97f515985d
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
114 lines
4.3 KiB
C++
114 lines
4.3 KiB
C++
/*===========================================================================*\
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* *
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* OpenMesh *
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* Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen *
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* www.openmesh.org *
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* *
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*---------------------------------------------------------------------------*
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* *
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* License *
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* *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published *
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* by the Free Software Foundation, version 2.1. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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* *
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\*===========================================================================*/
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//=============================================================================
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//
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// Implements the baseclass for IOManager file access modules
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//
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//=============================================================================
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#ifndef __BASEREADER_HH__
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#define __BASEREADER_HH__
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//=== INCLUDES ================================================================
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// STD C++
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#include <iostream>
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#include <string>
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// OpenMesh
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#include <OpenMesh/Core/System/config.h>
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#include <OpenMesh/Core/IO/Options.hh>
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#include <OpenMesh/Core/IO/importer/BaseImporter.hh>
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#include <OpenMesh/Core/Utils/SingletonT.hh>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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namespace IO {
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//=== IMPLEMENTATION ==========================================================
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/**
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Base class for reader modules.
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Reader modules access persistent data and pass them to the desired
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data structure by the means of a BaseImporter derivative.
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All reader modules must be derived from this class.
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*/
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class BaseReader
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{
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public:
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/// Returns a brief description of the file type that can be parsed.
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virtual std::string get_description() const = 0;
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/** Returns a string with the accepted file extensions separated by a
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whitespace and in small caps.
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*/
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virtual std::string get_extensions() const = 0;
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/// Return magic bits used to determine file format
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virtual std::string get_magic() const { return std::string(""); }
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/** Reads a mesh given by a filename. Usually this method opens a stream
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and passes it to stream read method. Acceptance checks by filename
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extension can be placed here.
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Options can be passed via _opt. After execution _opt contains the Options
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that were available
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*/
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virtual bool read(const std::string& _filename,
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BaseImporter& _bi,
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Options& _opt) = 0;
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/// Returns true if reader can parse _filename (checks extension)
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virtual bool can_u_read(const std::string& _filename) const;
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protected:
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// case insensitive search for _ext in _fname.
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bool check_extension(const std::string& _fname,
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const std::string& _ext) const;
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};
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//=============================================================================
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} // namespace IO
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} // namespace OpenMesh
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//=============================================================================
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#endif
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//=============================================================================
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