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crowbar_framework/vendor/assets/javascripts/jquery/sparkline.js

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/**
 *
 * jquery.sparkline.js
 *
 * v2.1.2
 * (c) Splunk, Inc
 * Contact: Gareth Watts (gareth@splunk.com)
 * http://omnipotent.net/jquery.sparkline/
 *
 * Generates inline sparkline charts from data supplied either to the method
 * or inline in HTML
 *
 * Compatible with Internet Explorer 6.0+ and modern browsers equipped with the canvas tag
 * (Firefox 2.0+, Safari, Opera, etc)
 *
 * License: New BSD License
 *
 * Copyright (c) 2012, Splunk Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *     * Neither the name of Splunk Inc nor the names of its contributors may
 *       be used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * Usage:
 *  $(selector).sparkline(values, options)
 *
 * If values is undefined or set to 'html' then the data values are read from the specified tag:
 *   <p>Sparkline: <span class="sparkline">1,4,6,6,8,5,3,5</span></p>
 *   $('.sparkline').sparkline();
 * There must be no spaces in the enclosed data set
 *
 * Otherwise values must be an array of numbers or null values
 *    <p>Sparkline: <span id="sparkline1">This text replaced if the browser is compatible</span></p>
 *    $('#sparkline1').sparkline([1,4,6,6,8,5,3,5])
 *    $('#sparkline2').sparkline([1,4,6,null,null,5,3,5])
 *
 * Values can also be specified in an HTML comment, or as a values attribute:
 *    <p>Sparkline: <span class="sparkline"><!--1,4,6,6,8,5,3,5 --></span></p>
 *    <p>Sparkline: <span class="sparkline" values="1,4,6,6,8,5,3,5"></span></p>
 *    $('.sparkline').sparkline();
 *
 * For line charts, x values can also be specified:
 *   <p>Sparkline: <span class="sparkline">1:1,2.7:4,3.4:6,5:6,6:8,8.7:5,9:3,10:5</span></p>
 *    $('#sparkline1').sparkline([ [1,1], [2.7,4], [3.4,6], [5,6], [6,8], [8.7,5], [9,3], [10,5] ])
 *
 * By default, options should be passed in as teh second argument to the sparkline function:
 *   $('.sparkline').sparkline([1,2,3,4], {type: 'bar'})
 *
 * Options can also be set by passing them on the tag itself.  This feature is disabled by default though
 * as there's a slight performance overhead:
 *   $('.sparkline').sparkline([1,2,3,4], {enableTagOptions: true})
 *   <p>Sparkline: <span class="sparkline" sparkType="bar" sparkBarColor="red">loading</span></p>
 * Prefix all options supplied as tag attribute with "spark" (configurable by setting tagOptionPrefix)
 *
 * Supported options:
 *   lineColor - Color of the line used for the chart
 *   fillColor - Color used to fill in the chart - Set to '' or false for a transparent chart
 *   width - Width of the chart - Defaults to 3 times the number of values in pixels
 *   height - Height of the chart - Defaults to the height of the containing element
 *   chartRangeMin - Specify the minimum value to use for the Y range of the chart - Defaults to the minimum value supplied
 *   chartRangeMax - Specify the maximum value to use for the Y range of the chart - Defaults to the maximum value supplied
 *   chartRangeClip - Clip out of range values to the max/min specified by chartRangeMin and chartRangeMax
 *   chartRangeMinX - Specify the minimum value to use for the X range of the chart - Defaults to the minimum value supplied
 *   chartRangeMaxX - Specify the maximum value to use for the X range of the chart - Defaults to the maximum value supplied
 *   composite - If true then don't erase any existing chart attached to the tag, but draw
 *           another chart over the top - Note that width and height are ignored if an
 *           existing chart is detected.
 *   tagValuesAttribute - Name of tag attribute to check for data values - Defaults to 'values'
