Qt Reference Documentation

# main.cpp Example File

graphicsview/portedcanvas/main.cpp

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     ** This file is part of the examples of the Qt Toolkit.
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     #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();
     }