* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
+#include "config.h"
+#include <string.h> /* For memset() */
+#include <math.h>
+
#include "gdk.h"
#include "gdkinternals.h"
-typedef struct _GdkIOClosure GdkIOClosure;
-typedef struct _GdkEventPrivate GdkEventPrivate;
-
-#define DOUBLE_CLICK_TIME 250
-#define TRIPLE_CLICK_TIME 500
-#define DOUBLE_CLICK_DIST 5
-#define TRIPLE_CLICK_DIST 5
-typedef enum
-{
- /* Following flag is set for events on the event queue during
- * translation and cleared afterwards.
- */
- GDK_EVENT_PENDING = 1 << 0
-} GdkEventFlags;
+typedef struct _GdkIOClosure GdkIOClosure;
struct _GdkIOClosure
{
- GdkInputFunction function;
- GdkInputCondition condition;
- GdkDestroyNotify notify;
+ GDestroyNotify notify;
gpointer data;
};
-struct _GdkEventPrivate
-{
- GdkEvent event;
- guint flags;
-};
-
-/*
- * Private function declarations
- */
-
-GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
- GdkEvent *event,
- gpointer data);
-
/* Private variable declarations
*/
-static guint32 button_click_time[2] = { 0, 0}; /* The last 2 button click times. Used
- * to determine if the latest button click
- * is part of a double or triple click.
- */
-static GdkWindow *button_window[2] = { NULL, NULL}; /* The last 2 windows to receive button presses.
- * Also used to determine if the latest button
- * click is part of a double or triple click.
- */
-static guint button_number[2] = { -1, -1 }; /* The last 2 buttons to be pressed.
- */
-GdkEventFunc gdk_event_func = NULL; /* Callback for events */
-gpointer gdk_event_data = NULL;
-GDestroyNotify gdk_event_notify = NULL;
-
-GPollFD event_poll_fd;
+GdkEventFunc _gdk_event_func = NULL; /* Callback for events */
+gpointer _gdk_event_data = NULL;
+GDestroyNotify _gdk_event_notify = NULL;
/*********************************************
* Functions for maintaining the event queue *
*********************************************/
-/*************************************************************
- * gdk_event_queue_find_first:
- * Find the first event on the queue that is not still
- * being filled in.
- * arguments:
- *
- * results:
- * Pointer to the list node for that event, or NULL
- *************************************************************/
-
+/**
+ * _gdk_event_queue_find_first:
+ * @display: a #GdkDisplay
+ *
+ * Find the first event on the queue that is not still
+ * being filled in.
+ *
+ * Return value: Pointer to the list node for that event, or NULL.
+ **/
GList*
-gdk_event_queue_find_first (void)
+_gdk_event_queue_find_first (GdkDisplay *display)
{
- GList *tmp_list = gdk_queued_events;
+ GList *tmp_list = display->queued_events;
while (tmp_list)
{
return NULL;
}
-/*************************************************************
- * gdk_event_queue_remove_link:
- * Remove a specified list node from the event queue.
- * arguments:
- * node: Node to remove.
- * results:
- *************************************************************/
+/**
+ * _gdk_event_queue_prepend:
+ * @display: a #GdkDisplay
+ * @event: Event to prepend.
+ *
+ * Prepends an event before the head of the event queue.
+ *
+ * Returns: the newly prepended list node.
+ **/
+GList*
+_gdk_event_queue_prepend (GdkDisplay *display,
+ GdkEvent *event)
+{
+ display->queued_events = g_list_prepend (display->queued_events, event);
+ if (!display->queued_tail)
+ display->queued_tail = display->queued_events;
+ return display->queued_events;
+}
+
+/**
+ * _gdk_event_queue_append:
+ * @display: a #GdkDisplay
+ * @event: Event to append.
+ *
+ * Appends an event onto the tail of the event queue.
+ *
+ * Returns: the newly appended list node.
+ **/
+GList *
+_gdk_event_queue_append (GdkDisplay *display,
+ GdkEvent *event)
+{
+ display->queued_tail = g_list_append (display->queued_tail, event);
+
+ if (!display->queued_events)
+ display->queued_events = display->queued_tail;
+ else
+ display->queued_tail = display->queued_tail->next;
+
+ return display->queued_tail;
+}
+
+/**
+ * _gdk_event_queue_insert_after:
+ * @display: a #GdkDisplay
+ * @sibling: Append after this event.
+ * @event: Event to append.
+ *
+ * Appends an event after the specified event, or if it isn't in
+ * the queue, onto the tail of the event queue.
+ *
+ * Returns: the newly appended list node.
+ *
+ * Since: 2.16
+ */
+GList*
+_gdk_event_queue_insert_after (GdkDisplay *display,
+ GdkEvent *sibling,
+ GdkEvent *event)
+{
+ GList *prev = g_list_find (display->queued_events, sibling);
+ if (prev && prev->next)
+ {
+ display->queued_events = g_list_insert_before (display->queued_events, prev->next, event);
+ return prev->next;
+ }
+ else
+ return _gdk_event_queue_append (display, event);
+}
+
+/**
+ * _gdk_event_queue_insert_after:
+ * @display: a #GdkDisplay
+ * @sibling: Append after this event.
+ * @event: Event to append.
+ *
+ * Appends an event before the specified event, or if it isn't in
+ * the queue, onto the tail of the event queue.
+ *
+ * Returns: the newly appended list node.
+ *
+ * Since: 2.16
+ */
+GList*
+_gdk_event_queue_insert_before (GdkDisplay *display,
+ GdkEvent *sibling,
+ GdkEvent *event)
+{
+ GList *next = g_list_find (display->queued_events, sibling);
+ if (next)
+ {
+ display->queued_events = g_list_insert_before (display->queued_events, next, event);
+ return next->prev;
+ }
+ else
+ return _gdk_event_queue_append (display, event);
+}
+
+/**
+ * _gdk_event_queue_remove_link:
+ * @display: a #GdkDisplay
+ * @node: node to remove
+ *
+ * Removes a specified list node from the event queue.
+ **/
void
-gdk_event_queue_remove_link (GList *node)
+_gdk_event_queue_remove_link (GdkDisplay *display,
+ GList *node)
{
if (node->prev)
node->prev->next = node->next;
else
- gdk_queued_events = node->next;
+ display->queued_events = node->next;
if (node->next)
node->next->prev = node->prev;
else
- gdk_queued_tail = node->prev;
+ display->queued_tail = node->prev;
}
-/*************************************************************
- * gdk_event_queue_append:
- * Append an event onto the tail of the event queue.
- * arguments:
- * event: Event to append.
