gdk.c 17.1 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 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
Started  
Owen Taylor committed
32
#include "gdk.h"
33
#include "gdkinternals.h"
Elliot Lee's avatar
Elliot Lee committed
34

35 36 37 38
#ifndef HAVE_XCONVERTCASE
#include "gdkkeysyms.h"
#endif

Elliot Lee's avatar
Elliot Lee committed
39
typedef struct _GdkPredicate  GdkPredicate;
40
typedef struct _GdkErrorTrap  GdkErrorTrap;
Elliot Lee's avatar
Elliot Lee committed
41 42 43 44 45 46 47

struct _GdkPredicate
{
  GdkEventFunc func;
  gpointer data;
};

48 49 50 51 52 53
struct _GdkErrorTrap
{
  gint error_warnings;
  gint error_code;
};

Elliot Lee's avatar
Elliot Lee committed
54 55 56
/* 
 * Private function declarations
 */
57
static void	    gdk_exit_func		 (void);
Elliot Lee's avatar
Elliot Lee committed
58

59 60 61 62
GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
					 GdkEvent  *event,
					 gpointer   data);

Elliot Lee's avatar
Elliot Lee committed
63 64
/* Private variable declarations
 */
65
static int gdk_initialized = 0;			    /* 1 if the library is initialized,
Elliot Lee's avatar
Elliot Lee committed
66 67 68
						     * 0 otherwise.
						     */

69 70 71
static GSList *gdk_error_traps = NULL;               /* List of error traps */
static GSList *gdk_error_trap_free_list = NULL;      /* Free list */

72
#ifdef G_ENABLE_DEBUG
73
static const GDebugKey gdk_debug_keys[] = {
74 75 76
  {"events",	    GDK_DEBUG_EVENTS},
  {"misc",	    GDK_DEBUG_MISC},
  {"dnd",	    GDK_DEBUG_DND},
77
  {"color-context", GDK_DEBUG_COLOR_CONTEXT},
78
  {"xim",	    GDK_DEBUG_XIM}
79
};
80 81 82

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

83
#endif /* G_ENABLE_DEBUG */
Elliot Lee's avatar
Elliot Lee committed
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
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:
175
				;
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194
			      }

			    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:
195
	  ;
196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245
	}
	  
      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
246 247
/*
 *--------------------------------------------------------------
248
 * gdk_init_check
Elliot Lee's avatar
Elliot Lee committed
249 250 251 252 253 254 255 256 257 258
 *
 *   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
259 260
 *   be handled by the application or dismissed). If initialization
 *   fails, returns FALSE, otherwise TRUE.
Elliot Lee's avatar
Elliot Lee committed
261 262 263 264 265 266 267
 *
 * Side effects:
 *   The library is initialized.
 *
 *--------------------------------------------------------------
 */

268
gboolean
269
gdk_init_check (int    *argc,
270
		char ***argv)
Elliot Lee's avatar
Elliot Lee committed
271
{
272 273
  gchar **argv_orig = NULL;
  gint argc_orig = 0;
274 275 276
  GdkArgContext *arg_context;
  gboolean result;
  int i;
277
  
278
  if (gdk_initialized)
279
    return TRUE;
280

281 282 283
  if (g_thread_supported ())
    gdk_threads_mutex = g_mutex_new ();
  
284 285 286 287 288 289 290 291
  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;
292

Elliot Lee's avatar
Elliot Lee committed
293
      if (*argc > 0)
294 295
	{
	  gchar *d;
296
	  
297
	  d = strrchr((*argv)[0], G_DIR_SEPARATOR);
298
	  if (d != NULL)
299
	    g_set_prgname (d + 1);
300
	  else
301
	    g_set_prgname ((*argv)[0]);
302
	}
Elliot Lee's avatar
Elliot Lee committed
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 */
315
  
316 317 318 319 320
  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);
321
  
322 323
  GDK_NOTE (MISC, g_message ("progname: \"%s\"", g_get_prgname ()));

324 325
  g_type_init ();
  
326 327
  result = _gdk_windowing_init_check (argc_orig, argv_orig);

328 329 330
  for (i = 0; i < argc_orig; i++)
    g_free(argv_orig[i]);
  g_free(argv_orig);
331 332 333

  if (!result)
    return FALSE;
334
  
Tim Janik's avatar
Tim Janik committed
335
  g_atexit (gdk_exit_func);
336
  
337
  gdk_events_init ();
Elliot Lee's avatar
Elliot Lee committed
338
  gdk_visual_init ();
339 340
  _gdk_windowing_window_init ();
  _gdk_windowing_image_init ();
Elliot Lee's avatar
Elliot Lee committed
341
  gdk_input_init ();
342 343
  gdk_dnd_init ();

344
#ifdef USE_XIM
345
  gdk_im_open ();
346
#endif
347
  
348
  gdk_initialized = 1;
349 350 351 352 353 354 355 356 357 358 359 360

  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
361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382
}

/*
 *--------------------------------------------------------------
 * 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
383
gdk_exit (gint errorcode)
Elliot Lee's avatar
Elliot Lee committed
384
{
385 386 387
  /* 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
388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
}

