gdk.c 30.1 KB
Newer Older
Elliot Lee's avatar
Elliot Lee committed
1 2 3 4 5 6 7 8 9 10
/* GDK - The GIMP Drawing Kit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
Elliot Lee's avatar
Elliot Lee committed
12 13 14
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
15 16 17
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
Elliot Lee's avatar
Elliot Lee committed
18
 */
19
#include "config.h"
Elliot Lee's avatar
Elliot Lee committed
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>

#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H_ */

#define XLIB_ILLEGAL_ACCESS
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xos.h>
#include <X11/Xutil.h>
#include <X11/Xmu/WinUtil.h>
#include <X11/cursorfont.h>
#include "gdk.h"
#include "gdkprivate.h"
#include "gdkinput.h"
41
#include "gdkx.h"
42
#include "gdki18n.h"
Elliot Lee's avatar
Elliot Lee committed
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

#ifndef X_GETTIMEOFDAY
#define X_GETTIMEOFDAY(tv)  gettimeofday (tv, NULL)
#endif /* X_GETTIMEOFDAY */


typedef struct _GdkPredicate  GdkPredicate;

struct _GdkPredicate
{
  GdkEventFunc func;
  gpointer data;
};

/* 
 * Private function declarations
 */
60

61
#ifndef HAVE_XCONVERTCASE
62 63 64
static void	 gdkx_XConvertCase	(KeySym	       symbol,
					 KeySym	      *lower,
					 KeySym	      *upper);
65 66 67
#define XConvertCase gdkx_XConvertCase
#endif

68 69
static void	    gdk_exit_func		 (void);
static int	    gdk_x_error			 (Display     *display, 
Elliot Lee's avatar
Elliot Lee committed
70
						  XErrorEvent *error);
71
static int	    gdk_x_io_error		 (Display     *display);
Elliot Lee's avatar
Elliot Lee committed
72

73 74 75 76
GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
					 GdkEvent  *event,
					 gpointer   data);

Elliot Lee's avatar
Elliot Lee committed
77 78
/* Private variable declarations
 */
79
static int gdk_initialized = 0;			    /* 1 if the library is initialized,
Elliot Lee's avatar
Elliot Lee committed
80 81 82
						     * 0 otherwise.
						     */

83 84
static struct timeval start;			    /* The time at which the library was
						     *	last initialized.
Elliot Lee's avatar
Elliot Lee committed
85
						     */
86 87 88 89 90
static struct timeval timer;			    /* Timeout interval to use in the call
						     *	to "select". This is used in
						     *	conjunction with "timerp" to create
						     *	a maximum time to wait for an event
						     *	to arrive.
Elliot Lee's avatar
Elliot Lee committed
91
						     */
92 93 94 95
static struct timeval *timerp;			    /* The actual timer passed to "select"
						     *	This may be NULL, in which case
						     *	"select" will block until an event
						     *	arrives.
Elliot Lee's avatar
Elliot Lee committed
96
						     */
97 98
static guint32 timer_val;			    /* The timeout length as specified by
						     *	the user in milliseconds.
Elliot Lee's avatar
Elliot Lee committed
99
						     */
100

Elliot Lee's avatar
Elliot Lee committed
101 102
static gint autorepeat;

103
#ifdef G_ENABLE_DEBUG
104
static const GDebugKey gdk_debug_keys[] = {
105 106 107
  {"events",	    GDK_DEBUG_EVENTS},
  {"misc",	    GDK_DEBUG_MISC},
  {"dnd",	    GDK_DEBUG_DND},
108
  {"color-context", GDK_DEBUG_COLOR_CONTEXT},
109
  {"xim",	    GDK_DEBUG_XIM}
110
};
111 112 113

static const int gdk_ndebug_keys = sizeof(gdk_debug_keys)/sizeof(GDebugKey);

114
#endif /* G_ENABLE_DEBUG */
Elliot Lee's avatar
Elliot Lee committed
115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137

/*
 *--------------------------------------------------------------
 * gdk_init
 *
 *   Initialize the library for use.
 *
 * Arguments:
 *   "argc" is the number of arguments.
 *   "argv" is an array of strings.
 *
 * Results:
 *   "argc" and "argv" are modified to reflect any arguments
 *   which were not handled. (Such arguments should either
 *   be handled by the application or dismissed).
 *
 * Side effects:
 *   The library is initialized.
 *
 *--------------------------------------------------------------
 */

void
138
gdk_init (int	 *argc,
Elliot Lee's avatar
Elliot Lee committed
139 140 141
	  char ***argv)
{
  XKeyboardState keyboard_state;
142 143
  gint synchronize;
  gint i, j, k;
Elliot Lee's avatar
Elliot Lee committed
144
  XClassHint *class_hint;
145 146
  gchar **argv_orig = NULL;
  gint argc_orig = 0;
147
  
148 149
  if (gdk_initialized)
    return;
150
  
151 152 153
  if (g_thread_supported ())
    gdk_threads_mutex = g_mutex_new ();
  
154 155 156 157 158 159 160 161 162
  if (argc && argv)
    {
      argc_orig = *argc;
      
      argv_orig = g_malloc ((argc_orig + 1) * sizeof (char*));
      for (i = 0; i < argc_orig; i++)
	argv_orig[i] = g_strdup ((*argv)[i]);
      argv_orig[argc_orig] = NULL;
    }
163
  
