xfns.c 170 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,
3
                 2001, 2002, 2003, 2004, 2005, 2006 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
Jim Blandy's avatar
Jim Blandy committed
9
the Free Software Foundation; either version 2, 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

153 154 155 156
/* Non-zero means prompt with the old GTK file selection dialog.  */

int x_use_old_gtk_file_dialog;

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

int x_gtk_show_hidden_files;

161 162 163 164
/* 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
165
/* The background and shape of the mouse pointer, and shape when not
166
   over text or in the modeline.  */
167

Jim Blandy's avatar
Jim Blandy committed
168
Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
169
Lisp_Object Vx_hourglass_pointer_shape;
170

171
/* The shape when over mouse-sensitive text.  */
172

173
Lisp_Object Vx_sensitive_text_pointer_shape;
Jim Blandy's avatar
Jim Blandy committed
174

175 176 177 178 179
/* If non-nil, the pointer shape to indicate that windows can be
   dragged horizontally.  */

Lisp_Object Vx_window_horizontal_drag_shape;

180
/* Color of chars displayed in cursor box.  */
181

Jim Blandy's avatar
Jim Blandy committed
182 183
Lisp_Object Vx_cursor_fore_pixel;

184
/* Nonzero if using X.  */
185

186
static int x_in_use;
Jim Blandy's avatar
Jim Blandy committed
187

188
/* Non nil if no window manager is in use.  */
189

Jim Blandy's avatar
Jim Blandy committed
190 191
Lisp_Object Vx_no_window_manager;

Karl Heuer's avatar
Karl Heuer committed
192
/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
193

Karl Heuer's avatar
Karl Heuer committed
194 195
Lisp_Object Vx_pixel_size_width_font_regexp;

196
Lisp_Object Qnone;
197
Lisp_Object Qsuppress_icon;
Jim Blandy's avatar
Jim Blandy committed
198
Lisp_Object Qundefined_color;
199
Lisp_Object Qcompound_text, Qcancel_timer;
Jim Blandy's avatar
Jim Blandy committed
200

201
/* In dispnew.c */
202

Jim Blandy's avatar
Jim Blandy committed
203 204
extern Lisp_Object Vwindow_system_version;

205
/* The below are defined in frame.c.  */
206

207
#if GLYPH_DEBUG
208 209 210 211
int image_cache_refcount, dpyinfo_refcount;
#endif


Jim Blandy's avatar
Jim Blandy committed
212

Richard M. Stallman's avatar
Richard M. Stallman committed
213
/* Error if we are not connected to X.  */
214

Karl Heuer's avatar
Karl Heuer committed
215
void
Richard M. Stallman's avatar
Richard M. Stallman committed
216 217
check_x ()
{
218
  if (! x_in_use)
Richard M. Stallman's avatar
Richard M. Stallman committed
219 220 221
    error ("X windows are not in use or not initialized");
}

222 223
/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
224 225

int
226
have_menus_p ()
227
{
228 229 230 231 232 233 234 235 236 237 238 239 240
  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
241
    frame = selected_frame;
242
  CHECK_LIVE_FRAME (frame);
Gerd Moellmann's avatar
Gerd Moellmann committed
243
  f = XFRAME (frame);
244
  if (! FRAME_X_P (f))
245
    error ("Non-X frame used");
246
  return f;
247 248
}

249 250 251 252
/* 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.  */

253
struct x_display_info *
254 255 256
check_x_display_info (frame)
     Lisp_Object frame;
{
257
  struct x_display_info *dpyinfo = NULL;
258

259 260
  if (NILP (frame))
    {
Gerd Moellmann's avatar
Gerd Moellmann committed
261
      struct frame *sf = XFRAME (selected_frame);
262

Gerd Moellmann's avatar
Gerd Moellmann committed
263
      if (FRAME_X_P (sf) && FRAME_LIVE_P (sf))
264
	dpyinfo = FRAME_X_DISPLAY_INFO (sf);
265
      else if (x_display_list != 0)
266
	dpyinfo = x_display_list;
267 268 269 270
      else
	error ("X windows are not in use or not initialized");
    }
  else if (STRINGP (frame))
271
    dpyinfo = x_display_info_for_name (frame);
272 273
  else
    {
274
      FRAME_PTR f = check_x_frame (frame);
275
      dpyinfo = FRAME_X_DISPLAY_INFO (f);
276
    }
277 278

  return dpyinfo;
279
}
280

281

Jim Blandy's avatar
Jim Blandy committed
282 283
/* 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
284

285
/* This function can be called during GC, so use GC_xxx type test macros.  */
286

