diff options
| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2016-04-21 11:22:32 +0200 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2016-04-22 06:31:10 +0000 |
| commit | ccfe33dc670a1491d9e1daa2ae17f5fe30484276 (patch) | |
| tree | 4ef0c295d5fa702a23127a986712e05f959c39ac /tests | |
| parent | 5b54c352edbc597ec5283bc9cfdd77906350161f (diff) | |
QWidget::grab(): Use device pixel ratio.
Return pixmaps with device pixel ratio similar to QScreen::grabWindow(),
cf c0963486ce689e778d59dafd26d36d8ef9e3ee74.
Adapt kernel tests accordingly.
Task-number: QTBUG-52137
Change-Id: I9ce276d5e2d87ae0d39c8639267d1ac283fed854
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp index 1c2a74109f..b9fe40e64c 100644 --- a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp +++ b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp @@ -3035,8 +3035,23 @@ protected: QSize sizeHint() const { return QSize(500, 500); } }; +// Scale to remove devicePixelRatio should scaling be active. +static QPixmap grabFromWidget(QWidget *w, const QRect &rect) +{ + QPixmap pixmap = w->grab(rect); + const qreal devicePixelRatio = pixmap.devicePixelRatioF(); + if (!qFuzzyCompare(devicePixelRatio, qreal(1))) { + pixmap = pixmap.scaled((QSizeF(pixmap.size()) / devicePixelRatio).toSize(), + Qt::KeepAspectRatio, Qt::SmoothTransformation); + pixmap.setDevicePixelRatio(1); + } + return pixmap; +} + void tst_QWidget::testContentsPropagation() { + if (!qFuzzyCompare(qApp->devicePixelRatio(), qreal(1))) + QSKIP("This test does not work with scaling."); ContentsPropagationWidget widget; widget.setFixedSize(500, 500); widget.setContentsPropagation(false); @@ -9208,7 +9223,7 @@ void tst_QWidget::rectOutsideCoordinatesLimit_task144779() QPixmap correct(main.size()); correct.fill(Qt::green); - const QPixmap mainPixmap = main.grab(QRect(QPoint(0, 0), QSize(-1, -1))); + const QPixmap mainPixmap = grabFromWidget(&main, QRect(QPoint(0, 0), QSize(-1, -1))); QTRY_COMPARE(mainPixmap.toImage().convertToFormat(QImage::Format_RGB32), correct.toImage().convertToFormat(QImage::Format_RGB32)); @@ -9672,10 +9687,10 @@ void tst_QWidget::grab() p.drawTiledPixmap(0, 0, 128, 128, pal.brush(QPalette::Window).texture(), 0, 0); p.end(); - QPixmap actual = widget.grab(QRect(64, 64, 64, 64)); + QPixmap actual = grabFromWidget(&widget, QRect(64, 64, 64, 64)); QVERIFY(lenientCompare(actual, expected)); - actual = widget.grab(QRect(64, 64, -1, -1)); + actual = grabFromWidget(&widget, QRect(64, 64, -1, -1)); QVERIFY(lenientCompare(actual, expected)); // Make sure a widget that is not yet shown is grabbed correctly. |