Elliot Lee's avatar
Elliot Lee committed
164
  X_GETTIMEOFDAY (&start);
165
  
Elliot Lee's avatar
Elliot Lee committed
166
  gdk_display_name = NULL;
167
  
Elliot Lee's avatar
Elliot Lee committed
168 169
  XSetErrorHandler (gdk_x_error);
  XSetIOErrorHandler (gdk_x_io_error);
170
  
Elliot Lee's avatar
Elliot Lee committed
171
  synchronize = FALSE;
172
  
173 174 175 176 177
#ifdef G_ENABLE_DEBUG
  {
    gchar *debug_string = getenv("GDK_DEBUG");
    if (debug_string != NULL)
      gdk_debug_flags = g_parse_debug_string (debug_string,
178
					      (GDebugKey *) gdk_debug_keys,
179 180 181
					      gdk_ndebug_keys);
  }
#endif	/* G_ENABLE_DEBUG */
182
  
Elliot Lee's avatar
Elliot Lee committed
183 184 185
  if (argc && argv)
    {
      if (*argc > 0)
186 187
	{
	  gchar *d;
188
	  
189 190
	  d = strrchr((*argv)[0],'/');
	  if (d != NULL)
191
	    g_set_prgname (d + 1);
192
	  else
193
	    g_set_prgname ((*argv)[0]);
194
	}
195
      
Elliot Lee's avatar
Elliot Lee committed
196 197
      for (i = 1; i < *argc;)
	{
198
#ifdef G_ENABLE_DEBUG	  
199 200
	  if ((strcmp ("--gdk-debug", (*argv)[i]) == 0) ||
	      (strncmp ("--gdk-debug=", (*argv)[i], 12) == 0))
Elliot Lee's avatar
Elliot Lee committed
201
	    {
202 203 204 205 206
	      gchar *equal_pos = strchr ((*argv)[i], '=');
	      
	      if (equal_pos != NULL)
		{
		  gdk_debug_flags |= g_parse_debug_string (equal_pos+1,
207
							   (GDebugKey *) gdk_debug_keys,
208 209 210
							   gdk_ndebug_keys);
		}
	      else if ((i + 1) < *argc && (*argv)[i + 1])
Elliot Lee's avatar
Elliot Lee committed
211
		{
212
		  gdk_debug_flags |= g_parse_debug_string ((*argv)[i+1],
213
							   (GDebugKey *) gdk_debug_keys,
214
							   gdk_ndebug_keys);
215
		  (*argv)[i] = NULL;
216 217
		  i += 1;
		}
218
	      (*argv)[i] = NULL;
219
	    }
220 221
	  else if ((strcmp ("--gdk-no-debug", (*argv)[i]) == 0) ||
		   (strncmp ("--gdk-no-debug=", (*argv)[i], 15) == 0))
222
	    {
223
	      gchar *equal_pos = strchr ((*argv)[i], '=');
224
	      
225 226 227
	      if (equal_pos != NULL)
		{
		  gdk_debug_flags &= ~g_parse_debug_string (equal_pos+1,
228
							    (GDebugKey *) gdk_debug_keys,
229 230 231
							    gdk_ndebug_keys);
		}
	      else if ((i + 1) < *argc && (*argv)[i + 1])
232 233
		{
		  gdk_debug_flags &= ~g_parse_debug_string ((*argv)[i+1],
234
							    (GDebugKey *) gdk_debug_keys,
235
							    gdk_ndebug_keys);
236
		  (*argv)[i] = NULL;
Elliot Lee's avatar
Elliot Lee committed
237 238
		  i += 1;
		}
239
	      (*argv)[i] = NULL;
Elliot Lee's avatar
Elliot Lee committed
240
	    }
Owen Taylor's avatar
Owen Taylor committed
241
	  else 
242
#endif /* G_ENABLE_DEBUG */
Owen Taylor's avatar
Owen Taylor committed
243
	    if (strcmp ("--display", (*argv)[i]) == 0)
244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268
	      {
		(*argv)[i] = NULL;
		
