xfns.c 172 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Functions for the X window system.
Stefan Monnier's avatar
Stefan Monnier committed
2
   Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
Glenn Morris's avatar
Glenn Morris committed
3
                 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
4 5 6 7 8

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
9
the Free Software Foundation; either version 3, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
10 11 12 13 14 15 16 17 18
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
Lute Kamstra's avatar
Lute Kamstra committed
19 20
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  */
Jim Blandy's avatar
Jim Blandy committed
21

Richard M. Stallman's avatar
Richard M. Stallman committed
22
#include <config.h>
23
#include <stdio.h>
24
#include <math.h>
Richard M. Stallman's avatar
Richard M. Stallman committed
25

26 27 28 29
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

30
/* This makes the fields of a Display accessible, in Xlib header files.  */
31

32 33
#define XLIB_ILLEGAL_ACCESS

Jim Blandy's avatar
Jim Blandy committed
34 35
#include "lisp.h"
#include "xterm.h"
Jim Blandy's avatar
Jim Blandy committed
36
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
37 38
#include "window.h"
#include "buffer.h"
Kenichi Handa's avatar
Kenichi Handa committed
39
#include "intervals.h"
Jim Blandy's avatar
Jim Blandy committed
40
#include "dispextern.h"
Jim Blandy's avatar
Jim Blandy committed
41
#include "keyboard.h"
42
#include "blockinput.h"
43
#include <epaths.h>
Karl Heuer's avatar
Karl Heuer committed
44
#include "charset.h"
Kenichi Handa's avatar
Kenichi Handa committed
45
#include "coding.h"
Karl Heuer's avatar
Karl Heuer committed
46
#include "fontset.h"
47 48
#include "systime.h"
#include "termhooks.h"
49
#include "atimer.h"
Jim Blandy's avatar
Jim Blandy committed
50 51

#ifdef HAVE_X_WINDOWS
52 53

#include <ctype.h>
54 55
#include <sys/types.h>
#include <sys/stat.h>
Jim Blandy's avatar
Jim Blandy committed
56

57
#ifndef VMS
58
#if 1 /* Used to be #ifdef EMACS_BITMAP_FILES, but this should always work.  */
59 60
#include "bitmaps/gray.xbm"
#else
Jim Blandy's avatar
Jim Blandy committed
61
#include <X11/bitmaps/gray>
62
#endif
63 64 65
#else
#include "[.bitmaps]gray.xbm"
#endif
Jim Blandy's avatar
Jim Blandy committed
66

Jan Djärv's avatar
Jan Djärv committed
67 68 69 70
#ifdef USE_GTK
#include "gtkutil.h"
#endif

71 72 73
#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>

74
#ifndef USE_MOTIF
75 76
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/Label.h>
77
#endif /* USE_MOTIF */
78 79 80 81 82 83 84 85 86 87 88 89 90

#ifdef USG
#undef USG	/* ####KLUDGE for Solaris 2.2 and up */
#include <X11/Xos.h>
#define USG
#else
#include <X11/Xos.h>
#endif

#include "widget.h"

#include "../lwlib/lwlib.h"

91 92 93 94 95 96
#ifdef USE_MOTIF
#include <Xm/Xm.h>
#include <Xm/DialogS.h>
#include <Xm/FileSB.h>
#endif

97 98
/* Do the EDITRES protocol if running X11R5
   Exception: HP-UX (at least version A.09.05) has X11R5 without EditRes */
99

100
#if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES)
101
#define HACK_EDITRES
102
extern void _XEditResCheckMessages ();
103 104
#endif /* R5 + Athena */

105 106
/* Unique id counter for widgets created by the Lucid Widget Library.  */

107 108
extern LWLIB_ID widget_id_tick;

109
#ifdef USE_LUCID
110
/* This is part of a kludge--see lwlib/xlwmenu.c.  */
111
extern XFontStruct *xlwmenu_default_font;
112
#endif
113

114
extern void free_frame_menubar ();
115
extern double atof ();
116

117 118 119 120 121 122 123 124
#ifdef USE_MOTIF

/* LessTif/Motif version info.  */

static Lisp_Object Vmotif_version_string;

