155 lines
3.0 KiB
C++
155 lines
3.0 KiB
C++
// Copyright (c) 2008 GeometryFactory Sarl (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/GraphicsView/include/CGAL/Qt/CircularArcGraphicsItem.h $
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// $Id: CircularArcGraphicsItem.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
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// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
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#ifndef CGAL_QT_CIRCULAR_ARC_GRAPHICS_ITEM_H
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#define CGAL_QT_CIRCULAR_ARC_GRAPHICS_ITEM_H
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#include <CGAL/license/GraphicsView.h>
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#include <CGAL/Bbox_2.h>
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#include <CGAL/Qt/PainterOstream.h>
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#include <CGAL/Qt/GraphicsItem.h>
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#include <CGAL/Qt/Converter.h>
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#include <QGraphicsScene>
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#include <QPainter>
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#include <QStyleOption>
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namespace CGAL {
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namespace Qt {
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template <typename CK>
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class CircularArcGraphicsItem : public GraphicsItem
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{
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typedef typename CK::Point_2 Point_2;
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typedef typename CK::Circle_2 Circle_2;
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typedef typename CK::Circular_arc_2 Circular_arc_2;
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public:
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CircularArcGraphicsItem();
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void modelChanged();
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public:
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QRectF boundingRect() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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const QPen& verticesPen() const
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{
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return this->vertices_pen;
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}
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const QPen& edgesPen() const
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{
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return edges_pen;
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}
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void setVerticesPen(const QPen& pen)
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{
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this->vertices_pen = pen;
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}
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void setEdgesPen(const QPen& pen)
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{
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edges_pen = pen;
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}
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void setArc(const Circular_arc_2& a);
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Circular_arc_2 arc() const
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{
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return arc_;
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}
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protected:
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void updateBoundingBox();
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QPainter* m_painter;
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PainterOstream<CK> painterostream;
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QRectF bounding_rect;
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QPen edges_pen;
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QPen vertices_pen;
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Circular_arc_2 arc_;
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};
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template <typename CK>
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void
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CircularArcGraphicsItem<CK>::setArc(const Circular_arc_2& a)
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{
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arc_ = a;
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updateBoundingBox();
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update();
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}
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template <typename CK>
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CircularArcGraphicsItem<CK>::CircularArcGraphicsItem()
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: painterostream(0)
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{
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this->hide();
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setZValue(3);
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}
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template <typename CK>
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QRectF
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CircularArcGraphicsItem<CK>::boundingRect() const
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{
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return bounding_rect;
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}
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template <typename CK>
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void
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CircularArcGraphicsItem<CK>::paint(QPainter *painter,
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const QStyleOptionGraphicsItem * /*option*/,
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QWidget * /*widget*/)
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{
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painter->setPen(this->edgesPen());
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painterostream = PainterOstream<CK>(painter);
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painterostream << arc_;
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}
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template <typename CK>
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void
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CircularArcGraphicsItem<CK>::updateBoundingBox()
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{
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Converter<CK> convert;
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prepareGeometryChange();
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//bounding_rect = convert(arc_.supporting_circle().bbox());
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bounding_rect = convert(arc_.bbox());
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}
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template <typename CK>
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void
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CircularArcGraphicsItem<CK>::modelChanged()
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{
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updateBoundingBox();
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update();
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}
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} // namespace Qt
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} // namespace CGAL
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#endif // CGAL_QT_CIRCULAR_ARC_GRAPHICS_ITEM_H
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