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// Copyright (c) 2008 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// 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: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/next/GraphicsView/include/CGAL/Qt/GraphicsViewPolylineInput.h $
// $Id: GraphicsViewPolylineInput.h 67117 2012-01-13 18:14:48Z lrineau $
//
//
// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
#ifndef CGAL_QT_GRAPHICS_VIEW_POLYLINE_INPUT_H
#define CGAL_QT_GRAPHICS_VIEW_POLYLINE_INPUT_H
#include <CGAL/auto_link/Qt4.h>
#include <CGAL/export/Qt4.h>
#include <QPolygonF>
#include <QPointF>
#include <CGAL/Qt/GraphicsViewInput.h>
#include <CGAL/Qt/Converter.h>
class QGraphicsScene;
class QGraphicsSceneMouseEvent;
class QGraphicsItem;
class QGraphicsPathItem;
class QKeyEvent;
class QEvent;
class QObject;
namespace CGAL {
namespace Qt {
class CGAL_QT4_EXPORT GraphicsViewPolylineInput_non_templated_base : public GraphicsViewInput
{
public:
void setNumberOfVertices(int n)
{
n_ = n;
}
bool eventFilter(QObject *obj, QEvent *event);
protected:
// protected constructor
GraphicsViewPolylineInput_non_templated_base(QObject* parent,
QGraphicsScene* s,
int n = 0,
bool closed = true);
// mousePressEvent returns true iff the event is consummed
bool mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
// keyPressEvent returns true iff the event is consummed
bool keyPressEvent(QKeyEvent *event);
void rubberbands(const QPointF& p);
virtual void generate_polygon() = 0;
protected:
QPolygonF polygon;
bool closed_;
private:
QGraphicsPathItem *path_item;
QGraphicsLineItem *b, *e;
int n_;
QPointF sp;
QGraphicsScene *scene_;
}; // end class GraphicsViewPolylineInput_non_templated_base
template <typename K>
class GraphicsViewPolylineInput : public GraphicsViewPolylineInput_non_templated_base
{
public:
GraphicsViewPolylineInput(QObject* parent, QGraphicsScene* s, int n = 0, bool closed = true)
: GraphicsViewPolylineInput_non_templated_base(parent, s, n, closed)
{
}
protected:
void generate_polygon() {
std::list<typename K::Point_2> points;
Converter<K> convert;
convert(points, this->polygon);
if(closed_ && points.size()>2){
points.push_back(points.front());
}
emit(generate(CGAL::make_object(points)));
}
}; // end class GraphicsViewPolylineInput
} // namespace Qt
} // namespace CGAL
#endif // CGAL_QT_GRAPHICS_VIEW_POLYLINE_INPUT_H
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