draw functionality broken out into methods on each class

lib/morris.area.coffee

@@ -26,7 +26,7 @@ class Morris.Area extends Morris.Line
       path = @paths[i]
       if path isnt null
         path = path + "L#{@transX(@xmax)},#{@bottom}L#{@transX(@xmin)},#{@bottom}Z"
-        @morrisSVG.drawFilledPath(path, @fillForSeries(i))
+        @drawFilledPath(path, @fillForSeries(i))
     super()
 
   fillForSeries: (i) ->
@@ -35,3 +35,8 @@ class Morris.Area extends Morris.Line
       color.h,
       Math.min(255, color.s * 0.75),
       Math.min(255, color.l * 1.25))
+
+  drawFilledPath: (path, fill) ->
+    @raphael.path(path)
+      .attr('fill', fill)
+      .attr('stroke-width', 0)

lib/morris.bar.coffee

@@ -59,7 +59,7 @@ class Morris.Bar extends Morris.Grid
     prevLabelMargin = null
     for i in [0...@data.length]
       row = @data[@data.length - 1 - i]
-      label = @morrisSVG.drawXAxisLabel(row._x, ypos, row.label)
+      label = @drawXAxisLabel(row._x, ypos, row.label)
       labelBox = label.getBBox()
       # ensure a minimum of `xLabelMargin` pixels between labels, and ensure
       # labels don't overflow the container
@@ -94,7 +94,7 @@ class Morris.Bar extends Morris.Grid
           size = bottom - top
 
           top -= lastTop if @options.stacked
-          @morrisSVG.drawBar(left, top, barWidth, size, @colorFor(row, sidx, 'bar'))
+          @drawBar(left, top, barWidth, size, @colorFor(row, sidx, 'bar'))
 
           lastTop += size
         else
@@ -152,3 +152,13 @@ class Morris.Bar extends Morris.Grid
         """
     x = @left + (index + 0.5) * @width / @data.length
     [content, x]
+
+  drawXAxisLabel: (xPos, yPos, text) ->
+    label = @raphael.text(xPos, yPos, text)
+      .attr('font-size', @options.gridTextSize)
+      .attr('fill', @options.gridTextColor)
+
+  drawBar: (xPos, yPos, width, height, barColor) ->
+    @raphael.rect(xPos, yPos, width, height)
+      .attr('fill', barColor)
+      .attr('stroke-width', 0)

lib/morris.donut.coffee

@@ -54,7 +54,7 @@ class Morris.Donut
   redraw: ->
     @el.empty()
 
-    @morrisSVG = new Morris.SVG(@el[0], @options)
+    @raphael = new Raphael(@el[0])
 
     cx = @el.width() / 2
     cy = @el.height() / 2
@@ -71,14 +71,14 @@ class Morris.Donut
     @segments = []
     for d in @data
       next = last + min + C * (d.value / total)
-      seg = new Morris.DonutSegment(cx, cy, w*2, w, last, next, @options.colors[idx % @options.colors.length], d)
-      seg.render @morrisSVG
+      seg = new Morris.DonutSegment(cx, cy, w*2, w, last, next, @options.colors[idx % @options.colors.length], d, @raphael)
+      seg.render()
       @segments.push seg
       seg.on 'hover', @select
       last = next
       idx += 1
-    @text1 = @morrisSVG.drawEmptyDonutLabel(cx, cy - 10, 15, 800)
-    @text2 = @morrisSVG.drawEmptyDonutLabel(cx, cy + 10, 14)
+    @text1 = @drawEmptyDonutLabel(cx, cy - 10, 15, 800)
+    @text2 = @drawEmptyDonutLabel(cx, cy + 10, 14)
     max_value = Math.max.apply(null, d.value for d in @data)
     idx = 0
     for d in @data
@@ -109,12 +109,17 @@ class Morris.Donut
     text2scale = Math.min(maxWidth / text2bbox.width, maxHeightBottom / text2bbox.height)
     @text2.attr(transform: "S#{text2scale},#{text2scale},#{text2bbox.x + text2bbox.width / 2},#{text2bbox.y}")
 
