Fix OpenGL chart reinitializing

Problem after ChartWindow was disabled and enabled
again, OpenGL content was lost.

Two things:
-After setting a new OpenGLWindow the corresponding
IRenderer must be set (x3DWindowProvider->update)
-InitOpenGL() call should not depend on DummyChart, but on
OpenGLWindow (OpenGLContext).

Change-Id: If74e1945de9973d3921ceea1ca6fef39311add7a

chart2/source/controller/main/ChartWindow.cxx

@@ -64,6 +64,7 @@ ChartWindow::ChartWindow( ChartController* pController, Window* pParent, WinBits
     uno::Reference< chart2::X3DChartWindowProvider > x3DWindowProvider(pController->getModel(), uno::UNO_QUERY_THROW);
     sal_uInt64 nWindowPtr = reinterpret_cast<sal_uInt64>(m_pOpenGLWindow);
     x3DWindowProvider->setWindow(nWindowPtr);
+    x3DWindowProvider->update();
 }
 
 ChartWindow::~ChartWindow()
@@ -72,6 +73,7 @@ ChartWindow::~ChartWindow()
     {
         uno::Reference< chart2::X3DChartWindowProvider > x3DWindowProvider(m_pWindowController->getModel(), uno::UNO_QUERY_THROW);
         x3DWindowProvider->setWindow(0);
+        x3DWindowProvider->update();
     }
     delete m_pOpenGLWindow;
 }

chart2/source/view/inc/AbstractShapeFactory.hxx

@@ -238,7 +238,7 @@ public:
     /**
      * Only necessary for stateless implementations
      */
-    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes > xRootShape) = 0;
+    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes > xRootShape, bool bInitOpenGL = true) = 0;
 
     virtual bool preRender(OpenGLWindow* pWindow) = 0;
     virtual void postRender(OpenGLWindow* pWindow) = 0;

chart2/source/view/inc/OpenglShapeFactory.hxx

@@ -184,7 +184,7 @@ public:
 
     virtual void setPageSize( com::sun::star::uno::Reference < com::sun::star::drawing::XShapes > xChartShapes, const com::sun::star::awt::Size& rSize ) SAL_OVERRIDE;
 
-    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes > xDrawPage) SAL_OVERRIDE;
+    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes > xDrawPage, bool bInitOpenGL = true) SAL_OVERRIDE;
 
     virtual bool preRender(OpenGLWindow* pWindow) SAL_OVERRIDE;
     virtual void postRender(OpenGLWindow* pWindow) SAL_OVERRIDE;

chart2/source/view/inc/ShapeFactory.hxx

@@ -197,7 +197,7 @@ public:
     /**
      * not necessary right now
      */
-    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes > ) SAL_OVERRIDE {}
+    virtual void render(com::sun::star::uno::Reference< com::sun::star::drawing::XShapes >, bool ) SAL_OVERRIDE {}
 
     virtual bool preRender(OpenGLWindow*) SAL_OVERRIDE { return true; }
     virtual void postRender(OpenGLWindow*) SAL_OVERRIDE {}

chart2/source/view/main/ChartView.cxx

@@ -166,6 +166,7 @@ public:
     virtual void scroll(long nDelta) SAL_OVERRIDE;
     virtual void contextDestroyed() SAL_OVERRIDE;
 
+    const OpenGLWindow* getOpenGLWindow() const;
     void updateOpenGLWindow();
 private:
     ChartView* mpView;
@@ -208,6 +209,11 @@ void GL2DRenderer::contextDestroyed()
     mbContextDestroyed = true;
 }
 
+const OpenGLWindow* GL2DRenderer::getOpenGLWindow() const
+{
+    return mpWindow;
+}
+
 void GL2DRenderer::updateOpenGLWindow()
 {
     if(mbContextDestroyed)
@@ -2765,7 +2771,7 @@ void ChartView::render()
     bool bRender = pShapeFactory->preRender(pWindow);
     if(bRender)
     {
-        pShapeFactory->render(mxRootShape);
+        pShapeFactory->render(mxRootShape, pWindow != mp2DRenderer->getOpenGLWindow());
         pShapeFactory->postRender(pWindow);
     }
 }

chart2/source/view/main/DummyXShape.hxx

@@ -395,6 +395,7 @@ public:
     virtual void render() SAL_OVERRIDE;
 
     void clear();
+    void invalidateInit() { mbNotInit = true; }
     TextCache& getTextCache() { return maTextCache;}
 
 private:

chart2/source/view/main/OpenglShapeFactory.cxx

@@ -446,9 +446,13 @@ uno::Reference< drawing::XShape >
     return pText;
 }
 
-void OpenglShapeFactory::render(uno::Reference< drawing::XShapes > xRootShape)
+void OpenglShapeFactory::render(uno::Reference< drawing::XShapes > xRootShape, bool bInitOpenGL)
 {
     dummy::DummyChart& rChart = dynamic_cast<dummy::DummyChart&>(*xRootShape.get());
+    if(bInitOpenGL)
+    {
+        rChart.invalidateInit();
+    }
     rChart.render();
 }