gdk.c 17 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 20 21 22 23 24 25 26

/*
 * Modified by the GTK+ Team and others 1997-1999.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

27
#include "config.h"
Elliot Lee's avatar
Elliot Lee committed
28 29

#include <string.h>
30
#include <stdlib.h>
Elliot Lee's avatar
Elliot Lee committed
31

Owen Taylor's avatar
Owen Taylor committed
32 33
#include "gdk.h"
#include "gdkprivate.h"
Elliot Lee's avatar
Elliot Lee committed
34 35

typedef struct _GdkPredicate  GdkPredicate;
36
typedef struct _GdkErrorTrap  GdkErrorTrap;
Elliot Lee's avatar
Elliot Lee committed
37 38 39 40 41 42 43

struct _GdkPredicate
{
  GdkEventFunc func;
  gpointer data;
};

44 45 46 47 48 49
struct _GdkErrorTrap
{
  gint error_warnings;
  gint error_code;
};

Elliot Lee's avatar
Elliot Lee committed
50 51 52
/* 
 * Private function declarations
 */
53
static void	    gdk_exit_func		 (void);
Elliot Lee's avatar
Elliot Lee committed
54

55 56 57 58
GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
					 GdkEvent  *event,
					 gpointer   data);

Elliot Lee's avatar
Elliot Lee committed
59 60
/* Private variable declarations
 */
61
static int gdk_initialized = 0;			    /* 1 if the library is initialized,
Elliot Lee's avatar
Elliot Lee committed
62 63 64
						     * 0 otherwise.
						     */

65 66 67
static GSList *gdk_error_traps = NULL;               /* List of error traps */
static GSList *gdk_error_trap_free_list = NULL;      /* Free list */

68
#ifdef G_ENABLE_DEBUG
69
static const GDebugKey gdk_debug_keys[] = {
70 71 72
  {"events",	    GDK_DEBUG_EVENTS},
  {"misc",	    GDK_DEBUG_MISC},
  {"dnd",	    GDK_DEBUG_DND},
73
  {"color-context", GDK_DEBUG_COLOR_CONTEXT},
74
  {"xim",	    GDK_DEBUG_XIM}
75
};
76 77 78

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

79
#endif /* G_ENABLE_DEBUG */
Elliot Lee's avatar
Elliot Lee committed
80

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
GdkArgContext *
gdk_arg_context_new (gpointer cb_data)
{
  GdkArgContext *result = g_new (GdkArgContext, 1);
  result->tables = g_ptr_array_new ();
  result->cb_data = cb_data;

  return result;
}

void
gdk_arg_context_destroy (GdkArgContext *context)
{
  g_ptr_array_free (context->tables, TRUE);
  g_free (context);
}

void
gdk_arg_context_add_table (GdkArgContext *context, GdkArgDesc *table)
{
  g_ptr_array_add (context->tables, table);
}

void
gdk_arg_context_parse (GdkArgContext *context, gint *argc, gchar ***argv)
{
  int i, j, k;

  /* Save a copy of the original argc and argv */
  if (argc && argv)
    {
      for (i = 1; i < *argc; i++)
	{
	  char *arg;
	  
	  if (!(*argv)[i][0] == '-' && (*argv)[i][1] == '-')
	    continue;
	  
	  arg = (*argv)[i] + 2;

	  /* '--' terminates list of arguments */
	  if (arg == 0)
	    {
	      (*argv)[i] = NULL;
	      break;
	    }
	      
	  for (j = 0; j < context->tables->len; j++)
	    {
	      GdkArgDesc *table = context->tables->pdata[j];
	      for (k = 0; table[k].name; k++)
		{
		  switch (table[k].type)
		    {
		    case GDK_ARG_STRING:
		    case GDK_ARG_CALLBACK:
		    case GDK_ARG_INT:
		      {
			int len = strlen (table[k].name);
			
			if (strncmp (arg, table[k].name, len) == 0 &&
			    (arg[len] == '=' || argc[len] == 0))
			  {
			    char *value = NULL;

			    (*argv)[i] = NULL;

			    if (arg[len] == '=')
			      value = arg + len + 1;
			    else if (i < *argc - 1)
			      {
				value = (*argv)[i + 1];
				(*argv)[i+1] = NULL;
				i++;
			      }
			    else
			      value = "";

			    switch (table[k].type)
			      {
			      case GDK_ARG_STRING:
				*(gchar **)table[k].location = g_strdup (value);
				break;
			      case GDK_ARG_INT:
				*(gint *)table[k].location = atoi (value);
				break;
			      case GDK_ARG_CALLBACK:
				(*table[k].callback)(table[k].name, value, context->cb_data);
				break;
			      default:
			      }

			    goto next_arg;
			  }
			break;
		      }
		    case GDK_ARG_BOOL:
		    case GDK_ARG_NOBOOL:
		      if (strcmp (arg, table[k].name) == 0)
			{
			  (*argv)[i] = NULL;
			  
