xfns.c 169 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>
Kenichi Handa's avatar
Kenichi Handa committed
44
#include "character.h"
Karl Heuer's avatar
Karl Heuer committed
45
#include "charset.h"
Kenichi Handa's avatar
Kenichi Handa committed
46
#include "coding.h"
Karl Heuer's avatar
Karl Heuer committed
47
#include "fontset.h"
48 49
#include "systime.h"
#include "termhooks.h"
50
#include "atimer.h"
Jim Blandy's avatar
Jim Blandy committed
51 52

#ifdef HAVE_X_WINDOWS
53 54

#include <ctype.h>
55 56
#include <sys/types.h>
#include <sys/stat.h>
Jim Blandy's avatar
Jim Blandy committed
57

58
#ifndef VMS
59
#if 1 /* Used to be #ifdef EMACS_BITMAP_FILES, but this should always work.  */
60 61
#include "bitmaps/gray.xbm"
#else
Jim Blandy's avatar
Jim Blandy committed
62
#include <X11/bitmaps/gray>
63
#endif
64 65 66
#else
#include "[.bitmaps]gray.xbm"
#endif
Jim Blandy's avatar
Jim Blandy committed
67

Jan Djärv's avatar
Jan Djärv committed
68 69 70 71
#ifdef USE_GTK
#include "gtkutil.h"
#endif

72 73 74
#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>

75
#ifndef USE_MOTIF
76 77
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/Label.h>
78
#endif /* USE_MOTIF */
79 80 81 82 83 84 85 86 87 88 89 90 91

#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"

92 93 94 95 96 97
#ifdef USE_MOTIF
#include <Xm/Xm.h>
#include <Xm/DialogS.h>
#include <Xm/FileSB.h>
#endif

98 99
/* Do the EDITRES protocol if running X11R5
   Exception: HP-UX (at least version A.09.05) has X11R5 without EditRes */
100

101
#if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES)
102
#define HACK_EDITRES
103
extern void _XEditResCheckMessages ();
104 105
#endif /* R5 + Athena */

106 107
/* Unique id counter for widgets created by the Lucid Widget Library.  */

108 109
extern LWLIB_ID widget_id_tick;

110
#ifdef USE_LUCID
111
/* This is part of a kludge--see lwlib/xlwmenu.c.  */
112
extern XFontStruct *xlwmenu_default_font;
113
#endif
114

115
extern void free_frame_menubar ();
116
extern double atof ();
117

118 119 120 121 122 123 124 125
#ifdef USE_MOTIF

/* LessTif/Motif version info.  */

static Lisp_Object Vmotif_version_string;

#endif /* USE_MOTIF */

126 127
#endif /* USE_X_TOOLKIT */

Kenichi Handa's avatar
Kenichi Handa committed
128 129 130 131 132 133 134 135
#ifdef USE_GTK

/* GTK+ version info */

static Lisp_Object Vgtk_version_string;

#endif /* USE_GTK */

Richard M. Stallman's avatar
Richard M. Stallman committed
136 137 138 139 140 141
#ifdef HAVE_X11R4
#define MAXREQUEST(dpy) (XMaxRequestSize (dpy))
#else
#define MAXREQUEST(dpy) ((dpy)->max_request_size)
#endif

142 143 144 145 146 147
/* 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;
148
char *gray_bitmap_bits = gray_bits;
149

150
/* Non-zero means we're allowed to display an hourglass cursor.  */
151

152
int display_hourglass_p;
153

154 155 156 157
/* Non-zero means prompt with the old GTK file selection dialog.  */

int x_use_old_gtk_file_dialog;

158 159 160 161
/* If non-zero, by default show hidden files in the GTK file chooser.  */

int x_gtk_show_hidden_files;

162 163 164 165
/* 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
166
/* The background and shape of the mouse pointer, and shape when not
167
   over text or in the modeline.  */
168

Jim Blandy's avatar
Jim Blandy committed
169
Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
170
Lisp_Object Vx_hourglass_pointer_shape;
171

172
/* The shape when over mouse-sensitive text.  */
173

174
Lisp_Object Vx_sensitive_text_pointer_shape;
Jim Blandy's avatar
Jim Blandy committed
175

176 177 178 179 180
/* If non-nil, the pointer shape to indicate that windows can be
   dragged horizontally.  */

