mirror of
https://github.com/supanadit/todo.git
synced 2024-11-14 12:32:22 +00:00
500 lines
14 KiB
CoffeeScript
Executable File
500 lines
14 KiB
CoffeeScript
Executable File
class Morris.Grid extends Morris.EventEmitter
|
|
# A generic pair of axes for line/area/bar charts.
|
|
#
|
|
# Draws grid lines and axis labels.
|
|
#
|
|
constructor: (options) ->
|
|
# find the container to draw the graph in
|
|
if typeof options.element is 'string'
|
|
@el = $ document.getElementById(options.element)
|
|
else
|
|
@el = $ options.element
|
|
if not @el? or @el.length == 0
|
|
throw new Error("Graph container element not found")
|
|
|
|
if @el.css('position') == 'static'
|
|
@el.css('position', 'relative')
|
|
|
|
@options = $.extend {}, @gridDefaults, (@defaults || {}), options
|
|
|
|
# backwards compatibility for units -> postUnits
|
|
if typeof @options.units is 'string'
|
|
@options.postUnits = options.units
|
|
|
|
# the raphael drawing instance
|
|
@raphael = new Raphael(@el[0])
|
|
|
|
# some redraw stuff
|
|
@elementWidth = null
|
|
@elementHeight = null
|
|
@dirty = false
|
|
|
|
# range selection
|
|
@selectFrom = null
|
|
|
|
# more stuff
|
|
@init() if @init
|
|
|
|
# load data
|
|
@setData @options.data
|
|
|
|
# hover
|
|
@el.bind 'mousemove', (evt) =>
|
|
offset = @el.offset()
|
|
x = evt.pageX - offset.left
|
|
if @selectFrom
|
|
left = @data[@hitTest(Math.min(x, @selectFrom))]._x
|
|
right = @data[@hitTest(Math.max(x, @selectFrom))]._x
|
|
width = right - left
|
|
@selectionRect.attr({ x: left, width: width })
|
|
else
|
|
@fire 'hovermove', x, evt.pageY - offset.top
|
|
|
|
@el.bind 'mouseleave', (evt) =>
|
|
if @selectFrom
|
|
@selectionRect.hide()
|
|
@selectFrom = null
|
|
@fire 'hoverout'
|
|
|
|
@el.bind 'touchstart touchmove touchend', (evt) =>
|
|
touch = evt.originalEvent.touches[0] or evt.originalEvent.changedTouches[0]
|
|
offset = @el.offset()
|
|
@fire 'hovermove', touch.pageX - offset.left, touch.pageY - offset.top
|
|
|
|
@el.bind 'click', (evt) =>
|
|
offset = @el.offset()
|
|
@fire 'gridclick', evt.pageX - offset.left, evt.pageY - offset.top
|
|
|
|
if @options.rangeSelect
|
|
@selectionRect = @raphael.rect(0, 0, 0, @el.innerHeight())
|
|
.attr({ fill: @options.rangeSelectColor, stroke: false })
|
|
.toBack()
|
|
.hide()
|
|
|
|
@el.bind 'mousedown', (evt) =>
|
|
offset = @el.offset()
|
|
@startRange evt.pageX - offset.left
|
|
|
|
@el.bind 'mouseup', (evt) =>
|
|
offset = @el.offset()
|
|
@endRange evt.pageX - offset.left
|
|
@fire 'hovermove', evt.pageX - offset.left, evt.pageY - offset.top
|
|
|
|
if @options.resize
|
|
$(window).bind 'resize', (evt) =>
|
|
if @timeoutId?
