@quartic/bokehjs/src/coffee/models/ranges/range1d.coffee

Interactive, novel data visualization

import {Range} from "./range"
import * as p from "core/properties"

export class Range1d extends Range
  type: 'Range1d'

  @define {
      start:  [ p.Number, 0 ]
      end:    [ p.Number, 1 ]
      bounds: [ p.Any       ] # TODO (bev)
      min_interval: [ p.Any ]
      max_interval: [ p.Any ]
    }

  _set_auto_bounds: () ->
    if @bounds == 'auto'
      min = Math.min(@_initial_start, @_initial_end)
      max = Math.max(@_initial_start, @_initial_end)
      @setv({bounds: [min, max]}, {silent: true})

  constructor: () ->
    # new Range1d({start: start, end: end}) or Range1d(start, end)
    if this instanceof Range1d
      return super(arguments...)
    else
      [start, end] = arguments
      return new Range1d({start: start, end: end})

  initialize: (attrs, options) ->
    super(attrs, options)

    @_initial_start = @start
    @_initial_end = @end

    @_set_auto_bounds()

  @getters {
    min: () -> Math.min(@start, @end)
    max: () -> Math.max(@start, @end)
  }

  reset: () ->
    @_set_auto_bounds()
    if @start != @_initial_start or @end != @_initial_end
      @setv({start: @_initial_start, end: @_initial_end})
    else
      @trigger('change')