+  drawEmptyDonutLabel: (xPos, yPos, fontSize, fontWeight) ->
+    text = @raphael.text(xPos, yPos, '').attr('font-size', fontSize)
+    text.attr('font-weight', fontWeight) if fontWeight?
+    return text
+
 
 # A segment within a donut chart.
 #
 # @private
 class Morris.DonutSegment extends Morris.EventEmitter
-  constructor: (@cx, @cy, @inner, @outer, p0, p1, @color, @data) ->
+  constructor: (@cx, @cy, @inner, @outer, p0, p1, @color, @data, @raphael) ->
     @sin_p0 = Math.sin(p0)
     @cos_p0 = Math.cos(p0)
     @sin_p1 = Math.sin(p1)
@@ -147,9 +152,18 @@ class Morris.DonutSegment extends Morris.EventEmitter
       "M#{ix0},#{iy0}" +
       "A#{r},#{r},0,#{@long},0,#{ix1},#{iy1}")
 
-  render: (morrisSVG) ->
-    @arc = morrisSVG.drawDonutArc(@hilight, @color)
-    @seg = morrisSVG.drawDonutSegment(@path, @color, => @fire('hover', @))
+  render: ->
+    @arc = @drawDonutArc(@hilight, @color)
+    @seg = @drawDonutSegment(@path, @color, => @fire('hover', @))
+
+  drawDonutArc: (path, color) ->
+    @raphael.path(path)
+      .attr(stroke: color, 'stroke-width': 2, opacity: 0)
+
+  drawDonutSegment: (path, color, hoverFunction) ->
+    @raphael.path(path)
+      .attr(fill: color, stroke: 'white', 'stroke-width': 3)
+      .hover(hoverFunction)
 
   select: =>
     unless @selected

lib/morris.grid.coffee

@@ -26,8 +26,7 @@ class Morris.Grid extends Morris.EventEmitter
       @options.postUnits = options.units
 
     # the raphael drawing instance
-    @r = new Raphael(@el[0])
-    @morrisSVG = new Morris.SVG(@el[0], @options)
+    @raphael = new Raphael(@el[0])
 
     # some redraw stuff
     @elementWidth = null
@@ -228,7 +227,7 @@ class Morris.Grid extends Morris.EventEmitter
   # If you need to re-size your charts, call this method after changing the
   # size of the container element.
   redraw: ->
-    @morrisSVG.clear()
+    @raphael.clear()
     @_calc()
     @drawGrid()
     @drawGoals()
@@ -239,12 +238,12 @@ class Morris.Grid extends Morris.EventEmitter
   #
   drawGoals: ->
     for goal, i in @options.goals
-      @morrisSVG.drawGoal("M#{@left},#{@transY(goal)}H#{@left + @width}")
+      @drawGoal("M#{@left},#{@transY(goal)}H#{@left + @width}")
 
   # draw events vertical lines
   drawEvents: ->
     for event, i in @events
-      @morrisSVG.drawEvent("M#{@transX(event)},#{@bottom}V#{@top}")
+      @drawEvent("M#{@transX(event)},#{@bottom}V#{@top}")
 
   # draw y axis labels, horizontal lines
   #
@@ -256,14 +255,17 @@ class Morris.Grid extends Morris.EventEmitter
       v = parseFloat(lineY.toFixed(@precision))
       y = @transY(v)
       if @options.axes
-        @morrisSVG.drawYAxisLabel(@left - @options.padding / 2, y, @yAxisFormat(v))
+        @drawYAxisLabel(@left - @options.padding / 2, y, @yAxisFormat(v))
       if @options.grid
-        @morrisSVG.drawGridLine("M#{@left},#{y}H#{@left + @width}")
+        @drawGridLine("M#{@left},#{y}H#{@left + @width}")
 
   # @private
   #
   measureText: (text, fontSize = 12) ->
-    @morrisSVG.measureText(text, fontSize)
+    tt = @raphael.text(100, 100, text).attr('font-size', fontSize)
+    ret = tt.getBBox()
+    tt.remove()
+    ret
 
   # @private
   #
@@ -282,6 +284,27 @@ class Morris.Grid extends Morris.EventEmitter
     if hit?
       @hover.update(hit...)
 
