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,
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

Kenichi Handa's avatar
Kenichi Handa committed
52 53 54 55
#ifdef USE_FONT_BACKEND
#include "font.h"
#endif	/* USE_FONT_BACKEND */

Jim Blandy's avatar
Jim Blandy committed
56
#ifdef HAVE_X_WINDOWS
57 58

#include <ctype.h>
59 60
#include <sys/types.h>
#include <sys/stat.h>
Jim Blandy's avatar
Jim Blandy committed
61

62
#ifndef VMS
63
#if 1 /* Used to be #ifdef EMACS_BITMAP_FILES, but this should always work.  */
64 65
#include "bitmaps/gray.xbm"
#else
Jim Blandy's avatar
Jim Blandy committed
66
#include <X11/bitmaps/gray>
67
#endif
68 69 70
#else
#include "[.bitmaps]gray.xbm"
#endif
Jim Blandy's avatar
Jim Blandy committed
71

Jan Djärv's avatar
Jan Djärv committed
72 73 74 75
#ifdef USE_GTK
#include "gtkutil.h"
#endif

76 77 78
#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>

79
#ifndef USE_MOTIF
80 81
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/Label.h>
82
#endif /* USE_MOTIF */
83 84 85 86 87 88 89 90 91 92 93 94 95

#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"

96 97 98 99 100 101
#ifdef USE_MOTIF
#include <Xm/Xm.h>
#include <Xm/DialogS.h>
#include <Xm/FileSB.h>
#endif

102 103
/* Do the EDITRES protocol if running X11R5
   Exception: HP-UX (at least version A.09.05) has X11R5 without EditRes */
104

105
#if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES)
106
#define HACK_EDITRES
107
extern void _XEditResCheckMessages ();
108 109
#endif /* R5 + Athena */

110 111
/* Unique id counter for widgets created by the Lucid Widget Library.  */

112 113
extern LWLIB_ID widget_id_tick;

114
#ifdef USE_LUCID
115
/* This is part of a kludge--see lwlib/xlwmenu.c.  */
116
extern XFontStruct *xlwmenu_default_font;
117
#endif
118

119
extern void free_frame_menubar ();
120
extern double atof ();
121

122 123 124 125 126 127 128 129
#ifdef USE_MOTIF

/* LessTif/Motif version info.  */

static Lisp_Object Vmotif_version_string;

#endif /* USE_MOTIF */

130 131
#endif /* USE_X_TOOLKIT */

Kenichi Handa's avatar
Kenichi Handa committed
132 133 134 135 136 137 138 139
#ifdef USE_GTK

/* GTK+ version info */

static Lisp_Object Vgtk_version_string;

#endif /* USE_GTK */

Richard M. Stallman's avatar
Richard M. Stallman committed
140 141 142 143 144 145
#ifdef HAVE_X11R4
#define MAXREQUEST(dpy) (XMaxRequestSize (dpy))
#else
#define MAXREQUEST(dpy) ((dpy)->max_request_size)
#endif

146 147 148 149 150 151
/* 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;
152
char *gray_bitmap_bits = gray_bits;
153

154
/* Non-zero means we're allowed to display an hourglass cursor.  */
155

156
int display_hourglass_p;
157

158 159 160 161
/* Non-zero means prompt with the old GTK file selection dialog.  */

int x_use_old_gtk_file_dialog;

162 163 164 165
/* If non-zero, by default show hidden files in the GTK file chooser.  */

int x_gtk_show_hidden_files;

166 167 168 169
/* 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
170
/* The background and shape of the mouse pointer, and shape when not
171
   over text or in the modeline.  */
172

Jim Blandy's avatar
Jim Blandy committed
173
Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
174
Lisp_Object Vx_hourglass_pointer_shape;
175

176
/* The shape when over mouse-sensitive text.  */
177

178
Lisp_Object Vx_sensitive_text_pointer_shape;
Jim Blandy's avatar
Jim Blandy committed
179

180 181 182 183 184
/* If non-nil, the pointer shape to indicate that windows can be
   dragged horizontally.  */

Lisp_Object Vx_window_horizontal_drag_shape;

185
/* Color of chars displayed in cursor box.  */
186

Jim Blandy's avatar
Jim Blandy committed
187 188
Lisp_Object Vx_cursor_fore_pixel;

