
4835 (GetWindowDC), not just the client portion (GetDC).
4836 Otherwise, the scrollbars and menubar aren't counted as
4837 part of the visible area of the frame, and we may think
4838 the frame is obscured when really a scrollbar is still
4839 visible and gets WM_PAINT messages above. */
4840 hdc = GetWindowDC (FRAME_W32_WINDOW (f));
4841 GetClipBox (hdc, &clipbox);
4842 ReleaseDC (FRAME_W32_WINDOW (f), hdc);
4843 leave_crit ();
4845 if (clipbox.right == clipbox.left
4846 || clipbox.bottom == clipbox.top)
4848 /* Frame has become completely obscured so mark as
4849 such (we do this by setting async_visible to 2 so
4850 that FRAME_VISIBLE_P is still true, but redisplay
4851 will skip it). */
4852 f->async_visible = 2;
4854 if (!FRAME_OBSCURED_P (f))
4856 DebPrint (("frame %p (%s) obscured\n", f,
4857 SDATA (f->name)));
4860 else
4862 /* Frame is not obscured, so mark it as such. */
4863 f->async_visible = 1;
4865 if (FRAME_OBSCURED_P (f))
4867 SET_FRAME_GARBAGED (f);
4868 DebPrint (("obscured frame %p (%s) found to be visible\n", f,
4869 SDATA (f->name)));
4871 /* Force a redisplay sooner or later. */
4872 record_asynch_buffer_change ();
4879 UNBLOCK_INPUT;
4880 return count;
4885 /***********************************************************************
4886 Text Cursor
4887 ***********************************************************************/
4889 /* Set clipping for output in glyph row ROW. W is the window in which
4890 we operate. GC is the graphics context to set clipping in.
4892 ROW may be a text row or, e.g., a mode line. Text rows must be
4893 clipped to the interior of the window dedicated to text display,
4894 mode lines must be clipped to the whole window. */
4896 static void
4897 w32_clip_to_row (w, row, area, hdc)
4898 struct window *w;
4899 struct glyph_row *row;
4900 int area;
4901 HDC hdc;
4903 struct frame *f = XFRAME (WINDOW_FRAME (w));
4904 RECT clip_rect;
4905 int window_x, window_y, window_width;
4907 window_box (w, area, &window_x, &window_y, &window_width, 0);
4909 clip_rect.left = window_x;
4910 clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
4911 clip_rect.top = max (clip_rect.top, window_y);
4912 clip_rect.right = clip_rect.left + window_width;
4913 clip_rect.bottom = clip_rect.top + row->visible_height;
4915 w32_set_clip_rectangle (hdc, &clip_rect);
4919 /* Draw a hollow box cursor on window W in glyph row ROW. */
4921 static void
4922 x_draw_hollow_cursor (w, row)
4923 struct window *w;
4924 struct glyph_row *row;
4926 struct frame *f = XFRAME (WINDOW_FRAME (w));
4927 HDC hdc;
4928 RECT rect;
4929 int left, top, h;
4930 struct glyph *cursor_glyph;
4931 HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
4933 /* Get the glyph the cursor is on. If we can't tell because
4934 the current matrix is invalid or such, give up. */
4935 cursor_glyph = get_phys_cursor_glyph (w);
4936 if (cursor_glyph == NULL)
4937 return;
4939 /* Compute frame-relative coordinates for phys cursor. */
4940 get_phys_cursor_geometry (w, row, cursor_glyph, &left, &top, &h);
4941 rect.left = left;
4942 rect.top = top;
4943 rect.bottom = rect.top + h;
4944 rect.right = rect.left + w->phys_cursor_width;
4946 hdc = get_frame_dc (f);
4947 /* Set clipping, draw the rectangle, and reset clipping again. */
4948 w32_clip_to_row (w, row, TEXT_AREA, hdc);
4949 FrameRect (hdc, &rect, hb);
4950 DeleteObject (hb);
4951 w32_set_clip_rectangle (hdc, NULL);
4952 release_frame_dc (f, hdc);
4956 /* Draw a bar cursor on window W in glyph row ROW.
4958 Implementation note: One would like to draw a bar cursor with an
4959 angle equal to the one given by the font property XA_ITALIC_ANGLE.
4960 Unfortunately, I didn't find a font yet that has this property set.
4961 --gerd. */
4963 static void
4964 x_draw_bar_cursor (w, row, width, kind)
4965 struct window *w;
4966 struct glyph_row *row;
4967 int width;
4968 enum text_cursor_kinds kind;
4970 struct frame *f = XFRAME (w->frame);
4971 struct glyph *cursor_glyph;
4973 /* If cursor is out of bounds, don't draw garbage. This can happen
4974 in mini-buffer windows when switching between echo area glyphs
4975 and mini-buffer. */
4976 cursor_glyph = get_phys_cursor_glyph (w);
4977 if (cursor_glyph == NULL)
4978 return;
4980 /* If on an image, draw like a normal cursor. That's usually better
4981 visible than drawing a bar, esp. if the image is large so that
4982 the bar might not be in the window. */
4983 if (cursor_glyph->type == IMAGE_GLYPH)
4985 struct glyph_row *row;
4986 row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
4987 draw_phys_cursor_glyph (w, row, DRAW_CURSOR);
4989 else
4991 COLORREF cursor_color = f->output_data.w32->cursor_pixel;
4992 struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
4993 int x;
4994 HDC hdc;
4996 /* If the glyph's background equals the color we normally draw
4997 the bar cursor in, the bar cursor in its normal color is
4998 invisible. Use the glyph's foreground color instead in this
4999 case, on the assumption that the glyph's colors are chosen so
5000 that the glyph is legible. */
5001 if (face->background == cursor_color)
5002 cursor_color = face->foreground;
5004 x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5006 hdc = get_frame_dc (f);
5007 w32_clip_to_row (w, row, TEXT_AREA, hdc);
5009 if (kind == BAR_CURSOR)
5011 if (width < 0)
5012 width = FRAME_CURSOR_WIDTH (f);
5013 width = min (cursor_glyph->pixel_width, width);
5015 w->phys_cursor_width = width;
5017 w32_fill_area (f, hdc, cursor_color, x,