			  *(gboolean *)table[k].location = (table[k].type == GDK_ARG_BOOL) ? TRUE : FALSE;
			  goto next_arg;
			}
		    }
		}
	    }
	next_arg:
	}
	  
      for (i = 1; i < *argc; i++)
	{
	  for (k = i; k < *argc; k++)
	    if ((*argv)[k] != NULL)
	      break;
	  
	  if (k > i)
	    {
	      k -= i;
	      for (j = i + k; j < *argc; j++)
		(*argv)[j-k] = (*argv)[j];
	      *argc -= k;
	    }
	}
    }
}

static void
gdk_arg_debug_cb (const char *key, const char *value, gpointer user_data)
{
  gdk_debug_flags |= g_parse_debug_string (value,
					   (GDebugKey *) gdk_debug_keys,
					   gdk_ndebug_keys);
}

static void
gdk_arg_no_debug_cb (const char *key, const char *value, gpointer user_data)
{
  gdk_debug_flags &= ~g_parse_debug_string (value,
					    (GDebugKey *) gdk_debug_keys,
					    gdk_ndebug_keys);
}

static void
gdk_arg_name_cb (const char *key, const char *value, gpointer user_data)
{
  g_set_prgname (value);
}

static GdkArgDesc gdk_args[] = {
  { "name",         GDK_ARG_STRING,   NULL, gdk_arg_name_cb     },
#ifdef G_ENABLE_DEBUG
  { "gdk-debug",    GDK_ARG_CALLBACK, NULL, gdk_arg_debug_cb    },
  { "gdk-no-debug", GDK_ARG_CALLBACK, NULL, gdk_arg_no_debug_cb },
#endif /* G_ENABLE_DEBUG */
  { NULL }
};

Elliot Lee's avatar
Elliot Lee committed
240 241
/*
 *--------------------------------------------------------------
242
 * gdk_init_check
Elliot Lee's avatar
Elliot Lee committed
243 244 245 246 247 248 249 250 251 252
 *
 *   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
253 254
 *   be handled by the application or dismissed). If initialization
 *   fails, returns FALSE, otherwise TRUE.
Elliot Lee's avatar
Elliot Lee committed
255 256 257 258 259 260 261
 *
 * Side effects:
 *   The library is initialized.
 *
 *--------------------------------------------------------------
 */

262
gboolean
263
gdk_init_check (int    *argc,
264
		char ***argv)
Elliot Lee's avatar
Elliot Lee committed
265
{
266 267
  gchar **argv_orig = NULL;
  gint argc_orig = 0;
268 269 270
  GdkArgContext *arg_context;
  gboolean result;
  int i;
271
  
272
  if (gdk_initialized)
273
    return TRUE;
274
  
275 276 277
  if (g_thread_supported ())
    gdk_threads_mutex = g_mutex_new ();
  
278 279 280 281 282 283 284 285
  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;
286

Elliot Lee's avatar
Elliot Lee committed
287
      if (*argc > 0)
288 289
	{
	  gchar *d;
290
	  
291 292
	  d = strrchr((*argv)[0],'/');
	  if (d != NULL)
293
	    g_set_prgname (d + 1);
294
	  else
295
	    g_set_prgname ((*argv)[0]);
296
	}
Elliot Lee's avatar
Elliot Lee committed
297
    }
298

299
  
300 301 302 303 304 305 306 307 308 309 310 311 312 313 314
#ifdef G_ENABLE_DEBUG
  {
    gchar *debug_string = getenv("GDK_DEBUG");
    if (debug_string != NULL)
      gdk_debug_flags = g_parse_debug_string (debug_string,
					      (GDebugKey *) gdk_debug_keys,
					      gdk_ndebug_keys);
  }
#endif	/* G_ENABLE_DEBUG */

  arg_context = gdk_arg_context_new (NULL);
  gdk_arg_context_add_table (arg_context, gdk_args);
  gdk_arg_context_add_table (arg_context, _gdk_windowing_args);
  gdk_arg_context_parse (arg_context, argc, argv);
  gdk_arg_context_destroy (arg_context);
315
  
