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-rw-r--r--examples/declarative/dynamic/qml/itemCreation.js82
1 files changed, 82 insertions, 0 deletions
diff --git a/examples/declarative/dynamic/qml/itemCreation.js b/examples/declarative/dynamic/qml/itemCreation.js
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+var itemComponent = null;
+var draggedItem = null;
+var startingMouse;
+var startingZ;
+//Until QT-2385 is resolved we need to convert to scene coordinates manually
+var xOffset;
+var yOffset;
+function setSceneOffset()
+{
+ xOffset = 0;
+ yOffset = 0;
+ var p = itemButton;
+ while(p != window){
+ xOffset += p.x;
+ yOffset += p.y;
+ p = p.parent;
+ }
+}
+
+function startDrag(mouse)
+{
+ setSceneOffset();
+ startingMouse = { x: mouse.x, y: mouse.y }
+ loadComponent();
+}
+
+//Creation is split into two functions due to an asyncronous wait while
+//possible external files are loaded.
+
+function loadComponent() {
+ if (itemComponent != null) //Already loaded the component
+ createItem();
+
+ itemComponent = createComponent(itemButton.file);
+ //print(itemButton.file)
+ if(itemComponent.isLoading){
+ component.statusChanged.connect(finishCreation);
+ }else{//Depending on the content, it can be ready or error immediately
+ createItem();
+ }
+}
+
+function createItem() {
+ if (itemComponent.isReady && draggedItem == null) {
+ draggedItem = itemComponent.createObject();
+ draggedItem.parent = window;
+ draggedItem.image = itemButton.image;
+ draggedItem.x = xOffset;
+ draggedItem.y = yOffset;
+ startingZ = draggedItem.z;
+ draggedItem.z = 4;//On top
+ } else if (itemComponent.isError) {
+ draggedItem = null;
+ print("error creating component");
+ print(component.errorsString());
+ }
+}
+
+function moveDrag(mouse)
+{
+ if(draggedItem == null)
+ return;
+
+ draggedItem.x = mouse.x + xOffset - startingMouse.x;
+ draggedItem.y = mouse.y + yOffset - startingMouse.y;
+}
+
+function endDrag(mouse)
+{
+ if(draggedItem == null)
+ return;
+
+ if(draggedItem.x + draggedItem.width > toolbox.x){ //Don't drop it in the toolbox
+ draggedItem.destroy();
+ draggedItem = null;
+ }else{
+ draggedItem.z = startingZ;
+ draggedItem.created = true;
+ draggedItem = null;
+ }
+}
+