xfns.c 283 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Functions for the X window system.
Gerd Moellmann's avatar
Gerd Moellmann committed
2
   Copyright (C) 1989, 92, 93, 94, 95, 96, 1997, 1998, 1999, 2000
3
     Free Software Foundation.
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
19 20
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
Jim Blandy's avatar
Jim Blandy committed
21

Richard M. Stallman's avatar
Richard M. Stallman committed
22
#include <config.h>
23
#include <signal.h>
24
#include <stdio.h>
25
#include <math.h>
Richard M. Stallman's avatar
Richard M. Stallman committed
26

27
/* This makes the fields of a Display accessible, in Xlib header files.  */
28

29 30
#define XLIB_ILLEGAL_ACCESS

Jim Blandy's avatar
Jim Blandy committed
31 32
#include "lisp.h"
#include "xterm.h"
Jim Blandy's avatar
Jim Blandy committed
33
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
34 35
#include "window.h"
#include "buffer.h"
Kenichi Handa's avatar
Kenichi Handa committed
36
#include "intervals.h"
Jim Blandy's avatar
Jim Blandy committed
37
#include "dispextern.h"
Jim Blandy's avatar
Jim Blandy committed
38
#include "keyboard.h"
39
#include "blockinput.h"
40
#include <epaths.h>
Karl Heuer's avatar
Karl Heuer committed
41 42
#include "charset.h"
#include "fontset.h"
43 44
#include "systime.h"
#include "termhooks.h"
45
#include "atimer.h"
Jim Blandy's avatar
Jim Blandy committed
46 47

#ifdef HAVE_X_WINDOWS
48 49

#include <ctype.h>
50 51
#include <sys/types.h>
#include <sys/stat.h>
Jim Blandy's avatar
Jim Blandy committed
52

53
#ifndef VMS
54
#if 1 /* Used to be #ifdef EMACS_BITMAP_FILES, but this should always work.  */
55 56
#include "bitmaps/gray.xbm"
#else
Jim Blandy's avatar
Jim Blandy committed
57
#include <X11/bitmaps/gray>
58
#endif
59 60 61
#else
#include "[.bitmaps]gray.xbm"
#endif
Jim Blandy's avatar
Jim Blandy committed
62

63 64 65
#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>

66
#ifndef USE_MOTIF
67 68
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/Label.h>
69
#endif /* USE_MOTIF */
70 71 72 73 74 75 76 77 78 79 80 81 82

#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"

83 84 85 86 87 88
#ifdef USE_MOTIF
#include <Xm/Xm.h>
#include <Xm/DialogS.h>
#include <Xm/FileSB.h>
#endif

89 90
/* Do the EDITRES protocol if running X11R5
   Exception: HP-UX (at least version A.09.05) has X11R5 without EditRes */
91

92
#if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES)
93
#define HACK_EDITRES
94
extern void _XEditResCheckMessages ();
95 96
#endif /* R5 + Athena */

97 98
/* Unique id counter for widgets created by the Lucid Widget Library.  */

99 100
extern LWLIB_ID widget_id_tick;

101
#ifdef USE_LUCID
102
/* This is part of a kludge--see lwlib/xlwmenu.c.  */
103
extern XFontStruct *xlwmenu_default_font;
104
#endif
105

106
extern void free_frame_menubar ();
107
extern double atof ();
108

109 110
#endif /* USE_X_TOOLKIT */

Jim Blandy's avatar
Jim Blandy committed
111 112 113
#define min(a,b) ((a) < (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a) : (b))

Richard M. Stallman's avatar
Richard M. Stallman committed
114 115 116 117 118 119
#ifdef HAVE_X11R4
#define MAXREQUEST(dpy) (XMaxRequestSize (dpy))
#else
#define MAXREQUEST(dpy) ((dpy)->max_request_size)
#endif

120 121 122 123 124 125 126 127
/* 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;
unsigned char *gray_bitmap_bits = gray_bits;

128
/* The name we're using in resource queries.  Most often "emacs".  */
129

130
Lisp_Object Vx_resource_name;
131

132 133
/* The application class we're using in resource queries.
   Normally "Emacs".  */
134

135 136
Lisp_Object Vx_resource_class;

137 138 139 140
/* Non-zero means we're allowed to display a busy cursor.  */

int display_busy_cursor_p;

Jim Blandy's avatar
Jim Blandy committed
141
/* The background and shape of the mouse pointer, and shape when not
142
   over text or in the modeline.  */
143

Jim Blandy's avatar
Jim Blandy committed
144
Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
145 146
Lisp_Object Vx_busy_pointer_shape;

