vcl: add ITiledRenderable::getWindow() and implement in sw

Change-Id: I9d0fad3904e74b44b0b126974ace4025f7a4fc5b

include/vcl/ITiledRenderable.hxx

@@ -147,6 +147,12 @@ public:
     {
         return OUString();
     }
+
+    /// Returns the current vcl::Window of the component.
+    virtual vcl::Window* getWindow()
+    {
+        return 0;
+    }
 };
 
 } // namespace vcl

sw/inc/unotxdoc.hxx

@@ -431,6 +431,8 @@ public:
     virtual void resetSelection() override;
     /// @see vcl::ITiledRenderable::getPartPageRectangles().
     virtual OUString getPartPageRectangles() override;
+    /// @see vcl::ITiledRenderable::getWindow().
+    virtual vcl::Window* getWindow() override;
 
     // ::com::sun::star::tiledrendering::XTiledRenderable
     virtual void SAL_CALL paintTile( const ::css::uno::Any& Parent, ::sal_Int32 nOutputWidth, ::sal_Int32 nOutputHeight, ::sal_Int32 nTilePosX, ::sal_Int32 nTilePosY, ::sal_Int32 nTileWidth, ::sal_Int32 nTileHeight ) throw (::css::uno::RuntimeException, ::std::exception) override;

sw/source/uibase/uno/unotxdoc.cxx

@@ -3182,6 +3182,13 @@ OUString SwXTextDocument::getPartPageRectangles()
     return pWrtShell->getPageRectangles();
 }
 
+vcl::Window* SwXTextDocument::getWindow()
+{
+    SolarMutexGuard aGuard;
+
+    return &pDocShell->GetView()->GetEditWin();
+}
+
 int SwXTextDocument::getPart()
 {
     SolarMutexGuard aGuard;