diff options
| author | Tang HaiXiang <tanghaixiang@uniontech.com> | 2020-07-24 16:48:36 +0800 |
|---|---|---|
| committer | Tang HaiXiang <tanghaixiang@uniontech.com> | 2020-07-25 02:02:23 +0800 |
| commit | b4aee30692c166025b4e2283c19dbc1247bcce54 (patch) | |
| tree | d8c0e20bad9e97bf19c20c479828fcee9b04abf7 /src/gui/kernel/qhighdpiscaling_p.h | |
| parent | fd0473f489a570eedbd61b69c2d201fe92f6c05e (diff) | |
Fix under non-integer scaling incorrect update area
Given some decimal scaling, the clipping of the QRegion/QRect passed to the QRegion/QRect done inside paintEvent cannot handle the decimal scaling.
Solved by only converting QRect to a certain QRectF and calling QRectF overload instead of QRect.
Fixes: QTBUG-82601
Fixes: QTBUG-64854
Pick-to: 5.15
Change-Id: I0d8f4193aabfc0d917612db68d2a39ebb726fa2f
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Diffstat (limited to 'src/gui/kernel/qhighdpiscaling_p.h')
| -rw-r--r-- | src/gui/kernel/qhighdpiscaling_p.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/kernel/qhighdpiscaling_p.h b/src/gui/kernel/qhighdpiscaling_p.h index 1fee8564d9..ecbdabbb8d 100644 --- a/src/gui/kernel/qhighdpiscaling_p.h +++ b/src/gui/kernel/qhighdpiscaling_p.h @@ -204,7 +204,7 @@ inline QRegion scale(const QRegion ®ion, qreal scaleFactor, QPoint origin = Q QRegion scaled; for (const QRect &rect : region) - scaled += scale(rect, scaleFactor, origin); + scaled += scale(QRectF(rect), scaleFactor, origin).toRect(); return scaled; } |