svgpathparser.h

/* This file is part of the KDE project
   Copyright (C) 2002, 2003 The Karbon Developers
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#ifndef __SVGPATHPARSER_H__
#define __SVGPATHPARSER_H__
 
class TQString;
 
#include <koffice_export.h>
class KOPAINTER_EXPORT SVGPathParser
{
public:
    virtual ~SVGPathParser(){}
    void parseSVG( const TQString &d, bool process = false );
 
protected:
    virtual void svgMoveTo( double x1, double y1, bool abs = true ) = 0;
    virtual void svgLineTo( double x1, double y1, bool abs = true ) = 0;
    virtual void svgLineToHorizontal( double x, bool abs = true );
    virtual void svgLineToVertical( double y, bool abs = true );
    virtual void svgCurveToCubic( double x1, double y1, double x2, double y2, double x, double y, bool abs = true ) = 0;
    virtual void svgCurveToCubicSmooth( double x, double y, double x2, double y2, bool abs = true );
    virtual void svgCurveToQuadratic( double x, double y, double x1, double y1, bool abs = true );
    virtual void svgCurveToQuadraticSmooth( double x, double y, bool abs = true );
    virtual void svgArcTo( double x, double y, double r1, double r2, double angle, bool largeArcFlag, bool sweepFlag, bool abs = true );
    virtual void svgClosePath() = 0;
 
private:
    const char *getCoord( const char *, double & );
    void calculateArc( bool relative, double &curx, double &cury, double angle, double x, double y, double r1, double r2, bool largeArcFlag, bool sweepFlag );
};
 
#endif