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    gdk_display_name = g_strdup ((*argv)[i + 1]);
		    (*argv)[i + 1] = NULL;
		    i += 1;
		  }
	      }
	    else if (strcmp ("--sync", (*argv)[i]) == 0)
	      {
		(*argv)[i] = NULL;
		synchronize = TRUE;
	      }
	    else if (strcmp ("--no-xshm", (*argv)[i]) == 0)
	      {
		(*argv)[i] = NULL;
		gdk_use_xshm = FALSE;
	      }
	    else if (strcmp ("--name", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
269
		    g_set_prgname ((*argv)[i]);
270 271 272 273 274 275 276 277 278 279 280 281
		    (*argv)[i] = NULL;
		  }
	      }
	    else if (strcmp ("--class", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
		    gdk_progclass = (*argv)[i];
		    (*argv)[i] = NULL;
		  }
	      }
Elliot Lee's avatar
Elliot Lee committed
282
#ifdef XINPUT_GXI
283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300
	    else if (strcmp ("--gxid_host", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
		    gdk_input_gxid_host = ((*argv)[i]);
		    (*argv)[i] = NULL;
		  }
	      }
	    else if (strcmp ("--gxid_port", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
		    gdk_input_gxid_port = atoi ((*argv)[i]);
		    (*argv)[i] = NULL;
		  }
	      }
Elliot Lee's avatar
Elliot Lee committed
301
#endif
302
#ifdef USE_XIM
303 304 305 306 307 308
	    else if (strcmp ("--xim-preedit", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
		    if (strcmp ("none", (*argv)[i]) == 0)
309
		      gdk_im_set_best_style (GDK_IM_PREEDIT_NONE);
310
		    else if (strcmp ("nothing", (*argv)[i]) == 0)
311
		      gdk_im_set_best_style (GDK_IM_PREEDIT_NOTHING);
312
		    else if (strcmp ("area", (*argv)[i]) == 0)
313
		      gdk_im_set_best_style (GDK_IM_PREEDIT_AREA);
314
		    else if (strcmp ("position", (*argv)[i]) == 0)
315
		      gdk_im_set_best_style (GDK_IM_PREEDIT_POSITION);
316
		    else if (strcmp ("callbacks", (*argv)[i]) == 0)
317
		      gdk_im_set_best_style (GDK_IM_PREEDIT_CALLBACKS);
318 319 320 321 322 323 324 325
		  }
	      }
	    else if (strcmp ("--xim-status", (*argv)[i]) == 0)
	      {
		if ((i + 1) < *argc && (*argv)[i + 1])
		  {
		    (*argv)[i++] = NULL;
		    if (strcmp ("none", (*argv)[i]) == 0)
326
		      gdk_im_set_best_style (GDK_IM_STATUS_NONE);
327
		    else if (strcmp ("nothing", (*argv)[i]) == 0)
328
		      gdk_im_set_best_style (GDK_IM_STATUS_NOTHING);
329
		    else if (strcmp ("area", (*argv)[i]) == 0)
330
		      gdk_im_set_best_style (GDK_IM_STATUS_AREA);
331
		    else if (strcmp ("callbacks", (*argv)[i]) == 0)
332
		      gdk_im_set_best_style (GDK_IM_STATUS_CALLBACKS);
333 334
		  }
	      }
335
#endif
336
	  
Elliot Lee's avatar
Elliot Lee committed
337 338
	  i += 1;
	}
339
      
Elliot Lee's avatar
Elliot Lee committed
340 341 342 343 344
      for (i = 1; i < *argc; i++)
	{
	  for (k = i; k < *argc; k++)
	    if ((*argv)[k] != NULL)
	      break;
345
	  
Elliot Lee's avatar
Elliot Lee committed
346 347 348 349 350 351 352 353 354 355 356
	  if (k > i)
	    {
	      k -= i;
	      for (j = i + k; j < *argc; j++)
		(*argv)[j-k] = (*argv)[j];
	      *argc -= k;
	    }
	}
    }
  else
    {
357
      g_set_prgname ("<unknown>");
Elliot Lee's avatar
Elliot Lee committed
358
    }
359
  
360
  GDK_NOTE (MISC, g_message ("progname: \"%s\"", g_get_prgname ()));
361
  
Elliot Lee's avatar
Elliot Lee committed
362 363
  gdk_display = XOpenDisplay (gdk_display_name);
  if (!gdk_display)
364 365 366 367
    {
      g_warning ("cannot open display: %s", XDisplayName (gdk_display_name));
      exit(1);
    }
368
  
Elliot Lee's avatar
Elliot Lee committed
369 370
  if (synchronize)
    XSynchronize (gdk_display, True);
371
  
Elliot Lee's avatar
Elliot Lee committed
372 373
  gdk_screen = DefaultScreen (gdk_display);
  gdk_root_window = RootWindow (gdk_display, gdk_screen);
374
  
Elliot Lee's avatar
Elliot Lee committed
375 376 377
  gdk_leader_window = XCreateSimpleWindow(gdk_display, gdk_root_window,
					  10, 10, 10, 10, 0, 0 , 0);
  class_hint = XAllocClassHint();
378
  class_hint->res_name = g_get_prgname ();
379 380
  if (gdk_progclass == NULL)
    {
381
      gdk_progclass = g_strdup (g_get_prgname ());
382 383
      gdk_progclass[0] = toupper (gdk_progclass[0]);
    }
Elliot Lee's avatar
Elliot Lee committed
384
  class_hint->res_class = gdk_progclass;
385 386 387
  XmbSetWMProperties (gdk_display, gdk_leader_window,
                      NULL, NULL, argv_orig, argc_orig, 
                      NULL, NULL, class_hint);
Elliot Lee's avatar
Elliot Lee committed
388
  XFree (class_hint);
389 390 391 392 393
  
  for (i = 0; i < argc_orig; i++)
    g_free(argv_orig[i]);
  g_free(argv_orig);
  
Elliot Lee's avatar
Elliot Lee committed
394 395 396 397 398 399
  gdk_wm_delete_window = XInternAtom (gdk_display, "WM_DELETE_WINDOW", True);
  gdk_wm_take_focus = XInternAtom (gdk_display, "WM_TAKE_FOCUS", True);
  gdk_wm_protocols = XInternAtom (gdk_display, "WM_PROTOCOLS", True);
  gdk_wm_window_protocols[0] = gdk_wm_delete_window;
  gdk_wm_window_protocols[1] = gdk_wm_take_focus;
  gdk_selection_property = XInternAtom (gdk_display, "GDK_SELECTION", False);
400
  
Elliot Lee's avatar
Elliot Lee committed
401 402
  XGetKeyboardControl (gdk_display, &keyboard_state);
  autorepeat = keyboard_state.global_auto_repeat;
403
  
Elliot Lee's avatar
Elliot Lee committed
404 405 406
  timer.tv_sec = 0;
  timer.tv_usec = 0;
  timerp = NULL;
407
  
