diff options
Diffstat (limited to 'tests/auto/gui/image/qimage/tst_qimage.cpp')
| -rw-r--r-- | tests/auto/gui/image/qimage/tst_qimage.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/auto/gui/image/qimage/tst_qimage.cpp b/tests/auto/gui/image/qimage/tst_qimage.cpp index 6f372b0160..b668f57909 100644 --- a/tests/auto/gui/image/qimage/tst_qimage.cpp +++ b/tests/auto/gui/image/qimage/tst_qimage.cpp @@ -86,6 +86,7 @@ private slots: #endif void dotsPerMeterZero(); + void dotsPerMeterAndDpi(); void convertToFormatPreserveDotsPrMeter(); void convertToFormatPreserveText(); @@ -899,6 +900,27 @@ void tst_QImage::dotsPerMeterZero() QCOMPARE(img.dotsPerMeterX(), defaultDpmX); QCOMPARE(img.dotsPerMeterY(), defaultDpmY); + +} + +// verify that setting dotsPerMeter has an effect on the dpi. +void tst_QImage::dotsPerMeterAndDpi() +{ + QImage img(100, 100, QImage::Format_RGB32); + QVERIFY(!img.isNull()); + + QPoint defaultLogicalDpi(img.logicalDpiX(), img.logicalDpiY()); + QPoint defaultPhysicalDpi(img.physicalDpiX(), img.physicalDpiY()); + + img.setDotsPerMeterX(100); // set x + QCOMPARE(img.logicalDpiY(), defaultLogicalDpi.y()); // no effect on y + QCOMPARE(img.physicalDpiY(), defaultPhysicalDpi.y()); + QVERIFY(img.logicalDpiX() != defaultLogicalDpi.x()); // x changed + QVERIFY(img.physicalDpiX() != defaultPhysicalDpi.x()); + + img.setDotsPerMeterY(200); // set y + QVERIFY(img.logicalDpiY() != defaultLogicalDpi.y()); // y changed + QVERIFY(img.physicalDpiY() != defaultPhysicalDpi.y()); } void tst_QImage::rotate_data() |