Changed OpenMesh directory structure

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@106 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Core/IO/reader/OFFReader.hh

@@ -0,0 +1,153 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               OpenMesh                                    *
+ *        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen         *
+ *                           www.openmesh.org                                *
+ *                                                                           *
+ *---------------------------------------------------------------------------* 
+ *                                                                           *
+ *                                License                                    *
+ *                                                                           *
+ *  This library is free software; you can redistribute it and/or modify it  *
+ *  under the terms of the GNU Lesser General Public License as published    *
+ *  by the Free Software Foundation, version 2.1.                            *
+ *                                                                           *
+ *  This library is distributed in the hope that it will be useful, but      *
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
+ *  Lesser General Public License for more details.                          *
+ *                                                                           *
+ *  You should have received a copy of the GNU Lesser General Public         *
+ *  License along with this library; if not, write to the Free Software      *
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
+ *                                                                           *
+\*===========================================================================*/
+
+
+//=============================================================================
+//
+//  Implements a reader module for OFF files
+//
+//=============================================================================
+
+
+#ifndef __OFFREADER_HH__
+#define __OFFREADER_HH__
+
+
+//=== INCLUDES ================================================================
+
+
+#include <iostream>
+#include <string>
+#include <stdio.h>
+#include <fstream>
+
+#include <OpenMesh/Core/System/config.h>
+#include <OpenMesh/Core/Utils/SingletonT.hh>
+#include <OpenMesh/Core/IO/reader/BaseReader.hh>
+
+#ifndef WIN32
+#include <string.h>
+#endif
+
+//== NAMESPACES ===============================================================
+
+
+namespace OpenMesh {
+namespace IO {
+
+
+//== FORWARDS =================================================================
+
+
+class BaseImporter;
+
+
+//== IMPLEMENTATION ===========================================================
+
+
+/** 
+    Implementation of the OFF format reader. This class is singleton'ed by 
+    SingletonT to OFFReader.
+
+    By passing Options to the read function you can manipulate the reading behavoir.
+    The following options can be set:
+
+    VertexNormal
+    VertexColor
+    VertexTexCoord
+    FaceColor
+    ColorAlpha [only when reading binary]
+
+    These options define if the corresponding data should be read (if available)
+    or if it should be omitted.
+
+    After execution of the read function. The options object contains information about
+    what was actually read.
+
+    e.g. if VertexNormal was true when the read function was called, but the file
+    did not contain vertex normals then it is false afterwards.
+
+    When reading a binary off with Color Flag in the header it is assumed that all vertices
+    and faces have colors in the format "int int int".
+    If ColorAlpha is set the format "int int int int" is assumed.
+
+*/
+
+class _OFFReader_ : public BaseReader
+{
+public:
+
+  _OFFReader_();
+
+  /// Destructor
+  virtual ~_OFFReader_() {};
+
+  std::string get_description() const { return "Object File Format"; }
+  std::string get_extensions()  const { return "off"; }
+  std::string get_magic()       const { return "OFF"; }
+   
+  bool read(const std::string& _filename, 
+	    BaseImporter& _bi, 
+	    Options& _opt);
+
+  bool can_u_read(const std::string& _filename) const;
+
+
+
+private:
+
+  bool can_u_read(std::istream& _is) const;
+
+  bool read(std::fstream& _in, BaseImporter& _bi, Options& _opt ) const;
+  bool read_ascii(std::fstream& _in, BaseImporter& _bi) const;
+  bool read_binary(std::fstream& _in, BaseImporter& _bi, bool swap) const;
+   
+  void readValue(std::fstream& _in, float& _value) const;
+  void readValue(std::fstream& _in, int& _value) const;
+  void readValue(std::fstream& _in, unsigned int& _value) const;
+
+  int getColorType(std::string & _line, bool _texCoordsAvailable) const;
+  
+  //available options for reading
+  mutable Options options_;
+  //options that the user wants to read
+  mutable Options userOptions_;
+};
+
+
+//== TYPE DEFINITION ==========================================================
+
+
+/// Declare the single entity of the OFF reader
+extern _OFFReader_  __OFFReaderInstance;
+_OFFReader_&  OFFReader();
+
+
+//=============================================================================
+} // namespace IO
+} // namespace OpenMesh
+//=============================================================================
+#endif
+//=============================================================================