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KFileItemModelRolesUpdater: Generate thumbnails for visible files first

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Folder thumbnails are not cached as we cannot know whether something
inside a folder changed. Moreover, they are also a collage of several
files and might even traverse into subdirectories. This takes time.
This commit is contained in:
Kai Uwe Broulik 2021-11-16 20:35:05 +01:00
parent caa639fb44
commit cdb4a7909d
1 changed files with 10 additions and 1 deletions
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11
src/kitemviews/kfileitemmodelrolesupdater.cpp
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@ -1405,10 +1405,19 @@ QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
(2 * m_maximumVisibleItems)));
// Add visible items.
// Resolve files first, their previews are quicker.
QList<int> visibleDirs;
for (int i = m_firstVisibleIndex; i <= m_lastVisibleIndex; ++i) {
result.append(i);
const KFileItem item = m_model->fileItem(i);
if (item.isDir()) {
visibleDirs.append(i);
} else {
result.append(i);
}
}
result.append(visibleDirs);
// We need a reasonable upper limit for number of items to resolve after
// and before the visible range. m_maximumVisibleItems can be quite large
// when using Compact View.