Unwind VCLObject bits for OutputDevice derivatives.

Change-Id: I1abdf0a6d43029fb29e5cbc6c3f788aa98f55a1f

canvas/source/vcl/backbuffer.cxx

@@ -43,14 +43,20 @@ namespace vclcanvas
         }
     }
 
+    BackBuffer::~BackBuffer()
+    {
+        SolarMutexGuard aGuard;
+        maVDev.disposeAndClear();
+    }
+
     OutputDevice& BackBuffer::getOutDev()
     {
-        return maVDev.get();
+        return *maVDev.get();
     }
 
     const OutputDevice& BackBuffer::getOutDev() const
     {
-        return maVDev.get();
+        return *maVDev.get();
     }
 
     void BackBuffer::setSize( const ::Size& rNewSize )

canvas/source/vcl/backbuffer.hxx

@@ -43,6 +43,7 @@ namespace vclcanvas
          */
         BackBuffer( const OutputDevice& rRefDevice,
                     bool                bMonochromeBuffer=false );
+        ~BackBuffer();
 
         virtual OutputDevice&       getOutDev() SAL_OVERRIDE;
         virtual const OutputDevice& getOutDev() const SAL_OVERRIDE;
@@ -50,7 +51,7 @@ namespace vclcanvas
         void setSize( const ::Size& rNewSize );
 
     private:
-        ::canvas::vcltools::VCLObject<VirtualDevice>    maVDev;
+        VclPtr< VirtualDevice > maVDev;
     };
 
     typedef ::boost::shared_ptr< BackBuffer > BackBufferSharedPtr;

canvas/source/vcl/spritecanvashelper.cxx

@@ -189,6 +189,12 @@ namespace vclcanvas
 #endif
     }
 
+    SpriteCanvasHelper::~SpriteCanvasHelper()
+    {
+        SolarMutexGuard aGuard;
+        maVDev.disposeAndClear();
+    }
+
     void SpriteCanvasHelper::init( const OutDevProviderSharedPtr& rOutDev,
                                    SpriteCanvas&                  rOwningSpriteCanvas,
                                    ::canvas::SpriteRedrawManager& rManager,

canvas/source/vcl/spritecanvashelper.hxx

@@ -23,6 +23,7 @@
 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
 #include <com/sun/star/rendering/XIntegerBitmap.hpp>
 
+#include <vcl/vclptr.hxx>
 #include <vcl/virdev.hxx>
 
 #include <canvas/spriteredrawmanager.hxx>
@@ -40,6 +41,7 @@ namespace vclcanvas
     {
     public:
         SpriteCanvasHelper();
+        ~SpriteCanvasHelper()
 
         void init( const OutDevProviderSharedPtr& rOutDev,
                    SpriteCanvas&                  rOwningSpriteCanvas,
@@ -150,7 +152,7 @@ namespace vclcanvas
             Typically, sprites will be composited in the background,
             before pushing them to screen. This happens here.
          */
-        ::canvas::vcltools::VCLObject< VirtualDevice >  maVDev;
+        VclPtr< VirtualDevice > maVDev;
 
         /// For the frame counter timings
         ::canvas::tools::ElapsedTime                    maLastUpdate;