#endif /* USE_MOTIF */

125 126
#endif /* USE_X_TOOLKIT */

127 128 129 130 131 132 133 134
#ifdef USE_GTK

/* GTK+ version info */

static Lisp_Object Vgtk_version_string;

#endif /* USE_GTK */

Richard M. Stallman's avatar
Richard M. Stallman committed
135 136 137 138 139 140
#ifdef HAVE_X11R4
#define MAXREQUEST(dpy) (XMaxRequestSize (dpy))
#else
#define MAXREQUEST(dpy) ((dpy)->max_request_size)
#endif

141 142 143 144 145 146
/* The gray bitmap `bitmaps/gray'.  This is done because xterm.c uses
   it, and including `bitmaps/gray' more than once is a problem when
   config.h defines `static' as an empty replacement string.  */

int gray_bitmap_width = gray_width;
int gray_bitmap_height = gray_height;
147
char *gray_bitmap_bits = gray_bits;
148

149
/* Non-zero means we're allowed to display an hourglass cursor.  */
150

151
int display_hourglass_p;
152

153 154
/* Non-zero means prompt with the old GTK file selection dialog.  */

155
int x_gtk_use_old_file_dialog;
156

157 158 159 160
/* If non-zero, by default show hidden files in the GTK file chooser.  */

int x_gtk_show_hidden_files;

161 162
/* If non-zero, don't show additional help text in the GTK file chooser.  */

163
int x_gtk_file_dialog_help_text;
164

165 166 167 168
/* If non-zero, don't collapse to tool bar when it is detached.  */

int x_gtk_whole_detached_tool_bar;

Jim Blandy's avatar
Jim Blandy committed
169
/* The background and shape of the mouse pointer, and shape when not
170
   over text or in the modeline.  */
171

Jim Blandy's avatar
Jim Blandy committed
172
Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
173
Lisp_Object Vx_hourglass_pointer_shape;
174

175
/* The shape when over mouse-sensitive text.  */
176

177
Lisp_Object Vx_sensitive_text_pointer_shape;
Jim Blandy's avatar
Jim Blandy committed
178

179 180 181 182 183
/* If non-nil, the pointer shape to indicate that windows can be
   dragged horizontally.  */

Lisp_Object Vx_window_horizontal_drag_shape;

184
/* Color of chars displayed in cursor box.  */
185

Jim Blandy's avatar
Jim Blandy committed
186 187
Lisp_Object Vx_cursor_fore_pixel;

188
/* Nonzero if using X.  */
189

190
static int x_in_use;
Jim Blandy's avatar
Jim Blandy committed
191

192
/* Non nil if no window manager is in use.  */
193

Jim Blandy's avatar
Jim Blandy committed
194 195
Lisp_Object Vx_no_window_manager;

Karl Heuer's avatar
Karl Heuer committed
196
/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
197

Karl Heuer's avatar
Karl Heuer committed
198 199
Lisp_Object Vx_pixel_size_width_font_regexp;

200
Lisp_Object Qnone;
201
Lisp_Object Qsuppress_icon;
Jim Blandy's avatar
Jim Blandy committed
202
Lisp_Object Qundefined_color;
203
Lisp_Object Qcompound_text, Qcancel_timer;
Jim Blandy's avatar
Jim Blandy committed
204

205
/* In dispnew.c */
206

Jim Blandy's avatar
Jim Blandy committed
207 208
extern Lisp_Object Vwindow_system_version;

209
/* The below are defined in frame.c.  */
210

211
#if GLYPH_DEBUG
212 213 214 215
int image_cache_refcount, dpyinfo_refcount;
#endif


Jim Blandy's avatar
Jim Blandy committed
216

Richard M. Stallman's avatar
Richard M. Stallman committed
217
/* Error if we are not connected to X.  */
218

Karl Heuer's avatar
Karl Heuer committed
219
void
Richard M. Stallman's avatar
Richard M. Stallman committed
220 221
check_x ()
{
222
  if (! x_in_use)
Richard M. Stallman's avatar
Richard M. Stallman committed
223 224 225
    error ("X windows are not in use or not initialized");
}

