C++ QDeclarativeView::resize方法代码示例

int main(int argc, char **argv)
{
  QApplication app(argc, argv);
  gst_init(&argc, &argv);
  ges_init();

  registerTypes();

  QDeclarativeView view;
  QGLWidget *g = new QGLWidget;
  
  view.setViewport(g);

  createGLSurface("timelineSurface", &view);
  createGLSurface("editorSurface", &view);

  view.setSource(QUrl::fromLocalFile("Timeline.qml"));
  view.setResizeMode(QDeclarativeView::SizeRootObjectToView);
  view.resize(640, 480);
  view.show();

  if (!QDir::current().exists("media")) {
      qDebug () << "Media files missing. Download them by running './download.sh'";
      return -1;
  }

  QObject::connect((QObject*)view.engine(), SIGNAL(quit()), &app, SLOT(quit()));
  
  return app.exec();
}

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , plot_(0)
    , zoomer_( 0 )
    , picker_( 0 )
    , panner_( 0 )
    , pMethod_( 0 )
    , pModel_( 0 )
{
    plot_ = new Plot(this);
    setCentralWidget(plot_);

    zoomer_ = new QwtPlotZoomer( QwtPlot::xBottom, QwtPlot::yLeft, plot_->canvas() );
    zoomer_->setMousePattern( QwtEventPattern::MouseSelect2, Qt::RightButton, Qt::ControlModifier );
    zoomer_->setMousePattern( QwtEventPattern::MouseSelect3, Qt::RightButton );
    zoomer_->setRubberBand( QwtPicker::RectRubberBand );

    pMethod_ = new adcontrols::CentroidMethod;
    pModel_ = new CentroidMethodModel;
    int res = qmlRegisterType< CentroidMethodModel >( "com.scienceliaison.qml", 1, 0, "CentroidModel" );


    QDeclarativeView * view = new QDeclarativeView;
    view->setResizeMode(QDeclarativeView::SizeRootObjectToView);

    QDeclarativeContext * ctxt = view->rootContext();
    ctxt->setContextProperty( "centroidModel", pModel_ );

    //view->setSource( QUrl::fromLocalFile( "qml/ProcessMethodEditor.qml" ) );
    view->setSource( QUrl( "qrc:/files/qml/ProcessMethodEditor.qml") );

    QList< QDeclarativeError> errors = view->errors();
    for ( QList<QDeclarativeError>::const_iterator it = errors.begin(); it != errors.end(); ++it )
        QMessageBox::warning( parent, "QDeclarativeError", it->description() );

    view->setMinimumSize( 200, 250 );
    view->resize( QSize( 200, 350 ) );
    QDockWidget * dock = new QDockWidget;
    dock->setWidget( view );

    addDockWidget ( Qt::BottomDockWidgetArea, dock );
    draw_spectrum();
}

//.........这里部分代码省略.........
    } else {
        qDebug("Messageserver is already running.");
    }

    SettingsAdapter().setFastScrollAnchor("right");
#endif
#ifdef BB10_BUILD
    QProcess messageServerProcess;
    qDebug("Starting messageserver...");
    messageServerProcess.start("app/native/lib/qmf/bin/messageserver");
#endif

    qmlRegisterType<Entry>("meepasswords", 1, 0, "Entry");
    qmlRegisterType<EntryListModel>("meepasswords", 1, 0, "EntryListModel");
    qmlRegisterType<EntrySortFilterProxyModel>("meepasswords", 1, 0, "EntrySortFilterProxyModel");
    qmlRegisterType<EntryStorage>("meepasswords", 1, 0, "EntryStorage");

#ifdef SYNC_TO_IMAP_SUPPORT
    qmlRegisterType<FileHelper>("SyncToImap", 1, 0, "FileHelper");
    qmlRegisterType<ImapAccountHelper>("SyncToImap", 1, 0, "ImapAccountHelper");
    qmlRegisterType<ImapAccountListModel>("SyncToImap", 1, 0, "ImapAccountListModel");
    qmlRegisterType<ImapStorage>("SyncToImap", 1, 0, "ImapStorage");
#endif

#ifdef NFC_ENABLED
    qmlRegisterType<NfcTagWriter>("meepasswords", 1, 0, "NfcTagWriter");
#endif

    qmlRegisterType<QmlClipboardAdapter>("meepasswords", 1, 0, "QClipboard");
    qmlRegisterType<SettingsAdapter>("meepasswords", 1, 0, "SettingsAdapter");

    /*
     * Well, according to
     * http://doc.qt.nokia.com/4.7-snapshot/qdeclarativeperformance.html
     * the following shall help increasing the performance.
     * However, painting on a QGLWidget resulted in a major performance loss,
     * at least on an N900 using the experimental Qt version.
     */
#if ! defined(BB10_BUILD) && ! defined(QT5_BUILD)
    view->setAttribute(Qt::WA_OpaquePaintEvent);
    view->setAttribute(Qt::WA_NoSystemBackground);
    view->viewport()->setAttribute(Qt::WA_OpaquePaintEvent);
    view->viewport()->setAttribute(Qt::WA_NoSystemBackground);
#endif

#ifdef QT5_BUILD
//TODO
    app->setApplicationName("MeePasswords");
    app->setApplicationDisplayName("MeePasswords");
#else
    view->setWindowTitle("MeePasswords");
#endif

#if defined(MEEGO_EDITION_HARMATTAN)
    // Hack to automatically copy the data from an old installation.
    if (!FileHelper().exists("/home/user/.local/share/data/ruedigergad.com/meepasswords/encrypted.raw")
            && FileHelper().exists("/home/user/.local/share/data/MeePasswords_DefaultStorage/encrypted.raw")) {
        qDebug("Copying old storage.");
        FileHelper().mkdir("/home/user/.local/share/data/ruedigergad.com/meepasswords");
        FileHelper().cp("/home/user/.local/share/data/MeePasswords_DefaultStorage/encrypted.raw", "/home/user/.local/share/data/ruedigergad.com/meepasswords/encrypted.raw");
    }

    view->setSource(QUrl("qrc:/qml/harmattan/main2.qml"));
    view->showFullScreen();
#elif defined(QT_SIMULATOR)
    view->setSource(QUrl("qrc:/qml/harmattan/main.qml"));
    view->showFullScreen();
#elif defined(BB10_BUILD)
    view->setViewport(new QGLWidget());
    view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
    view->setSource(QUrl("qrc:/qml/bb10/main.qml"));
    view->setResizeMode(QDeclarativeView::SizeRootObjectToView);
    view->showMaximized();
#elif defined(QT5_BUILD)
    view->setResizeMode(QQuickView::SizeRootObjectToView);
    view->setSource(QUrl("qrc:/qml/qtquick2/main.qml"));
    view->resize(400, 500);
    view->show();
#else
    view->setResizeMode(QDeclarativeView::SizeRootObjectToView);
    view->setSource(QUrl("qrc:/qml/desktop/main.qml"));
    view->resize(400, 500);
    view->show();
#endif

    int ret = app->exec();

#if defined(LINUX_DESKTOP) || defined(WINDOWS_DESKTOP)
    if (messageServerStarted) {
        qDebug("Stopping messageserver...");
        messageServerProcess.kill();
    }
#endif
#ifdef BB10_BUILD
    qDebug("Stopping messageserver...");
    messageServerProcess.kill();
#endif

    return ret;
}