- * results:
- *************************************************************/
-
-void
-gdk_event_queue_append (GdkEvent *event)
+/**
+ * _gdk_event_unqueue:
+ * @display: a #GdkDisplay
+ *
+ * Removes and returns the first event from the event
+ * queue that is not still being filled in.
+ *
+ * Return value: the event, or %NULL. Ownership is transferred
+ * to the caller.
+ **/
+GdkEvent*
+_gdk_event_unqueue (GdkDisplay *display)
{
- gdk_queued_tail = g_list_append (gdk_queued_tail, event);
-
- if (!gdk_queued_events)
- gdk_queued_events = gdk_queued_tail;
- else
- gdk_queued_tail = gdk_queued_tail->next;
+ GdkEvent *event = NULL;
+ GList *tmp_list;
+
+ tmp_list = _gdk_event_queue_find_first (display);
+
+ if (tmp_list)
+ {
+ event = tmp_list->data;
+ _gdk_event_queue_remove_link (display, tmp_list);
+ g_list_free_1 (tmp_list);
+ }
+
+ return event;
}
-/*************************************************************
+/**
* gdk_event_handler_set:
- *
- * arguments:
- * func: Callback function to be called for each event.
- * data: Data supplied to the function
- * notify: function called when function is no longer needed
+ * @func: the function to call to handle events from GDK.
+ * @data: user data to pass to the function.
+ * @notify: the function to call when the handler function is removed, i.e. when
+ * gdk_event_handler_set() is called with another event handler.
*
- * results:
- *************************************************************/
-
+ * Sets the function to call to handle all events from GDK.
+ *
+ * Note that GTK+ uses this to install its own event handler, so it is
+ * usually not useful for GTK+ applications. (Although an application
+ * can call this function then call gtk_main_do_event() to pass
+ * events to GTK+.)
+ **/
void
gdk_event_handler_set (GdkEventFunc func,
gpointer data,
GDestroyNotify notify)
{
- if (gdk_event_notify)
- (*gdk_event_notify) (gdk_event_data);
+ if (_gdk_event_notify)
+ (*_gdk_event_notify) (_gdk_event_data);
- gdk_event_func = func;
- gdk_event_data = data;
- gdk_event_notify = notify;
+ _gdk_event_func = func;
+ _gdk_event_data = data;
+ _gdk_event_notify = notify;
}
-/*
- *--------------------------------------------------------------
- * gdk_event_get
- *
- * Gets the next event.
- *
- * Arguments:
- *
- * Results:
- * If an event is waiting that we care about, returns
- * a pointer to that event, to be freed with gdk_event_free.
- * Otherwise, returns NULL.
- *
- * Side effects:
- *
- *--------------------------------------------------------------
- */
-
+/**
+ * gdk_event_get:
+ *
+ * Checks all open displays for a #GdkEvent to process,to be processed
+ * on, fetching events from the windowing system if necessary.
+ * See gdk_display_get_event().
+ *
+ * Return value: the next #GdkEvent to be processed, or %NULL if no events
+ * are pending. The returned #GdkEvent should be freed with gdk_event_free().
+ **/
GdkEvent*
gdk_event_get (void)
{
- gdk_events_queue ();
+ GSList *tmp_list;
+
+ for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
+ {
+ GdkEvent *event = gdk_display_get_event (tmp_list->data);
+ if (event)
+ return event;
+ }
- return gdk_event_unqueue ();
+ return NULL;
}
-/*
- *--------------------------------------------------------------
- * gdk_event_peek
- *
- * Gets the next event.
- *
- * Arguments:
- *
- * Results:
- * If an event is waiting that we care about, returns
- * a copy of that event, but does not remove it from
- * the queue. The pointer is to be freed with gdk_event_free.
- * Otherwise, returns NULL.
- *
- * Side effects:
+/**
+ * gdk_event_peek:
*
- *--------------------------------------------------------------
- */
-
+ * If there is an event waiting in the event queue of some open
+ * display, returns a copy of it. See gdk_display_peek_event().
+ *
+ * Return value: a copy of the first #GdkEvent on some event queue, or %NULL if no
+ * events are in any queues. The returned #GdkEvent should be freed with
+ * gdk_event_free().
+ **/
GdkEvent*
gdk_event_peek (void)
{
- GList *tmp_list;
+ GSList *tmp_list;
- tmp_list = gdk_event_queue_find_first ();
-
- if (tmp_list)
- return gdk_event_copy (tmp_list->data);
- else
- return NULL;
+ for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
+ {
+ GdkEvent *event = gdk_display_peek_event (tmp_list->data);
+ if (event)
+ return event;
+ }
+
+ return NULL;
}
+/**
+ * gdk_event_put:
+ * @event: a #GdkEvent.
+ *
+ * Appends a copy of the given event onto the front of the event
+ * queue for event->any.window's display, or the default event
+ * queue if event->any.window is %NULL. See gdk_display_put_event().
+ **/
void
-gdk_event_put (GdkEvent *event)
+gdk_event_put (const GdkEvent *event)
{
- GdkEvent *new_event;
+ GdkDisplay *display;
g_return_if_fail (event != NULL);
-
- new_event = gdk_event_copy (event);
- gdk_event_queue_append (new_event);
-}
+ if (event->any.window)
+ display = gdk_drawable_get_display (event->any.window);
+ else
+ {
+ GDK_NOTE (MULTIHEAD,
+ g_message ("Falling back to default display for gdk_event_put()"));
+ display = gdk_display_get_default ();
+ }
-/*
- *--------------------------------------------------------------
- * gdk_event_copy
- *
- * Copy a event structure into new storage.
- *
- * Arguments:
- * "event" is the event struct to copy.
- *
- * Results:
- * A new event structure. Free it with gdk_event_free.
- *
- * Side effects:
- * The reference count of the window in the event is increased.
- *
- *--------------------------------------------------------------
- */
+ gdk_display_put_event (display, event);
+}
-static GMemChunk *event_chunk = NULL;
+static GHashTable *event_hash = NULL;
+/**
+ * gdk_event_new:
+ * @type: a #GdkEventType
+ *
+ * Creates a new event of the given type. All fields are set to 0.
+ *
+ * Return value: a newly-allocated #GdkEvent. The returned #GdkEvent
+ * should be freed with gdk_event_free().
