/**
* Stops an old text cursor thread and, if requested, starts a new one.
*
* @param start start/stop flag
*/
private void caret(final boolean start) {
caretTimer.stop();
if (start) caretTimer.start();
rend.caret(start);
}
@Override
public void actionPerformed(final ActionEvent e) {
rend.caret(!rend.caret());
}