resize legend based on width and bbox pos

resize.coffee

    _spaceLines: ->
      keys = d3.selectAll('.key')[0]

      extraRows = 0
      _lineSpacer = (d, i) =>
        keyPos = keys[i].getBBox().x
        keyEdge = keyPos + keys[i].getBBox().width

        edge = @w - @m*2

        console.log keyEdge
        console.log edge
        
        if keyEdge > edge
          extraRows += 1
          val = "#{(extraRows - 1) * @gridOffset*6}, #{@gridOffset * 6 }"
        else
          val = "#{i*@gridOffset*6}, 0"

        return val