kpixmapeffect.h

/* 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 Mueller <mueller@kde.org>
 
*/
 
// $Id$
 
#ifndef __KPIXMAP_EFFECT_H
#define __KPIXMAP_EFFECT_H
 
#include <tdelibs_export.h>
 
#include <tqsize.h>
class KPixmap;
class TQColor;

class TDEFX_EXPORT KPixmapEffect
{
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 KPixmap& gradient(KPixmap& pixmap, const TQColor &ca, const TQColor &cb,
                            GradientType type, int ncols=3);

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

    static KPixmap createTiled(const KPixmap& pixmap, TQSize size);

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

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

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

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

    static KPixmap pattern(const KPixmap& pixmap, TQSize size,
                   const TQColor &ca, const TQColor &cb, int ncols=8);

    static KPixmap& fade(KPixmap& pixmap, double val, const TQColor &color);

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

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

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

    static KPixmap& dither(KPixmap &pixmap, const TQColor *palette, int size);

    static KPixmap selectedPixmap( const KPixmap &pixmap, const TQColor &col );
};
 
 
#endif