Tim Janik's avatar
Tim Janik committed
408
  g_atexit (gdk_exit_func);
409
  
410
  gdk_events_init ();
Elliot Lee's avatar
Elliot Lee committed
411 412 413 414
  gdk_visual_init ();
  gdk_window_init ();
  gdk_image_init ();
  gdk_input_init ();
415 416
  gdk_dnd_init ();

417
#ifdef USE_XIM
418
  gdk_im_open ();
419
#endif
420
  
421
  gdk_initialized = 1;
Elliot Lee's avatar
Elliot Lee committed
422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445
}

/*
 *--------------------------------------------------------------
 * gdk_exit
 *
 *   Restores the library to an un-itialized state and exits
 *   the program using the "exit" system call.
 *
 * Arguments:
 *   "errorcode" is the error value to pass to "exit".
 *
 * Results:
 *   Allocated structures are freed and the program exits
 *   cleanly.
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

void
gdk_exit (int errorcode)
{
446 447 448
  /* de-initialisation is done by the gdk_exit_funct(),
     no need to do this here (Alex J.) */
  exit (errorcode);
Elliot Lee's avatar
Elliot Lee committed
449 450
}

451 452 453 454 455 456 457 458 459 460 461 462
void
gdk_set_use_xshm (gint use_xshm)
{
  gdk_use_xshm = use_xshm;
}

gint
gdk_get_use_xshm (void)
{
  return gdk_use_xshm;
}

Elliot Lee's avatar
Elliot Lee committed
463 464
/*
 *--------------------------------------------------------------
465
 * gdk_time_get
Elliot Lee's avatar
Elliot Lee committed
466
 *
467 468
 *   Get the number of milliseconds since the library was
 *   initialized.
Elliot Lee's avatar
Elliot Lee committed
469 470 471 472
 *
 * Arguments:
 *
 * Results:
473 474 475 476
 *   The time since the library was initialized is returned.
 *   This time value is accurate to milliseconds even though
 *   a more accurate time down to the microsecond could be
 *   returned.
Elliot Lee's avatar
Elliot Lee committed
477 478 479 480 481 482
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

483 484
guint32
gdk_time_get (void)
Elliot Lee's avatar
Elliot Lee committed
485
{
486 487 488
  struct timeval end;
  struct timeval elapsed;
  guint32 milliseconds;
489
  
490
  X_GETTIMEOFDAY (&end);
491
  
492
  if (start.tv_usec > end.tv_usec)
Owen Taylor's avatar
Owen Taylor committed
493
    {
494 495
      end.tv_usec += 1000000;
      end.tv_sec--;
Owen Taylor's avatar
Owen Taylor committed
496
    }
497 498
  elapsed.tv_sec = end.tv_sec - start.tv_sec;
  elapsed.tv_usec = end.tv_usec - start.tv_usec;
Owen Taylor's avatar
Owen Taylor committed
499
  
500 501 502
  milliseconds = (elapsed.tv_sec * 1000) + (elapsed.tv_usec / 1000);
  
  return milliseconds;
Elliot Lee's avatar
Elliot Lee committed
503 504
}

505 506
/*
 *--------------------------------------------------------------
507
 * gdk_timer_get
508
 *
509
 *   Returns the current timer.
510 511 512
 *
 * Arguments:
 *
513 514 515
 * Results:
 *   Returns the current timer interval. This interval is
 *   in units of milliseconds.
516 517 518
 *
 * Side effects:
 *
519
 *--------------------------------------------------------------
520 521
 */

522 523
guint32
gdk_timer_get (void)
524
{
525
  return timer_val;
526 527
}

Elliot Lee's avatar
Elliot Lee committed
528 529
/*
 *--------------------------------------------------------------
530
 * gdk_timer_set
Elliot Lee's avatar
Elliot Lee committed
531
 *
532
 *   Sets the timer interval.
Elliot Lee's avatar
Elliot Lee committed
533 534
 *
 * Arguments:
535
 *   "milliseconds" is the new value for the timer.
Elliot Lee's avatar
Elliot Lee committed
536 537 538 539
 *
 * Results:
 *
 * Side effects:
540 541 542 543
 *   Calls to "gdk_event_get" will last for a maximum
 *   of time of "milliseconds". However, a value of 0
 *   milliseconds will cause "gdk_event_get" to block
 *   indefinately until an event is received.
Elliot Lee's avatar
Elliot Lee committed
544 545 546 547
 *
 *--------------------------------------------------------------
 */

548 549
void
gdk_timer_set (guint32 milliseconds)
Elliot Lee's avatar
Elliot Lee committed
550
{
551 552 553
  timer_val = milliseconds;
  timer.tv_sec = milliseconds / 1000;
  timer.tv_usec = (milliseconds % 1000) * 1000;
554
  
Elliot Lee's avatar
Elliot Lee committed
555 556 557
}

void
558
gdk_timer_enable (void)
Elliot Lee's avatar
Elliot Lee committed
559
{
560 561 562 563 564 565 566
  timerp = &timer;
}

void
gdk_timer_disable (void)
{
  timerp = NULL;
Elliot Lee's avatar
Elliot Lee committed
567 568 569 570
}

