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},
152 {"updates", GTK_DEBUG_UPDATES}
155 static const guint gtk_ndebug_keys = sizeof (gtk_debug_keys) / sizeof (GDebugKey);
157 #endif /* G_ENABLE_DEBUG */
160 gtk_check_version (guint required_major,
161 guint required_minor,
162 guint required_micro)
164 if (required_major > GTK_MAJOR_VERSION)
165 return "Gtk+ version too old (major mismatch)";
166 if (required_major < GTK_MAJOR_VERSION)
167 return "Gtk+ version too new (major mismatch)";
168 if (required_minor > GTK_MINOR_VERSION)
169 return "Gtk+ version too old (minor mismatch)";
170 if (required_minor < GTK_MINOR_VERSION)
171 return "Gtk+ version too new (minor mismatch)";
172 if (required_micro < GTK_MICRO_VERSION - GTK_BINARY_AGE)
173 return "Gtk+ version too new (micro mismatch)";
174 if (required_micro > GTK_MICRO_VERSION)
175 return "Gtk+ version too old (micro mismatch)";
180 static gchar *add_dll_suffix(gchar *module_name)
182 gchar *suffix = strrchr(module_name, '.');
184 if (!suffix || stricmp(suffix, ".dll"))
186 gchar *old = module_name;
188 module_name = g_strconcat (module_name, ".dll", NULL);
191 return (module_name);
195 #undef gtk_init_check
198 gtk_init_check (int *argc,
201 GSList *gtk_modules = NULL;
203 gchar *env_string = NULL;
209 g_set_error_handler (gtk_error);
210 g_set_warning_handler (gtk_warning);
211 g_set_message_handler (gtk_message);
212 g_set_print_handler (gtk_print);
215 /* Initialize "gdk". We pass along the 'argc' and 'argv'
216 * parameters as they contain information that GDK uses
218 if (!gdk_init_check (argc, argv))
221 gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
223 #ifdef G_ENABLE_DEBUG
224 env_string = getenv ("GTK_DEBUG");
225 if (env_string != NULL)
227 gtk_debug_flags = g_parse_debug_string (env_string,
232 #endif /* G_ENABLE_DEBUG */
234 env_string = getenv ("GTK_MODULES");
237 gchar **modules, **as;
240 modules = g_strsplit (env_string, G_SEARCHPATH_SEPARATOR_S, -1);
242 modules = g_strsplit (env_string, ";", -1);
244 for (as = modules; *as; as++)
247 gtk_modules = g_slist_prepend (gtk_modules, *as);
259 for (i = 1; i < *argc;)
261 if (strcmp ("--gtk-module", (*argv)[i]) == 0 ||
262 strncmp ("--gtk-module=", (*argv)[i], 13) == 0)
264 gchar *module_name = (*argv)[i] + 12;
266 if (*module_name == '=')
268 else if (i + 1 < *argc)
272 module_name = (*argv)[i];
276 if (module_name && *module_name)
277 gtk_modules = g_slist_prepend (gtk_modules, g_strdup (module_name));
279 else if (strcmp ("--g-fatal-warnings", (*argv)[i]) == 0)
281 GLogLevelFlags fatal_mask;
283 fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
284 fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
285 g_log_set_always_fatal (fatal_mask);
288 #ifdef G_ENABLE_DEBUG
289 else if ((strcmp ("--gtk-debug", (*argv)[i]) == 0) ||
290 (strncmp ("--gtk-debug=", (*argv)[i], 12) == 0))
292 gchar *equal_pos = strchr ((*argv)[i], '=');
294 if (equal_pos != NULL)
