1 files changed, 138 insertions, 0 deletions
diff --git a/chalk/plugins/filters/convolutionfilters/kis_convolution_filter.cpp b/chalk/plugins/filters/convolutionfilters/kis_convolution_filter.cpp
new file mode 100644
index 000000000..08601d600
--- /dev/null
+++ b/chalk/plugins/filters/convolutionfilters/kis_convolution_filter.cpp
@@ -0,0 +1,138 @@
+/*
+ * This file is part of the KDE project
+ *
+ * Copyright (c) 2004 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 "tqdom.h"
+#include "tdelocale.h"
+#include "kdebug.h"
+
+#include "kis_painter.h"
+#include "kis_convolution_filter.h"
+#include "kis_convolution_painter.h"
+#include "kis_progress_display_interface.h"
+#include "kis_progress_subject.h"
+
+void KisConvolutionConfiguration::fromXML(const TQString & s)
+{
+    m_matrix = new KisKernel();
+
+    TQDomDocument doc;
+    doc.setContent( s );
+    TQDomElement e = doc.documentElement();
+    TQDomNode n = e.firstChild();
+
+    m_name = e.attribute("name");
+    m_version = e.attribute("version").toInt();
+
+    TQDomElement matrix = n.toElement();
+    m_matrix->width = TQString( matrix.attribute( "width" ) ).toInt();
+    m_matrix->height = TQString( matrix.attribute( "height" ) ).toInt();
+    m_matrix->offset = TQString( matrix.attribute( "offset" ) ).toInt();
+    m_matrix->factor = TQString( matrix.attribute( "factor" ) ).toInt();
+
+    m_matrix->data = new TQ_INT32[m_matrix->width * m_matrix->height];
+
+    TQStringList data = TQStringList::split( ",", e.text() );
+    TQStringList::Iterator start = data.begin();
+    TQStringList::Iterator end = data.end();
+    int i = 0;
+    for ( TQStringList::Iterator it = start; it != end; ++it ) {
+        TQString s = *it;
+        m_matrix->data[i] = s.toInt();
+        i++;
+    }
+}
+
+TQString KisConvolutionConfiguration::toString()
+{
+    TQDomDocument doc = TQDomDocument("filterconfig");
+    TQDomElement root = doc.createElement( "filterconfig" );
+    root.setAttribute( "name", name() );
+    root.setAttribute( "version", version() );
+
+    doc.appendChild( root );
+
+    TQDomElement e = doc.createElement( "kernel" );
+    e.setAttribute( "width", m_matrix->width );
+    e.setAttribute( "height", m_matrix->height );
+    e.setAttribute( "offset", m_matrix->offset );
+    e.setAttribute( "factor", m_matrix->factor );
+
+    TQString data;
+
+    for ( uint i = 0; i < m_matrix->width * m_matrix->height; ++i ) {
+        data += TQString::number( m_matrix->data[i] );
+        data += ",";
+    }
+
+    TQDomText text = doc.createCDATASection(data);
+    e.appendChild(text);
+    root.appendChild(e);
+
+    return doc.toString();
+
+}
+
+void KisConvolutionFilter::process(KisPaintDeviceSP src,
+                                   KisPaintDeviceSP dst,
+                                   KisFilterConfiguration* configuration,
+                                   const TQRect& rect)
+{
+    if (!configuration) {
+        setProgressDone();
+        return;
+    }
+
+    if (dst != src) {
+        kdDebug() << "src != dst\n";
+        KisPainter gc(dst);
+        gc.bitBlt(rect.x(), rect.y(), COMPOSITE_COPY, src, rect.x(), rect.y(), rect.width(), rect.height());
+        gc.end();
+    }
+
+
+    KisConvolutionPainter painter( dst );
+    if (m_progressDisplay)
+        m_progressDisplay->setSubject( &painter, true, true );
+
+    KisKernelSP kernel = ((KisConvolutionConfiguration*)configuration)->matrix();
+    KisChannelInfo::enumChannelFlags channels = ((KisConvolutionConfiguration*)configuration)->channels();
+
+    painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT, channels );
+
+    if (painter.cancelRequested()) {
+        cancel();
+    }
+
+    setProgressDone();
+}
+
+int KisConvolutionFilter::overlapMarginNeeded(KisFilterConfiguration* c) const {
+    KisConvolutionConfiguration* config = dynamic_cast<KisConvolutionConfiguration*>(c);
+    if (!config)
+        return 0;
+    KisKernelSP kernel = config->matrix();
+    return TQMAX(kernel->width / 2, kernel->height / 2);
+}
+
+KisFilterConfiguration* KisConvolutionConstFilter::configuration(TQWidget*)
+{
+    return new KisConvolutionConfiguration( id().id(), m_matrix, m_channelFlags);
+}
+
+#include "kis_convolution_filter.moc"