dust3d/thirdparty/cgal/CGAL-5.1/include/CGAL/Qt/ApolloniusGraphGraphicsItem.h

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// Copyright (c) 2008 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/GraphicsView/include/CGAL/Qt/ApolloniusGraphGraphicsItem.h $
// $Id: ApolloniusGraphGraphicsItem.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
#ifndef CGAL_QT_APOLLONIUS_GRAPH_GRAPHICS_ITEM_H
#define CGAL_QT_APOLLONIUS_GRAPH_GRAPHICS_ITEM_H
#include <CGAL/license/GraphicsView.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 AG, typename K>
class ApolloniusGraphGraphicsItem : public GraphicsItem
{
public:
ApolloniusGraphGraphicsItem(AG* ag);
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QRectF
boundingRect() const;
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void
paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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void
modelChanged();
const QPen& edgesPen() const
{
return edges_pen;
}
void setEdgesPen(const QPen& pen)
{
edges_pen = pen;
}
const QPen& sitesPen() const
{
return sites_pen;
}
void setSitesPen(const QPen& pen)
{
sites_pen = pen;
}
private:
AG * ag;
QPen edges_pen, sites_pen;
};
template <typename AG, typename K>
ApolloniusGraphGraphicsItem<AG,K>::ApolloniusGraphGraphicsItem(AG * ag)
: ag(ag)
{
setZValue(3);
}
template <typename AG, typename K>
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QRectF
ApolloniusGraphGraphicsItem<AG,K>::boundingRect() const
{
QRectF rect = CGAL::Qt::viewportsBbox(scene());
return rect;
}
template <typename AG, typename K>
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void
ApolloniusGraphGraphicsItem<AG,K>::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * /*w*/)
{
painter->setPen(this->sitesPen());
QRectF rect = option->exposedRect;
PainterOstream<K> pos(painter, rect);
for(typename AG::Sites_iterator it = ag->sites_begin();
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it != ag->sites_end(); it++ ) {
pos << typename K::Circle_2(it->point(), square( it->weight()));
}
painter->setPen(this->edgesPen());
ag->draw_dual(pos);
}
template <typename AG, typename K>
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void
ApolloniusGraphGraphicsItem<AG,K>::modelChanged()
{
update();
}
} // namespace Qt
} // namespace CGAL
#endif // CGAL_QT_APOLLONIUS_GRAPH_GRAPHICS_ITEM_H