296 gtk_debug_flags |= g_parse_debug_string (equal_pos+1,
300 else if ((i + 1) < *argc && (*argv)[i + 1])
302 gtk_debug_flags |= g_parse_debug_string ((*argv)[i+1],
310 else if ((strcmp ("--gtk-no-debug", (*argv)[i]) == 0) ||
311 (strncmp ("--gtk-no-debug=", (*argv)[i], 15) == 0))
313 gchar *equal_pos = strchr ((*argv)[i], '=');
315 if (equal_pos != NULL)
317 gtk_debug_flags &= ~g_parse_debug_string (equal_pos+1,
321 else if ((i + 1) < *argc && (*argv)[i + 1])
323 gtk_debug_flags &= ~g_parse_debug_string ((*argv)[i+1],
331 #endif /* G_ENABLE_DEBUG */
335 for (i = 1; i < *argc; i++)
337 for (k = i; k < *argc; k++)
338 if ((*argv)[k] != NULL)
344 for (j = i + k; j < *argc; j++)
345 (*argv)[j-k] = (*argv)[j];
351 if (gtk_debug_flags & GTK_DEBUG_UPDATES)
352 gdk_window_set_debug_updates (TRUE);
354 /* load gtk modules */
355 gtk_modules = g_slist_reverse (gtk_modules);
356 for (slist = gtk_modules; slist; slist = slist->next)
359 GModule *module = NULL;
360 GtkModuleInitFunc modinit_func = NULL;
362 module_name = slist->data;
365 if (!g_path_is_absolute (module_name))
367 gchar *old = module_name;
369 module_name = g_module_build_path (NULL, module_name);
373 module_name = add_dll_suffix(module_name);
375 if (g_module_supported ())
377 module = g_module_open (module_name, G_MODULE_BIND_LAZY);
379 g_module_symbol (module, "gtk_module_init", (gpointer*) &modinit_func) &&
382 if (!g_slist_find (gtk_modules, modinit_func))
384 g_module_make_resident (module);
385 slist->data = modinit_func;
389 g_module_close (module);
396 g_message ("Failed to load module \"%s\": %s",
397 module ? g_module_name (module) : module_name,
400 g_module_close (module);
402 g_free (module_name);
407 bindtextdomain(GETTEXT_PACKAGE, GTK_LOCALEDIR);
408 # ifdef HAVE_BIND_TEXTDOMAIN_CODESET
409 bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
411 # else /* !G_OS_WIN32 */
413 bindtextdomain (GETTEXT_PACKAGE,
414 g_win32_get_package_installation_subdirectory (GETTEXT_PACKAGE,
415 g_strdup_printf ("gtk-%d.%d.dll", GTK_MAJOR_VERSION, GTK_MINOR_VERSION),
422 /* Translate to default:RTL if you want your widgets
423 * to be RTL, otherwise translate to default:LTR.
424 * Do *not* translate it to "predefinito:LTR", if it
425 * it isn't default:LTR or default:RTL it will not work
427 char *e = _("default:LTR");
428 if (strcmp (e, "default:RTL")==0) {
429 gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
430 } else if (strcmp (e, "default:LTR")) {
431 g_warning ("Whoever translated default:LTR did so wrongly.\n");
435 /* Initialize the default visual and colormap to be
436 * used in creating widgets. (We want to use the system
437 * defaults so as to be nice to the colormap).
439 gtk_visual = gdk_visual_get_system ();
440 gtk_colormap = gdk_colormap_get_system ();
447 /* Register an exit function to make sure we are able to cleanup.
449 g_atexit (gtk_exit_func);
451 /* Set the 'initialized' flag.
