1 files changed, 143 insertions, 0 deletions
diff --git a/chalk/plugins/filters/blur/kis_blur_filter.cpp b/chalk/plugins/filters/blur/kis_blur_filter.cpp
new file mode 100644
index 000000000..8d3604974
--- /dev/null
+++ b/chalk/plugins/filters/blur/kis_blur_filter.cpp
@@ -0,0 +1,143 @@
+/*
+ * This file is part of Chalk
+ *
+ * Copyright (c) 2006 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 "kis_blur_filter.h"
+
+#include <kcombobox.h>
+#include <knuminput.h>
+
+#include <kis_autobrush_resource.h>
+#include <kis_convolution_painter.h>
+#include <kis_iterators_pixel.h>
+#include <kis_progress_display_interface.h>
+#include <kis_progress_subject.h>
+
+
+#include "kis_wdg_blur.h"
+#include "wdgblur.h"
+
+KisKernelSP kernelFromTQImage(const TQImage& img)
+{
+    KisKernelSP k = new KisKernel;
+    k->width = img.width();
+    k->height = img.height();
+    k->offset = 0;
+    uint count = k->width * k->height;
+    k->data = new TQ_INT32[count];
+    TQ_INT32* itData = k->data;
+    TQ_UINT8* itImg = (TQ_UINT8*)img.bits();
+    k->factor = 0;
+    for(uint i = 0; i < count; ++i , ++itData, itImg+=4)
+    {
+        *itData = 255 - ( *itImg + *(itImg+1) + *(itImg+2) ) / 3;
+        k->factor += *itData;
+    }
+    return k;
+}
+
+KisBlurFilter::KisBlurFilter() : KisFilter(id(), "blur", i18n("&Blur..."))
+{
+}
+
+KisFilterConfigWidget * KisBlurFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP )
+{
+    return new KisWdgBlur(this, parent, "configuration of color to alpha");
+}
+
+KisFilterConfiguration* KisBlurFilter::configuration(TQWidget* w)
+{
+    KisWdgBlur * wCTA = dynamic_cast<KisWdgBlur*>(w);
+    if(!wCTA) return 0;
+    KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
+    if(wCTA)
+    {
+        config->setProperty("halfWidth", wCTA->widget()->intHalfWidth->value() );
+        config->setProperty("halfHeight", wCTA->widget()->intHalfWidth->value() );
+        config->setProperty("rotate", wCTA->widget()->intAngle->value() );
+        config->setProperty("strength", wCTA->widget()->intStrength->value() );
+        config->setProperty("shape", wCTA->widget()->cbShape->currentItem());
+    }
+    return config;
+}
+
+void KisBlurFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
+{
+    Q_ASSERT(src != 0);
+    Q_ASSERT(dst != 0);
+
+    setProgressTotalSteps(rect.width() * rect.height());
+
+    if(!config) config = new KisFilterConfiguration(id().id(), 1);
+
+    TQVariant value;
+    int shape = (config->getProperty("shape", value)) ? value.toInt() : 0;
+    uint halfWidth = (config->getProperty("halfWidth", value)) ? value.toUInt() : 5;
+    uint width = 2 * halfWidth + 1;
+    uint halfHeight = (config->getProperty("halfHeight", value)) ? value.toUInt() : 5;
+    uint height = 2 * halfHeight + 1;
+    int rotate = (config->getProperty("rotate", value)) ? value.toInt() : 0;
+    int strength = 100 - (config->getProperty("strength", value)) ? value.toUInt() : 0;
+
+    int hFade = (halfWidth * strength) / 100;
+    int vFade = (halfHeight * strength) / 100;
+
+    KisAutobrushShape* kas;
+    kdDebug() << width << " " << height << " " << hFade << " " << vFade << endl;
+    switch(shape)
+    {
+        case 1:
+            kas = new KisAutobrushRectShape(width, height , hFade, vFade);
+            break;
+        case 0:
+        default:
+            kas = new KisAutobrushCircleShape(width, height, hFade, vFade);
+            break;
+    }
+    TQImage mask;
+    kas->createBrush(&mask);
+
+    mask.convertDepth(1);
+
+    if( rotate != 0)
+    {
+        TQWMatrix m;
+        m.rotate( rotate );
+        mask = mask.xForm( m );
+        if( (mask.height() & 1) || mask.width() & 1)
+        {
+            mask.smoothScale( mask.width() + !(mask.width() & 1), mask.height() + !(mask.height() & 1) );
+        }
+    }
+
+    KisConvolutionPainter painter( dst );
+    if (m_progressDisplay)
+        m_progressDisplay->setSubject( &painter, true, true );
+
+    KisKernelSP kernel = kernelFromTQImage(mask); // TODO: for 1.6 reuse the chalk's core function for creating kernel : KisKernel::fromTQImage
+
+    painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT, KisChannelInfo::FLAG_COLOR_AND_ALPHA);
+
+    if (painter.cancelRequested()) {
+        cancel();
+    }
+
+    setProgressDone(); // Must be called even if you don't really support progression
+}
+