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+/* This file is part of the KDE project
+ * Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>, the original iteratorpixel
+ * Copyright (c) 2005 Casper Boemann <cbr@boemann.dk>, made it into a trait
+ *
+ * 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.
+*/
+
+#ifndef KIS_ITERATORPIXELTRAIT_H_
+#define KIS_ITERATORPIXELTRAIT_H_
+
+#include "kis_iterator.h"
+#include <kis_paint_device.h>
+
+template< typename _iTp>
+class KisIteratorPixelTrait
+{
+public:
+ KisIteratorPixelTrait(KisPaintDevice * ndevice, _iTp *underlyingIterator)
+ : m_device(ndevice),
+ m_underlyingIterator(underlyingIterator)
+ {
+ m_selectionIterator = NULL;
+ };
+
+ ~KisIteratorPixelTrait()
+ {
+ delete m_selectionIterator;
+ };
+
+ KisIteratorPixelTrait(const KisIteratorPixelTrait& rhs)
+ {
+ if (this == &rhs)
+ return;
+ m_device = rhs.m_device;
+ m_underlyingIterator = rhs.m_underlyingIterator;
+
+ if (rhs.m_selectionIterator) {
+ m_selectionIterator = new _iTp(*rhs.m_selectionIterator);
+ } else {
+ m_selectionIterator = 0;
+ }
+ }
+
+ KisIteratorPixelTrait& operator=(const KisIteratorPixelTrait& rhs)
+ {
+ if (this == &rhs)
+ return *this;
+ m_device = rhs.m_device;
+ m_underlyingIterator = rhs.m_underlyingIterator;
+
+ delete m_selectionIterator;
+ if (rhs.m_selectionIterator) {
+ m_selectionIterator = new _iTp(*rhs.m_selectionIterator);
+ } else {
+ m_selectionIterator = 0;
+ }
+
+ return *this;
+ }
+
+
+public:
+ /**
+ * Return one channel from the current kispixel. Does not check whether
+ * channel index actually exists in this colorspace.
+ */
+ inline Q_UINT8 operator[](int index) const
+ { return m_underlyingIterator->rawData()[index]; };
+
+ /**
+ * Returns if the pixel is selected or not. This is much faster than first building a KisPixel
+ */
+ inline bool isSelected() const
+ {
+ if (m_selectionIterator)
+ return *(m_selectionIterator->rawData()) > SELECTION_THRESHOLD;
+ else
+ return true;
+ };
+
+ /**
+ * Returns the degree of selectedness of the pixel.
+ */
+ inline Q_UINT8 selectedness() const
+ {
+ if (m_selectionIterator)
+ return *(m_selectionIterator->rawData());
+ else {
+ return MAX_SELECTED;
+ }
+ };
+
+ /**
+ * Returns the selectionmask from the current point; this is guaranteed
+ * to have the same number of consecutive pixels that the iterator has
+ * at a given point. It return a 0 if there is no selection.
+ */
+ inline Q_UINT8 * selectionMask() const
+ {
+ if ( m_selectionIterator )
+ return m_selectionIterator->rawData();
+ else
+ return 0;
+ }
+
+
+protected:
+ KisPaintDevice *m_device;
+
+ inline void advance(int n){if (m_selectionIterator) for(int i=0; i< n; i++) ++(*m_selectionIterator);};
+ inline void retreat(){if (m_selectionIterator) --(*m_selectionIterator);};
+
+ void setSelectionIterator(_iTp *si){m_selectionIterator = si;};
+
+ _iTp *m_underlyingIterator;
+ _iTp *m_selectionIterator;
+};
+
+#endif