147
/* The shape when over mouse-sensitive text.  */
148

149
Lisp_Object Vx_sensitive_text_pointer_shape;
Jim Blandy's avatar
Jim Blandy committed
150

151
/* Color of chars displayed in cursor box.  */
152

Jim Blandy's avatar
Jim Blandy committed
153 154
Lisp_Object Vx_cursor_fore_pixel;

155
/* Nonzero if using X.  */
156

157
static int x_in_use;
Jim Blandy's avatar
Jim Blandy committed
158

159
/* Non nil if no window manager is in use.  */
160

Jim Blandy's avatar
Jim Blandy committed
161 162
Lisp_Object Vx_no_window_manager;

Richard M. Stallman's avatar
Richard M. Stallman committed
163
/* Search path for bitmap files.  */
164

Richard M. Stallman's avatar
Richard M. Stallman committed
165 166
Lisp_Object Vx_bitmap_file_path;

Karl Heuer's avatar
Karl Heuer committed
167
/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
168

Karl Heuer's avatar
Karl Heuer committed
169 170
Lisp_Object Vx_pixel_size_width_font_regexp;

171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
/* Evaluate this expression to rebuild the section of syms_of_xfns
   that initializes and staticpros the symbols declared below.  Note
   that Emacs 18 has a bug that keeps C-x C-e from being able to
   evaluate this expression.

(progn
  ;; Accumulate a list of the symbols we want to initialize from the
  ;; declarations at the top of the file.
  (goto-char (point-min))
  (search-forward "/\*&&& symbols declared here &&&*\/\n")
  (let (symbol-list)
    (while (looking-at "Lisp_Object \\(Q[a-z_]+\\)")
      (setq symbol-list
	    (cons (buffer-substring (match-beginning 1) (match-end 1))
		  symbol-list))
      (forward-line 1))
    (setq symbol-list (nreverse symbol-list))
    ;; Delete the section of syms_of_... where we initialize the symbols.
    (search-forward "\n  /\*&&& init symbols here &&&*\/\n")
    (let ((start (point)))
      (while (looking-at "^  Q")
	(forward-line 2))
      (kill-region start (point)))
    ;; Write a new symbol initialization section.
    (while symbol-list
      (insert (format "  %s = intern (\"" (car symbol-list)))
      (let ((start (point)))
	(insert (substring (car symbol-list) 1))
	(subst-char-in-region start (point) ?_ ?-))
      (insert (format "\");\n  staticpro (&%s);\n" (car symbol-list)))
      (setq symbol-list (cdr symbol-list)))))

  */        

/*&&& symbols declared here &&&*/
Lisp_Object Qauto_raise;
Lisp_Object Qauto_lower;
Jim Blandy's avatar
Jim Blandy committed
208
Lisp_Object Qbar;
209 210
Lisp_Object Qborder_color;
Lisp_Object Qborder_width;
Jim Blandy's avatar
Jim Blandy committed
211
Lisp_Object Qbox;
212
Lisp_Object Qcursor_color;
Jim Blandy's avatar
Jim Blandy committed
213
Lisp_Object Qcursor_type;
214 215 216 217
Lisp_Object Qgeometry;
Lisp_Object Qicon_left;
Lisp_Object Qicon_top;
Lisp_Object Qicon_type;
Karl Heuer's avatar
Karl Heuer committed
218
Lisp_Object Qicon_name;
219 220
Lisp_Object Qinternal_border_width;
Lisp_Object Qleft;
221
Lisp_Object Qright;
222
Lisp_Object Qmouse_color;
223
Lisp_Object Qnone;
224
Lisp_Object Qouter_window_id;
225
Lisp_Object Qparent_id;
226
Lisp_Object Qscroll_bar_width;
227
Lisp_Object Qsuppress_icon;
228
extern Lisp_Object Qtop;
Jim Blandy's avatar
Jim Blandy committed
229
Lisp_Object Qundefined_color;
230
Lisp_Object Qvertical_scroll_bars;
231
Lisp_Object Qvisibility;
232
Lisp_Object Qwindow_id;
Jim Blandy's avatar
Jim Blandy committed
233
Lisp_Object Qx_frame_parameter;
234
Lisp_Object Qx_resource_name;
235 236
Lisp_Object Quser_position;
Lisp_Object Quser_size;
237
extern Lisp_Object Qdisplay;
238
Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
Gerd Moellmann's avatar
Gerd Moellmann committed
239
Lisp_Object Qscreen_gamma, Qline_spacing, Qcenter;
Jim Blandy's avatar
Jim Blandy committed
240

