* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
+#include "config.h"
#include <string.h> /* For memset() */
#include "gdk.h"
#include "gdkinternals.h"
+#include "gdkalias.h"
typedef struct _GdkIOClosure GdkIOClosure;
{
GdkInputFunction function;
GdkInputCondition condition;
- GdkDestroyNotify notify;
+ GDestroyNotify notify;
gpointer data;
};
gpointer _gdk_event_data = NULL;
GDestroyNotify _gdk_event_notify = NULL;
-#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 *
*********************************************/
return NULL;
}
+/**
+ * _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
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
* queue if event->any.window is %NULL. See gdk_display_put_event().
**/
void
-gdk_event_put (GdkEvent *event)
+gdk_event_put (const GdkEvent *event)
{
GdkDisplay *display;
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 (GdkEventType type)
{
GdkEventPrivate *new_private;
GdkEvent *new_event;
- if (event_chunk == NULL)
- {
- 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_private = g_chunk_new (GdkEventPrivate, event_chunk);
- memset (new_private, 0, sizeof (GdkEventPrivate));
+ if (!event_hash)
+ event_hash = g_hash_table_new (g_direct_hash, NULL);
+
+ new_private = g_slice_new0 (GdkEventPrivate);
new_private->flags = 0;
new_private->screen = NULL;
}
static gboolean
-gdk_event_is_allocated (GdkEvent *event)
+gdk_event_is_allocated (const GdkEvent *event)
{
if (event_hash)
return g_hash_table_lookup (event_hash, event) != NULL;
* gdk_event_free().
**/
GdkEvent*
-gdk_event_copy (GdkEvent *event)
+gdk_event_copy (const GdkEvent *event)
{
- GdkEventPrivate *private;
GdkEventPrivate *new_private;
GdkEvent *new_event;
new_event = gdk_event_new (GDK_NOTHING);
new_private = (GdkEventPrivate *)new_event;
- private = (GdkEventPrivate *)event;
-
*new_event = *event;
if (new_event->any.window)
g_object_ref (new_event->any.window);
- new_private->screen = private->screen;
+ if (gdk_event_is_allocated (event))
+ {
+ GdkEventPrivate *private = (GdkEventPrivate *)event;
+
+ new_private->screen = private->screen;
+ }
switch (event->any.type)
{
break;
case GDK_EXPOSE:
+ case GDK_DAMAGE:
if (event->expose.region)
new_event->expose.region = gdk_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;
}
{
g_return_if_fail (event != NULL);
- g_assert (event_chunk != NULL); /* paranoid */
-
if (event->any.window)
g_object_unref (event->any.window);
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)
gdk_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:
break;
}
+ _gdk_windowing_event_data_free (event);
+
g_hash_table_remove (event_hash, event);
- g_mem_chunk_free (event_chunk, event);
+ g_slice_free (GdkEventPrivate, (GdkEventPrivate*) event);
}
/**
* 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_CONFIGURE:
case GDK_FOCUS_CHANGE:
case GDK_NOTHING:
+ case GDK_DAMAGE:
case GDK_DELETE:
case GDK_DESTROY:
case GDK_EXPOSE:
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 value: %TRUE if there was a state field in the event
**/
gboolean
-gdk_event_get_state (GdkEvent *event,
- GdkModifierType *state)
+gdk_event_get_state (const GdkEvent *event,
+ GdkModifierType *state)
{
g_return_val_if_fail (state != NULL, FALSE);
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_UNMAP:
case GDK_WINDOW_STATE:
case GDK_SETTING:
+ case GDK_OWNER_CHANGE:
+ case GDK_GRAB_BROKEN:
+ case GDK_EVENT_LAST:
/* no state field */
break;
}
* Return value: %TRUE if the event delivered event window coordinates
**/
gboolean
-gdk_event_get_coords (GdkEvent *event,
- gdouble *x_win,
- gdouble *y_win)
+gdk_event_get_coords (const GdkEvent *event,
+ gdouble *x_win,
+ gdouble *y_win)
{
gdouble x = 0, y = 0;
gboolean fetched = TRUE;
* Return value: %TRUE if the event delivered root window coordinates
**/
gboolean
-gdk_event_get_root_coords (GdkEvent *event,
- gdouble *x_root,
- gdouble *y_root)
+gdk_event_get_root_coords (const GdkEvent *event,
+ gdouble *x_root,
+ gdouble *y_root)
{
gdouble x = 0, y = 0;
gboolean fetched = TRUE;
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:
* Return value: %TRUE if the specified axis was found, otherwise %FALSE
**/
gboolean
-gdk_event_get_axis (GdkEvent *event,
- GdkAxisUse axis_use,
- gdouble *value)
+gdk_event_get_axis (const GdkEvent *event,
+ GdkAxisUse axis_use,
+ gdouble *value)
{
gdouble *axes;
GdkDevice *device;
return gdk_device_get_axis (device, axes, axis_use, value);
}
+/**
+ * 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)
+{
+ 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);
+ }
+}
+
/**
* gdk_event_set_screen:
* @event: a #GdkEvent
* 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_event_set_screen (GdkEvent *event,
* @event: a #GdkEvent
*
* Returns the screen for the event. The screen is
- * typically the screen for event->any.window, but
+ * typically the screen for <literal>event->any.window</literal>, but
* for events such as mouse events, it is the screen
- * where the the pointer was when the event occurs -
+ * where 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.
