Panda3D
eggBackPointer.h
1 // Filename: eggBackPointer.h
2 // Created by: drose (26Feb01)
3 //
4 ////////////////////////////////////////////////////////////////////
5 //
6 // PANDA 3D SOFTWARE
7 // Copyright (c) Carnegie Mellon University. All rights reserved.
8 //
9 // All use of this software is subject to the terms of the revised BSD
10 // license. You should have received a copy of this license along
11 // with this source code in a file named "LICENSE."
12 //
13 ////////////////////////////////////////////////////////////////////
14 
15 #ifndef EGGBACKPOINTER_H
16 #define EGGBACKPOINTER_H
17 
18 #include "pandatoolbase.h"
19 
20 #include "typedObject.h"
21 
22 ////////////////////////////////////////////////////////////////////
23 // Class : EggBackPointer
24 // Description : This stores a pointer from an EggJointData or
25 // EggSliderData object back to the referencing data in
26 // an egg file. One of these objects corresponds to
27 // each model appearing in an egg file, and may
28 // reference either a single node, or a table, or a slew
29 // of vertices and primitives, depending on the type of
30 // data stored.
31 //
32 // This is just an abstract base class. The actual
33 // details are stored in the various subclasses.
34 ////////////////////////////////////////////////////////////////////
35 class EggBackPointer : public TypedObject {
36 public:
38 
39  virtual double get_frame_rate() const;
40  virtual int get_num_frames() const=0;
41  virtual void extend_to(int num_frames);
42  virtual bool has_vertices() const;
43 
44  virtual void set_name(const string &name);
45 
46 public:
47  static TypeHandle get_class_type() {
48  return _type_handle;
49  }
50  static void init_type() {
52  register_type(_type_handle, "EggBackPointer",
53  TypedObject::get_class_type());
54  }
55  virtual TypeHandle get_type() const {
56  return get_class_type();
57  }
58  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
59 
60 private:
61  static TypeHandle _type_handle;
62 };
63 
64 #endif
65 
66 
static void init_type()
This function is declared non-inline to work around a compiler bug in g++ 2.96.
Definition: typedObject.cxx:52
virtual void set_name(const string &name)
Applies the indicated name change to the egg file.
This is an abstract class that all classes which use TypeHandle, and also provide virtual functions t...
Definition: typedObject.h:98
virtual bool has_vertices() const
Returns true if there are any vertices referenced by the node this points to, false otherwise...
virtual double get_frame_rate() const
Returns the stated frame rate of this particular joint, or 0.0 if it doesn't state.
virtual void extend_to(int num_frames)
Extends the table to the indicated number of frames.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:85
This stores a pointer from an EggJointData or EggSliderData object back to the referencing data in an...