QmlDesigner: Add changeToCustomTool method

Change-Id: I236c2e1422ef9a984d34b752e70e1dc8bcdee6a7
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

src/plugins/qmldesigner/components/formeditor/formeditorview.cpp

@@ -436,6 +436,15 @@ void FormEditorView::changeToCustomTool(const ModelNode &modelNode)
     }
 }
 
+void FormEditorView::changeToCustomTool(AbstractCustomTool *customTool)
+{
+    m_scene->updateAllFormEditorItems();
+    m_currentTool->clear();
+    m_currentTool = customTool;
+    m_currentTool->clear();
+    m_currentTool->setItems(scene()->itemsForQmlItemNodes(selectedQmlItemNodes()));
+}
+
 void FormEditorView::registerTool(AbstractCustomTool *tool)
 {
     tool->setView(this);

src/plugins/qmldesigner/components/formeditor/formeditorview.h

@@ -100,6 +100,7 @@ public:
     void changeToResizeTool();
     void changeToTransformTools();
     void changeToCustomTool(const ModelNode &modelNode);
+    void changeToCustomTool(AbstractCustomTool *customTool);
 
     void registerTool(AbstractCustomTool *tool);