453 gtk_initialized = TRUE;
455 /* initialize gtk modules
457 for (slist = gtk_modules; slist; slist = slist->next)
461 GtkModuleInitFunc modinit;
463 modinit = slist->data;
464 modinit (argc, argv);
467 g_slist_free (gtk_modules);
470 /* No use warning on Win32, there aren't any non-devel versions anyhow... */
471 g_message ("" "YOU ARE USING THE DEVEL BRANCH 1.3.x OF GTK+ WHICH IS CURRENTLY\n"
472 " UNDER HEAVY DEVELOPMENT AND FREQUENTLY INTRODUCES INSTABILITIES.\n"
473 " if you don't know why you are getting this, you probably want to\n"
474 " use the stable branch which can be retrived from\n"
475 " ftp://ftp.gtk.org/pub/gtk/v1.2/ or via CVS with\n"
476 " cvs checkout -r glib-1-2 glib; cvs checkout -r gtk-1-2 gtk+");
485 gtk_init (int *argc, char ***argv)
487 if (!gtk_init_check (argc, argv))
489 g_warning ("cannot open display: %s", gdk_get_display ());
497 check_sizeof_GtkWindow (size_t sizeof_GtkWindow)
499 if (sizeof_GtkWindow != sizeof (GtkWindow))
500 g_error ("Incompatible build!\n"
501 "The code using GTK+ thinks GtkWindow is of different\n"
502 "size than it actually is in this build of GTK+.\n"
503 "On Windows, this probably means that you have compiled\n"
504 "your code with gcc without the -fnative-struct switch.");
507 /* These two functions might get more checks added later, thus pass
508 * in the number of extra args.
511 gtk_init_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow)
513 check_sizeof_GtkWindow (sizeof_GtkWindow);
514 gtk_init (argc, argv);
518 gtk_init_check_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow)
520 check_sizeof_GtkWindow (sizeof_GtkWindow);
521 return gtk_init_check (argc, argv);
527 gtk_exit (gint errorcode)
529 /* Only if "gtk" has been initialized should we de-initialize.
531 /* de-initialisation is done by the gtk_exit_funct(),
532 * no need to do this here (Alex J.)
538 gtk_set_locale (void)
540 return gdk_set_locale ();
544 gtk_get_default_language (void)
549 lang = g_strdup (setlocale (LC_CTYPE, NULL));
550 p = strchr (lang, '.');
553 p = strchr (lang, '@');
565 GtkInitFunction *init;
568 gtk_main_loop_level++;
570 loop = g_main_new (TRUE);
571 main_loops = g_slist_prepend (main_loops, loop);
573 tmp_list = functions = init_functions;
574 init_functions = NULL;
578 init = tmp_list->data;
579 tmp_list = tmp_list->next;
581 (* init->function) (init->data);
584 g_list_free (functions);
586 if (g_main_is_running (main_loops->data))
588 GDK_THREADS_LEAVE ();
590 GDK_THREADS_ENTER ();
596 GList *reinvoke_list = NULL;
597 GtkQuitFunction *quitf;
599 while (quit_functions)
601 quitf = quit_functions->data;
603 tmp_list = quit_functions;
604 quit_functions = g_list_remove_link (quit_functions, quit_functions);
605 g_list_free_1 (tmp_list);
607 if ((quitf->main_level && quitf->main_level != gtk_main_loop_level) ||
608 gtk_quit_invoke_function (quitf))
610 reinvoke_list = g_list_prepend (reinvoke_list, quitf);
614 gtk_quit_destroy (quitf);
621 work = g_list_last (reinvoke_list);
623 quit_functions->prev = work;
624 work->next = quit_functions;
625 quit_functions = work;
631 main_loops = g_slist_remove (main_loops, loop);
633 g_main_destroy (loop);
635 gtk_main_loop_level--;
639 gtk_main_level (void)
641 return gtk_main_loop_level;
647 g_return_if_fail (main_loops != NULL);
649 g_main_quit (main_loops->data);
653 gtk_events_pending (void)
657 GDK_THREADS_LEAVE ();
658 result = g_main_pending();
659 GDK_THREADS_ENTER ();
665 gtk_main_iteration (void)
667 GDK_THREADS_LEAVE ();
668 g_main_iteration (TRUE);
669 GDK_THREADS_ENTER ();
672 return !g_main_is_running (main_loops->data);
678 gtk_main_iteration_do (gboolean blocking)
680 GDK_THREADS_LEAVE ();
681 g_main_iteration (blocking);
682 GDK_THREADS_ENTER ();
685 return !g_main_is_running (main_loops->data);
691 gtk_main_do_event (GdkEvent *event)
693 GtkWidget *event_widget;
694 GtkWidget *grab_widget;
695 GdkEvent *next_event;
698 /* If there are any events pending then get the next one.
