faithui/faith/imageeffect.h

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/* This file is part of the KDE libraries
 Copyright (C) 1998, 1999, 2001, 2002 Daniel M. Duley <mosfet@interaccess.com>
 (C) 1998, 1999 Christian Tibirna <ctibirna@total.net>
 (C) 1998, 1999 Dirk A. Mueller <mueller@kde.org>

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef FAITH__IMAGEEFFECT_H
#define FAITH__IMAGEEFFECT_H


#include <faith/ui.h>

namespace Faith
{

class Image;
class Size;
class Color;
class Point;
class Rect;

class FAITH_UI_EXPORT ImageEffect
{
public:
    enum GradientType
        {
                VerticalGradient,
                HorizontalGradient,
                DiagonalGradient,
                CrossDiagonalGradient,
                PyramidGradient,
                RectangleGradient,
                PipeCrossGradient,
                EllipticGradient
        };

    static Image gradient(const Size &size, const Color &ca,
                          const Color &cb, GradientType type, int ncols=3);

    static Image unbalancedGradient(
                        const Size &size, const Color &ca,
                        const Color &cb, GradientType type, int xfactor = 100,
                        int yfactor = 100, int ncols = 3
                );

        static Image& toGray(Image &image, bool fast = false);
};

}

#endif

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