Draw model while moving mouse in custom tool

[DanRathbun]

@jelcynek

I know that I could use place_component but this solution changes tool to ComponentTool and I need to change logic in onMouseMove so that solution cannot be used.

So you saw my example here ? Did you get any ideas from this ?

[code] undoable place_component() "MoveTool" clone

Continuing the discussion from: Model.place_component component_definition, boolean cannot be undone?: Here is an example of a single undoable place component operation. It is not a tool, rather it is a command. It achieves the single undo, via 3 linked operations. The first is attached to the following model#place_component() operation, and the last is attached to it’s predecessor. It can move both compound (groups, images and component instances,) and primitive objects. move_selection_se…