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typedReferenceCount.h
00001 // Filename: typedReferenceCount.h
00002 // Created by:  drose (08Feb99)
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 TYPEDREFERENCECOUNT_H
00016 #define TYPEDREFERENCECOUNT_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "typedObject.h"
00021 #include "referenceCount.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : TypedReferenceCount
00025 // Description : A base class for things which need to inherit from
00026 //               both TypedObject and from ReferenceCount.  It's
00027 //               convenient to define this intermediate base class
00028 //               instead of multiply inheriting from the two classes
00029 //               each time they are needed, so that we can sensibly
00030 //               pass around pointers to things which are both
00031 //               TypedObjects and ReferenceCounters.
00032 //               
00033 //               See also TypedObject for detailed instructions.
00034 ////////////////////////////////////////////////////////////////////
00035 class EXPCL_PANDAEXPRESS TypedReferenceCount : public TypedObject, public ReferenceCount {
00036 public:
00037   INLINE TypedReferenceCount();
00038   INLINE TypedReferenceCount(const TypedReferenceCount &copy);
00039   INLINE void operator = (const TypedReferenceCount &copy);
00040 
00041 public:
00042   virtual TypeHandle get_type() const {
00043     return get_class_type();
00044   }
00045   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00046 
00047 PUBLISHED:
00048   static TypeHandle get_class_type() {
00049     return _type_handle;
00050   }
00051 
00052 public:
00053   static void init_type() {
00054     TypedObject::init_type();
00055     ReferenceCount::init_type();
00056     register_type(_type_handle, "TypedReferenceCount",
00057                   TypedObject::get_class_type(),
00058                   ReferenceCount::get_class_type());
00059   }
00060 
00061 private:
00062   static TypeHandle _type_handle;
00063 };
00064 
00065 #include "typedReferenceCount.I"
00066 
00067 #endif
00068 
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