189
/* Nonzero if using X.  */
190

191
static int x_in_use;
Jim Blandy's avatar
Jim Blandy committed
192

193
/* Non nil if no window manager is in use.  */
194

Jim Blandy's avatar
Jim Blandy committed
195 196
Lisp_Object Vx_no_window_manager;

Karl Heuer's avatar
Karl Heuer committed
197
/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
198

Karl Heuer's avatar
Karl Heuer committed
199 200
Lisp_Object Vx_pixel_size_width_font_regexp;

201
Lisp_Object Qnone;
202
Lisp_Object Qsuppress_icon;
Jim Blandy's avatar
Jim Blandy committed
203
Lisp_Object Qundefined_color;
204
Lisp_Object Qcompound_text, Qcancel_timer;
Jim Blandy's avatar
Jim Blandy committed
205

206
/* In dispnew.c */
207

Jim Blandy's avatar
Jim Blandy committed
208 209
extern Lisp_Object Vwindow_system_version;

210
/* The below are defined in frame.c.  */
211

212
#if GLYPH_DEBUG
213 214 215 216
int image_cache_refcount, dpyinfo_refcount;
#endif


Jim Blandy's avatar
Jim Blandy committed
217

Richard M. Stallman's avatar
Richard M. Stallman committed
218
/* Error if we are not connected to X.  */
219

Karl Heuer's avatar
Karl Heuer committed
220
void
Richard M. Stallman's avatar
Richard M. Stallman committed
221 222
check_x ()
{
223
  if (! x_in_use)
Richard M. Stallman's avatar
Richard M. Stallman committed
224 225 226
    error ("X windows are not in use or not initialized");
}

227 228
/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
229 230

int
231
have_menus_p ()
232
{
233 234 235 236 237 238 239 240 241 242 243 244 245
  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
246
    frame = selected_frame;
247
  CHECK_LIVE_FRAME (frame);
Gerd Moellmann's avatar
Gerd Moellmann committed
248
  f = XFRAME (frame);
249
  if (! FRAME_X_P (f))
250
    error ("Non-X frame used");
251
  return f;
252 253
}

254 255 256 257
/* 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.  */

258
struct x_display_info *
259 260 261
check_x_display_info (frame)
     Lisp_Object frame;
{
262
  struct x_display_info *dpyinfo = NULL;
263

264 265
  if (NILP (frame))
    {
Gerd Moellmann's avatar
Gerd Moellmann committed
266
      struct frame *sf = XFRAME (selected_frame);
267

Gerd Moellmann's avatar
Gerd Moellmann committed
268
      if (FRAME_X_P (sf) && FRAME_LIVE_P (sf))
269
	dpyinfo = FRAME_X_DISPLAY_INFO (sf);
270
      else if (x_display_list != 0)
271
	dpyinfo = x_display_list;
272 273 274 275
      else
	error ("X windows are not in use or not initialized");
    }
  else if (STRINGP (frame))
276
    dpyinfo = x_display_info_for_name (frame);
277 278
  else
    {
279
      FRAME_PTR f = check_x_frame (frame);
280
      dpyinfo = FRAME_X_DISPLAY_INFO (f);
281
    }
282 283

  return dpyinfo;
284
}
285

286

Jim Blandy's avatar
Jim Blandy committed
287 288
/* 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
289

290
/* This function can be called during GC, so use GC_xxx type test macros.  */
291

Jim Blandy's avatar
Jim Blandy committed
292
struct frame *
293 294
x_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
Jim Blandy's avatar
Jim Blandy committed
295 296
     int wdesc;
{
Jim Blandy's avatar
Jim Blandy committed
297 298
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
299

300 301
  if (wdesc == None) return 0;

302
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
303
    {
304
      frame = XCAR (tail);
305
      if (!GC_FRAMEP (frame))
Jim Blandy's avatar
Jim Blandy committed
306
        continue;
Jim Blandy's avatar
Jim Blandy committed
307
      f = XFRAME (frame);
308
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
309
	continue;
310
      if (f->output_data.x->hourglass_window == wdesc)
311
	return f;
312
#ifdef USE_X_TOOLKIT
313
      if ((f->output_data.x->edit_widget
314
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
315 316 317
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
318
          || f->output_data.x->icon_desc == wdesc)
319 320
        return f;
#else /* not USE_X_TOOLKIT */
Jan Djärv's avatar
Jan Djärv committed
321 322 323
#ifdef USE_GTK
      if (f->output_data.x->edit_widget)
      {
Kenichi Handa's avatar
Kenichi Handa committed
324
        GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
325 326 327 328 329
        struct x_output *x = f->output_data.x;
        if (gwdesc != 0 && gwdesc == x->edit_widget)
          return f;
      }
#endif /* USE_GTK */
330
      if (FRAME_X_WINDOW (f) == wdesc
331
          || f->output_data.x->icon_desc == wdesc)
Jim Blandy's avatar
Jim Blandy committed
332
        return f;
333 334 335 336 337
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