/*
 *--------------------------------------------------------------
571
 * gdk_pointer_grab
Elliot Lee's avatar
Elliot Lee committed
572
 *
573
 *   Grabs the pointer to a specific window
Elliot Lee's avatar
Elliot Lee committed
574 575
 *
 * Arguments:
576 577 578 579 580 581 582
 *   "window" is the window which will receive the grab
 *   "owner_events" specifies whether events will be reported as is,
 *     or relative to "window"
 *   "event_mask" masks only interesting events
 *   "confine_to" limits the cursor movement to the specified window
 *   "cursor" changes the cursor for the duration of the grab
 *   "time" specifies the time
Elliot Lee's avatar
Elliot Lee committed
583 584 585 586
 *
 * Results:
 *
 * Side effects:
587
 *   requires a corresponding call to gdk_pointer_ungrab
Elliot Lee's avatar
Elliot Lee committed
588 589 590 591
 *
 *--------------------------------------------------------------
 */

592 593 594 595 596 597 598
gint
gdk_pointer_grab (GdkWindow *	  window,
		  gint		  owner_events,
		  GdkEventMask	  event_mask,
		  GdkWindow *	  confine_to,
		  GdkCursor *	  cursor,
		  guint32	  time)
Elliot Lee's avatar
Elliot Lee committed
599
{
600 601 602 603 604 605 606 607 608 609
  /*  From gdkwindow.c	*/
  gint return_val;
  GdkWindowPrivate *window_private;
  GdkWindowPrivate *confine_to_private;
  GdkCursorPrivate *cursor_private;
  guint xevent_mask;
  Window xwindow;
  Window xconfine_to;
  Cursor xcursor;
  int i;
Elliot Lee's avatar
Elliot Lee committed
610
  
611
  g_return_val_if_fail (window != NULL, 0);
612
  
613 614 615
  window_private = (GdkWindowPrivate*) window;
  confine_to_private = (GdkWindowPrivate*) confine_to;
  cursor_private = (GdkCursorPrivate*) cursor;
616
  
617
  xwindow = window_private->xwindow;
618
  
619 620 621 622
  if (!confine_to || confine_to_private->destroyed)
    xconfine_to = None;
  else
    xconfine_to = confine_to_private->xwindow;
623
  
624 625 626 627
  if (!cursor)
    xcursor = None;
  else
    xcursor = cursor_private->xcursor;
628 629
  
  
630 631
  xevent_mask = 0;
  for (i = 0; i < gdk_nevent_masks; i++)
Owen Taylor's avatar
Owen Taylor committed
632
    {
633 634
      if (event_mask & (1 << (i + 1)))
	xevent_mask |= gdk_event_mask_table[i];
Owen Taylor's avatar
Owen Taylor committed
635
    }
636
  
637 638 639 640 641 642
  if (gdk_input_vtable.grab_pointer)
    return_val = gdk_input_vtable.grab_pointer (window,
						owner_events,
						event_mask,
						confine_to,
						time);
643
  else
644
    return_val = Success;
645
  
646
  if (return_val == Success)
Elliot Lee's avatar
Elliot Lee committed
647
    {
648 649 650 651 652 653 654 655 656 657 658
      if (!window_private->destroyed)
	return_val = XGrabPointer (window_private->xdisplay,
				   xwindow,
				   owner_events,
				   xevent_mask,
				   GrabModeAsync, GrabModeAsync,
				   xconfine_to,
				   xcursor,
				   time);
      else
	return_val = AlreadyGrabbed;
Elliot Lee's avatar
Elliot Lee committed
659
    }
660
  
661 662
  if (return_val == GrabSuccess)
    gdk_xgrab_window = window_private;
663
  
664
  return return_val;
Elliot Lee's avatar
Elliot Lee committed
665 666 667 668
}

/*
 *--------------------------------------------------------------
669
 * gdk_pointer_ungrab
Elliot Lee's avatar
Elliot Lee committed
670
 *
671
 *   Releases any pointer grab
Elliot Lee's avatar
Elliot Lee committed
672 673 674 675 676 677 678 679 680 681
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

682 683
void
gdk_pointer_ungrab (guint32 time)
Elliot Lee's avatar
Elliot Lee committed
684
{
685 686 687 688 689
  if (gdk_input_vtable.ungrab_pointer)
    gdk_input_vtable.ungrab_pointer (time);
  
  XUngrabPointer (gdk_display, time);
  gdk_xgrab_window = NULL;
Elliot Lee's avatar
Elliot Lee committed
690 691 692 693
}

/*
 *--------------------------------------------------------------
694
 * gdk_pointer_is_grabbed
Elliot Lee's avatar
Elliot Lee committed
695
 *
696
 *   Tell wether there is an active x pointer grab in effect
Elliot Lee's avatar
Elliot Lee committed
697 698 699 700 701 702 703 704 705 706
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

707
gint
708
gdk_pointer_is_grabbed (void)
Elliot Lee's avatar
Elliot Lee committed
709
{
710
  return gdk_xgrab_window != NULL;
Elliot Lee's avatar
Elliot Lee committed
711 712 713 714
}

/*
 *--------------------------------------------------------------
715
 * gdk_keyboard_grab
Elliot Lee's avatar
Elliot Lee committed
716
 *
717
 *   Grabs the keyboard to a specific window
Elliot Lee's avatar
Elliot Lee committed
718 719 720 721 722 723 724 725 726 727
 *
 * Arguments:
 *   "window" is the window which will receive the grab
 *   "owner_events" specifies whether events will be reported as is,
 *     or relative to "window"
 *   "time" specifies the time
 *
 * Results:
 *
 * Side effects:
728
 *   requires a corresponding call to gdk_keyboard_ungrab
Elliot Lee's avatar
Elliot Lee committed
729
 *
730 731
 *--------------------------------------------------------------
 */
732

