1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
27 #ifdef GDK_WINDOWING_X11
28 #include <X11/Xlocale.h> /* so we get the right setlocale */
33 #ifdef HAVE_BIND_TEXTDOMAIN_CODESET
42 #include "gtkcompat.h"
45 #include "gtkselection.h"
46 #include "gtksignal.h"
47 #include "gtkwidget.h"
48 #include "gtkwindow.h"
49 #include "gtkprivate.h"
50 #include "gdk/gdki18n.h"
55 /* Private type definitions
57 typedef struct _GtkInitFunction GtkInitFunction;
58 typedef struct _GtkQuitFunction GtkQuitFunction;
59 typedef struct _GtkClosure GtkClosure;
60 typedef struct _GtkKeySnooperData GtkKeySnooperData;
62 struct _GtkInitFunction
68 struct _GtkQuitFunction
72 GtkCallbackMarshal marshal;
75 GtkDestroyNotify destroy;
80 GtkCallbackMarshal marshal;
82 GtkDestroyNotify destroy;
85 struct _GtkKeySnooperData
92 static void gtk_exit_func (void);
93 static gint gtk_quit_invoke_function (GtkQuitFunction *quitf);
94 static void gtk_quit_destroy (GtkQuitFunction *quitf);
95 static gint gtk_invoke_key_snoopers (GtkWidget *grab_widget,
98 static void gtk_destroy_closure (gpointer data);
99 static gboolean gtk_invoke_idle_timeout (gpointer data);
100 static void gtk_invoke_input (gpointer data,
102 GdkInputCondition condition);
105 static void gtk_error (gchar *str);
106 static void gtk_warning (gchar *str);
107 static void gtk_message (gchar *str);
108 static void gtk_print (gchar *str);
111 const guint gtk_major_version = GTK_MAJOR_VERSION;
112 const guint gtk_minor_version = GTK_MINOR_VERSION;
113 const guint gtk_micro_version = GTK_MICRO_VERSION;
114 const guint gtk_binary_age = GTK_BINARY_AGE;
115 const guint gtk_interface_age = GTK_INTERFACE_AGE;
117 static guint gtk_main_loop_level = 0;
118 static gint gtk_initialized = FALSE;
119 static GList *current_events = NULL;
121 static GSList *main_loops = NULL; /* stack of currently executing main loops */
123 static GSList *grabs = NULL; /* A stack of unique grabs. The grabbing
124 * widget is the first one on the list.
126 static GList *init_functions = NULL; /* A list of init functions.
128 static GList *quit_functions = NULL; /* A list of quit functions.
130 static GMemChunk *quit_mem_chunk = NULL;
132 static GSList *key_snoopers = NULL;
134 static GdkVisual *gtk_visual; /* The visual to be used in creating new
137 static GdkColormap *gtk_colormap; /* The colormap to be used in creating new
141 guint gtk_debug_flags = 0; /* Global GTK debug flag */
143 #ifdef G_ENABLE_DEBUG
144 static const GDebugKey gtk_debug_keys[] = {
145 {"objects", GTK_DEBUG_OBJECTS},
146 {"misc", GTK_DEBUG_MISC},
147 {"signals", GTK_DEBUG_SIGNALS},
148 {"dnd", GTK_DEBUG_DND},
149 {"plugsocket", GTK_DEBUG_PLUGSOCKET},
150 {"text", GTK_DEBUG_TEXT},
151 {"tree", GTK_DEBUG_TREE}
154 static const guint gtk_ndebug_keys = sizeof (gtk_debug_keys) / sizeof (GDebugKey);
156 #endif /* G_ENABLE_DEBUG */
159 gtk_check_version (guint required_major,
160 guint required_minor,
161 guint required_micro)
163 if (required_major > GTK_MAJOR_VERSION)
164 return "Gtk+ version too old (major mismatch)";
165 if (required_major < GTK_MAJOR_VERSION)
166 return "Gtk+ version too new (major mismatch)";
167 if (required_minor > GTK_MINOR_VERSION)
168 return "Gtk+ version too old (minor mismatch)";
169 if (required_minor < GTK_MINOR_VERSION)
170 return "Gtk+ version too new (minor mismatch)";
171 if (required_micro < GTK_MICRO_VERSION - GTK_BINARY_AGE)
172 return "Gtk+ version too new (micro mismatch)";
173 if (required_micro > GTK_MICRO_VERSION)
174 return "Gtk+ version too old (micro mismatch)";
179 static gchar *add_dll_suffix(gchar *module_name)
181 gchar *suffix = strrchr(module_name, '.');
183 if (!suffix || stricmp(suffix, ".dll"))
185 gchar *old = module_name;
187 module_name = g_strconcat (module_name, ".dll", NULL);
190 return (module_name);