700 next_event = gdk_event_peek ();
702 /* Try to compress enter/leave notify events. These event
703 * pairs occur when the mouse is dragged quickly across
704 * a window with many buttons (or through a menu). Instead
705 * of highlighting and de-highlighting each widget that
706 * is crossed it is better to simply de-highlight the widget
707 * which contained the mouse initially and highlight the
708 * widget which ends up containing the mouse.
711 if (((event->type == GDK_ENTER_NOTIFY) ||
712 (event->type == GDK_LEAVE_NOTIFY)) &&
713 ((next_event->type == GDK_ENTER_NOTIFY) ||
714 (next_event->type == GDK_LEAVE_NOTIFY)) &&
715 (next_event->type != event->type) &&
716 (next_event->any.window == event->any.window))
718 /* Throw both the peeked copy and the queued copy away
720 gdk_event_free (next_event);
721 next_event = gdk_event_get ();
722 gdk_event_free (next_event);
728 gdk_event_free (next_event);
730 /* Find the widget which got the event. We store the widget
731 * in the user_data field of GdkWindow's.
732 * Ignore the event if we don't have a widget for it, except
733 * for GDK_PROPERTY_NOTIFY events which are handled specialy.
734 * Though this happens rarely, bogus events can occour
735 * for e.g. destroyed GdkWindows.
737 event_widget = gtk_get_event_widget (event);
740 /* To handle selection INCR transactions, we select
741 * PropertyNotify events on the requestor window and create
742 * a corresponding (fake) GdkWindow so that events get
743 * here. There won't be a widget though, so we have to handle
746 if (event->type == GDK_PROPERTY_NOTIFY)
747 gtk_selection_incr_event (event->any.window,
753 /* Push the event onto a stack of current events for
754 * gtk_current_event_get().
756 current_events = g_list_prepend (current_events, event);
758 /* If there is a grab in effect...
762 grab_widget = grabs->data;
764 /* If the grab widget is an ancestor of the event widget
765 * then we send the event to the original event widget.
766 * This is the key to implementing modality.
768 if (GTK_WIDGET_IS_SENSITIVE (event_widget) &&
769 gtk_widget_is_ancestor (event_widget, grab_widget))
770 grab_widget = event_widget;
774 grab_widget = event_widget;
777 /* Not all events get sent to the grabbing widget.
778 * The delete, destroy, expose, focus change and resize
779 * events still get sent to the event widget because
780 * 1) these events have no meaning for the grabbing widget
781 * and 2) redirecting these events to the grabbing widget
782 * could cause the display to be messed up.
784 * Drag events are also not redirected, since it isn't
785 * clear what the semantics of that would be.
