Use shared_ptr for OpenGLPrograms, and hide its copy constructor.

Change-Id: Ia1352105acef1ededaf876a224ebc277121d6942

include/vcl/opengl/OpenGLContext.hxx

@@ -275,7 +275,7 @@ private:
         OUString fragmentShader;
         OString preamble;
     };
-    boost::ptr_map<ProgramKey, OpenGLProgram> maPrograms;
+    std::map<ProgramKey, boost::shared_ptr<OpenGLProgram> > maPrograms;
     OpenGLProgram* mpCurrentProgram;
 #ifdef DBG_UTIL
     std::set<SalGraphicsImpl*> maParents;

vcl/inc/opengl/program.hxx

@@ -39,6 +39,7 @@ private:
     TextureList     maTextures;
     bool            mbBlending;
 
+    OpenGLProgram(const OpenGLProgram &notImplemented);
 public:
     OpenGLProgram();
     ~OpenGLProgram();

vcl/source/opengl/OpenGLContext.cxx

@@ -13,6 +13,7 @@
 #include <vcl/sysdata.hxx>
 
 #include <boost/scoped_array.hpp>
+#include <boost/make_shared.hpp>
 #include <vcl/pngwrite.hxx>
 #include <vcl/bmpacc.hxx>
 #include <vcl/graph.hxx>
@@ -1588,20 +1589,17 @@ OpenGLProgram* OpenGLContext::GetProgram( const OUString& rVertexShader, const O
 {
     ProgramKey aKey( rVertexShader, rFragmentShader, preamble );
 
-    boost::ptr_map<ProgramKey, OpenGLProgram>::iterator
+    std::map< ProgramKey, boost::shared_ptr<OpenGLProgram> >::iterator
         it = maPrograms.find( aKey );
     if( it != maPrograms.end() )
-        return it->second;
+        return it->second.get();
 
-    OpenGLProgram* pProgram = new OpenGLProgram;
+    boost::shared_ptr<OpenGLProgram> pProgram = boost::make_shared<OpenGLProgram>();
     if( !pProgram->Load( rVertexShader, rFragmentShader, preamble ) )
-    {
-        delete pProgram;
         return NULL;
-    }
 
-    maPrograms.insert(aKey, pProgram);
-    return pProgram;
+    maPrograms.insert(std::pair<ProgramKey, boost::shared_ptr<OpenGLProgram> >(aKey, pProgram));
+    return pProgram.get();
 }
 
 OpenGLProgram* OpenGLContext::UseProgram( const OUString& rVertexShader, const OUString& rFragmentShader, const OString& preamble )