QQuickPaddedRectangle: prevent negative width and height

If the padding is larger than the available size, the rectangle node
should not be given a negative size, because the node is still rendered
and it results to undesired rendering artifacts.

Change-Id: I082649badb04fe33dbea2ca2c4efcf0f179f41a8
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/quickcontrols2/qquickpaddedrectangle.cpp b/src/quickcontrols2/qquickpaddedrectangle.cpp
index 3555d6d7..f7088d54 100644
--- a/src/quickcontrols2/qquickpaddedrectangle.cpp
+++ b/src/quickcontrols2/qquickpaddedrectangle.cpp
@@ -200,7 +200,10 @@ QSGNode *QQuickPaddedRectangle::updatePaintNode(QSGNode *node, UpdatePaintNodeDa
             m.translate(left, top);
             transformNode->setMatrix(m);
 
-            rectNode->setRect(boundingRect().adjusted(0, 0, -left-right, -top-bottom));
+            qreal w = qMax<qreal>(0.0, width() -left-right);
+            qreal h = qMax<qreal>(0.0, height() -top-bottom);
+
+            rectNode->setRect(QRectF(0, 0, w, h));
             rectNode->update();
         }
     }