shape_file_io.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 CERN
 * Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Tomasz Wlostowski <[email protected]>
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <cassert>
#include <string>
 
#include <geometry/shape.h>
#include <geometry/shape_file_io.h>
 
 
SHAPE_FILE_IO::SHAPE_FILE_IO()
{
 m_groupActive = false;
 m_mode = IOM_WRITE;
 m_file = stdout;
}
 
 
SHAPE_FILE_IO::SHAPE_FILE_IO( const std::string& aFilename, SHAPE_FILE_IO::IO_MODE aMode )
{
 m_groupActive = false;
 
 if( aFilename.length() )
 {
 switch( aMode )
 {
 case IOM_READ: m_file = fopen( aFilename.c_str(), "rb" ); break;
 case IOM_WRITE: m_file = fopen( aFilename.c_str(), "wb" ); break;
 case IOM_APPEND: m_file = fopen( aFilename.c_str(), "ab" ); break;
 default:
 return;
 }
 }
 else
 {
 m_file = nullptr;
 }
 
 m_mode = aMode;
 // fixme: exceptions
}
 
 
SHAPE_FILE_IO::~SHAPE_FILE_IO()
{
 if( !m_file )
 return;
 
 if( m_groupActive && m_mode != IOM_READ )
 fprintf( m_file, "endgroup\n" );
 
 if ( m_file != stdout )
 {
 fclose( m_file );
 }
}
 
 
SHAPE* SHAPE_FILE_IO::Read()
{
 /* char tmp[1024];
 
 do {
 
 if (fscanf(m_file, "%s", tmp) != 1)
 return nullptr;
 
 if( !strcmp( tmp, "shape" )
 break;
 }
 
 int type;
 
 SHAPE *rv = nullptr;
 
 fscanf(m_file,"%d %s", &type, tmp);
 
 switch(type)
 {
 case SHAPE::LINE_CHAIN:
 rv = new SHAPE_LINE_CHAIN;
 break;
 }
 
 if(!rv)
 return nullptr;
 
 rv.Parse ( )
 
 fprintf(m_file,"shape %d %s %s\n", aShape->Type(), aName.c_str(), sh.c_str() );
*/
 assert( false );
 return nullptr;
}
 
 
void SHAPE_FILE_IO::BeginGroup( const std::string& aName )
{
 assert( m_mode != IOM_READ );
 
 if( !m_file )
 return;
 
 fprintf( m_file, "group %s\n", aName.c_str() );
 m_groupActive = true;
}
 
 
void SHAPE_FILE_IO::EndGroup()
{
 assert( m_mode != IOM_READ );
 
 if( !m_file || !m_groupActive )
 return;
 
 fprintf( m_file, "endgroup\n" );
 m_groupActive = false;
}
 
 
void SHAPE_FILE_IO::Write( const SHAPE* aShape, const std::string& aName )
{
 assert( m_mode != IOM_READ );
 
 if( !m_file )
 return;
 
 if( !m_groupActive )
 fprintf( m_file,"group default\n" );
 
 std::string sh = aShape->Format();
 
 fprintf( m_file, "shape %d %s %s\n", aShape->Type(), aName.c_str(), sh.c_str() );
 fflush( m_file );
}