1 /* GDK - The GIMP Drawing Kit
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/.
28 #include <string.h> /* For memset() */
31 #include "gdkinternals.h"
34 typedef struct _GdkIOClosure GdkIOClosure;
38 GdkInputFunction function;
39 GdkInputCondition condition;
40 GdkDestroyNotify notify;
44 /* Private variable declarations
47 GdkEventFunc _gdk_event_func = NULL; /* Callback for events */
48 gpointer _gdk_event_data = NULL;
49 GDestroyNotify _gdk_event_notify = NULL;
51 /*********************************************
52 * Functions for maintaining the event queue *
53 *********************************************/
56 * _gdk_event_queue_find_first:
57 * @display: a #GdkDisplay
59 * Find the first event on the queue that is not still
62 * Return value: Pointer to the list node for that event, or NULL.
65 _gdk_event_queue_find_first (GdkDisplay *display)
67 GList *tmp_list = display->queued_events;
71 GdkEventPrivate *event = tmp_list->data;
72 if (!(event->flags & GDK_EVENT_PENDING))
75 tmp_list = g_list_next (tmp_list);
82 * _gdk_event_queue_append:
83 * @display: a #GdkDisplay
84 * @event: Event to append.
86 * Appends an event onto the tail of the event queue.
88 * Returns: the newly appended list node.
91 _gdk_event_queue_append (GdkDisplay *display,
94 display->queued_tail = g_list_append (display->queued_tail, event);
96 if (!display->queued_events)
97 display->queued_events = display->queued_tail;
99 display->queued_tail = display->queued_tail->next;
101 return display->queued_tail;
105 * _gdk_event_queue_remove_link:
106 * @display: a #GdkDisplay
107 * @node: node to remove
109 * Removes a specified list node from the event queue.
112 _gdk_event_queue_remove_link (GdkDisplay *display,
116 node->prev->next = node->next;
118 display->queued_events = node->next;
121 node->next->prev = node->prev;
123 display->queued_tail = node->prev;
127 * _gdk_event_unqueue:
128 * @display: a #GdkDisplay
130 * Removes and returns the first event from the event
131 * queue that is not still being filled in.
133 * Return value: the event, or %NULL. Ownership is transferred
137 _gdk_event_unqueue (GdkDisplay *display)
139 GdkEvent *event = NULL;
142 tmp_list = _gdk_event_queue_find_first (display);
146 event = tmp_list->data;
147 _gdk_event_queue_remove_link (display, tmp_list);
148 g_list_free_1 (tmp_list);
155 * gdk_event_handler_set:
156 * @func: the function to call to handle events from GDK.
157 * @data: user data to pass to the function.
158 * @notify: the function to call when the handler function is removed, i.e. when
159 * gdk_event_handler_set() is called with another event handler.
161 * Sets the function to call to handle all events from GDK.
163 * Note that GTK+ uses this to install its own event handler, so it is
164 * usually not useful for GTK+ applications. (Although an application
165 * can call this function then call gtk_main_do_event() to pass
169 gdk_event_handler_set (GdkEventFunc func,
171 GDestroyNotify notify)
173 if (_gdk_event_notify)
174 (*_gdk_event_notify) (_gdk_event_data);
176 _gdk_event_func = func;
177 _gdk_event_data = data;
178 _gdk_event_notify = notify;
184 * Checks all open displays for a #GdkEvent to process,to be processed
185 * on, fetching events from the windowing system if necessary.
186 * See gdk_display_get_event().
188 * Return value: the next #GdkEvent to be processed, or %NULL if no events
189 * are pending. The returned #GdkEvent should be freed with gdk_event_free().
196 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
198 GdkEvent *event = gdk_display_get_event (tmp_list->data);
209 * If there is an event waiting in the event queue of some open
210 * display, returns a copy of it. See gdk_display_peek_event().
212 * Return value: a copy of the first #GdkEvent on some event queue, or %NULL if no
213 * events are in any queues. The returned #GdkEvent should be freed with
217 gdk_event_peek (void)
221 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
223 GdkEvent *event = gdk_display_peek_event (tmp_list->data);
233 * @event: a #GdkEvent.
235 * Appends a copy of the given event onto the front of the event
236 * queue for event->any.window's display, or the default event
237 * queue if event->any.window is %NULL. See gdk_display_put_event().
