Added QGraphicsObject::ungrabGesture()

Oops, apparently we forgot to add a function for unsubscribing a
graphics object from a gesture. Fixing it now.

Reviewed-by: trustme

3 files changed, 18 insertions, 4 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 738c6e3..58d7e7d 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -7322,9 +7322,8 @@ QGraphicsObject::QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent
 /*!
     Subscribes the graphics object to the given \a gesture for the specified \a context.
 
-    \sa QGestureEvent
+    \sa ungrabGesture(), QGestureEvent
 */
-
 void QGraphicsObject::grabGesture(Qt::GestureType gesture, Qt::GestureContext context)
 {
     QGraphicsItemPrivate * const d = QGraphicsItem::d_func();
@@ -7333,6 +7332,20 @@ void QGraphicsObject::grabGesture(Qt::GestureType gesture, Qt::GestureContext co
 }
 
 /*!
+    Unsubscribes the graphics object from the given \a gesture.
+
+    \sa grabGesture(), QGestureEvent
+*/
+void QGraphicsObject::ungrabGesture(Qt::GestureType gesture)
+{
+    QGraphicsItemPrivate * const d = QGraphicsItem::d_func();
+    if (d->gestureContext.remove(gesture)) {
+        QGestureManager *manager = QGestureManager::instance();
+        manager->cleanupCachedGestures(this, gesture);
+    }
+}
+
+/*!
   \property QGraphicsObject::parent
   \brief the parent of the item
 
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index f3fe99c..fc180f3 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -556,6 +556,7 @@ public:
 #endif
 
     void grabGesture(Qt::GestureType type, Qt::GestureContext context = Qt::ItemWithChildrenGesture);
+    void ungrabGesture(Qt::GestureType type);
 
 Q_SIGNALS:
     void parentChanged();
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 14f3bfe..ac2808c 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -11712,7 +11712,7 @@ QGraphicsProxyWidget *QWidget::graphicsProxyWidget() const
 /*!
     Subscribes the widget to a given \a gesture with a \a context.
 
-    \sa QGestureEvent
+    \sa ungrabGesture(), QGestureEvent
     \since 4.6
 */
 void QWidget::grabGesture(Qt::GestureType gesture, Qt::GestureContext context)
@@ -11725,7 +11725,7 @@ void QWidget::grabGesture(Qt::GestureType gesture, Qt::GestureContext context)
 /*!
     Unsubscribes the widget to a given \a gesture type
 
-    \sa QGestureEvent
+    \sa grabGesture(), QGestureEvent
     \since 4.6
 */
 void QWidget::ungrabGesture(Qt::GestureType gesture)