123 lines
2.6 KiB
C++
123 lines
2.6 KiB
C++
// Copyright (c) 2008 GeometryFactory Sarl (France).
|
|
// All rights reserved.
|
|
//
|
|
// This file is part of CGAL (www.cgal.org).
|
|
//
|
|
// $URL: https://github.com/CGAL/cgal/blob/v5.1/GraphicsView/include/CGAL/Qt/StreamLinesGraphicsItem.h $
|
|
// $Id: StreamLinesGraphicsItem.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_STREAM_LINES_GRAPHICS_ITEM_H
|
|
#define CGAL_QT_STREAM_LINES_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 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
|