|
|
window.clearTimeout @timeoutId
|
|
@timeoutId = window.setTimeout @resizeHandler, 100
|
|
|
|
# Disable tap highlight on iOS.
|
|
@el.css('-webkit-tap-highlight-color', 'rgba(0,0,0,0)')
|
|
|
|
@postInit() if @postInit
|
|
|
|
# Default options
|
|
#
|
|
gridDefaults:
|
|
dateFormat: null
|
|
axes: true
|
|
grid: true
|
|
gridLineColor: '#aaa'
|
|
gridStrokeWidth: 0.5
|
|
gridTextColor: '#888'
|
|
gridTextSize: 12
|
|
gridTextFamily: 'sans-serif'
|
|
gridTextWeight: 'normal'
|
|
hideHover: false
|
|
yLabelFormat: null
|
|
xLabelAngle: 0
|
|
numLines: 5
|
|
padding: 25
|
|
parseTime: true
|
|
postUnits: ''
|
|
preUnits: ''
|
|
ymax: 'auto'
|
|
ymin: 'auto 0'
|
|
goals: []
|
|
goalStrokeWidth: 1.0
|
|
goalLineColors: [
|
|
'#666633'
|
|
'#999966'
|
|
'#cc6666'
|
|
'#663333'
|
|
]
|
|
events: []
|
|
eventStrokeWidth: 1.0
|
|
eventLineColors: [
|
|
'#005a04'
|
|
'#ccffbb'
|
|
'#3a5f0b'
|
|
'#005502'
|
|
]
|
|
rangeSelect: null
|
|
rangeSelectColor: '#eef'
|
|
resize: false
|
|
|
|
# Update the data series and redraw the chart.
|
|
#
|
|
setData: (data, redraw = true) ->
|
|
@options.data = data
|
|
|
|
if !data? or data.length == 0
|
|
@data = []
|
|
@raphael.clear()
|
|
@hover.hide() if @hover?
|
|
return
|
|
|
|
ymax = if @cumulative then 0 else null
|
|
ymin = if @cumulative then 0 else null
|
|
|
|
if @options.goals.length > 0
|
|
minGoal = Math.min @options.goals...
|
|
maxGoal = Math.max @options.goals...
|
|
ymin = if ymin? then Math.min(ymin, minGoal) else minGoal
|
|
ymax = if ymax? then Math.max(ymax, maxGoal) else maxGoal
|
|
|
|
@data = for row, index in data
|
|
ret = {src: row}
|
|
|
|
ret.label = row[@options.xkey]
|
|
if @options.parseTime
|
|
ret.x = Morris.parseDate(ret.label)
|
|
if @options.dateFormat
|
|
ret.label = @options.dateFormat ret.x
|
|
else if typeof ret.label is 'number'
|
|
ret.label = new Date(ret.label).toString()
|
|
else
|
|
ret.x = index
|
|
if @options.xLabelFormat
|
|
ret.label = @options.xLabelFormat ret
|
|
total = 0
|
|
ret.y = for ykey, idx in @options.ykeys
|
|
yval = row[ykey]
|
|
yval = parseFloat(yval) if typeof yval is 'string'
|
|
yval = null if yval? and typeof yval isnt 'number'
|
|
if yval?
|
|
if @cumulative
|
|
total += yval
|
|
else
|
|
if ymax?
|
|
ymax = Math.max(yval, ymax)
|
|
ymin = Math.min(yval, ymin)
|
|
else
|
|
ymax = ymin = yval
|
|
if @cumulative and total?
|
|
ymax = Math.max(total, ymax)
|
|
ymin = Math.min(total, ymin)
|
|
yval
|
|
ret
|
|
|
|
if @options.parseTime
|
|
@data = @data.sort (a, b) -> (a.x > b.x) - (b.x > a.x)
|
|
|
|
# calculate horizontal range of the graph
|
|
@xmin = @data[0].x
|
|
@xmax = @data[@data.length - 1].x
|
|
|
|
@events = []
|
|
if @options.events.length > 0
|
|
if @options.parseTime
|
|
@events = (Morris.parseDate(e) for e in @options.events)
|
|
else
|
|
@events = @options.events
|
|
@xmax = Math.max(@xmax, Math.max(@events...))
|
|
@xmin = Math.min(@xmin, Math.min(@events...))
