koffice/chalk/core/kis_gradient_painter.h

/*
 *  Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
 *
 *  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_GRADIENT_PAINTER_H_
#define KIS_GRADIENT_PAINTER_H_

#include <kcommand.h>

#include "kis_global.h"
#include "kis_types.h"
#include "kis_point.h"
#include "kis_painter.h"
#include <koffice_export.h>

class KisGradient;


// XXX: Need to set dirtyRect in KisPainter
class KRITACORE_EXPORT KisGradientPainter : public KisPainter
{

    typedef KisPainter super;

public:

        KisGradientPainter();
        KisGradientPainter(KisPaintDeviceSP device);


    enum enumGradientShape {
        GradientShapeLinear,
        GradientShapeBiLinear,
        GradientShapeRadial,
        GradientShapeSquare,
        GradientShapeConical,
        GradientShapeConicalSymetric
    };

    enum enumGradientRepeat {
        GradientRepeatNone,
        GradientRepeatForwards,
        GradientRepeatAlternate
    };

    void setGradient(KisGradient& gradient) { m_gradient = &gradient; }
    void setGradient(KisGradient* gradient) { m_gradient = gradient; }

    /**
     * Paint a gradient in the rect between startx, starty, width and height.
     * XXX: What does the returned bool mean?
     * XXX: Make cs-independent
     */
    bool paintGradient(const KisPoint& gradientVectorStart,
               const KisPoint& gradientVectorEnd,
               enumGradientShape shape,
               enumGradientRepeat repeat,
               double antiAliasThreshold,
               bool reverseGradient,
               TQ_INT32 startx,
               TQ_INT32 starty,
               TQ_INT32 width,
               TQ_INT32 height);


private:
    KisGradient *m_gradient;


};
#endif //KIS_GRADIENT_PAINTER_H_