+ *
+ * Since: 2.2
+ **/
GdkEvent*
-gdk_event_new (void)
+gdk_event_new (GdkEventType type)
{
- GdkEventPrivate *new_event;
+ GdkEventPrivate *new_private;
+ GdkEvent *new_event;
- if (event_chunk == NULL)
- event_chunk = g_mem_chunk_new ("events",
- sizeof (GdkEventPrivate),
- 4096,
- G_ALLOC_AND_FREE);
+ if (!event_hash)
+ event_hash = g_hash_table_new (g_direct_hash, NULL);
+
+ new_private = g_slice_new0 (GdkEventPrivate);
- new_event = g_chunk_new (GdkEventPrivate, event_chunk);
- new_event->flags = 0;
+ new_private->flags = 0;
+ new_private->screen = NULL;
+
+ g_hash_table_insert (event_hash, new_private, GUINT_TO_POINTER (1));
+
+ new_event = (GdkEvent *) new_private;
+
+ new_event->any.type = type;
+
+ /*
+ * Bytewise 0 initialization is reasonable for most of the
+ * current event types. Explicitely initialize double fields
+ * since I trust bytewise 0 == 0. less than for integers
+ * or pointers.
+ */
+ switch (type)
+ {
+ case GDK_MOTION_NOTIFY:
+ new_event->motion.x = 0.;
+ new_event->motion.y = 0.;
+ new_event->motion.x_root = 0.;
+ new_event->motion.y_root = 0.;
+ break;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ new_event->button.x = 0.;
+ new_event->button.y = 0.;
+ new_event->button.x_root = 0.;
+ new_event->button.y_root = 0.;
+ break;
+ case GDK_SCROLL:
+ new_event->scroll.x = 0.;
+ new_event->scroll.y = 0.;
+ new_event->scroll.x_root = 0.;
+ new_event->scroll.y_root = 0.;
+ break;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ new_event->crossing.x = 0.;
+ new_event->crossing.y = 0.;
+ new_event->crossing.x_root = 0.;
+ new_event->crossing.y_root = 0.;
+ break;
+ default:
+ break;
+ }
- return (GdkEvent*) new_event;
+ return new_event;
}
+static gboolean
+gdk_event_is_allocated (const GdkEvent *event)
+{
+ if (event_hash)
+ return g_hash_table_lookup (event_hash, event) != NULL;
+
+ return FALSE;
+}
+
+/**
+ * gdk_event_copy:
+ * @event: a #GdkEvent
+ *
+ * Copies a #GdkEvent, copying or incrementing the reference count of the
+ * resources associated with it (e.g. #GdkWindow's and strings).
+ *
+ * Return value: a copy of @event. The returned #GdkEvent should be freed with
+ * gdk_event_free().
+ **/
GdkEvent*
-gdk_event_copy (GdkEvent *event)
+gdk_event_copy (const GdkEvent *event)
{
+ GdkEventPrivate *new_private;
GdkEvent *new_event;
g_return_val_if_fail (event != NULL, NULL);
- new_event = gdk_event_new ();
-
+ new_event = gdk_event_new (GDK_NOTHING);
+ new_private = (GdkEventPrivate *)new_event;
+
*new_event = *event;
if (new_event->any.window)
- gdk_window_ref (new_event->any.window);
+ g_object_ref (new_event->any.window);
+
+ if (gdk_event_is_allocated (event))
+ {
+ GdkEventPrivate *private = (GdkEventPrivate *)event;
+
+ new_private->screen = private->screen;
+ new_private->device = private->device;
+ }
switch (event->any.type)
{
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
if (event->crossing.subwindow != NULL)
- gdk_window_ref (event->crossing.subwindow);
+ g_object_ref (event->crossing.subwindow);
break;
case GDK_DRAG_ENTER:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
- gdk_drag_context_ref (event->dnd.context);
+ g_object_ref (event->dnd.context);
+ break;
+
+ case GDK_EXPOSE:
+ case GDK_DAMAGE:
+ if (event->expose.region)
+ new_event->expose.region = cairo_region_copy (event->expose.region);
+ break;
+
+ case GDK_SETTING:
+ new_event->setting.name = g_strdup (new_event->setting.name);
+ break;
+
+ case GDK_BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ if (event->button.axes)
+ new_event->button.axes = g_memdup (event->button.axes,
+ sizeof (gdouble) * event->button.device->num_axes);
+ break;
+
+ case GDK_MOTION_NOTIFY:
+ if (event->motion.axes)
+ new_event->motion.axes = g_memdup (event->motion.axes,
+ sizeof (gdouble) * event->motion.device->num_axes);
+
break;
default:
break;
}
+
+ if (gdk_event_is_allocated (event))
+ _gdk_windowing_event_data_copy (event, new_event);
return new_event;
}
-/*
- *--------------------------------------------------------------
- * gdk_event_free
- *
- * Free a event structure obtained from gdk_event_copy. Do not use
- * with other event structures.
- *
- * Arguments:
- * "event" is the event struct to free.
- *
- * Results:
- *
- * Side effects:
- * The reference count of the window in the event is decreased and
- * might be freed, too.
- *
- *-------------------------------------------------------------- */
-
+/**
+ * gdk_event_free:
+ * @event: a #GdkEvent.
+ *
+ * Frees a #GdkEvent, freeing or decrementing any resources associated with it.
+ * Note that this function should only be called with events returned from
+ * functions such as gdk_event_peek(), gdk_event_get(), gdk_event_copy()
+ * and gdk_event_new().
+ **/
void
gdk_event_free (GdkEvent *event)
{
g_return_if_fail (event != NULL);
- g_assert (event_chunk != NULL); /* paranoid */
-
if (event->any.window)
- gdk_window_unref (event->any.window);
+ g_object_unref (event->any.window);
switch (event->any.type)
{
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
if (event->crossing.subwindow != NULL)
- gdk_window_unref (event->crossing.subwindow);
+ g_object_unref (event->crossing.subwindow);
break;
case GDK_DRAG_ENTER:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
- gdk_drag_context_unref (event->dnd.context);
+ g_object_unref (event->dnd.context);
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
- if (event->button.axes)
- g_free (event->button.axes);
+ g_free (event->button.axes);
break;
-
+
+ case GDK_EXPOSE:
+ case GDK_DAMAGE:
+ if (event->expose.region)
+ cairo_region_destroy (event->expose.region);
+ break;
+
case GDK_MOTION_NOTIFY:
- if (event->motion.axes)
- g_free (event->motion.axes);
+ g_free (event->motion.axes);
+ break;
+
+ case GDK_SETTING:
+ g_free (event->setting.name);
break;
default:
break;
}
-
- g_mem_chunk_free (event_chunk, event);
+
+ _gdk_windowing_event_data_free (event);
+
+ g_hash_table_remove (event_hash, event);
+ g_slice_free (GdkEventPrivate, (GdkEventPrivate*) event);
}
-/*
- *--------------------------------------------------------------
+/**
* gdk_event_get_time:
- * Get the timestamp from an event.