Jim Blandy's avatar
Jim Blandy committed
287
struct frame *
288 289
x_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
Jim Blandy's avatar
Jim Blandy committed
290 291
     int wdesc;
{
Jim Blandy's avatar
Jim Blandy committed
292 293
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
294

295 296
  if (wdesc == None) return 0;

297
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
298
    {
299
      frame = XCAR (tail);
300
      if (!GC_FRAMEP (frame))
Jim Blandy's avatar
Jim Blandy committed
301
        continue;
Jim Blandy's avatar
Jim Blandy committed
302
      f = XFRAME (frame);
303
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
304
	continue;
305
      if (f->output_data.x->hourglass_window == wdesc)
306
	return f;
307
#ifdef USE_X_TOOLKIT
308
      if ((f->output_data.x->edit_widget
309
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
310 311 312
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
313
          || f->output_data.x->icon_desc == wdesc)
314 315
        return f;
#else /* not USE_X_TOOLKIT */
Jan Djärv's avatar
Jan Djärv committed
316 317 318
#ifdef USE_GTK
      if (f->output_data.x->edit_widget)
      {
319
        GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
320 321 322 323 324
        struct x_output *x = f->output_data.x;
        if (gwdesc != 0 && gwdesc == x->edit_widget)
          return f;
      }
#endif /* USE_GTK */
325
      if (FRAME_X_WINDOW (f) == wdesc
326
          || f->output_data.x->icon_desc == wdesc)
Jim Blandy's avatar
Jim Blandy committed
327
        return f;
328 329 330 331 332
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

Jan Djärv's avatar
Jan Djärv committed
333
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
334 335 336 337
/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

struct frame *
338 339
x_any_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
340 341 342
     int wdesc;
{
  Lisp_Object tail, frame;
343
  struct frame *f, *found;
344
  struct x_output *x;
345

346 347
  if (wdesc == None) return NULL;

348 349
  found = NULL;
  for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail))
350
    {
351
      frame = XCAR (tail);
352
      if (!GC_FRAMEP (frame))
353
        continue;
354

355
      f = XFRAME (frame);
356
      if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo)
357
	{
358 359
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
360
	  if (x->hourglass_window == wdesc)
361 362 363
	    found = f;
	  else if (x->widget)
	    {
Jan Djärv's avatar
Jan Djärv committed
364
#ifdef USE_GTK
365
              GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
366 367 368 369 370 371 372
              if (gwdesc != 0
                  && (gwdesc == x->widget
                      || gwdesc == x->edit_widget
                      || gwdesc == x->vbox_widget
                      || gwdesc == x->menubar_widget))
                found = f;
#else
373 374
	      if (wdesc == XtWindow (x->widget)
		  || wdesc == XtWindow (x->column_widget)
375 376 377 378 379
		  || 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
380
#endif
381 382 383 384
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
385
	}
Jim Blandy's avatar
Jim Blandy committed
386
    }
387

388
  return found;
Jim Blandy's avatar
Jim Blandy committed
389
}
390

391 392 393 394 395 396 397 398 399
/* 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;
400
  struct x_output *x;
401

402 403
  if (wdesc == None) return 0;

404
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
405
    {
406
      frame = XCAR (tail);
407 408 409
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
410
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
411
	continue;
412
      x = f->output_data.x;
413
      /* This frame matches if the window is any of its widgets.  */
414
      if (x->hourglass_window == wdesc)
415 416
	return f;
      else if (x->widget)
417
	{
Jan Djärv's avatar
Jan Djärv committed
418
#ifdef USE_GTK
419
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
420 421 422 423 424 425
          if (gwdesc != 0
              && (gwdesc == x->widget
                  || gwdesc == x->edit_widget
                  || gwdesc == x->vbox_widget))
            return f;
#else
426 427
	  if (wdesc == XtWindow (x->widget)
	      || wdesc == XtWindow (x->column_widget)
428 429
	      || wdesc == XtWindow (x->edit_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
430
#endif
431 432 433
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* A tooltip frame.  */
434 435 436 437 438
	return f;
    }
  return 0;
}

439 440 441 442 443 444 445 446 447
/* 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;
448
  struct x_output *x;
449

450 451
  if (wdesc == None) return 0;

452
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
453
    {
454
      frame = XCAR (tail);
455 456 457
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
458
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
459
	continue;
460
      x = f->output_data.x;
461
      /* Match if the window is this frame's menubar.  */
Jan Djärv's avatar
Jan Djärv committed
462 463 464
#ifdef USE_GTK
      if (x->menubar_widget)
        {
465
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
466
          int found = 0;
467