 *   enableTagOptions - Whether to check tags for sparkline options
 *   tagOptionPrefix - Prefix used for options supplied as tag attributes - Defaults to 'spark'
 *   disableHiddenCheck - If set to true, then the plugin will assume that charts will never be drawn into a
 *           hidden dom element, avoding a browser reflow
 *   disableInteraction - If set to true then all mouseover/click interaction behaviour will be disabled,
 *       making the plugin perform much like it did in 1.x
 *   disableTooltips - If set to true then tooltips will be disabled - Defaults to false (tooltips enabled)
 *   disableHighlight - If set to true then highlighting of selected chart elements on mouseover will be disabled
 *       defaults to false (highlights enabled)
 *   highlightLighten - Factor to lighten/darken highlighted chart values by - Defaults to 1.4 for a 40% increase
 *   tooltipContainer - Specify which DOM element the tooltip should be rendered into - defaults to document.body
 *   tooltipClassname - Optional CSS classname to apply to tooltips - If not specified then a default style will be applied
 *   tooltipOffsetX - How many pixels away from the mouse pointer to render the tooltip on the X axis
 *   tooltipOffsetY - How many pixels away from the mouse pointer to render the tooltip on the r axis
 *   tooltipFormatter  - Optional callback that allows you to override the HTML displayed in the tooltip
 *       callback is given arguments of (sparkline, options, fields)
 *   tooltipChartTitle - If specified then the tooltip uses the string specified by this setting as a title
 *   tooltipFormat - A format string or SPFormat object  (or an array thereof for multiple entries)
 *       to control the format of the tooltip
 *   tooltipPrefix - A string to prepend to each field displayed in a tooltip
 *   tooltipSuffix - A string to append to each field displayed in a tooltip
 *   tooltipSkipNull - If true then null values will not have a tooltip displayed (defaults to true)
 *   tooltipValueLookups - An object or range map to map field values to tooltip strings
 *       (eg. to map -1 to "Lost", 0 to "Draw", and 1 to "Win")
 *   numberFormatter - Optional callback for formatting numbers in tooltips
 *   numberDigitGroupSep - Character to use for group separator in numbers "1,234" - Defaults to ","
 *   numberDecimalMark - Character to use for the decimal point when formatting numbers - Defaults to "."
 *   numberDigitGroupCount - Number of digits between group separator - Defaults to 3
 *
 * There are 7 types of sparkline, selected by supplying a "type" option of 'line' (default),
 * 'bar', 'tristate', 'bullet', 'discrete', 'pie' or 'box'
 *    line - Line chart.  Options:
 *       spotColor - Set to '' to not end each line in a circular spot
 *       minSpotColor - If set, color of spot at minimum value
 *       maxSpotColor - If set, color of spot at maximum value
 *       spotRadius - Radius in pixels
 *       lineWidth - Width of line in pixels
 *       normalRangeMin
 *       normalRangeMax - If set draws a filled horizontal bar between these two values marking the "normal"
 *                      or expected range of values
 *       normalRangeColor - Color to use for the above bar
 *       drawNormalOnTop - Draw the normal range above the chart fill color if true
 *       defaultPixelsPerValue - Defaults to 3 pixels of width for each value in the chart
 *       highlightSpotColor - The color to use for drawing a highlight spot on mouseover - Set to null to disable
 *       highlightLineColor - The color to use for drawing a highlight line on mouseover - Set to null to disable
 *       valueSpots - Specify which points to draw spots on, and in which color.  Accepts a range map