5018 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
5019 width, row->height);
5021 else
5023 int dummy_x, dummy_y, dummy_h;
5025 if (width < 0)
5026 width = row->height;
5028 width = min (row->height, width);
5030 get_phys_cursor_geometry (w, row, cursor_glyph, &dummy_x,
5031 &dummy_y, &dummy_h);
5032 w32_fill_area (f, hdc, cursor_color, x,
5033 WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
5034 row->height - width),
5035 w->phys_cursor_width, width);
5038 w32_set_clip_rectangle (hdc, NULL);
5039 release_frame_dc (f, hdc);
5044 /* RIF: Define cursor CURSOR on frame F. */
5046 static void
5047 w32_define_frame_cursor (f, cursor)
5048 struct frame *f;
5049 Cursor cursor;
5051 w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
5055 /* RIF: Clear area on frame F. */
5057 static void
5058 w32_clear_frame_area (f, x, y, width, height)
5059 struct frame *f;
5060 int x, y, width, height;
5062 HDC hdc;
5064 hdc = get_frame_dc (f);
5065 w32_clear_area (f, hdc, x, y, width, height);
5066 release_frame_dc (f, hdc);
5069 /* RIF: Draw or clear cursor on window W. */
5071 static void
5072 w32_draw_window_cursor (w, glyph_row, x, y, cursor_type, cursor_width, on_p, active_p)
5073 struct window *w;
5074 struct glyph_row *glyph_row;
5075 int x, y;
5076 int cursor_type, cursor_width;
5077 int on_p, active_p;
5079 if (on_p)
5081 /* If the user wants to use the system caret, make sure our own
5082 cursor remains invisible. */
5083 if (w32_use_visible_system_caret)
5085 /* Call to erase_phys_cursor here seems to use the
5086 wrong values of w->phys_cursor, as they have been
5087 overwritten before this function was called. */
5088 if (w->phys_cursor_type != NO_CURSOR)
5089 erase_phys_cursor (w);
5091 cursor_type = w->phys_cursor_type = NO_CURSOR;
5092 w->phys_cursor_width = -1;
5094 else
5096 w->phys_cursor_type = cursor_type;
5099 w->phys_cursor_on_p = 1;
5101 /* If this is the active cursor, we need to track it with the
5102 system caret, so third party software like screen magnifiers
5103 and speech synthesizers can follow the cursor. */
5104 if (active_p)
5106 struct frame *f = XFRAME (WINDOW_FRAME (w));
5107 HWND hwnd = FRAME_W32_WINDOW (f);
5109 w32_system_caret_x
5110 = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
5111 w32_system_caret_y
5112 = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
5113 + glyph_row->ascent - w->phys_cursor_ascent);
5115 PostMessage (hwnd, WM_IME_STARTCOMPOSITION, 0, 0);
5117 /* If the size of the active cursor changed, destroy the old
5118 system caret. */
5119 if (w32_system_caret_hwnd
5120 && (w32_system_caret_height != w->phys_cursor_height))
5121 PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
5123 w32_system_caret_height = w->phys_cursor_height;
5125 /* Move the system caret. */
5126 PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
5129 if (glyph_row->exact_window_width_line_p
5130 && w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])
5132 glyph_row->cursor_in_fringe_p = 1;
5133 draw_fringe_bitmap (w, glyph_row, 0);
5134 return;
5137 switch (cursor_type)
5139 case HOLLOW_BOX_CURSOR:
5140 x_draw_hollow_cursor (w, glyph_row);
5141 break;
5143 case FILLED_BOX_CURSOR:
5144 draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
5145 break;
5147 case BAR_CURSOR:
5148 x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
5149 break;
5151 case HBAR_CURSOR:
5152 x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
5153 break;
5155 case NO_CURSOR:
5156 w->phys_cursor_width = 0;
5157 break;
5159 default:
5160 abort ();
5167 /* Icons. */
5170 x_bitmap_icon (f, icon)
5171 struct frame *f;
5172 Lisp_Object icon;
5174 HANDLE main_icon;
5175 HANDLE small_icon = NULL;
5177 if (FRAME_W32_WINDOW (f) == 0)
5178 return 1;
5180 if (NILP (icon))
5181 main_icon = LoadIcon (hinst, EMACS_CLASS);
5182 else if (STRINGP (icon))
5184 /* Load the main icon from the named file. */
5185 main_icon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
5186 LR_DEFAULTSIZE | LR_LOADFROMFILE);
5187 /* Try to load a small icon to go with it. */
5188 small_icon = LoadImage (NULL, (LPCSTR) SDATA (icon), IMAGE_ICON,
5189 GetSystemMetrics (SM_CXSMICON),
5190 GetSystemMetrics (SM_CYSMICON),
5191 LR_LOADFROMFILE);
5193 else if (SYMBOLP (icon))
5195 LPCTSTR name;
5197 if (EQ (icon, intern ("application")))
5198 name = (LPCTSTR) IDI_APPLICATION;
5199 else if (EQ (icon, intern ("hand")))
5200 name = (LPCTSTR) IDI_HAND;
5201 else if (EQ (icon, intern ("question")))
5202 name = (LPCTSTR) IDI_QUESTION;
5203 else if (EQ (icon, intern ("exclamation")))
5204 name = (LPCTSTR) IDI_EXCLAMATION;
5205 else if (EQ (icon, intern ("asterisk")))
5206 name = (LPCTSTR) IDI_ASTERISK;
5207 else if (EQ (icon, intern ("winlogo")))
5208 name = (LPCTSTR) IDI_WINLOGO;
5209 else
5210 return 1;
5212 main_icon = LoadIcon (NULL, name);
5214 else
5215 return 1;
5217 if (main_icon == NULL)
5218 return 1;
5220 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
5221 (LPARAM) main_icon);
5223 /* If there is a small icon that goes with it, set that too. */
5224 if (small_icon)
5225 PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_SMALL,
5226 (LPARAM) small_icon);
5228 return 0;
5232 /************************************************************************
5233 Handling X errors
5234 ************************************************************************/
5236 /* Display Error Handling functions not used on W32. Listing them here
5237 helps diff stay in step when comparing w32term.c with xterm.c.