Jan Djärv's avatar
Jan Djärv committed
468 469 470 471 472 473 474 475 476
          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
477 478
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
479
	return f;
Jan Djärv's avatar
Jan Djärv committed
480
#endif
481 482 483 484
    }
  return 0;
}

485 486 487 488
/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
489 490
x_top_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
491 492 493 494
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
495
  struct x_output *x;
496

497 498
  if (wdesc == None) return 0;

499
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
500
    {
501
      frame = XCAR (tail);
502
      if (!GC_FRAMEP (frame))
503 504
        continue;
      f = XFRAME (frame);
505
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
506
	continue;
507
      x = f->output_data.x;
508 509 510 511

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
Jan Djärv's avatar
Jan Djärv committed
512
#ifdef USE_GTK
513
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
514 515 516
          if (gwdesc == x->widget)
            return f;
#else
517 518
	  if (wdesc == XtWindow (x->widget))
	    return f;
519 520 521
#if 0 /* I don't know why it did this,
	 but it seems logically wrong,
	 and it causes trouble for MapNotify events.  */
522
	  /* Match if the window is this frame's menubar.  */
523
	  if (x->menubar_widget
524 525
	      && wdesc == XtWindow (x->menubar_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
526
#endif
527
#endif
528 529 530 531
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
532 533 534
    }
  return 0;
}
Jan Djärv's avatar
Jan Djärv committed
535
#endif /* USE_X_TOOLKIT || USE_GTK */
Jim Blandy's avatar
Jim Blandy committed
536

537 538


539 540
static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
541

542
void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
Gerd Moellmann's avatar
Gerd Moellmann committed
543
static void x_set_wait_for_wm P_ ((struct frame *, Lisp_Object, Lisp_Object));
544 545 546 547 548 549 550 551 552 553
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));
554
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
555 556 557 558 559 560 561 562 563
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
564

565

566
/* Store the screen positions of frame F into XPTR and YPTR.
567 568 569 570 571 572 573 574
   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;
{
575 576 577 578
  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;
579

580
  int count;
581

582 583 584
  BLOCK_INPUT;

  count = x_catch_errors (FRAME_X_DISPLAY (f));
585

586 587 588 589 590 591 592 593
  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 (;;)
594
    {
595 596 597
      Window wm_window, rootw;
      Window *tmp_children;
      unsigned int tmp_nchildren;
598
      int success;
599

600 601
      success = XQueryTree (FRAME_X_DISPLAY (f), win, &rootw,
			    &wm_window, &tmp_children, &tmp_nchildren);
602

603
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
604

605 606 607 608 609 610
      /* Don't free tmp_children if XQueryTree failed.  */
      if (! success)
	break;

      XFree ((char *) tmp_children);

611 612
      if (wm_window == rootw || had_errors)
        break;
613

614 615
      win = wm_window;
    }
616

617 618
  if (! had_errors)
    {
619
      unsigned int ign;
620
      Window child, rootw;
621

622 623 624 625 626 627 628 629 630 631 632 633 634 635
      /* 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
      */
636
      XTranslateCoordinates (FRAME_X_DISPLAY (f),
637

638 639
			     /* From-window, to-window.  */
			     FRAME_X_DISPLAY_INFO (f)->root_window,
640
                             FRAME_X_WINDOW (f),
641

642
			     /* From-position, to-position.  */
643
                             real_x, real_y, &win_x, &win_y,
644

645 646
			     /* Child of win.  */
			     &child);
647

648
      if (FRAME_X_WINDOW (f) == FRAME_OUTER_WINDOW (f))
649
	{
650 651
          outer_x = win_x;
          outer_y = win_y;
652
	}
653 654 655
      else
        {
          XTranslateCoordinates (FRAME_X_DISPLAY (f),
656

657 658 659
                                 /* From-window, to-window.  */
                                 FRAME_X_DISPLAY_INFO (f)->root_window,
                                 FRAME_OUTER_WINDOW (f),
660

661 662
                                 /* From-position, to-position.  */
                                 real_x, real_y, &outer_x, &outer_y,
663

664 665
                                 /* Child of win.  */
                                 &child);
666
	}
667

668 669
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
    }
670

671
  x_uncatch_errors (FRAME_X_DISPLAY (f), count);
672

673 674 675
  UNBLOCK_INPUT;

  if (had_errors) return;
676

677 678 679 680 681
  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;
682 683 684

  *xptr = real_x;
  *yptr = real_y;
685 686
}

Jim Blandy's avatar
Jim Blandy committed
687

688

689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705

/* 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;
    }
}


706 707 708 709
/* 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.  */
710