Jan Djärv's avatar
Jan Djärv committed
338
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
339 340 341 342
/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

struct frame *
343 344
x_any_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
345 346 347
     int wdesc;
{
  Lisp_Object tail, frame;
348
  struct frame *f, *found;
349
  struct x_output *x;
350

351 352
  if (wdesc == None) return NULL;

353 354
  found = NULL;
  for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail))
355
    {
356
      frame = XCAR (tail);
357
      if (!GC_FRAMEP (frame))
358
        continue;
359

360
      f = XFRAME (frame);
361
      if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo)
362
	{
363 364
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
365
	  if (x->hourglass_window == wdesc)
366 367 368
	    found = f;
	  else if (x->widget)
	    {
Jan Djärv's avatar
Jan Djärv committed
369
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
370
              GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
371 372 373 374 375 376 377
              if (gwdesc != 0
                  && (gwdesc == x->widget
                      || gwdesc == x->edit_widget
                      || gwdesc == x->vbox_widget
                      || gwdesc == x->menubar_widget))
                found = f;
#else
378 379
	      if (wdesc == XtWindow (x->widget)
		  || wdesc == XtWindow (x->column_widget)
380 381 382 383 384
		  || 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
385
#endif
386 387 388 389
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
390
	}
Jim Blandy's avatar
Jim Blandy committed
391
    }
392

393
  return found;
Jim Blandy's avatar
Jim Blandy committed
394
}
395

396 397 398 399 400 401 402 403 404
/* 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;
405
  struct x_output *x;
406

407 408
  if (wdesc == None) return 0;

409
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
410
    {
411
      frame = XCAR (tail);
412 413 414
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
415
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
416
	continue;
417
      x = f->output_data.x;
418
      /* This frame matches if the window is any of its widgets.  */
419
      if (x->hourglass_window == wdesc)
420 421
	return f;
      else if (x->widget)
422
	{
Jan Djärv's avatar
Jan Djärv committed
423
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
424
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
425 426 427 428 429 430
          if (gwdesc != 0
              && (gwdesc == x->widget
                  || gwdesc == x->edit_widget
                  || gwdesc == x->vbox_widget))
            return f;
#else
431 432
	  if (wdesc == XtWindow (x->widget)
	      || wdesc == XtWindow (x->column_widget)
433 434
	      || wdesc == XtWindow (x->edit_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
435
#endif
436 437 438
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* A tooltip frame.  */
439 440 441 442 443
	return f;
    }
  return 0;
}

444 445 446 447 448 449 450 451 452
/* 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;
453
  struct x_output *x;
454

455 456
  if (wdesc == None) return 0;

457
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
458
    {
459
      frame = XCAR (tail);
460 461 462
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
463
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
464
	continue;
465
      x = f->output_data.x;
466
      /* Match if the window is this frame's menubar.  */
Jan Djärv's avatar
Jan Djärv committed
467 468 469
#ifdef USE_GTK
      if (x->menubar_widget)
        {
Kenichi Handa's avatar
Kenichi Handa committed
470
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
471
          int found = 0;
472

Jan Djärv's avatar
Jan Djärv committed
473 474 475 476 477 478 479 480 481
          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
482 483
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
484
	return f;
Jan Djärv's avatar
Jan Djärv committed
485
#endif
486 487 488 489
    }
  return 0;
}

490 491 492 493
/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
494 495
x_top_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
496 497 498 499
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
500
  struct x_output *x;
501

502 503
  if (wdesc == None) return 0;

504
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
505
    {
506
      frame = XCAR (tail);
507
      if (!GC_FRAMEP (frame))
508 509
        continue;
      f = XFRAME (frame);
510
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
511
	continue;
512
      x = f->output_data.x;
513 514 515 516

