150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Copyright (C) 2010 Intel Corporation.
|
|
* Copyright (C) 2011 Robert Bosch Car Multimedia GmbH.
|
|
* Copyright (C) 2012 Collabora Ltd.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Author:
|
|
* Emanuele Aina <emanuele.aina@collabora.com>
|
|
*
|
|
* Based on ClutterPanAction
|
|
* Based on ClutterDragAction, ClutterSwipeAction, and MxKineticScrollView,
|
|
* written by:
|
|
* Emmanuele Bassi <ebassi@linux.intel.com>
|
|
* Tomeu Vizoso <tomeu.vizoso@collabora.co.uk>
|
|
* Chris Lord <chris@linux.intel.com>
|
|
*/
|
|
|
|
/**
|
|
* SECTION:clutter-tap-action
|
|
* @Title: ClutterTapAction
|
|
* @Short_Description: Action for tap gestures
|
|
*
|
|
* #ClutterTapAction is a sub-class of #ClutterGestureAction that implements
|
|
* the logic for recognizing mouse clicks and touch tap gestures.
|
|
*
|
|
* The simplest usage of #ClutterTapAction consists in adding it to
|
|
* a #ClutterActor, setting it as reactive and connecting a
|
|
* callback for the #ClutterTapAction::tap signal, along the lines of the
|
|
* following code:
|
|
*
|
|
* |[
|
|
* clutter_actor_add_action (actor, clutter_tap_action_new ());
|
|
* clutter_actor_set_reactive (actor, TRUE);
|
|
* g_signal_connect (action, "tap", G_CALLBACK (on_tap_callback), NULL);
|
|
* ]|
|
|
*
|
|
* Since: 1.14
|
|
*/
|
|
|
|
#include "clutter-build-config.h"
|
|
|
|
#include "clutter-tap-action.h"
|
|
|
|
#include "clutter-debug.h"
|
|
#include "clutter-enum-types.h"
|
|
#include "clutter-gesture-action-private.h"
|
|
#include "clutter-marshal.h"
|
|
#include "clutter-private.h"
|
|
|
|
enum
|
|
{
|
|
TAP,
|
|
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static guint tap_signals[LAST_SIGNAL] = { 0, };
|
|
|
|
G_DEFINE_TYPE (ClutterTapAction, clutter_tap_action,
|
|
CLUTTER_TYPE_GESTURE_ACTION);
|
|
|
|
static void
|
|
emit_tap (ClutterTapAction *self,
|
|
ClutterActor *actor)
|
|
{
|
|
g_signal_emit (self, tap_signals[TAP], 0, actor);
|
|
}
|
|
|
|
static void
|
|
gesture_end (ClutterGestureAction *gesture,
|
|
ClutterActor *actor)
|
|
{
|
|
emit_tap (CLUTTER_TAP_ACTION (gesture), actor);
|
|
}
|
|
|
|
static void
|
|
clutter_tap_action_constructed (GObject *object)
|
|
{
|
|
clutter_gesture_action_set_threshold_trigger_edge (CLUTTER_GESTURE_ACTION (object),
|
|
CLUTTER_GESTURE_TRIGGER_EDGE_BEFORE);
|
|
}
|
|
|
|
static void
|
|
clutter_tap_action_class_init (ClutterTapActionClass *klass)
|
|
{
|
|
ClutterGestureActionClass *gesture_class =
|
|
CLUTTER_GESTURE_ACTION_CLASS (klass);
|
|
GObjectClass *object_class =
|
|
G_OBJECT_CLASS (klass);
|
|
|
|
object_class->constructed = clutter_tap_action_constructed;
|
|
|
|
gesture_class->gesture_end = gesture_end;
|
|
|
|
/**
|
|
* ClutterTapAction::tap:
|
|
* @action: the #ClutterTapAction that emitted the signal
|
|
* @actor: the #ClutterActor attached to the @action
|
|
*
|
|
* The ::tap signal is emitted when the tap gesture is complete.
|
|
*
|
|
* Since: 1.14
|
|
*/
|
|
tap_signals[TAP] =
|
|
g_signal_new (I_("tap"),
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (ClutterTapActionClass, tap),
|
|
NULL, NULL,
|
|
_clutter_marshal_VOID__OBJECT,
|
|
G_TYPE_NONE, 1,
|
|
CLUTTER_TYPE_ACTOR);
|
|
}
|
|
|
|
static void
|
|
clutter_tap_action_init (ClutterTapAction *self)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* clutter_tap_action_new:
|
|
*
|
|
* Creates a new #ClutterTapAction instance
|
|
*
|
|
* Return value: the newly created #ClutterTapAction
|
|
*
|
|
* Since: 1.14
|
|
*/
|
|
ClutterAction *
|
|
clutter_tap_action_new (void)
|
|
{
|
|
return g_object_new (CLUTTER_TYPE_TAP_ACTION, NULL);
|
|
}
|