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xFile.h
00001 // Filename: xFile.h
00002 // Created by:  drose (03Oct04)
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 XFILE_H
00016 #define XFILE_H
00017 
00018 #include "pandatoolbase.h"
00019 #include "xFileNode.h"
00020 #include "xFileDataNode.h"
00021 #include "windowsGuid.h"
00022 #include "filename.h"
00023 #include "pmap.h"
00024 #include "pointerTo.h"
00025 
00026 class XFileTemplate;
00027 class XFileDataNodeTemplate;
00028 
00029 ////////////////////////////////////////////////////////////////////
00030 //       Class : XFile
00031 // Description : This represents the complete contents of an X file
00032 //               (file.x) in memory.  It may be read or written from
00033 //               or to a disk file.
00034 ////////////////////////////////////////////////////////////////////
00035 class XFile : public XFileNode {
00036 public:
00037   XFile(bool keep_names=false);
00038   ~XFile();
00039 
00040   virtual void clear();
00041 
00042   bool read(Filename filename);
00043   bool read(istream &in, const string &filename = string());
00044 
00045   bool write(Filename filename) const;
00046   bool write(ostream &out) const;
00047 
00048   XFileTemplate *find_template(const string &name) const;
00049   XFileTemplate *find_template(const WindowsGuid &guid) const;
00050 
00051   static XFileTemplate *find_standard_template(const string &name);
00052   static XFileTemplate *find_standard_template(const WindowsGuid &guid);
00053 
00054   XFileDataNodeTemplate *find_data_object(const string &name) const;
00055   XFileDataNodeTemplate *find_data_object(const WindowsGuid &guid) const;
00056 
00057   virtual void write_text(ostream &out, int indent_level) const;
00058 
00059   enum FormatType {
00060     FT_text,
00061     FT_binary,
00062     FT_compressed,
00063   };
00064   enum FloatSize {
00065     FS_32,
00066     FS_64,
00067   };
00068 
00069 private:
00070   bool read_header(istream &in);
00071   bool write_header(ostream &out) const;
00072   
00073   static const XFile *get_standard_templates();
00074 
00075   int _major_version, _minor_version;
00076   FormatType _format_type;
00077   FloatSize _float_size;
00078   bool _keep_names;
00079   
00080   typedef pmap<WindowsGuid, XFileNode *> NodesByGuid;
00081   NodesByGuid _nodes_by_guid;
00082 
00083   static PT(XFile) _standard_templates;
00084   
00085 public:
00086   static TypeHandle get_class_type() {
00087     return _type_handle;
00088   }
00089   static void init_type() {
00090     XFileNode::init_type();
00091     register_type(_type_handle, "XFile",
00092                   XFileNode::get_class_type());
00093   }
00094   virtual TypeHandle get_type() const {
00095     return get_class_type();
00096   }
00097   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00098 
00099 private:
00100   static TypeHandle _type_handle;
00101 
00102   friend class XFileNode;
00103 };
00104 
00105 #include "xFile.I"
00106 
00107 #endif
00108 
00109 
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