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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 <math.h>
#include <QPoint>
#include <kis_debug.h>
#include <kpluginfactory.h>
#include <klocalizedstring.h>
#include <KoUpdater.h>
#include <kis_image.h>
#include <filter/kis_filter_registry.h>
#include <kis_global.h>
#include <kis_layer.h>
#include <kis_random_sub_accessor.h>
#include <kis_selection.h>
#include <kis_types.h>
#include <kis_paint_device.h>
#include <filter/kis_filter_configuration.h>
#include <kis_processing_information.h>
#include "kis_wdg_wave.h"
#include "ui_wdgwaveoptions.h"
#include <kis_iterator_ng.h>
K_PLUGIN_FACTORY_WITH_JSON(KritaWaveFilterFactory, "kritawavefilter.json", registerPlugin<KritaWaveFilter>();)
class KisWaveCurve
{
public:
virtual ~KisWaveCurve() {}
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) {
}
~KisSinusoidalWaveCurve() override {}
double valueAt(int x, int y) override {
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) {
}
~KisTriangleWaveCurve() override {}
double valueAt(int x, int y) override {
return y + m_amplitude * pow(-1.0, (m_shift + x) / m_wavelength) *(0.5 - (double)((m_shift + x) % m_wavelength) / m_wavelength);
}
private:
int m_amplitude, m_wavelength, m_shift;
}; KritaWaveFilter::KritaWaveFilter(QObject *parent, const QVariantList &)
: QObject(parent)
{
KisFilterRegistry::instance()->add(new KisFilterWave());
}
KritaWaveFilter::~KritaWaveFilter()
{
}
KisFilterWave::KisFilterWave() : KisFilter(id(), categoryOther(), i18n("&Wave..."))
{
setColorSpaceIndependence(FULLY_INDEPENDENT);
setSupportsPainting(false);
setSupportsAdjustmentLayers(false);
}
KisFilterConfigurationSP KisFilterWave::factoryConfiguration(const KisPaintDeviceSP) const
{
KisFilterConfigurationSP config = new KisFilterConfiguration("wave", 1);
config->setProperty("horizontalwavelength", 50);
config->setProperty("horizontalshift", 50);
config->setProperty("horizontalamplitude", 4);
config->setProperty("horizontalshape", 0);
config->setProperty("verticalwavelength", 50);
config->setProperty("verticalshift", 50);
config->setProperty("verticalamplitude", 4);
config->setProperty("verticalshape", 0);
return config;
}
KisConfigWidget * KisFilterWave::createConfigurationWidget(QWidget* parent, const KisPaintDeviceSP) const
{
return new KisWdgWave((KisFilter*)this, (QWidget*)parent);
}
void KisFilterWave::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfigurationSP config,
KoUpdater* progressUpdater
) const
{
Q_ASSERT(device.data() != 0);
int cost = (applyRect.width() * applyRect.height()) / 100;
if (cost == 0) cost = 1;
int count = 0;
QVariant 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;
KisSequentialIterator dstIt(device, applyRect);
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);
KisRandomSubAccessorSP srcRSA = device->createRandomSubAccessor();
do {
double xv = horizontalcurve->valueAt(dstIt.y(), dstIt.x());
double yv = verticalcurve->valueAt(dstIt.x(), dstIt.y());
srcRSA->moveTo(QPointF(xv, yv));
srcRSA->sampledOldRawData(dstIt.rawData());
if (progressUpdater) progressUpdater->setProgress((++count) / cost);
} while (dstIt.nextPixel());
delete horizontalcurve;
delete verticalcurve;
}
QRect KisFilterWave::neededRect(const QRect& rect, const KisFilterConfigurationSP config, int lod) const
{
Q_UNUSED(lod);
QVariant value;
int horizontalamplitude = (config && config->getProperty("horizontalamplitude", value)) ? value.toInt() : 4;
int verticalamplitude = (config && config->getProperty("verticalamplitude", value)) ? value.toInt() : 4;
return rect.adjusted(-horizontalamplitude, -verticalamplitude, horizontalamplitude, verticalamplitude);
}
#include "wavefilter.moc"
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