 *
 *   bar - Bar chart.  Options:
 *       barColor - Color of bars for postive values
 *       negBarColor - Color of bars for negative values
 *       zeroColor - Color of bars with zero values
 *       nullColor - Color of bars with null values - Defaults to omitting the bar entirely
 *       barWidth - Width of bars in pixels
 *       colorMap - Optional mappnig of values to colors to override the *BarColor values above
 *                  can be an Array of values to control the color of individual bars or a range map
 *                  to specify colors for individual ranges of values
 *       barSpacing - Gap between bars in pixels
 *       zeroAxis - Centers the y-axis around zero if true
 *
 *   tristate - Charts values of win (>0), lose (<0) or draw (=0)
 *       posBarColor - Color of win values
 *       negBarColor - Color of lose values
 *       zeroBarColor - Color of draw values
 *       barWidth - Width of bars in pixels
 *       barSpacing - Gap between bars in pixels
 *       colorMap - Optional mappnig of values to colors to override the *BarColor values above
 *                  can be an Array of values to control the color of individual bars or a range map
 *                  to specify colors for individual ranges of values
 *
 *   discrete - Options:
 *       lineHeight - Height of each line in pixels - Defaults to 30% of the graph height
 *       thesholdValue - Values less than this value will be drawn using thresholdColor instead of lineColor
 *       thresholdColor
 *
 *   bullet - Values for bullet graphs msut be in the order: target, performance, range1, range2, range3, ...
 *       options:
 *       targetColor - The color of the vertical target marker
 *       targetWidth - The width of the target marker in pixels
 *       performanceColor - The color of the performance measure horizontal bar
 *       rangeColors - Colors to use for each qualitative range background color
 *
 *   pie - Pie chart. Options:
 *       sliceColors - An array of colors to use for pie slices
 *       offset - Angle in degrees to offset the first slice - Try -90 or +90
 *       borderWidth - Width of border to draw around the pie chart, in pixels - Defaults to 0 (no border)
 *       borderColor - Color to use for the pie chart border - Defaults to #000
 *
 *   box - Box plot. Options:
 *       raw - Set to true to supply pre-computed plot points as values
 *             values should be: low_outlier, low_whisker, q1, median, q3, high_whisker, high_outlier
 *             When set to false you can supply any number of values and the box plot will
 *             be computed for you.  Default is false.
 *       showOutliers - Set to true (default) to display outliers as circles
 *       outlierIQR - Interquartile range used to determine outliers.  Default 1.5
 *       boxLineColor - Outline color of the box
 *       boxFillColor - Fill color for the box
 *       whiskerColor - Line color used for whiskers
 *       outlierLineColor - Outline color of outlier circles
 *       outlierFillColor - Fill color of the outlier circles
 *       spotRadius - Radius of outlier circles
 *       medianColor - Line color of the median line
 *       target - Draw a target cross hair at the supplied value (default undefined)
 *
 *
 *
 *   Examples:
 *   $('#sparkline1').sparkline(myvalues, { lineColor: '#f00', fillColor: false });
 *   $('.barsparks').sparkline('html', { type:'bar', height:'40px', barWidth:5 });
 *   $('#tristate').sparkline([1,1,-1,1,0,0,-1], { type:'tristate' }):
 *   $('#discrete').sparkline([1,3,4,5,5,3,4,5], { type:'discrete' });
 *   $('#bullet').sparkline([10,12,12,9,7], { type:'bullet' });
 *   $('#pie').sparkline([1,1,2], { type:'pie' });
 */

