WebPortal_TongZhou/02.UI/style/bootstrap/js/jquery.peity.js

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// Peity jQuery plugin version 0.6.0
// (c) 2011 Ben Pickles
//
// http://benpickles.github.com/peity/
//
// Released under MIT license.
(function($, document) {
  var peity = $.fn.peity = function(type, options) {
    if (document.createElement("canvas").getContext) {
      this.each(function() {
        $(this).change(function() {
          var opts = $.extend({}, options)
          var self = this

          $.each(opts, function(name, value) {
            if ($.isFunction(value)) opts[name] = value.call(self)
          })

          var value = $(this).html();
          peity.graphers[type].call(this, $.extend({}, peity.defaults[type], opts));
          $(this).trigger("chart:changed", value);
        }).trigger("change");
      });
    }

    return this;
  };

  peity.graphers = {};
  peity.defaults = {};

  peity.add = function(type, defaults, grapher){
    peity.graphers[type] = grapher;
    peity.defaults[type] = defaults;
  };

  var devicePixelRatio = window.devicePixelRatio || 1

  function createCanvas(width, height) {
    var canvas = document.createElement("canvas")
    canvas.setAttribute("width", width * devicePixelRatio)
    canvas.setAttribute("height", height * devicePixelRatio)

    if (devicePixelRatio != 1) {
      var style = "width:" + width + "px;height:" + height + "px"
      canvas.setAttribute("style", style)
    }

    return canvas
  }

  peity.add(
    'pie',
    {
      colours: ['#FFF4DD', '#FF9900'],
      delimeter: '/',
      diameter: 16
    },
    function(opts) {
      var $this = $(this)