+ * 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 (GdkEvent *event)
+gdk_event_get_screen (const GdkEvent *event)
{
if (gdk_event_is_allocated (event))
{
return TRUE;
}
+/**
+ * gdk_input_add_full:
+ * @source: a file descriptor.
+ * @condition: the condition.
+ * @function: the callback function.
+ * @data: callback data passed to @function.
+ * @destroy: callback function to call with @data when the input
+ * handler is removed.
+ *
+ * Establish a callback when a condition becomes true on
+ * a file descriptor.
+ *
+ * Returns: a tag that can later be used as an argument to
+ * gdk_input_remove().
+ *
+ * Deprecated: 2.14: Use g_io_add_watch_full() on a #GIOChannel
+ */
gint
gdk_input_add_full (gint source,
GdkInputCondition condition,
GdkInputFunction function,
gpointer data,
- GdkDestroyNotify destroy)
+ GDestroyNotify destroy)
{
guint result;
GdkIOClosure *closure = g_new (GdkIOClosure, 1);
return result;
}
+/**
+ * gdk_input_add:
+ * @source: a file descriptor.
+ * @condition: the condition.
+ * @function: the callback function.
+ * @data: callback data passed to @function.
+ *
+ * Establish a callback when a condition becomes true on
+ * a file descriptor.
+ *
+ * Returns: a tag that can later be used as an argument to
+ * gdk_input_remove().
+ *
+ * Deprecated: 2.14: Use g_io_add_watch() on a #GIOChannel
+ */
gint
gdk_input_add (gint source,
GdkInputCondition condition,
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_display_put_event (display, &temp_event);
+
+ event_copy = gdk_event_copy (&temp_event);
+ link = _gdk_event_queue_append (display, event_copy);
}
void
_gdk_event_button_generate (GdkDisplay *display,
GdkEvent *event)
{
- if ((event->button.time < (display->button_click_time[1] + TRIPLE_CLICK_TIME (display))) &&
+ if ((event->button.time < (display->button_click_time[1] + 2*display->double_click_time)) &&
(event->button.window == display->button_window[1]) &&
- (event->button.button == display->button_number[1]))
- {
+ (event->button.button == display->button_number[1]) &&
+ (ABS (event->button.x - display->button_x[1]) <= display->double_click_distance) &&
+ (ABS (event->button.y - display->button_y[1]) <= display->double_click_distance))
+{
gdk_synthesize_click (display, event, 3);
-
+
display->button_click_time[1] = 0;
display->button_click_time[0] = 0;
display->button_window[1] = NULL;
- display->button_window[0] = 0;
+ display->button_window[0] = NULL;
display->button_number[1] = -1;
display->button_number[0] = -1;
+ display->button_x[0] = display->button_x[1] = 0;
+ display->button_y[0] = display->button_y[1] = 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]))
+ (event->button.button == display->button_number[0]) &&
+ (ABS (event->button.x - display->button_x[0]) <= display->double_click_distance) &&
+ (ABS (event->button.y - display->button_y[0]) <= display->double_click_distance))
{
gdk_synthesize_click (display, event, 2);
display->button_window[0] = event->button.window;
display->button_number[1] = display->button_number[0];
display->button_number[0] = event->button.button;
+ display->button_x[1] = display->button_x[0];
+ display->button_x[0] = event->button.x;
+ display->button_y[1] = display->button_y[0];
+ display->button_y[0] = event->button.y;
}
else
{
display->button_window[0] = event->button.window;
display->button_number[1] = -1;
display->button_number[0] = event->button.button;
+ display->button_x[1] = 0;
+ display->button_x[0] = event->button.x;
+ display->button_y[1] = 0;
+ display->button_y[0] = event->button.y;
}
}
old = ((GdkWindowObject*) temp_event.window_state.window)->state;
- 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;
+ 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. */
((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
*
* 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.
+ * 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,
* @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.
+ * 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 ("GdkEvent",
+ our_type = g_boxed_type_register_static (g_intern_static_string ("GdkEvent"),
(GBoxedCopyFunc)gdk_event_copy,
(GBoxedFreeFunc)gdk_event_free);
return our_type;
* 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
+ * Returns: %TRUE if the setting existed and a value was stored
* in @value, %FALSE otherwise.
**/
gboolean
{
return gdk_screen_get_setting (gdk_screen_get_default (), name, value);
}
+
+#define __GDK_EVENTS_C__
+#include "gdkaliasdef.c"
projects / ~andy / gtk / blobdiff