316 317 318 319
  GDK_NOTE (MISC, g_message ("progname: \"%s\"", g_get_prgname ()));

  result = _gdk_windowing_init_check (argc_orig, argv_orig);

320 321 322
  for (i = 0; i < argc_orig; i++)
    g_free(argv_orig[i]);
  g_free(argv_orig);
323 324 325

  if (!result)
    return FALSE;
326
  
327
  g_atexit (gdk_exit_func);
328
  
329
  gdk_events_init ();
Elliot Lee's avatar
Elliot Lee committed
330 331 332 333
  gdk_visual_init ();
  gdk_window_init ();
  gdk_image_init ();
  gdk_input_init ();
334 335
  gdk_dnd_init ();

336
#ifdef USE_XIM
337
  gdk_im_open ();
338
#endif
339
  
340
  gdk_initialized = 1;
341 342 343 344 345 346 347 348 349 350 351 352

  return TRUE;
}

void
gdk_init (int *argc, char ***argv)
{
  if (!gdk_init_check (argc, argv))
    {
      g_warning ("cannot open display: %s", gdk_get_display ());
      exit(1);
    }
Elliot Lee's avatar
Elliot Lee committed
353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374
}

/*
 *--------------------------------------------------------------
 * 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
Tor Lillqvist's avatar
Tor Lillqvist committed
375
gdk_exit (gint errorcode)
Elliot Lee's avatar
Elliot Lee committed
376
{
377 378 379
  /* 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
380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399
}

/*
 *--------------------------------------------------------------
 * 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
400
gdk_exit_func (void)
Elliot Lee's avatar
Elliot Lee committed
401
{
402
  static gboolean in_gdk_exit_func = FALSE;
403
  
404 405
  /* This is to avoid an infinite loop if a program segfaults in
     an atexit() handler (and yes, it does happen, especially if a program
406
     has trounced over memory too badly for even g_message to work) */
407 408
  if (in_gdk_exit_func == TRUE)
    return;
409
  in_gdk_exit_func = TRUE;
410
  
411
  if (gdk_initialized)
Elliot Lee's avatar
Elliot Lee committed
412
    {
413 414 415 416 417 418
#ifdef USE_XIM
      /* cleanup IC */
      gdk_ic_cleanup ();
      /* close IM */
      gdk_im_close ();
#endif
Elliot Lee's avatar
Elliot Lee committed
419 420 421
      gdk_image_exit ();
      gdk_input_exit ();
      gdk_key_repeat_restore ();
422
      
423
      gdk_initialized = 0;
Elliot Lee's avatar
Elliot Lee committed
424 425 426
    }
}

427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449
/*************************************************************
 * gdk_error_trap_push:
 *     Push an error trap. X errors will be trapped until
 *     the corresponding gdk_error_pop(), which will return
 *     the error code, if any.
 *   arguments:
 *     
 *   results:
 *************************************************************/

void
gdk_error_trap_push (void)
{
  GSList *node;
  GdkErrorTrap *trap;

  if (gdk_error_trap_free_list)
    {
      node = gdk_error_trap_free_list;
      gdk_error_trap_free_list = gdk_error_trap_free_list->next;
    }
  else
    {
450
      node = g_slist_alloc ();
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
      node->data = g_new (GdkErrorTrap, 1);
    }

  node->next = gdk_error_traps;
  gdk_error_traps = node;
  
  trap = node->data;
  trap->error_code = gdk_error_code;
  trap->error_warnings = gdk_error_warnings;

  gdk_error_code = 0;
  gdk_error_warnings = 0;
}

/*************************************************************
 * gdk_error_trap_pop:
 *     Pop an error trap added with gdk_error_push()
 *   arguments:
 *     
 *   results:
 *     0, if no error occured, otherwise the error code.
 *************************************************************/

gint
gdk_error_trap_pop (void)
{
  GSList *node;
  GdkErrorTrap *trap;
  gint result;

  g_return_val_if_fail (gdk_error_traps != NULL, 0);

  node = gdk_error_traps;
  gdk_error_traps = gdk_error_traps->next;

  node->next = gdk_error_trap_free_list;
  gdk_error_trap_free_list = node;
  
  result = gdk_error_code;
  
  trap = node->data;
  gdk_error_code = trap->error_code;
  gdk_error_warnings = trap->error_warnings;
  
  return result;
}

498
#ifndef HAVE_XCONVERTCASE
499 500 501
/* compatibility function from X11R6.3, since XConvertCase is not
 * supplied by X11R5.
 */
502 503 504 505
void
gdk_keyval_convert_case (guint symbol,
			 guint *lower,
			 guint *upper)
506
{
507 508 509
  guint xlower = symbol;
  guint xupper = symbol;

