#include "gdkinternals.h"
typedef struct _GdkIOClosure GdkIOClosure;
-typedef struct _GdkEventPrivate GdkEventPrivate;
-
-typedef enum
-{
- /* Following flag is set for events on the event queue during
- * translation and cleared afterwards.
- */
- GDK_EVENT_PENDING = 1 << 0
-} GdkEventFlags;
struct _GdkIOClosure
{
gpointer data;
};
-struct _GdkEventPrivate
-{
- GdkEvent event;
- guint flags;
-};
-
/* 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;
-static guint double_click_time = 250;
-#define TRIPLE_CLICK_TIME (2*double_click_time)
+#define TRIPLE_CLICK_TIME(display) (2*display->double_click_time)
#define DOUBLE_CLICK_DIST 5
#define TRIPLE_CLICK_DIST 5
* 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
- *************************************************************/
-
+ * @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_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_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,
_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;
- return _gdk_event_unqueue ();
+ 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 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)
{
- 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;
GdkEvent*
_gdk_event_new (void)
GdkEventPrivate *new_event;
if (event_chunk == NULL)
- event_chunk = g_mem_chunk_new ("events",
- sizeof (GdkEventPrivate),
- 4096,
- G_ALLOC_AND_FREE);
+ {
+ event_chunk = g_mem_chunk_new ("events",
+ sizeof (GdkEventPrivate),
+ 4096,
+ G_ALLOC_AND_FREE);
+ event_hash = g_hash_table_new (g_direct_hash, NULL);
+ }
new_event = g_chunk_new (GdkEventPrivate, event_chunk);
new_event->flags = 0;
+ new_event->screen = NULL;
+
+ g_hash_table_insert (event_hash, new_event, GUINT_TO_POINTER (1));
return (GdkEvent*) new_event;
}
+static gboolean
+gdk_event_is_allocated (GdkEvent *event)
+{
+ if (event_hash)
+ return g_hash_table_lookup (event_hash, event) != NULL;
+}
+
+/**
+ * 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)
{
*new_event = *event;
if (new_event->any.window)
- gdk_window_ref (new_event->any.window);
+ g_object_ref (new_event->any.window);
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:
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_get_graphics_expose() and gdk_event_copy().
+ **/
void
gdk_event_free (GdkEvent *event)
{
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:
default:
break;
}
-
+
+ g_hash_table_remove (event_chunk, event);
g_mem_chunk_free (event_chunk, event);
}
*state = event->property.state;
return TRUE;
case GDK_VISIBILITY_NOTIFY:
- *state = event->visibility.state;
- return TRUE;
case GDK_CLIENT_EVENT:
case GDK_NO_EXPOSE:
case GDK_CONFIGURE:
/**
* gdk_event_get_coords:
* @event: a #GdkEvent
- * @x_root: location to put event window x coordinate
- * @y_root: location to put event window y coordinate
+ * @x_win: location to put event window x coordinate
+ * @y_win: location to put event window y coordinate
*
* Extract the event window relative x/y coordinates from an event.
*
if (x_win)
*x_win = x;
if (y_win)
- *y_win = x;
+ *y_win = y;
return fetched;
}
if (x_root)
*x_root = x;
if (y_root)
- *y_root = x;
+ *y_root = y;
return fetched;
}
return gdk_device_get_axis (device, axes, axis_use, value);
}
-/*
- *--------------------------------------------------------------
- * gdk_set_show_events
- *
- * Turns on/off the showing of events.
- *
- * Arguments:
- * "show_events" is a boolean describing whether or
- * not to show the events gdk receives.
- *
- * Results:
- *
- * Side effects:
- * When "show_events" is TRUE, calls to "gdk_event_get"
- * will output debugging informatin regarding the event
- * received to stdout.
- *
- *--------------------------------------------------------------
- */
+/**
+ * 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().
+ **/
+void
+gdk_event_set_screen (GdkEvent *event,
+ GdkScreen *screen)
+{
+ GdkEventPrivate *private;
+
+ g_return_if_fail (gdk_event_is_allocated (event));
+
+ private = (GdkEventPrivate *)event;
+
+ private->screen = screen;
+}
+/**
+ * gdk_event_get_screen:
+ * @event: a #GdkEvent
+ *
+ * Returns the screen for the event. The screen is
+ * typically the screen for event->any.window, but
+ * for events such as mouse events, it is the screen
+ * where the the pointer was when the event occurs -
+ * that is, the screen which has the root window
+ * to which event->motion.x_root and
+ * event->motion.y_root are relative.
