Only call update() in setGeometry() when it's a new rect.

qrenderdoc/3rdparty/flowlayout/FlowLayout.cpp

@@ -130,9 +130,15 @@ int FlowLayout::heightForWidth(int width) const
 
 void FlowLayout::setGeometry(const QRect &rect)
 {
+    bool needUpdate = (rect != m_prevRect);
+
     QLayout::setGeometry(rect);
     doLayout(rect, false);
-    update();
+
+    if(needUpdate)
+        update();
+
+    m_prevRect = rect;
 }
 
 QSize FlowLayout::sizeHint() const

qrenderdoc/3rdparty/flowlayout/FlowLayout.h

@@ -72,6 +72,7 @@ private:
     int smartSpacing(QStyle::PixelMetric pm) const;
 
     QList<QLayoutItem *> itemList;
+    QRect m_prevRect;
     bool m_fixedGrid;
     int m_hSpace;
     int m_vSpace;