240 gdk_event_put (const GdkEvent *event)
244 g_return_if_fail (event != NULL);
246 if (event->any.window)
247 display = gdk_drawable_get_display (event->any.window);
251 g_message ("Falling back to default display for gdk_event_put()"));
252 display = gdk_display_get_default ();
255 gdk_display_put_event (display, event);
258 static GHashTable *event_hash = NULL;
262 * @type: a #GdkEventType
264 * Creates a new event of the given type. All fields are set to 0.
266 * Return value: a newly-allocated #GdkEvent. The returned #GdkEvent
267 * should be freed with gdk_event_free().
272 gdk_event_new (GdkEventType type)
274 GdkEventPrivate *new_private;
278 event_hash = g_hash_table_new (g_direct_hash, NULL);
280 new_private = g_slice_new0 (GdkEventPrivate);
282 new_private->flags = 0;
283 new_private->screen = NULL;
285 g_hash_table_insert (event_hash, new_private, GUINT_TO_POINTER (1));
287 new_event = (GdkEvent *) new_private;
289 new_event->any.type = type;
292 * Bytewise 0 initialization is reasonable for most of the
293 * current event types. Explicitely initialize double fields
294 * since I trust bytewise 0 == 0. less than for integers
299 case GDK_MOTION_NOTIFY:
300 new_event->motion.x = 0.;
301 new_event->motion.y = 0.;
302 new_event->motion.x_root = 0.;
303 new_event->motion.y_root = 0.;
305 case GDK_BUTTON_PRESS:
306 case GDK_2BUTTON_PRESS:
307 case GDK_3BUTTON_PRESS:
308 case GDK_BUTTON_RELEASE:
309 new_event->button.x = 0.;
310 new_event->button.y = 0.;
311 new_event->button.x_root = 0.;
312 new_event->button.y_root = 0.;
315 new_event->scroll.x = 0.;
316 new_event->scroll.y = 0.;
317 new_event->scroll.x_root = 0.;
318 new_event->scroll.y_root = 0.;
320 case GDK_ENTER_NOTIFY:
321 case GDK_LEAVE_NOTIFY:
322 new_event->crossing.x = 0.;
323 new_event->crossing.y = 0.;
324 new_event->crossing.x_root = 0.;
325 new_event->crossing.y_root = 0.;
335 gdk_event_is_allocated (const GdkEvent *event)
338 return g_hash_table_lookup (event_hash, event) != NULL;
345 * @event: a #GdkEvent
347 * Copies a #GdkEvent, copying or incrementing the reference count of the
348 * resources associated with it (e.g. #GdkWindow's and strings).
350 * Return value: a copy of @event. The returned #GdkEvent should be freed with
354 gdk_event_copy (const GdkEvent *event)
356 GdkEventPrivate *new_private;
359 g_return_val_if_fail (event != NULL, NULL);
361 new_event = gdk_event_new (GDK_NOTHING);
362 new_private = (GdkEventPrivate *)new_event;
365 if (new_event->any.window)
366 g_object_ref (new_event->any.window);
368 if (gdk_event_is_allocated (event))
370 GdkEventPrivate *private = (GdkEventPrivate *)event;
372 new_private->screen = private->screen;
375 switch (event->any.type)
378 case GDK_KEY_RELEASE:
379 new_event->key.string = g_strdup (event->key.string);
382 case GDK_ENTER_NOTIFY:
383 case GDK_LEAVE_NOTIFY:
384 if (event->crossing.subwindow != NULL)
385 g_object_ref (event->crossing.subwindow);
390 case GDK_DRAG_MOTION:
391 case GDK_DRAG_STATUS:
393 case GDK_DROP_FINISHED:
394 g_object_ref (event->dnd.context);
398 if (event->expose.region)
399 new_event->expose.region = gdk_region_copy (event->expose.region);
403 new_event->setting.name = g_strdup (new_event->setting.name);
406 case GDK_BUTTON_PRESS:
407 case GDK_BUTTON_RELEASE:
408 if (event->button.axes)
409 new_event->button.axes = g_memdup (event->button.axes,
410 sizeof (gdouble) * event->button.device->num_axes);
413 case GDK_MOTION_NOTIFY:
414 if (event->motion.axes)
415 new_event->motion.axes = g_memdup (event->motion.axes,
416 sizeof (gdouble) * event->motion.device->num_axes);
429 * @event: a #GdkEvent.
