--index; // Switch from 1-based indexing to 0-based indexing
s32 rowcount = m_rows.size();
- if (rowcount == 0) {
+ if (rowcount == 0 || index < 0) {
return;
- } else if (index < 0) {
- index = 0;
} else if (index >= rowcount) {
index = rowcount - 1;
}