194 #undef gtk_init_check
197 gtk_init_check (int *argc,
200 GSList *gtk_modules = NULL;
202 gchar *env_string = NULL;
208 g_set_error_handler (gtk_error);
209 g_set_warning_handler (gtk_warning);
210 g_set_message_handler (gtk_message);
211 g_set_print_handler (gtk_print);
214 /* Initialize "gdk". We pass along the 'argc' and 'argv'
215 * parameters as they contain information that GDK uses
217 if (!gdk_init_check (argc, argv))
220 gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
222 #ifdef G_ENABLE_DEBUG
223 env_string = getenv ("GTK_DEBUG");
224 if (env_string != NULL)
226 gtk_debug_flags = g_parse_debug_string (env_string,
231 #endif /* G_ENABLE_DEBUG */
233 env_string = getenv ("GTK_MODULES");
236 gchar **modules, **as;
239 modules = g_strsplit (env_string, G_SEARCHPATH_SEPARATOR_S, -1);
241 modules = g_strsplit (env_string, ";", -1);
243 for (as = modules; *as; as++)
246 gtk_modules = g_slist_prepend (gtk_modules, *as);
258 for (i = 1; i < *argc;)
260 if (strcmp ("--gtk-module", (*argv)[i]) == 0 ||
261 strncmp ("--gtk-module=", (*argv)[i], 13) == 0)
263 gchar *module_name = (*argv)[i] + 12;
265 if (*module_name == '=')
267 else if (i + 1 < *argc)
271 module_name = (*argv)[i];
275 if (module_name && *module_name)
276 gtk_modules = g_slist_prepend (gtk_modules, g_strdup (module_name));
278 else if (strcmp ("--g-fatal-warnings", (*argv)[i]) == 0)
280 GLogLevelFlags fatal_mask;
282 fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
283 fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
284 g_log_set_always_fatal (fatal_mask);
287 #ifdef G_ENABLE_DEBUG
288 else if ((strcmp ("--gtk-debug", (*argv)[i]) == 0) ||
289 (strncmp ("--gtk-debug=", (*argv)[i], 12) == 0))
291 gchar *equal_pos = strchr ((*argv)[i], '=');
293 if (equal_pos != NULL)
295 gtk_debug_flags |= g_parse_debug_string (equal_pos+1,
299 else if ((i + 1) < *argc && (*argv)[i + 1])
301 gtk_debug_flags |= g_parse_debug_string ((*argv)[i+1],
309 else if ((strcmp ("--gtk-no-debug", (*argv)[i]) == 0) ||
310 (strncmp ("--gtk-no-debug=", (*argv)[i], 15) == 0))
312 gchar *equal_pos = strchr ((*argv)[i], '=');
314 if (equal_pos != NULL)
316 gtk_debug_flags &= ~g_parse_debug_string (equal_pos+1,
320 else if ((i + 1) < *argc && (*argv)[i + 1])
322 gtk_debug_flags &= ~g_parse_debug_string ((*argv)[i+1],
330 #endif /* G_ENABLE_DEBUG */
334 for (i = 1; i < *argc; i++)
336 for (k = i; k < *argc; k++)
337 if ((*argv)[k] != NULL)
343 for (j = i + k; j < *argc; j++)
344 (*argv)[j-k] = (*argv)[j];
350 /* load gtk modules */
351 gtk_modules = g_slist_reverse (gtk_modules);
352 for (slist = gtk_modules; slist; slist = slist->next)
355 GModule *module = NULL;
356 GtkModuleInitFunc modinit_func = NULL;
358 module_name = slist->data;
361 if (!g_path_is_absolute (module_name))
363 gchar *old = module_name;
365 module_name = g_module_build_path (NULL, module_name);
369 module_name = add_dll_suffix(module_name);
371 if (g_module_supported ())
373 module = g_module_open (module_name, G_MODULE_BIND_LAZY);
375 g_module_symbol (module, "gtk_module_init", (gpointer*) &modinit_func) &&
378 if (!g_slist_find (gtk_modules, modinit_func))
380 g_module_make_resident (module);
381 slist->data = modinit_func;
385 g_module_close (module);
392 g_message ("Failed to load module \"%s\": %s",
393 module ? g_module_name (module) : module_name,
396 g_module_close (module);
398 g_free (module_name);
403 bindtextdomain(GETTEXT_PACKAGE, GTK_LOCALEDIR);
404 # ifdef HAVE_BIND_TEXTDOMAIN_CODESET
405 bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
407 # else /* !G_OS_WIN32 */
409 /* GTk+ locale dir is %WinDir%\gtk+\locale */
410 bindtextdomain (GETTEXT_PACKAGE,
411 g_strconcat (gtk_win32_get_installation_directory (),
420 /* Translate to default:RTL if you want your widgets
421 * to be RTL, otherwise translate to default:LTR.