|
|
|
|
if @xmin is @xmax
|
|
@xmin -= 1
|
|
@xmax += 1
|
|
|
|
@ymin = @yboundary('min', ymin)
|
|
@ymax = @yboundary('max', ymax)
|
|
|
|
if @ymin is @ymax
|
|
@ymin -= 1 if ymin
|
|
@ymax += 1
|
|
|
|
if @options.axes in [true, 'both', 'y'] or @options.grid is true
|
|
if (@options.ymax == @gridDefaults.ymax and
|
|
@options.ymin == @gridDefaults.ymin)
|
|
# calculate 'magic' grid placement
|
|
@grid = @autoGridLines(@ymin, @ymax, @options.numLines)
|
|
@ymin = Math.min(@ymin, @grid[0])
|
|
@ymax = Math.max(@ymax, @grid[@grid.length - 1])
|
|
else
|
|
step = (@ymax - @ymin) / (@options.numLines - 1)
|
|
@grid = (y for y in [@ymin..@ymax] by step)
|
|
|
|
@dirty = true
|
|
@redraw() if redraw
|
|
|
|
yboundary: (boundaryType, currentValue) ->
|
|
boundaryOption = @options["y#{boundaryType}"]
|
|
if typeof boundaryOption is 'string'
|
|
if boundaryOption[0..3] is 'auto'
|
|
if boundaryOption.length > 5
|
|
suggestedValue = parseInt(boundaryOption[5..], 10)
|
|
return suggestedValue unless currentValue?
|
|
Math[boundaryType](currentValue, suggestedValue)
|
|
else
|
|
if currentValue? then currentValue else 0
|
|
else
|
|
parseInt(boundaryOption, 10)
|
|
else
|
|
boundaryOption
|
|
|
|
autoGridLines: (ymin, ymax, nlines) ->
|
|
span = ymax - ymin
|
|
ymag = Math.floor(Math.log(span) / Math.log(10))
|
|
unit = Math.pow(10, ymag)
|
|
|
|
# calculate initial grid min and max values
|
|
gmin = Math.floor(ymin / unit) * unit
|
|
gmax = Math.ceil(ymax / unit) * unit
|
|
step = (gmax - gmin) / (nlines - 1)
|
|
if unit == 1 and step > 1 and Math.ceil(step) != step
|
|
step = Math.ceil(step)
|
|
gmax = gmin + step * (nlines - 1)
|
|
|
|
# ensure zero is plotted where the range includes zero
|
|
if gmin < 0 and gmax > 0
|
|
gmin = Math.floor(ymin / step) * step
|
|
gmax = Math.ceil(ymax / step) * step
|
|
|
|
# special case for decimal numbers
|
|
if step < 1
|
|
smag = Math.floor(Math.log(step) / Math.log(10))
|
|
grid = for y in [gmin..gmax] by step
|
|
parseFloat(y.toFixed(1 - smag))
|
|
else
|
|
grid = (y for y in [gmin..gmax] by step)
|
|
grid
|
|
|
|
_calc: ->
|
|
w = @el.width()
|
|
h = @el.height()
|
|
|
|
if @elementWidth != w or @elementHeight != h or @dirty
|
|
@elementWidth = w
|
|
@elementHeight = h
|
|
@dirty = false
|
|
# recalculate grid dimensions
|
|
@left = @options.padding
|
|
@right = @elementWidth - @options.padding
|
|
@top = @options.padding
|
|
@bottom = @elementHeight - @options.padding
|
|
if @options.axes in [true, 'both', 'y']
|
|
yLabelWidths = for gridLine in @grid
|
|
@measureText(@yAxisFormat(gridLine)).width
|
|
@left += Math.max(yLabelWidths...)
|
|
if @options.axes in [true, 'both', 'x']
|
|
bottomOffsets = for i in [0...@data.length]
|
|
@measureText(@data[i].text, -@options.xLabelAngle).height
|
|
@bottom -= Math.max(bottomOffsets...)