241
/* The below are defined in frame.c.  */
242

243
extern Lisp_Object Qheight, Qminibuffer, Qname, Qonly, Qwidth;
Richard M. Stallman's avatar
Richard M. Stallman committed
244
extern Lisp_Object Qunsplittable, Qmenu_bar_lines, Qbuffer_predicate, Qtitle;
245
extern Lisp_Object Qtool_bar_lines;
246

Jim Blandy's avatar
Jim Blandy committed
247 248
extern Lisp_Object Vwindow_system_version;

249
Lisp_Object Qface_set_after_frame_default;
250

Jim Blandy's avatar
Jim Blandy committed
251

Richard M. Stallman's avatar
Richard M. Stallman committed
252
/* Error if we are not connected to X.  */
253

Karl Heuer's avatar
Karl Heuer committed
254
void
Richard M. Stallman's avatar
Richard M. Stallman committed
255 256
check_x ()
{
257
  if (! x_in_use)
Richard M. Stallman's avatar
Richard M. Stallman committed
258 259 260
    error ("X windows are not in use or not initialized");
}

261 262
/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
263 264

int
265
have_menus_p ()
266
{
267 268 269 270 271 272 273 274 275 276 277 278 279
  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
280 281 282
    frame = selected_frame;
  CHECK_LIVE_FRAME (frame, 0);
  f = XFRAME (frame);
283
  if (! FRAME_X_P (f))
284
    error ("Non-X frame used");
285
  return f;
286 287
}

288 289 290 291 292 293 294 295 296 297
/* 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.  */

static struct x_display_info *
check_x_display_info (frame)
     Lisp_Object frame;
{
  if (NILP (frame))
    {
Gerd Moellmann's avatar
Gerd Moellmann committed
298 299 300 301
      struct frame *sf = XFRAME (selected_frame);
      
      if (FRAME_X_P (sf) && FRAME_LIVE_P (sf))
	return FRAME_X_DISPLAY_INFO (sf);
302 303 304 305 306 307 308 309 310 311 312 313 314 315
      else if (x_display_list != 0)
	return x_display_list;
      else
	error ("X windows are not in use or not initialized");
    }
  else if (STRINGP (frame))
    return x_display_info_for_name (frame);
  else
    {
      FRAME_PTR f;

      CHECK_LIVE_FRAME (frame, 0);
      f = XFRAME (frame);
      if (! FRAME_X_P (f))
316
	error ("Non-X frame used");
317 318 319
      return FRAME_X_DISPLAY_INFO (f);
    }
}
320

321

Jim Blandy's avatar
Jim Blandy committed
322 323
/* 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
324

325
/* This function can be called during GC, so use GC_xxx type test macros.  */
326

Jim Blandy's avatar
Jim Blandy committed
327
struct frame *
328 329
x_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
Jim Blandy's avatar
Jim Blandy committed
330 331
     int wdesc;
{
Jim Blandy's avatar
Jim Blandy committed
332 333
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
334

335
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
336
    {
337
      frame = XCAR (tail);
338
      if (!GC_FRAMEP (frame))
Jim Blandy's avatar
Jim Blandy committed
339
        continue;
Jim Blandy's avatar
Jim Blandy committed
340
      f = XFRAME (frame);
341
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
342
	continue;
343 344
      if (f->output_data.x->busy_window == wdesc)
	return f;
345
#ifdef USE_X_TOOLKIT
346 347
      if ((f->output_data.x->edit_widget 
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
348 349 350
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
351
          || f->output_data.x->icon_desc == wdesc)
352 353
        return f;
#else /* not USE_X_TOOLKIT */
354
      if (FRAME_X_WINDOW (f) == wdesc
355
          || f->output_data.x->icon_desc == wdesc)
Jim Blandy's avatar
Jim Blandy committed
356
        return f;
357 358 359 360 361 362 363 364 365 366
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

#ifdef USE_X_TOOLKIT
/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

struct frame *
367 368
x_any_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
369 370 371
     int wdesc;
{
  Lisp_Object tail, frame;
372
  struct frame *f, *found;
373
  struct x_output *x;
374

375 376
  found = NULL;
  for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail))
377
    {
378
      frame = XCAR (tail);
379
      if (!GC_FRAMEP (frame))
380
        continue;
381
      
382
      f = XFRAME (frame);
383
      if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo)
384
	{
385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
	  if (x->busy_window == wdesc)
	    found = f;
	  else if (x->widget)
	    {
	      if (wdesc == XtWindow (x->widget) 
		  || wdesc == XtWindow (x->column_widget) 
		  || 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;
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
402
	}
Jim Blandy's avatar
Jim Blandy committed
403
    }
404 405
  
  return found;
Jim Blandy's avatar
Jim Blandy committed
406
}
407

408 409 410 411 412 413 414 415 416
/* 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;
417
  struct x_output *x;
418

