Panda3D
lwoGroupChunk.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file lwoGroupChunk.h
10  * @author drose
11  * @date 2001-04-24
12  */
13 
14 #ifndef LWOGROUPCHUNK_H
15 #define LWOGROUPCHUNK_H
16 
17 #include "pandatoolbase.h"
18 
19 #include "lwoChunk.h"
20 #include "iffChunk.h"
21 
22 #include "pointerTo.h"
23 
24 #include "pvector.h"
25 
26 /**
27  * A particular kind of LwoChunk that is expected to contain an arbitrary
28  * number of child chunks.
29  */
30 class LwoGroupChunk : public LwoChunk {
31 public:
32  int get_num_chunks() const;
33  IffChunk *get_chunk(int n) const;
34 
35 protected:
36  bool read_chunks_iff(IffInputFile *in, size_t stop_at);
37  bool read_subchunks_iff(IffInputFile *in, size_t stop_at);
38  void write_chunks(std::ostream &out, int indent_level) const;
39 
40  typedef pvector< PT(IffChunk) > Chunks;
41  Chunks _chunks;
42 
43 public:
44  virtual TypeHandle get_type() const {
45  return get_class_type();
46  }
47  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
48  static TypeHandle get_class_type() {
49  return _type_handle;
50  }
51  static void init_type() {
52  LwoChunk::init_type();
53  register_type(_type_handle, "LwoGroupChunk",
54  LwoChunk::get_class_type());
55  }
56 
57 private:
58  static TypeHandle _type_handle;
59 };
60 
61 #endif
pvector
This is our own Panda specialization on the default STL vector.
Definition: pvector.h:42
pvector.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
LwoGroupChunk::get_chunk
IffChunk * get_chunk(int n) const
Returns the nth child chunk of this group.
Definition: lwoGroupChunk.cxx:33
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
lwoChunk.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
LwoGroupChunk
A particular kind of LwoChunk that is expected to contain an arbitrary number of child chunks.
Definition: lwoGroupChunk.h:30
iffChunk.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
IffInputFile
A wrapper around an istream used for reading an IFF file.
Definition: iffInputFile.h:30
LwoGroupChunk::get_num_chunks
int get_num_chunks() const
Returns the number of child chunks of this group.
Definition: lwoGroupChunk.cxx:25
pandatoolbase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
IffChunk
The basic kind of record in an EA "IFF" file, which the LightWave object file is based on.
Definition: iffChunk.h:30
pointerTo.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
LwoChunk
A specialization of IffChunk for Lightwave Object files.
Definition: lwoChunk.h:26