C++ QtQuick2ApplicationViewer::rootObject方法代码示例

int main(int argc, char * argv[])
{
    qsrand(QTime::currentTime().msec());

    qmlRegisterType<QmlMapInterface>("DumbHome", 1, 0, "QmlMapInterface");
    qmlRegisterType<MapObjectQmlWrapper>("DumbHome", 1, 0, "MapObjectQmlWrapper");

    QGuiApplication app(argc, argv);

    QtQuick2ApplicationViewer viewer;
    viewer.setMainQmlFile(QStringLiteral("qmlsrc/code-if-wanna-live/main.qml"));
    viewer.showExpanded();

    Map * const map = createMap();
    World world(map, new MapPhysics(*map));

    PlayerActionsQmlReceiver playerActionsQmlReceiver(world.getMap());
    viewer.rootContext()->setContextProperty("playerActionsReceiver", &playerActionsQmlReceiver);

    QmlMapInterface * const qmlMapInterface =
            viewer.rootObject()->findChild<QmlMapInterface*>("qmlMapInterface");

    if (qmlMapInterface != nullptr)
    {
        qmlMapInterface->setMap(world.getMap());
        world.getMapPhysics().addListener(*qmlMapInterface);
    }

    return app.exec();
}

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

    QtQuick2ApplicationViewer *viewer = new QtQuick2ApplicationViewer;

    qmlRegisterType<BrowserDbus>("browserdbusinterface",1,0,"BrowserInterface");
    qmlRegisterType<Bookmark>("browserdbusinterface",1,0,"Tmp");

    viewer->setMainQmlFile(QStringLiteral("qml/demoui/main.qml"));
    viewer->setFlags(Qt::WindowStaysOnTopHint|Qt::FramelessWindowHint);
    viewer->setGeometry(0, 0, 1024, 80);
    viewer->show();

    QObject::connect((QObject*)viewer->rootObject(), SIGNAL(bookmarksopen(bool)),(QObject*)viewer, SLOT(changeGeometry(bool)));

    return app.exec();
}

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

    World world;
    for (int i = 0; i < 500; i++)
    {
        int x = qrand() % ((2500 + 1) - 0) + 0;
        int y = qrand() % ((2500 + 1) - 0) + 0;
        if(!world.ContainsCellAt(x, y))
            world.AddCell(x,y);
    }

    QtQuick2ApplicationViewer viewer;
    viewer.rootContext()->setContextProperty("world", &world);
    viewer.setMainQmlFile(QStringLiteral("qml/UI/main.qml"));
    viewer.showExpanded();

    auto rootobject = viewer.rootObject();
    QObject::connect(rootobject, SIGNAL(evolve()), &world, SLOT(Evolve()));

    return app.exec();
}

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    QtQuick2ApplicationViewer viewer;

    QVariantMap androidContext;
    androidContext["density"] = 1.0;

#ifdef Q_OS_ANDROID
    QAndroidJniObject activity = QAndroidJniObject::callStaticObjectMethod("org/qtproject/qt5/android/QtNative", "activity", "()Landroid/app/Activity;");
    QAndroidJniObject resource = activity.callObjectMethod("getResources","()Landroid/content/res/Resources;");
    QAndroidJniObject metrics = resource.callObjectMethod("getDisplayMetrics","()Landroid/util/DisplayMetrics;");
    androidContext["density"] = metrics.getField<float>("density");
#endif

    viewer.setMainQmlFile(QStringLiteral("qml/androidmetricdemo/splash.qml"));
    viewer.showExpanded();

    QQuickItem *root = viewer.rootObject();
    QMetaObject::invokeMethod(root,"init",Qt::QueuedConnection,
                              Q_ARG(QVariant,androidContext));

    return app.exec();
}

int main(int argc, char *argv[])
{
    QOptions options(get_common_options());
    options.add(QLatin1String("QMLPlayer options"))
            ("scale", 1.0, QLatin1String("scale of graphics context. 0: auto"))
            ;
    options.parse(argc, argv);
    if (options.value(QLatin1String("help")).toBool()) {
        options.print();
        return 0;
    }

