opixmapeffect.h

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

*/

// $Id: opixmapeffect.h,v 1.3 2004/10/07 19:36:35 clem Exp $

#ifndef __OPIXMAP_EFFECT_H
#define __OPIXMAP_EFFECT_H


#include <qsize.h>
typedef QPixmap OPixmap;
class QColor;


namespace Opie {
namespace Ui   {
class OPixmapEffect
{
public:
    enum GradientType { VerticalGradient, HorizontalGradient,
                        DiagonalGradient, CrossDiagonalGradient,
                        PyramidGradient, RectangleGradient,
                        PipeCrossGradient, EllipticGradient };
    enum RGBComponent { Red, Green, Blue };

    enum Lighting {NorthLite, NWLite, WestLite, SWLite,
                   SouthLite, SELite, EastLite, NELite};

    static OPixmap& gradient(OPixmap& pixmap, const QColor &ca, const QColor &cb,
                            GradientType type, int ncols=3);

    static OPixmap& unbalancedGradient(OPixmap& pixmap, const QColor &ca,
                   const QColor &cb, GradientType type, int xfactor = 100,
                   int yfactor = 100, int ncols=3);

    static OPixmap createTiled(const OPixmap& pixmap, QSize size);

    static OPixmap& intensity(OPixmap& pixmap, float ratio);

    static OPixmap& channelIntensity(OPixmap& pixmap, float ratio,
                                    RGBComponent channel);

    static OPixmap& blend(OPixmap& pixmap, float initial_intensity,
                         const QColor &bgnd, GradientType eff,
                         bool anti_dir=false, int ncols=3);

    static OPixmap& hash(OPixmap& pixmap, Lighting lite=NorthLite,
                        unsigned int spacing=0, int ncols=3);

    static OPixmap pattern(const OPixmap& pixmap, QSize size,
                   const QColor &ca, const QColor &cb, int ncols=8);

    static OPixmap& fade(OPixmap& pixmap, double val, const QColor &color);

    static OPixmap& toGray(OPixmap& pixmap, bool fast=false);

    static OPixmap& desaturate(OPixmap& pixmap, float desat = 0.3);

    static OPixmap& contrast(OPixmap& pixmap, int c);

    static OPixmap& dither(OPixmap &pixmap, const QColor *palette, int size);

    static OPixmap selectedPixmap( const OPixmap &pixmap, const QColor &col );
};
}
}

#endif

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