extract the rendering code in ChartView

We need it for the IOpenGLRenderer interface.

Change-Id: Ic9f425b44c0efdd30956eba13ef03ba7179d35a4

chart2/inc/ChartView.hxx

@@ -214,6 +214,8 @@ private: //methods
 
     void impl_updateView();
 
+    void render();
+
     ::com::sun::star::awt::Rectangle impl_createDiagramAndContent( SeriesPlotterContainer& rSeriesPlotterContainer
         , const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShapes>& xDiagramPlusAxes_Shapes
         , const ::com::sun::star::awt::Point& rAvailablePos

chart2/source/view/main/ChartView.cxx

@@ -2615,13 +2615,7 @@ void ChartView::createShapes()
         //cleanup: remove all empty group shapes to avoid grey border lines:
         lcl_removeEmptyGroupShapes( mxRootShape );
 
-        OpenGLWindow* pWindow = mrChartModel.getOpenGLWindow();
-        bool bRender = pShapeFactory->preRender(pWindow);
-        if(bRender)
-        {
-            pShapeFactory->render(mxRootShape);
-            pShapeFactory->postRender(pWindow);
-        }
+        render();
 
         if(maTimeBased.bTimeBased && maTimeBased.nFrame % 60 == 0)
         {
@@ -2676,6 +2670,18 @@ void ChartView::createShapes()
     }
 }
 
+void ChartView::render()
+{
+    AbstractShapeFactory* pShapeFactory = AbstractShapeFactory::getOrCreateShapeFactory(m_xShapeFactory);
+    OpenGLWindow* pWindow = mrChartModel.getOpenGLWindow();
+    bool bRender = pShapeFactory->preRender(pWindow);
+    if(bRender)
+    {
+        pShapeFactory->render(mxRootShape);
+        pShapeFactory->postRender(pWindow);
+    }
+}
+
 // util::XEventListener (base of XCloseListener)
 void SAL_CALL ChartView::disposing( const lang::EventObject& /* rSource */ )
         throw(uno::RuntimeException, std::exception)