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/*
* This file is part of the KDE project
*
* Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "wavefilter.h"
#include <stdlib.h>
#include <vector>
#include <tqpoint.h>
#include <kcombobox.h>
#include <kdebug.h>
#include <kgenericfactory.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <knuminput.h>
#include <kstandarddirs.h>
#include <tdetempfile.h>
#include <kis_image.h>
#include <kis_iterators_pixel.h>
#include <kis_filter_registry.h>
#include <kis_global.h>
#include <kis_layer.h>
#include <kis_random_sub_accessor.h>
#include <kis_types.h>
#include "kis_wdg_wave.h"
#include "wdgwaveoptions.h"
typedef KGenericFactory<ChalkWaveFilter> ChalkWaveFilterFactory;
K_EXPORT_COMPONENT_FACTORY( chalkwavefilter, ChalkWaveFilterFactory( "chalk" ) )
class KisWaveCurve {
public:
virtual double valueAt(int x, int y) =0;
};
class KisSinusoidalWaveCurve : public KisWaveCurve {
public:
KisSinusoidalWaveCurve(int amplitude, int wavelength, int shift) : m_amplitude(amplitude), m_wavelength(wavelength), m_shift(shift)
{
}
virtual double valueAt(int x, int y)
{
return y + m_amplitude * cos( (double) ( m_shift + x) / m_wavelength );
}
private:
int m_amplitude, m_wavelength, m_shift;
};
class KisTriangleWaveCurve : public KisWaveCurve {
public:
KisTriangleWaveCurve(int amplitude, int wavelength, int shift) : m_amplitude(amplitude), m_wavelength(wavelength), m_shift(shift)
{
}
virtual double valueAt(int x, int y)
{
return y + m_amplitude * pow( -1, (m_shift + x) / m_wavelength ) * (0.5 - (double)( (m_shift + x) % m_wavelength ) / m_wavelength );
}
private:
int m_amplitude, m_wavelength, m_shift;
};
ChalkWaveFilter::ChalkWaveFilter(TQObject *parent, const char *name, const TQStringList &)
: KParts::Plugin(parent, name)
{
setInstance(ChalkWaveFilterFactory::instance());
if (parent->inherits("KisFilterRegistry")) {
KisFilterRegistry * manager = dynamic_cast<KisFilterRegistry *>(parent);
manager->add(new KisFilterWave());
}
}
ChalkWaveFilter::~ChalkWaveFilter()
{
}
KisFilterWave::KisFilterWave() : KisFilter(id(), "other", i18n("&Wave..."))
{
}
KisFilterConfiguration* KisFilterWave::configuration(TQWidget* w)
{
KisWdgWave* wN = dynamic_cast<KisWdgWave*>(w);
KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
if(wN)
{
config->setProperty("horizontalwavelength", wN->widget()->intHWavelength->value() );
config->setProperty("horizontalshift", wN->widget()->intHShift->value() );
config->setProperty("horizontalamplitude", wN->widget()->intHAmplitude->value() );
config->setProperty("horizontalshape", wN->widget()->cbHShape->currentItem() );
config->setProperty("verticalwavelength", wN->widget()->intVWavelength->value() );
config->setProperty("verticalshift", wN->widget()->intVShift->value() );
config->setProperty("verticalamplitude", wN->widget()->intVAmplitude->value() );
config->setProperty("verticalshape", wN->widget()->cbVShape->currentItem() );
}
return config;
}
KisFilterConfigWidget * KisFilterWave::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP /*dev*/)
{
return new KisWdgWave((KisFilter*)this, (TQWidget*)parent, i18n("Configuration of wave filter").ascii());
}
void KisFilterWave::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
{
Q_ASSERT(src != 0);
Q_ASSERT(dst != 0);
setProgressTotalSteps(rect.width() * rect.height());
TQVariant value;
int horizontalwavelength = (config && config->getProperty("horizontalwavelength", value)) ? value.toInt() : 50;
int horizontalshift = (config && config->getProperty("horizontalshift", value)) ? value.toInt() : 50;
int horizontalamplitude = (config && config->getProperty("horizontalamplitude", value)) ? value.toInt() : 4;
int horizontalshape = (config && config->getProperty("horizontalshape", value)) ? value.toInt() : 0;
int verticalwavelength = (config && config->getProperty("verticalwavelength", value)) ? value.toInt() : 50;
int verticalshift = (config && config->getProperty("verticalshift", value)) ? value.toInt() : 50;
int verticalamplitude = (config && config->getProperty("verticalamplitude", value)) ? value.toInt() : 4;
int verticalshape = (config && config->getProperty("verticalshape", value)) ? value.toInt() : 0;
KisRectIteratorPixel dstIt = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
KisWaveCurve* verticalcurve;
if(verticalshape == 1)
verticalcurve = new KisTriangleWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
else
verticalcurve = new KisSinusoidalWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
KisWaveCurve* horizontalcurve;
if(horizontalshape == 1)
horizontalcurve = new KisTriangleWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
else
horizontalcurve = new KisSinusoidalWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
KisRandomSubAccessorPixel srcRSA = src->createRandomSubAccessor();
while(!dstIt.isDone())
{
double xv = horizontalcurve->valueAt( dstIt.y(), dstIt.x() );
double yv = verticalcurve->valueAt( dstIt.x(), dstIt.y() );
srcRSA.moveTo( KisPoint( xv, yv ) );
srcRSA.sampledOldRawData(dstIt.rawData());
++dstIt;
incProgress();
}
delete horizontalcurve;
delete verticalcurve;
setProgressDone(); // Must be called even if you don't really support progression
}
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