cgal/GraphicsView/include/CGAL/Qt/LineGraphicsItem.h

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// Copyright (c) 2008 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you may redistribute it under
// the terms of the Q Public License version 1.0.
// See the file LICENSE.QPL distributed with CGAL.
//
// 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_LINE_GRAPHICS_ITEM_H
#define CGAL_QT_LINE_GRAPHICS_ITEM_H
#include <CGAL/Bbox_2.h>
#include <CGAL/Qt/PainterOstream.h>
#include <CGAL/Qt/GraphicsItem.h>
#include <CGAL/Qt/utility.h>
#include <QGraphicsScene>
#include <QPainter>
#include <QStyleOption>
namespace CGAL {
namespace Qt {
template <typename CK>
class LineGraphicsItem : public GraphicsItem
{
typedef typename CK::Line_2 Line_2;
public:
LineGraphicsItem();
void modelChanged();
public:
QRectF boundingRect() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
const QPen& verticesPen() const
{
return this->vertices_pen;
}
const QPen& edgesPen() const
{
return edges_pen;
}
void setVerticesPen(const QPen& pen)
{
this->vertices_pen = pen;
}
void setEdgesPen(const QPen& pen)
{
edges_pen = pen;
}
void setLine(const Line_2& a);
Line_2 line() const
{
return line_;
}
protected:
QPainter* m_painter;
PainterOstream<CK> painterostream;
QPen edges_pen;
Line_2 line_;
};
template <typename CK>
void
LineGraphicsItem<CK>::setLine(const Line_2& a)
{
line_ = a;
update();
}
template <typename CK>
LineGraphicsItem<CK>::LineGraphicsItem()
: painterostream(0)
{
this->hide();
setZValue(13);
}
template <typename CK>
QRectF
LineGraphicsItem<CK>::boundingRect() const
{
std::cerr << "Enter boundingRect" << std::endl;
if(isVisible()){
std::cerr << "visible" << std::endl;
QRectF rect = CGAL::Qt::viewportsBbox(scene());
assert(rect.isValid());
return rect;
} else {
std::cerr << "not visible" << std::endl;
return QRectF();
}
}
template <typename CK>
void
LineGraphicsItem<CK>::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget * widget)
{
painter->setPen(this->edgesPen());
std::cerr << "in paint" << std::endl;
painterostream = PainterOstream<CK>(painter, boundingRect());
painterostream << line_;
}
template <typename CK>
void
LineGraphicsItem<CK>::modelChanged()
{
update();
}
} // namespace Qt
} // namespace CGAL
#endif // CGAL_QT_LINE_GRAPHICS_ITEM_H