206 lines
6.0 KiB
C++
206 lines
6.0 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.10 2006/03/29 08:16:31 corsini
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Minor change in LoadMask
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Revision 1.9 2006/03/27 07:17:49 cignoni
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Added generic LoadMask
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Revision 1.8 2006/03/07 13:19:29 cignoni
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First Release with OBJ import support
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Revision 1.7 2006/02/28 14:50:00 corsini
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Fix comments
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Revision 1.6 2006/02/10 16:14:53 corsini
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Fix typo
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Revision 1.5 2006/02/10 08:14:32 cignoni
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Refactored import. No more duplicated code
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Revision 1.4 2006/02/09 16:04:45 corsini
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Expose load mask
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Revision 1.3 2006/01/11 10:37:45 cignoni
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Added use of Callback
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Revision 1.2 2005/01/26 22:43:19 cignoni
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Add std:: to stl containers
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Revision 1.1 2004/11/29 08:12:10 cignoni
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Initial Update
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****************************************************************************/
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#ifndef __VCGLIB_IMPORT
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#define __VCGLIB_IMPORT
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#include <wrap/io_trimesh/import_obj.h>
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#include <wrap/io_trimesh/import_ply.h>
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#include <wrap/io_trimesh/import_stl.h>
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#include <wrap/io_trimesh/import_off.h>
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#include <locale>
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namespace vcg {
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namespace tri {
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namespace io {
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/**
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This class encapsulate a filter for automatically importing meshes by guessing
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the right filter according to the extension
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*/
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template <class OpenMeshType>
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class Importer
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{
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private:
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enum KnownTypes { KT_UNKNOWN, KT_PLY, KT_STL, KT_OFF, KT_OBJ };
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static int &LastType()
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{
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static int lastType= KT_UNKNOWN;
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return lastType;
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}
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public:
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// simple aux function that returns true if a given file has a given extesnion
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static bool FileExtension(std::string filename, std::string extension)
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{
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std::locale loc1 ;
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std::use_facet<std::ctype<char> > ( loc1 ).tolower(&*filename.begin(),&*filename.end());
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std::use_facet<std::ctype<char> > ( loc1 ).tolower(&*extension.begin(),&*extension.end());
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std::string end=filename.substr(filename.length()-extension.length(),extension.length());
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return end==extension;
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}
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// Open Mesh
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static int Open(OpenMeshType &m, const char *filename, CallBackPos *cb=0)
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{
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int dummymask = 0;
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return Open(m,filename,dummymask,cb);
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}
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// Open Mesh and return the load mask (the load mask must be initialized first)
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static int Open(OpenMeshType &m, const char *filename, int &loadmask, CallBackPos *cb=0)
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{
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int err;
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if(FileExtension(filename,"ply"))
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{
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err = ImporterPLY<OpenMeshType>::Open(m, filename, loadmask, cb);
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LastType()=KT_PLY;
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}
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else if(FileExtension(filename,"stl"))
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{
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err = ImporterSTL<OpenMeshType>::Open(m, filename, loadmask, cb);
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LastType()=KT_STL;
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}
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else if(FileExtension(filename,"off"))
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{
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err = ImporterOFF<OpenMeshType>::Open(m, filename, loadmask, cb);
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LastType()=KT_OFF;
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}
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else if(FileExtension(filename,"obj"))
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{
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err = ImporterOBJ<OpenMeshType>::Open(m, filename, loadmask, cb);
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LastType()=KT_OBJ;
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}
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else {
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err=1;
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LastType()=KT_UNKNOWN;
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}
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return err;
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}
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static bool ErrorCritical(int error)
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{
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switch(LastType())
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{
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case KT_PLY : return (error>0); break;
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case KT_STL : return (error>0); break;
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case KT_OFF : return (error>0); break;
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case KT_OBJ : return ImporterOBJ<OpenMeshType>::ErrorCritical(error); break;
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}
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return true;
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}
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static const char *ErrorMsg(int error)
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{
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switch(LastType())
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{
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case KT_PLY : return ImporterPLY<OpenMeshType>::ErrorMsg(error); break;
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case KT_STL : return ImporterSTL<OpenMeshType>::ErrorMsg(error); break;
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case KT_OFF : return ImporterOFF<OpenMeshType>::ErrorMsg(error); break;
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case KT_OBJ : return ImporterOBJ<OpenMeshType>::ErrorMsg(error); break;
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}
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return "Unknown type";
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}
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static bool LoadMask(const char * filename, int &mask)
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{
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bool err;
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if(FileExtension(filename,"ply"))
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{
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err = ImporterPLY<OpenMeshType>::LoadMask(filename, mask);
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LastType()=KT_PLY;
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}
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else if(FileExtension(filename,"stl"))
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{
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mask = Mask::IOM_VERTCOORD | Mask::IOM_FACEINDEX;
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err = true;
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LastType()=KT_STL;
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}
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else if(FileExtension(filename,"off"))
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{
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mask = Mask::IOM_VERTCOORD | Mask::IOM_FACEINDEX;
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err = ImporterOFF<OpenMeshType>::LoadMask(filename, mask);
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LastType()=KT_OFF;
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}
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else if(FileExtension(filename,"obj"))
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{
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err = ImporterOBJ<OpenMeshType>::LoadMask(filename, mask);
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LastType()=KT_OBJ;
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}
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else
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{
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err = false;
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LastType()=KT_UNKNOWN;
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}
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return err;
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}
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}; // end class
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} // end Namespace tri
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} // end Namespace io
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} // end Namespace vcg
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#endif
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