|
|
@width = Math.max(1, @right - @left)
|
|
@height = Math.max(1, @bottom - @top)
|
|
@dx = @width / (@xmax - @xmin)
|
|
@dy = @height / (@ymax - @ymin)
|
|
@calc() if @calc
|
|
|
|
# Quick translation helpers
|
|
#
|
|
transY: (y) -> @bottom - (y - @ymin) * @dy
|
|
transX: (x) ->
|
|
if @data.length == 1
|
|
(@left + @right) / 2
|
|
else
|
|
@left + (x - @xmin) * @dx
|
|
|
|
# Draw it!
|
|
#
|
|
# If you need to re-size your charts, call this method after changing the
|
|
# size of the container element.
|
|
redraw: ->
|
|
@raphael.clear()
|
|
@_calc()
|
|
@drawGrid()
|
|
@drawGoals()
|
|
@drawEvents()
|
|
@draw() if @draw
|
|
|
|
# @private
|
|
#
|
|
measureText: (text, angle = 0) ->
|
|
tt = @raphael.text(100, 100, text)
|
|
.attr('font-size', @options.gridTextSize)
|
|
.attr('font-family', @options.gridTextFamily)
|
|
.attr('font-weight', @options.gridTextWeight)
|
|
.rotate(angle)
|
|
ret = tt.getBBox()
|
|
tt.remove()
|
|
ret
|
|
|
|
# @private
|
|
#
|
|
yAxisFormat: (label) -> @yLabelFormat(label)
|
|
|
|
# @private
|
|
#
|
|
yLabelFormat: (label) ->
|
|
if typeof @options.yLabelFormat is 'function'
|
|
@options.yLabelFormat(label)
|
|
else
|
|
"#{@options.preUnits}#{Morris.commas(label)}#{@options.postUnits}"
|
|
|
|
# draw y axis labels, horizontal lines
|
|
#
|
|
drawGrid: ->
|
|
return if @options.grid is false and @options.axes not in [true, 'both', 'y']
|
|
for lineY in @grid
|
|
y = @transY(lineY)
|
|
if @options.axes in [true, 'both', 'y']
|
|
@drawYAxisLabel(@left - @options.padding / 2, y, @yAxisFormat(lineY))
|
|
if @options.grid
|
|
@drawGridLine("M#{@left},#{y}H#{@left + @width}")
|
|
|
|
# draw goals horizontal lines
|
|
#
|
|
drawGoals: ->
|
|
for goal, i in @options.goals
|
|
color = @options.goalLineColors[i % @options.goalLineColors.length]
|
|
@drawGoal(goal, color)
|
|
|
|
# draw events vertical lines
|
|
drawEvents: ->
|
|
for event, i in @events
|
|
color = @options.eventLineColors[i % @options.eventLineColors.length]
|
|
@drawEvent(event, color)
|
|
|
|
drawGoal: (goal, color) ->
|
|
@raphael.path("M#{@left},#{@transY(goal)}H#{@right}")
|
|
.attr('stroke', color)
|
|
.attr('stroke-width', @options.goalStrokeWidth)
|
|
|
|
drawEvent: (event, color) ->
|
|
@raphael.path("M#{@transX(event)},#{@bottom}V#{@top}")
|
|
.attr('stroke', color)
|
|
.attr('stroke-width', @options.eventStrokeWidth)
|
|
|
|
drawYAxisLabel: (xPos, yPos, text) ->
|
|
@raphael.text(xPos, yPos, text)
|
|
.attr('font-size', @options.gridTextSize)
|
|
.attr('font-family', @options.gridTextFamily)
|
|
.attr('font-weight', @options.gridTextWeight)
|
|
.attr('fill', @options.gridTextColor)
|
|
.attr('text-anchor', 'end')
|
|
|
|
drawGridLine: (path) ->
|
|
@raphael.path(path)
|
|
.attr('stroke', @options.gridLineColor)
|
|
.attr('stroke-width', @options.gridStrokeWidth)
|
|
|
|
# Range selection
|
|
#
|
|