- * arguments:
- * event:
- * results:
- * The event's time stamp, if it has one, otherwise
- * GDK_CURRENT_TIME.
- *--------------------------------------------------------------
- */
-
+ * @event: a #GdkEvent
+ *
+ * Returns the time stamp from @event, if there is one; otherwise
+ * returns #GDK_CURRENT_TIME. If @event is %NULL, returns #GDK_CURRENT_TIME.
+ *
+ * Return value: time stamp field from @event
+ **/
guint32
-gdk_event_get_time (GdkEvent *event)
+gdk_event_get_time (const GdkEvent *event)
{
if (event)
switch (event->type)
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
- case GDK_SCROLL:
return event->button.time;
+ case GDK_SCROLL:
+ return event->scroll.time;
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
return event->key.time;
case GDK_DROP_START:
case GDK_DROP_FINISHED:
return event->dnd.time;
- default: /* use current time */
- break;
+ case GDK_CLIENT_EVENT:
+ case GDK_VISIBILITY_NOTIFY:
+ case GDK_NO_EXPOSE:
+ case GDK_CONFIGURE:
+ case GDK_FOCUS_CHANGE:
+ case GDK_NOTHING:
+ case GDK_DAMAGE:
+ case GDK_DELETE:
+ case GDK_DESTROY:
+ case GDK_EXPOSE:
+ case GDK_MAP:
+ case GDK_UNMAP:
+ case GDK_WINDOW_STATE:
+ case GDK_SETTING:
+ case GDK_OWNER_CHANGE:
+ case GDK_GRAB_BROKEN:
+ case GDK_EVENT_LAST:
+ /* return current time */
+ break;
}
return GDK_CURRENT_TIME;
}
/**
- * gdk_event_get_axis:
- * @event: a #GdkEvent
- * @axis_use: the axis use to look for
- * @value: location to store the value found
+ * gdk_event_get_state:
+ * @event: a #GdkEvent or NULL
+ * @state: (out): return location for state
*
- * Extract the axis value for a particular axis use from
- * an event structure.
+ * If the event contains a "state" field, puts that field in @state. Otherwise
+ * stores an empty state (0). Returns %TRUE if there was a state field
+ * in the event. @event may be %NULL, in which case it's treated
+ * as if the event had no state field.
*
- * Return value: %TRUE if the specified axis was found, otherwise %FALSE
+ * Return value: %TRUE if there was a state field in the event
**/
gboolean
-gdk_event_get_axis (GdkEvent *event,
- GdkAxisUse axis_use,
- gdouble *value)
+gdk_event_get_state (const GdkEvent *event,
+ GdkModifierType *state)
{
- gdouble *axes;
- GdkDevice *device;
+ g_return_val_if_fail (state != NULL, FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- if (axis_use == GDK_AXIS_X || axis_use == GDK_AXIS_Y)
- {
- gdouble x, y;
-
- switch (event->type)
- {
- case GDK_MOTION_NOTIFY:
- x = event->motion.x;
- y = event->motion.y;
- break;
- case GDK_SCROLL:
- x = event->scroll.x;
- y = event->scroll.y;
- break;
- case GDK_BUTTON_PRESS:
- case GDK_BUTTON_RELEASE:
- x = event->button.x;
- y = event->button.y;
- break;
- case GDK_ENTER_NOTIFY:
- case GDK_LEAVE_NOTIFY:
- x = event->crossing.x;
- y = event->crossing.y;
- break;
-
- default:
+ if (event)
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ *state = event->motion.state;
+ return TRUE;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ *state = event->button.state;
+ return TRUE;
+ case GDK_SCROLL:
+ *state = event->scroll.state;
+ return TRUE;
+ case GDK_KEY_PRESS:
+ case GDK_KEY_RELEASE:
+ *state = event->key.state;
+ return TRUE;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ *state = event->crossing.state;
+ return TRUE;
+ case GDK_PROPERTY_NOTIFY:
+ *state = event->property.state;
+ return TRUE;
+ case GDK_VISIBILITY_NOTIFY:
+ case GDK_CLIENT_EVENT:
+ case GDK_NO_EXPOSE:
+ case GDK_CONFIGURE:
+ case GDK_FOCUS_CHANGE:
+ case GDK_SELECTION_CLEAR:
+ case GDK_SELECTION_REQUEST:
+ case GDK_SELECTION_NOTIFY:
+ case GDK_PROXIMITY_IN:
+ case GDK_PROXIMITY_OUT:
+ case GDK_DAMAGE:
+ case GDK_DRAG_ENTER:
+ case GDK_DRAG_LEAVE:
+ case GDK_DRAG_MOTION:
+ case GDK_DRAG_STATUS:
+ case GDK_DROP_START:
+ case GDK_DROP_FINISHED:
+ case GDK_NOTHING:
+ case GDK_DELETE:
+ case GDK_DESTROY:
+ case GDK_EXPOSE:
+ case GDK_MAP:
+ case GDK_UNMAP:
+ case GDK_WINDOW_STATE:
+ case GDK_SETTING:
+ case GDK_OWNER_CHANGE:
+ case GDK_GRAB_BROKEN:
+ case GDK_EVENT_LAST:
+ /* no state field */
+ break;
+ }
+
+ *state = 0;
+ return FALSE;
+}
+
+/**
+ * gdk_event_get_coords:
+ * @event: a #GdkEvent
+ * @x_win: (out): location to put event window x coordinate
+ * @y_win: (out): location to put event window y coordinate
+ *
+ * Extract the event window relative x/y coordinates from an event.
+ *
+ * Return value: %TRUE if the event delivered event window coordinates
+ **/
+gboolean
+gdk_event_get_coords (const GdkEvent *event,
+ gdouble *x_win,
+ gdouble *y_win)
+{
+ gdouble x = 0, y = 0;
+ gboolean fetched = TRUE;
+
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ switch (event->type)
+ {
+ case GDK_CONFIGURE:
+ x = event->configure.x;
+ y = event->configure.y;
+ break;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ x = event->crossing.x;
+ y = event->crossing.y;
+ break;
+ case GDK_SCROLL:
+ x = event->scroll.x;
+ y = event->scroll.y;
+ break;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ x = event->button.x;
+ y = event->button.y;
+ break;
+ case GDK_MOTION_NOTIFY:
+ x = event->motion.x;
+ y = event->motion.y;
+ break;
+ default:
+ fetched = FALSE;
+ break;
+ }
+
+ if (x_win)
+ *x_win = x;
+ if (y_win)
+ *y_win = y;
+
+ return fetched;
+}
+
+/**
+ * gdk_event_get_root_coords:
+ * @event: a #GdkEvent
+ * @x_root: (out): location to put root window x coordinate
+ * @y_root: (out): location to put root window y coordinate
+ *
+ * Extract the root window relative x/y coordinates from an event.
