F:/KPlato/koffice/libs/pigment/KoCompositeOp.h

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/*
 *  Copyright (c) 2005 Adrian Page <adrian@pagenet.plus.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
#ifndef KOCOMPOSITEOP_H
#define KOCOMPOSITEOP_H

#include <QtCore>

#include <koffice_export.h>

class KoColorSpace;

const QString COMPOSITE_OVER = "normal";
const QString COMPOSITE_ERASE = "erase";
const QString COMPOSITE_COPY = "copy";
const QString COMPOSITE_ALPHA_DARKEN = "alphadarken";
const QString COMPOSITE_IN = "in";
const QString COMPOSITE_OUT = "out";
const QString COMPOSITE_ATOP = "atop";
const QString COMPOSITE_XOR = "xor";
const QString COMPOSITE_PLUS = "plus";
const QString COMPOSITE_MINUS = "minus";
const QString COMPOSITE_ADD = "add";
const QString COMPOSITE_SUBTRACT = "subtract";
const QString COMPOSITE_DIFF = "diff";
const QString COMPOSITE_MULT = "multiply";
const QString COMPOSITE_DIVIDE = "divide";
const QString COMPOSITE_DODGE = "dodge";
const QString COMPOSITE_BURN = "burn";
const QString COMPOSITE_BUMPMAP = "bumpmap";
const QString COMPOSITE_CLEAR = "clear";
const QString COMPOSITE_DISSOLVE = "dissolve";
const QString COMPOSITE_DISPLACE = "displace";
const QString COMPOSITE_NO = "nocomposition";
const QString COMPOSITE_DARKEN = "darken";
const QString COMPOSITE_LIGHTEN = "lighten";
const QString COMPOSITE_HUE = "hue";
const QString COMPOSITE_SATURATION = "saturation";
const QString COMPOSITE_VALUE = "value";
const QString COMPOSITE_COLOR = "color";
const QString COMPOSITE_COLORIZE = "colorize";
const QString COMPOSITE_LUMINIZE = "luminize";
const QString COMPOSITE_SCREEN = "screen";
const QString COMPOSITE_OVERLAY = "overlay";
const QString COMPOSITE_UNDEF = "underfined";
const QString COMPOSITE_COPY_RED = "copy_red";
const QString COMPOSITE_COPY_GREEN = "copy_green";
const QString COMPOSITE_COPY_BLUE = "copy_blue";
const QString COMPOSITE_COPY_OPACITY = "copy_opacity";

class PIGMENT_EXPORT KoCompositeOp {
public:

    KoCompositeOp(KoColorSpace * cs, const QString& id, const QString& description, const bool userVisible = true);
    virtual ~KoCompositeOp() {};

    QString id() const { return m_id; }
    QString description() const { return m_description; }
    KoColorSpace * colorSpace() const { return m_colorSpace; }
    bool userVisible() const { return m_userVisible; }
    virtual void composite(quint8 *dstRowStart, qint32 dstRowStride, 
                           const quint8 *srcRowStart, qint32 srcRowStride, 
                           const quint8 *maskRowStart, qint32 maskRowStride, 
                           qint32 rows, qint32 numColumns, 
                           quint8 opacity) const;

    virtual void composite(quint8 *dstRowStart, qint32 dstRowStride, 
                           const quint8 *srcRowStart, qint32 srcRowStride, 
                           const quint8 *maskRowStart, qint32 maskRowStride, 
                           qint32 rows, qint32 numColumns, 
                           quint8 opacity,
                           const QBitArray & channelFlags) const = 0;

protected:
    KoCompositeOp();

    KoColorSpace * m_colorSpace;
    QString m_id;
    QString m_description;
    mutable QBitArray m_defaultChannelFlags;
    bool m_userVisible;
};

typedef QList<KoCompositeOp*> KoCompositeOpList;

#endif // KOCOMPOSITEOP_H

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