422 * Do *not* translate it to "predefinito:LTR", if it
423 * it isn't default:LTR or default:RTL it will not work
425 char *e = _("default:LTR");
426 if (strcmp (e, "default:RTL")==0) {
427 gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
428 } else if (strcmp (e, "default:LTR")) {
429 g_warning ("Whoever translated default:LTR did so wrongly.\n");
433 /* Initialize the default visual and colormap to be
434 * used in creating widgets. (We want to use the system
435 * defaults so as to be nice to the colormap).
437 gtk_visual = gdk_visual_get_system ();
438 gtk_colormap = gdk_colormap_get_system ();
445 /* Register an exit function to make sure we are able to cleanup.
447 g_atexit (gtk_exit_func);
449 /* Set the 'initialized' flag.
451 gtk_initialized = TRUE;
453 /* initialize gtk modules
455 for (slist = gtk_modules; slist; slist = slist->next)
459 GtkModuleInitFunc modinit;
461 modinit = slist->data;
462 modinit (argc, argv);
465 g_slist_free (gtk_modules);
468 /* No use warning on Win32, there aren't any non-devel versions anyhow... */
469 g_message ("" "YOU ARE USING THE DEVEL BRANCH 1.3.x OF GTK+ WHICH IS CURRENTLY\n"
470 " UNDER HEAVY DEVELOPMENT AND FREQUENTLY INTRODUCES INSTABILITIES.\n"
471 " if you don't know why you are getting this, you probably want to\n"
472 " use the stable branch which can be retrived from\n"
473 " ftp://ftp.gtk.org/pub/gtk/v1.2/ or via CVS with\n"
474 " cvs checkout -r glib-1-2 glib; cvs checkout -r gtk-1-2 gtk+");
483 gtk_init (int *argc, char ***argv)
485 if (!gtk_init_check (argc, argv))
487 g_warning ("cannot open display: %s", gdk_get_display ());
495 check_sizeof_GtkWindow (size_t sizeof_GtkWindow)
497 if (sizeof_GtkWindow != sizeof (GtkWindow))
498 g_error ("Incompatible build!\n"
499 "The code using GTK+ thinks GtkWindow is of different\n"
500 "size than it actually is in this build of GTK+.\n"
501 "On Windows, this probably means that you have compiled\n"
502 "your code with gcc without the -fnative-struct switch.");
505 /* These two functions might get more checks added later, thus pass
506 * in the number of extra args.
509 gtk_init_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow)
511 check_sizeof_GtkWindow (sizeof_GtkWindow);
512 gtk_init (argc, argv);
516 gtk_init_check_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow)
518 check_sizeof_GtkWindow (sizeof_GtkWindow);
519 return gtk_init_check (argc, argv);
525 gtk_exit (gint errorcode)
527 /* Only if "gtk" has been initialized should we de-initialize.
529 /* de-initialisation is done by the gtk_exit_funct(),
530 * no need to do this here (Alex J.)
