diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gui/painting/qregion.cpp | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/gui/painting/qregion.cpp b/src/gui/painting/qregion.cpp index b48b024..401773b 100644 --- a/src/gui/painting/qregion.cpp +++ b/src/gui/painting/qregion.cpp @@ -3859,23 +3859,28 @@ QRegion::QRegion(const QRect &r, RegionType t) QRegion::QRegion(const QPolygon &a, Qt::FillRule fillRule) { if (a.count() > 2) { - d = new QRegionData; - d->ref = 1; + QRegionPrivate *qt_rgn = PolygonRegion(a.constData(), a.size(), + fillRule == Qt::WindingFill ? WindingRule : EvenOddRule); + if (qt_rgn) { + d = new QRegionData; + d->ref = 1; #if defined(Q_WS_X11) - d->rgn = 0; - d->xrectangles = 0; + d->rgn = 0; + d->xrectangles = 0; #elif defined(Q_WS_WIN) - d->rgn = 0; + d->rgn = 0; #endif - d->qt_rgn = PolygonRegion(a.constData(), a.size(), - fillRule == Qt::WindingFill ? WindingRule : EvenOddRule); + d->qt_rgn = qt_rgn; + } else { + d = &shared_empty; + d->ref.ref(); + } } else { d = &shared_empty; d->ref.ref(); } } - QRegion::QRegion(const QRegion &r) { d = r.d; |