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scene/workspacescene: don't iterate through all child items twice

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Instead, use an iterator for the second loop to pick up where the first loop stopped
This commit is contained in:
Xaver Hugl 2024-08-20 13:32:09 +02:00
parent 60e3964322
commit b8b900891b
1 changed files with 5 additions and 5 deletions
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10
src/scene/workspacescene.cpp
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@ -154,7 +154,9 @@ Item *WorkspaceScene::overlayItem() const
static bool addCandidates(SurfaceItem *item, QList<SurfaceItem *> &candidates, ssize_t maxCount, QRegion &occluded)
{
const QList<Item *> children = item->sortedChildItems();
for (const auto &child : children | std::views::reverse) {
auto it = children.rbegin();
for (; it != children.rend(); it++) {
Item *const child = *it;
if (child->z() < 0) {
break;
}
@ -169,10 +171,8 @@ static bool addCandidates(SurfaceItem *item, QList<SurfaceItem *> &candidates, s
}
candidates.push_back(item);
occluded += item->mapToScene(item->opaque());
for (const auto &child : children | std::views::reverse) {
if (child->z() >= 0) {
continue;
}
for (; it != children.rend(); it++) {
Item *const child = *it;
if (child->isVisible() && !occluded.contains(child->mapToScene(child->boundingRect()).toAlignedRect())) {
if (!addCandidates(static_cast<SurfaceItem *>(child), candidates, maxCount, occluded)) {
return false;