Add count, at and clear to flickableData

Reviewed-by: Aaron Kennedy

2 files changed, 44 insertions, 1 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp
index 10dc0f8..c487715 100644
--- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp
@@ -1015,10 +1015,50 @@ void QDeclarativeFlickablePrivate::data_append(QDeclarativeListProperty<QObject>
         o->setParent(prop->object);
 }
 
+int QDeclarativeFlickablePrivate::data_count(QDeclarativeListProperty<QObject> *property)
+{
+    QDeclarativeItem *viewport = static_cast<QDeclarativeFlickablePrivate*>(property->data)->viewport;
+    return viewport->childItems().count() + viewport->children().count();
+}
+
+QObject *QDeclarativeFlickablePrivate::data_at(QDeclarativeListProperty<QObject> *property, int index)
+{
+    QDeclarativeItem *viewport = static_cast<QDeclarativeFlickablePrivate*>(property->data)->viewport;
+
+    int childItemCount = viewport->childItems().count();
+
+    if (index < 0)
+        return 0;
+
+    if (index < childItemCount) {
+        return viewport->childItems().at(index)->toGraphicsObject();
+    } else {
+        return viewport->children().at(index - childItemCount);
+    }
+
+    return 0;
+}
+
+void QDeclarativeFlickablePrivate::data_clear(QDeclarativeListProperty<QObject> *property)
+{
+    QDeclarativeItem *viewport = static_cast<QDeclarativeFlickablePrivate*>(property->data)->viewport;
+
+    const QList<QGraphicsItem*> graphicsItems = viewport->childItems();
+    for (int i = 0; i < graphicsItems.count(); i++)
+        viewport->scene()->removeItem(graphicsItems[i]);
+
+    const QList<QObject*> objects = viewport->children();
+    for (int i = 0; i < objects.count(); i++)
+        objects[i]->setParent(0);
+}
+
 QDeclarativeListProperty<QObject> QDeclarativeFlickable::flickableData()
 {
     Q_D(QDeclarativeFlickable);
-    return QDeclarativeListProperty<QObject>(this, (void *)d, QDeclarativeFlickablePrivate::data_append);
+    return QDeclarativeListProperty<QObject>(this, (void *)d, QDeclarativeFlickablePrivate::data_append,
+                                                              QDeclarativeFlickablePrivate::data_count,
+                                                              QDeclarativeFlickablePrivate::data_at,
+                                                              QDeclarativeFlickablePrivate::data_clear);
 }
 
 QDeclarativeListProperty<QGraphicsObject> QDeclarativeFlickable::flickableChildren()
diff --git a/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h
index 66d2678..0b80b1f 100644
--- a/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h
+++ b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h
@@ -171,6 +171,9 @@ public:
 
     // flickableData property
     static void data_append(QDeclarativeListProperty<QObject> *, QObject *);
+    static int data_count(QDeclarativeListProperty<QObject> *);
+    static QObject * data_at(QDeclarativeListProperty<QObject> *, int);
+    static void data_clear(QDeclarativeListProperty<QObject> *);
 };
 
 class QDeclarativeFlickableVisibleArea : public QObject