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tdegraphics/kghostview/dscparse/dscparse_adapter.cpp

419 lines
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/**
* Copyright (C) 2001 the KGhostView authors. See file AUTHORS.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "dscparse_adapter.h"
using namespace std;
/*-- KDSCBBOX implementation -----------------------------------------------*/
KDSCBBOX::KDSCBBOX() :
_llx( 0 ), _lly( 0 ),
_urx( 0 ), _ury( 0 )
{}
KDSCBBOX::KDSCBBOX( const KDSCBBOX& b ) :
_llx( b._llx ), _lly( b._lly ),
_urx( b._urx ), _ury( b._ury )
{}
KDSCBBOX::KDSCBBOX( int llx, int lly, int urx, int ury ) :
_llx( llx ), _lly( lly ),
_urx( urx ), _ury( ury )
{}
KDSCBBOX::KDSCBBOX( const CDSCBBOX& bbox ) :
_llx( bbox.llx ), _lly( bbox.lly ),
_urx( bbox.urx ), _ury( bbox.ury )
{}
KDSCBBOX& KDSCBBOX::operator = ( const KDSCBBOX& b )
{
_llx = b._llx; _lly = b._lly; _urx = b._urx; _ury = b._ury;
return *this;
}
bool KDSCBBOX::operator == ( const KDSCBBOX& b )
{
return ( _llx == b._llx && _lly == b._lly
&& _urx == b._urx && _ury == b._ury );
}
bool KDSCBBOX::operator != ( const KDSCBBOX& b )
{
return !( *this == b );
}
int KDSCBBOX::llx() const { return _llx; }
int KDSCBBOX::lly() const { return _lly; }
int KDSCBBOX::urx() const { return _urx; }
int KDSCBBOX::ury() const { return _ury; }
int KDSCBBOX::width() const { return _urx - _llx; }
int KDSCBBOX::height() const { return _ury - _lly; }
TQSize KDSCBBOX::size() const { return TQSize( width(), height() ); }
ostream& operator << ( ostream& os, const KDSCBBOX& source )
{
os << "{ llx: "<< source.llx() << ", lly: " << source.lly()
<< " urx: "<< source.urx() << ", ury: " << source.ury() << " }";
return os;
}
/*-- KDSCError implementation ----------------------------------------------*/
KDSCError::KDSCError( Type type, Severity severity, const TQCString& line,
unsigned int lineNumber ) :
_type( type ),
_severity( severity ),
_line( line ),
_lineNumber( lineNumber )
{}
KDSCError::Type KDSCError::type() const
{
return _type;
}
KDSCError::Severity KDSCError::severity() const
{
return _severity;
}
TQCString KDSCError::line() const
{
return _line;
}
unsigned int KDSCError::lineNumber() const
{
return _lineNumber;
}
/*-- KDSCOkErrorHandler implementation -------------------------------------*/
KDSCErrorHandler::Response KDSCOkErrorHandler::error( const KDSCError& err )
{
cout << "KDSC: error in line " << err.lineNumber() << endl;
cout << err.line().data() << endl;
return Ok;
}
/*-- KDSC implementation ---------------------------------------------------*/
KDSC::KDSC() :
_errorHandler( 0 ),
_commentHandler( 0 )
{
_cdsc = dsc_init( this );
Q_ASSERT( _cdsc != 0 );
_scanHandler = new KDSCScanHandler( _cdsc );
}
KDSC::~KDSC()
{
dsc_free( _cdsc );
delete _scanHandler;
}
TQString KDSC::dsc_version() const
{
return TQString( _cdsc->dsc_version );
}
bool KDSC::dsc() const
{
return ( _cdsc->dsc == TRUE );
}
bool KDSC::ctrld() const
{
return ( _cdsc->ctrld == TRUE );
}
bool KDSC::pjl() const
{
return ( _cdsc->pjl == TRUE );
}
bool KDSC::epsf() const
{
return ( _cdsc->epsf == TRUE );
}
bool KDSC::pdf() const
{
return ( _cdsc->pdf == TRUE );
}
unsigned int KDSC::preview() const
{
return _cdsc->preview;
}
unsigned int KDSC::language_level() const
{
return _cdsc->language_level;
}
unsigned int KDSC::document_data() const
{
return _cdsc->document_data;
}
unsigned long KDSC::begincomments() const
{
return _cdsc->begincomments;
}
unsigned long KDSC::endcomments() const
{
return _cdsc->endcomments;
}
unsigned long KDSC::beginpreview() const
{
return _cdsc->beginpreview;
}
unsigned long KDSC::endpreview() const
{
return _cdsc->endpreview;
}
unsigned long KDSC::begindefaults() const
{
return _cdsc->begindefaults;