/*
 *--------------------------------------------------------------
 * 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
408
gdk_exit_func (void)
Elliot Lee's avatar
Elliot Lee committed
409
{
410
  static gboolean in_gdk_exit_func = FALSE;
411
  
412 413
  /* This is to avoid an infinite loop if a program segfaults in
     an atexit() handler (and yes, it does happen, especially if a program
414
     has trounced over memory too badly for even g_message to work) */
415 416
  if (in_gdk_exit_func == TRUE)
    return;
417
  in_gdk_exit_func = TRUE;
418
  
419
  if (gdk_initialized)
Elliot Lee's avatar
Elliot Lee committed
420
    {
421 422 423 424 425 426
#ifdef USE_XIM
      /* cleanup IC */
      gdk_ic_cleanup ();
      /* close IM */
      gdk_im_close ();
#endif
Elliot Lee's avatar
Elliot Lee committed
427 428 429
      gdk_image_exit ();
      gdk_input_exit ();
      gdk_key_repeat_restore ();
430 431

      gdk_windowing_exit ();
432
      
433
      gdk_initialized = 0;
Elliot Lee's avatar
Elliot Lee committed
434 435 436
    }
}

437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459
/*************************************************************
 * 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
    {
460
      node = g_slist_alloc ();
461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507
      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;
}

508
#ifndef HAVE_XCONVERTCASE
509 510 511
/* compatibility function from X11R6.3, since XConvertCase is not
 * supplied by X11R5.
 */
512 513 514 515
void
gdk_keyval_convert_case (guint symbol,
			 guint *lower,
			 guint *upper)
516
{
517 518 519
  guint xlower = symbol;
  guint xupper = symbol;

Tor Lillqvist's avatar
Tor Lillqvist committed
520
  switch (symbol >> 8)
521 522 523
    {
#if	defined (GDK_A) && defined (GDK_Ooblique)
    case 0: /* Latin 1 */
524 525 526 527 528 529 530 531 532 533 534 535
      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);
536 537 538 539 540 541
      break;
#endif	/* LATIN1 */
      
#if	defined (GDK_Aogonek) && defined (GDK_tcedilla)
    case 1: /* Latin 2 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561
      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);
562 563 564 565 566 567
      break;
#endif	/* LATIN2 */
      
#if	defined (GDK_Hstroke) && defined (GDK_Cabovedot)
    case 2: /* Latin 3 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
568 569 570 571 572 573 574 575 576 577 578 579
      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);
580 581 582 583 584 585
      break;
#endif	/* LATIN3 */
      
#if	defined (GDK_Rcedilla) && defined (GDK_Amacron)
    case 3: /* Latin 4 */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
586 587 588 589 590 591 592 593 594 595 596 597
      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);
598 599 600 601 602 603
      break;
#endif	/* LATIN4 */
      
#if	defined (GDK_Serbian_DJE) && defined (GDK_Cyrillic_yu)
    case 6: /* Cyrillic */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
604 605 606 607 608 609 610 611
      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);
612 613
      break;
#endif	/* CYRILLIC */
614
      
615 616 617
#if	defined (GDK_Greek_ALPHAaccent) && defined (GDK_Greek_finalsmallsigma)
    case 7: /* Greek */
      /* Assume the KeySym is a legal value (ignore discontinuities) */
618 619 620 621 622 623 624 625 626 627 628
      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);
629 630 631 632
      break;
#endif	/* GREEK */
    }

633 634 635 636
  if (lower)
    *lower = xlower;
  if (upper)
    *upper = xupper;
Tim Janik's avatar
Tim Janik committed
637
}
638
#endif
Tim Janik's avatar
Tim Janik committed
639 640

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

647
  return result;
Tim Janik's avatar
Tim Janik committed
648 649 650
}

guint
651
gdk_keyval_to_lower (guint keyval)
Tim Janik's avatar
Tim Janik committed
652
{
653 654 655 656 657
  guint result;
  
  gdk_keyval_convert_case (keyval, &result, NULL);

  return result;
Tim Janik's avatar
Tim Janik committed
658 659 660
}

gboolean
661
gdk_keyval_is_upper (guint keyval)
Tim Janik's avatar
Tim Janik committed
662 663 664
{
  if (keyval)
    {
665
      guint upper_val = 0;
666
      
667
      gdk_keyval_convert_case (keyval, NULL, &upper_val);
Tim Janik's avatar
Tim Janik committed
668 669
      return upper_val == keyval;
    }
670
  return FALSE;
Tim Janik's avatar
Tim Janik committed
671 672 673
}

gboolean
674
gdk_keyval_is_lower (guint keyval)
Tim Janik's avatar
Tim Janik committed
675 676 677
{
  if (keyval)
    {
678
      guint lower_val = 0;
679
      
680
      gdk_keyval_convert_case (keyval, &lower_val, NULL);
Tim Janik's avatar
Tim Janik committed
681 682
      return lower_val == keyval;
    }
683
  return FALSE;
Tim Janik's avatar
Tim Janik committed
684
}
685 686 687 688 689 690 691 692 693 694 695 696 697

void
gdk_threads_enter ()
{
  GDK_THREADS_ENTER ();
}

void
gdk_threads_leave ()
{
  GDK_THREADS_LEAVE ();
}