* @since 2.1
*/
private IRegion modelRange2WidgetRange(IRegion region) {
if (fTextViewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension= (ITextViewerExtension5) fTextViewer;
return extension.modelRange2WidgetRange(region);
}
IRegion visibleRegion= fTextViewer.getVisibleRegion();
int start= region.getOffset() - visibleRegion.getOffset();
int end= start + region.getLength();