}
unsigned long KDSC::enddefaults() const
{
return _cdsc->enddefaults;
}
unsigned long KDSC::beginprolog() const
{
return _cdsc->beginprolog;
}
unsigned long KDSC::endprolog() const
{
return _cdsc->endprolog;
}
unsigned long KDSC::beginsetup() const
{
return _cdsc->beginsetup;
}
unsigned long KDSC::endsetup() const
{
return _cdsc->endsetup;
}
unsigned long KDSC::begintrailer() const
{
return _cdsc->begintrailer;
}
unsigned long KDSC::endtrailer() const
{
return _cdsc->endtrailer;
}
CDSCPAGE* KDSC::page() const
{
return _cdsc->page;
}
unsigned int KDSC::page_count() const
{
return _cdsc->page_count;
}
unsigned int KDSC::page_pages() const
{
return _cdsc->page_pages;
}
unsigned int KDSC::page_order() const
{
return _cdsc->page_order;
}
unsigned int KDSC::page_orientation() const
{
return _cdsc->page_orientation;
}
CDSCCTM* KDSC::viewing_orientation() const
{
return _cdsc->viewing_orientation;
}
unsigned int KDSC::media_count() const
{
return _cdsc->media_count;
}
CDSCMEDIA** KDSC::media() const
{
return _cdsc->media;
}
const CDSCMEDIA* KDSC::page_media() const
{
return _cdsc->page_media;
}
auto_ptr<KDSCBBOX> KDSC::bbox() const
{
if( _cdsc->bbox == 0 )
return auto_ptr<KDSCBBOX>( 0 );
else
return auto_ptr<KDSCBBOX>( new KDSCBBOX( *_cdsc->bbox ) );
}
auto_ptr<KDSCBBOX> KDSC::page_bbox() const
{
if( _cdsc->page_bbox == 0 )
return auto_ptr<KDSCBBOX>( 0 );
else
return auto_ptr<KDSCBBOX>( new KDSCBBOX( *_cdsc->page_bbox ) );
}
TQString KDSC::dsc_title() const
{
return TQString( _cdsc->dsc_title );
}
TQString KDSC::dsc_creator() const
{
return TQString( _cdsc->dsc_creator );
}
TQString KDSC::dsc_date() const
{
return TQString( _cdsc->dsc_date );
}
TQString KDSC::dsc_for() const
{
return TQString( _cdsc->dsc_for );
}
bool KDSC::scanData( char* buffer, unsigned int count )
{
return _scanHandler->scanData( buffer, count );
}
int KDSC::fixup()
{
return dsc_fixup( _cdsc );
}
KDSCErrorHandler* KDSC::errorHandler() const
{
return _errorHandler;
}
void KDSC::setErrorHandler( KDSCErrorHandler* errorHandler )
{
_errorHandler = errorHandler;
if( errorHandler == 0 )
dsc_set_error_function( _cdsc, 0 );
else
dsc_set_error_function( _cdsc, &errorFunction );
}
KDSCCommentHandler* KDSC::commentHandler() const
{
return _commentHandler;
}
void KDSC::setCommentHandler( KDSCCommentHandler* commentHandler )
{
if( _commentHandler != 0 && commentHandler == 0 )
{
delete _scanHandler;
_scanHandler = new KDSCScanHandler( _cdsc );
}
else if( _commentHandler == 0 && commentHandler != 0 )
{
delete _scanHandler;
_scanHandler = new KDSCScanHandlerByLine( _cdsc, commentHandler );
}
_commentHandler = commentHandler;
}
bool KDSC::isStructured() const
{
return epsf() ? ( page_count() > 1 ) : ( page_count() > 0 );
}
CDSC* KDSC::cdsc() const
{
return _cdsc;
}
int KDSC::errorFunction( void* caller_data, CDSC* dsc,
unsigned int explanation, const char* line, unsigned int line_len )
{
KDSCError error(
static_cast< KDSCError::Type >( explanation ),
static_cast< KDSCError::Severity >( dsc->severity[explanation] ),
TQCString( line, line_len + 1 ),
dsc->line_count
);
KDSC* kdsc = static_cast< KDSC* >( caller_data );
Q_ASSERT( kdsc );
return kdsc->errorHandler()->error( error );
}
bool KDSCScanHandlerByLine::scanData( char* buf, unsigned int count )
{
char* lineStart = buf;
char* it = buf;
while( it < buf + count )
{
if( *it++ == '\n' )
{
int retval = dsc_scan_data( _cdsc, lineStart, it - lineStart );
if( retval < 0 )
return false;
else if( retval > 0 )
{
_commentHandler->comment(
static_cast<KDSCCommentHandler::Name>( retval ) );
}
lineStart = it;
}
}
if( it != lineStart )
{
// Scan the remaining part of the string.
return ( dsc_scan_data( _cdsc, lineStart, it - lineStart ) < 0 );
}
else
return true;
}