5239 x_error_catcher (display, error)
5240 x_catch_errors (dpy)
5241 x_catch_errors_unwind (old_val)
5242 x_check_errors (dpy, format)
5243 x_fully_uncatch_errors ()
5244 x_catching_errors ()
5245 x_had_errors_p (dpy)
5246 x_clear_errors (dpy)
5247 x_uncatch_errors (dpy, count)
5248 x_trace_wire ()
5249 x_connection_signal (signalnum)
5250 x_connection_closed (dpy, error_message)
5251 x_error_quitter (display, error)
5252 x_error_handler (display, error)
5253 x_io_error_quitter (display)
5258 /* Changing the font of the frame. */
5260 Lisp_Object
5261 x_new_font (f, font_object, fontset)
5262 struct frame *f;
5263 Lisp_Object font_object;
5264 int fontset;
5266 struct font *font = XFONT_OBJECT (font_object);
5268 if (fontset < 0)
5269 fontset = fontset_from_font (font_object);
5270 FRAME_FONTSET (f) = fontset;
5271 if (FRAME_FONT (f) == font)
5272 /* This font is already set in frame F. There's nothing more to
5273 do. */
5274 return font_object;
5276 FRAME_FONT (f) = font;
5277 FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
5278 FRAME_COLUMN_WIDTH (f) = font->average_width;
5279 FRAME_SPACE_WIDTH (f) = font->space_width;
5280 FRAME_LINE_HEIGHT (f) = font->height;
5282 compute_fringe_widths (f, 1);
5284 /* Compute the scroll bar width in character columns. */
5285 if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
5287 int wid = FRAME_COLUMN_WIDTH (f);
5288 FRAME_CONFIG_SCROLL_BAR_COLS (f)
5289 = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid - 1) / wid;
5291 else
5293 int wid = FRAME_COLUMN_WIDTH (f);
5294 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid;
5297 /* Now make the frame display the given font. */
5298 if (FRAME_X_WINDOW (f) != 0)
5300 /* Don't change the size of a tip frame; there's no point in
5301 doing it because it's done in Fx_show_tip, and it leads to
5302 problems because the tip frame has no widget. */
5303 if (NILP (tip_frame) || XFRAME (tip_frame) != f)
5304 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
5307 /* X version sets font of input methods here also. */
5309 return font_object;
5313 /***********************************************************************
5314 TODO: W32 Input Methods
5315 ***********************************************************************/
5316 /* Listing missing functions from xterm.c helps diff stay in step.
5318 xim_destroy_callback (xim, client_data, call_data)
5319 xim_open_dpy (dpyinfo, resource_name)
5320 struct xim_inst_t
5321 xim_instantiate_callback (display, client_data, call_data)
5322 xim_initialize (dpyinfo, resource_name)
5323 xim_close_dpy (dpyinfo)
5328 /* Calculate the absolute position in frame F
5329 from its current recorded position values and gravity. */
5331 void
5332 x_calc_absolute_position (f)
5333 struct frame *f;
5335 int flags = f->size_hint_flags;
5337 /* The sum of the widths of the frame's left and right borders, and
5338 the sum of the heights of the frame's top and bottom borders (in
5339 pixels) drawn by Windows. */
5340 unsigned int left_right_borders_width, top_bottom_borders_height;
5342 /* Try to get the actual values of these two variables. We compute
5343 the border width (height) by subtracting the width (height) of
5344 the frame's client area from the width (height) of the frame's
5345 entire window. */
5346 WINDOWPLACEMENT wp = { 0 };
5347 RECT client_rect = { 0 };
5349 if (GetWindowPlacement (FRAME_W32_WINDOW (f), &wp)
5350 && GetClientRect (FRAME_W32_WINDOW (f), &client_rect))
5352 left_right_borders_width =
5353 (wp.rcNormalPosition.right - wp.rcNormalPosition.left) -
5354 (client_rect.right - client_rect.left);
5356 top_bottom_borders_height =
5357 (wp.rcNormalPosition.bottom - wp.rcNormalPosition.top) -
5358 (client_rect.bottom - client_rect.top);
5360 else
5362 /* Use sensible default values. */
5363 left_right_borders_width = 8;
5364 top_bottom_borders_height = 32;
5367 /* Treat negative positions as relative to the rightmost bottommost
5368 position that fits on the screen. */
5369 if (flags & XNegative)
5370 f->left_pos = (x_display_pixel_width (FRAME_W32_DISPLAY_INFO (f))
5371 - FRAME_PIXEL_WIDTH (f)
5372 + f->left_pos
5373 - (left_right_borders_width - 1));
5375 if (flags & YNegative)
5376 f->top_pos = (x_display_pixel_height (FRAME_W32_DISPLAY_INFO (f))
5377 - FRAME_PIXEL_HEIGHT (f)
5378 + f->top_pos
5379 - (top_bottom_borders_height - 1));
5381 /* The left_pos and top_pos are now relative to the top and left
5382 screen edges, so the flags should correspond. */
5383 f->size_hint_flags &= ~ (XNegative | YNegative);
5386 /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
5387 to really change the position, and 0 when calling from
5388 x_make_frame_visible (in that case, XOFF and YOFF are the current
5389 position values). It is -1 when calling from x_set_frame_parameters,
5390 which means, do adjust for borders but don't change the gravity. */
5392 void
5393 x_set_offset (f, xoff, yoff, change_gravity)
5394 struct frame *f;
5395 register int xoff, yoff;
5396 int change_gravity;
5398 int modified_top, modified_left;
5400 if (change_gravity > 0)
5402 f->top_pos = yoff;
5403 f->left_pos = xoff;
5404 f->size_hint_flags &= ~ (XNegative | YNegative);
5405 if (xoff < 0)
5406 f->size_hint_flags |= XNegative;
5407 if (yoff < 0)
5408 f->size_hint_flags |= YNegative;
5409 f->win_gravity = NorthWestGravity;
5411 x_calc_absolute_position (f);
5413 BLOCK_INPUT;
5414 x_wm_set_size_hint (f, (long) 0, 0);
5416 modified_left = f->left_pos;
5417 modified_top = f->top_pos;
5419 my_set_window_pos (FRAME_W32_WINDOW (f),
5420 NULL,
5421 modified_left, modified_top,
5422 0, 0,
5423 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
5424 UNBLOCK_INPUT;
5428 /* Check if we need to resize the frame due to a fullscreen request.
5429 If so needed, resize the frame. */
5430 static void
5431 x_check_fullscreen (f)
5432 struct frame *f;
5434 if (f->want_fullscreen & FULLSCREEN_BOTH)
5436 int width, height, ign;
5438 x_real_positions (f, &f->left_pos, &f->top_pos);
5440 x_fullscreen_adjust (f, &width, &height, &ign, &ign);
5442 /* We do not need to move the window, it shall be taken care of
5443 when setting WM manager hints. */
5444 if (FRAME_COLS (f) != width || FRAME_LINES (f) != height)
5446 change_frame_size (f, height, width, 0, 1, 0);
5447 SET_FRAME_GARBAGED (f);
5448 cancel_mouse_face (f);
5450 /* Wait for the change of frame size to occur */
5451 f->want_fullscreen |= FULLSCREEN_WAIT;
5456 /* Call this to change the size of frame F's x-window.
5457 If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
5458 for this size change and subsequent size changes.
