21    QwtText frequencyLabel(QString(
"Frequency"), QwtText::PlainText);
 
   23    frequencyLabel.setColor(Qt::darkCyan);
 
   24    QFont font = frequencyLabel.font();
 
   25    font.setPointSize(13);
 
   27    frequencyLabel.setFont(font);
 
   28    plot()->enableAxis(QwtPlot::yRight);
 
   29    plot()->setAxisTitle(QwtPlot::yRight, frequencyLabel);
 
   32    p_dock->setAllowedAreas(Qt::AllDockWidgetAreas);
 
   33    p_dock->setFloating(
false);
 
   34    p_dock->setObjectName(
"DockWidget");
 
   35    p_dock->setMinimumWidth(130);
 
   36    addDockWidget(Qt::LeftDockWidgetArea, p_dock, Qt::Vertical);