Lisp_Object Vx_window_horizontal_drag_shape;

181
/* Color of chars displayed in cursor box.  */
182

Jim Blandy's avatar
Jim Blandy committed
183 184
Lisp_Object Vx_cursor_fore_pixel;

185
/* Nonzero if using X.  */
186

187
static int x_in_use;
Jim Blandy's avatar
Jim Blandy committed
188

189
/* Non nil if no window manager is in use.  */
190

Jim Blandy's avatar
Jim Blandy committed
191 192
Lisp_Object Vx_no_window_manager;

Karl Heuer's avatar
Karl Heuer committed
193
/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
194

Karl Heuer's avatar
Karl Heuer committed
195 196
Lisp_Object Vx_pixel_size_width_font_regexp;

197
Lisp_Object Qnone;
198
Lisp_Object Qsuppress_icon;
Jim Blandy's avatar
Jim Blandy committed
199
Lisp_Object Qundefined_color;
200
Lisp_Object Qcompound_text, Qcancel_timer;
Jim Blandy's avatar
Jim Blandy committed
201

202
/* In dispnew.c */
203

Jim Blandy's avatar
Jim Blandy committed
204 205
extern Lisp_Object Vwindow_system_version;

206
/* The below are defined in frame.c.  */
207

208
#if GLYPH_DEBUG
209 210 211 212
int image_cache_refcount, dpyinfo_refcount;
#endif


Jim Blandy's avatar
Jim Blandy committed
213

Richard M. Stallman's avatar
Richard M. Stallman committed
214
/* Error if we are not connected to X.  */
215

Karl Heuer's avatar
Karl Heuer committed
216
void
Richard M. Stallman's avatar
Richard M. Stallman committed
217 218
check_x ()
{
219
  if (! x_in_use)
Richard M. Stallman's avatar
Richard M. Stallman committed
220 221 222
    error ("X windows are not in use or not initialized");
}

223 224
/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
225 226

int
227
have_menus_p ()
228
{
229 230 231 232 233 234 235 236 237 238 239 240 241
  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
242
    frame = selected_frame;
243
  CHECK_LIVE_FRAME (frame);
Gerd Moellmann's avatar
Gerd Moellmann committed
244
  f = XFRAME (frame);
245
  if (! FRAME_X_P (f))
246
    error ("Non-X frame used");
247
  return f;
248 249
}

250 251 252 253
/* 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.  */

254
struct x_display_info *
255 256 257
check_x_display_info (frame)
     Lisp_Object frame;
{
258
  struct x_display_info *dpyinfo = NULL;
259

260 261
  if (NILP (frame))
    {
Gerd Moellmann's avatar
Gerd Moellmann committed
262
      struct frame *sf = XFRAME (selected_frame);
263

Gerd Moellmann's avatar
Gerd Moellmann committed
264
      if (FRAME_X_P (sf) && FRAME_LIVE_P (sf))
265
	dpyinfo = FRAME_X_DISPLAY_INFO (sf);
266
      else if (x_display_list != 0)
267
	dpyinfo = x_display_list;
268 269 270 271
      else
	error ("X windows are not in use or not initialized");
    }
  else if (STRINGP (frame))
272
    dpyinfo = x_display_info_for_name (frame);
273 274
  else
    {
275
      FRAME_PTR f = check_x_frame (frame);
276
      dpyinfo = FRAME_X_DISPLAY_INFO (f);
277
    }
278 279

  return dpyinfo;
280
}
281

282

Jim Blandy's avatar
Jim Blandy committed
283 284
/* 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
285

286
/* This function can be called during GC, so use GC_xxx type test macros.  */
287

Jim Blandy's avatar
Jim Blandy committed
288
struct frame *
289 290
x_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
Jim Blandy's avatar
Jim Blandy committed
291 292
     int wdesc;
{
Jim Blandy's avatar
Jim Blandy committed
293 294
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
295

296 297
  if (wdesc == None) return 0;

