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0001 /*
0002  *  Copyright (c) 2007 Cyrille Berger <cberger@cberger.net>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Lesser General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2.1 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Lesser General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Lesser General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 
0020 #ifndef _KO_FALL_BACK_COLOR_TRANSFORMATION_H_
0021 #define _KO_FALL_BACK_COLOR_TRANSFORMATION_H_
0022 
0023 #include "KoColorTransformation.h"
0024 
0025 #include "pigment_export.h"
0026 
0027 class KoColorSpace;
0028 class KoColorConversionTransformation;
0029 
0030 /**
0031  * Use this color transformation to encapsulate another KoColorTransformation
0032  * and perform a color conversion before and after using that KoColorTransformation.
0033  */
0034 class PIGMENTCMS_EXPORT KoFallBackColorTransformation : public KoColorTransformation
0035 {
0036 public:
0037     /**
0038      * Create a fall back color transformation using the given two color
0039      * spaces. This constructor will initialize his own color conversion
0040      * objects.
0041      *
0042      * The created object takes owner ship of the transformation and will
0043      * take charge of deleting it.
0044      *
0045      * @param cs color space of the source and destination pixels
0046      * @param fallBackCS color space use natively by the color transformation
0047      * @param transfo the color transformation (working in the fallback color space)
0048      */
0049     KoFallBackColorTransformation(const KoColorSpace* _cs, const KoColorSpace* _fallBackCS, KoColorTransformation* _transfo);
0050     /**
0051      * Creates a fall back color transformation using the two transformations
0052      * given as parameters. The created object take ownership of the
0053      * conversion and the color transformations and will be in charge of
0054      * deleting them.
0055      *
0056      * @param csToFallBack transformation from the color space to the fallback
0057      * @param fallBackToCs transformation from the fallback to the color space
0058      * @param transfo the color transformation (working in the fallback color space)
0059      */
0060     KoFallBackColorTransformation(KoColorConversionTransformation* _csToFallBack, KoColorConversionTransformation* _fallBackToCs, KoColorTransformation* _transfo);
0061     ~KoFallBackColorTransformation() override;
0062     void transform(const quint8 *src, quint8 *dst, qint32 nPixels) const override;
0063     QList<QString> parameters() const override;
0064     int parameterId(const QString& name) const override;
0065     void setParameter(int id, const QVariant& parameter) override;
0066 private:
0067     struct Private;
0068     Private* const d;
0069 };
0070 
0071 #endif