File indexing completed on 2024-05-12 16:34:29 

0001 /* This file is part of the KDE project
0002  * Copyright (c) 2010 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 MORPHOLOGYEFFECT_H
0021 #define MORPHOLOGYEFFECT_H
0022 
0023 #include "KoFilterEffect.h"
0024 #include <QPointF>
0025 
0026 #define MorphologyEffectId "feMorphology"
0027 
0028 class KoFilterEffectLoadingContext;
0029 
0030 /// A morphology filter effect
0031 class MorphologyEffect : public KoFilterEffect
0032 {
0033 public:
0034     /// Morphology operator type
0035     enum Operator {
0036         Erode,
0037         Dilate
0038     };
0039 
0040     MorphologyEffect();
0041 
0042     /// Returns the morphology radius
0043     QPointF morphologyRadius() const;
0044 
0045     /// Sets the morphology radius
0046     void setMorphologyRadius(const QPointF &radius);
0047 
0048     /// Returns the morphology operator
0049     Operator morphologyOperator() const;
0050 
0051     /// Sets the morphology operator
0052     void setMorphologyOperator(Operator op);
0053 
0054     /// reimplemented from KoFilterEffect
0055     QImage processImage(const QImage &image, const KoFilterEffectRenderContext &context) const override;
0056     /// reimplemented from KoFilterEffect
0057     bool load(const KoXmlElement &element, const KoFilterEffectLoadingContext &context) override;
0058     /// reimplemented from KoFilterEffect
0059     void save(KoXmlWriter &writer) override;
0060 
0061 private:
0062     QPointF m_radius;
0063     Operator m_operator;
0064 };
0065 
0066 #endif // MORPHOLOGYEFFECT_H