431 * Frees a #GdkEvent, freeing or decrementing any resources associated with it.
432 * Note that this function should only be called with events returned from
433 * functions such as gdk_event_peek(), gdk_event_get(),
434 * gdk_event_get_graphics_expose() and gdk_event_copy().
437 gdk_event_free (GdkEvent *event)
439 g_return_if_fail (event != NULL);
441 if (event->any.window)
442 g_object_unref (event->any.window);
444 switch (event->any.type)
447 case GDK_KEY_RELEASE:
448 g_free (event->key.string);
451 case GDK_ENTER_NOTIFY:
452 case GDK_LEAVE_NOTIFY:
453 if (event->crossing.subwindow != NULL)
454 g_object_unref (event->crossing.subwindow);
459 case GDK_DRAG_MOTION:
460 case GDK_DRAG_STATUS:
462 case GDK_DROP_FINISHED:
463 g_object_unref (event->dnd.context);
466 case GDK_BUTTON_PRESS:
467 case GDK_BUTTON_RELEASE:
468 g_free (event->button.axes);
472 if (event->expose.region)
473 gdk_region_destroy (event->expose.region);
476 case GDK_MOTION_NOTIFY:
477 g_free (event->motion.axes);
481 g_free (event->setting.name);
488 g_hash_table_remove (event_hash, event);
489 g_slice_free (GdkEventPrivate, (GdkEventPrivate*) event);
493 * gdk_event_get_time:
494 * @event: a #GdkEvent
496 * Returns the time stamp from @event, if there is one; otherwise
497 * returns #GDK_CURRENT_TIME. If @event is %NULL, returns #GDK_CURRENT_TIME.
499 * Return value: time stamp field from @event
502 gdk_event_get_time (const GdkEvent *event)
507 case GDK_MOTION_NOTIFY:
508 return event->motion.time;
509 case GDK_BUTTON_PRESS:
510 case GDK_2BUTTON_PRESS:
511 case GDK_3BUTTON_PRESS:
512 case GDK_BUTTON_RELEASE:
513 return event->button.time;
515 return event->scroll.time;
517 case GDK_KEY_RELEASE:
518 return event->key.time;
519 case GDK_ENTER_NOTIFY:
520 case GDK_LEAVE_NOTIFY:
521 return event->crossing.time;
522 case GDK_PROPERTY_NOTIFY:
523 return event->property.time;
524 case GDK_SELECTION_CLEAR:
525 case GDK_SELECTION_REQUEST:
526 case GDK_SELECTION_NOTIFY:
527 return event->selection.time;
528 case GDK_PROXIMITY_IN:
529 case GDK_PROXIMITY_OUT:
530 return event->proximity.time;
533 case GDK_DRAG_MOTION:
534 case GDK_DRAG_STATUS:
536 case GDK_DROP_FINISHED:
537 return event->dnd.time;
538 case GDK_CLIENT_EVENT:
539 case GDK_VISIBILITY_NOTIFY:
542 case GDK_FOCUS_CHANGE:
549 case GDK_WINDOW_STATE:
551 case GDK_OWNER_CHANGE:
552 case GDK_GRAB_BROKEN:
553 /* return current time */
557 return GDK_CURRENT_TIME;
561 * gdk_event_get_state:
562 * @event: a #GdkEvent or NULL
563 * @state: return location for state
565 * If the event contains a "state" field, puts that field in @state. Otherwise
566 * stores an empty state (0). Returns %TRUE if there was a state field
567 * in the event. @event may be %NULL, in which case it's treated
568 * as if the event had no state field.