419
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
420
    {
421
      frame = XCAR (tail);
422 423 424
      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
425
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
426
	continue;
427
      x = f->output_data.x;
428
      /* This frame matches if the window is any of its widgets.  */
429 430 431
      if (x->busy_window == wdesc)
	return f;
      else if (x->widget)
432 433 434 435 436 437 438 439
	{
	  if (wdesc == XtWindow (x->widget) 
	      || wdesc == XtWindow (x->column_widget) 
	      || wdesc == XtWindow (x->edit_widget))
	    return f;
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* A tooltip frame.  */
440 441 442 443 444
	return f;
    }
  return 0;
}

445 446 447 448 449 450 451 452 453
/* 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;
454
  struct x_output *x;
455

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.  */
466 467
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
468 469 470 471 472
	return f;
    }
  return 0;
}

473 474 475 476
/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
477 478
x_top_window_to_frame (dpyinfo, wdesc)
     struct x_display_info *dpyinfo;
479 480 481 482
     int wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;
483
  struct x_output *x;
484

485
  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
486
    {
487
      frame = XCAR (tail);
488
      if (!GC_FRAMEP (frame))
489 490
        continue;
      f = XFRAME (frame);
491
      if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo)
492
	continue;
493
      x = f->output_data.x;
494 495 496 497 498 499

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
	  if (wdesc == XtWindow (x->widget))
	    return f;
500 501 502
#if 0 /* I don't know why it did this,
	 but it seems logically wrong,
	 and it causes trouble for MapNotify events.  */
503 504 505 506
	  /* Match if the window is this frame's menubar.  */
	  if (x->menubar_widget 
	      && wdesc == XtWindow (x->menubar_widget))
	    return f;
507
#endif
508 509 510 511
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
512 513 514
    }
  return 0;
}
515
#endif /* USE_X_TOOLKIT */
Jim Blandy's avatar
Jim Blandy committed
516

517 518 519 520 521 522 523 524 525 526 527


/* Code to deal with bitmaps.  Bitmaps are referenced by their bitmap
   id, which is just an int that this section returns.  Bitmaps are
   reference counted so they can be shared among frames.

   Bitmap indices are guaranteed to be > 0, so a negative number can
   be used to indicate no bitmap.

   If you use x_create_bitmap_from_data, then you must keep track of
   the bitmaps yourself.  That is, creating a bitmap from the same
528
   data more than once will not be caught.  */
529 530


Richard M. Stallman's avatar
Richard M. Stallman committed
531 532 533 534 535 536 537
/* Functions to access the contents of a bitmap, given an id.  */

int
x_bitmap_height (f, id)
     FRAME_PTR f;
     int id;
{
538
  return FRAME_X_DISPLAY_INFO (f)->bitmaps[id - 1].height;
Richard M. Stallman's avatar
Richard M. Stallman committed
539 540 541 542 543 544 545
}

int
x_bitmap_width (f, id)
     FRAME_PTR f;
     int id;
{
546
  return FRAME_X_DISPLAY_INFO (f)->bitmaps[id - 1].width;
Richard M. Stallman's avatar
Richard M. Stallman committed
547 548 549 550 551 552 553
}

int
x_bitmap_pixmap (f, id)
     FRAME_PTR f;
     int id;
{
554
  return FRAME_X_DISPLAY_INFO (f)->bitmaps[id - 1].pixmap;
Richard M. Stallman's avatar
Richard M. Stallman committed
555 556 557
}


558 559 560
/* Allocate a new bitmap record.  Returns index of new record.  */

static int
561 562
x_allocate_bitmap_record (f)
     FRAME_PTR f;
563
{
564 565 566 567
  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
  int i;

  if (dpyinfo->bitmaps == NULL)
568
    {
569 570 571 572
      dpyinfo->bitmaps_size = 10;
      dpyinfo->bitmaps
	= (struct x_bitmap_record *) xmalloc (dpyinfo->bitmaps_size * sizeof (struct x_bitmap_record));
      dpyinfo->bitmaps_last = 1;
573 574 575
      return 1;
    }

576 577
  if (dpyinfo->bitmaps_last < dpyinfo->bitmaps_size)
    return ++dpyinfo->bitmaps_last;
578

579 580 581
  for (i = 0; i < dpyinfo->bitmaps_size; ++i)
    if (dpyinfo->bitmaps[i].refcount == 0)
      return i + 1;
582

