int offset = verifyEvent.start <= verifyEvent.end ? verifyEvent.start : verifyEvent.end;
int length = verifyEvent.start <= verifyEvent.end ? verifyEvent.end - verifyEvent.start : verifyEvent.start
- verifyEvent.end;
// apply auto edit strategy
AutoEditParameters autoEditParameters = new AutoEditParameters( text, offset, length, -1, true );
autoEditStrategy.customizeAutoEditParameters( oldText, autoEditParameters );
// get current selection
Point oldSelection = combo.getSelection();