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| author | axis <qt-info@nokia.com> | 2009-05-06 06:55:50 (GMT) |
|---|---|---|
| committer | axis <qt-info@nokia.com> | 2009-05-06 06:55:50 (GMT) |
| commit | b246f8a8beab858468777f433f49faf62edcb07e (patch) | |
| tree | 120844101aca654bf2f69fef5ea2647bf0bee13a /tests/auto/qpainter | |
| parent | 5791fde8526afc49cdbeee080ead9e8a305e3cd5 (diff) | |
| parent | a1d2c3c589a03cc427dcc22d109003576add9500 (diff) | |
| download | Qt-b246f8a8beab858468777f433f49faf62edcb07e.zip Qt-b246f8a8beab858468777f433f49faf62edcb07e.tar.gz Qt-b246f8a8beab858468777f433f49faf62edcb07e.tar.bz2 | |
Merge branch '4.5' of git@scm.dev.nokia.troll.no:qt/qt
Diffstat (limited to 'tests/auto/qpainter')
| -rw-r--r-- | tests/auto/qpainter/tst_qpainter.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/auto/qpainter/tst_qpainter.cpp b/tests/auto/qpainter/tst_qpainter.cpp index 0cb8346..b813d1d 100644 --- a/tests/auto/qpainter/tst_qpainter.cpp +++ b/tests/auto/qpainter/tst_qpainter.cpp @@ -229,6 +229,8 @@ private slots: void extendedBlendModes(); + void zeroOpacity(); + private: void fillData(); QColor baseColor( int k, int intensity=255 ); @@ -4153,5 +4155,21 @@ void tst_QPainter::extendedBlendModes() QVERIFY(testCompositionMode(191, 191, 96, QPainter::CompositionMode_Exclusion)); } +void tst_QPainter::zeroOpacity() +{ + QImage source(1, 1, QImage::Format_ARGB32_Premultiplied); + source.fill(0xffffffff); + + QImage target(1, 1, QImage::Format_RGB32); + target.fill(0xff000000); + + QPainter p(&target); + p.setOpacity(0.0); + p.drawImage(0, 0, source); + p.end(); + + QCOMPARE(target.pixel(0, 0), 0xff000000); +} + QTEST_MAIN(tst_QPainter) #include "tst_qpainter.moc" |