733 734 735 736 737 738 739
gint
gdk_keyboard_grab (GdkWindow *	   window,
		   gint		   owner_events,
		   guint32	   time)
{
  GdkWindowPrivate *window_private;
  Window xwindow;
740
  
741
  g_return_val_if_fail (window != NULL, 0);
742
  
743 744
  window_private = (GdkWindowPrivate*) window;
  xwindow = window_private->xwindow;
745
  
746 747 748 749 750 751 752 753
  if (!window_private->destroyed)
    return XGrabKeyboard (window_private->xdisplay,
			  xwindow,
			  owner_events,
			  GrabModeAsync, GrabModeAsync,
			  time);
  else
    return AlreadyGrabbed;
Elliot Lee's avatar
Elliot Lee committed
754 755
}

756 757 758 759 760 761 762 763 764 765 766 767 768 769
/*
 *--------------------------------------------------------------
 * gdk_keyboard_ungrab
 *
 *   Releases any keyboard grab
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */
770

771 772 773 774 775
void
gdk_keyboard_ungrab (guint32 time)
{
  XUngrabKeyboard (gdk_display, time);
}
776

777 778 779 780 781 782 783 784 785 786 787 788 789 790
/*
 *--------------------------------------------------------------
 * gdk_screen_width
 *
 *   Return the width of the screen.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */
791

792 793 794 795 796 797 798 799
gint
gdk_screen_width (void)
{
  gint return_val;
  
  return_val = DisplayWidth (gdk_display, gdk_screen);
  
  return return_val;
800 801
}

802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818
/*
 *--------------------------------------------------------------
 * gdk_screen_height
 *
 *   Return the height of the screen.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_height (void)
Elliot Lee's avatar
Elliot Lee committed
819
{
820
  gint return_val;
821
  
822
  return_val = DisplayHeight (gdk_display, gdk_screen);
823
  
824
  return return_val;
Elliot Lee's avatar
Elliot Lee committed
825 826
}

827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843
/*
 *--------------------------------------------------------------
 * gdk_screen_width_mm
 *
 *   Return the width of the screen in millimeters.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_width_mm (void)
Elliot Lee's avatar
Elliot Lee committed
844
{
845 846 847
  gint return_val;
  
  return_val = DisplayWidthMM (gdk_display, gdk_screen);
848
  
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870
  return return_val;
}

/*
 *--------------------------------------------------------------
 * gdk_screen_height
 *
 *   Return the height of the screen in millimeters.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_height_mm (void)
{
  gint return_val;
871
  
872
  return_val = DisplayHeightMM (gdk_display, gdk_screen);
873
  
874 875 876
  return return_val;
}

877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913
/*
 *--------------------------------------------------------------
 * gdk_set_sm_client_id
 *
 *   Set the SM_CLIENT_ID property on the WM_CLIENT_LEADER window
 *   so that the window manager can save our state using the
 *   X11R6 ICCCM session management protocol. A NULL value should 
 *   be set following disconnection from the session manager to
 *   remove the SM_CLIENT_ID property.
 *
 * Arguments:
 * 
 *   "sm_client_id" specifies the client id assigned to us by the
 *   session manager or NULL to remove the property.
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

void
gdk_set_sm_client_id (const gchar* sm_client_id)
{
  if (sm_client_id && strcmp (sm_client_id, ""))
    {
      XChangeProperty (gdk_display, gdk_leader_window,
	   	       gdk_atom_intern ("SM_CLIENT_ID", FALSE),
		       XA_STRING, 8, PropModeReplace,
		       sm_client_id, strlen(sm_client_id));
    }
  else
     XDeleteProperty (gdk_display, gdk_leader_window,
	   	      gdk_atom_intern ("SM_CLIENT_ID", FALSE));
}

914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933
void
gdk_key_repeat_disable (void)
{
  XAutoRepeatOff (gdk_display);
}

void
gdk_key_repeat_restore (void)
{
  if (autorepeat)
    XAutoRepeatOn (gdk_display);
  else
    XAutoRepeatOff (gdk_display);
}


void
gdk_beep (void)
{
  XBell(gdk_display, 100);
Elliot Lee's avatar
Elliot Lee committed
934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953
}

/*
 *--------------------------------------------------------------
 * gdk_exit_func
 *
 *   This is the "atexit" function that makes sure the
 *   library gets a chance to cleanup.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *   The library is un-initialized and the program exits.
 *
 *--------------------------------------------------------------
 */

static void
954
gdk_exit_func (void)
Elliot Lee's avatar
Elliot Lee committed
955
{
956
  static gboolean in_gdk_exit_func = FALSE;
957
  
958 959
  /* This is to avoid an infinite loop if a program segfaults in
     an atexit() handler (and yes, it does happen, especially if a program
960
     has trounced over memory too badly for even g_message to work) */
961 962
  if (in_gdk_exit_func == TRUE)
    return;
963
  in_gdk_exit_func = TRUE;
964
  
965
  if (gdk_initialized)
Elliot Lee's avatar
Elliot Lee committed
966
    {
967 968 969 970 971 972
#ifdef USE_XIM
      /* cleanup IC */
      gdk_ic_cleanup ();
      /* close IM */
      gdk_im_close ();
#endif
Elliot Lee's avatar
Elliot Lee committed
973 974 975
      gdk_image_exit ();
      gdk_input_exit ();
      gdk_key_repeat_restore ();
976
      
