When painting the background for a QAbstractScrollArea, the brushOrigin was calculated for every brush type although it was not needed. Since this can be very time consuming (e.g for a QTreeView with non-uniform row sizes) it should be avoided when possible. Therefore check if the brush is a texture and skip the calculation if it is not the case. Also do not restore the old brushOrigin since the painter is not used at all afterwards. Task-number: QTBUG-61763 Change-Id: I66cbe1b796cb5cad4c78e656fb86d199d8e4bde9 Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io> Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>