+  drawGoal: (path) ->
+    @raphael.path(path)
+      .attr('stroke', @options.goalLineColors[i % @options.goalLineColors.length])
+      .attr('stroke-width', @options.goalStrokeWidth)
+
+  drawEvent: (path) ->
+    @raphael.path(path)
+      .attr('stroke', @options.eventLineColors[i % @options.eventLineColors.length])
+      .attr('stroke-width', @options.eventStrokeWidth)
+
+  drawYAxisLabel: (xPos, yPos, text) ->
+    @raphael.text(xPos, yPos, text)
+      .attr('font-size', @options.gridTextSize)
+      .attr('fill', @options.gridTextColor)
+      .attr('text-anchor', 'end')
+
+  drawGridLine: (path) ->
+    @raphael.path(path)
+      .attr('stroke', @options.gridLineColor)
+      .attr('stroke-width', @options.gridStrokeWidth)
+
 # Parse a date into a javascript timestamp
 #
 #

lib/morris.line.coffee

@@ -138,7 +138,7 @@ class Morris.Line extends Morris.Grid
     ypos = @bottom + @options.gridTextSize * 1.25
     prevLabelMargin = null
     drawLabel = (labelText, xpos) =>
-      label = @morrisSVG.drawXAxisLabel(@transX(xpos), ypos, labelText)
+      label = @drawXAxisLabel(@transX(xpos), ypos, labelText)
       labelBox = label.getBBox()
       # ensure a minimum of `xLabelMargin` pixels between labels, and ensure
       # labels don't overflow the container
@@ -168,12 +168,12 @@ class Morris.Line extends Morris.Grid
     for i in [@options.ykeys.length-1..0]
       path = @paths[i]
       if path isnt null
-        @morrisSVG.drawLinePath(path, @colorFor(row, i, 'line')) #row isn't available here?
+        @drawLinePath(path, @colorFor(row, i, 'line')) #row isn't available here?
     @seriesPoints = ([] for i in [0...@options.ykeys.length])
     for i in [@options.ykeys.length-1..0]
       for row in @data
         if row._y[i]?
-          circle = @morrisSVG.drawLinePoint(row._x, row._y[i], @options.pointSize, @colorFor(row, i, 'point'), i)
+          circle = @drawLinePoint(row._x, row._y[i], @options.pointSize, @colorFor(row, i, 'point'), i)
         else
           circle = null
         @seriesPoints[i].push(circle)
@@ -246,6 +246,29 @@ class Morris.Line extends Morris.Grid
     else
       @options.lineColors[sidx % @options.lineColors.length]
 
+  drawXAxisLabel: (xPos, yPos, text) ->
+    @raphael.text(xPos, yPos, text)
+      .attr('font-size', @options.gridTextSize)
+      .attr('fill', @options.gridTextColor)
+
+  drawLinePath: (path, lineColor) ->
+    @raphael.path(path)
+      .attr('stroke', lineColor)
+      .attr('stroke-width', @options.lineWidth)
+
+  drawLinePoint: (xPos, yPos, size, pointColor, lineIndex) ->
+    @raphael.circle(xPos, yPos, size)
+      .attr('fill', pointColor)
+      .attr('stroke-width', @strokeWidthForSeries(lineIndex))
+      .attr('stroke', @strokeForSeries(lineIndex))
+
+  # @private
+  strokeWidthForSeries: (index) ->
+    @options.pointWidths[index % @options.pointWidths.length]
+
+  # @private
+  strokeForSeries: (index) ->
+    @options.pointStrokeColors[index % @options.pointStrokeColors.length]
 
