void MainWindow::onTimelineDockTriggered(bool checked)
{
    if (checked) {
        m_timelineDock->show();
        m_timelineDock->raise();
    }
}
void MainWindow::onTimelineDockTriggered(bool checked)
{
    if (checked) {
        m_timelineDock->show();
        m_timelineDock->raise();
    }
}