Panda3D
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00001 // Filename: modelRoot.h 00002 // Created by: drose (16Mar02) 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 MODELROOT_H 00016 #define MODELROOT_H 00017 00018 #include "pandabase.h" 00019 #include "referenceCount.h" 00020 #include "modelNode.h" 00021 00022 //////////////////////////////////////////////////////////////////// 00023 // Class : ModelRoot 00024 // Description : A node of this type is created automatically at the 00025 // root of each model file that is loaded. It may 00026 // eventually contain some information about the 00027 // contents of the model; at the moment, it contains no 00028 // special information, but can be used as a flag to 00029 // indicate the presence of a loaded model file. 00030 //////////////////////////////////////////////////////////////////// 00031 class EXPCL_PANDA_PGRAPH ModelRoot : public ModelNode { 00032 PUBLISHED: 00033 INLINE ModelRoot(const string &name); 00034 00035 INLINE int get_model_ref_count() const; 00036 00037 INLINE const Filename &get_fullpath() const; 00038 INLINE void set_fullpath(const Filename &fullpath); 00039 00040 // This class is used to unify references to the same model. 00041 class ModelReference : public ReferenceCount { 00042 PUBLISHED: 00043 INLINE ModelReference(); 00044 }; 00045 00046 INLINE ModelReference *get_reference() const; 00047 void set_reference(ModelReference *ref); 00048 00049 protected: 00050 INLINE ModelRoot(const ModelRoot ©); 00051 00052 public: 00053 virtual PandaNode *make_copy() const; 00054 00055 private: 00056 Filename _fullpath; 00057 PT(ModelReference) _reference; 00058 00059 public: 00060 static void register_with_read_factory(); 00061 virtual void write_datagram(BamWriter *manager, Datagram &dg); 00062 00063 protected: 00064 static TypedWritable *make_from_bam(const FactoryParams ¶ms); 00065 void fillin(DatagramIterator &scan, BamReader *manager); 00066 00067 public: 00068 static TypeHandle get_class_type() { 00069 return _type_handle; 00070 } 00071 static void init_type() { 00072 ModelNode::init_type(); 00073 register_type(_type_handle, "ModelRoot", 00074 ModelNode::get_class_type()); 00075 } 00076 virtual TypeHandle get_type() const { 00077 return get_class_type(); 00078 } 00079 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00080 00081 private: 00082 static TypeHandle _type_handle; 00083 }; 00084 00085 #include "modelRoot.I" 00086 00087 #endif 00088 00089