+ *
+ * Return value: the screen for the event
+ **/
+GdkScreen *
+gdk_event_get_screen (GdkEvent *event)
+{
+ if (gdk_event_is_allocated (event))
+ {
+ GdkEventPrivate *private = (GdkEventPrivate *)event;
+
+ if (private->screen)
+ return private->screen;
+ }
+
+ 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_set_show_events (gboolean show_events)
{
_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)
{
g_source_remove (tag);
}
-GdkEvent*
-_gdk_event_unqueue (void)
-{
- GdkEvent *event = NULL;
- GList *tmp_list;
-
- tmp_list = _gdk_event_queue_find_first ();
-
- if (tmp_list)
- {
- event = tmp_list->data;
- _gdk_event_queue_remove_link (tmp_list);
- g_list_free_1 (tmp_list);
- }
-
- return event;
-}
-
-void
-gdk_synthesize_click (GdkEvent *event,
- gint nclicks)
+static void
+gdk_synthesize_click (GdkDisplay *display,
+ GdkEvent *event,
+ gint nclicks)
{
GdkEvent temp_event;
temp_event = *event;
temp_event.type = (nclicks == 2) ? GDK_2BUTTON_PRESS : GDK_3BUTTON_PRESS;
- gdk_event_put (&temp_event);
+ gdk_display_put_event (display, &temp_event);
}
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]))
+ if ((event->button.time < (display->button_click_time[1] + TRIPLE_CLICK_TIME (display))) &&
+ (event->button.window == display->button_window[1]) &&
+ (event->button.button == display->button_number[1]))
{
- gdk_synthesize_click (event, 3);
+ gdk_synthesize_click (display, 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;
+ display->button_click_time[1] = 0;
+ display->button_click_time[0] = 0;
+ display->button_window[1] = NULL;
+ display->button_window[0] = 0;
+ display->button_number[1] = -1;
+ display->button_number[0] = -1;
}
- else if ((event->button.time < (button_click_time[0] + double_click_time)) &&
- (event->button.window == button_window[0]) &&
- (event->button.button == button_number[0]))
+ else if ((event->button.time < (display->button_click_time[0] + display->double_click_time)) &&
+ (event->button.window == display->button_window[0]) &&
+ (event->button.button == display->button_number[0]))
{
- gdk_synthesize_click (event, 2);
+ 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;
+ display->button_click_time[1] = display->button_click_time[0];
+ display->button_click_time[0] = event->button.time;
+ display->button_window[1] = display->button_window[0];
+ display->button_window[0] = event->button.window;
+ display->button_number[1] = display->button_number[0];
+ display->button_number[0] = event->button.button;
}
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;
+ display->button_click_time[1] = 0;
+ display->button_click_time[0] = event->button.time;
+ display->button_window[1] = NULL;
+ display->button_window[0] = event->button.window;
+ display->button_number[1] = -1;
+ display->button_number[0] = event->button.button;
}
}
-
void
gdk_synthesize_window_state (GdkWindow *window,
GdkWindowState unset_flags,
GdkWindowState set_flags)
{
- GdkEventWindowState temp_event;
+ GdkEvent temp_event;
GdkWindowState old;
g_return_if_fail (window != NULL);
- temp_event.window = window;
- temp_event.type = GDK_WINDOW_STATE;
- temp_event.send_event = FALSE;
+ 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;
+ old = ((GdkWindowObject*) temp_event.window_state.window)->state;
- temp_event.changed_mask = (unset_flags | set_flags) ^ old;
- temp_event.new_window_state = old;
- temp_event.new_window_state |= set_flags;
- temp_event.new_window_state &= ~unset_flags;
+ temp_event.window_state.changed_mask = (unset_flags | set_flags) ^ old;
+ 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;
- if (temp_event.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
* inconsistent state to the user.
*/
- ((GdkWindowObject*) window)->state = temp_event.new_window_state;
+ ((GdkWindowObject*) window)->state = temp_event.window_state.new_window_state;
/* We only really send the event to toplevels, since
* all the window states don't apply to non-toplevels.
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_DIALOG:
case GDK_WINDOW_TEMP: /* ? */
- gdk_event_put ((GdkEvent*) &temp_event);
+ gdk_display_put_event (gdk_drawable_get_display (window), &temp_event);
break;
case GDK_WINDOW_FOREIGN:
}
}
+/**
+ * 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 NOT set this, it is a global user-configured setting.
+ **/
+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(). Applications should NOT
+ * set this, it is a global user-configured setting.
+ **/
void
gdk_set_double_click_time (guint msec)
{
- double_click_time = msec;
+ gdk_display_set_double_click_time (gdk_display_get_default (), msec);
}
GType
if (our_type == 0)
our_type = g_boxed_type_register_static ("GdkEvent",
- NULL,
(GBoxedCopyFunc)gdk_event_copy,
- (GBoxedFreeFunc)gdk_event_free,
- FALSE);
+ (GBoxedFreeFunc)gdk_event_free);
return our_type;
}
-GdkDevice *
-gdk_device_get_core_pointer (void)
+/**
+ * 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_core_pointer;
+ return gdk_screen_get_setting (gdk_screen_get_default (), name, value);
}
projects / ~andy / gtk / blobdiff