Panda3D
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stateMunger.h
00001 // Filename: stateMunger.h
00002 // Created by:  drose (04May05)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef STATEMUNGER_H
00016 #define STATEMUNGER_H
00017 
00018 #include "pandabase.h"
00019 #include "geomMunger.h"
00020 #include "renderState.h"
00021 #include "weakPointerTo.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : StateMunger
00025 // Description : This is just a simple derivative of GeomMunger that
00026 //               adds the ability to munge states.  That functionality
00027 //               can't be declared in the base class, since it doesn't
00028 //               really know about RenderState.
00029 ////////////////////////////////////////////////////////////////////
00030 class EXPCL_PANDA_PGRAPH StateMunger : public GeomMunger {
00031 public:
00032   INLINE StateMunger(GraphicsStateGuardianBase *gsg);
00033   virtual ~StateMunger();
00034   CPT(RenderState) munge_state(const RenderState *state);
00035 
00036 protected:
00037   virtual CPT(RenderState) munge_state_impl(const RenderState *state);
00038 
00039   typedef pmap< WCPT(RenderState), WCPT(RenderState) > StateMap;
00040   StateMap _state_map;
00041 
00042 public:
00043   static TypeHandle get_class_type() {
00044     return _type_handle;
00045   }
00046   static void init_type() {
00047     GeomMunger::init_type();
00048     register_type(_type_handle, "StateMunger",
00049                   GeomMunger::get_class_type());
00050   }
00051   virtual TypeHandle get_type() const {
00052     return get_class_type();
00053   }
00054   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00055 
00056 private:
00057   static TypeHandle _type_handle;
00058 };
00059 
00060 #include "stateMunger.I"
00061 
00062 #endif
00063 
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