    QGuiApplication app(argc, argv);
    QDir::setCurrent(qApp->applicationDirPath());
    qDebug() << "arguments======= " << app.arguments();
    set_opengl_backend(options.option(QStringLiteral("gl")).value().toString(), app.arguments().first());
    load_qm(QStringList() << QStringLiteral("QMLPlayer"), options.value(QStringLiteral("language")).toString());
    QtQuick2ApplicationViewer viewer;
    QString binDir = qApp->applicationDirPath();
    if (binDir.endsWith(QLatin1String(".app/Contents/MacOS"))) {
        binDir.remove(QLatin1String(".app/Contents/MacOS"));
        binDir = binDir.left(binDir.lastIndexOf(QLatin1String("/")));
    }
    QQmlEngine *engine = viewer.engine();
    if (!engine->importPathList().contains(binDir))
        engine->addImportPath(binDir);
    qDebug() << engine->importPathList();
    engine->rootContext()->setContextProperty(QStringLiteral("PlayerConfig"), &Config::instance());
    qDebug(">>>>>>>>devicePixelRatio: %f", qApp->devicePixelRatio());
    QScreen *sc = app.primaryScreen();
    qDebug() << "dpi phy: " << sc->physicalDotsPerInch() << ", logical: " << sc->logicalDotsPerInch() << ", dpr: " << sc->devicePixelRatio()
                << "; vis rect:" << sc->virtualGeometry();
    // define a global var for js and qml
    engine->rootContext()->setContextProperty(QStringLiteral("screenPixelDensity"), qApp->primaryScreen()->physicalDotsPerInch()*qApp->primaryScreen()->devicePixelRatio());
    qreal r = sc->physicalDotsPerInch()/sc->logicalDotsPerInch();
    if (std::isinf(r) || std::isnan(r))
#if defined(Q_OS_ANDROID)
        r = 2.0;
#else
        r = 1.0;
#endif
    float sr = options.value(QStringLiteral("scale")).toFloat();
#if defined(Q_OS_ANDROID)
    sr = r;
    if (sr > 2.0)
        sr = 2.0; //FIXME
#endif
    if (qFuzzyIsNull(sr))
        sr = r;
    engine->rootContext()->setContextProperty(QStringLiteral("scaleRatio"), sr);
    QString qml = QStringLiteral("qml/QMLPlayer/main.qml");
    if (QFile(qApp->applicationDirPath() + QLatin1String("/") + qml).exists())
        qml.prepend(qApp->applicationDirPath() + QLatin1String("/"));
    else
        qml.prepend(QLatin1String("qrc:///"));
    viewer.setMainQmlFile(qml);
    viewer.show();
    QOption op = options.option(QStringLiteral("width"));
    if (op.isSet())
        viewer.setWidth(op.value().toInt());
    op = options.option(QStringLiteral("height"));
    if (op.isSet())
        viewer.setHeight(op.value().toInt());
    op = options.option(QStringLiteral("x"));
    if (op.isSet())
        viewer.setX(op.value().toInt());
    op = options.option(QStringLiteral("y"));
    if (op.isSet())
        viewer.setY(op.value().toInt());
    if (options.value(QStringLiteral("fullscreen")).toBool())
        viewer.showFullScreen();

    viewer.setTitle(QStringLiteral("QMLPlayer based on QtAV. [email protected]"));
    /*
     * find root item, then root.init(argv). so we can deal with argv in qml
     */
#if 1
    QString json = app.arguments().join(QStringLiteral("\",\""));
    json.prepend(QLatin1String("[\"")).append(QLatin1String("\"]"));
    json.replace(QLatin1String("\\"), QLatin1String("/")); //FIXME
    QMetaObject::invokeMethod(viewer.rootObject(), "init", Q_ARG(QVariant, json));
//#else
    QObject *player = viewer.rootObject()->findChild<QObject*>(QStringLiteral("player"));
    if (player) {
        AppEventFilter *ae = new AppEventFilter(player, player);
        qApp->installEventFilter(ae);
    }
    QString file;
#ifdef Q_OS_ANDROID
    file = QAndroidJniObject::callStaticObjectMethod("org.qtav.qmlplayer.QMLPlayerActivity"
                                                                              , "getUrl"
                                                                              , "()Ljava/lang/String;")
            .toString();
#endif
    if (app.arguments().size() > 1) {
        file = options.value(QStringLiteral("file")).toString();
        if (file.isEmpty()) {
            if (argc > 1 && !app.arguments().last().startsWith(QLatin1Char('-')) && !app.arguments().at(argc-2).startsWith(QLatin1Char('-')))
                file = app.arguments().last();
        }
//.........这里部分代码省略.........