298
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
299
    {
300
      frame = XCAR (tail);
301
      if (!GC_FRAMEP (frame))
Jim Blandy's avatar
Jim Blandy committed
302
        continue;
Jim Blandy's avatar
Jim Blandy committed
303
      f = XFRAME (frame);
304
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
305
	continue;
306
      if (f->output_data.x->hourglass_window == wdesc)
307
	return f;
308
#ifdef USE_X_TOOLKIT
309
      if ((f->output_data.x->edit_widget
310
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
311 312 313
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
314
          || f->output_data.x->icon_desc == wdesc)
315 316
        return f;
#else /* not USE_X_TOOLKIT */
Jan Djärv's avatar
Jan Djärv committed
317 318 319
#ifdef USE_GTK
      if (f->output_data.x->edit_widget)
      {
Kenichi Handa's avatar
Kenichi Handa committed
320
        GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
321 322 323 324 325
        struct x_output *x = f->output_data.x;
        if (gwdesc != 0 && gwdesc == x->edit_widget)
          return f;
      }
#endif /* USE_GTK */
326
      if (FRAME_X_WINDOW (f) == wdesc
327
          || f->output_data.x->icon_desc == wdesc)
Jim Blandy's avatar
Jim Blandy committed
328
        return f;
329 330 331 332 333
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

Jan Djärv's avatar
Jan Djärv committed
334
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
335 336 337 338
/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

struct frame *
339 340
x_any_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
341 342 343
     int wdesc;
{
  Lisp_Object tail, frame;
344
  struct frame *f, *found;
345
  struct x_output *x;
346

347 348
  if (wdesc == None) return NULL;

349 350
  found = NULL;
  for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail))
351
    {
352
      frame = XCAR (tail);
353
      if (!GC_FRAMEP (frame))
354
        continue;
355

356
      f = XFRAME (frame);
357
      if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo)
358
	{
359 360
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
361
	  if (x->hourglass_window == wdesc)
362 363 364
	    found = f;
	  else if (x->widget)
	    {
Jan Djärv's avatar
Jan Djärv committed
365
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
366
              GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
367 368 369 370 371 372 373
              if (gwdesc != 0
                  && (gwdesc == x->widget
                      || gwdesc == x->edit_widget
                      || gwdesc == x->vbox_widget
                      || gwdesc == x->menubar_widget))
                found = f;
#else
374 375
	      if (wdesc == XtWindow (x->widget)
		  || wdesc == XtWindow (x->column_widget)
376 377 378 379 380
		  || 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
381
#endif
382 383 384 385
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
386
	}
Jim Blandy's avatar
Jim Blandy committed
387
    }
388

389
  return found;
Jim Blandy's avatar
Jim Blandy committed
390
}
391

392 393 394 395 396 397 398 399 400
/* 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;
401
  struct x_output *x;
402

403 404
  if (wdesc == None) return 0;

405
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
406
    {
407
      frame = XCAR (tail);
408 409 410
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
411
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
412
	continue;
413
      x = f->output_data.x;
414
      /* This frame matches if the window is any of its widgets.  */
415
      if (x->hourglass_window == wdesc)
416 417
	return f;
      else if (x->widget)
418
	{
Jan Djärv's avatar
Jan Djärv committed
419
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
420
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
421 422 423 424 425 426
          if (gwdesc != 0
              && (gwdesc == x->widget
                  || gwdesc == x->edit_widget
                  || gwdesc == x->vbox_widget))
            return f;
#else
427 428
	  if (wdesc == XtWindow (x->widget)
	      || wdesc == XtWindow (x->column_widget)
429 430
	      || wdesc == XtWindow (x->edit_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
431
#endif
432 433 434
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* A tooltip frame.  */
435 436 437 438 439
	return f;
    }
  return 0;
}

440 441 442 443 444 445 446 447 448
/* 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;
449
  struct x_output *x;
450

451 452
  if (wdesc == None) return 0;

453
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
454
    {
455
      frame = XCAR (tail);
456 457 458
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
459
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
460
	continue;
461
      x = f->output_data.x;
462
      /* Match if the window is this frame's menubar.  */
Jan Djärv's avatar
Jan Djärv committed
463 464 465
#ifdef USE_GTK
      if (x->menubar_widget)
        {
Kenichi Handa's avatar
Kenichi Handa committed
466
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
467
          int found = 0;
468

Jan Djärv's avatar
Jan Djärv committed
469 470 471 472 473 474 475 476 477
          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
478 479
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
480
	return f;
Jan Djärv's avatar
Jan Djärv committed
481
#endif
482 483 484 485
    }
  return 0;
}

