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Add test for invertPixels on indexed formats 

It wasn't tested and behaves in a very particular way.

Change-Id: I60a31681e5b221cf9a86df77e410a76ee4c10864
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
bb10
Allan Sandfeld Jensen 2019-12-19 15:00:15 +01:00
parent 09f19e48ac
commit 6227a0d2e2
1 changed files with 32 additions and 0 deletions
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32
tests/auto/gui/image/qimage/tst_qimage.cpp
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@ -191,6 +191,8 @@ private slots:
void invertPixelsRGB_data();
void invertPixelsRGB();
void invertPixelsIndexed();
void exifOrientation_data();
void exifOrientation();
@ -3086,6 +3088,36 @@ void tst_QImage::invertPixelsRGB()
QCOMPARE(qBlue(pixel) >> 4, (255 - 96) >> 4);
}
void tst_QImage::invertPixelsIndexed()
{
{
QImage image(1, 1, QImage::Format_Mono);
image.fill(Qt::color1);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 0);
}
{
QImage image(1, 1, QImage::Format_MonoLSB);
image.fill(Qt::color0);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 1);
}
{
QImage image(1, 1, QImage::Format_Indexed8);
image.setColorTable({0xff000000, 0xffffffff});
image.fill(Qt::black);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 255);
}
{
QImage image(1, 1, QImage::Format_Indexed8);
image.setColorTable({0xff000000, 0xffffffff, 0x80000000, 0x80ffffff, 0x00000000});
image.fill(Qt::white);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 254);
}
}
void tst_QImage::exifOrientation_data()
{
QTest::addColumn<QString>("fileName");