get_static_root_item_model

Gets the static root item model of the canvas.

Static item models are exactly the same as ordinary item models, except that the corresponding items do not move or change size when the canvas is scrolled or the scale changes.

Static items models are added to the static root item model in exactly the same way that ordinary item models are added to the root item model.

Parameters:

this

a Canvas.

Returns:

the static root item model, or null.