486 487 488 489
/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
490 491
x_top_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
492 493 494 495
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
496
  struct x_output *x;
497

498 499
  if (wdesc == None) return 0;

500
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
501
    {
502
      frame = XCAR (tail);
503
      if (!GC_FRAMEP (frame))
504 505
        continue;
      f = XFRAME (frame);
506
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
507
	continue;
508
      x = f->output_data.x;
509 510 511 512

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
Jan Djärv's avatar
Jan Djärv committed
513
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
514
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
515 516 517
          if (gwdesc == x->widget)
            return f;
#else
518 519
	  if (wdesc == XtWindow (x->widget))
	    return f;
520 521 522
#if 0 /* I don't know why it did this,
	 but it seems logically wrong,
	 and it causes trouble for MapNotify events.  */
523
	  /* Match if the window is this frame's menubar.  */
524
	  if (x->menubar_widget
525 526
	      && wdesc == XtWindow (x->menubar_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
527
#endif
528
#endif
529 530 531 532
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
533 534 535
    }
  return 0;
}
Jan Djärv's avatar
Jan Djärv committed
536
#endif /* USE_X_TOOLKIT || USE_GTK */
Jim Blandy's avatar
Jim Blandy committed
537

538 539


540 541
static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
542

543
void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
Gerd Moellmann's avatar
Gerd Moellmann committed
544
static void x_set_wait_for_wm P_ ((struct frame *, Lisp_Object, Lisp_Object));
545 546 547 548 549 550 551 552 553 554
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));
555
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
556 557 558 559 560 561 562 563 564
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
565

566

567
/* Store the screen positions of frame F into XPTR and YPTR.
568 569 570 571 572 573 574 575
   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;
{
576 577 578 579
  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;
580

581 582
  BLOCK_INPUT;

583
  x_catch_errors (FRAME_X_DISPLAY (f));
584

585 586 587 588 589 590 591 592
  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 (;;)
593
    {
594 595 596
      Window wm_window, rootw;
      Window *tmp_children;
      unsigned int tmp_nchildren;
597
      int success;
598

599 600
      success = XQueryTree (FRAME_X_DISPLAY (f), win, &rootw,
			    &wm_window, &tmp_children, &tmp_nchildren);
601

602
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
603

604 605 606 607 608 609
      /* Don't free tmp_children if XQueryTree failed.  */
      if (! success)
	break;

      XFree ((char *) tmp_children);

610 611
      if (wm_window == rootw || had_errors)
        break;
612

613 614
      win = wm_window;
    }
615

616 617
  if (! had_errors)
    {
618
      unsigned int ign;
619
      Window child, rootw;
620

621 622 623 624 625 626 627 628 629 630 631 632 633 634
      /* 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
      */
635
      XTranslateCoordinates (FRAME_X_DISPLAY (f),
636

637 638
			     /* From-window, to-window.  */
			     FRAME_X_DISPLAY_INFO (f)->root_window,
639
                             FRAME_X_WINDOW (f),
640

641
			     /* From-position, to-position.  */
642
                             real_x, real_y, &win_x, &win_y,
643

644 645
			     /* Child of win.  */
			     &child);
646

647
      if (FRAME_X_WINDOW (f) == FRAME_OUTER_WINDOW (f))
648
	{
649 650
          outer_x = win_x;
          outer_y = win_y;
651
	}
652 653 654
      else
        {
          XTranslateCoordinates (FRAME_X_DISPLAY (f),
655

656 657 658
                                 /* From-window, to-window.  */
                                 FRAME_X_DISPLAY_INFO (f)->root_window,
                                 FRAME_OUTER_WINDOW (f),
659

660 661
                                 /* From-position, to-position.  */
                                 real_x, real_y, &outer_x, &outer_y,
662

663 664
                                 /* Child of win.  */
                                 &child);
665
	}
666

667 668
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
    }
669

670
  x_uncatch_errors ();
671

672 673 674
  UNBLOCK_INPUT;

  if (had_errors) return;
675

676 677 678 679 680
  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;
681 682 683

  *xptr = real_x;
  *yptr = real_y;
684 685
}

Jim Blandy's avatar
Jim Blandy committed
686

687

688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704

/* 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;
    }
}


705 706 707 708
/* 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.  */
709

