-
 Utils = require "../Utils"
 {Layer} = require "../Layer"
 {Events} = require "../Events"

			@value = @valueForPoint(event.x - @screenFrame.x)
			@knob.draggable._touchStart(event)

		@knobSize = options.knobSize or 10
	
	_updateFill: =>
		@fill.width = @knob.midX


	constructor: (options={}) ->
		options.backgroundColor ?= "#ccc"
		options.borderRadius ?= 50
		options.clip ?= false
		options.width ?= 300
		options.height ?= 10
		super options
				