793 gtk_widget_ref (event_widget);
794 if ((!grabs || gtk_widget_get_toplevel (grabs->data) == event_widget) &&
795 !gtk_widget_event (event_widget, event))
796 gtk_widget_destroy (event_widget);
797 gtk_widget_unref (event_widget);
801 /* Unexpected GDK_DESTROY from the outside, ignore for
802 * child windows, handle like a GDK_DELETE for toplevels
804 if (!event_widget->parent)
806 gtk_widget_ref (event_widget);
807 if (!gtk_widget_event (event_widget, event) &&
808 !GTK_OBJECT_DESTROYED (event_widget))
809 gtk_widget_destroy (event_widget);
810 gtk_widget_unref (event_widget);
815 if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
816 gdk_window_begin_paint_rect (event->any.window, &event->expose.area);
818 gtk_widget_event (event_widget, event);
820 if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
821 gdk_window_end_paint (event->any.window);
824 case GDK_PROPERTY_NOTIFY:
826 case GDK_FOCUS_CHANGE:
830 case GDK_SELECTION_CLEAR:
831 case GDK_SELECTION_REQUEST:
832 case GDK_SELECTION_NOTIFY:
833 case GDK_CLIENT_EVENT:
834 case GDK_VISIBILITY_NOTIFY:
835 gtk_widget_event (event_widget, event);
839 case GDK_BUTTON_PRESS:
840 case GDK_2BUTTON_PRESS:
841 case GDK_3BUTTON_PRESS:
842 gtk_propagate_event (grab_widget, event);
846 case GDK_KEY_RELEASE:
849 if (gtk_invoke_key_snoopers (grab_widget, event))
852 /* else fall through */
853 case GDK_MOTION_NOTIFY:
854 case GDK_BUTTON_RELEASE:
855 case GDK_PROXIMITY_IN:
856 case GDK_PROXIMITY_OUT:
857 gtk_propagate_event (grab_widget, event);
860 case GDK_ENTER_NOTIFY:
861 if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
863 gtk_widget_event (grab_widget, event);
864 if (event_widget == grab_widget)
865 GTK_PRIVATE_SET_FLAG (event_widget, GTK_LEAVE_PENDING);
869 case GDK_LEAVE_NOTIFY:
870 if (GTK_WIDGET_LEAVE_PENDING (event_widget))
872 GTK_PRIVATE_UNSET_FLAG (event_widget, GTK_LEAVE_PENDING);
873 gtk_widget_event (event_widget, event);
875 else if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
876 gtk_widget_event (grab_widget, event);
879 case GDK_DRAG_STATUS:
880 case GDK_DROP_FINISHED:
881 gtk_drag_source_handle_event (event_widget, event);
885 case GDK_DRAG_MOTION:
887 gtk_drag_dest_handle_event (event_widget, event);
891 tmp_list = current_events;
892 current_events = g_list_remove_link (current_events, tmp_list);
893 g_list_free_1 (tmp_list);
909 gtk_grab_add (GtkWidget *widget)
911 g_return_if_fail (widget != NULL);
913 if (!GTK_WIDGET_HAS_GRAB (widget))
915 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_GRAB);
917 grabs = g_slist_prepend (grabs, widget);
918 gtk_widget_ref (widget);
923 gtk_grab_get_current (void)
926 return GTK_WIDGET (grabs->data);
931 gtk_grab_remove (GtkWidget *widget)
933 g_return_if_fail (widget != NULL);
935 if (GTK_WIDGET_HAS_GRAB (widget))
937 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_GRAB);
939 grabs = g_slist_remove (grabs, widget);
940 gtk_widget_unref (widget);
945 gtk_init_add (GtkFunction function,
948 GtkInitFunction *init;
950 init = g_new (GtkInitFunction, 1);
951 init->function = function;
954 init_functions = g_list_prepend (init_functions, init);
958 gtk_key_snooper_install (GtkKeySnoopFunc snooper,
961 GtkKeySnooperData *data;
962 static guint snooper_id = 1;
964 g_return_val_if_fail (snooper != NULL, 0);
966 data = g_new (GtkKeySnooperData, 1);
967 data->func = snooper;
968 data->func_data = func_data;
969 data->id = snooper_id++;
970 key_snoopers = g_slist_prepend (key_snoopers, data);
976 gtk_key_snooper_remove (guint snooper_id)
978 GtkKeySnooperData *data = NULL;
981 slist = key_snoopers;
985 if (data->id == snooper_id)
992 key_snoopers = g_slist_remove (key_snoopers, data);
