}
public void actionPerformed(final ActionEvent e)
{
final GuideLine newGuideLine = new GuideLine(guideLine.getPosition(), true);
final LinealModel linealModel = getLinealModel();
final UndoManager undo = getRenderContext().getUndo();
undo.addChange(new UpdateVerticalGuidelineUndoEntry(index, newGuideLine, guideLine, getInstanceID()));
linealModel.updateGuideLine(index, newGuideLine);
}