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/*
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* 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_BOUNDARY_H_
#define _KIS_BOUNDARY_H_
#include <qvaluelist.h>
#include <qpair.h>
#include <koffice_export.h>
#include "kis_point.h"
class KisPaintDevice;
/**
* Generates an 'outline' for a paint device. It should look a bit like the outline of a
* marching ants selection. You can use it to paint the outline of a KisBrush while painting.
* It's not really optimized, so it's not recommended to do big things with it and expect
* it to be fast.
* Usage: construct a KisBoundary, and then run a generateBoundary(w, h) on it. After that,
* you can use the KisBoundaryPainter::paint method to let it paint the outline, or get a pixmap.
**/
class KRITACORE_EXPORT KisBoundary {
public:
KisBoundary(KisPaintDevice* dev);
void generateBoundary(int w, int h);
private:
typedef QPair<KisPoint, int> PointPair; // int->length
bool isDark(Q_UINT8 val);
KisPaintDevice* m_device;
int m_fuzzyness;
typedef QValueList<PointPair> PointPairList;
typedef QValueList< PointPairList > PointPairListList;
PointPairListList m_horSegments;
PointPairListList m_vertSegments;
friend class KisBoundaryPainter;
};
#endif // _KIS_BOUNDARY_H_
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