class GraphToControls

  # More efficient bridge between liveControl widgets and graph edits,

  # as opposed to letting each widget scan the graph and push lots of

  # tiny patches to it.

  constructor: (@graph) ->

    @activeSettings = new ActiveSettings(@graph)

    @effect = null

  ctxForEffect: (effect) ->

    @graph.Uri(effect.value.replace(

      "light9.bigasterisk.com/effect",

  setEffect: (effect) ->

    @clearSettings()

    @effect = effect

    @ctx = @ctxForEffect(@effect)

    # are these going to pile up? consider @graph.triggerHandler('GTC sync')

    @graph.runHandler(@syncFromGraph.bind(@), 'GraphToControls sync')

  newEffect: ->

    # wrong- this should be our editor's scratch effect, promoted to a

    # real one when you name it.

    U = (x) => @graph.Uri(x)

  _onSongTime: (t) ->

    @viewState.cursor.t(t)

  _onSongDuration: (d) ->

    d = 700 if d < 1 # bug is that asco isn't giving duration, but 0 makes the scale corrupt

    @viewState.zoomSpec.duration(d)

  _onSong: (s) ->

    @song = @playerSong if @followPlayerSong

  _onGraph: (graph) ->

    @project = new Project(graph)

  _onSetAdjuster: () ->

    @makeZoomAdjs()

  updateDebugSummary: ->

    elemCount = (tag) -> document.getElementsByTagName(tag).length

    @debug = "#{window.debug_zoomOrLayoutChangedCount} layout change,

     #{elemCount('light9-timeline-note')} notes,

     #{@selection.selected().length} selected

     #{elemCount('light9-timeline-graph-row')} rows,

     #{window.debug_adjsCount} adjuster items registered,

     #{window.debug_adjUpdateDisplay} adjuster updateDisplay calls,