Jim Blandy's avatar
Jim Blandy committed
711
int
712 713 714 715 716
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
717
{
718 719 720
  int success_p;
  Display *dpy = FRAME_X_DISPLAY (f);
  Colormap cmap = FRAME_X_COLORMAP (f);
Jim Blandy's avatar
Jim Blandy committed
721 722

  BLOCK_INPUT;
723 724 725
  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
726 727
  UNBLOCK_INPUT;

728
  return success_p;
Jim Blandy's avatar
Jim Blandy committed
729 730
}

731 732 733 734

/* 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
735 736

int
737
x_decode_color (f, color_name, mono_color)
738
     FRAME_PTR f;
739 740
     Lisp_Object color_name;
     int mono_color;
Jim Blandy's avatar
Jim Blandy committed
741
{
742
  XColor cdef;
Jim Blandy's avatar
Jim Blandy committed
743

744
  CHECK_STRING (color_name);
Jim Blandy's avatar
Jim Blandy committed
745

746 747 748
#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.  */
749
  if (strcmp (SDATA (color_name), "black") == 0)
750
    return BLACK_PIX_DEFAULT (f);
751
  else if (strcmp (SDATA (color_name), "white") == 0)
752
    return WHITE_PIX_DEFAULT (f);
753
#endif
Jim Blandy's avatar
Jim Blandy committed
754

755
  /* Return MONO_COLOR for monochrome frames.  */
756
  if (FRAME_X_DISPLAY_INFO (f)->n_planes == 1)
757
    return mono_color;
Jim Blandy's avatar
Jim Blandy committed
758

759
  /* x_defined_color is responsible for coping with failures
760
     by looking for a near-miss.  */
761
  if (x_defined_color (f, SDATA (color_name), &cdef, 1))
762 763
    return cdef.pixel;

764 765 766
  Fsignal (Qerror, Fcons (build_string ("Undefined color"),
			  Fcons (color_name, Qnil)));
  return 0;
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;
{
793 794 795
  struct gcpro gcpro1;
  int result = 0;
  Lisp_Object found;
796

797
  GCPRO1 (found);
798

799 800 801 802 803 804
  found = x_find_image_file (file);

  if (! NILP (found))
    {
      GdkPixbuf *pixbuf;
      GError *err = NULL;
805
      char *filename = (char *) SDATA (found);
806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
      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;
    }

  UNGCPRO;
  return result;
826
}
827 828 829 830 831 832 833

int
xg_set_icon_from_xpm_data (f, data)
    FRAME_PTR f;
    char **data;
{
  int result = 0;
834
  GdkPixbuf *pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **) data);
835 836

  if (!pixbuf)
837
    return 0;
838

839
  gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), pixbuf);
840 841 842
  g_object_unref (pixbuf);
  return 1;
}
843 844
#endif /* USE_GTK */

Gerd Moellmann's avatar
Gerd Moellmann committed
845

Jim Blandy's avatar
Jim Blandy committed
846
/* Functions called only from `x_set_frame_param'
Jim Blandy's avatar
Jim Blandy committed
847 848
   to set individual parameters.

849
   If FRAME_X_WINDOW (f) is 0,
Jim Blandy's avatar
Jim Blandy committed
850
   the frame is being created and its X-window does not exist yet.
Jim Blandy's avatar
Jim Blandy committed
851 852 853 854
   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
855 856
x_set_foreground_color (f, arg, oldval)
     struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
857 858
     Lisp_Object arg, oldval;
{
859 860
  struct x_output *x = f->output_data.x;
  unsigned long fg, old_fg;
861

862 863 864
  fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  old_fg = x->foreground_pixel;
  x->foreground_pixel = fg;
865

866
  if (FRAME_X_WINDOW (f) != 0)
Jim Blandy's avatar
Jim Blandy committed
867
    {
868
      Display *dpy = FRAME_X_DISPLAY (f);
869

870 871 872
      BLOCK_INPUT;
      XSetForeground (dpy, x->normal_gc, fg);
      XSetBackground (dpy, x->reverse_gc, fg);
873

874 875 876 877 878 879
      if (x->cursor_pixel == old_fg)
	{
	  unload_color (f, x->cursor_pixel);
	  x->cursor_pixel = x_copy_color (f, fg);
	  XSetBackground (dpy, x->cursor_gc, x->cursor_pixel);
	}
880

Jim Blandy's avatar
Jim Blandy committed
881
      UNBLOCK_INPUT;
882

883
      update_face_from_frame_parameter (f, Qforeground_color, arg);
884

885
      if (FRAME_VISIBLE_P (f))
Jim Blandy's avatar
Jim Blandy committed
886
        redraw_frame (f);