1 files changed, 128 insertions, 0 deletions
diff --git a/chalk/plugins/filters/noisefilter/noisefilter.cpp b/chalk/plugins/filters/noisefilter/noisefilter.cpp
new file mode 100644
index 000000000..d8609ba2b
--- /dev/null
+++ b/chalk/plugins/filters/noisefilter/noisefilter.cpp
@@ -0,0 +1,128 @@
+/*
+ * 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
+}