+ *
+ * Return value: %TRUE if the event delivered root window coordinates
+ **/
+gboolean
+gdk_event_get_root_coords (const GdkEvent *event,
+ gdouble *x_root,
+ gdouble *y_root)
+{
+ gdouble x = 0, y = 0;
+ gboolean fetched = TRUE;
+
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ x = event->motion.x_root;
+ y = event->motion.y_root;
+ break;
+ case GDK_SCROLL:
+ x = event->scroll.x_root;
+ y = event->scroll.y_root;
+ break;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ x = event->button.x_root;
+ y = event->button.y_root;
+ break;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ x = event->crossing.x_root;
+ y = event->crossing.y_root;
+ break;
+ case GDK_DRAG_ENTER:
+ case GDK_DRAG_LEAVE:
+ case GDK_DRAG_MOTION:
+ case GDK_DRAG_STATUS:
+ case GDK_DROP_START:
+ case GDK_DROP_FINISHED:
+ x = event->dnd.x_root;
+ y = event->dnd.y_root;
+ break;
+ default:
+ fetched = FALSE;
+ break;
+ }
+
+ if (x_root)
+ *x_root = x;
+ if (y_root)
+ *y_root = y;
+
+ return fetched;
+}
+
+/**
+ * gdk_event_get_axis:
+ * @event: a #GdkEvent
+ * @axis_use: (out): the axis use to look for
+ * @value: (out): location to store the value found
+ *
+ * Extract the axis value for a particular axis use from
+ * an event structure.
+ *
+ * Return value: %TRUE if the specified axis was found, otherwise %FALSE
+ **/
+gboolean
+gdk_event_get_axis (const GdkEvent *event,
+ GdkAxisUse axis_use,
+ gdouble *value)
+{
+ gdouble *axes;
+ GdkDevice *device;
+
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ if (axis_use == GDK_AXIS_X || axis_use == GDK_AXIS_Y)
+ {
+ gdouble x, y;
+
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ x = event->motion.x;
+ y = event->motion.y;
+ break;
+ case GDK_SCROLL:
+ x = event->scroll.x;
+ y = event->scroll.y;
+ break;
+ case GDK_BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ x = event->button.x;
+ y = event->button.y;
+ break;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ x = event->crossing.x;
+ y = event->crossing.y;
+ break;
+
+ default:
return FALSE;
}
return gdk_device_get_axis (device, axes, axis_use, value);
}
-/*
- *--------------------------------------------------------------
- * gdk_set_show_events
+/**
+ * gdk_event_set_device:
+ * @event: a #GdkEvent
+ * @device: a #GdkDevice
*
- * Turns on/off the showing of events.
+ * Sets the device for @event to @device. The event must
+ * have been allocated by GTK+, for instance, by
+ * gdk_event_copy().
*
- * Arguments:
- * "show_events" is a boolean describing whether or
- * not to show the events gdk receives.
+ * Since: 3.0
+ **/
+void
+gdk_event_set_device (GdkEvent *event,
+ GdkDevice *device)
+{
+ GdkEventPrivate *private;
+
+ g_return_if_fail (gdk_event_is_allocated (event));
+
+ private = (GdkEventPrivate *) event;
+
+ private->device = device;
+
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ event->motion.device = device;
+ break;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ event->button.device = device;
+ break;
+ case GDK_SCROLL:
+ event->scroll.device = device;
+ break;
+ case GDK_PROXIMITY_IN:
+ case GDK_PROXIMITY_OUT:
+ event->proximity.device = device;
+ break;
+ default:
+ break;
+ }
+}
+
+/**
+ * gdk_event_get_device:
+ * @event: a #GdkEvent.
*
- * Results:
+ * If the event contains a "device" field, this function will return
+ * it, else it will return %NULL.
*
- * Side effects:
- * When "show_events" is TRUE, calls to "gdk_event_get"
- * will output debugging informatin regarding the event
- * received to stdout.
+ * Returns: a #GdkDevice, or %NULL.
*
- *--------------------------------------------------------------
- */
-
-void
-gdk_set_show_events (gboolean show_events)
+ * Since: 3.0
+ **/
+GdkDevice *
+gdk_event_get_device (const GdkEvent *event)
{
- if (show_events)
- gdk_debug_flags |= GDK_DEBUG_EVENTS;
- else
- gdk_debug_flags &= ~GDK_DEBUG_EVENTS;
+ g_return_val_if_fail (event != NULL, NULL);
+
+ if (gdk_event_is_allocated (event))
+ {
+ GdkEventPrivate *private = (GdkEventPrivate *) event;
+
+ if (private->device)
+ return private->device;
+ }
+
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ return event->motion.device;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ return event->button.device;
+ case GDK_SCROLL:
+ return event->scroll.device;
+ case GDK_PROXIMITY_IN:
+ case GDK_PROXIMITY_OUT:
+ return event->proximity.device;
+ default:
+ break;
+ }
+
+ /* Fallback if event has no device set */
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ case GDK_FOCUS_CHANGE:
+ case GDK_PROXIMITY_IN:
+ case GDK_PROXIMITY_OUT:
+ case GDK_DRAG_ENTER:
+ case GDK_DRAG_LEAVE:
+ case GDK_DRAG_MOTION:
+ case GDK_DRAG_STATUS:
+ case GDK_DROP_START:
+ case GDK_DROP_FINISHED:
+ case GDK_SCROLL:
+ case GDK_GRAB_BROKEN:
+ case GDK_KEY_PRESS:
+ case GDK_KEY_RELEASE:
+ {
+ GdkDisplay *display;
+ GdkDevice *core_pointer;
+
+ g_warning ("Event with type %d not holding a GdkDevice. "
+ "It is most likely synthesized outside Gdk/GTK+\n",
+ event->type);
+
+ display = gdk_drawable_get_display (event->any.window);
+ core_pointer = gdk_display_get_core_pointer (display);
+
+ if (event->type == GDK_KEY_PRESS ||
+ event->type == GDK_KEY_RELEASE)
+ return gdk_device_get_associated_device (core_pointer);
+ else
+ return core_pointer;
+ }
+ break;
+ default:
+ return NULL;
+ }
}
-gboolean
-gdk_get_show_events (void)
+/**
+ * gdk_event_request_motions:
+ * @event: a valid #GdkEvent
+ *
+ * Request more motion notifies if @event is a motion notify hint event.