570 * Return value: %TRUE if there was a state field in the event
573 gdk_event_get_state (const GdkEvent *event,
574 GdkModifierType *state)
576 g_return_val_if_fail (state != NULL, FALSE);
581 case GDK_MOTION_NOTIFY:
582 *state = event->motion.state;
584 case GDK_BUTTON_PRESS:
585 case GDK_2BUTTON_PRESS:
586 case GDK_3BUTTON_PRESS:
587 case GDK_BUTTON_RELEASE:
588 *state = event->button.state;
591 *state = event->scroll.state;
594 case GDK_KEY_RELEASE:
595 *state = event->key.state;
597 case GDK_ENTER_NOTIFY:
598 case GDK_LEAVE_NOTIFY:
599 *state = event->crossing.state;
601 case GDK_PROPERTY_NOTIFY:
602 *state = event->property.state;
604 case GDK_VISIBILITY_NOTIFY:
605 case GDK_CLIENT_EVENT:
608 case GDK_FOCUS_CHANGE:
609 case GDK_SELECTION_CLEAR:
610 case GDK_SELECTION_REQUEST:
611 case GDK_SELECTION_NOTIFY:
612 case GDK_PROXIMITY_IN:
613 case GDK_PROXIMITY_OUT:
616 case GDK_DRAG_MOTION:
617 case GDK_DRAG_STATUS:
619 case GDK_DROP_FINISHED:
626 case GDK_WINDOW_STATE:
628 case GDK_OWNER_CHANGE:
629 case GDK_GRAB_BROKEN:
639 * gdk_event_get_coords:
640 * @event: a #GdkEvent
641 * @x_win: location to put event window x coordinate
642 * @y_win: location to put event window y coordinate
644 * Extract the event window relative x/y coordinates from an event.
646 * Return value: %TRUE if the event delivered event window coordinates
649 gdk_event_get_coords (const GdkEvent *event,
653 gdouble x = 0, y = 0;
654 gboolean fetched = TRUE;
656 g_return_val_if_fail (event != NULL, FALSE);
661 x = event->configure.x;
662 y = event->configure.y;
664 case GDK_ENTER_NOTIFY:
665 case GDK_LEAVE_NOTIFY:
666 x = event->crossing.x;
667 y = event->crossing.y;
673 case GDK_BUTTON_PRESS:
674 case GDK_2BUTTON_PRESS:
675 case GDK_3BUTTON_PRESS:
676 case GDK_BUTTON_RELEASE:
680 case GDK_MOTION_NOTIFY:
698 * gdk_event_get_root_coords:
699 * @event: a #GdkEvent
700 * @x_root: location to put root window x coordinate
701 * @y_root: location to put root window y coordinate
703 * Extract the root window relative x/y coordinates from an event.
705 * Return value: %TRUE if the event delivered root window coordinates
708 gdk_event_get_root_coords (const GdkEvent *event,
712 gdouble x = 0, y = 0;
713 gboolean fetched = TRUE;
715 g_return_val_if_fail (event != NULL, FALSE);
719 case GDK_MOTION_NOTIFY:
720 x = event->motion.x_root;
721 y = event->motion.y_root;
724 x = event->scroll.x_root;
725 y = event->scroll.y_root;
727 case GDK_BUTTON_PRESS:
728 case GDK_2BUTTON_PRESS:
729 case GDK_3BUTTON_PRESS:
730 case GDK_BUTTON_RELEASE:
731 x = event->button.x_root;
732 y = event->button.y_root;
734 case GDK_ENTER_NOTIFY:
735 case GDK_LEAVE_NOTIFY:
736 x = event->crossing.x_root;
737 y = event->crossing.y_root;
741 case GDK_DRAG_MOTION:
742 case GDK_DRAG_STATUS:
744 case GDK_DROP_FINISHED:
745 x = event->dnd.x_root;
746 y = event->dnd.y_root;
762 * gdk_event_get_axis:
763 * @event: a #GdkEvent
764 * @axis_use: the axis use to look for
765 * @value: location to store the value found
767 * Extract the axis value for a particular axis use from
768 * an event structure.
