forked from qt-creator/qt-creator
Preview image is returned when a 2D item render results in a blank image. Also improved device pixel ratio handling. No longer always render preview at 2x ratio, if not needed. Change-Id: I67b7563dffea523ea85be23b6a0e8b802c0f03fb Fixes: QDS-2893 Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>