File indexing completed on 2024-05-12 16:34:28 

0001 /* This file is part of the KDE project
0002  * Copyright (c) 2009 Jan Hambrecht <jaham@gmx.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  * Library 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 COMPOSITEEFFECT_H
0021 #define COMPOSITEEFFECT_H
0022 
0023 #include "KoFilterEffect.h"
0024 
0025 #define CompositeEffectId "feComposite"
0026 
0027 /// A flood fill effect
0028 class CompositeEffect : public KoFilterEffect
0029 {
0030 public:
0031     enum Operation {
0032         CompositeOver,
0033         CompositeIn,
0034         CompositeOut,
0035         CompositeAtop,
0036         CompositeXor,
0037         Arithmetic
0038     };
0039 
0040     CompositeEffect();
0041 
0042     /// Returns the composite operation
0043     Operation operation() const;
0044 
0045     /// Sets the composite operation
0046     void setOperation(Operation op);
0047 
0048     /// Returns the arithmetic values
0049     const qreal * arithmeticValues() const;
0050 
0051     /// Sets the arithmetic values
0052     void setArithmeticValues(qreal * values);
0053 
0054     /// reimplemented from KoFilterEffect
0055     QImage processImage(const QImage &image, const KoFilterEffectRenderContext &context) const override;
0056     /// reimplemented from KoFilterEffect
0057     QImage processImages(const QVector<QImage> &images, const KoFilterEffectRenderContext &context) const override;
0058     /// reimplemented from KoFilterEffect
0059     bool load(const KoXmlElement &element, const KoFilterEffectLoadingContext &context) override;
0060     /// reimplemented from KoFilterEffect
0061     void save(KoXmlWriter &writer) override;
0062 
0063 private:
0064     Operation m_operation;
0065     qreal m_k[4];
0066 };
0067 
0068 #endif // COMPOSITEEFFECT_H