770 * Return value: %TRUE if the specified axis was found, otherwise %FALSE
773 gdk_event_get_axis (const GdkEvent *event,
780 g_return_val_if_fail (event != NULL, FALSE);
782 if (axis_use == GDK_AXIS_X || axis_use == GDK_AXIS_Y)
788 case GDK_MOTION_NOTIFY:
796 case GDK_BUTTON_PRESS:
797 case GDK_BUTTON_RELEASE:
801 case GDK_ENTER_NOTIFY:
802 case GDK_LEAVE_NOTIFY:
803 x = event->crossing.x;
804 y = event->crossing.y;
811 if (axis_use == GDK_AXIS_X && value)
813 if (axis_use == GDK_AXIS_Y && value)
818 else if (event->type == GDK_BUTTON_PRESS ||
819 event->type == GDK_BUTTON_RELEASE)
821 device = event->button.device;
822 axes = event->button.axes;
824 else if (event->type == GDK_MOTION_NOTIFY)
826 device = event->motion.device;
827 axes = event->motion.axes;
832 return gdk_device_get_axis (device, axes, axis_use, value);
836 * gdk_event_request_motions:
837 * @event: a valid #GdkEvent
839 * Request more motion notifies if @event is a motion notify hint event.
840 * This function should be used instead of gdk_window_get_pointer() to
841 * request further motion notifies, because it also works for extension
842 * events where motion notifies are provided for devices other than the
843 * core pointer. Coordinate extraction, processing and requesting more
844 * motion events from a %GDK_MOTION_NOTIFY event usually works like this:
848 * /* motion_event handler */
849 * x = motion_event->x;
850 * y = motion_event->y;
851 * /* handle (x,y) motion */
852 * gdk_event_request_motions (motion_event); /* handles is_hint events */
859 gdk_event_request_motions (const GdkEventMotion *event)
861 g_return_if_fail (event != NULL);
862 if (event->type == GDK_MOTION_NOTIFY && event->is_hint)
863 gdk_device_get_state (event->device, event->window, NULL, NULL);
867 * gdk_event_set_screen:
868 * @event: a #GdkEvent
869 * @screen: a #GdkScreen
871 * Sets the screen for @event to @screen. The event must
872 * have been allocated by GTK+, for instance, by
878 gdk_event_set_screen (GdkEvent *event,
881 GdkEventPrivate *private;
883 g_return_if_fail (gdk_event_is_allocated (event));
885 private = (GdkEventPrivate *)event;
887 private->screen = screen;
891 * gdk_event_get_screen:
892 * @event: a #GdkEvent
894 * Returns the screen for the event. The screen is
895 * typically the screen for <literal>event->any.window</literal>, but
896 * for events such as mouse events, it is the screen
897 * where the pointer was when the event occurs -
898 * that is, the screen which has the root window
899 * to which <literal>event->motion.x_root</literal> and
900 * <literal>event->motion.y_root</literal> are relative.
902 * Return value: the screen for the event
907 gdk_event_get_screen (const GdkEvent *event)
909 if (gdk_event_is_allocated (event))
911 GdkEventPrivate *private = (GdkEventPrivate *)event;
914 return private->screen;
917 if (event->any.window)
918 return gdk_drawable_get_screen (event->any.window);
924 * gdk_set_show_events:
925 * @show_events: %TRUE to output event debugging information.
927 * Sets whether a trace of received events is output.
928 * Note that GTK+ must be compiled with debugging (that is,
929 * configured using the <option>--enable-debug</option> option)
930 * to use this option.
933 gdk_set_show_events (gboolean show_events)
936 _gdk_debug_flags |= GDK_DEBUG_EVENTS;
938 _gdk_debug_flags &= ~GDK_DEBUG_EVENTS;
942 * gdk_get_show_events:
944 * Gets whether event debugging output is enabled.
946 * Return value: %TRUE if event debugging output is enabled.
949 gdk_get_show_events (void)
951 return (_gdk_debug_flags & GDK_DEBUG_EVENTS) != 0;
955 gdk_io_destroy (gpointer data)
957 GdkIOClosure *closure = data;
960 closure->notify (closure->data);
965 /* What do we do with G_IO_NVAL?
