Qt Reference Documentation

main.cpp Example File

graphicsview/portedcanvas/main.cpp
 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include <QStatusBar>
 #include <QMessageBox>
 #include <QMenuBar>
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QImage>
 #include <QTimer>

 #include "canvas.h"

 #include <stdlib.h>

 extern QString butterfly_fn;
 extern QString logo_fn;

 int main(int argc, char** argv)
 {
     Q_INIT_RESOURCE(portedcanvas);

     QApplication app(argc,argv);

     if ( argc > 1 )
         butterfly_fn = argv[1];
     else
         butterfly_fn = ":/trolltech/examples/graphicsview/portedcanvas/butterfly.png";

     if ( argc > 2 )
         logo_fn = argv[2];
     else
         logo_fn = ":/trolltech/examples/graphicsview/portedcanvas/qtlogo.png";

     QGraphicsScene canvas;
     canvas.setSceneRect(0, 0, 800, 600);
     Main m(canvas);
     m.resize(m.sizeHint());
     m.setWindowTitle("Ported Canvas Example");

 #if defined(Q_OS_SYMBIAN)
     m.showMaximized();
 #elif defined(Q_WS_MAEMO_5)
     m.show();
 #else
     if ( QApplication::desktop()->width() > m.width() + 10
         && QApplication::desktop()->height() > m.height() +30 )
         m.show();
     else
         m.showMaximized();
 #endif

     QTimer timer;
     QObject::connect(&timer, SIGNAL(timeout()), &canvas, SLOT(advance()));
     timer.start(30);

     QObject::connect( qApp, SIGNAL(lastWindowClosed()), qApp, SLOT(quit()) );

     return app.exec();
 }