+ * This function should be used instead of gdk_window_get_pointer() to
+ * request further motion notifies, because it also works for extension
+ * events where motion notifies are provided for devices other than the
+ * core pointer. Coordinate extraction, processing and requesting more
+ * motion events from a %GDK_MOTION_NOTIFY event usually works like this:
+ *
+ * |[
+ * {
+ * /* motion_event handler */
+ * x = motion_event->x;
+ * y = motion_event->y;
+ * /* handle (x,y) motion */
+ * gdk_event_request_motions (motion_event); /* handles is_hint events */
+ * }
+ * ]|
+ *
+ * Since: 2.12
+ **/
+void
+gdk_event_request_motions (const GdkEventMotion *event)
{
- return (gdk_debug_flags & GDK_DEBUG_EVENTS) != 0;
+ GdkDisplay *display;
+
+ g_return_if_fail (event != NULL);
+
+ if (event->type == GDK_MOTION_NOTIFY && event->is_hint)
+ {
+ gdk_device_get_state (event->device, event->window, NULL, NULL);
+
+ display = gdk_drawable_get_display (event->window);
+ _gdk_display_enable_motion_hints (display, event->device);
+ }
}
-static void
-gdk_io_destroy (gpointer data)
+static gboolean
+gdk_events_get_axis_distances (GdkEvent *event1,
+ GdkEvent *event2,
+ gdouble *x_distance,
+ gdouble *y_distance,
+ gdouble *distance)
{
- GdkIOClosure *closure = data;
+ gdouble x1, x2, y1, y2;
+ gdouble xd, yd;
- if (closure->notify)
- closure->notify (closure->data);
+ if (!gdk_event_get_coords (event1, &x1, &y1) ||
+ !gdk_event_get_coords (event2, &x2, &y2))
+ return FALSE;
- g_free (closure);
-}
+ xd = x2 - x1;
+ yd = y2 - y1;
-/* What do we do with G_IO_NVAL?
- */
-#define READ_CONDITION (G_IO_IN | G_IO_HUP | G_IO_ERR)
-#define WRITE_CONDITION (G_IO_OUT | G_IO_ERR)
-#define EXCEPTION_CONDITION (G_IO_PRI)
+ if (x_distance)
+ *x_distance = xd;
-static gboolean
-gdk_io_invoke (GIOChannel *source,
- GIOCondition condition,
- gpointer data)
-{
- GdkIOClosure *closure = data;
- GdkInputCondition gdk_cond = 0;
+ if (y_distance)
+ *y_distance = yd;
- if (condition & READ_CONDITION)
- gdk_cond |= GDK_INPUT_READ;
- if (condition & WRITE_CONDITION)
- gdk_cond |= GDK_INPUT_WRITE;
- if (condition & EXCEPTION_CONDITION)
- gdk_cond |= GDK_INPUT_EXCEPTION;
-
- if (closure->condition & gdk_cond)
- closure->function (closure->data, g_io_channel_unix_get_fd (source), gdk_cond);
+ if (distance)
+ *distance = sqrt ((xd * xd) + (yd * yd));
return TRUE;
}
-gint
-gdk_input_add_full (gint source,
- GdkInputCondition condition,
- GdkInputFunction function,
- gpointer data,
- GdkDestroyNotify destroy)
+/**
+ * gdk_events_get_distance:
+ * @event1: first #GdkEvent
+ * @event2: second #GdkEvent
+ * @distance: return location for the distance
+ *
+ * If both events have X/Y information, the distance between both coordinates
+ * (as in a straight line going from @event1 to @event2) will be returned.
+ *
+ * Returns: %TRUE if the distance could be calculated.
+ *
+ * Since: 3.0
+ **/
+gboolean
+gdk_events_get_distance (GdkEvent *event1,
+ GdkEvent *event2,
+ gdouble *distance)
+{
+ return gdk_events_get_axis_distances (event1, event2,
+ NULL, NULL,
+ distance);
+}
+
+/**
+ * gdk_events_get_angle:
+ * @event1: first #GdkEvent
+ * @event2: second #GdkEvent
+ * @angle: return location for the relative angle between both events
+ *
+ * If both events contain X/Y information, this function will return %TRUE
+ * and return in @angle the relative angle from @event1 to @event2. The rotation
+ * direction for positive angles is from the positive X axis towards the positive
+ * Y axis.
+ *
+ * Returns: %TRUE if the angle could be calculated.
+ *
+ * Since: 3.0
+ **/
+gboolean
+gdk_events_get_angle (GdkEvent *event1,
+ GdkEvent *event2,
+ gdouble *angle)
{
- guint result;
- GdkIOClosure *closure = g_new (GdkIOClosure, 1);
- GIOChannel *channel;
- GIOCondition cond = 0;
+ gdouble x_distance, y_distance, distance;
+
+ if (!gdk_events_get_axis_distances (event1, event2,
+ &x_distance, &y_distance,
+ &distance))
+ return FALSE;
+
+ if (angle)
+ {
+ *angle = atan2 (x_distance, y_distance);
- closure->function = function;
- closure->condition = condition;
- closure->notify = destroy;
- closure->data = data;
+ /* Invert angle */
+ *angle = (2 * G_PI) - *angle;
- if (condition & GDK_INPUT_READ)
- cond |= READ_CONDITION;
- if (condition & GDK_INPUT_WRITE)
- cond |= WRITE_CONDITION;
- if (condition & GDK_INPUT_EXCEPTION)
- cond |= EXCEPTION_CONDITION;
+ /* Shift it 90° */
+ *angle += G_PI / 2;
- channel = g_io_channel_unix_new (source);
- result = g_io_add_watch_full (channel, G_PRIORITY_DEFAULT, cond,
- gdk_io_invoke,
- closure, gdk_io_destroy);
- g_io_channel_unref (channel);
+ /* And constraint it to 0°-360° */
+ *angle = fmod (*angle, 2 * G_PI);
+ }
- return result;
+ return TRUE;
}
-gint
-gdk_input_add (gint source,
- GdkInputCondition condition,
- GdkInputFunction function,
- gpointer data)
+/**
+ * gdk_events_get_center:
+ * @event1: first #GdkEvent
+ * @event2: second #GdkEvent
+ * @x: (out): return location for the X coordinate of the center
+ * @y: (out): return location for the Y coordinate of the center
+ *
+ * If both events contain X/Y information, the center of both coordinates
+ * will be returned in @x and @y.
