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iffChunk.h
1 // Filename: iffChunk.h
2 // Created by: drose (23Apr01)
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 IFFCHUNK_H
16 #define IFFCHUNK_H
17 
18 #include "pandatoolbase.h"
19 
20 #include "iffId.h"
21 
22 #include "typedObject.h"
23 #include "typedReferenceCount.h"
24 
25 class IffInputFile;
26 
27 ////////////////////////////////////////////////////////////////////
28 // Class : IffChunk
29 // Description : The basic kind of record in an EA "IFF" file, which
30 // the LightWave object file is based on.
31 ////////////////////////////////////////////////////////////////////
32 class IffChunk : public TypedReferenceCount {
33 public:
34  INLINE IffChunk();
35 
36  INLINE IffId get_id() const;
37  INLINE void set_id(IffId id);
38 
39  virtual bool read_iff(IffInputFile *in, size_t stop_at)=0;
40 
41  virtual void output(ostream &out) const;
42  virtual void write(ostream &out, int indent_level = 0) const;
43 
44  virtual IffChunk *make_new_chunk(IffInputFile *in, IffId id);
45 
46 private:
47  IffId _id;
48 
49 public:
50  virtual TypeHandle get_type() const {
51  return get_class_type();
52  }
53  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
54  static TypeHandle get_class_type() {
55  return _type_handle;
56  }
57  static void init_type() {
58  TypedReferenceCount::init_type();
59  register_type(_type_handle, "IffChunk",
60  TypedReferenceCount::get_class_type());
61  }
62 
63 private:
64  static TypeHandle _type_handle;
65 };
66 
67 #include "iffChunk.I"
68 
69 INLINE ostream &operator << (ostream &out, const IffChunk &chunk) {
70  chunk.output(out);
71  return out;
72 }
73 
74 #endif
75 
76 
virtual IffChunk * make_new_chunk(IffInputFile *in, IffId id)
Allocates and returns a new chunk of the appropriate type based on the given ID, according to the con...
Definition: iffChunk.cxx:50
A base class for things which need to inherit from both TypedObject and from ReferenceCount.
The basic kind of record in an EA &quot;IFF&quot; file, which the LightWave object file is based on...
Definition: iffChunk.h:32
A wrapper around an istream used for reading an IFF file.
Definition: iffInputFile.h:33
IffId get_id() const
Returns the ID associated with this chunk.
Definition: iffChunk.I:31
void set_id(IffId id)
Changes the ID associated with this chunk.
Definition: iffChunk.I:41
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:85
A four-byte chunk ID appearing in an &quot;IFF&quot; file.
Definition: iffId.h:29