536 gtk_set_locale (void)
538 return gdk_set_locale ();
542 gtk_get_default_language (void)
547 lang = g_strdup (setlocale (LC_CTYPE, NULL));
548 p = strchr (lang, '.');
551 p = strchr (lang, '@');
563 GtkInitFunction *init;
566 gtk_main_loop_level++;
568 loop = g_main_new (TRUE);
569 main_loops = g_slist_prepend (main_loops, loop);
571 tmp_list = functions = init_functions;
572 init_functions = NULL;
576 init = tmp_list->data;
577 tmp_list = tmp_list->next;
579 (* init->function) (init->data);
582 g_list_free (functions);
584 if (g_main_is_running (main_loops->data))
586 GDK_THREADS_LEAVE ();
588 GDK_THREADS_ENTER ();
594 GList *reinvoke_list = NULL;
595 GtkQuitFunction *quitf;
597 while (quit_functions)
599 quitf = quit_functions->data;
601 tmp_list = quit_functions;
602 quit_functions = g_list_remove_link (quit_functions, quit_functions);
603 g_list_free_1 (tmp_list);
605 if ((quitf->main_level && quitf->main_level != gtk_main_loop_level) ||
606 gtk_quit_invoke_function (quitf))
608 reinvoke_list = g_list_prepend (reinvoke_list, quitf);
612 gtk_quit_destroy (quitf);
619 work = g_list_last (reinvoke_list);
621 quit_functions->prev = work;
622 work->next = quit_functions;
623 quit_functions = work;
629 main_loops = g_slist_remove (main_loops, loop);
631 g_main_destroy (loop);
633 gtk_main_loop_level--;
637 gtk_main_level (void)
639 return gtk_main_loop_level;
645 g_return_if_fail (main_loops != NULL);
647 g_main_quit (main_loops->data);
651 gtk_events_pending (void)
655 GDK_THREADS_LEAVE ();
656 result = g_main_pending();
657 GDK_THREADS_ENTER ();
663 gtk_main_iteration (void)
665 GDK_THREADS_LEAVE ();
666 g_main_iteration (TRUE);
667 GDK_THREADS_ENTER ();
670 return !g_main_is_running (main_loops->data);
676 gtk_main_iteration_do (gboolean blocking)
678 GDK_THREADS_LEAVE ();
679 g_main_iteration (blocking);
680 GDK_THREADS_ENTER ();
683 return !g_main_is_running (main_loops->data);
689 gtk_main_do_event (GdkEvent *event)
691 GtkWidget *event_widget;
692 GtkWidget *grab_widget;
693 GdkEvent *next_event;
696 /* If there are any events pending then get the next one.
698 next_event = gdk_event_peek ();
700 /* Try to compress enter/leave notify events. These event
701 * pairs occur when the mouse is dragged quickly across
702 * a window with many buttons (or through a menu). Instead
703 * of highlighting and de-highlighting each widget that
704 * is crossed it is better to simply de-highlight the widget
705 * which contained the mouse initially and highlight the
706 * widget which ends up containing the mouse.
709 if (((event->type == GDK_ENTER_NOTIFY) ||
710 (event->type == GDK_LEAVE_NOTIFY)) &&
711 ((next_event->type == GDK_ENTER_NOTIFY) ||
712 (next_event->type == GDK_LEAVE_NOTIFY)) &&
713 (next_event->type != event->type) &&
714 (next_event->any.window == event->any.window))
716 /* Throw both the peeked copy and the queued copy away
718 gdk_event_free (next_event);
719 next_event = gdk_event_get ();
720 gdk_event_free (next_event);
726 gdk_event_free (next_event);
728 /* Find the widget which got the event. We store the widget
729 * in the user_data field of GdkWindow's.
730 * Ignore the event if we don't have a widget for it, except
731 * for GDK_PROPERTY_NOTIFY events which are handled specialy.
732 * Though this happens rarely, bogus events can occour
733 * for e.g. destroyed GdkWindows.
735 event_widget = gtk_get_event_widget (event);
738 /* To handle selection INCR transactions, we select
739 * PropertyNotify events on the requestor window and create
740 * a corresponding (fake) GdkWindow so that events get
741 * here. There won't be a widget though, so we have to handle
744 if (event->type == GDK_PROPERTY_NOTIFY)
745 gtk_selection_incr_event (event->any.window,
751 /* Push the event onto a stack of current events for
752 * gtk_current_event_get().
754 current_events = g_list_prepend (current_events, event);
756 /* If there is a grab in effect...
760 grab_widget = grabs->data;
762 /* If the grab widget is an ancestor of the event widget
763 * then we send the event to the original event widget.
764 * This is the key to implementing modality.
