Panda3D
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modelRoot.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 modelRoot.h
10 * @author drose
11 * @date 2002-03-16
12 */
13
14#ifndef MODELROOT_H
15#define MODELROOT_H
16
17#include "pandabase.h"
18#include "referenceCount.h"
19#include "modelNode.h"
20
21/**
22 * A node of this type is created automatically at the root of each model file
23 * that is loaded. It may eventually contain some information about the
24 * contents of the model; at the moment, it contains no special information,
25 * but can be used as a flag to indicate the presence of a loaded model file.
26 */
27class EXPCL_PANDA_PGRAPH ModelRoot : public ModelNode {
28PUBLISHED:
29 INLINE explicit ModelRoot(const std::string &name);
30 INLINE explicit ModelRoot(const Filename &fullpath, time_t timestamp);
31
32 INLINE int get_model_ref_count() const;
33 MAKE_PROPERTY(model_ref_count, get_model_ref_count);
34
35 INLINE const Filename &get_fullpath() const;
36 INLINE void set_fullpath(const Filename &fullpath);
37 MAKE_PROPERTY(fullpath, get_fullpath, set_fullpath);
38
39 INLINE time_t get_timestamp() const;
40 INLINE void set_timestamp(time_t timestamp);
41 MAKE_PROPERTY(timestamp, get_timestamp, set_timestamp);
42
43 // This class is used to unify references to the same model.
45 PUBLISHED:
46 INLINE ModelReference();
47 };
48
49 INLINE ModelReference *get_reference() const;
50 void set_reference(ModelReference *ref);
51 MAKE_PROPERTY(reference, get_reference, set_reference);
52
53protected:
54 INLINE ModelRoot(const ModelRoot &copy);
55
56public:
57 virtual PandaNode *make_copy() const;
58
59private:
60 Filename _fullpath;
61 time_t _timestamp;
62 PT(ModelReference) _reference;
63
64public:
65 static void register_with_read_factory();
66 virtual void write_datagram(BamWriter *manager, Datagram &dg);
67
68protected:
69 static TypedWritable *make_from_bam(const FactoryParams &params);
70 void fillin(DatagramIterator &scan, BamReader *manager);
71
72public:
73 static TypeHandle get_class_type() {
74 return _type_handle;
75 }
76 static void init_type() {
77 ModelNode::init_type();
78 register_type(_type_handle, "ModelRoot",
79 ModelNode::get_class_type());
80 }
81 virtual TypeHandle get_type() const {
82 return get_class_type();
83 }
84 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
85
86private:
87 static TypeHandle _type_handle;
88};
89
90#include "modelRoot.I"
91
92#endif
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition bamWriter.h:63
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
The name of a file, such as a texture file or an Egg file.
Definition filename.h:44
This node is placed at key points within the scene graph to indicate the roots of "models": subtrees ...
Definition modelNode.h:31
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
static void register_with_read_factory()
Tells the BamReader how to create objects of type ModelNode.
virtual PandaNode * make_copy() const
Returns a newly-allocated Node that is a shallow copy of this one.
Definition modelNode.cxx:29
A node of this type is created automatically at the root of each model file that is loaded.
Definition modelRoot.h:27
A basic node of the scene graph or data graph.
Definition pandaNode.h:65
A base class for all things that want to be reference-counted.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...