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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
****************************************************************************/
#ifndef __VCGLIB_TETRA_IMPORT
#define __VCGLIB_TETRA_IMPORT
#include <wrap/io_tetramesh/import_ply.h>
#include <wrap/io_tetramesh/import_msh.h>
#include <locale>
namespace vcg {
namespace tetra {
namespace io {
/**
This class encapsulate a filter for automatically importing meshes by guessing
the right filter according to the extension
*/
template <class OpenMeshType>
class Importer
{
private:
enum KnownTypes { KT_UNKNOWN, KT_PLY, KT_MSH };
static int &LastType()
{
static int lastType= KT_UNKNOWN;
return lastType;
}
public:
enum ImporterError {
E_NOERROR =0 // No error =0 is the standard for ALL the imported files.
};
// simple aux function that returns true if a given file has a given extesnion
static bool FileExtension(std::string filename, std::string extension)
{
std::transform(filename.begin(), filename.end(), filename.begin(), ::tolower);
std::transform(extension.begin(), extension.end(), extension.begin(), ::tolower);
std::string end=filename.substr(filename.length() - extension.length(), extension.length());
return end == extension;
}
// Open Mesh, returns 0 on success.
static int Open(OpenMeshType &m, const char *filename, CallBackPos *cb=0)
{
int dummymask = 0;
return Open(m, filename, dummymask, cb);
}
/// Open Mesh and fills the load mask (the load mask must be initialized first); returns 0 on success.
static int Open(OpenMeshType &m, const char *filename, int &loadmask, CallBackPos *cb=0)
{
int err;
if(FileExtension(filename,"ply"))
{
err = tetra::io::ImporterPLY<OpenMeshType>::Open(m, filename, loadmask, cb);
LastType()=KT_PLY;
}
else if(FileExtension(filename,"msh"))
{
err = tetra::io::ImporterMSH<OpenMeshType>::Open(m, filename, cb);
LastType()=KT_MSH;
}
else
{
err=1;
LastType()=KT_UNKNOWN;
}
return err;
}
static bool ErrorCritical(int error)
{
switch(LastType())
{
case KT_PLY : return (error > 0); break;
case KT_MSH : return (error > 0); break;
}
return true;
}
static const char *ErrorMsg(int error)
{
switch(LastType())
{
// case KT_PLY : return ImporterPLY<OpenMeshType>::ErrorMsg(error); break;
// case KT_STL : return ImporterSTL<OpenMeshType>::ErrorMsg(error); break;
// case KT_OFF : return ImporterOFF<OpenMeshType>::ErrorMsg(error); break;
// case KT_OBJ : return ImporterOBJ<OpenMeshType>::ErrorMsg(error); break;
// case KT_VMI : return ImporterVMI<OpenMeshType>::ErrorMsg(error); break;
}
return "Unknown type";
}
static bool LoadMask(const char * filename, int &mask)
{
bool err;
if(FileExtension(filename, "ply"))
{
err = tetra::io::ImporterPLY<OpenMeshType>::LoadMask(filename, mask);
LastType() = KT_PLY;
}
else if(FileExtension(filename, "msh"))
{
mask = Mask::IOM_VERTCOORD | Mask::IOM_TETRAINDEX;
err = true;
LastType() = KT_MSH;
}
else
{
err = false;
LastType()=KT_UNKNOWN;
}
return err;
}
}; // end class
} // end Namespace tetra
} // end Namespace io
} // end Namespace vcg
#endif
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