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
Jan Djärv's avatar
Jan Djärv committed
517
#ifdef USE_GTK
Kenichi Handa's avatar
Kenichi Handa committed
518
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
Jan Djärv's avatar
Jan Djärv committed
519 520 521
          if (gwdesc == x->widget)
            return f;
#else
522 523
	  if (wdesc == XtWindow (x->widget))
	    return f;
524 525 526
#if 0 /* I don't know why it did this,
	 but it seems logically wrong,
	 and it causes trouble for MapNotify events.  */
527
	  /* Match if the window is this frame's menubar.  */
528
	  if (x->menubar_widget
529 530
	      && wdesc == XtWindow (x->menubar_widget))
	    return f;
Jan Djärv's avatar
Jan Djärv committed
531
#endif
532
#endif
533 534 535 536
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
537 538 539
    }
  return 0;
}
Jan Djärv's avatar
Jan Djärv committed
540
#endif /* USE_X_TOOLKIT || USE_GTK */
Jim Blandy's avatar
Jim Blandy committed
541

542 543


Kenichi Handa's avatar
Kenichi Handa committed
544 545
static void x_default_font_parameter P_ ((struct frame *, Lisp_Object));

546 547
static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
548

549
void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
Gerd Moellmann's avatar
Gerd Moellmann committed
550
static void x_set_wait_for_wm P_ ((struct frame *, Lisp_Object, Lisp_Object));
551 552 553 554 555 556 557 558 559 560
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));
561
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
562 563 564 565 566 567 568 569 570
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
571

572

573
/* Store the screen positions of frame F into XPTR and YPTR.
574 575 576 577 578 579 580 581
   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;
{
582 583 584 585
  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;
586

587 588
  BLOCK_INPUT;

589
  x_catch_errors (FRAME_X_DISPLAY (f));
590

591 592 593 594 595 596 597 598
  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 (;;)
599
    {
600 601 602
      Window wm_window, rootw;
      Window *tmp_children;
      unsigned int tmp_nchildren;
603
      int success;
604

605 606
      success = XQueryTree (FRAME_X_DISPLAY (f), win, &rootw,
			    &wm_window, &tmp_children, &tmp_nchildren);
607

608
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
609

610 611 612 613 614 615
      /* Don't free tmp_children if XQueryTree failed.  */
      if (! success)
	break;

      XFree ((char *) tmp_children);

616 617
      if (wm_window == rootw || had_errors)
        break;
618

619 620
      win = wm_window;
    }
621

622 623
  if (! had_errors)
    {
624
      unsigned int ign;
625
      Window child, rootw;
626

627 628 629 630 631 632 633 634 635 636 637 638 639 640
      /* 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
      */
641
      XTranslateCoordinates (FRAME_X_DISPLAY (f),
642

643 644
			     /* From-window, to-window.  */
			     FRAME_X_DISPLAY_INFO (f)->root_window,
645
                             FRAME_X_WINDOW (f),
646

647
			     /* From-position, to-position.  */
648
                             real_x, real_y, &win_x, &win_y,
649

650 651
			     /* Child of win.  */
			     &child);
652

653
      if (FRAME_X_WINDOW (f) == FRAME_OUTER_WINDOW (f))
654
	{
655 656
          outer_x = win_x;
          outer_y = win_y;
657
	}
658 659 660
      else
        {
          XTranslateCoordinates (FRAME_X_DISPLAY (f),
661

662 663 664
                                 /* From-window, to-window.  */
                                 FRAME_X_DISPLAY_INFO (f)->root_window,
                                 FRAME_OUTER_WINDOW (f),
665

666 667
                                 /* From-position, to-position.  */
                                 real_x, real_y, &outer_x, &outer_y,
668

669 670
                                 /* Child of win.  */
                                 &child);
671
	}
672

673 674
      had_errors = x_had_errors_p (FRAME_X_DISPLAY (f));
    }
675

676
  x_uncatch_errors ();
677

678 679 680
  UNBLOCK_INPUT;

  if (had_errors) return;
681

682 683 684 685 686
  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;
687 688 689

  *xptr = real_x;
  *yptr = real_y;
690 691
}

Jim Blandy's avatar
Jim Blandy committed
692

693

694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710

/* 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;
    }
}


711 712 713 714
/* 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.  */
715

Jim Blandy's avatar
Jim Blandy committed
716
int
717 718 719 720 721
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
722
{
723 724 725
  int success_p;
  Display *dpy = FRAME_X_DISPLAY (f);
  Colormap cmap = FRAME_X_COLORMAP (f);
Jim Blandy's avatar
Jim Blandy committed
726 727

