if (OS.GTK_VERSION >= OS.VERSION (2, 3, 2)) {
if (OS.GTK_VERSION >= OS.VERSION (2, 3, 2) && OS.GTK_VERSION < OS.VERSION (2, 6, 3)) {
void clear () {	if (parent.currentItem == this) return;	if (cached || (parent.style & SWT.VIRTUAL) == 0) {		int columnCount = OS.gtk_tree_model_get_n_columns (parent.modelHandle);		for (int i=Tree.CHECKED_COLUMN; i<columnCount; i++) {			OS.gtk_tree_store_set (parent.modelHandle, handle, i, 0, -1);		}		/*		* Bug in GTK.  When using fixed-height-mode,		* row changes do not cause the row to be repainted.  The fix is to		* invalidate the row when it is cleared.		*/		if ((parent.style & SWT.VIRTUAL) != 0) {			if (OS.GTK_VERSION >= OS.VERSION (2, 3, 2)) {				redraw ();			}		}	}	cached = false;	font = null;	cellFont = null;}