967 #define READ_CONDITION (G_IO_IN | G_IO_HUP | G_IO_ERR)
968 #define WRITE_CONDITION (G_IO_OUT | G_IO_ERR)
969 #define EXCEPTION_CONDITION (G_IO_PRI)
972 gdk_io_invoke (GIOChannel *source,
973 GIOCondition condition,
976 GdkIOClosure *closure = data;
977 GdkInputCondition gdk_cond = 0;
979 if (condition & READ_CONDITION)
980 gdk_cond |= GDK_INPUT_READ;
981 if (condition & WRITE_CONDITION)
982 gdk_cond |= GDK_INPUT_WRITE;
983 if (condition & EXCEPTION_CONDITION)
984 gdk_cond |= GDK_INPUT_EXCEPTION;
986 if (closure->condition & gdk_cond)
987 closure->function (closure->data, g_io_channel_unix_get_fd (source), gdk_cond);
993 gdk_input_add_full (gint source,
994 GdkInputCondition condition,
995 GdkInputFunction function,
997 GdkDestroyNotify destroy)
1000 GdkIOClosure *closure = g_new (GdkIOClosure, 1);
1001 GIOChannel *channel;
1002 GIOCondition cond = 0;
1004 closure->function = function;
1005 closure->condition = condition;
1006 closure->notify = destroy;
1007 closure->data = data;
1009 if (condition & GDK_INPUT_READ)
1010 cond |= READ_CONDITION;
1011 if (condition & GDK_INPUT_WRITE)
1012 cond |= WRITE_CONDITION;
1013 if (condition & GDK_INPUT_EXCEPTION)
1014 cond |= EXCEPTION_CONDITION;
1016 channel = g_io_channel_unix_new (source);
1017 result = g_io_add_watch_full (channel, G_PRIORITY_DEFAULT, cond,
1019 closure, gdk_io_destroy);
1020 g_io_channel_unref (channel);
1026 gdk_input_add (gint source,
1027 GdkInputCondition condition,
1028 GdkInputFunction function,
1031 return gdk_input_add_full (source, condition, function, data, NULL);
1035 gdk_input_remove (gint tag)
1037 g_source_remove (tag);
1041 gdk_synthesize_click (GdkDisplay *display,
1045 GdkEvent temp_event;
1047 g_return_if_fail (event != NULL);
1049 temp_event = *event;
1050 temp_event.type = (nclicks == 2) ? GDK_2BUTTON_PRESS : GDK_3BUTTON_PRESS;
1052 gdk_display_put_event (display, &temp_event);
1056 _gdk_event_button_generate (GdkDisplay *display,
1059 if ((event->button.time < (display->button_click_time[1] + 2*display->double_click_time)) &&
1060 (event->button.window == display->button_window[1]) &&
1061 (event->button.button == display->button_number[1]) &&
1062 (ABS (event->button.x - display->button_x[1]) <= display->double_click_distance) &&
1063 (ABS (event->button.y - display->button_y[1]) <= display->double_click_distance))
1065 gdk_synthesize_click (display, event, 3);
1067 display->button_click_time[1] = 0;
1068 display->button_click_time[0] = 0;
1069 display->button_window[1] = NULL;
1070 display->button_window[0] = NULL;
1071 display->button_number[1] = -1;
1072 display->button_number[0] = -1;
1073 display->button_x[0] = display->button_x[1] = 0;
1074 display->button_y[0] = display->button_y[1] = 0;
1076 else if ((event->button.time < (display->button_click_time[0] + display->double_click_time)) &&
1077 (event->button.window == display->button_window[0]) &&
1078 (event->button.button == display->button_number[0]) &&
1079 (ABS (event->button.x - display->button_x[0]) <= display->double_click_distance) &&
1080 (ABS (event->button.y - display->button_y[0]) <= display->double_click_distance))
1082 gdk_synthesize_click (display, event, 2);
1084 display->button_click_time[1] = display->button_click_time[0];
1085 display->button_click_time[0] = event->button.time;
1086 display->button_window[1] = display->button_window[0];
1087 display->button_window[0] = event->button.window;
1088 display->button_number[1] = display->button_number[0];
1089 display->button_number[0] = event->button.button;
1090 display->button_x[1] = display->button_x[0];
1091 display->button_x[0] = event->button.x;
1092 display->button_y[1] = display->button_y[0];
1093 display->button_y[0] = event->button.y;
1097 display->button_click_time[1] = 0;
1098 display->button_click_time[0] = event->button.time;
1099 display->button_window[1] = NULL;
1100 display->button_window[0] = event->button.window;
1101 display->button_number[1] = -1;
1102 display->button_number[0] = event->button.button;
1103 display->button_x[1] = 0;
1104 display->button_x[0] = event->button.x;
1105 display->button_y[1] = 0;
1106 display->button_y[0] = event->button.y;
1111 gdk_synthesize_window_state (GdkWindow *window,
1112 GdkWindowState unset_flags,
1113 GdkWindowState set_flags)
1115 GdkEvent temp_event;
1118 g_return_if_fail (window != NULL);
1120 temp_event.window_state.window = window;
1121 temp_event.window_state.type = GDK_WINDOW_STATE;
1122 temp_event.window_state.send_event = FALSE;
1124 old = ((GdkWindowObject*) temp_event.window_state.window)->state;
1126 temp_event.window_state.new_window_state = old;
1127 temp_event.window_state.new_window_state |= set_flags;
1128 temp_event.window_state.new_window_state &= ~unset_flags;
1129 temp_event.window_state.changed_mask = temp_event.window_state.new_window_state ^ old;
1131 if (temp_event.window_state.new_window_state == old)
1132 return; /* No actual work to do, nothing changed. */
1134 /* Actually update the field in GdkWindow, this is sort of an odd
1135 * place to do it, but seems like the safest since it ensures we expose no
1136 * inconsistent state to the user.
