Make component.createObject require a parent argument

For graphical objects (the common case) a common mistake is to not
parent a dynamically created item. Since you almost always want to add a
parent, and it's hard for a beginner to diagnose this problem, a parent
is now a required argument and dealt with by the createObject function.

Task-number: QTBUG-10110

1 files changed, 1 insertions, 2 deletions

diff --git a/examples/declarative/dynamic/qml/itemCreation.js b/examples/declarative/dynamic/qml/itemCreation.js
index 3c1b975..08f5320 100644
--- a/examples/declarative/dynamic/qml/itemCreation.js
+++ b/examples/declarative/dynamic/qml/itemCreation.js
@@ -42,8 +42,7 @@ function loadComponent() {
 
 function createItem() {
     if (itemComponent.status == Component.Ready && draggedItem == null) {
-        draggedItem = itemComponent.createObject();
-        draggedItem.parent = window;
+        draggedItem = itemComponent.createObject(window);
         draggedItem.image = itemButton.image;
         draggedItem.x = xOffset;
         draggedItem.y = yOffset;