void RemoveItemByIdx(int iItem)
{
int numRemoved = 0;
if (iItem != -1) {
// find the first matching item
while (iItem > 1 && m_vItems[iItem-1] == m_vItems[iItem]) {
iItem--;
}
// now remove all the matching items
TRef<ListItem> pListItem = m_vItems[iItem];
while (iItem < m_vItems.GetCount() && m_vItems[iItem] == pListItem) {
m_vItems.Remove(iItem);
numRemoved++;
}
if (iItem <= m_iSelItem) {
SetSelItemByIdx(m_iSelItem - numRemoved);
} else {
SetSelItemByIdx(m_iSelItem);
}
if (m_pScrollPane) {
// save the old top item, because shrinking the scroll pane could change it
int iOldTopItem = m_iTopItem;
m_pScrollPane->SetSize(m_vItems.GetCount());
if (iItem < iOldTopItem) {
SetScrollPosition(max(iOldTopItem - numRemoved, 0));
} else {
SetScrollPosition(min(iOldTopItem,
max(m_vItems.GetCount() - m_cVisibleItems, 0)));
}
}
NeedPaint();
}
}