Jim Blandy's avatar
Jim Blandy committed
710
int
711 712 713 714 715
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
716
{
717 718 719
  int success_p;
  Display *dpy = FRAME_X_DISPLAY (f);
  Colormap cmap = FRAME_X_COLORMAP (f);
Jim Blandy's avatar
Jim Blandy committed
720 721

  BLOCK_INPUT;
722 723 724
  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
725 726
  UNBLOCK_INPUT;

727
  return success_p;
Jim Blandy's avatar
Jim Blandy committed
728 729
}

730 731 732 733

/* 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
734 735

int
736
x_decode_color (f, color_name, mono_color)
737
     FRAME_PTR f;
738 739
     Lisp_Object color_name;
     int mono_color;
Jim Blandy's avatar
Jim Blandy committed
740
{
741
  XColor cdef;
Jim Blandy's avatar
Jim Blandy committed
742

743
  CHECK_STRING (color_name);
Jim Blandy's avatar
Jim Blandy committed
744

745 746 747
#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.  */
748
  if (strcmp (SDATA (color_name), "black") == 0)
749
    return BLACK_PIX_DEFAULT (f);
750
  else if (strcmp (SDATA (color_name), "white") == 0)
751
    return WHITE_PIX_DEFAULT (f);
752
#endif
Jim Blandy's avatar
Jim Blandy committed
753

754
  /* Return MONO_COLOR for monochrome frames.  */
755
  if (FRAME_X_DISPLAY_INFO (f)->n_planes == 1)
756
    return mono_color;
Jim Blandy's avatar
Jim Blandy committed
757

758
  /* x_defined_color is responsible for coping with failures
759
     by looking for a near-miss.  */
760
  if (x_defined_color (f, SDATA (color_name), &cdef, 1))
761 762
    return cdef.pixel;

763 764 765
  Fsignal (Qerror, Fcons (build_string ("Undefined color"),
			  Fcons (color_name, Qnil)));
  return 0;
Jim Blandy's avatar
Jim Blandy committed
766
}
767 768


Jim Blandy's avatar
Jim Blandy committed
769

Gerd Moellmann's avatar
Gerd Moellmann committed
770 771 772 773 774 775 776 777 778 779 780 781
/* 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);
}

782 783
#ifdef USE_GTK

784 785
/* 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.  */
786 787

int
Kenichi Handa's avatar
Kenichi Handa committed
788
xg_set_icon (f, file)
789
    FRAME_PTR f;
790 791
    Lisp_Object file;
{
792 793
  int result = 0;
  Lisp_Object found;
794

795 796 797 798 799 800
  found = x_find_image_file (file);

  if (! NILP (found))
    {
      GdkPixbuf *pixbuf;
      GError *err = NULL;
801
      char *filename = (char *) SDATA (found);
802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820
      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;
821
}
822 823 824 825 826 827 828

int
xg_set_icon_from_xpm_data (f, data)
    FRAME_PTR f;
    char **data;
{
  int result = 0;
829
  GdkPixbuf *pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **) data);
830 831

  if (!pixbuf)
832
    return 0;
833

834
  gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), pixbuf);
835 836 837
  g_object_unref (pixbuf);
  return 1;
}
838 839
#endif /* USE_GTK */

Gerd Moellmann's avatar
Gerd Moellmann committed
840

Jim Blandy's avatar
Jim Blandy committed
841
/* Functions called only from `x_set_frame_param'
Jim Blandy's avatar
Jim Blandy committed
842 843
   to set individual parameters.

844
   If FRAME_X_WINDOW (f) is 0,
Jim Blandy's avatar
Jim Blandy committed
845
   the frame is being created and its X-window does not exist yet.
Jim Blandy's avatar
Jim Blandy committed
846 847 848 849
   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
850 851
x_set_foreground_color (f, arg, oldval)
     struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
852 853
     Lisp_Object arg, oldval;
{
854 855
  struct x_output *x = f->output_data.x;
  unsigned long fg, old_fg;
856

857 858 859
  fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  old_fg = x->foreground_pixel;
  x->foreground_pixel = fg;
860

861
  if (FRAME_X_WINDOW (f) != 0)
Jim Blandy's avatar
Jim Blandy committed
862
    {
863
      Display *dpy = FRAME_X_DISPLAY (f);
864