cgal/Qt_widget/demo/Qt_widget/tutorial2.cpp

86 lines
2.2 KiB
C++

// Copyright (c) 2002-2004,2007 INRIA Sophia-Antipolis (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 Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// 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.
//
// $URL$
// $Id$
//
//
// Author(s) : Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
#include <CGAL/basic.h>
#ifndef CGAL_USE_QT
#include <iostream>
int main(int, char*){
std::cout << "Sorry, this demo needs QT..." << std::endl; return 0;}
#else
#include <CGAL/Cartesian.h>
#include <CGAL/Delaunay_triangulation_2.h>
#include <CGAL/IO/Qt_widget_Triangulation_2.h>
#include <CGAL/IO/Qt_widget.h>
#include <qapplication.h>
#include <qmainwindow.h>
typedef CGAL::Cartesian<double> K;
typedef K::Point_2 Point_2;
typedef CGAL::Delaunay_triangulation_2<K> Delaunay;
Delaunay dt;
class My_window : public QMainWindow {
Q_OBJECT
public:
My_window(int x, int y)
{
widget = new CGAL::Qt_widget(this);
widget->resize(x,y);
widget->set_window(0, x, 0, y);
connect(widget, SIGNAL(redraw_on_back()),
this, SLOT(redraw_win()));
connect(widget, SIGNAL(s_mousePressEvent(QMouseEvent*)),
this, SLOT(mousePressEvent(QMouseEvent*)));
setCentralWidget(widget);
};
private slots:
void redraw_win()
{
*widget << dt;
}
void mousePressEvent(QMouseEvent *e)
{
dt.insert(Point_2(widget->x_real(e->x()), widget->y_real(e->y())));
widget->redraw();
}
private: // private data member
CGAL::Qt_widget* widget;
};
//moc_source_file : tutorial2.cpp
#include "tutorial2.moc"
int main( int argc, char **argv )
{
QApplication app( argc, argv );
My_window *w = new My_window(400,400);
app.setMainWidget( w);
w->show();
return app.exec();
}
#endif