226 227
/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
228 229

int
230
have_menus_p ()
231
{
232 233 234 235 236 237 238 239 240 241 242 243 244
  return x_in_use;
}

/* Extract a frame as a FRAME_PTR, defaulting to the selected frame
   and checking validity for X.  */

FRAME_PTR
check_x_frame (frame)
     Lisp_Object frame;
{
  FRAME_PTR f;

  if (NILP (frame))
Gerd Moellmann's avatar
Gerd Moellmann committed
245
    frame = selected_frame;
246
  CHECK_LIVE_FRAME (frame);
Gerd Moellmann's avatar
Gerd Moellmann committed
247
  f = XFRAME (frame);
248
  if (! FRAME_X_P (f))
249
    error ("Non-X frame used");
250
  return f;
251 252
}

253 254 255 256
/* Let the user specify an X display with a frame.
   nil stands for the selected frame--or, if that is not an X frame,
   the first X display on the list.  */

257
struct x_display_info *
258 259 260
check_x_display_info (frame)
     Lisp_Object frame;
{
261
  struct x_display_info *dpyinfo = NULL;
262

263 264
  if (NILP (frame))
    {
Gerd Moellmann's avatar
Gerd Moellmann committed
265
      struct frame *sf = XFRAME (selected_frame);
266

Gerd Moellmann's avatar
Gerd Moellmann committed
267
      if (FRAME_X_P (sf) && FRAME_LIVE_P (sf))
268
	dpyinfo = FRAME_X_DISPLAY_INFO (sf);
269
      else if (x_display_list != 0)
270
	dpyinfo = x_display_list;
271 272 273 274
      else
	error ("X windows are not in use or not initialized");
    }
  else if (STRINGP (frame))
275
    dpyinfo = x_display_info_for_name (frame);
276 277
  else
    {
278
      FRAME_PTR f = check_x_frame (frame);
279
      dpyinfo = FRAME_X_DISPLAY_INFO (f);
280
    }
281 282

  return dpyinfo;
283
}
284

285

Jim Blandy's avatar
Jim Blandy committed
286 287
/* Return the Emacs frame-object corresponding to an X window.
   It could be the frame's main window or an icon window.  */
Jim Blandy's avatar
Jim Blandy committed
288

289
/* This function can be called during GC, so use GC_xxx type test macros.  */
290

Jim Blandy's avatar
Jim Blandy committed
291
struct frame *
292 293
x_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
Jim Blandy's avatar
Jim Blandy committed
294 295
     int wdesc;
{
Jim Blandy's avatar
Jim Blandy committed
296 297
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
298

299 300
  if (wdesc == None) return 0;

301
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
302
    {
303
      frame = XCAR (tail);
304
      if (!GC_FRAMEP (frame))
Jim Blandy's avatar
Jim Blandy committed
305
        continue;
Jim Blandy's avatar
Jim Blandy committed
306
      f = XFRAME (frame);
307
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
308
	continue;
309
      if (f->output_data.x->hourglass_window == wdesc)
310
	return f;
311
#ifdef USE_X_TOOLKIT
312
      if ((f->output_data.x->edit_widget
313
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
314 315 316
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
317
          || f->output_data.x->icon_desc == wdesc)
318 319
        return f;
#else /* not USE_X_TOOLKIT */
Jan Djärv's avatar
Jan Djärv committed
320 321 322
#ifdef USE_GTK
      if (f->output_data.x->edit_widget)
      {
323
        GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
324 325 326 327 328
        struct x_output *x = f->output_data.x;
        if (gwdesc != 0 && gwdesc == x->edit_widget)
          return f;
      }
#endif /* USE_GTK */
329
      if (FRAME_X_WINDOW (f) == wdesc
330
          || f->output_data.x->icon_desc == wdesc)
Jim Blandy's avatar
Jim Blandy committed
331
        return f;
332 333 334 335 336
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

Jan Djärv's avatar
Jan Djärv committed
337
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
338 339 340 341
/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

struct frame *
342 343
x_any_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
344 345 346
     int wdesc;
{
  Lisp_Object tail, frame;
347
  struct frame *f, *found;
348
  struct x_output *x;
349