766 if (GTK_WIDGET_IS_SENSITIVE (event_widget) &&
767 gtk_widget_is_ancestor (event_widget, grab_widget))
768 grab_widget = event_widget;
772 grab_widget = event_widget;
775 /* Not all events get sent to the grabbing widget.
776 * The delete, destroy, expose, focus change and resize
777 * events still get sent to the event widget because
778 * 1) these events have no meaning for the grabbing widget
779 * and 2) redirecting these events to the grabbing widget
780 * could cause the display to be messed up.
782 * Drag events are also not redirected, since it isn't
783 * clear what the semantics of that would be.
791 gtk_widget_ref (event_widget);
792 if ((!grabs || gtk_widget_get_toplevel (grabs->data) == event_widget) &&
793 !gtk_widget_event (event_widget, event))
794 gtk_widget_destroy (event_widget);
795 gtk_widget_unref (event_widget);
799 /* Unexpected GDK_DESTROY from the outside, ignore for
800 * child windows, handle like a GDK_DELETE for toplevels
802 if (!event_widget->parent)
804 gtk_widget_ref (event_widget);
805 if (!gtk_widget_event (event_widget, event) &&
806 !GTK_OBJECT_DESTROYED (event_widget))
807 gtk_widget_destroy (event_widget);
808 gtk_widget_unref (event_widget);
813 if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
814 gdk_window_begin_paint_rect (event->any.window, &event->expose.area);
816 gtk_widget_event (event_widget, event);
818 if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
819 gdk_window_end_paint (event->any.window);
822 case GDK_PROPERTY_NOTIFY:
824 case GDK_FOCUS_CHANGE:
828 case GDK_SELECTION_CLEAR:
829 case GDK_SELECTION_REQUEST:
830 case GDK_SELECTION_NOTIFY:
831 case GDK_CLIENT_EVENT:
832 case GDK_VISIBILITY_NOTIFY:
833 gtk_widget_event (event_widget, event);
837 case GDK_BUTTON_PRESS:
838 case GDK_2BUTTON_PRESS:
839 case GDK_3BUTTON_PRESS:
840 gtk_propagate_event (grab_widget, event);
844 case GDK_KEY_RELEASE:
847 if (gtk_invoke_key_snoopers (grab_widget, event))
850 /* else fall through */
851 case GDK_MOTION_NOTIFY:
852 case GDK_BUTTON_RELEASE:
853 case GDK_PROXIMITY_IN:
854 case GDK_PROXIMITY_OUT:
855 gtk_propagate_event (grab_widget, event);
858 case GDK_ENTER_NOTIFY:
859 if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
861 gtk_widget_event (grab_widget, event);
862 if (event_widget == grab_widget)
863 GTK_PRIVATE_SET_FLAG (event_widget, GTK_LEAVE_PENDING);
867 case GDK_LEAVE_NOTIFY:
868 if (GTK_WIDGET_LEAVE_PENDING (event_widget))
870 GTK_PRIVATE_UNSET_FLAG (event_widget, GTK_LEAVE_PENDING);
871 gtk_widget_event (event_widget, event);
873 else if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
874 gtk_widget_event (grab_widget, event);
877 case GDK_DRAG_STATUS:
878 case GDK_DROP_FINISHED:
879 gtk_drag_source_handle_event (event_widget, event);
883 case GDK_DRAG_MOTION:
885 gtk_drag_dest_handle_event (event_widget, event);
889 tmp_list = current_events;
890 current_events = g_list_remove_link (current_events, tmp_list);
891 g_list_free_1 (tmp_list);
907 gtk_grab_add (GtkWidget *widget)
909 g_return_if_fail (widget != NULL);
911 if (!GTK_WIDGET_HAS_GRAB (widget))
913 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_GRAB);
915 grabs = g_slist_prepend (grabs, widget);
916 gtk_widget_ref (widget);
921 gtk_grab_get_current (void)
924 return GTK_WIDGET (grabs->data);
929 gtk_grab_remove (GtkWidget *widget)
