/usr/include/CGAL/Qt/StreamLinesGraphicsItem.h is in libcgal-qt5-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
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// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// 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 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
#ifndef CGAL_QT_STREAM_LINES_GRAPHICS_ITEM_H
#define CGAL_QT_STREAM_LINES_GRAPHICS_ITEM_H
#include <CGAL/Qt/GraphicsItem.h>
#include <CGAL/Qt/PainterOstream.h>
#include <CGAL/Qt/utility.h>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QPainter>
#include <QStyleOption>
class QGraphicsSceneMouseEvent;
namespace CGAL {
namespace Qt {
template <typename SL, typename K>
class StreamLinesGraphicsItem : public GraphicsItem
{
typedef typename SL::Stream_line_iterator_2 Stream_line_iterator;
typedef typename SL::Point_iterator_2 Point_iterator;
typedef typename K::Point_2 Point_2;
typedef typename K::Segment_2 Segment_2;
public:
StreamLinesGraphicsItem(SL* sl);
QRectF
boundingRect() const;
void
paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
void
modelChanged();
const QPen& edgesPen() const
{
return edges_pen;
}
void setEdgesPen(const QPen& pen)
{
edges_pen = pen;
}
private:
SL * sl;
QPen edges_pen;
};
template <typename SL, typename K>
StreamLinesGraphicsItem<SL,K>::StreamLinesGraphicsItem(SL * sl)
: sl(sl)
{
setZValue(3);
}
template <typename SL, typename K>
QRectF
StreamLinesGraphicsItem<SL,K>::boundingRect() const
{
QRectF rect = CGAL::Qt::viewportsBbox(scene());
return rect;
}
template <typename SL, typename K>
void
StreamLinesGraphicsItem<SL,K>::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * /*w*/)
{
painter->setPen(this->edgesPen());
QRectF rect = option->exposedRect;
PainterOstream<K> pos(painter, rect);
for (Stream_line_iterator sit = sl->begin(); sit != sl->end(); sit++){
Point_iterator pit = sit->first;
Point_2 p = *pit;
++pit;
for (; pit != (*sit).second; pit++){
Point_2 q = *pit;
pos << Segment_2(p,q);
p = q;
}
}
}
template <typename SL, typename K>
void
StreamLinesGraphicsItem<SL,K>::modelChanged()
{
update();
}
} // namespace Qt
} // namespace CGAL
#endif // CGAL_QT_STREAM_LINES_GRAPHICS_ITEM_H
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