  BLOCK_INPUT;
728 729 730
  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
731 732
  UNBLOCK_INPUT;

733
  return success_p;
Jim Blandy's avatar
Jim Blandy committed
734 735
}

736 737 738 739

/* 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
740 741

int
742
x_decode_color (f, color_name, mono_color)
743
     FRAME_PTR f;
744 745
     Lisp_Object color_name;
     int mono_color;
Jim Blandy's avatar
Jim Blandy committed
746
{
747
  XColor cdef;
Jim Blandy's avatar
Jim Blandy committed
748

749
  CHECK_STRING (color_name);
Jim Blandy's avatar
Jim Blandy committed
750

751 752 753
#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.  */
754
  if (strcmp (SDATA (color_name), "black") == 0)
755
    return BLACK_PIX_DEFAULT (f);
756
  else if (strcmp (SDATA (color_name), "white") == 0)
757
    return WHITE_PIX_DEFAULT (f);
758
#endif
Jim Blandy's avatar
Jim Blandy committed
759

760
  /* Return MONO_COLOR for monochrome frames.  */
761
  if (FRAME_X_DISPLAY_INFO (f)->n_planes == 1)
762
    return mono_color;
Jim Blandy's avatar
Jim Blandy committed
763

764
  /* x_defined_color is responsible for coping with failures
765
     by looking for a near-miss.  */
766
  if (x_defined_color (f, SDATA (color_name), &cdef, 1))
767 768
    return cdef.pixel;

769 770 771
  Fsignal (Qerror, Fcons (build_string ("Undefined color"),
			  Fcons (color_name, Qnil)));
  return 0;
Jim Blandy's avatar
Jim Blandy committed
772
}
773 774


Jim Blandy's avatar
Jim Blandy committed
775

Gerd Moellmann's avatar
Gerd Moellmann committed
776 777 778 779 780 781 782 783 784 785 786 787
/* 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);
}

788 789
#ifdef USE_GTK

790 791
/* 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.  */
792 793

int
Kenichi Handa's avatar
Kenichi Handa committed
794
xg_set_icon (f, file)
795
    FRAME_PTR f;
796 797
    Lisp_Object file;
{
798 799
  int result = 0;
  Lisp_Object found;
800

801 802 803 804 805 806
  found = x_find_image_file (file);

  if (! NILP (found))
    {
      GdkPixbuf *pixbuf;
      GError *err = NULL;
807
      char *filename = (char *) SDATA (found);
808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826
      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;
827
}
828 829 830 831 832 833 834

int
xg_set_icon_from_xpm_data (f, data)
    FRAME_PTR f;
    char **data;
{
  int result = 0;
835
  GdkPixbuf *pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **) data);
836 837

  if (!pixbuf)
838
    return 0;
839

840
  gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), pixbuf);
841 842 843
  g_object_unref (pixbuf);
  return 1;
}
844 845
#endif /* USE_GTK */

Gerd Moellmann's avatar
Gerd Moellmann committed
846

Jim Blandy's avatar
Jim Blandy committed
847
/* Functions called only from `x_set_frame_param'
Jim Blandy's avatar
Jim Blandy committed
848 849
   to set individual parameters.

850
   If FRAME_X_WINDOW (f) is 0,
Jim Blandy's avatar
Jim Blandy committed
851
   the frame is being created and its X-window does not exist yet.
Jim Blandy's avatar
Jim Blandy committed
852 853 854 855
   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
856 857
x_set_foreground_color (f, arg, oldval)
     struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
858 859
     Lisp_Object arg, oldval;
{
860 861
  struct x_output *x = f->output_data.x;
  unsigned long fg, old_fg;
862

863 864 865
  fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  old_fg = x->foreground_pixel;
  x->foreground_pixel = fg;
866

867
  if (FRAME_X_WINDOW (f) != 0)
Jim Blandy's avatar
Jim Blandy committed
868
    {
869
      Display *dpy = FRAME_X_DISPLAY (f);
870

871 872 873
      BLOCK_INPUT;
      XSetForeground (dpy, x->normal_gc, fg);
      XSetBackground (dpy, x->reverse_gc, fg);
874

875 876 877 878 879 880
      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);
	}
881

Jim Blandy's avatar
Jim Blandy committed
882
      UNBLOCK_INPUT;
883

884
      update_face_from_frame_parameter (f, Qforeground_color, arg);
885

886
      if (FRAME_VISIBLE_P (f))