87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
// Copyright (c) 2012 Tel-Aviv University (Israel).
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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/Arrangement_on_surface_2/include/CGAL/Qt/GraphicsViewPointInput.h $
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// $Id: GraphicsViewPointInput.h 254d60f 2019-10-19T15:23:19+02:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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#ifndef CGAL_QT_GRAPHICS_VIEW_POINT_INPUT_H
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#define CGAL_QT_GRAPHICS_VIEW_POINT_INPUT_H
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#include <CGAL/license/Arrangement_on_surface_2.h>
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#include <CGAL/Qt/GraphicsViewInput.h>
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#include <QEvent>
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#include <QGraphicsSceneMouseEvent>
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#include <iostream>
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namespace CGAL {
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namespace Qt {
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template < class K >
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class GraphicsViewPointInput: public GraphicsViewInput
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{
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public:
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typedef typename K::Point_2 Point;
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GraphicsViewPointInput( QObject* parent );
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protected:
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void mousePressEvent( QGraphicsSceneMouseEvent* event );
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void mouseReleaseEvent( QGraphicsSceneMouseEvent* event );
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bool eventFilter( QObject* obj, QEvent* event );
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Converter< K > convert;
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Point point;
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}; // class GraphicsViewPointInput
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template < class K >
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GraphicsViewPointInput< K >::
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GraphicsViewPointInput( QObject* parent ):
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GraphicsViewInput( parent )
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{
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}
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template < class K >
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void
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GraphicsViewPointInput< K >::
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mousePressEvent( QGraphicsSceneMouseEvent* event )
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{
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std::cout << event->pos( ).x( ) << std::endl;
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this->point = this->convert( event->scenePos( ) );
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}
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template < class K >
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void
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GraphicsViewPointInput< K >::
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mouseReleaseEvent( QGraphicsSceneMouseEvent* event )
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{
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emit generate( CGAL::make_object( this->point ) );
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}
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template < class K >
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bool
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GraphicsViewPointInput< K >::
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eventFilter( QObject* obj, QEvent* event )
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{
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if ( event->type( ) == QEvent::GraphicsSceneMousePress )
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{
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QGraphicsSceneMouseEvent* mouseEvent =
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static_cast< QGraphicsSceneMouseEvent* >( event );
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this->mousePressEvent( mouseEvent );
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}
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else if ( event->type( ) == QEvent::GraphicsSceneMouseRelease )
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{
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QGraphicsSceneMouseEvent* mouseEvent =
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static_cast< QGraphicsSceneMouseEvent* >( event );
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this->mouseReleaseEvent( mouseEvent );
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}
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return QObject::eventFilter( obj, event );
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}
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} // namespace Qt
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} // namespace CGAL
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#endif // CGAL_QT_GRAPHICS_VIEW_POINT_INPUT_H
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