Modify ImpGraphic class, GraphicReader context to use unique ptr

Change-Id: I51c3995f4a6e940a5235524eb94dd356b27ae8d7
Reviewed-on: https://gerrit.libreoffice.org/26955
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/include/vcl/graph.hxx b/include/vcl/graph.hxx
index 697565dbd1e6..b6d719b1e3de 100644
--- a/include/vcl/graph.hxx
+++ b/include/vcl/graph.hxx
@@ -192,10 +192,10 @@ public:
 
 public:
 
-    GraphicReader*  GetContext();
-    void            SetContext( GraphicReader* pReader );
-    void            SetDummyContext(bool value);
-    bool            IsDummyContext();
+    std::shared_ptr<GraphicReader>& GetContext();
+    void                            SetContext( const std::shared_ptr<GraphicReader> &pReader );
+    void                            SetDummyContext(bool value);
+    bool                            IsDummyContext();
 private:
     friend class GraphicObject;