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/*
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* This file is part of the KDE project
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*
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* Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "wavefilter.h"
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#include <stdlib.h>
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#include <vector>
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#include <tqpoint.h>
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#include <kcombobox.h>
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#include <kdebug.h>
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#include <kgenericfactory.h>
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#include <kiconloader.h>
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#include <kinstance.h>
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#include <klocale.h>
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#include <kmessagebox.h>
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#include <knuminput.h>
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#include <kstandarddirs.h>
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#include <ktempfile.h>
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#include <kis_image.h>
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#include <kis_iterators_pixel.h>
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#include <kis_filter_registry.h>
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#include <kis_global.h>
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#include <kis_layer.h>
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#include <kis_random_sub_accessor.h>
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#include <kis_types.h>
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#include "kis_wdg_wave.h"
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#include "wdgwaveoptions.h"
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typedef KGenericFactory<ChalkWaveFilter> ChalkWaveFilterFactory;
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K_EXPORT_COMPONENT_FACTORY( chalkwavefilter, ChalkWaveFilterFactory( "chalk" ) )
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class KisWaveCurve {
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public:
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virtual double valueAt(int x, int y) =0;
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};
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class KisSinusoidalWaveCurve : public KisWaveCurve {
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public:
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KisSinusoidalWaveCurve(int amplitude, int wavelength, int shift) : m_amplitude(amplitude), m_wavelength(wavelength), m_shift(shift)
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{
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}
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virtual double valueAt(int x, int y)
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{
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return y + m_amplitude * cos( (double) ( m_shift + x) / m_wavelength );
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}
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private:
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int m_amplitude, m_wavelength, m_shift;
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};
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class KisTriangleWaveCurve : public KisWaveCurve {
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public:
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KisTriangleWaveCurve(int amplitude, int wavelength, int shift) : m_amplitude(amplitude), m_wavelength(wavelength), m_shift(shift)
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{
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}
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virtual double valueAt(int x, int y)
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{
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return y + m_amplitude * pow( -1, (m_shift + x) / m_wavelength ) * (0.5 - (double)( (m_shift + x) % m_wavelength ) / m_wavelength );
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}
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private:
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int m_amplitude, m_wavelength, m_shift;
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};
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ChalkWaveFilter::ChalkWaveFilter(TQObject *parent, const char *name, const TQStringList &)
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: KParts::Plugin(parent, name)
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{
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setInstance(ChalkWaveFilterFactory::instance());
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if (parent->inherits("KisFilterRegistry")) {
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KisFilterRegistry * manager = dynamic_cast<KisFilterRegistry *>(parent);
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manager->add(new KisFilterWave());
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}
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}
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ChalkWaveFilter::~ChalkWaveFilter()
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{
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}
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KisFilterWave::KisFilterWave() : KisFilter(id(), "other", i18n("&Wave..."))
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{
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}
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KisFilterConfiguration* KisFilterWave::configuration(TQWidget* w)
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{
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KisWdgWave* wN = dynamic_cast<KisWdgWave*>(w);
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KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
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if(wN)
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{
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config->setProperty("horizontalwavelength", wN->widget()->intHWavelength->value() );
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config->setProperty("horizontalshift", wN->widget()->intHShift->value() );
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config->setProperty("horizontalamplitude", wN->widget()->intHAmplitude->value() );
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config->setProperty("horizontalshape", wN->widget()->cbHShape->currentItem() );
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config->setProperty("verticalwavelength", wN->widget()->intVWavelength->value() );
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config->setProperty("verticalshift", wN->widget()->intVShift->value() );
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config->setProperty("verticalamplitude", wN->widget()->intVAmplitude->value() );
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config->setProperty("verticalshape", wN->widget()->cbVShape->currentItem() );
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}
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return config;
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}
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KisFilterConfigWidget * KisFilterWave::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP /*dev*/)
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{
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return new KisWdgWave((KisFilter*)this, (TQWidget*)parent, i18n("Configuration of wave filter").ascii());
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}
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void KisFilterWave::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
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{
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Q_ASSERT(src != 0);
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Q_ASSERT(dst != 0);
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setProgressTotalSteps(rect.width() * rect.height());
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TQVariant value;
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int horizontalwavelength = (config && config->getProperty("horizontalwavelength", value)) ? value.toInt() : 50;
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int horizontalshift = (config && config->getProperty("horizontalshift", value)) ? value.toInt() : 50;
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int horizontalamplitude = (config && config->getProperty("horizontalamplitude", value)) ? value.toInt() : 4;
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int horizontalshape = (config && config->getProperty("horizontalshape", value)) ? value.toInt() : 0;
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int verticalwavelength = (config && config->getProperty("verticalwavelength", value)) ? value.toInt() : 50;
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int verticalshift = (config && config->getProperty("verticalshift", value)) ? value.toInt() : 50;
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int verticalamplitude = (config && config->getProperty("verticalamplitude", value)) ? value.toInt() : 4;
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int verticalshape = (config && config->getProperty("verticalshape", value)) ? value.toInt() : 0;
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KisRectIteratorPixel dstIt = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
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KisWaveCurve* verticalcurve;
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if(verticalshape == 1)
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verticalcurve = new KisTriangleWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
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else
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verticalcurve = new KisSinusoidalWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
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KisWaveCurve* horizontalcurve;
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if(horizontalshape == 1)
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horizontalcurve = new KisTriangleWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
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else
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horizontalcurve = new KisSinusoidalWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
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KisRandomSubAccessorPixel srcRSA = src->createRandomSubAccessor();
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while(!dstIt.isDone())
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{
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double xv = horizontalcurve->valueAt( dstIt.y(), dstIt.x() );
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double yv = verticalcurve->valueAt( dstIt.x(), dstIt.y() );
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srcRSA.moveTo( KisPoint( xv, yv ) );
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srcRSA.sampledOldRawData(dstIt.rawData());
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++dstIt;
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incProgress();
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}
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delete horizontalcurve;
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delete verticalcurve;
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setProgressDone(); // Must be called even if you don't really support progression
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}
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