350 351
  if (wdesc == None) return NULL;

352 353
  found = NULL;
  for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail))
354
    {
355
      frame = XCAR (tail);
356
      if (!GC_FRAMEP (frame))
357
        continue;
358

359
      f = XFRAME (frame);
360
      if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo)
361
	{
362 363
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
364
	  if (x->hourglass_window == wdesc)
365 366 367
	    found = f;
	  else if (x->widget)
	    {
Jan Djärv's avatar
Jan Djärv committed
368
#ifdef USE_GTK
369
              GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
370 371 372 373 374 375 376
              if (gwdesc != 0
                  && (gwdesc == x->widget
                      || gwdesc == x->edit_widget
                      || gwdesc == x->vbox_widget
                      || gwdesc == x->menubar_widget))
                found = f;
#else
377 378
	      if (wdesc == XtWindow (x->widget)
		  || wdesc == XtWindow (x->column_widget)
379 380 381 382 383
		  || wdesc == XtWindow (x->edit_widget))
		found = f;
	      /* Match if the window is this frame's menubar.  */
	      else if (lw_window_is_in_menubar (wdesc, x->menubar_widget))
		found = f;
Jan Djärv's avatar
Jan Djärv committed
384
#endif
385 386 387 388
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
389
	}
Jim Blandy's avatar
Jim Blandy committed
390
    }
391

392
  return found;
Jim Blandy's avatar
Jim Blandy committed
393
}
394

395 396 397 398 399 400 401 402 403
/* Likewise, but exclude the menu bar widget.  */

struct frame *
x_non_menubar_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
404
  struct x_output *x;
405

406 407
  if (wdesc == None) return 0;

408
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
409
    {
410
      frame = XCAR (tail);
411 412 413
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
414
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
415
	continue;
416
      x = f->output_data.x;
417
      /* This frame matches if the window is any of its widgets.  */
418
      if (x->hourglass_window == wdesc)
419 420
	return f;
      else if (x->widget)
421
	{
Jan Djärv's avatar
Jan Djärv committed
422
#ifdef USE_GTK
423
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
424 425 426 427 428 429
          if (gwdesc != 0
              && (gwdesc == x->widget
                  || gwdesc == x->edit_widget
                  || gwdesc == x->vbox_widget))
            return f;
#else
430 431
	  if (wdesc == XtWindow (x->widget)
	      || wdesc == XtWindow (x->column_widget)
432 433
	      || wdesc == XtWindow (x->edit_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
434
#endif
435 436 437
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* A tooltip frame.  */
438 439 440 441 442
	return f;
    }
  return 0;
}

443 444 445 446 447 448 449 450 451
/* Likewise, but consider only the menu bar widget.  */

struct frame *
x_menubar_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
452
  struct x_output *x;
453

454 455
  if (wdesc == None) return 0;

456
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
457
    {
458
      frame = XCAR (tail);
459 460 461
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
462
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
463
	continue;
464
      x = f->output_data.x;
465
      /* Match if the window is this frame's menubar.  */
Jan Djärv's avatar
Jan Djärv committed
466 467 468
#ifdef USE_GTK
      if (x->menubar_widget)
        {
469
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
470
          int found = 0;
471

Jan Djärv's avatar
Jan Djärv committed
472 473 474 475 476 477 478 479 480
          BLOCK_INPUT;
          if (gwdesc != 0
              && (gwdesc == x->menubar_widget
                  || gtk_widget_get_parent (gwdesc) == x->menubar_widget))
            found = 1;
          UNBLOCK_INPUT;
          if (found) return f;
        }
#else
481 482
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
483
	return f;
Jan Djärv's avatar
Jan Djärv committed
484
#endif
485 486 487 488
    }
  return 0;
}

489 490 491 492
/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
493 494
x_top_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
495 496 497 498
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
499
  struct x_output *x;
500

501 502
  if (wdesc == None) return 0;

503
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
504
    {
505
      frame = XCAR (tail);
506
      if (!GC_FRAMEP (frame))
507 508
        continue;
      f = XFRAME (frame);
509
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
510
	continue;
511
      x = f->output_data.x;
512 513 514 515

