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typedWritableReferenceCount.h
00001 // Filename: typedWritableReferenceCount.h
00002 // Created by:  jason (08Jun00)
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 TYPEDWRITABLEREFERENCECOUNT_H
00016 #define TYPEDWRITABLEREFERENCECOUNT_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "typedWritable.h"
00021 #include "referenceCount.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : TypedWritableReferenceCount
00025 // Description : A base class for things which need to inherit from
00026 //               both TypedWritable 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 //               TypedWritables and ReferenceCounters.
00032 //               
00033 //               See also TypedObject for detailed instructions.
00034 ////////////////////////////////////////////////////////////////////
00035 class EXPCL_PANDA_PUTIL TypedWritableReferenceCount : public TypedWritable, public ReferenceCount {
00036 public:
00037   INLINE TypedWritableReferenceCount();
00038   INLINE TypedWritableReferenceCount(const TypedWritableReferenceCount &copy);
00039   INLINE void operator = (const TypedWritableReferenceCount &copy);
00040 
00041   virtual ReferenceCount *as_reference_count();
00042 
00043 PUBLISHED:
00044   static PT(TypedWritableReferenceCount) decode_from_bam_stream(const string &data, BamReader *reader = NULL);
00045 
00046 public:
00047   virtual TypeHandle get_type() const {
00048     return get_class_type();
00049   }
00050   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00051   static TypeHandle get_class_type() {
00052     return _type_handle;
00053   }
00054   static void init_type() {
00055     TypedWritable::init_type();
00056     ReferenceCount::init_type();
00057     register_type(_type_handle, "TypedWritableReferenceCount",
00058                   TypedWritable::get_class_type(),
00059                   ReferenceCount::get_class_type());
00060     TypeRegistry::ptr()->record_alternate_name(_type_handle,
00061                                                "TypedWriteableReferenceCount");
00062   }
00063 
00064 private:
00065   static TypeHandle _type_handle;
00066 };
00067 
00068 #include "typedWritableReferenceCount.I"
00069 
00070 #endif
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