Panda3D

callbackObject.h

00001 // Filename: callbackObject.h
00002 // Created by:  drose (13Mar09)
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 CALLBACKOBJECT_H
00016 #define CALLBACKOBJECT_H
00017 
00018 #include "pandabase.h"
00019 #include "typedReferenceCount.h"
00020 
00021 class CallbackData;
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : CallbackObject
00025 // Description : This is a generic object that can be assigned to a
00026 //               callback at various points in the rendering process.
00027 //               This is actually a base class for a handful of
00028 //               specialized callback object types.  You can also
00029 //               subclass it yourself to make your own callback
00030 //               handler.
00031 ////////////////////////////////////////////////////////////////////
00032 class EXPCL_PANDA_PUTIL CallbackObject : public TypedReferenceCount {
00033 protected:
00034   INLINE CallbackObject();
00035 public:
00036   ALLOC_DELETED_CHAIN(CallbackObject);
00037 
00038 PUBLISHED:
00039   virtual void output(ostream &out) const;
00040 
00041 public:
00042   virtual void do_callback(CallbackData *cbdata);
00043 
00044 public:
00045   static TypeHandle get_class_type() {
00046     return _type_handle;
00047   }
00048   static void init_type() {
00049     TypedReferenceCount::init_type();
00050     register_type(_type_handle, "CallbackObject",
00051                   TypedReferenceCount::get_class_type());
00052   }
00053   virtual TypeHandle get_type() const {
00054     return get_class_type();
00055   }
00056   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00057 
00058 private:
00059   static TypeHandle _type_handle;
00060 };
00061 
00062 inline ostream &operator << (ostream &out, const CallbackObject &cbo) {
00063   cbo.output(out);
00064   return out;
00065 }
00066 
00067 #include "callbackObject.I"
00068 
00069 #endif
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