583 584 585 586 587
  dpyinfo->bitmaps_size *= 2;
  dpyinfo->bitmaps
    = (struct x_bitmap_record *) xrealloc (dpyinfo->bitmaps,
					   dpyinfo->bitmaps_size * sizeof (struct x_bitmap_record));
  return ++dpyinfo->bitmaps_last;
588 589 590 591 592
}

/* Add one reference to the reference count of the bitmap with id ID.  */

void
Richard M. Stallman's avatar
Richard M. Stallman committed
593 594
x_reference_bitmap (f, id)
     FRAME_PTR f;
595 596
     int id;
{
597
  ++FRAME_X_DISPLAY_INFO (f)->bitmaps[id - 1].refcount;
598 599 600 601 602 603 604 605 606 607
}

/* Create a bitmap for frame F from a HEIGHT x WIDTH array of bits at BITS.  */

int
x_create_bitmap_from_data (f, bits, width, height)
     struct frame *f;
     char *bits;
     unsigned int width, height;
{
608
  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
609 610 611
  Pixmap bitmap;
  int id;

612
  bitmap = XCreateBitmapFromData (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
613 614 615 616 617
				  bits, width, height);

  if (! bitmap)
    return -1;

618 619 620 621 622 623 624
  id = x_allocate_bitmap_record (f);
  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
  dpyinfo->bitmaps[id - 1].file = NULL;
  dpyinfo->bitmaps[id - 1].refcount = 1;
  dpyinfo->bitmaps[id - 1].depth = 1;
  dpyinfo->bitmaps[id - 1].height = height;
  dpyinfo->bitmaps[id - 1].width = width;
625 626 627 628 629 630 631 632 633

  return id;
}

/* Create bitmap from file FILE for frame F.  */

int
x_create_bitmap_from_file (f, file)
     struct frame *f;
Richard M. Stallman's avatar
Richard M. Stallman committed
634
     Lisp_Object file;
635
{
636
  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
637 638 639
  unsigned int width, height;
  Pixmap bitmap;
  int xhot, yhot, result, id;
Richard M. Stallman's avatar
Richard M. Stallman committed
640 641 642
  Lisp_Object found;
  int fd;
  char *filename;
643 644

  /* Look for an existing bitmap with the same name.  */
645
  for (id = 0; id < dpyinfo->bitmaps_last; ++id)
646
    {
647 648 649
      if (dpyinfo->bitmaps[id].refcount
	  && dpyinfo->bitmaps[id].file
	  && !strcmp (dpyinfo->bitmaps[id].file, (char *) XSTRING (file)->data))
650
	{
651
	  ++dpyinfo->bitmaps[id].refcount;
652 653 654 655
	  return id + 1;
	}
    }

Richard M. Stallman's avatar
Richard M. Stallman committed
656 657 658 659
  /* Search bitmap-file-path for the file, if appropriate.  */
  fd = openp (Vx_bitmap_file_path, file, "", &found, 0);
  if (fd < 0)
    return -1;
660 661 662
  /* XReadBitmapFile won't handle magic file names.  */
  if (fd == 0)
    return -1;
663
  emacs_close (fd);
Richard M. Stallman's avatar
Richard M. Stallman committed
664 665 666

  filename = (char *) XSTRING (found)->data;

667
  result = XReadBitmapFile (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
Richard M. Stallman's avatar
Richard M. Stallman committed
668
			    filename, &width, &height, &bitmap, &xhot, &yhot);
669 670 671
  if (result != BitmapSuccess)
    return -1;

672 673 674
  id = x_allocate_bitmap_record (f);
  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
  dpyinfo->bitmaps[id - 1].refcount = 1;
675
  dpyinfo->bitmaps[id - 1].file
676
    = (char *) xmalloc (STRING_BYTES (XSTRING (file)) + 1);
677 678 679 680
  dpyinfo->bitmaps[id - 1].depth = 1;
  dpyinfo->bitmaps[id - 1].height = height;
  dpyinfo->bitmaps[id - 1].width = width;
  strcpy (dpyinfo->bitmaps[id - 1].file, XSTRING (file)->data);
681 682 683 684 685 686

  return id;
}

/* Remove reference to bitmap with id number ID.  */

687
void
Richard M. Stallman's avatar
Richard M. Stallman committed
688 689
x_destroy_bitmap (f, id)
     FRAME_PTR f;
690 691
     int id;
{
692 693
  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);