Tor Lillqvist's avatar
Tor Lillqvist committed
510
  switch (symbol >> 8)
511 512 513
    {
#if	defined (GDK_A) && defined (GDK_Ooblique)
    case 0: /* Latin 1 */
514 515 516 517 518 519 520 521 522 523 524 525
      if ((symbol >= GDK_A) && (symbol <= GDK_Z))
	xlower += (GDK_a - GDK_A);
      else if ((symbol >= GDK_a) && (symbol <= GDK_z))
	xupper -= (GDK_a - GDK_A);
      else if ((symbol >= GDK_Agrave) && (symbol <= GDK_Odiaeresis))
	xlower += (GDK_agrave - GDK_Agrave);
      else if ((symbol >= GDK_agrave) && (symbol <= GDK_odiaeresis))
	xupper -= (GDK_agrave - GDK_Agrave);
      else if ((symbol >= GDK_Ooblique) && (symbol <= GDK_Thorn))
	xlower += (GDK_oslash - GDK_Ooblique);
      else if ((symbol >= GDK_oslash) && (symbol <= GDK_thorn))
	xupper -= (GDK_oslash - GDK_Ooblique);
526 527 528 529 530 531
      break;
#endif	/* LATIN1 */
      
#if	defined (GDK_Aogonek) && defined (GDK_tcedilla)
    case 1: /* Latin 2 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551
      if (symbol == GDK_Aogonek)
	xlower = GDK_aogonek;
      else if (symbol >= GDK_Lstroke && symbol <= GDK_Sacute)
	xlower += (GDK_lstroke - GDK_Lstroke);
      else if (symbol >= GDK_Scaron && symbol <= GDK_Zacute)
	xlower += (GDK_scaron - GDK_Scaron);
      else if (symbol >= GDK_Zcaron && symbol <= GDK_Zabovedot)
	xlower += (GDK_zcaron - GDK_Zcaron);
      else if (symbol == GDK_aogonek)
	xupper = GDK_Aogonek;
      else if (symbol >= GDK_lstroke && symbol <= GDK_sacute)
	xupper -= (GDK_lstroke - GDK_Lstroke);
      else if (symbol >= GDK_scaron && symbol <= GDK_zacute)
	xupper -= (GDK_scaron - GDK_Scaron);
      else if (symbol >= GDK_zcaron && symbol <= GDK_zabovedot)
	xupper -= (GDK_zcaron - GDK_Zcaron);
      else if (symbol >= GDK_Racute && symbol <= GDK_Tcedilla)
	xlower += (GDK_racute - GDK_Racute);
      else if (symbol >= GDK_racute && symbol <= GDK_tcedilla)
	xupper -= (GDK_racute - GDK_Racute);
552 553 554 555 556 557
      break;
#endif	/* LATIN2 */
      
#if	defined (GDK_Hstroke) && defined (GDK_Cabovedot)
    case 2: /* Latin 3 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
558 559 560 561 562 563 564 565 566 567 568 569
      if (symbol >= GDK_Hstroke && symbol <= GDK_Hcircumflex)
	xlower += (GDK_hstroke - GDK_Hstroke);
      else if (symbol >= GDK_Gbreve && symbol <= GDK_Jcircumflex)
	xlower += (GDK_gbreve - GDK_Gbreve);
      else if (symbol >= GDK_hstroke && symbol <= GDK_hcircumflex)
	xupper -= (GDK_hstroke - GDK_Hstroke);
      else if (symbol >= GDK_gbreve && symbol <= GDK_jcircumflex)
	xupper -= (GDK_gbreve - GDK_Gbreve);
      else if (symbol >= GDK_Cabovedot && symbol <= GDK_Scircumflex)
	xlower += (GDK_cabovedot - GDK_Cabovedot);
      else if (symbol >= GDK_cabovedot && symbol <= GDK_scircumflex)
	xupper -= (GDK_cabovedot - GDK_Cabovedot);
570 571 572 573 574 575
      break;
#endif	/* LATIN3 */
      