996 gtk_invoke_key_snoopers (GtkWidget *grab_widget,
1000 gint return_val = FALSE;
1002 slist = key_snoopers;
1003 while (slist && !return_val)
1005 GtkKeySnooperData *data;
1008 slist = slist->next;
1009 return_val = (*data->func) (grab_widget, (GdkEventKey*) event, data->func_data);
1016 gtk_quit_add_full (guint main_level,
1017 GtkFunction function,
1018 GtkCallbackMarshal marshal,
1020 GtkDestroyNotify destroy)
1022 static guint quit_id = 1;
1023 GtkQuitFunction *quitf;
1025 g_return_val_if_fail ((function != NULL) || (marshal != NULL), 0);
1027 if (!quit_mem_chunk)
1028 quit_mem_chunk = g_mem_chunk_new ("quit mem chunk", sizeof (GtkQuitFunction),
1029 512, G_ALLOC_AND_FREE);
1031 quitf = g_chunk_new (GtkQuitFunction, quit_mem_chunk);
1033 quitf->id = quit_id++;
1034 quitf->main_level = main_level;
1035 quitf->function = function;
1036 quitf->marshal = marshal;
1038 quitf->destroy = destroy;
1040 quit_functions = g_list_prepend (quit_functions, quitf);
1046 gtk_quit_destroy (GtkQuitFunction *quitf)
1049 quitf->destroy (quitf->data);
1050 g_mem_chunk_free (quit_mem_chunk, quitf);
1054 gtk_quit_destructor (GtkObject **object_p)
1057 gtk_object_destroy (*object_p);
1064 gtk_quit_add_destroy (guint main_level,
1067 GtkObject **object_p;
1069 g_return_if_fail (main_level > 0);
1070 g_return_if_fail (object != NULL);
1071 g_return_if_fail (GTK_IS_OBJECT (object));
1073 object_p = g_new (GtkObject*, 1);
1075 gtk_signal_connect (object,
1077 GTK_SIGNAL_FUNC (gtk_widget_destroyed),
1079 gtk_quit_add (main_level, (GtkFunction) gtk_quit_destructor, object_p);
1083 gtk_quit_add (guint main_level,
1084 GtkFunction function,
1087 return gtk_quit_add_full (main_level, function, NULL, data, NULL);
1091 gtk_quit_remove (guint id)
1093 GtkQuitFunction *quitf;
1096 tmp_list = quit_functions;
1099 quitf = tmp_list->data;
1101 if (quitf->id == id)
1103 quit_functions = g_list_remove_link (quit_functions, tmp_list);
1104 g_list_free (tmp_list);
1105 gtk_quit_destroy (quitf);
1110 tmp_list = tmp_list->next;
1115 gtk_quit_remove_by_data (gpointer data)
1117 GtkQuitFunction *quitf;
1120 tmp_list = quit_functions;
1123 quitf = tmp_list->data;
1125 if (quitf->data == data)
1127 quit_functions = g_list_remove_link (quit_functions, tmp_list);
1128 g_list_free (tmp_list);
1129 gtk_quit_destroy (quitf);
1134 tmp_list = tmp_list->next;
1139 gtk_timeout_add_full (guint32 interval,
1140 GtkFunction function,
1141 GtkCallbackMarshal marshal,
1143 GtkDestroyNotify destroy)
1147 GtkClosure *closure;
1149 closure = g_new (GtkClosure, 1);
1150 closure->marshal = marshal;
1151 closure->data = data;
1152 closure->destroy = destroy;
1154 return g_timeout_add_full (0, interval,
1155 gtk_invoke_idle_timeout,
1157 gtk_destroy_closure);
1160 return g_timeout_add_full (0, interval, function, data, destroy);
1164 gtk_timeout_add (guint32 interval,
1165 GtkFunction function,
1168 return g_timeout_add_full (0, interval, function, data, NULL);
1172 gtk_timeout_remove (guint tag)
1174 g_source_remove (tag);
1178 gtk_idle_add_full (gint priority,
1179 GtkFunction function,
1180 GtkCallbackMarshal marshal,
1182 GtkDestroyNotify destroy)
1186 GtkClosure *closure;
1188 closure = g_new (GtkClosure, 1);
1189 closure->marshal = marshal;
1190 closure->data = data;
1191 closure->destroy = destroy;
1193 return g_idle_add_full (priority,
1194 gtk_invoke_idle_timeout,
1196 gtk_destroy_closure);
1199 return g_idle_add_full (priority, function, data, destroy);
1203 gtk_idle_add (GtkFunction function,
1206 return g_idle_add_full (GTK_PRIORITY_DEFAULT, function, data, NULL);
1210 gtk_idle_add_priority (gint priority,
1211 GtkFunction function,