694 695
  if (id > 0)
    {
696 697
      --dpyinfo->bitmaps[id - 1].refcount;
      if (dpyinfo->bitmaps[id - 1].refcount == 0)
698
	{
699
	  BLOCK_INPUT;
700 701
	  XFreePixmap (FRAME_X_DISPLAY (f), dpyinfo->bitmaps[id - 1].pixmap);
	  if (dpyinfo->bitmaps[id - 1].file)
702
	    {
703
	      xfree (dpyinfo->bitmaps[id - 1].file);
704
	      dpyinfo->bitmaps[id - 1].file = NULL;
705
	    }
706
	  UNBLOCK_INPUT;
707 708 709 710
	}
    }
}

711
/* Free all the bitmaps for the display specified by DPYINFO.  */
712

713 714 715
static void
x_destroy_all_bitmaps (dpyinfo)
     struct x_display_info *dpyinfo;
716
{
717 718 719 720 721 722
  int i;
  for (i = 0; i < dpyinfo->bitmaps_last; i++)
    if (dpyinfo->bitmaps[i].refcount > 0)
      {
	XFreePixmap (dpyinfo->display, dpyinfo->bitmaps[i].pixmap);
	if (dpyinfo->bitmaps[i].file)
723
	  xfree (dpyinfo->bitmaps[i].file);
724 725
      }
  dpyinfo->bitmaps_last = 0;
726
}
Jim Blandy's avatar
Jim Blandy committed
727

Jim Blandy's avatar
Jim Blandy committed
728
/* Connect the frame-parameter names for X frames
Jim Blandy's avatar
Jim Blandy committed
729 730 731
   to the ways of passing the parameter values to the window system.

   The name of a parameter, as a Lisp symbol,
Jim Blandy's avatar
Jim Blandy committed
732
   has an `x-frame-parameter' property which is an integer in Lisp
733
   that is an index in this table.  */
Jim Blandy's avatar
Jim Blandy committed
734

Jim Blandy's avatar
Jim Blandy committed
735
struct x_frame_parm_table
Jim Blandy's avatar
Jim Blandy committed
736 737
{
  char *name;
738
  void (*setter) P_ ((struct frame *, Lisp_Object, Lisp_Object));
Jim Blandy's avatar
Jim Blandy committed
739 740
};

741
static void x_create_im P_ ((struct frame *));
742
void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
743
static void x_set_line_spacing P_ ((struct frame *, Lisp_Object, Lisp_Object));
744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764
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_set_font P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_border_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_internal_border_width P_ ((struct frame *, Lisp_Object,
				      Lisp_Object));
void x_explicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_autoraise P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_autolower P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_vertical_scroll_bars P_ ((struct frame *, Lisp_Object,
				     Lisp_Object));
void x_set_visibility P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_scroll_bar_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_title P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_unsplittable P_ ((struct frame *, Lisp_Object, Lisp_Object));
765
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
766 767 768 769 770 771 772 773 774
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));
775
static void x_set_screen_gamma P_ ((struct frame *, Lisp_Object, Lisp_Object));
Jim Blandy's avatar
Jim Blandy committed
776

Jim Blandy's avatar
Jim Blandy committed
777
static struct x_frame_parm_table x_frame_parms[] =
Jim Blandy's avatar
Jim Blandy committed
778
{
779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803
  "auto-raise",			x_set_autoraise,
  "auto-lower",			x_set_autolower,
  "background-color",		x_set_background_color,
  "border-color",		x_set_border_color,
  "border-width",		x_set_border_width,
  "cursor-color",		x_set_cursor_color,
  "cursor-type",		x_set_cursor_type,
  "font",			x_set_font,
  "foreground-color",		x_set_foreground_color,
  "icon-name",			x_set_icon_name,
  "icon-type",			x_set_icon_type,
  "internal-border-width",	x_set_internal_border_width,
  "menu-bar-lines",		x_set_menu_bar_lines,
  "mouse-color",		x_set_mouse_color,
  "name",			x_explicitly_set_name,
  "scroll-bar-width",		x_set_scroll_bar_width,
  "title",			x_set_title,
  "unsplittable",		x_set_unsplittable,
  "vertical-scroll-bars",	x_set_vertical_scroll_bars,
  "visibility",			x_set_visibility,
  "tool-bar-lines",		x_set_tool_bar_lines,
  "scroll-bar-foreground",	x_set_scroll_bar_foreground,
  "scroll-bar-background",	x_set_scroll_bar_background,
  "screen-gamma",		x_set_screen_gamma,
  "line-spacing",		x_set_line_spacing
Jim Blandy's avatar
Jim Blandy committed
804 805
};