Elliot Lee's avatar
Elliot Lee committed
977
      XCloseDisplay (gdk_display);
978
      gdk_initialized = 0;
Elliot Lee's avatar
Elliot Lee committed
979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004
    }
}

/*
 *--------------------------------------------------------------
 * gdk_x_error
 *
 *   The X error handling routine.
 *
 * Arguments:
 *   "display" is the X display the error orignated from.
 *   "error" is the XErrorEvent that we are handling.
 *
 * Results:
 *   Either we were expecting some sort of error to occur,
 *   in which case we set the "gdk_error_code" flag, or this
 *   error was unexpected, in which case we will print an
 *   error message and exit. (Since trying to continue will
 *   most likely simply lead to more errors).
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

static int
1005
gdk_x_error (Display	 *display,
Elliot Lee's avatar
Elliot Lee committed
1006 1007 1008
	     XErrorEvent *error)
{
  char buf[64];
1009
  
Elliot Lee's avatar
Elliot Lee committed
1010 1011 1012
  if (gdk_error_warnings)
    {
      XGetErrorText (display, error->error_code, buf, 63);
Owen Taylor's avatar
Owen Taylor committed
1013 1014 1015 1016 1017 1018
      g_error ("%s\n  serial %ld error_code %d request_code %d minor_code %d\n", 
	       buf, 
	       error->serial, 
	       error->error_code, 
	       error->request_code,
	       error->minor_code);
Elliot Lee's avatar
Elliot Lee committed
1019
    }
1020
  
Elliot Lee's avatar
Elliot Lee committed
1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
  gdk_error_code = -1;
  return 0;
}

/*
 *--------------------------------------------------------------
 * gdk_x_io_error
 *
 *   The X I/O error handling routine.
 *
 * Arguments:
 *   "display" is the X display the error orignated from.
 *
 * Results:
 *   An X I/O error basically means we lost our connection
 *   to the X server. There is not much we can do to
 *   continue, so simply print an error message and exit.
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

static int
gdk_x_io_error (Display *display)
{
  g_error ("an x io error occurred");
  return 0;
}

Manish Singh's avatar
Manish Singh committed
1051 1052 1053 1054 1055
gchar *
gdk_get_display(void)
{
  return (gchar *)XDisplayName (gdk_display_name);
}
1056 1057 1058 1059 1060 1061

gint 
gdk_send_xevent (Window window, gboolean propagate, glong event_mask,
		 XEvent *event_send)
{
  Status result;
1062
  gint old_warnings = gdk_error_warnings;
1063 1064 1065 1066 1067 1068
  
  gdk_error_code = 0;
  
  gdk_error_warnings = 0;
  result = XSendEvent (gdk_display, window, propagate, event_mask, event_send);
  XSync (gdk_display, False);
1069
  gdk_error_warnings = old_warnings;
1070
  
1071 1072
  return result && (gdk_error_code != -1);
}
Tim Janik's avatar
Tim Janik committed
1073

1074
#ifndef HAVE_XCONVERTCASE
1075 1076 1077 1078 1079 1080 1081 1082 1083
/* compatibility function from X11R6.3, since XConvertCase is not
 * supplied by X11R5.
 */
static void
gdkx_XConvertCase (KeySym symbol,
		   KeySym *lower,
		   KeySym *upper)
{
  register KeySym sym = symbol;
1084
  
1085 1086
  g_return_if_fail (lower != NULL);
  g_return_if_fail (upper != NULL);
1087
  
1088 1089
  *lower = sym;
  *upper = sym;
1090
  
1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184
  switch (sym >> 8)
    {
#if	defined (GDK_A) && defined (GDK_Ooblique)
    case 0: /* Latin 1 */
      if ((sym >= GDK_A) && (sym <= GDK_Z))
	*lower += (GDK_a - GDK_A);
      else if ((sym >= GDK_a) && (sym <= GDK_z))
	*upper -= (GDK_a - GDK_A);
      else if ((sym >= GDK_Agrave) && (sym <= GDK_Odiaeresis))
	*lower += (GDK_agrave - GDK_Agrave);
      else if ((sym >= GDK_agrave) && (sym <= GDK_odiaeresis))
	*upper -= (GDK_agrave - GDK_Agrave);
      else if ((sym >= GDK_Ooblique) && (sym <= GDK_Thorn))
	*lower += (GDK_oslash - GDK_Ooblique);
      else if ((sym >= GDK_oslash) && (sym <= GDK_thorn))
	*upper -= (GDK_oslash - GDK_Ooblique);
      break;
#endif	/* LATIN1 */
      
#if	defined (GDK_Aogonek) && defined (GDK_tcedilla)
    case 1: /* Latin 2 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
      if (sym == GDK_Aogonek)
	*lower = GDK_aogonek;
      else if (sym >= GDK_Lstroke && sym <= GDK_Sacute)
	*lower += (GDK_lstroke - GDK_Lstroke);
      else if (sym >= GDK_Scaron && sym <= GDK_Zacute)
	*lower += (GDK_scaron - GDK_Scaron);
      else if (sym >= GDK_Zcaron && sym <= GDK_Zabovedot)
	*lower += (GDK_zcaron - GDK_Zcaron);
      else if (sym == GDK_aogonek)
	*upper = GDK_Aogonek;
      else if (sym >= GDK_lstroke && sym <= GDK_sacute)
	*upper -= (GDK_lstroke - GDK_Lstroke);
      else if (sym >= GDK_scaron && sym <= GDK_zacute)
	*upper -= (GDK_scaron - GDK_Scaron);
      else if (sym >= GDK_zcaron && sym <= GDK_zabovedot)
	*upper -= (GDK_zcaron - GDK_Zcaron);
      else if (sym >= GDK_Racute && sym <= GDK_Tcedilla)
	*lower += (GDK_racute - GDK_Racute);
      else if (sym >= GDK_racute && sym <= GDK_tcedilla)
	*upper -= (GDK_racute - GDK_Racute);
      break;
#endif	/* LATIN2 */
      
