First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597

Core/IO/writer/BaseWriter.hh

@@ -0,0 +1,108 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               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 the baseclass for IOManager writer modules
+//
+//=============================================================================
+
+
+#ifndef __BASEWRITER_HH__
+#define __BASEWRITER_HH__
+
+
+//=== INCLUDES ================================================================
+
+
+// STD C++
+#include <iostream>
+#include <string>
+
+// OpenMesh
+#include <OpenMesh/Core/System/config.h>
+#include <OpenMesh/Core/IO/Options.hh>
+#include <OpenMesh/Core/IO/exporter/BaseExporter.hh>
+
+
+//== NAMESPACES ===============================================================
+
+
+namespace OpenMesh {
+namespace IO {
+
+
+//=== IMPLEMENTATION ==========================================================
+
+
+/**
+   Base class for all writer modules. The module should register itself at
+   the IOManager by calling the register_module function.
+*/
+class BaseWriter
+{
+public:
+
+  typedef unsigned int Option;
+   
+  /// Return short description of the supported file format.
+  virtual std::string get_description() const = 0;
+  
+  /// Return file format's extension.
+  virtual std::string get_extensions() const = 0;
+
+  /// Returns true if writer can parse _filename (checks extension)
+  virtual bool can_u_write(const std::string& _filename) const;
+
+  /// Write to file _filename. Data source specified by BaseExporter _be.
+  virtual bool write(const std::string& _filename, 
+		     BaseExporter& _be,
+                     Options _opt) const = 0;
+
+  /// Returns expected size of file if binary format is supported else 0.
+  virtual size_t binary_size(BaseExporter&, Options) const { return 0; }
+
+
+
+protected:
+
+  bool check(BaseExporter& _be, Options _opt) const
+  {
+    return (_opt.check(Options::VertexNormal ) <= _be.has_vertex_normals())
+       &&  (_opt.check(Options::VertexTexCoord)<= _be.has_vertex_texcoords())
+       &&  (_opt.check(Options::VertexColor)   <= _be.has_vertex_colors())
+       &&  (_opt.check(Options::FaceNormal)    <= _be.has_face_normals())
+       &&  (_opt.check(Options::FaceColor)     <= _be.has_face_colors());
+  }
+};
+
+
+//=============================================================================
+} // namespace IO
+} // namespace OpenMesh
+//=============================================================================
+#endif
+//=============================================================================