Checked in graphics context.

src/osg/GraphicsContext.cpp

@@ -0,0 +1,43 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 Robert Osfield
+ *
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * OpenSceneGraph Public License for more details.
+*/
+
+
+#include <osg/GraphicsContext>
+
+using namespace osg;
+
+static ref_ptr<GraphicsContext::CreateGraphicContexCallback> s_createGraphicsContextCallback;
+
+void GraphicsContext::setCreateGraphicsContextCallback(CreateGraphicContexCallback* callback)
+{
+    s_createGraphicsContextCallback = callback;
+}
+
+GraphicsContext::CreateGraphicContexCallback* GraphicsContext::getCreateGraphicsContextCallback()
+{
+    return s_createGraphicsContextCallback.get();
+}
+
+GraphicsContext* GraphicsContext::createGraphicsContext(Traits* traits)
+{
+    if (s_createGraphicsContextCallback.valid())
+        return s_createGraphicsContextCallback->createGraphicsContext(traits);
+    else
+        return 0;    
+}
+
+GraphicsContext::GraphicsContext():
+    _threadOfLastMakeCurrent(0)
+{
+}
+