startRange: (x) ->
|
|
@hover.hide()
|
|
@selectFrom = x
|
|
@selectionRect.attr({ x: x, width: 0 }).show()
|
|
|
|
endRange: (x) ->
|
|
if @selectFrom
|
|
start = Math.min(@selectFrom, x)
|
|
end = Math.max(@selectFrom, x)
|
|
@options.rangeSelect.call @el,
|
|
start: @data[@hitTest(start)].x
|
|
end: @data[@hitTest(end)].x
|
|
@selectFrom = null
|
|
|
|
resizeHandler: =>
|
|
@timeoutId = null
|
|
@raphael.setSize @el.width(), @el.height()
|
|
@redraw()
|
|
|
|
# Parse a date into a javascript timestamp
|
|
#
|
|
#
|
|
Morris.parseDate = (date) ->
|
|
if typeof date is 'number'
|
|
return date
|
|
m = date.match /^(\d+) Q(\d)$/
|
|
n = date.match /^(\d+)-(\d+)$/
|
|
o = date.match /^(\d+)-(\d+)-(\d+)$/
|
|
p = date.match /^(\d+) W(\d+)$/
|
|
q = date.match /^(\d+)-(\d+)-(\d+)[ T](\d+):(\d+)(Z|([+-])(\d\d):?(\d\d))?$/
|
|
r = date.match /^(\d+)-(\d+)-(\d+)[ T](\d+):(\d+):(\d+(\.\d+)?)(Z|([+-])(\d\d):?(\d\d))?$/
|
|
if m
|
|
new Date(
|
|
parseInt(m[1], 10),
|
|
parseInt(m[2], 10) * 3 - 1,
|
|
1).getTime()
|
|
else if n
|
|
new Date(
|
|
parseInt(n[1], 10),
|
|
parseInt(n[2], 10) - 1,
|
|
1).getTime()
|
|
else if o
|
|
new Date(
|
|
parseInt(o[1], 10),
|
|
parseInt(o[2], 10) - 1,
|
|
parseInt(o[3], 10)).getTime()
|
|
else if p
|
|
# calculate number of weeks in year given
|
|
ret = new Date(parseInt(p[1], 10), 0, 1);
|
|
# first thursday in year (ISO 8601 standard)
|
|
if ret.getDay() isnt 4
|
|
ret.setMonth(0, 1 + ((4 - ret.getDay()) + 7) % 7);
|
|
# add weeks
|
|
ret.getTime() + parseInt(p[2], 10) * 604800000
|
|
else if q
|
|
if not q[6]
|
|
# no timezone info, use local
|
|
new Date(
|
|
parseInt(q[1], 10),
|
|
parseInt(q[2], 10) - 1,
|
|
parseInt(q[3], 10),
|
|
parseInt(q[4], 10),
|
|
parseInt(q[5], 10)).getTime()
|
|
else
|
|
# timezone info supplied, use UTC
|
|
offsetmins = 0
|
|
if q[6] != 'Z'
|
|
offsetmins = parseInt(q[8], 10) * 60 + parseInt(q[9], 10)
|
|
offsetmins = 0 - offsetmins if q[7] == '+'
|
|
Date.UTC(
|
|
parseInt(q[1], 10),
|
|
parseInt(q[2], 10) - 1,
|
|
parseInt(q[3], 10),
|
|
parseInt(q[4], 10),
|
|
parseInt(q[5], 10) + offsetmins)
|
|
else if r
|
|
secs = parseFloat(r[6])
|
|
isecs = Math.floor(secs)
|
|
msecs = Math.round((secs - isecs) * 1000)
|
|
if not r[8]
|
|
# no timezone info, use local
|
|
new Date(
|
|
parseInt(r[1], 10),
|
|
parseInt(r[2], 10) - 1,
|
|
parseInt(r[3], 10),
|
|
parseInt(r[4], 10),
|
|
parseInt(r[5], 10),
|
|
isecs,
|
|
msecs).getTime()
|
|
else
|
|
# timezone info supplied, use UTC
|
|
offsetmins = 0
|
|
if r[8] != 'Z'
|
|
offsetmins = parseInt(r[10], 10) * 60 + parseInt(r[11], 10)
|
|
offsetmins = 0 - offsetmins if r[9] == '+'
|
|
Date.UTC(
|
|
parseInt(r[1], 10),
|
|
parseInt(r[2], 10) - 1,
|
|
parseInt(r[3], 10),
|
|
parseInt(r[4], 10),
|
|
parseInt(r[5], 10) + offsetmins,
|
|
isecs,
|
|
msecs)
|
|
else
|
|
new Date(parseInt(date, 10), 0, 1).getTime()
|
|
|