grid.coffee

UI = window.UI ?= new Object

class UI.Grid
  @DefaultOptions = {
    width: 1280,
    height: 720,

    verticalSpacing: 30,
    horizontalSpacing: 30,

    verticalPadding: 100,
    horizontalPadding: 50
  }

  constructor: () ->
    @elements = []

  setup: (@options = Grid.DefaultOptions) ->
    for key of Grid.DefaultOptions
      @options[key] ?= Grid.DefaultOptions[key]
  
  attach: (object, callback) ->
    if @elements.length < 1
      callback object, @options.horizontalPadding, @options.verticalPadding
      @elements.push object

      return

    lastObject = @elements[@elements.length - 1]
    lastWidth  = lastObject.width()
    lastOffset = lastObject.offset()

    if lastOffset.left + lastWidth + object.width() + @options.horizontalSpacing + @options.horizontalPadding >= @options.width
      # This means we need to move it to a new row
      lastHeight = lastObject.height()

      callback? object, @options.horizontalPadding, lastOffset.top + lastHeight + @options.verticalSpacing
    else
      callback? object, lastOffset.left + lastWidth + @options.horizontalSpacing, lastOffset.top

    @elements.push object