Request paint if scene changes for the canvas item

Otherwise for every scene the canvas is simply not painted anymore in the
designer. For example if you change the parent.

Change-Id: I4883eab44d73a59381230755f7caa596f2b6569f
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>

diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp
index 1b33680..8844eb9 100644 (file)
--- a/src/quick/items/context2d/qquickcanvasitem.cpp
+++ b/src/quick/items/context2d/qquickcanvasitem.cpp
@@ -626,8 +626,11 @@ void QQuickCanvasItem::itemChange(QQuickItem::ItemChange change, const QQuickIte
         return;
 
     Q_D(QQuickCanvasItem);
-    if (d->available)
+    if (d->available) {
+        if (d->dirtyAttributes & QQuickItemPrivate::ContentUpdateMask)
+            requestPaint();
         return;
+    }
 
     if (value.window== 0)
         return;