int main(int argc, char *argv[])
{
    QOptions options(get_common_options());
    options.add("QMLPlayer options")
            ("scale", 1.0, "scale of graphics context. 0: auto")
            ;
    options.parse(argc, argv);
    if (options.value("help").toBool()) {
        options.print();
        return 0;
    }

    QGuiApplication app(argc, argv);
    QtQuick2ApplicationViewer viewer;
    qDebug(">>>>>>>>devicePixelRatio: %f", qApp->devicePixelRatio());
    QScreen *sc = app.primaryScreen();
    qDebug() << "dpi phy: " << sc->physicalDotsPerInch() << ", logical: " << sc->logicalDotsPerInch() << ", dpr: " << sc->devicePixelRatio()
                << "; vis rect:" << sc->virtualGeometry();
    // define a global var for js and qml
    viewer.engine()->rootContext()->setContextProperty("screenPixelDensity", qApp->primaryScreen()->physicalDotsPerInch()*qApp->primaryScreen()->devicePixelRatio());
    qreal r = sc->physicalDotsPerInch()/sc->logicalDotsPerInch();
    if (std::isinf(r) || std::isnan(r))
#if defined(Q_OS_ANDROID)
        r = 2.0;
#else
        r = 1.0;
#endif
    float sr = options.value("scale").toFloat();
    if (qFuzzyIsNull(sr))
        sr = r;
    viewer.engine()->rootContext()->setContextProperty("scaleRatio", sr);
    QString qml = "qml/QMLPlayer/main.qml";
    if (QFile(qApp->applicationDirPath() + "/" + qml).exists())
        qml.prepend(qApp->applicationDirPath() + "/");
    else
        qml.prepend("qrc:///");
    viewer.setMainQmlFile(qml);
    viewer.showExpanded();
    QOption op = options.option("width");
    if (op.isSet())
        viewer.setWidth(op.value().toInt());
    op = options.option("height");
    if (op.isSet())
        viewer.setHeight(op.value().toInt());
    op = options.option("x");
    if (op.isSet())
        viewer.setX(op.value().toInt());
    op = options.option("y");
    if (op.isSet())
        viewer.setY(op.value().toInt());
    if (options.value("fullscreen").toBool())
        viewer.showFullScreen();

    viewer.setTitle("QMLPlayer based on QtAV. [email protected]");
    /*
     * find root item, then root.init(argv). so we can deal with argv in qml
     */
#if 1
    QString json = app.arguments().join("\",\"");
    json.prepend("[\"").append("\"]");
    json.replace("\\", "/"); //FIXME
    QMetaObject::invokeMethod(viewer.rootObject(), "init", Q_ARG(QVariant, json));
//#else
    if (app.arguments().size() > 1) {
        qDebug("arguments > 1");
        QObject *player = viewer.rootObject()->findChild<QObject*>("player");
        QString file = options.value("file").toString();
        if (player && !file.isEmpty()) {
            if (QFile(file).exists())
                file.prepend("file://");
            file.replace("\\", "/"); //qurl
            QMetaObject::invokeMethod(player, "play", Q_ARG(QUrl, QUrl(file)));
        }
    }
#endif
    QObject::connect(viewer.rootObject(), SIGNAL(requestFullScreen()), &viewer, SLOT(showFullScreen()));
    QObject::connect(viewer.rootObject(), SIGNAL(requestNormalSize()), &viewer, SLOT(showNormal()));
    ScreenSaver::instance().disable(); //restore in dtor
    return app.exec();
}