Widget addition, movement, copying and deletion about gsoc-nui-editor HOT 3 CLOSED

Movement is implemented? I tried moving an item via drag and drop and it did not work.

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@flo: what I meant is child position changes within the parent node (UP/DOWN), but drag&drop can be implemented within the UITreeView as well :)
Though one problem is that it will only work for two elements displayed on the screen - since UITreeView doesn't know about the ScrollableArea it's in it won't be able to, for instance, scroll down if an element is dragged to the bottom of the screen (as is the case in IDEA).

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@rzats I think that would be acceptable for now if it doesn't scroll automatically. I guess you would still be able to use the mouse wheel for scrolling while dragging.

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