931 g_return_if_fail (widget != NULL);
933 if (GTK_WIDGET_HAS_GRAB (widget))
935 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_GRAB);
937 grabs = g_slist_remove (grabs, widget);
938 gtk_widget_unref (widget);
943 gtk_init_add (GtkFunction function,
946 GtkInitFunction *init;
948 init = g_new (GtkInitFunction, 1);
949 init->function = function;
952 init_functions = g_list_prepend (init_functions, init);
956 gtk_key_snooper_install (GtkKeySnoopFunc snooper,
959 GtkKeySnooperData *data;
960 static guint snooper_id = 1;
962 g_return_val_if_fail (snooper != NULL, 0);
964 data = g_new (GtkKeySnooperData, 1);
965 data->func = snooper;
966 data->func_data = func_data;
967 data->id = snooper_id++;
968 key_snoopers = g_slist_prepend (key_snoopers, data);
974 gtk_key_snooper_remove (guint snooper_id)
976 GtkKeySnooperData *data = NULL;
979 slist = key_snoopers;
983 if (data->id == snooper_id)
990 key_snoopers = g_slist_remove (key_snoopers, data);
994 gtk_invoke_key_snoopers (GtkWidget *grab_widget,
998 gint return_val = FALSE;
1000 slist = key_snoopers;
1001 while (slist && !return_val)
1003 GtkKeySnooperData *data;
1006 slist = slist->next;
1007 return_val = (*data->func) (grab_widget, (GdkEventKey*) event, data->func_data);
1014 gtk_quit_add_full (guint main_level,
1015 GtkFunction function,
1016 GtkCallbackMarshal marshal,
1018 GtkDestroyNotify destroy)
1020 static guint quit_id = 1;
1021 GtkQuitFunction *quitf;
1023 g_return_val_if_fail ((function != NULL) || (marshal != NULL), 0);
1025 if (!quit_mem_chunk)
1026 quit_mem_chunk = g_mem_chunk_new ("quit mem chunk", sizeof (GtkQuitFunction),
1027 512, G_ALLOC_AND_FREE);
1029 quitf = g_chunk_new (GtkQuitFunction, quit_mem_chunk);
1031 quitf->id = quit_id++;
1032 quitf->main_level = main_level;
1033 quitf->function = function;
1034 quitf->marshal = marshal;
1036 quitf->destroy = destroy;
1038 quit_functions = g_list_prepend (quit_functions, quitf);
1044 gtk_quit_destroy (GtkQuitFunction *quitf)
1047 quitf->destroy (quitf->data);
1048 g_mem_chunk_free (quit_mem_chunk, quitf);
1052 gtk_quit_destructor (GtkObject **object_p)
1055 gtk_object_destroy (*object_p);
1062 gtk_quit_add_destroy (guint main_level,
1065 GtkObject **object_p;
1067 g_return_if_fail (main_level > 0);
1068 g_return_if_fail (object != NULL);
1069 g_return_if_fail (GTK_IS_OBJECT (object));
1071 object_p = g_new (GtkObject*, 1);
1073 gtk_signal_connect (object,
1075 GTK_SIGNAL_FUNC (gtk_widget_destroyed),
1077 gtk_quit_add (main_level, (GtkFunction) gtk_quit_destructor, object_p);
1081 gtk_quit_add (guint main_level,
1082 GtkFunction function,
1085 return gtk_quit_add_full (main_level, function, NULL, data, NULL);
1089 gtk_quit_remove (guint id)
1091 GtkQuitFunction *quitf;
1094 tmp_list = quit_functions;
1097 quitf = tmp_list->data;
1099 if (quitf->id == id)
1101 quit_functions = g_list_remove_link (quit_functions, tmp_list);
1102 g_list_free (tmp_list);
1103 gtk_quit_destroy (quitf);
1108 tmp_list = tmp_list->next;
1113 gtk_quit_remove_by_data (gpointer data)
1115 GtkQuitFunction *quitf;
1118 tmp_list = quit_functions;
1121 quitf = tmp_list->data;
1123 if (quitf->data == data)
1125 quit_functions = g_list_remove_link (quit_functions, tmp_list);
1126 g_list_free (tmp_list);
1127 gtk_quit_destroy (quitf);
1132 tmp_list = tmp_list->next;
