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// 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/v6.1.1/GraphicsView/include/CGAL/Qt/GraphicsViewNavigation.h $
// $Id: include/CGAL/Qt/GraphicsViewNavigation.h 08b27d3db14 $
// 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_GRAPHICS_VIEW_NAVIGATION_H
#define CGAL_QT_GRAPHICS_VIEW_NAVIGATION_H
#include <CGAL/license/GraphicsView.h>
#include <CGAL/auto_link/Qt.h>
#include <CGAL/export/Qt.h>
#include <QObject>
#include <QPointF>
#include <QString>
#include <QCursor>
#include <QRect>
#include <QRectF>
class QGraphicsView;
class QGraphicsScene;
class QEvent;
class QGraphicsRectItem;
namespace CGAL {
namespace Qt {
class CGAL_QT_EXPORT GraphicsViewNavigation: public QObject {
Q_OBJECT
Q_SIGNALS:
void mouseCoordinates(QString);
public:
GraphicsViewNavigation();
~GraphicsViewNavigation();
bool eventFilter(QObject *obj, QEvent *event);
private:
void scaleView(QGraphicsView*, qreal scaleFactor);
void translateView(QGraphicsView*, int dx, int dy);
void drag_to(QGraphicsView*, QPoint new_pos);
void display_parameters(QGraphicsView*);
QGraphicsRectItem* rectItem;
QPointF rect_first_point;
bool dragging;
QPointF dragging_start;
QCursor cursor_backup;
};
} // namespace Qt
} // namespace CGAL
#ifdef CGAL_HEADER_ONLY
#include <CGAL/Qt/GraphicsViewNavigation_impl.h>
#endif // CGAL_HEADER_ONLY
#endif // CGAL_QT_GRAPHICS_VIEW_NAVIGATION_H
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