5459 Otherwise we leave the window gravity unchanged. */
5461 void
5462 x_set_window_size (f, change_gravity, cols, rows)
5463 struct frame *f;
5464 int change_gravity;
5465 int cols, rows;
5467 int pixelwidth, pixelheight;
5469 BLOCK_INPUT;
5471 check_frame_size (f, &rows, &cols);
5472 f->scroll_bar_actual_width
5473 = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f);
5475 compute_fringe_widths (f, 0);
5477 pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols);
5478 pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
5480 f->win_gravity = NorthWestGravity;
5481 x_wm_set_size_hint (f, (long) 0, 0);
5484 RECT rect;
5486 rect.left = rect.top = 0;
5487 rect.right = pixelwidth;
5488 rect.bottom = pixelheight;
5490 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
5491 FRAME_EXTERNAL_MENU_BAR (f));
5493 my_set_window_pos (FRAME_W32_WINDOW (f),
5494 NULL,
5495 0, 0,
5496 rect.right - rect.left,
5497 rect.bottom - rect.top,
5498 SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
5501 #if 0
5502 /* The following mirrors what is done in xterm.c. It appears to be
5503 for informing lisp of the new size immediately, while the actual
5504 resize will happen asynchronously. But on Windows, the menu bar
5505 automatically wraps when the frame is too narrow to contain it,
5506 and that causes any calculations made here to come out wrong. The
5507 end is some nasty buggy behavior, including the potential loss
5508 of the minibuffer.
5510 Disabling this code is either not sufficient to fix the problems
5511 completely, or it causes fresh problems, but at least it removes
5512 the most problematic symptom of the minibuffer becoming unusable.
5514 -----------------------------------------------------------------
5516 Now, strictly speaking, we can't be sure that this is accurate,
5517 but the window manager will get around to dealing with the size
5518 change request eventually, and we'll hear how it went when the
5519 ConfigureNotify event gets here.
5521 We could just not bother storing any of this information here,
5522 and let the ConfigureNotify event set everything up, but that
5523 might be kind of confusing to the Lisp code, since size changes
5524 wouldn't be reported in the frame parameters until some random
5525 point in the future when the ConfigureNotify event arrives.
5527 We pass 1 for DELAY since we can't run Lisp code inside of
5528 a BLOCK_INPUT. */
5529 change_frame_size (f, rows, cols, 0, 1, 0);
5530 FRAME_PIXEL_WIDTH (f) = pixelwidth;
5531 FRAME_PIXEL_HEIGHT (f) = pixelheight;
5533 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
5534 receive in the ConfigureNotify event; if we get what we asked
5535 for, then the event won't cause the screen to become garbaged, so
5536 we have to make sure to do it here. */
5537 SET_FRAME_GARBAGED (f);
5539 /* If cursor was outside the new size, mark it as off. */
5540 mark_window_cursors_off (XWINDOW (f->root_window));
5542 /* Clear out any recollection of where the mouse highlighting was,
5543 since it might be in a place that's outside the new frame size.
5544 Actually checking whether it is outside is a pain in the neck,
5545 so don't try--just let the highlighting be done afresh with new size. */
5546 cancel_mouse_face (f);
5547 #endif
5549 UNBLOCK_INPUT;
5552 /* Mouse warping. */
5554 void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
5556 void
5557 x_set_mouse_position (f, x, y)
5558 struct frame *f;
5559 int x, y;
5561 int pix_x, pix_y;
5563 pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
5564 pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
5566 if (pix_x < 0) pix_x = 0;
5567 if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
5569 if (pix_y < 0) pix_y = 0;
5570 if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
5572 x_set_mouse_pixel_position (f, pix_x, pix_y);
5575 void
5576 x_set_mouse_pixel_position (f, pix_x, pix_y)
5577 struct frame *f;
5578 int pix_x, pix_y;
5580 RECT rect;
5581 POINT pt;
5583 BLOCK_INPUT;
5585 GetClientRect (FRAME_W32_WINDOW (f), &rect);
5586 pt.x = rect.left + pix_x;
5587 pt.y = rect.top + pix_y;
5588 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
5590 SetCursorPos (pt.x, pt.y);
5592 UNBLOCK_INPUT;
5596 /* focus shifting, raising and lowering. */
5598 void
5599 x_focus_on_frame (f)
5600 struct frame *f;
5602 struct w32_display_info *dpyinfo = &one_w32_display_info;
5604 /* Give input focus to frame. */
5605 BLOCK_INPUT;
5606 #if 0
5607 /* Try not to change its Z-order if possible. */
5608 if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
5609 my_set_focus (f, FRAME_W32_WINDOW (f));
5610 else
5611 #endif
5612 my_set_foreground_window (FRAME_W32_WINDOW (f));
5613 UNBLOCK_INPUT;
5616 void
5617 x_unfocus_frame (f)
5618 struct frame *f;
5622 /* Raise frame F. */
5623 void
5624 x_raise_frame (f)
5625 struct frame *f;
5627 BLOCK_INPUT;
5629 /* Strictly speaking, raise-frame should only change the frame's Z
5630 order, leaving input focus unchanged. This is reasonable behavior
5631 on X where the usual policy is point-to-focus. However, this
5632 behavior would be very odd on Windows where the usual policy is
5633 click-to-focus.
5635 On X, if the mouse happens to be over the raised frame, it gets
5636 input focus anyway (so the window with focus will never be
5637 completely obscured) - if not, then just moving the mouse over it
5638 is sufficient to give it focus. On Windows, the user must actually
5639 click on the frame (preferrably the title bar so as not to move
5640 point), which is more awkward. Also, no other Windows program
5641 raises a window to the top but leaves another window (possibly now
5642 completely obscured) with input focus.
5644 Because there is a system setting on Windows that allows the user
5645 to choose the point to focus policy, we make the strict semantics
5646 optional, but by default we grab focus when raising. */
5648 if (NILP (Vw32_grab_focus_on_raise))
5650 /* The obvious call to my_set_window_pos doesn't work if Emacs is
5651 not already the foreground application: the frame is raised
5652 above all other frames belonging to us, but not above the
5653 current top window. To achieve that, we have to resort to this
5654 more cumbersome method. */
5656 HDWP handle = BeginDeferWindowPos (2);
5657 if (handle)
5659 DeferWindowPos (handle,
5660 FRAME_W32_WINDOW (f),
5661 HWND_TOP,
5662 0, 0, 0, 0,
5663 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5665 DeferWindowPos (handle,
5666 GetForegroundWindow (),
5667 FRAME_W32_WINDOW (f),
5668 0, 0, 0, 0,
5669 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5671 EndDeferWindowPos (handle);
5674 else
5676 my_set_foreground_window (FRAME_W32_WINDOW (f));
5679 UNBLOCK_INPUT;
5682 /* Lower frame F. */
5683 void
5684 x_lower_frame (f)
5685 struct frame *f;
5687 BLOCK_INPUT;
5688 my_set_window_pos (FRAME_W32_WINDOW (f),
5689 HWND_BOTTOM,
5690 0, 0, 0, 0,
5691 SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
5692 UNBLOCK_INPUT;
5695 static void
5696 w32_frame_raise_lower (f, raise_flag)
5697 FRAME_PTR f;
5698 int raise_flag;
5700 if (! FRAME_W32_P (f))
5701 return;
5703 if (raise_flag)
5704 x_raise_frame (f);
5705 else
5706 x_lower_frame (f);
5709 /* Change of visibility. */
5711 /* This tries to wait until the frame is really visible.