Jim Blandy's avatar
Jim Blandy committed
806
/* Attach the `x-frame-parameter' properties to
Jim Blandy's avatar
Jim Blandy committed
807 808
   the Lisp symbol names of parameters relevant to X.  */

Andreas Schwab's avatar
Andreas Schwab committed
809
void
Jim Blandy's avatar
Jim Blandy committed
810 811 812 813
init_x_parm_symbols ()
{
  int i;

814
  for (i = 0; i < sizeof (x_frame_parms) / sizeof (x_frame_parms[0]); i++)
Jim Blandy's avatar
Jim Blandy committed
815
    Fput (intern (x_frame_parms[i].name), Qx_frame_parameter,
Jim Blandy's avatar
Jim Blandy committed
816 817 818
	  make_number (i));
}

819
/* Change the parameters of frame F as specified by ALIST.
820 821 822 823
   If a parameter is not specially recognized, do nothing special;
   otherwise call the `x_set_...' function for that parameter.
   Except for certain geometry properties, always call store_frame_param
   to store the new value in the parameter alist.  */
824

825 826 827 828 829 830 831 832 833 834
void
x_set_frame_parameters (f, alist)
     FRAME_PTR f;
     Lisp_Object alist;
{
  Lisp_Object tail;

  /* If both of these parameters are present, it's more efficient to
     set them both at once.  So we wait until we've looked at the
     entire list before we set them.  */
835
  int width, height;
836 837 838 839

  /* Same here.  */
  Lisp_Object left, top;

840 841 842
  /* Same with these.  */
  Lisp_Object icon_left, icon_top;

843 844 845
  /* Record in these vectors all the parms specified.  */
  Lisp_Object *parms;
  Lisp_Object *values;
846
  int i, p;
847
  int left_no_change = 0, top_no_change = 0;
848
  int icon_left_no_change = 0, icon_top_no_change = 0;
849

850 851
  struct gcpro gcpro1, gcpro2;

852 853 854 855 856 857
  i = 0;
  for (tail = alist; CONSP (tail); tail = Fcdr (tail))
    i++;

  parms = (Lisp_Object *) alloca (i * sizeof (Lisp_Object));
  values = (Lisp_Object *) alloca (i * sizeof (Lisp_Object));
858

859 860 861
  /* Extract parm names and values into those vectors.  */

  i = 0;
862 863
  for (tail = alist; CONSP (tail); tail = Fcdr (tail))
    {
864
      Lisp_Object elt;
865 866

      elt = Fcar (tail);
867 868 869 870
      parms[i] = Fcar (elt);
      values[i] = Fcdr (elt);
      i++;
    }
871 872 873 874 875 876
  /* TAIL and ALIST are not used again below here.  */
  alist = tail = Qnil;

  GCPRO2 (*parms, *values);
  gcpro1.nvars = i;
  gcpro2.nvars = i;
877

878 879
  /* There is no need to gcpro LEFT, TOP, ICON_LEFT, or ICON_TOP,
     because their values appear in VALUES and strings are not valid.  */
880
  top = left = Qunbound;
881
  icon_left = icon_top = Qunbound;
882

883 884 885 886 887 888 889 890 891 892 893
  /* Provide default values for HEIGHT and WIDTH.  */
  if (FRAME_NEW_WIDTH (f))
    width = FRAME_NEW_WIDTH (f);
  else
    width = FRAME_WIDTH (f);

  if (FRAME_NEW_HEIGHT (f))
    height = FRAME_NEW_HEIGHT (f);
  else
    height = FRAME_HEIGHT (f);

894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916
  /* Process foreground_color and background_color before anything else.
     They are independent of other properties, but other properties (e.g.,
     cursor_color) are dependent upon them.  */
  for (p = 0; p < i; p++) 
    {
      Lisp_Object prop, val;

      prop = parms[p];
      val = values[p];
      if (EQ (prop, Qforeground_color) || EQ (prop, Qbackground_color))
	{
	  register Lisp_Object param_index, old_value;

	  param_index = Fget (prop, Qx_frame_parameter);
	  old_value = get_frame_param (f, prop);
	  store_frame_param (f, prop, val);
 	  if (NATNUMP (param_index)
	      && (XFASTINT (param_index)
		  < sizeof (x_frame_parms)/sizeof (x_frame_parms[0])))
	    (*x_frame_parms[XINT (param_index)].setter)(f, val, old_value);
	}
    }

917 918 919 920 921 922 923 924
  /* Now process them in reverse of specified order.  */
  for (i--; i >= 0; i--)
    {
      Lisp_Object prop, val;

      prop = parms[i];
      val = values[i];