 # generate a series of label, timestamp pairs for x-axis labels
 #

lib/morris.svg.coffee

@@ -1,82 +0,0 @@
-class Morris.SVG
-
-  constructor: (element, options) ->
-    @raphael = new Raphael(element)
-    @options = options
-
-  clear: ->
-    @raphael.clear()
-
-  drawGoal: (path) ->
-    @raphael.path(path)
-      .attr('stroke', @options.goalLineColors[i % @options.goalLineColors.length])
-      .attr('stroke-width', @options.goalStrokeWidth)
-
-  drawEvent: (path) ->
-    @raphael.path(path)
-      .attr('stroke', @options.eventLineColors[i % @options.eventLineColors.length])
-      .attr('stroke-width', @options.eventStrokeWidth)
-
-  drawYAxisLabel: (xPos, yPos, text) ->
-    @raphael.text(xPos, yPos, text)
-      .attr('font-size', @options.gridTextSize)
-      .attr('fill', @options.gridTextColor)
-      .attr('text-anchor', 'end')
-
-  drawXAxisLabel: (xPos, yPos, text) ->
-    label = @raphael.text(xPos, yPos, text)
-      .attr('font-size', @options.gridTextSize)
-      .attr('fill', @options.gridTextColor)
-
-  drawGridLine: (path) ->
-    @raphael.path(path)
-      .attr('stroke', @options.gridLineColor)
-      .attr('stroke-width', @options.gridStrokeWidth)
-
-  measureText: (text, fontSize = 12) ->
-    tt = @raphael.text(100, 100, text).attr('font-size', fontSize)
-    ret = tt.getBBox()
-    tt.remove()
-    ret
-
-  drawEmptyDonutLabel: (xPos, yPos, fontSize, fontWeight) ->
-    text = @raphael.text(xPos, yPos, '').attr('font-size', fontSize)
-    text.attr('font-weight', fontWeight) if fontWeight?
-    return text
-
-  drawDonutArc: (path, color) ->
-    @raphael.path(path).attr(stroke: color, 'stroke-width': 2, opacity: 0)
-
-  drawDonutSegment: (path, color, hoverFunction) ->
-    @raphael.path(path)
-      .attr(fill: color, stroke: 'white', 'stroke-width': 3)
-      .hover(hoverFunction)
-
-  drawFilledPath: (path, fill) ->
-    @raphael.path(path)
-      .attr('fill', fill)
-      .attr('stroke-width', 0)
-
-  drawLinePath: (path, lineColor) ->
-    @raphael.path(path)
-      .attr('stroke', lineColor)
-      .attr('stroke-width', @options.lineWidth)
-
-  drawLinePoint: (xPos, yPos, size, pointColor, lineIndex) ->
-    circle = @raphael.circle(xPos, yPos, size)
-      .attr('fill', pointColor)
-      .attr('stroke-width', @strokeWidthForSeries(lineIndex))
-      .attr('stroke', @strokeForSeries(lineIndex))
-
-  drawBar: (xPos, yPos, width, height, barColor) ->
-    @raphael.rect(xPos, yPos, width, height)
-      .attr('fill', barColor)
-      .attr('stroke-width', 0)
-
-  # @private
-  strokeWidthForSeries: (index) ->
-    @options.pointWidths[index % @options.pointWidths.length]
-
-  # @private
-  strokeForSeries: (index) ->
-    @options.pointStrokeColors[index % @options.pointStrokeColors.length]

spec/lib/line/line_spec.coffee

@@ -25,10 +25,10 @@ describe 'Morris.Line', ->
       pointStrokeColors: [red, blue]
       pointWidths: [1, 2]
       pointFillColors: [null, red]
-    chart.morrisSVG.strokeWidthForSeries(0).should.equal 1
-    chart.morrisSVG.strokeForSeries(0).should.equal red
-    chart.morrisSVG.strokeWidthForSeries(1).should.equal 2
-    chart.morrisSVG.strokeForSeries(1).should.equal blue
+    chart.strokeWidthForSeries(0).should.equal 1
+    chart.strokeForSeries(0).should.equal red
+    chart.strokeWidthForSeries(1).should.equal 2
+    chart.strokeForSeries(1).should.equal blue
     chart.colorFor(chart.data[0], 0, 'point').should.equal chart.colorFor(chart.data[0], 0, 'line')
     chart.colorFor(chart.data[1], 1, 'point').should.equal red