PaintableStatefulDrawable¶

Overview¶

A trait for drawables for nodes that mix in Paintable that need to store state about what the current display is currently showing, so that updates to the node's fill/stroke will only be made on attributes that specifically changed (and no change will be necessary for an attribute that changed back to its original/currently-displayed value). Generally, this is used for DOM and SVG drawables.

Given the type (constructor) of a drawable, we'll mix in a combination of: - initialization/disposal with the State suffix - mark methods to be called on all drawables of nodes of this type, that set specific dirty flags @public

This will allow drawables that mix in this type to do the following during an update: 1. Check specific dirty flags (e.g. if the fill changed, update the fill of our SVG element). 2. Call setToCleanState() once done, to clear the dirty flags.

@author Jonathan Olson <jonathan.olson@colorado.edu>

Source Code¶

See the source for PaintableStatefulDrawable.js in the scenery repository.