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/*
* kis_tool_bezier.h -- part of Chalk
*
* Copyright (c) 2006 Emanuele Tamponi <emanuele@valinor.it>
*
* 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.
*/
#ifndef KIS_TOOL_BEZIER_H_
#define KIS_TOOL_BEZIER_H_
#include "kis_tool_factory.h"
#include "kis_tool_curve.h"
#include "kis_point.h"
class CurvePoint;
class KisPoint;
class KisCanvas;
class KisCurve;
class KisPainter;
class KisPoint;
const int BEZIERENDHINT = 0x0010;
const int BEZIERPREVCONTROLHINT = 0x0020;
const int BEZIERNEXTCONTROLHINT = 0x0040;
const int SYMMETRICALCONTROLSOPTION = ALTOPTION;
const int PREFERCONTROLSOPTION = SHIFTOPTION;
class KisCurveBezier : public KisCurve {
typedef KisCurve super;
void recursiveCurve (const KisPoint& P1, const KisPoint& P2, const KisPoint& P3,
const KisPoint& P4, int level, iterator it);
KisPoint midpoint (const KisPoint&, const KisPoint&);
int m_maxLevel;
public:
KisCurveBezier() : super() {m_maxLevel = 5;}
~KisCurveBezier() {}
virtual void calculateCurve(iterator, iterator, iterator);
virtual iterator pushPivot(const KisPoint&);
virtual iterator movePivot(iterator, const KisPoint&);
virtual void deletePivot(iterator);
public:
iterator groupEndpoint (iterator) const;
iterator groupPrevControl (iterator) const;
iterator groupNextControl (iterator) const;
bool groupSelected (iterator) const;
iterator nextGroupEndpoint (iterator) const;
iterator prevGroupEndpoint (iterator) const;
};
class KisToolBezier : public KisToolCurve {
typedef KisToolCurve super;
Q_OBJECT
public:
KisToolBezier(const TQString&);
virtual ~KisToolBezier();
protected:
virtual KisCurve::iterator handleUnderMouse(const TQPoint& pos);
virtual void drawPivotHandle(KisCanvasPainter& gc, KisCurve::iterator point);
virtual KisCurve::iterator drawPoint(KisCanvasPainter& gc, KisCurve::iterator point);
protected:
KisCurveBezier *m_derivated;
};
#endif //__KIS_TOOL_BEZIER_H__
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