/*jslint regexp: true, browser: true, jquery: true, white: true, nomen: false, plusplus: false, maxerr: 500, indent: 4 */

(function(document, Math, undefined) { // performance/minified-size optimization
  (function(factory) {
    if(typeof define === 'function' && define.amd) {
      define(['jquery'], factory);
    } else if (jQuery && !jQuery.fn.sparkline) {
      factory(jQuery);
    }
  }
  (function($) {
    'use strict';

    var UNSET_OPTION = {},
      getDefaults, createClass, SPFormat, clipval, quartile, normalizeValue, normalizeValues,
      remove, isNumber, all, sum, addCSS, ensureArray, formatNumber, RangeMap,
      MouseHandler, Tooltip, barHighlightMixin,
      line, bar, tristate, discrete, bullet, pie, box, defaultStyles, initStyles,
      VShape, VCanvas_base, VCanvas_canvas, VCanvas_vml, pending, shapeCount = 0;

    /**
     * Default configuration settings
     */
    getDefaults = function () {
      return {
        // Settings common to most/all chart types
        common: {
          type: 'line',
          lineColor: '#00f',
          fillColor: '#cdf',
          defaultPixelsPerValue: 3,
          width: 'auto',
          height: 'auto',
          composite: false,
          tagValuesAttribute: 'values',
          tagOptionsPrefix: 'spark',
          enableTagOptions: false,
          enableHighlight: true,
          highlightLighten: 1.4,
          tooltipSkipNull: true,
          tooltipPrefix: '',
          tooltipSuffix: '',
          disableHiddenCheck: false,
          numberFormatter: false,
          numberDigitGroupCount: 3,
          numberDigitGroupSep: ',',
          numberDecimalMark: '.',
          disableTooltips: false,
          disableInteraction: false
        },
        // Defaults for line charts
        line: {
          spotColor: '#f80',
          highlightSpotColor: '#5f5',
          highlightLineColor: '#f22',
          spotRadius: 1.5,
          minSpotColor: '#f80',
          maxSpotColor: '#f80',
          lineWidth: 1,
          normalRangeMin: undefined,
          normalRangeMax: undefined,
          normalRangeColor: '#ccc',
          drawNormalOnTop: false,
          chartRangeMin: undefined,
          chartRangeMax: undefined,
          chartRangeMinX: undefined,
          chartRangeMaxX: undefined,
          tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{y}}{{suffix}}')
        },
        // Defaults for bar charts
        bar: {
          barColor: '#3366cc',
          negBarColor: '#f44',
          stackedBarColor: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
            '#dd4477', '#0099c6', '#990099'],
          zeroColor: undefined,
          nullColor: undefined,
          zeroAxis: true,
          barWidth: 4,
          barSpacing: 1,
          chartRangeMax: undefined,
          chartRangeMin: undefined,
          chartRangeClip: false,
          colorMap: undefined,
          tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{value}}{{suffix}}')
        },
        // Defaults for tristate charts
        tristate: {
          barWidth: 4,
          barSpacing: 1,
          posBarColor: '#6f6',
          negBarColor: '#f44',
          zeroBarColor: '#999',
          colorMap: {},
          tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value:map}}'),
          tooltipValueLookups: { map: { '-1': 'Loss', '0': 'Draw', '1': 'Win' } }
        },
        // Defaults for discrete charts
        discrete: {
          lineHeight: 'auto',
          thresholdColor: undefined,
          thresholdValue: 0,
          chartRangeMax: undefined,
          chartRangeMin: undefined,
          chartRangeClip: false,
          tooltipFormat: new SPFormat('{{prefix}}{{value}}{{suffix}}')
        },
        // Defaults for bullet charts
        bullet: {
          targetColor: '#f33',
          targetWidth: 3, // width of the target bar in pixels
          performanceColor: '#33f',
          rangeColors: ['#d3dafe', '#a8b6ff', '#7f94ff'],
          base: undefined, // set this to a number to change the base start number
          tooltipFormat: new SPFormat('{{fieldkey:fields}} - {{value}}'),
          tooltipValueLookups: { fields: {r: 'Range', p: 'Performance', t: 'Target'} }
        },
        // Defaults for pie charts
        pie: {
          offset: 0,
          sliceColors: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
            '#dd4477', '#0099c6', '#990099'],
          borderWidth: 0,
          borderColor: '#000',
          tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value}} ({{percent.1}}%)')
        },
        // Defaults for box plots
        box: {
          raw: false,
          boxLineColor: '#000',
          boxFillColor: '#cdf',
          whiskerColor: '#000',
          outlierLineColor: '#333',
          outlierFillColor: '#fff',
          medianColor: '#f00',
          showOutliers: true,
          outlierIQR: 1.5,
          spotRadius: 1.5,
          target: undefined,
          targetColor: '#4a2',
          chartRangeMax: undefined,
          chartRangeMin: undefined,
          tooltipFormat: new SPFormat('{{field:fields}}: {{value}}'),
          tooltipFormatFieldlistKey: 'field',
          tooltipValueLookups: { fields: { lq: 'Lower Quartile', med: 'Median',
            uq: 'Upper Quartile', lo: 'Left Outlier', ro: 'Right Outlier',
            lw: 'Left Whisker', rw: 'Right Whisker'} }
        }
      };
    };

