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| author | Bjoern Erik Nilsen <bjorn.nilsen@nokia.com> | 2009-04-29 15:34:48 (GMT) |
|---|---|---|
| committer | Bjoern Erik Nilsen <bjorn.nilsen@nokia.com> | 2009-04-29 15:56:11 (GMT) |
| commit | 21958b48caca3423320f3e5e0e83096ca46b4d40 (patch) | |
| tree | de7d5e7766132dcb483b8cc0d23623a59df35f05 | |
| parent | 5969625334270892e39b6b43f4da735b830abdbe (diff) | |
| download | Qt-21958b48caca3423320f3e5e0e83096ca46b4d40.zip Qt-21958b48caca3423320f3e5e0e83096ca46b4d40.tar.gz Qt-21958b48caca3423320f3e5e0e83096ca46b4d40.tar.bz2 | |
QTransform::map(const QRegion&) cut-off for single rect regions.
Avoid QRegion<->QPainterPath conversion if possible.
Reviewed-by: Samuel
| -rw-r--r-- | src/gui/painting/qtransform.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/painting/qtransform.cpp b/src/gui/painting/qtransform.cpp index af27fd5..2383272 100644 --- a/src/gui/painting/qtransform.cpp +++ b/src/gui/painting/qtransform.cpp @@ -1317,12 +1317,16 @@ QRegion QTransform::map(const QRegion &r) const TransformationType t = type(); if (t == TxNone) return r; + if (t == TxTranslate) { QRegion copy(r); copy.translate(qRound(affine._dx), qRound(affine._dy)); return copy; } + if (t == TxScale && r.numRects() == 1) + return QRegion(mapRect(r.boundingRect())); + QPainterPath p = map(qt_regionToPath(r)); return p.toFillPolygon(QTransform()).toPolygon(); } |