+ *
+ * Returns: %TRUE if the center could be calculated.
+ *
+ * Since: 3.0
+ **/
+gboolean
+gdk_events_get_center (GdkEvent *event1,
+ GdkEvent *event2,
+ gdouble *x,
+ gdouble *y)
{
- return gdk_input_add_full (source, condition, function, data, NULL);
+ gdouble x1, x2, y1, y2;
+
+ if (!gdk_event_get_coords (event1, &x1, &y1) ||
+ !gdk_event_get_coords (event2, &x2, &y2))
+ return FALSE;
+
+ if (x)
+ *x = (x2 + x1) / 2;
+
+ if (y)
+ *y = (y2 + y1) / 2;
+
+ return TRUE;
}
+/**
+ * gdk_event_set_screen:
+ * @event: a #GdkEvent
+ * @screen: a #GdkScreen
+ *
+ * Sets the screen for @event to @screen. The event must
+ * have been allocated by GTK+, for instance, by
+ * gdk_event_copy().
+ *
+ * Since: 2.2
+ **/
void
-gdk_input_remove (gint tag)
+gdk_event_set_screen (GdkEvent *event,
+ GdkScreen *screen)
{
- g_source_remove (tag);
+ GdkEventPrivate *private;
+
+ g_return_if_fail (gdk_event_is_allocated (event));
+
+ private = (GdkEventPrivate *)event;
+
+ private->screen = screen;
}
-GdkEvent*
-gdk_event_unqueue (void)
+/**
+ * gdk_event_get_screen:
+ * @event: a #GdkEvent
+ *
+ * Returns the screen for the event. The screen is
+ * typically the screen for <literal>event->any.window</literal>, but
+ * for events such as mouse events, it is the screen
+ * where the pointer was when the event occurs -
+ * that is, the screen which has the root window
+ * to which <literal>event->motion.x_root</literal> and
+ * <literal>event->motion.y_root</literal> are relative.
+ *
+ * Return value: the screen for the event
+ *
+ * Since: 2.2
+ **/
+GdkScreen *
+gdk_event_get_screen (const GdkEvent *event)
{
- GdkEvent *event = NULL;
- GList *tmp_list;
-
- tmp_list = gdk_event_queue_find_first ();
-
- if (tmp_list)
+ if (gdk_event_is_allocated (event))
{
- event = tmp_list->data;
- gdk_event_queue_remove_link (tmp_list);
- g_list_free_1 (tmp_list);
+ GdkEventPrivate *private = (GdkEventPrivate *)event;
+
+ if (private->screen)
+ return private->screen;
}
- return event;
+ if (event->any.window)
+ return gdk_drawable_get_screen (event->any.window);
+
+ return NULL;
}
+/**
+ * gdk_set_show_events:
+ * @show_events: %TRUE to output event debugging information.
+ *
+ * Sets whether a trace of received events is output.
+ * Note that GTK+ must be compiled with debugging (that is,
+ * configured using the <option>--enable-debug</option> option)
+ * to use this option.
+ **/
void
-gdk_synthesize_click (GdkEvent *event,
- gint nclicks)
+gdk_set_show_events (gboolean show_events)
+{
+ if (show_events)
+ _gdk_debug_flags |= GDK_DEBUG_EVENTS;
+ else
+ _gdk_debug_flags &= ~GDK_DEBUG_EVENTS;
+}
+
+/**
+ * gdk_get_show_events:
+ *
+ * Gets whether event debugging output is enabled.
+ *
+ * Return value: %TRUE if event debugging output is enabled.
+ **/
+gboolean
+gdk_get_show_events (void)
+{
+ return (_gdk_debug_flags & GDK_DEBUG_EVENTS) != 0;
+}
+
+/* What do we do with G_IO_NVAL?
+ */
+#define READ_CONDITION (G_IO_IN | G_IO_HUP | G_IO_ERR)
+#define WRITE_CONDITION (G_IO_OUT | G_IO_ERR)
+#define EXCEPTION_CONDITION (G_IO_PRI)
+
+static void
+gdk_synthesize_click (GdkDisplay *display,
+ GdkEvent *event,
+ gint nclicks)
{
GdkEvent temp_event;
+ GdkEvent *event_copy;
+ GList *link;
g_return_if_fail (event != NULL);
temp_event = *event;
temp_event.type = (nclicks == 2) ? GDK_2BUTTON_PRESS : GDK_3BUTTON_PRESS;
-
- gdk_event_put (&temp_event);
+
+ event_copy = gdk_event_copy (&temp_event);
+ link = _gdk_event_queue_append (display, event_copy);
}
void
-gdk_event_button_generate (GdkEvent *event)
+_gdk_event_button_generate (GdkDisplay *display,
+ GdkEvent *event)
{
- if ((event->button.time < (button_click_time[1] + TRIPLE_CLICK_TIME)) &&
- (event->button.window == button_window[1]) &&
- (event->button.button == button_number[1]))
+ GdkMultipleClickInfo *info;
+
+ info = g_hash_table_lookup (display->multiple_click_info, event->button.device);
+
+ if (G_UNLIKELY (!info))
{
- gdk_synthesize_click (event, 3);
-
- button_click_time[1] = 0;
- button_click_time[0] = 0;
- button_window[1] = NULL;
- button_window[0] = 0;
- button_number[1] = -1;
- button_number[0] = -1;
+ info = g_new0 (GdkMultipleClickInfo, 1);
+ info->button_number[0] = info->button_number[1] = -1;
+
+ g_hash_table_insert (display->multiple_click_info,
+ event->button.device, info);
}
- else if ((event->button.time < (button_click_time[0] + DOUBLE_CLICK_TIME)) &&
- (event->button.window == button_window[0]) &&
- (event->button.button == button_number[0]))
+
+ if ((event->button.time < (info->button_click_time[1] + 2 * display->double_click_time)) &&
+ (event->button.window == info->button_window[1]) &&
+ (event->button.button == info->button_number[1]) &&
+ (ABS (event->button.x - info->button_x[1]) <= display->double_click_distance) &&
+ (ABS (event->button.y - info->button_y[1]) <= display->double_click_distance))
{
- gdk_synthesize_click (event, 2);
+ gdk_synthesize_click (display, event, 3);
+
+ info->button_click_time[1] = 0;
+ info->button_click_time[0] = 0;
+ info->button_window[1] = NULL;
+ info->button_window[0] = NULL;
+ info->button_number[1] = -1;
+ info->button_number[0] = -1;
+ info->button_x[0] = info->button_x[1] = 0;
+ info->button_y[0] = info->button_y[1] = 0;
+ }
+ else if ((event->button.time < (info->button_click_time[0] + display->double_click_time)) &&
+ (event->button.window == info->button_window[0]) &&
+ (event->button.button == info->button_number[0]) &&
+ (ABS (event->button.x - info->button_x[0]) <= display->double_click_distance) &&
+ (ABS (event->button.y - info->button_y[0]) <= display->double_click_distance))