1137 gtk_timeout_add_full (guint32 interval,
1138 GtkFunction function,
1139 GtkCallbackMarshal marshal,
1141 GtkDestroyNotify destroy)
1145 GtkClosure *closure;
1147 closure = g_new (GtkClosure, 1);
1148 closure->marshal = marshal;
1149 closure->data = data;
1150 closure->destroy = destroy;
1152 return g_timeout_add_full (0, interval,
1153 gtk_invoke_idle_timeout,
1155 gtk_destroy_closure);
1158 return g_timeout_add_full (0, interval, function, data, destroy);
1162 gtk_timeout_add (guint32 interval,
1163 GtkFunction function,
1166 return g_timeout_add_full (0, interval, function, data, NULL);
1170 gtk_timeout_remove (guint tag)
1172 g_source_remove (tag);
1176 gtk_idle_add_full (gint priority,
1177 GtkFunction function,
1178 GtkCallbackMarshal marshal,
1180 GtkDestroyNotify destroy)
1184 GtkClosure *closure;
1186 closure = g_new (GtkClosure, 1);
1187 closure->marshal = marshal;
1188 closure->data = data;
1189 closure->destroy = destroy;
1191 return g_idle_add_full (priority,
1192 gtk_invoke_idle_timeout,
1194 gtk_destroy_closure);
1197 return g_idle_add_full (priority, function, data, destroy);
1201 gtk_idle_add (GtkFunction function,
1204 return g_idle_add_full (GTK_PRIORITY_DEFAULT, function, data, NULL);
1208 gtk_idle_add_priority (gint priority,
1209 GtkFunction function,
1212 return g_idle_add_full (priority, function, data, NULL);
1216 gtk_idle_remove (guint tag)
1218 g_source_remove (tag);
1222 gtk_idle_remove_by_data (gpointer data)
1224 if (!g_idle_remove_by_data (data))
1225 g_warning ("gtk_idle_remove_by_data(%p): no such idle", data);
1229 gtk_input_add_full (gint source,
1230 GdkInputCondition condition,
1231 GdkInputFunction function,
1232 GtkCallbackMarshal marshal,
1234 GtkDestroyNotify destroy)
1238 GtkClosure *closure;
1240 closure = g_new (GtkClosure, 1);
1241 closure->marshal = marshal;
1242 closure->data = data;
1243 closure->destroy = destroy;
1245 return gdk_input_add_full (source,
1247 (GdkInputFunction) gtk_invoke_input,
1249 (GdkDestroyNotify) gtk_destroy_closure);
1252 return gdk_input_add_full (source, condition, function, data, destroy);
1256 gtk_input_remove (guint tag)
1258 g_source_remove (tag);
1262 gtk_destroy_closure (gpointer data)
1264 GtkClosure *closure = data;
1266 if (closure->destroy)
1267 (closure->destroy) (closure->data);
1272 gtk_invoke_idle_timeout (gpointer data)
1274 GtkClosure *closure = data;
1277 gint ret_val = FALSE;
1278 args[0].name = NULL;
1279 args[0].type = GTK_TYPE_BOOL;
1280 args[0].d.pointer_data = &ret_val;
1281 closure->marshal (NULL, closure->data, 0, args);
1286 gtk_invoke_input (gpointer data,
1288 GdkInputCondition condition)
1290 GtkClosure *closure = data;
1293 args[0].type = GTK_TYPE_INT;
1294 args[0].name = NULL;
1295 GTK_VALUE_INT(args[0]) = source;
1296 args[1].type = GTK_TYPE_GDK_INPUT_CONDITION;
1297 args[1].name = NULL;
1298 GTK_VALUE_FLAGS(args[1]) = condition;
1299 args[2].type = GTK_TYPE_NONE;
1300 args[2].name = NULL;
1302 closure->marshal (NULL, closure->data, 2, args);
1306 gtk_get_current_event (void)
1309 return gdk_event_copy (current_events->data);
1315 * gtk_get_current_event_time:
1317 * If there is a current event and it has a timestamp, return that
1318 * timestamp, otherwise return %GDK_CURRENT_TIME.
1320 * Return value: the timestamp from the current event, or %GDK_CURRENT_TIME.