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
Jan Djärv's avatar
Jan Djärv committed
516
#ifdef USE_GTK
517
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
518 519 520
          if (gwdesc == x->widget)
            return f;
#else
521 522
	  if (wdesc == XtWindow (x->widget))
	    return f;
523 524 525
#if 0 /* I don't know why it did this,
	 but it seems logically wrong,
	 and it causes trouble for MapNotify events.  */
526
	  /* Match if the window is this frame's menubar.  */
527
	  if (x->menubar_widget
528 529
	      && wdesc == XtWindow (x->menubar_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
530
#endif
531
#endif
532 533 534 535
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
536 537 538
    }
  return 0;
}
Jan Djärv's avatar
Jan Djärv committed
539
#endif /* USE_X_TOOLKIT || USE_GTK */
Jim Blandy's avatar
Jim Blandy committed
540

541 542


543 544
static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
545

546
void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
Gerd Moellmann's avatar
Gerd Moellmann committed
547
static void x_set_wait_for_wm P_ ((struct frame *, Lisp_Object, Lisp_Object));
548 549 550 551 552 553 554 555 556 557
void x_set_background_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_mouse_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_cursor_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_border_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_cursor_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_icon_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_icon_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_explicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_title P_ ((struct frame *, Lisp_Object, Lisp_Object));
558
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
559 560 561 562 563 564 565 566 567
void x_set_scroll_bar_foreground P_ ((struct frame *, Lisp_Object,
				      Lisp_Object));
void x_set_scroll_bar_background P_ ((struct frame *, Lisp_Object,
				      Lisp_Object));
static Lisp_Object x_default_scroll_bar_color_parameter P_ ((struct frame *,
							     Lisp_Object,
							     Lisp_Object,
							     char *, char *,
							     int));
Jim Blandy's avatar
Jim Blandy committed
568

569

570
/* Store the screen positions of frame F into XPTR and YPTR.
571 572 573 574 575 576 577 578
   These are the positions of the containing window manager window,
   not Emacs's own window.  */

void
x_real_positions (f, xptr, yptr)
     FRAME_PTR f;
     int *xptr, *yptr;
{
579 580 581 582
  int win_x, win_y, outer_x, outer_y;
  int real_x = 0, real_y = 0;
  int had_errors = 0;
  Window win = f->output_data.x->parent_desc;
583

584 585
  BLOCK_INPUT;

586
  x_catch_errors (FRAME_X_DISPLAY (f));
587

588 589 590 591 592 593 594 595
  if (win == FRAME_X_DISPLAY_INFO (f)->root_window)
    win = FRAME_OUTER_WINDOW (f);

  /* This loop traverses up the containment tree until we hit the root
     window.  Window managers may intersect many windows between our window
     and the root window.  The window we find just before the root window
     should be the outer WM window. */
  for (;;)
596
    {
597 598 599
      Window wm_window, rootw;
      Window *tmp_children;
      unsigned int tmp_nchildren;
600
      int success;
601

602 603
      success = XQueryTree (FRAME_X_DISPLAY (f), win, &rootw,
			    &wm_window, &tmp_children, &tmp_nchildren);
604

605
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
606

607 608 609 610 611 612
      /* Don't free tmp_children if XQueryTree failed.  */
      if (! success)
	break;

      XFree ((char *) tmp_children);

613 614
      if (wm_window == rootw || had_errors)
        break;
615

616 617
      win = wm_window;
    }
618

619 620
  if (! had_errors)
    {
621
      unsigned int ign;
622
      Window child, rootw;
623

624 625 626 627 628 629 630 631 632 633 634 635 636 637
      /* Get the real coordinates for the WM window upper left corner */
      XGetGeometry (FRAME_X_DISPLAY (f), win,
                    &rootw, &real_x, &real_y, &ign, &ign, &ign, &ign);

      /* Translate real coordinates to coordinates relative to our
         window.  For our window, the upper left corner is 0, 0.
         Since the upper left corner of the WM window is outside
         our window, win_x and win_y will be negative:

