columnIndex = 1;
for (int i = usedColumnIndices.length(); --i >= 0;) {
usedColumnIndices.clear(i);
}
PendingSpan pSpan;
for (int i = pendingSpans.size(); --i >= 0;) {
pSpan = (PendingSpan) pendingSpans.get(i);
if (pSpan != null) {
pSpan.rowsLeft--;
if (pSpan.rowsLeft == 0) {