Panda3D

eggBackPointer.h

00001 // Filename: eggBackPointer.h
00002 // Created by:  drose (26Feb01)
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 EGGBACKPOINTER_H
00016 #define EGGBACKPOINTER_H
00017 
00018 #include "pandatoolbase.h"
00019 
00020 #include "typedObject.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : EggBackPointer
00024 // Description : This stores a pointer from an EggJointData or
00025 //               EggSliderData object back to the referencing data in
00026 //               an egg file.  One of these objects corresponds to
00027 //               each model appearing in an egg file, and may
00028 //               reference either a single node, or a table, or a slew
00029 //               of vertices and primitives, depending on the type of
00030 //               data stored.
00031 //
00032 //               This is just an abstract base class.  The actual
00033 //               details are stored in the various subclasses.
00034 ////////////////////////////////////////////////////////////////////
00035 class EggBackPointer : public TypedObject {
00036 public:
00037   EggBackPointer();
00038 
00039   virtual double get_frame_rate() const;
00040   virtual int get_num_frames() const=0;
00041   virtual void extend_to(int num_frames);
00042   virtual bool has_vertices() const;
00043 
00044   virtual void set_name(const string &name);
00045 
00046 public:
00047   static TypeHandle get_class_type() {
00048     return _type_handle;
00049   }
00050   static void init_type() {
00051     TypedObject::init_type();
00052     register_type(_type_handle, "EggBackPointer",
00053                   TypedObject::get_class_type());
00054   }
00055   virtual TypeHandle get_type() const {
00056     return get_class_type();
00057   }
00058   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00059 
00060 private:
00061   static TypeHandle _type_handle;
00062 };
00063 
00064 #endif
00065 
00066 
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