         ------------------          ---> x
         |      title                |
         | -----------------         v y
         | |  our window
      */
638
      XTranslateCoordinates (FRAME_X_DISPLAY (f),
639

640 641
			     /* From-window, to-window.  */
			     FRAME_X_DISPLAY_INFO (f)->root_window,
642
                             FRAME_X_WINDOW (f),
643

644
			     /* From-position, to-position.  */
645
                             real_x, real_y, &win_x, &win_y,
646

647 648
			     /* Child of win.  */
			     &child);
649

650
      if (FRAME_X_WINDOW (f) == FRAME_OUTER_WINDOW (f))
651
	{
652 653
          outer_x = win_x;
          outer_y = win_y;
654
	}
655 656 657
      else
        {
          XTranslateCoordinates (FRAME_X_DISPLAY (f),
658

659 660 661
                                 /* From-window, to-window.  */
                                 FRAME_X_DISPLAY_INFO (f)->root_window,
                                 FRAME_OUTER_WINDOW (f),
662

663 664
                                 /* From-position, to-position.  */
                                 real_x, real_y, &outer_x, &outer_y,
665

666 667
                                 /* Child of win.  */
                                 &child);
668
	}
669

670 671
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
    }
672

673
  x_uncatch_errors ();
674

675 676 677
  UNBLOCK_INPUT;

  if (had_errors) return;
678

679 680 681 682 683
  f->x_pixels_diff = -win_x;
  f->y_pixels_diff = -win_y;

  FRAME_X_OUTPUT (f)->x_pixels_outer_diff = -outer_x;
  FRAME_X_OUTPUT (f)->y_pixels_outer_diff = -outer_y;
684 685 686

  *xptr = real_x;
  *yptr = real_y;
687 688
}

Jim Blandy's avatar
Jim Blandy committed
689

690

691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707

/* Gamma-correct COLOR on frame F.  */

void
gamma_correct (f, color)
     struct frame *f;
     XColor *color;
{
  if (f->gamma)
    {
      color->red = pow (color->red / 65535.0, f->gamma) * 65535.0 + 0.5;
      color->green = pow (color->green / 65535.0, f->gamma) * 65535.0 + 0.5;
      color->blue = pow (color->blue / 65535.0, f->gamma) * 65535.0 + 0.5;
    }
}


708 709 710 711
/* Decide if color named COLOR_NAME is valid for use on frame F.  If
   so, return the RGB values in COLOR.  If ALLOC_P is non-zero,
   allocate the color.  Value is zero if COLOR_NAME is invalid, or
   no color could be allocated.  */
712

Jim Blandy's avatar
Jim Blandy committed
713
int
714 715 716 717 718
x_defined_color (f, color_name, color, alloc_p)
     struct frame *f;
     char *color_name;
     XColor *color;
     int alloc_p;
Jim Blandy's avatar
Jim Blandy committed
719
{
720 721 722
  int success_p;
  Display *dpy = FRAME_X_DISPLAY (f);
  Colormap cmap = FRAME_X_COLORMAP (f);
Jim Blandy's avatar
Jim Blandy committed
723 724

  BLOCK_INPUT;
725 726 727
  success_p = XParseColor (dpy, cmap, color_name, color);
  if (success_p && alloc_p)
    success_p = x_alloc_nearest_color (f, cmap, color);
Jim Blandy's avatar
Jim Blandy committed
728 729
  UNBLOCK_INPUT;

730
  return success_p;
Jim Blandy's avatar
Jim Blandy committed
731 732
}

733 734 735 736

/* Return the pixel color value for color COLOR_NAME on frame F.  If F
   is a monochrome frame, return MONO_COLOR regardless of what ARG says.
   Signal an error if color can't be allocated.  */
Jim Blandy's avatar
Jim Blandy committed
737 738

int
739
x_decode_color (f, color_name, mono_color)
740
     FRAME_PTR f;
741 742
     Lisp_Object color_name;
     int mono_color;
Jim Blandy's avatar
Jim Blandy committed
743
{
744
  XColor cdef;
Jim Blandy's avatar
Jim Blandy committed
745