5712 However, if the window manager asks the user where to position
5713 the frame, this will return before the user finishes doing that.
5714 The frame will not actually be visible at that time,
5715 but it will become visible later when the window manager
5716 finishes with it. */
5718 void
5719 x_make_frame_visible (f)
5720 struct frame *f;
5722 Lisp_Object type;
5724 BLOCK_INPUT;
5726 type = x_icon_type (f);
5727 if (!NILP (type))
5728 x_bitmap_icon (f, type);
5730 if (! FRAME_VISIBLE_P (f))
5732 /* We test FRAME_GARBAGED_P here to make sure we don't
5733 call x_set_offset a second time
5734 if we get to x_make_frame_visible a second time
5735 before the window gets really visible. */
5736 if (! FRAME_ICONIFIED_P (f)
5737 && ! f->output_data.w32->asked_for_visible)
5739 RECT workarea_rect;
5740 RECT window_rect;
5742 /* Adjust vertical window position in order to avoid being
5743 covered by a task bar placed at the bottom of the desktop. */
5744 SystemParametersInfo (SPI_GETWORKAREA, 0, &workarea_rect, 0);
5745 GetWindowRect (FRAME_W32_WINDOW (f), &window_rect);
5746 if (window_rect.bottom > workarea_rect.bottom
5747 && window_rect.top > workarea_rect.top)
5748 f->top_pos = max (window_rect.top
5749 - window_rect.bottom + workarea_rect.bottom,
5750 workarea_rect.top);
5752 x_set_offset (f, f->left_pos, f->top_pos, 0);
5755 f->output_data.w32->asked_for_visible = 1;
5757 /* The first of these seems to give more expected behavior, but
5758 was added as a commented out line in Sept 1997, with the
5759 second version remaining uncommented. There may have been
5760 some problem with it that led to it not being enabled,
5761 so the old version remains commented out below in case we
5762 decide we need to go back to it [23.0.60 2008-06-09]. */
5763 my_show_window (f, FRAME_W32_WINDOW (f),
5764 f->async_iconified ? SW_RESTORE : SW_SHOW);
5765 /* my_show_window (f, FRAME_W32_WINDOW (f), SW_SHOWNORMAL); */
5768 /* Synchronize to ensure Emacs knows the frame is visible
5769 before we do anything else. We do this loop with input not blocked
5770 so that incoming events are handled. */
5772 Lisp_Object frame;
5773 int count;
5775 /* This must come after we set COUNT. */
5776 UNBLOCK_INPUT;
5778 XSETFRAME (frame, f);
5780 /* Wait until the frame is visible. Process X events until a
5781 MapNotify event has been seen, or until we think we won't get a
5782 MapNotify at all.. */
5783 for (count = input_signal_count + 10;
5784 input_signal_count < count && !FRAME_VISIBLE_P (f);)
5786 /* Force processing of queued events. */
5787 /* TODO: x_sync equivalent? */
5789 /* Machines that do polling rather than SIGIO have been observed
5790 to go into a busy-wait here. So we'll fake an alarm signal
5791 to let the handler know that there's something to be read.
5792 We used to raise a real alarm, but it seems that the handler
5793 isn't always enabled here. This is probably a bug. */
5794 if (input_polling_used ())
5796 /* It could be confusing if a real alarm arrives while processing
5797 the fake one. Turn it off and let the handler reset it. */
5798 int old_poll_suppress_count = poll_suppress_count;
5799 poll_suppress_count = 1;
5800 poll_for_input_1 ();
5801 poll_suppress_count = old_poll_suppress_count;
5804 FRAME_SAMPLE_VISIBILITY (f);
5808 /* Change from mapped state to withdrawn state. */
5810 /* Make the frame visible (mapped and not iconified). */
5812 x_make_frame_invisible (f)
5813 struct frame *f;
5815 /* Don't keep the highlight on an invisible frame. */
5816 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5817 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5819 BLOCK_INPUT;
5821 my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
5823 /* We can't distinguish this from iconification
5824 just by the event that we get from the server.
5825 So we can't win using the usual strategy of letting
5826 FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
5827 and synchronize with the server to make sure we agree. */
5828 f->visible = 0;
5829 FRAME_ICONIFIED_P (f) = 0;
5830 f->async_visible = 0;
5831 f->async_iconified = 0;
5833 UNBLOCK_INPUT;
5836 /* Change window state from mapped to iconified. */
5838 void
5839 x_iconify_frame (f)
5840 struct frame *f;
5842 Lisp_Object type;
5844 /* Don't keep the highlight on an invisible frame. */
5845 if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
5846 FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
5848 if (f->async_iconified)
5849 return;
5851 BLOCK_INPUT;
5853 type = x_icon_type (f);
5854 if (!NILP (type))
5855 x_bitmap_icon (f, type);
5857 /* Simulate the user minimizing the frame. */
5858 SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
5860 UNBLOCK_INPUT;
5864 /* Free X resources of frame F. */
5866 void
5867 x_free_frame_resources (f)
5868 struct frame *f;
5870 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5872 BLOCK_INPUT;
5874 /* We must free faces before destroying windows because some
5875 font-driver (e.g. xft) access a window while finishing a
5876 face. */
5877 if (FRAME_FACE_CACHE (f))
5878 free_frame_faces (f);
5880 if (FRAME_W32_WINDOW (f))
5881 my_destroy_window (f, FRAME_W32_WINDOW (f));
5883 free_frame_menubar (f);
5885 unload_color (f, FRAME_FOREGROUND_PIXEL (f));
5886 unload_color (f, FRAME_BACKGROUND_PIXEL (f));
5887 unload_color (f, f->output_data.w32->cursor_pixel);
5888 unload_color (f, f->output_data.w32->cursor_foreground_pixel);
5889 unload_color (f, f->output_data.w32->border_pixel);
5890 unload_color (f, f->output_data.w32->mouse_pixel);
5891 if (f->output_data.w32->white_relief.allocated_p)
5892 unload_color (f, f->output_data.w32->white_relief.pixel);
5893 if (f->output_data.w32->black_relief.allocated_p)
5894 unload_color (f, f->output_data.w32->black_relief.pixel);
5896 if (FRAME_FACE_CACHE (f))
5897 free_frame_faces (f);
5899 xfree (f->output_data.w32);
5900 f->output_data.w32 = NULL;
5902 if (f == dpyinfo->w32_focus_frame)
5903 dpyinfo->w32_focus_frame = 0;
5904 if (f == dpyinfo->w32_focus_event_frame)
5905 dpyinfo->w32_focus_event_frame = 0;
5906 if (f == dpyinfo->x_highlight_frame)
5907 dpyinfo->x_highlight_frame = 0;
5909 if (f == dpyinfo->mouse_face_mouse_frame)
5911 dpyinfo->mouse_face_beg_row
5912 = dpyinfo->mouse_face_beg_col = -1;
5913 dpyinfo->mouse_face_end_row
5914 = dpyinfo->mouse_face_end_col = -1;
5915 dpyinfo->mouse_face_window = Qnil;
5916 dpyinfo->mouse_face_deferred_gc = 0;
5917 dpyinfo->mouse_face_mouse_frame = 0;
5920 UNBLOCK_INPUT;
5924 /* Destroy the window of frame F. */
5925 void
5926 x_destroy_window (f)
5927 struct frame *f;
5929 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
5931 x_free_frame_resources (f);
5932 dpyinfo->reference_count--;
5936 /* Setting window manager hints. */
5938 /* Set the normal size hints for the window manager, for frame F.
