StaticBars for charts.js (undescore need)

staticbar.chartjs.coffee

Chart.types.Bar.extend
    name: 'StaticBar'
    draw: ->
      if _.isNumber(@options.barWidth)
        datasets       = @datasets.length
        columns        = @datasets[0].bars.length
        bars           = columns * datasets
        barsWidth      = bars * @options.barWidth
        datasetSpacing = @options.barDatasetSpacing * columns * (datasets - 1)
        paddings       = @scale.xScalePaddingRight + @scale.xScalePaddingLeft
        remainingSpace = @chart.width - barsWidth - datasetSpacing - paddings
        if remainingSpace < 0
          console.log "Bars don't fit!"
        else
          @options.barValueSpacing = remainingSpace / (columns * 2)
      Chart.types.Bar.prototype.draw.apply(@, arguments)