746
  CHECK_STRING (color_name);
Jim Blandy's avatar
Jim Blandy committed
747

748 749 750
#if 0 /* Don't do this.  It's wrong when we're not using the default
	 colormap, it makes freeing difficult, and it's probably not
	 an important optimization.  */
751
  if (strcmp (SDATA (color_name), "black") == 0)
752
    return BLACK_PIX_DEFAULT (f);
753
  else if (strcmp (SDATA (color_name), "white") == 0)
754
    return WHITE_PIX_DEFAULT (f);
755
#endif
Jim Blandy's avatar
Jim Blandy committed
756

757
  /* Return MONO_COLOR for monochrome frames.  */
758
  if (FRAME_X_DISPLAY_INFO (f)->n_planes == 1)
759
    return mono_color;
Jim Blandy's avatar
Jim Blandy committed
760

761
  /* x_defined_color is responsible for coping with failures
762
     by looking for a near-miss.  */
763
  if (x_defined_color (f, SDATA (color_name), &cdef, 1))
764 765
    return cdef.pixel;

766
  signal_error ("Undefined color", color_name);
Jim Blandy's avatar
Jim Blandy committed
767
}
768 769


Jim Blandy's avatar
Jim Blandy committed
770

Gerd Moellmann's avatar
Gerd Moellmann committed
771 772 773 774 775 776 777 778 779 780 781 782
/* Change the `wait-for-wm' frame parameter of frame F.  OLD_VALUE is
   the previous value of that parameter, NEW_VALUE is the new value.
   See also the comment of wait_for_wm in struct x_output.  */

static void
x_set_wait_for_wm (f, new_value, old_value)
     struct frame *f;
     Lisp_Object new_value, old_value;
{
  f->output_data.x->wait_for_wm = !NILP (new_value);
}

783 784
#ifdef USE_GTK

785 786
/* Set icon from FILE for frame F.  By using GTK functions the icon
   may be any format that GdkPixbuf knows about, i.e. not just bitmaps.  */
787 788

int
789
xg_set_icon (f, file)
790
    FRAME_PTR f;
791 792
    Lisp_Object file;
{
793 794
  int result = 0;
  Lisp_Object found;
795

796 797 798 799 800 801
  found = x_find_image_file (file);

  if (! NILP (found))
    {
      GdkPixbuf *pixbuf;
      GError *err = NULL;
802
      char *filename = (char *) SDATA (found);
803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821
      BLOCK_INPUT;

      pixbuf = gdk_pixbuf_new_from_file (filename, &err);

      if (pixbuf)
	{
	  gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
			       pixbuf);
	  g_object_unref (pixbuf);

	  result = 1;
	}
      else
	g_error_free (err);

      UNBLOCK_INPUT;
    }

  return result;
822
}
823 824 825 826 827 828 829

int
xg_set_icon_from_xpm_data (f, data)
    FRAME_PTR f;
    char **data;
{
  int result = 0;
830
  GdkPixbuf *pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **) data);
831 832

  if (!pixbuf)
833
    return 0;
834

835
  gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), pixbuf);
836 837 838
  g_object_unref (pixbuf);
  return 1;
}
839 840
#endif /* USE_GTK */

Gerd Moellmann's avatar
Gerd Moellmann committed
841

Jim Blandy's avatar
Jim Blandy committed
842
/* Functions called only from `x_set_frame_param'
Jim Blandy's avatar
Jim Blandy committed
843 844
   to set individual parameters.

845
   If FRAME_X_WINDOW (f) is 0,
Jim Blandy's avatar
Jim Blandy committed
846
   the frame is being created and its X-window does not exist yet.
Jim Blandy's avatar
Jim Blandy committed
847 848 849 850
   In that case, just record the parameter's new value
   in the standard place; do not attempt to change the window.  */

void
Jim Blandy's avatar
Jim Blandy committed
851 852
x_set_foreground_color (f, arg, oldval)
     struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
853 854
     Lisp_Object arg, oldval;
{
855 856
  struct x_output *x = f->output_data.x;
  unsigned long fg, old_fg;
857

858 859 860
  fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  old_fg = x->foreground_pixel;
  x->foreground_pixel = fg;
861