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Make BaseGrid::UpdateMaps far less slow

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This commit is contained in:
Thomas Goyne 2014-03-04 20:19:12 -08:00
parent 9a347b0b29
commit 2a316e5a55
1 changed files with 3 additions and 3 deletions
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6
aegisub/src/base_grid.cpp
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@ -301,12 +301,12 @@ void BaseGrid::UpdateMaps(bool preserve_selected_rows) {
SetSelectedSet(sel);
}
else {
Selection lines;
copy(index_line_map.begin(), index_line_map.end(), inserter(lines, lines.begin()));
auto sorted = index_line_map;
sort(begin(sorted), end(sorted));
Selection new_sel;
// Remove lines which no longer exist from the selection
set_intersection(selection.begin(), selection.end(),
lines.begin(), lines.end(),
sorted.begin(), sorted.end(),
inserter(new_sel, new_sel.begin()));
SetSelectedSet(new_sel);