1139 ((GdkWindowObject*) window)->state = temp_event.window_state.new_window_state;
1141 /* We only really send the event to toplevels, since
1142 * all the window states don't apply to non-toplevels.
1143 * Non-toplevels do use the GDK_WINDOW_STATE_WITHDRAWN flag
1144 * internally so we needed to update window->state.
1146 switch (((GdkWindowObject*) window)->window_type)
1148 case GDK_WINDOW_TOPLEVEL:
1149 case GDK_WINDOW_DIALOG:
1150 case GDK_WINDOW_TEMP: /* ? */
1151 gdk_display_put_event (gdk_drawable_get_display (window), &temp_event);
1154 case GDK_WINDOW_FOREIGN:
1155 case GDK_WINDOW_ROOT:
1156 case GDK_WINDOW_CHILD:
1162 * gdk_display_set_double_click_time:
1163 * @display: a #GdkDisplay
1164 * @msec: double click time in milliseconds (thousandths of a second)
1166 * Sets the double click time (two clicks within this time interval
1167 * count as a double click and result in a #GDK_2BUTTON_PRESS event).
1168 * Applications should <emphasis>not</emphasis> set this, it is a global
1169 * user-configured setting.
1174 gdk_display_set_double_click_time (GdkDisplay *display,
1177 display->double_click_time = msec;
1181 * gdk_set_double_click_time:
1182 * @msec: double click time in milliseconds (thousandths of a second)
1184 * Set the double click time for the default display. See
1185 * gdk_display_set_double_click_time().
1186 * See also gdk_display_set_double_click_distance().
1187 * Applications should <emphasis>not</emphasis> set this, it is a
1188 * global user-configured setting.
1191 gdk_set_double_click_time (guint msec)
1193 gdk_display_set_double_click_time (gdk_display_get_default (), msec);
1197 * gdk_display_set_double_click_distance:
1198 * @display: a #GdkDisplay
1199 * @distance: distance in pixels
1201 * Sets the double click distance (two clicks within this distance
1202 * count as a double click and result in a #GDK_2BUTTON_PRESS event).
1203 * See also gdk_display_set_double_click_time().
1204 * Applications should <emphasis>not</emphasis> set this, it is a global
1205 * user-configured setting.
1210 gdk_display_set_double_click_distance (GdkDisplay *display,
1213 display->double_click_distance = distance;
1217 gdk_event_get_type (void)
1219 static GType our_type = 0;
1222 our_type = g_boxed_type_register_static (g_intern_static_string ("GdkEvent"),
1223 (GBoxedCopyFunc)gdk_event_copy,
1224 (GBoxedFreeFunc)gdk_event_free);
1230 * @name: the name of the setting.
1231 * @value: location to store the value of the setting.
1233 * Obtains a desktop-wide setting, such as the double-click time,
1234 * for the default screen. See gdk_screen_get_setting().
1236 * Returns : %TRUE if the setting existed and a value was stored
1237 * in @value, %FALSE otherwise.
1240 gdk_setting_get (const gchar *name,
1243 return gdk_screen_get_setting (gdk_screen_get_default (), name, value);
1246 #define __GDK_EVENTS_C__
1247 #include "gdkaliasdef.c"