The GtkRadiant sources as originally released under the GPL license.

radiant/glwidget.cpp

@@ -0,0 +1,55 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "glwidget.h"
+
+#include "igtkgl.h"
+#include "modulesystem.h"
+#include "gtkutil/glwidget.h"
+
+class GtkGLAPI
+{
+  _QERGtkGLTable m_gtkgl;
+public:
+  typedef _QERGtkGLTable Type;
+  STRING_CONSTANT(Name, "*");
+
+  GtkGLAPI()
+  {
+    m_gtkgl.glwidget_new = &glwidget_new;
+    m_gtkgl.glwidget_swap_buffers = &glwidget_swap_buffers;
+    m_gtkgl.glwidget_make_current = &glwidget_make_current;
+    m_gtkgl.glwidget_destroy_context = &glwidget_destroy_context;
+    m_gtkgl.glwidget_create_context = &glwidget_create_context;
+  }
+  _QERGtkGLTable* getTable()
+  {
+    return &m_gtkgl;
+  }
+};
+
+#include "modulesystem/singletonmodule.h"
+#include "modulesystem/moduleregistry.h"
+
+typedef SingletonModule<GtkGLAPI> GtkGLModule;
+typedef Static<GtkGLModule> StaticGtkGLModule;
+StaticRegisterModule staticRegisterGtkGL(StaticGtkGLModule::instance());
+