5939 FLAGS is the flags word to use--or 0 meaning preserve the flags
5940 that the window now has.
5941 If USER_POSITION is nonzero, we set the USPosition
5942 flag (this is useful when FLAGS is 0). */
5943 void
5944 x_wm_set_size_hint (f, flags, user_position)
5945 struct frame *f;
5946 long flags;
5947 int user_position;
5949 Window window = FRAME_W32_WINDOW (f);
5951 enter_crit ();
5953 SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
5954 SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
5955 SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
5956 SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
5958 leave_crit ();
5961 /* Window manager things */
5962 void
5963 x_wm_set_icon_position (f, icon_x, icon_y)
5964 struct frame *f;
5965 int icon_x, icon_y;
5967 #if 0
5968 Window window = FRAME_W32_WINDOW (f);
5970 f->display.x->wm_hints.flags |= IconPositionHint;
5971 f->display.x->wm_hints.icon_x = icon_x;
5972 f->display.x->wm_hints.icon_y = icon_y;
5974 XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
5975 #endif
5979 /***********************************************************************
5980 Initialization
5981 ***********************************************************************/
5983 static int w32_initialized = 0;
5985 void
5986 w32_initialize_display_info (display_name)
5987 Lisp_Object display_name;
5989 struct w32_display_info *dpyinfo = &one_w32_display_info;
5991 bzero (dpyinfo, sizeof (*dpyinfo));
5993 /* Put it on w32_display_name_list. */
5994 w32_display_name_list = Fcons (Fcons (display_name, Qnil),
5995 w32_display_name_list);
5996 dpyinfo->name_list_element = XCAR (w32_display_name_list);
5998 dpyinfo->w32_id_name
5999 = (char *) xmalloc (SCHARS (Vinvocation_name)
6000 + SCHARS (Vsystem_name)
6001 + 2);
6002 sprintf (dpyinfo->w32_id_name, "%s@%s",
6003 SDATA (Vinvocation_name), SDATA (Vsystem_name));
6005 /* Default Console mode values - overridden when running in GUI mode
6006 with values obtained from system metrics. */
6007 dpyinfo->resx = 1;
6008 dpyinfo->resy = 1;
6009 dpyinfo->n_planes = 1;
6010 dpyinfo->n_cbits = 4;
6011 dpyinfo->n_fonts = 0;
6012 dpyinfo->smallest_font_height = 1;
6013 dpyinfo->smallest_char_width = 1;
6015 dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
6016 dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
6017 dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID;
6018 dpyinfo->mouse_face_window = Qnil;
6019 dpyinfo->mouse_face_overlay = Qnil;
6020 dpyinfo->mouse_face_hidden = 0;
6022 dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
6023 /* TODO: dpyinfo->gray */
6027 /* Create an xrdb-style database of resources to supercede registry settings.
6028 The database is just a concatenation of C strings, finished by an additional
6029 \0. The strings are submitted to some basic normalization, so
6031 [ *]option[ *]:[ *]value...
6033 becomes
6035 option:value...
6037 but any whitespace following value is not removed. */
6039 static char *
6040 w32_make_rdb (xrm_option)
6041 char *xrm_option;
6043 char *buffer = xmalloc (strlen (xrm_option) + 2);
6044 char *current = buffer;
6045 char ch;
6046 int in_option = 1;
6047 int before_value = 0;
6049 do {
6050 ch = *xrm_option++;
6052 if (ch == '\n')
6054 *current++ = '\0';
6055 in_option = 1;
6056 before_value = 0;
6058 else if (ch != ' ')
6060 *current++ = ch;
6061 if (in_option && (ch == ':'))
6063 in_option = 0;
6064 before_value = 1;
6066 else if (before_value)
6068 before_value = 0;
6071 else if (!(in_option || before_value))
6073 *current++ = ch;
6075 } while (ch);
6077 *current = '\0';
6079 return buffer;
6082 void
6083 x_flush (struct frame * f)
6084 { /* Nothing to do */ }
6087 extern frame_parm_handler w32_frame_parm_handlers[];
6089 static struct redisplay_interface w32_redisplay_interface =
6091 w32_frame_parm_handlers,
6092 x_produce_glyphs,
6093 x_write_glyphs,
6094 x_insert_glyphs,
6095 x_clear_end_of_line,
6096 x_scroll_run,
6097 x_after_update_window_line,
6098 x_update_window_begin,
6099 x_update_window_end,
6100 x_cursor_to,
6101 x_flush,
6102 0, /* flush_display_optional */
6103 x_clear_window_mouse_face,
6104 x_get_glyph_overhangs,
6105 x_fix_overlapping_area,
6106 w32_draw_fringe_bitmap,
6107 w32_define_fringe_bitmap,
6108 w32_destroy_fringe_bitmap,
6109 w32_compute_glyph_string_overhangs,
6110 x_draw_glyph_string,
6111 w32_define_frame_cursor,
6112 w32_clear_frame_area,
6113 w32_draw_window_cursor,
6114 w32_draw_vertical_window_border,
6115 w32_shift_glyphs_for_insert
6118 static void x_delete_terminal (struct terminal *term);
6120 static struct terminal *
6121 w32_create_terminal (struct w32_display_info *dpyinfo)
6123 struct terminal *terminal;
6125 terminal = create_terminal ();
6127 terminal->type = output_w32;
6128 terminal->display_info.w32 = dpyinfo;
6129 dpyinfo->terminal = terminal;
6131 /* MSVC does not type K&R functions with no arguments correctly, and
6132 so we must explicitly cast them. */
6133 terminal->clear_frame_hook = x_clear_frame;
6134 terminal->ins_del_lines_hook = x_ins_del_lines;
