1 files changed, 169 insertions, 0 deletions
diff --git a/chalk/plugins/filters/wavefilter/wavefilter.cpp b/chalk/plugins/filters/wavefilter/wavefilter.cpp
new file mode 100644
index 000000000..9f9777bf6
--- /dev/null
+++ b/chalk/plugins/filters/wavefilter/wavefilter.cpp
@@ -0,0 +1,169 @@
+/*
+ * 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
+}