1214 return g_idle_add_full (priority, function, data, NULL);
1218 gtk_idle_remove (guint tag)
1220 g_source_remove (tag);
1224 gtk_idle_remove_by_data (gpointer data)
1226 if (!g_idle_remove_by_data (data))
1227 g_warning ("gtk_idle_remove_by_data(%p): no such idle", data);
1231 gtk_input_add_full (gint source,
1232 GdkInputCondition condition,
1233 GdkInputFunction function,
1234 GtkCallbackMarshal marshal,
1236 GtkDestroyNotify destroy)
1240 GtkClosure *closure;
1242 closure = g_new (GtkClosure, 1);
1243 closure->marshal = marshal;
1244 closure->data = data;
1245 closure->destroy = destroy;
1247 return gdk_input_add_full (source,
1249 (GdkInputFunction) gtk_invoke_input,
1251 (GdkDestroyNotify) gtk_destroy_closure);
1254 return gdk_input_add_full (source, condition, function, data, destroy);
1258 gtk_input_remove (guint tag)
1260 g_source_remove (tag);
1264 gtk_destroy_closure (gpointer data)
1266 GtkClosure *closure = data;
1268 if (closure->destroy)
1269 (closure->destroy) (closure->data);
1274 gtk_invoke_idle_timeout (gpointer data)
1276 GtkClosure *closure = data;
1279 gint ret_val = FALSE;
1280 args[0].name = NULL;
1281 args[0].type = GTK_TYPE_BOOL;
1282 args[0].d.pointer_data = &ret_val;
1283 closure->marshal (NULL, closure->data, 0, args);
1288 gtk_invoke_input (gpointer data,
1290 GdkInputCondition condition)
1292 GtkClosure *closure = data;
1295 args[0].type = GTK_TYPE_INT;
1296 args[0].name = NULL;
1297 GTK_VALUE_INT(args[0]) = source;
1298 args[1].type = GTK_TYPE_GDK_INPUT_CONDITION;
1299 args[1].name = NULL;
1300 GTK_VALUE_FLAGS(args[1]) = condition;
1301 args[2].type = GTK_TYPE_NONE;
1302 args[2].name = NULL;
1304 closure->marshal (NULL, closure->data, 2, args);
1308 gtk_get_current_event (void)
1311 return gdk_event_copy (current_events->data);
1317 * gtk_get_current_event_time:
1319 * If there is a current event and it has a timestamp, return that
1320 * timestamp, otherwise return %GDK_CURRENT_TIME.
1322 * Return value: the timestamp from the current event, or %GDK_CURRENT_TIME.
1325 gtk_get_current_event_time (void)
1328 return gdk_event_get_time (current_events->data);
1330 return GDK_CURRENT_TIME;
1334 gtk_get_current_event_state (GdkModifierType *state)
1336 g_return_val_if_fail (state != NULL, FALSE);
1339 return gdk_event_get_state (current_events->data, state);
1348 gtk_get_event_widget (GdkEvent *event)
1353 if (event && event->any.window)
1354 gdk_window_get_user_data (event->any.window, (void**) &widget);
1360 gtk_exit_func (void)
1362 if (gtk_initialized)
1364 gtk_initialized = FALSE;
1370 gtk_quit_invoke_function (GtkQuitFunction *quitf)
1372 if (!quitf->marshal)
1373 return quitf->function (quitf->data);
1377 gint ret_val = FALSE;
1379 args[0].name = NULL;
1380 args[0].type = GTK_TYPE_BOOL;
1381 args[0].d.pointer_data = &ret_val;
1382 ((GtkCallbackMarshal) quitf->marshal) (NULL,
1390 gtk_propagate_event (GtkWidget *widget,
1395 g_return_if_fail (widget != NULL);
1396 g_return_if_fail (GTK_IS_WIDGET (widget));
1397 g_return_if_fail (event != NULL);
1399 handled_event = FALSE;
1401 if ((event->type == GDK_KEY_PRESS) ||
1402 (event->type == GDK_KEY_RELEASE))
1404 /* Only send key events within Window widgets to the Window
1405 * The Window widget will in turn pass the
1406 * key event on to the currently focused widget
1411 window = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
1414 if (GTK_WIDGET_IS_SENSITIVE (window))
1415 gtk_widget_event (window, event);
1417 handled_event = TRUE; /* don't send to widget */
1421 /* Other events get propagated up the widget tree
1422 * so that parents can see the button and motion
1423 * events of the children.
