progressBar->setResizeMode(QDeclarativeView::SizeRootObjectToView);
progressBar->setAlignment(Qt::AlignCenter);
progressBar->hide();
view= new QDeclarativeView();
progressBar->setResizeMode(QDeclarativeView::SizeRootObjectToView);
progressBar->setAlignment(Qt::AlignCenter);
progressBar->hide();
view= new QDeclarativeView();