123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
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// 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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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0+
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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_GRAPHICS_VIEW_POLYLINE_INPUT_H
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#define CGAL_QT_GRAPHICS_VIEW_POLYLINE_INPUT_H
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#include <CGAL/license/GraphicsView.h>
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#include <CGAL/auto_link/Qt.h>
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#include <CGAL/export/Qt.h>
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#include <QPolygonF>
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#include <QPointF>
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#include <QKeyEvent>
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#include <CGAL/Qt/GraphicsViewInput.h>
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#include <CGAL/Qt/Converter.h>
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#include <QGraphicsLineItem>
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class QGraphicsScene;
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class QGraphicsSceneMouseEvent;
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class QGraphicsItem;
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class QGraphicsPathItem;
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class QGraphicsLineItem;
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class QKeyEvent;
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class QEvent;
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class QObject;
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namespace CGAL {
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namespace Qt {
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class CGAL_QT_EXPORT GraphicsViewPolylineInput_non_templated_base : public GraphicsViewInput
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{
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public:
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void setNumberOfVertices(int n)
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{
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n_ = n;
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}
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bool eventFilter(QObject *obj, QEvent *event);
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protected:
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// protected constructor
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GraphicsViewPolylineInput_non_templated_base(QObject* parent,
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QGraphicsScene* s,
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int n = 0,
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bool closed = true);
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// mousePressEvent returns true iff the event is consummed
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bool mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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// keyPressEvent returns true iff the event is consummed
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bool keyPressEvent(QKeyEvent *event);
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void rubberbands(const QPointF& p);
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virtual void generate_polygon() = 0;
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protected:
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QPolygonF polygon;
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bool closed_;
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private:
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QGraphicsPathItem *path_item;
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QGraphicsLineItem *b, *e;
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int n_;
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QPointF sp;
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QGraphicsScene *scene_;
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}; // end class GraphicsViewPolylineInput_non_templated_base
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template <typename K>
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class GraphicsViewPolylineInput : public GraphicsViewPolylineInput_non_templated_base
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{
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public:
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GraphicsViewPolylineInput(QObject* parent, QGraphicsScene* s, int n = 0, bool closed = true)
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: GraphicsViewPolylineInput_non_templated_base(parent, s, n, closed)
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{
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}
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protected:
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void generate_polygon() {
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std::list<typename K::Point_2> points;
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Converter<K> convert;
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convert(points, this->polygon);
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if(closed_ && points.size()>2){
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points.push_back(points.front());
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}
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Q_EMIT( generate(CGAL::make_object(points)));
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}
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}; // end class GraphicsViewPolylineInput
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} // namespace Qt
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} // namespace CGAL
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#ifdef CGAL_HEADER_ONLY
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#include <CGAL/Qt/GraphicsViewPolylineInput_impl.h>
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#endif // CGAL_HEADER_ONLY
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#endif // CGAL_QT_GRAPHICS_VIEW_POLYLINE_INPUT_H
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