diff options
Diffstat (limited to 'src/quick/items/qquickimagebase.cpp')
| -rw-r--r-- | src/quick/items/qquickimagebase.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/quick/items/qquickimagebase.cpp b/src/quick/items/qquickimagebase.cpp index 8849c2005c..d7b5709bb0 100644 --- a/src/quick/items/qquickimagebase.cpp +++ b/src/quick/items/qquickimagebase.cpp @@ -56,8 +56,8 @@ QT_BEGIN_NAMESPACE bool QQuickImageBasePrivate::updateDevicePixelRatio(qreal targetDevicePixelRatio) { // QQuickImageProvider and SVG and PDF can generate a high resolution image when - // sourceSize is set (this function is only called if it's set). - // If sourceSize is not set then the provider default size will be used, as usual. + // sourceSize is set. If sourceSize is not set then the provider default size will + // be used, as usual. bool setDevicePixelRatio = false; if (url.scheme() == QLatin1String("image")) { setDevicePixelRatio = true; @@ -418,10 +418,14 @@ void QQuickImageBase::itemChange(ItemChange change, const ItemChangeData &value) Q_D(QQuickImageBase); // If the screen DPI changed, reload image. if (change == ItemDevicePixelRatioHasChanged && value.realValue != d->devicePixelRatio) { + const auto oldDpr = d->devicePixelRatio; // ### how can we get here with !qmlEngine(this)? that implies // itemChange() on an item pending deletion, which seems strange. if (qmlEngine(this) && isComponentComplete() && d->url.isValid()) { load(); + // not changed when loading (sourceSize might not be set) + if (d->devicePixelRatio == oldDpr) + d->updateDevicePixelRatio(value.realValue); } } QQuickItem::itemChange(change, value); |