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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 "noisefilter.h"
#include <stdlib.h>
#include <vector>
#include <tqpoint.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <kgenericfactory.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_layer.h>
#include <kis_filter_registry.h>
#include <kis_global.h>
#include <kis_types.h>
#include "kis_wdg_noise.h"
#include "wdgnoiseoptions.h"
typedef KGenericFactory<ChalkNoiseFilter> ChalkNoiseFilterFactory;
K_EXPORT_COMPONENT_FACTORY( chalknoisefilter, ChalkNoiseFilterFactory( "chalk" ) )
ChalkNoiseFilter::ChalkNoiseFilter(TQObject *parent, const char *name, const TQStringList &)
: KParts::Plugin(parent, name)
{
setInstance(ChalkNoiseFilterFactory::instance());
if (parent->inherits("KisFilterRegistry")) {
KisFilterRegistry * manager = dynamic_cast<KisFilterRegistry *>(parent);
manager->add(new KisFilterNoise());
}
}
ChalkNoiseFilter::~ChalkNoiseFilter()
{
}
KisFilterNoise::KisFilterNoise() : KisFilter(id(), "other", i18n("&Random Noise..."))
{
}
KisFilterConfiguration* KisFilterNoise::configuration(TQWidget* w)
{
KisWdgNoise* wN = dynamic_cast<KisWdgNoise*>(w);
KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
if(wN)
{
config->setProperty("level", wN->widget()->intLevel->value() );
config->setProperty("opacity", wN->widget()->intOpacity->value() );
}
return config;
}
KisFilterConfigWidget * KisFilterNoise::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP dev)
{
return new KisWdgNoise((KisFilter*)this, (TQWidget*)parent, i18n("Configuration of noise filter").ascii());
}
void KisFilterNoise::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
{
Q_ASSERT(src != 0);
Q_ASSERT(dst != 0);
setProgressTotalSteps(rect.width() * rect.height());
KisColorSpace * cs = src->colorSpace();
TQ_INT32 psize = cs->pixelSize();
TQVariant value;
int level = (config && config->getProperty("level", value)) ? value.toInt() : 50;
int opacity = (config && config->getProperty("opacity", value)) ? value.toInt() : 100;
KisRectIteratorPixel dstIt = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
KisRectIteratorPixel srcIt = src->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), false);
TQ_UINT8* interm = new TQ_UINT8[ cs->pixelSize() ];
TQ_UINT32 threshold = (RAND_MAX / 100) * (100 - level);
TQ_UINT8 weights[2];
weights[0] = (255 * opacity) / 100; weights[1] = 255 - weights[0];
const TQ_UINT8* pixels[2];
pixels[0] = interm;
while(!srcIt.isDone())
{
if(rand() > threshold)
{
TQColor c = tqRgb((double)rand()/RAND_MAX * 255,(double)rand()/RAND_MAX * 255,(double)rand()/RAND_MAX * 255);
cs->fromTQColor( c, interm, 0 );
pixels[1] = srcIt.oldRawData();
cs->mixColors( pixels, weights, 2, dstIt.rawData() );
}
++srcIt;
++dstIt;
incProgress();
}
delete interm;
setProgressDone(); // Must be called even if you don't really support progression
}
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