qzxing/examples/QMLBarcodeScanner/qmlcamera.cpp

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** This file is part of the examples of the Qt Mobility Components.
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#include <QtGui/QApplication>
#include <QtGui/QDesktopWidget>
#include <QtDeclarative/QDeclarativeView>
#include <QtDeclarative/QDeclarativeEngine>

#include <QZXing.h>

#if !defined(QT_NO_OPENGL)
#include <QtOpenGL/QGLWidget>
#endif

int main(int argc, char *argv[])
{

    QZXing::registerQMLTypes();

#if defined (Q_WS_X11) || defined (Q_WS_MAC) || defined (Q_OS_SYMBIAN)
    //### default to using raster graphics backend for now
    bool gsSpecified = false;
    for (int i = 0; i < argc; ++i) {
        QString arg = argv[i];
        if (arg == "-graphicssystem") {
            gsSpecified = true;
            break;
        }
    }

    if (!gsSpecified)
        QApplication::setGraphicsSystem("raster");
#endif

    QApplication application(argc, argv);
    const QString mainQmlApp = QLatin1String("qrc:/declarative-camera.qml");
    QDeclarativeView view;
#if !defined(QT_NO_OPENGL) && !defined(Q_WS_MAEMO_5) && !defined(Q_WS_S60)
    view.setViewport(new QGLWidget);
#endif
    view.setSource(QUrl(mainQmlApp));
    view.setResizeMode(QDeclarativeView::SizeRootObjectToView);
    // Qt.quit() called in embedded .qml by default only emits
    // quit() signal, so do this (optionally use Qt.exit()).
    QObject::connect(view.engine(), SIGNAL(quit()), qApp, SLOT(quit()));
#if defined(Q_OS_SYMBIAN) || defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
    view.setGeometry(application.desktop()->screenGeometry());
    view.showFullScreen();
#else
    view.setGeometry(QRect(100, 100, 800, 480));
    view.show();
#endif
    return application.exec();
}