A node of a canvas: a box at a place, drawn by the :node slot of its
type.
%Hakushi.Node{id: "users", type: "table", x: 120, y: 80, data: %{name: "users"}}id- a string, unique in the canvas.type- the name of the:nodeslot that draws it ("default"unless set).x,y- the place of its top left corner, in the canvas's units (pixels at 100%).width,height- its size;nil(the default) for the size of its content. A node that people resize gets both.data- anything of the app's: the slot gets the node, and draws it from its data. It stays on the server; the browser has only what the slot renders.locked- a locked node does not move, resize or go away, in the browser or on the server.parent- the id of the node it is in (a frame, a group), ornil. A node moves with its parent and goes with it; people put a node in a group by dropping it there, and take it out by dragging it out. See Groups.