925 926 927 928
      if (EQ (prop, Qwidth) && NUMBERP (val))
	width = XFASTINT (val);
      else if (EQ (prop, Qheight) && NUMBERP (val))
	height = XFASTINT (val);
929
      else if (EQ (prop, Qtop))
930
	top = val;
931
      else if (EQ (prop, Qleft))
932
	left = val;
933 934 935 936
      else if (EQ (prop, Qicon_top))
	icon_top = val;
      else if (EQ (prop, Qicon_left))
	icon_left = val;
937 938 939
      else if (EQ (prop, Qforeground_color) || EQ (prop, Qbackground_color))
	/* Processed above.  */
	continue;
940 941
      else
	{
942
	  register Lisp_Object param_index, old_value;
943

944 945
	  param_index = Fget (prop, Qx_frame_parameter);
	  old_value = get_frame_param (f, prop);
946
	  store_frame_param (f, prop, val);
947 948
 	  if (NATNUMP (param_index)
	      && (XFASTINT (param_index)
949 950
		  < sizeof (x_frame_parms)/sizeof (x_frame_parms[0])))
	    (*x_frame_parms[XINT (param_index)].setter)(f, val, old_value);
951 952 953
	}
    }

954 955
  /* Don't die if just one of these was set.  */
  if (EQ (left, Qunbound))
956 957
    {
      left_no_change = 1;
958 959
      if (f->output_data.x->left_pos < 0)
	left = Fcons (Qplus, Fcons (make_number (f->output_data.x->left_pos), Qnil));
960
      else
961
	XSETINT (left, f->output_data.x->left_pos);
962
    }
963
  if (EQ (top, Qunbound))
964 965
    {
      top_no_change = 1;
966 967
      if (f->output_data.x->top_pos < 0)
	top = Fcons (Qplus, Fcons (make_number (f->output_data.x->top_pos), Qnil));
968
      else
969
	XSETINT (top, f->output_data.x->top_pos);
970
    }
971

972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
  /* If one of the icon positions was not set, preserve or default it.  */
  if (EQ (icon_left, Qunbound) || ! INTEGERP (icon_left))
    {
      icon_left_no_change = 1;
      icon_left = Fcdr (Fassq (Qicon_left, f->param_alist));
      if (NILP (icon_left))
	XSETINT (icon_left, 0);
    }
  if (EQ (icon_top, Qunbound) || ! INTEGERP (icon_top))
    {
      icon_top_no_change = 1;
      icon_top = Fcdr (Fassq (Qicon_top, f->param_alist));
      if (NILP (icon_top))
	XSETINT (icon_top, 0);
    }

988
  /* Don't set these parameters unless they've been explicitly
989 990 991 992 993 994 995
     specified.  The window might be mapped or resized while we're in
     this function, and we don't want to override that unless the lisp
     code has asked for it.

     Don't set these parameters unless they actually differ from the
     window's current parameters; the window may not actually exist
     yet.  */
996 997 998
  {
    Lisp_Object frame;

999 1000
    check_frame_size (f, &height, &width);

1001
    XSETFRAME (frame, f);
1002

1003 1004
    if (width != FRAME_WIDTH (f)
	|| height != FRAME_HEIGHT (f)
1005
	|| FRAME_NEW_HEIGHT (f) || FRAME_NEW_WIDTH (f))
1006
      Fset_frame_size (frame, make_number (width), make_number (height));
1007 1008

    if ((!NILP (left) || !NILP (top))
1009
	&& ! (left_no_change && top_no_change)
1010 1011
	&& ! (NUMBERP (left) && XINT (left) == f->output_data.x->left_pos
	      && NUMBERP (top) && XINT (top) == f->output_data.x->top_pos))
1012
      {
1013 1014
	int leftpos = 0;
	int toppos = 0;
1015 1016

	/* Record the signs.  */
1017
	f->output_data.x->size_hint_flags &= ~ (XNegative | YNegative);
1018
	if (EQ (left, Qminus))
1019
	  f->output_data.x->size_hint_flags |= XNegative;
1020 1021 1022 1023
	else if (INTEGERP (left))
	  {
	    leftpos = XINT (left);
	    if (leftpos < 0)
1024
	      f->output_data.x->size_hint_flags |= XNegative;
1025
	  }
1026 1027 1028
	else if (CONSP (left) && EQ (XCAR (left), Qminus)
		 && CONSP (XCDR (left))
		 && INTEGERP (XCAR (XCDR (left))))
1029
	  {
1030
	    leftpos = - XINT (XCAR (XCDR (left)));
1031
	    f->output_data.x->size_hint_flags |= XNegative;