#if	defined (GDK_Hstroke) && defined (GDK_Cabovedot)
    case 2: /* Latin 3 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
      if (sym >= GDK_Hstroke && sym <= GDK_Hcircumflex)
	*lower += (GDK_hstroke - GDK_Hstroke);
      else if (sym >= GDK_Gbreve && sym <= GDK_Jcircumflex)
	*lower += (GDK_gbreve - GDK_Gbreve);
      else if (sym >= GDK_hstroke && sym <= GDK_hcircumflex)
	*upper -= (GDK_hstroke - GDK_Hstroke);
      else if (sym >= GDK_gbreve && sym <= GDK_jcircumflex)
	*upper -= (GDK_gbreve - GDK_Gbreve);
      else if (sym >= GDK_Cabovedot && sym <= GDK_Scircumflex)
	*lower += (GDK_cabovedot - GDK_Cabovedot);
      else if (sym >= GDK_cabovedot && sym <= GDK_scircumflex)
	*upper -= (GDK_cabovedot - GDK_Cabovedot);
      break;
#endif	/* LATIN3 */
      
#if	defined (GDK_Rcedilla) && defined (GDK_Amacron)
    case 3: /* Latin 4 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
      if (sym >= GDK_Rcedilla && sym <= GDK_Tslash)
	*lower += (GDK_rcedilla - GDK_Rcedilla);
      else if (sym >= GDK_rcedilla && sym <= GDK_tslash)
	*upper -= (GDK_rcedilla - GDK_Rcedilla);
      else if (sym == GDK_ENG)
	*lower = GDK_eng;
      else if (sym == GDK_eng)
	*upper = GDK_ENG;
      else if (sym >= GDK_Amacron && sym <= GDK_Umacron)
	*lower += (GDK_amacron - GDK_Amacron);
      else if (sym >= GDK_amacron && sym <= GDK_umacron)
	*upper -= (GDK_amacron - GDK_Amacron);
      break;
#endif	/* LATIN4 */
      
#if	defined (GDK_Serbian_DJE) && defined (GDK_Cyrillic_yu)
    case 6: /* Cyrillic */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
      if (sym >= GDK_Serbian_DJE && sym <= GDK_Serbian_DZE)
	*lower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
      else if (sym >= GDK_Serbian_dje && sym <= GDK_Serbian_dze)
	*upper += (GDK_Serbian_DJE - GDK_Serbian_dje);
      else if (sym >= GDK_Cyrillic_YU && sym <= GDK_Cyrillic_HARDSIGN)
	*lower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
      else if (sym >= GDK_Cyrillic_yu && sym <= GDK_Cyrillic_hardsign)
	*upper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
      break;
#endif	/* CYRILLIC */
1185
      
1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
#if	defined (GDK_Greek_ALPHAaccent) && defined (GDK_Greek_finalsmallsigma)
    case 7: /* Greek */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
      if (sym >= GDK_Greek_ALPHAaccent && sym <= GDK_Greek_OMEGAaccent)
	*lower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
      else if (sym >= GDK_Greek_alphaaccent && sym <= GDK_Greek_omegaaccent &&
	       sym != GDK_Greek_iotaaccentdieresis &&
	       sym != GDK_Greek_upsilonaccentdieresis)
	*upper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
      else if (sym >= GDK_Greek_ALPHA && sym <= GDK_Greek_OMEGA)
	*lower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
      else if (sym >= GDK_Greek_alpha && sym <= GDK_Greek_omega &&
	       sym != GDK_Greek_finalsmallsigma)
	*upper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
      break;
#endif	/* GREEK */
    }
}
1204
#endif
1205

Tim Janik's avatar
Tim Janik committed
1206
gchar*
1207
gdk_keyval_name (guint	      keyval)
Tim Janik's avatar
Tim Janik committed
1208 1209 1210 1211 1212 1213 1214 1215
{
  return XKeysymToString (keyval);
}

guint
gdk_keyval_from_name (const gchar *keyval_name)
{
  g_return_val_if_fail (keyval_name != NULL, 0);
1216
  
Tim Janik's avatar
Tim Janik committed
1217 1218 1219 1220
  return XStringToKeysym (keyval_name);
}

guint
1221
gdk_keyval_to_upper (guint	  keyval)
Tim Janik's avatar
Tim Janik committed
1222 1223 1224 1225 1226
{
  if (keyval)
    {
      KeySym lower_val = 0;
      KeySym upper_val = 0;
1227
      
1228
      XConvertCase (keyval, &lower_val, &upper_val);
Tim Janik's avatar
Tim Janik committed
1229 1230 1231 1232 1233 1234
      return upper_val;
    }
  return 0;
}

guint
1235
gdk_keyval_to_lower (guint	  keyval)
Tim Janik's avatar
Tim Janik committed
1236 1237 1238 1239 1240
{
  if (keyval)
    {
      KeySym lower_val = 0;
      KeySym upper_val = 0;