6135 terminal->delete_glyphs_hook = x_delete_glyphs;
6136 terminal->ring_bell_hook = w32_ring_bell;
6137 terminal->reset_terminal_modes_hook = w32_reset_terminal_modes;
6138 terminal->set_terminal_modes_hook = w32_set_terminal_modes;
6139 terminal->update_begin_hook = x_update_begin;
6140 terminal->update_end_hook = x_update_end;
6141 terminal->set_terminal_window_hook = w32_set_terminal_window;
6142 terminal->read_socket_hook = w32_read_socket;
6143 terminal->frame_up_to_date_hook = w32_frame_up_to_date;
6144 terminal->mouse_position_hook = w32_mouse_position;
6145 terminal->frame_rehighlight_hook = w32_frame_rehighlight;
6146 terminal->frame_raise_lower_hook = w32_frame_raise_lower;
6147 // terminal->fullscreen_hook = XTfullscreen_hook;
6148 terminal->set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
6149 terminal->condemn_scroll_bars_hook = w32_condemn_scroll_bars;
6150 terminal->redeem_scroll_bar_hook = w32_redeem_scroll_bar;
6151 terminal->judge_scroll_bars_hook = w32_judge_scroll_bars;
6153 terminal->delete_frame_hook = x_destroy_window;
6154 terminal->delete_terminal_hook = x_delete_terminal;
6156 terminal->rif = &w32_redisplay_interface;
6157 terminal->scroll_region_ok = 1; /* We'll scroll partial frames. */
6158 terminal->char_ins_del_ok = 1;
6159 terminal->line_ins_del_ok = 1; /* We'll just blt 'em. */
6160 terminal->fast_clear_end_of_line = 1; /* X does this well. */
6161 terminal->memory_below_frame = 0; /* We don't remember what scrolls
6162 off the bottom. */
6164 /* We don't yet support separate terminals on W32, so don't try to share
6165 keyboards between virtual terminals that are on the same physical
6166 terminal like X does. */
6167 terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD));
6168 init_kboard (terminal->kboard);
6169 terminal->kboard->Vwindow_system = intern ("w32");
6170 terminal->kboard->next_kboard = all_kboards;
6171 all_kboards = terminal->kboard;
6172 /* Don't let the initial kboard remain current longer than necessary.
6173 That would cause problems if a file loaded on startup tries to
6174 prompt in the mini-buffer. */
6175 if (current_kboard == initial_kboard)
6176 current_kboard = terminal->kboard;
6177 terminal->kboard->reference_count++;
6179 return terminal;
6182 static void
6183 x_delete_terminal (struct terminal *terminal)
6185 struct w32_display_info *dpyinfo = terminal->display_info.w32;
6186 int i;
6188 /* Protect against recursive calls. delete_frame in
6189 delete_terminal calls us back when it deletes our last frame. */
6190 if (!terminal->name)
6191 return;
6193 BLOCK_INPUT;
6195 x_delete_display (dpyinfo);
6196 UNBLOCK_INPUT;
6199 struct w32_display_info *
6200 w32_term_init (display_name, xrm_option, resource_name)
6201 Lisp_Object display_name;
6202 char *xrm_option;
6203 char *resource_name;
6205 struct w32_display_info *dpyinfo;
6206 struct terminal *terminal;
6207 HDC hdc;
6209 BLOCK_INPUT;
6211 if (!w32_initialized)
6213 w32_initialize ();
6214 w32_initialized = 1;
6217 w32_initialize_display_info (display_name);
6219 dpyinfo = &one_w32_display_info;
6220 terminal = w32_create_terminal (dpyinfo);
6222 /* Set the name of the terminal. */
6223 terminal->name = (char *) xmalloc (SBYTES (display_name) + 1);
6224 strncpy (terminal->name, SDATA (display_name), SBYTES (display_name));
6225 terminal->name[SBYTES (display_name)] = 0;
6227 dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
6229 /* Put this display on the chain. */
6230 dpyinfo->next = x_display_list;
6231 x_display_list = dpyinfo;
6233 hdc = GetDC (NULL);
6235 dpyinfo->root_window = GetDesktopWindow ();
6236 dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
6237 dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
6238 dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
6239 dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
6240 dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
6241 ReleaseDC (NULL, hdc);
6243 /* initialise palette with white and black */
6245 XColor color;
6246 w32_defined_color (0, "white", &color, 1);
6247 w32_defined_color (0, "black", &color, 1);
6250 /* Add the default keyboard. */
6251 add_keyboard_wait_descriptor (0);
6253 /* Create Fringe Bitmaps and store them for later use.
6255 On W32, bitmaps are all unsigned short, as Windows requires
6256 bitmap data to be Word aligned. For some reason they are
6257 horizontally reflected compared to how they appear on X, so we
6258 need to bitswap and convert to unsigned shorts before creating
6259 the bitmaps. */
6260 w32_init_fringe (terminal->rif);
6262 #ifdef F_SETOWN
6263 fcntl (connection, F_SETOWN, getpid ());
6264 #endif /* ! defined (F_SETOWN) */
6266 #ifdef SIGIO
6267 if (interrupt_input)
6268 init_sigio (connection);
6269 #endif /* ! defined (SIGIO) */
6271 UNBLOCK_INPUT;
6273 return dpyinfo;
6276 /* Get rid of display DPYINFO, assuming all frames are already gone. */
6277 void
6278 x_delete_display (dpyinfo)
6279 struct w32_display_info *dpyinfo;
6281 /* Discard this display from w32_display_name_list and w32_display_list.