+ {
+ gdk_synthesize_click (display, event, 2);
- button_click_time[1] = button_click_time[0];
- button_click_time[0] = event->button.time;
- button_window[1] = button_window[0];
- button_window[0] = event->button.window;
- button_number[1] = button_number[0];
- button_number[0] = event->button.button;
+ info->button_click_time[1] = info->button_click_time[0];
+ info->button_click_time[0] = event->button.time;
+ info->button_window[1] = info->button_window[0];
+ info->button_window[0] = event->button.window;
+ info->button_number[1] = info->button_number[0];
+ info->button_number[0] = event->button.button;
+ info->button_x[1] = info->button_x[0];
+ info->button_x[0] = event->button.x;
+ info->button_y[1] = info->button_y[0];
+ info->button_y[0] = event->button.y;
}
else
{
- button_click_time[1] = 0;
- button_click_time[0] = event->button.time;
- button_window[1] = NULL;
- button_window[0] = event->button.window;
- button_number[1] = -1;
- button_number[0] = event->button.button;
+ info->button_click_time[1] = 0;
+ info->button_click_time[0] = event->button.time;
+ info->button_window[1] = NULL;
+ info->button_window[0] = event->button.window;
+ info->button_number[1] = -1;
+ info->button_number[0] = event->button.button;
+ info->button_x[1] = 0;
+ info->button_x[0] = event->button.x;
+ info->button_y[1] = 0;
+ info->button_y[0] = event->button.y;
}
}
+
+void
+gdk_synthesize_window_state (GdkWindow *window,
+ GdkWindowState unset_flags,
+ GdkWindowState set_flags)
+{
+ GdkEvent temp_event;
+ GdkWindowState old;
+
+ g_return_if_fail (window != NULL);
+
+ temp_event.window_state.window = window;
+ temp_event.window_state.type = GDK_WINDOW_STATE;
+ temp_event.window_state.send_event = FALSE;
+
+ old = ((GdkWindowObject*) temp_event.window_state.window)->state;
+
+ temp_event.window_state.new_window_state = old;
+ temp_event.window_state.new_window_state |= set_flags;
+ temp_event.window_state.new_window_state &= ~unset_flags;
+ temp_event.window_state.changed_mask = temp_event.window_state.new_window_state ^ old;
+
+ if (temp_event.window_state.new_window_state == old)
+ return; /* No actual work to do, nothing changed. */
+
+ /* Actually update the field in GdkWindow, this is sort of an odd
+ * place to do it, but seems like the safest since it ensures we expose no
+ * inconsistent state to the user.
+ */
+
+ ((GdkWindowObject*) window)->state = temp_event.window_state.new_window_state;
+
+ if (temp_event.window_state.changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
+ _gdk_window_update_viewable (window);
+
+ /* We only really send the event to toplevels, since
+ * all the window states don't apply to non-toplevels.
+ * Non-toplevels do use the GDK_WINDOW_STATE_WITHDRAWN flag
+ * internally so we needed to update window->state.
+ */
+ switch (((GdkWindowObject*) window)->window_type)
+ {
+ case GDK_WINDOW_TOPLEVEL:
+ case GDK_WINDOW_DIALOG:
+ case GDK_WINDOW_TEMP: /* ? */
+ gdk_display_put_event (gdk_drawable_get_display (window), &temp_event);
+ break;
+
+ case GDK_WINDOW_FOREIGN:
+ case GDK_WINDOW_ROOT:
+ case GDK_WINDOW_CHILD:
+ break;
+ }
+}
+
+/**
+ * gdk_display_set_double_click_time:
+ * @display: a #GdkDisplay
+ * @msec: double click time in milliseconds (thousandths of a second)
+ *
+ * Sets the double click time (two clicks within this time interval
+ * count as a double click and result in a #GDK_2BUTTON_PRESS event).
+ * Applications should <emphasis>not</emphasis> set this, it is a global
+ * user-configured setting.
+ *
+ * Since: 2.2
+ **/
+void
+gdk_display_set_double_click_time (GdkDisplay *display,
+ guint msec)
+{
+ display->double_click_time = msec;
+}
+
+/**
+ * gdk_set_double_click_time:
+ * @msec: double click time in milliseconds (thousandths of a second)
+ *
+ * Set the double click time for the default display. See
+ * gdk_display_set_double_click_time().
+ * See also gdk_display_set_double_click_distance().
+ * Applications should <emphasis>not</emphasis> set this, it is a
+ * global user-configured setting.
+ **/
+void
+gdk_set_double_click_time (guint msec)
+{
+ gdk_display_set_double_click_time (gdk_display_get_default (), msec);
+}
+
+/**
+ * gdk_display_set_double_click_distance:
+ * @display: a #GdkDisplay
+ * @distance: distance in pixels
+ *
+ * Sets the double click distance (two clicks within this distance
+ * count as a double click and result in a #GDK_2BUTTON_PRESS event).
+ * See also gdk_display_set_double_click_time().
+ * Applications should <emphasis>not</emphasis> set this, it is a global
+ * user-configured setting.
+ *
+ * Since: 2.4
+ **/
+void
+gdk_display_set_double_click_distance (GdkDisplay *display,
+ guint distance)
+{
+ display->double_click_distance = distance;
+}
+
+GType
+gdk_event_get_type (void)
+{
+ static GType our_type = 0;
+
+ if (our_type == 0)
+ our_type = g_boxed_type_register_static (g_intern_static_string ("GdkEvent"),
+ (GBoxedCopyFunc)gdk_event_copy,
+ (GBoxedFreeFunc)gdk_event_free);
+ return our_type;
+}
+
+/**
+ * gdk_setting_get:
+ * @name: the name of the setting.
+ * @value: location to store the value of the setting.
+ *
+ * Obtains a desktop-wide setting, such as the double-click time,
+ * for the default screen. See gdk_screen_get_setting().
+ *
+ * Returns: %TRUE if the setting existed and a value was stored
+ * in @value, %FALSE otherwise.
+ **/
+gboolean
+gdk_setting_get (const gchar *name,
+ GValue *value)
+{
+ return gdk_screen_get_setting (gdk_screen_get_default (), name, value);
+}
projects / ~andy / gtk / blobdiff