From cc670ec4364c1cf91c7221389ff47007198317f0 Mon Sep 17 00:00:00 2001
From: Martin Zielinski <martin.zielinski@nokia.com>
Date: Tue, 21 Jun 2011 13:29:49 +0200
Subject: [PATCH] Call update only if the item has the ItemHasContent Flag set

---
 src/qt-compositor/compositor_api/waylandsurfaceitem.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/qt-compositor/compositor_api/waylandsurfaceitem.cpp b/src/qt-compositor/compositor_api/waylandsurfaceitem.cpp
index cf930e1..0a41c55 100644
--- a/src/qt-compositor/compositor_api/waylandsurfaceitem.cpp
+++ b/src/qt-compositor/compositor_api/waylandsurfaceitem.cpp
@@ -219,5 +219,8 @@ QSGNode *WaylandSurfaceItem::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeDa
 void WaylandSurfaceItem::setUseTextureAlpha(bool useTextureAlpha)
 {
     m_useTextureAlpha = useTextureAlpha;
-    update();
+
+    if ((flags() & ItemHasContents) != 0) {
+        update();
+    }
 }
-- 
2.7.4