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| author | Christian Ehrlicher <ch.ehrlicher@gmx.de> | 2018-06-30 14:49:05 +0200 |
|---|---|---|
| committer | Christian Ehrlicher <ch.ehrlicher@gmx.de> | 2018-09-17 14:01:31 +0000 |
| commit | 43ed09fed59d55a8792fad87ef9a75382b5c60ff (patch) | |
| tree | 3157cceda4735ec15c51f9b043a4238750b6217a /tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro | |
| parent | 2b177314139b830ca7e2d5bc414131b0dc9fd5b9 (diff) | |
QListView: Speedup handling of hidden items
Instead iterating through all rows to get the number of hidden items,
iterate over the hidden items which are fewer items.
Also don't create a temporary vector with visible flow positions by
remembering the count of hidden items before the working index and
adjusting them appropriately which gives a significant performance
boost when working with a large data set.
[ChangeLog][QtWidgets][QListWidget] Speedup handling of hidden items
when working with large data sets
Task-number: QTBUG-68977
Change-Id: I599b6e97945c245f02229145baad8363ec2bf2f5
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Diffstat (limited to 'tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro')
| -rw-r--r-- | tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro b/tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro new file mode 100644 index 0000000000..68537d09ea --- /dev/null +++ b/tests/benchmarks/widgets/itemviews/qlistview/qlistview.pro @@ -0,0 +1,7 @@ +QT += widgets testlib + +TEMPLATE = app +TARGET = tst_bench_qlistview + +SOURCES += tst_qlistview.cpp + |