1425 while (!handled_event && widget)
1429 gtk_widget_ref (widget);
1430 handled_event = !GTK_WIDGET_IS_SENSITIVE (widget) || gtk_widget_event (widget, event);
1431 tmp = widget->parent;
1432 gtk_widget_unref (widget);
1439 gtk_error (gchar *str)
1445 gtk_warning (gchar *str)
1451 gtk_message (gchar *str)
1457 gtk_print (gchar *str)
1459 static GtkWidget *window = NULL;
1460 static GtkWidget *text;
1461 static int level = 0;
1465 GtkWidget *hscrollbar;
1466 GtkWidget *vscrollbar;
1467 GtkWidget *separator;
1472 fputs (str, stdout);
1479 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
1481 gtk_signal_connect (GTK_OBJECT (window), "destroy",
1482 (GtkSignalFunc) gtk_widget_destroyed,
1485 gtk_window_set_title (GTK_WINDOW (window), "Messages");
1487 box1 = gtk_vbox_new (FALSE, 0);
1488 gtk_container_add (GTK_CONTAINER (window), box1);
1489 gtk_widget_show (box1);
1492 box2 = gtk_vbox_new (FALSE, 10);
1493 gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
1494 gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
1495 gtk_widget_show (box2);
1498 table = gtk_table_new (2, 2, FALSE);
1499 gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
1500 gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
1501 gtk_box_pack_start (GTK_BOX (box2), table, TRUE, TRUE, 0);
1502 gtk_widget_show (table);
1504 text = gtk_text_new (NULL, NULL);
1505 gtk_text_set_editable (GTK_TEXT (text), FALSE);
1506 gtk_table_attach_defaults (GTK_TABLE (table), text, 0, 1, 0, 1);
1507 gtk_widget_show (text);
1508 gtk_widget_realize (text);
1510 hscrollbar = gtk_hscrollbar_new (GTK_TEXT (text)->hadj);
1511 gtk_table_attach (GTK_TABLE (table), hscrollbar, 0, 1, 1, 2,
1512 GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
1513 gtk_widget_show (hscrollbar);
1515 vscrollbar = gtk_vscrollbar_new (GTK_TEXT (text)->vadj);
1516 gtk_table_attach (GTK_TABLE (table), vscrollbar, 1, 2, 0, 1,
1517 GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
1518 gtk_widget_show (vscrollbar);
1520 separator = gtk_hseparator_new ();
1521 gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
1522 gtk_widget_show (separator);
1525 box2 = gtk_vbox_new (FALSE, 10);
1526 gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
1527 gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
1528 gtk_widget_show (box2);
1531 button = gtk_button_new_with_label ("close");
1532 gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
1533 (GtkSignalFunc) gtk_widget_hide,
1534 GTK_OBJECT (window));
1535 gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
1536 GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
1537 gtk_widget_grab_default (button);
1538 gtk_widget_show (button);
1542 gtk_text_insert (GTK_TEXT (text), NULL, NULL, NULL, str, -1);
1545 if (!GTK_WIDGET_VISIBLE (window))
1546 gtk_widget_show (window);