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piece_image_effect.h

/*
 *   EasySok --- A(nother) sokoban game for KDE.
 *
 *   Copyright (C) 2001 by Ralf Schmelter (ralfs@pc2a.chemie.uni-dortmund.de).
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2 as
 *   published by the Free Software Foundation.
 *
 *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#ifndef EASYSOK_PIECE_IMAGE_EFFECT_INC_GUARD_H
#define EASYSOK_PIECE_IMAGE_EFFECT_INC_GUARD_H


#include <vector>

#include <qimage.h>


class QDomElement;




class PieceImageEffect
{

public:

    PieceImageEffect();


    PieceImageEffect(QDomElement const & dom_element);


    QImage apply(QImage const & image) const;


    bool operator == (PieceImageEffect const & other_effect) const;


private:

    enum EffectType
    {
        MOVE,


        ROTATE_LEFT,


        ROTATE_RIGHT,


        UTURN,


        HMIRROR,


        VMIRROR,


        BLEND_RGB,


        BLEND_RGBA,


        BLEND_ALPHA,


        COLORIZE,


        SCALE,


        CROP
    };


    void putFactor(QDomElement const & element, QString const & name, int scale);


    void putColor(QDomElement const & element);


    void rotate90(QImage & image) const;


    void rotate180(QImage & image) const;


    void rotate270(QImage & image) const;


    void horizontalMirror(QImage & image) const;


    void verticalMirror(QImage & image) const;


    void blendRgb(QImage & image, int factor, int red, int green, int blue) const;


    void blendRgba(QImage & image, int factor, int red, int green, int blue, int alpha) const;


    void blendAlpha(QImage & image, int factor, int alpha) const;


    void colorize(QImage & image, int factor, int red, int green, int blue) const;


    void crop(QImage & image, int x_offset, int y_offset, int width, int height) const;


    void move(QImage & image, int x_offset, int y_offset) const;


    void scale(QImage & image, int width, int height) const;


    std::vector<int> m_effects;


    std::vector<int> m_parameters;
};


#endif

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