#if	defined (GDK_Rcedilla) && defined (GDK_Amacron)
    case 3: /* Latin 4 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
576 577 578 579 580 581 582 583 584 585 586 587
      if (symbol >= GDK_Rcedilla && symbol <= GDK_Tslash)
	xlower += (GDK_rcedilla - GDK_Rcedilla);
      else if (symbol >= GDK_rcedilla && symbol <= GDK_tslash)
	xupper -= (GDK_rcedilla - GDK_Rcedilla);
      else if (symbol == GDK_ENG)
	xlower = GDK_eng;
      else if (symbol == GDK_eng)
	xupper = GDK_ENG;
      else if (symbol >= GDK_Amacron && symbol <= GDK_Umacron)
	xlower += (GDK_amacron - GDK_Amacron);
      else if (symbol >= GDK_amacron && symbol <= GDK_umacron)
	xupper -= (GDK_amacron - GDK_Amacron);
588 589 590 591 592 593
      break;
#endif	/* LATIN4 */
      
#if	defined (GDK_Serbian_DJE) && defined (GDK_Cyrillic_yu)
    case 6: /* Cyrillic */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
594 595 596 597 598 599 600 601
      if (symbol >= GDK_Serbian_DJE && symbol <= GDK_Serbian_DZE)
	xlower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
      else if (symbol >= GDK_Serbian_dje && symbol <= GDK_Serbian_dze)
	xupper += (GDK_Serbian_DJE - GDK_Serbian_dje);
      else if (symbol >= GDK_Cyrillic_YU && symbol <= GDK_Cyrillic_HARDSIGN)
	xlower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
      else if (symbol >= GDK_Cyrillic_yu && symbol <= GDK_Cyrillic_hardsign)
	xupper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
602 603
      break;
#endif	/* CYRILLIC */
604
      
605 606 607
#if	defined (GDK_Greek_ALPHAaccent) && defined (GDK_Greek_finalsmallsigma)
    case 7: /* Greek */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
608 609 610 611 612 613 614 615 616 617 618
      if (symbol >= GDK_Greek_ALPHAaccent && symbol <= GDK_Greek_OMEGAaccent)
	xlower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
      else if (symbol >= GDK_Greek_alphaaccent && symbol <= GDK_Greek_omegaaccent &&
	       symbol != GDK_Greek_iotaaccentdieresis &&
	       symbol != GDK_Greek_upsilonaccentdieresis)
	xupper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
      else if (symbol >= GDK_Greek_ALPHA && symbol <= GDK_Greek_OMEGA)
	xlower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
      else if (symbol >= GDK_Greek_alpha && symbol <= GDK_Greek_omega &&
	       symbol != GDK_Greek_finalsmallsigma)
	xupper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
619 620 621 622
      break;
#endif	/* GREEK */
    }

623 624 625 626
  if (lower)
    *lower = xlower;
  if (upper)
    *upper = xupper;
Tim Janik's avatar
Tim Janik committed
627
}
628
#endif
Tim Janik's avatar
Tim Janik committed
629 630

guint
631
gdk_keyval_to_upper (guint keyval)
Tim Janik's avatar
Tim Janik committed
632
{
633
  guint result;
634
  
635
  gdk_keyval_convert_case (keyval, NULL, &result);
Tim Janik's avatar
Tim Janik committed
636

637
  return result;
Tim Janik's avatar
Tim Janik committed
638 639 640
}

guint
641
gdk_keyval_to_lower (guint keyval)
Tim Janik's avatar
Tim Janik committed
642
{
643 644 645 646 647
  guint result;
  
  gdk_keyval_convert_case (keyval, &result, NULL);

  return result;
Tim Janik's avatar
Tim Janik committed
648 649 650
}

gboolean
651
gdk_keyval_is_upper (guint keyval)
Tim Janik's avatar
Tim Janik committed
652 653 654
{
  if (keyval)
    {
655
      guint upper_val = 0;
656
      
657
      gdk_keyval_convert_case (keyval, NULL, &upper_val);
Tim Janik's avatar
Tim Janik committed
658 659
      return upper_val == keyval;
    }
660
  return FALSE;
Tim Janik's avatar
Tim Janik committed
661 662 663
}

gboolean
664
gdk_keyval_is_lower (guint keyval)
Tim Janik's avatar
Tim Janik committed
665 666 667
{
  if (keyval)
    {
668
      guint lower_val = 0;
669
      
670
      gdk_keyval_convert_case (keyval, &lower_val, NULL);
Tim Janik's avatar
Tim Janik committed
671 672
      return lower_val == keyval;
    }
673
  return FALSE;
Tim Janik's avatar
Tim Janik committed
674
}
675 676 677 678 679 680 681 682 683 684 685 686 687

void
gdk_threads_enter ()
{
  GDK_THREADS_ENTER ();
}

void
gdk_threads_leave ()
{
  GDK_THREADS_LEAVE ();
}