1323 gtk_get_current_event_time (void)
1326 return gdk_event_get_time (current_events->data);
1328 return GDK_CURRENT_TIME;
1332 gtk_get_current_event_state (GdkModifierType *state)
1334 g_return_val_if_fail (state != NULL, FALSE);
1337 return gdk_event_get_state (current_events->data, state);
1346 gtk_get_event_widget (GdkEvent *event)
1351 if (event && event->any.window)
1352 gdk_window_get_user_data (event->any.window, (void**) &widget);
1358 gtk_exit_func (void)
1360 if (gtk_initialized)
1362 gtk_initialized = FALSE;
1368 gtk_quit_invoke_function (GtkQuitFunction *quitf)
1370 if (!quitf->marshal)
1371 return quitf->function (quitf->data);
1375 gint ret_val = FALSE;
1377 args[0].name = NULL;
1378 args[0].type = GTK_TYPE_BOOL;
1379 args[0].d.pointer_data = &ret_val;
1380 ((GtkCallbackMarshal) quitf->marshal) (NULL,
1388 gtk_propagate_event (GtkWidget *widget,
1393 g_return_if_fail (widget != NULL);
1394 g_return_if_fail (GTK_IS_WIDGET (widget));
1395 g_return_if_fail (event != NULL);
1397 handled_event = FALSE;
1399 if ((event->type == GDK_KEY_PRESS) ||
1400 (event->type == GDK_KEY_RELEASE))
1402 /* Only send key events within Window widgets to the Window
1403 * The Window widget will in turn pass the
1404 * key event on to the currently focused widget
1409 window = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
1412 if (GTK_WIDGET_IS_SENSITIVE (window))
1413 gtk_widget_event (window, event);
1415 handled_event = TRUE; /* don't send to widget */
1419 /* Other events get propagated up the widget tree
1420 * so that parents can see the button and motion
1421 * events of the children.
1423 while (!handled_event && widget)
1427 gtk_widget_ref (widget);
1428 handled_event = !GTK_WIDGET_IS_SENSITIVE (widget) || gtk_widget_event (widget, event);
1429 tmp = widget->parent;
1430 gtk_widget_unref (widget);
1437 gtk_error (gchar *str)
1443 gtk_warning (gchar *str)
1449 gtk_message (gchar *str)
1455 gtk_print (gchar *str)
1457 static GtkWidget *window = NULL;
1458 static GtkWidget *text;
1459 static int level = 0;
1463 GtkWidget *hscrollbar;
1464 GtkWidget *vscrollbar;
1465 GtkWidget *separator;
1470 fputs (str, stdout);
1477 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
1479 gtk_signal_connect (GTK_OBJECT (window), "destroy",
1480 (GtkSignalFunc) gtk_widget_destroyed,
1483 gtk_window_set_title (GTK_WINDOW (window), "Messages");
1485 box1 = gtk_vbox_new (FALSE, 0);
1486 gtk_container_add (GTK_CONTAINER (window), box1);
1487 gtk_widget_show (box1);
1490 box2 = gtk_vbox_new (FALSE, 10);
1491 gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
1492 gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
1493 gtk_widget_show (box2);
1496 table = gtk_table_new (2, 2, FALSE);
1497 gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
1498 gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
1499 gtk_box_pack_start (GTK_BOX (box2), table, TRUE, TRUE, 0);
1500 gtk_widget_show (table);
1502 text = gtk_text_new (NULL, NULL);
1503 gtk_text_set_editable (GTK_TEXT (text), FALSE);
1504 gtk_table_attach_defaults (GTK_TABLE (table), text, 0, 1, 0, 1);
1505 gtk_widget_show (text);
1506 gtk_widget_realize (text);
1508 hscrollbar = gtk_hscrollbar_new (GTK_TEXT (text)->hadj);
1509 gtk_table_attach (GTK_TABLE (table), hscrollbar, 0, 1, 1, 2,
1510 GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
1511 gtk_widget_show (hscrollbar);
1513 vscrollbar = gtk_vscrollbar_new (GTK_TEXT (text)->vadj);
1514 gtk_table_attach (GTK_TABLE (table), vscrollbar, 1, 2, 0, 1,
1515 GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
1516 gtk_widget_show (vscrollbar);
1518 separator = gtk_hseparator_new ();
1519 gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
1520 gtk_widget_show (separator);
1523 box2 = gtk_vbox_new (FALSE, 10);
1524 gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
1525 gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
1526 gtk_widget_show (box2);
1529 button = gtk_button_new_with_label ("close");
1530 gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
1531 (GtkSignalFunc) gtk_widget_hide,
1532 GTK_OBJECT (window));
1533 gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
1534 GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
1535 gtk_widget_grab_default (button);
1536 gtk_widget_show (button);
1540 gtk_text_insert (GTK_TEXT (text), NULL, NULL, NULL, str, -1);
1543 if (!GTK_WIDGET_VISIBLE (window))
1544 gtk_widget_show (window);