6282 We can't use Fdelq because that can quit. */
6283 if (! NILP (w32_display_name_list)
6284 && EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
6285 w32_display_name_list = XCDR (w32_display_name_list);
6286 else
6288 Lisp_Object tail;
6290 tail = w32_display_name_list;
6291 while (CONSP (tail) && CONSP (XCDR (tail)))
6293 if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element))
6295 XSETCDR (tail, XCDR (XCDR (tail)));
6296 break;
6298 tail = XCDR (tail);
6302 /* free palette table */
6304 struct w32_palette_entry * plist;
6306 plist = dpyinfo->color_list;
6307 while (plist)
6309 struct w32_palette_entry * pentry = plist;
6310 plist = plist->next;
6311 xfree (pentry);
6313 dpyinfo->color_list = NULL;
6314 if (dpyinfo->palette)
6315 DeleteObject (dpyinfo->palette);
6317 xfree (dpyinfo->w32_id_name);
6319 w32_reset_fringes ();
6322 /* Set up use of W32. */
6324 DWORD WINAPI w32_msg_worker (void * arg);
6326 static void
6327 w32_initialize ()
6329 HANDLE shell;
6330 HRESULT (WINAPI * set_user_model) (wchar_t * id);
6332 baud_rate = 19200;
6334 w32_system_caret_hwnd = NULL;
6335 w32_system_caret_height = 0;
6336 w32_system_caret_x = 0;
6337 w32_system_caret_y = 0;
6339 /* On Windows 7 and later, we need to set the user model ID
6340 to associate emacsclient launched files with Emacs frames
6341 in the UI. */
6342 shell = GetModuleHandle ("shell32.dll");
6343 if (shell)
6345 set_user_model
6346 = (void *) GetProcAddress (shell,
6347 "SetCurrentProcessExplicitAppUserModelID");
6349 /* If the function is defined, then we are running on Windows 7
6350 or newer, and the UI uses this to group related windows
6351 together. Since emacs, runemacs, emacsclient are related, we
6352 want them grouped even though the executables are different,
6353 so we need to set a consistent ID between them. */
6354 if (set_user_model)
6355 set_user_model (L"GNU.Emacs");
6358 /* Initialize w32_use_visible_system_caret based on whether a screen
6359 reader is in use. */
6360 if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
6361 &w32_use_visible_system_caret, 0))
6362 w32_use_visible_system_caret = 0;
6364 last_tool_bar_item = -1;
6365 any_help_event_p = 0;
6367 /* Initialize input mode: interrupt_input off, no flow control, allow
6368 8 bit character input, standard quit char. */
6369 Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
6372 DWORD input_locale_id = (DWORD) GetKeyboardLayout (0);
6373 keyboard_codepage = codepage_for_locale ((LCID) (input_locale_id & 0xffff));
6376 /* Create the window thread - it will terminate itself when the app
6377 terminates */
6378 init_crit ();
6380 dwMainThreadId = GetCurrentThreadId ();
6381 DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
6382 GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
6384 /* Wait for thread to start */
6386 MSG msg;
6388 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
6390 hWindowsThread = CreateThread (NULL, 0,
6391 w32_msg_worker,
6392 0, 0, &dwWindowsThreadId);
6394 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6397 /* It is desirable that mainThread should have the same notion of
6398 focus window and active window as windowsThread. Unfortunately, the
6399 following call to AttachThreadInput, which should do precisely what
6400 we need, causes major problems when Emacs is linked as a console
6401 program. Unfortunately, we have good reasons for doing that, so
6402 instead we need to send messages to windowsThread to make some API
6403 calls for us (ones that affect, or depend on, the active/focus
6404 window state.) */
6405 #ifdef ATTACH_THREADS
6406 AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
6407 #endif
6409 /* Dynamically link to optional system components. */
6411 HMODULE user_lib = GetModuleHandle ("user32.dll");
6413 #define LOAD_PROC(lib, fn) pfn##fn = (void *) GetProcAddress (lib, #fn)
6415 LOAD_PROC (user_lib, SetLayeredWindowAttributes);
6417 #undef LOAD_PROC
6419 /* Ensure scrollbar handle is at least 5 pixels. */
6420 vertical_scroll_bar_min_handle = 5;
6422 /* For either kind of scroll bar, take account of the arrows; these
6423 effectively form the border of the main scroll bar range. */
6424 vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
6425 = GetSystemMetrics (SM_CYVSCROLL);
6429 void
6430 syms_of_w32term ()
6432 staticpro (&w32_display_name_list);
6433 w32_display_name_list = Qnil;
6435 staticpro (&last_mouse_scroll_bar);
6436 last_mouse_scroll_bar = Qnil;
6438 DEFSYM (Qvendor_specific_keysyms, "vendor-specific-keysyms");
6440 DEFVAR_INT ("w32-num-mouse-buttons",
6441 &w32_num_mouse_buttons,
6442 doc: /* Number of physical mouse buttons. */);
6443 w32_num_mouse_buttons = 2;
6445 DEFVAR_LISP ("w32-swap-mouse-buttons",
6446 &Vw32_swap_mouse_buttons,
6447 doc: /* Swap the mapping of middle and right mouse buttons.
6448 When nil, middle button is mouse-2 and right button is mouse-3. */);
6449 Vw32_swap_mouse_buttons = Qnil;
6451 DEFVAR_LISP ("w32-grab-focus-on-raise",
6452 &Vw32_grab_focus_on_raise,
6453 doc: /* Raised frame grabs input focus.
6454 When t, `raise-frame' grabs input focus as well. This fits well
6455 with the normal Windows click-to-focus policy, but might not be
6456 desirable when using a point-to-focus policy. */);
6457 Vw32_grab_focus_on_raise = Qt;
6459 DEFVAR_LISP ("w32-capslock-is-shiftlock",
6460 &Vw32_capslock_is_shiftlock,
6461 doc: /* Apply CapsLock state to non character input keys.
6462 When nil, CapsLock only affects normal character input keys. */);
6463 Vw32_capslock_is_shiftlock = Qnil;
6465 DEFVAR_LISP ("w32-recognize-altgr",
6466 &Vw32_recognize_altgr,
6467 doc: /* Recognize right-alt and left-ctrl as AltGr.
6468 When nil, the right-alt and left-ctrl key combination is
6469 interpreted normally. */);
6470 Vw32_recognize_altgr = Qt;
6472 DEFVAR_BOOL ("w32-use-visible-system-caret",
6473 &w32_use_visible_system_caret,
6474 doc: /* Flag to make the system caret visible.
6475 When this is non-nil, Emacs will indicate the position of point by
6476 using the system caret instead of drawing its own cursor. Some screen
6477 reader software does not track the system cursor properly when it is
6478 invisible, and gets confused by Emacs drawing its own cursor, so this
6479 variable is initialized to t when Emacs detects that screen reader
6480 software is running as it starts up.
6482 When this variable is set, other variables affecting the appearance of
6483 the cursor have no effect. */);
6485 w32_use_visible_system_caret = 0;
6487 /* We don't yet support this, but defining this here avoids whining
6488 from cus-start.el and other places, like "M-x set-variable". */
6489 DEFVAR_BOOL ("x-use-underline-position-properties",
6490 &x_use_underline_position_properties,
6491 doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties.
6492 A value of nil means ignore them. If you encounter fonts with bogus
6493 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
6494 to 4.1, set this to nil. */);
6495 x_use_underline_position_properties = 0;
6497 DEFVAR_BOOL ("x-underline-at-descent-line",
6498 &x_underline_at_descent_line,
6499 doc: /* *Non-nil means to draw the underline at the same place as the descent line.
6500 A value of nil means to draw the underline according to the value of the
6501 variable `x-use-underline-position-properties', which is usually at the
6502 baseline level. The default value is nil. */);
6503 x_underline_at_descent_line = 0;
6505 DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
6506 doc: /* If not nil, Emacs uses toolkit scroll bars. */);
6507 Vx_toolkit_scroll_bars = Qt;
6509 staticpro (&last_mouse_motion_frame);
6510 last_mouse_motion_frame = Qnil;
6513 /* arch-tag: 5fa70624-ab86-499c-8a85-473958ee4646
6514 (do not change this comment) */