    // You can have tooltips use a css class other than jqstooltip by specifying tooltipClassname
    defaultStyles = '.jqstooltip { ' +
      'position: absolute;' +
      'left: 0px;' +
      'top: 0px;' +
      'visibility: hidden;' +
      'background: rgb(0, 0, 0) transparent;' +
      'background-color: rgba(0,0,0,0.6);' +
      'filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);' +
      '-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000)";' +
      'color: white;' +
      'font: 10px arial, san serif;' +
      'text-align: left;' +
      'white-space: nowrap;' +
      'padding: 5px;' +
      'border: 1px solid white;' +
      'z-index: 10000;' +
      '}' +
      '.jqsfield { ' +
      'color: white;' +
      'font: 10px arial, san serif;' +
      'text-align: left;' +
      '}';

    /**
     * Utilities
     */

    createClass = function (/* [baseclass, [mixin, ...]], definition */) {
      var Class, args;
      Class = function () {
        this.init.apply(this, arguments);
      };
      if (arguments.length > 1) {
        if (arguments[0]) {
          Class.prototype = $.extend(new arguments[0](), arguments[arguments.length - 1]);
          Class._super = arguments[0].prototype;
        } else {
          Class.prototype = arguments[arguments.length - 1];
        }
        if (arguments.length > 2) {
          args = Array.prototype.slice.call(arguments, 1, -1);
          args.unshift(Class.prototype);
          $.extend.apply($, args);
        }
      } else {
        Class.prototype = arguments[0];
      }
      Class.prototype.cls = Class;
      return Class;
    };

    /**
     * Wraps a format string for tooltips
     * {{x}}
     * {{x.2}
     * {{x:months}}
     */
    $.SPFormatClass = SPFormat = createClass({
      fre: /\{\{([\w.]+?)(:(.+?))?\}\}/g,
      precre: /(\w+)\.(\d+)/,

      init: function (format, fclass) {
        this.format = format;
        this.fclass = fclass;
      },

      render: function (fieldset, lookups, options) {
        var self = this,
          fields = fieldset,
          match, token, lookupkey, fieldvalue, prec;
        return this.format.replace(this.fre, function () {
          var lookup;
          token = arguments[1];
          lookupkey = arguments[3];
          match = self.precre.exec(token);
          if (match) {
            prec = match[2];
            token = match[1];
          } else {
            prec = false;
          }
          fieldvalue = fields[token];
          if (fieldvalue === undefined) {
            return '';
          }
          if (lookupkey && lookups && lookups[lookupkey]) {
            lookup = lookups[lookupkey];
            if (lookup.get) { // RangeMap
              return lookups[lookupkey].get(fieldvalue) || fieldvalue;
            } else {
              return lookups[lookupkey][fieldvalue] || fieldvalue;
            }
          }
          if (isNumber(fieldvalue)) {
            if (options.get('numberFormatter')) {
              fieldvalue = options.get('numberFormatter')(fieldvalue);
            } else {
              fieldvalue = formatNumber(fieldvalue, prec,
                options.get('numberDigitGroupCount'),
                options.get('numberDigitGroupSep'),
                options.get('numberDecimalMark'));
            }
          }
          return fieldvalue;
        });
      }
    });

    // convience method to avoid needing the new operator
    $.spformat = function(format, fclass) {
      return new SPFormat(format, fclass);
    };

    clipval = function (val, min, max) {
      if (val < min) {
        return min;
      }
      if (val > max) {
        return max;
      }
      return val;
    };

    quartile = function (values, q) {
      var vl;
      if (q === 2) {
        vl = Math.floor(values.length / 2);
        return values.length % 2 ? values[vl] : (values[vl-1] + values[vl]) / 2;
      } else {
        if (values.length % 2 ) { // odd
          vl = (values.length * q + q) / 4;
          return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 : values[vl-1];
        } else { //even
          vl = (values.length * q + 2) / 4;
          return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 :  values[vl-1];

        }
      }
    };

    normalizeValue = function (val) {
      var nf;
      switch (val) {
        case 'undefined':
          val = undefined;
          break;
        case 'null':
          val = null;
          break;
        case 'true':
          val = true;
          break;
        case 'false':
          val = false;
          break;
        default:
          nf = parseFloat(val);
          if (val == nf) {
            val = nf;
          }
      }
      return val;
    };

    normalizeValues = function (vals) {
      var i, result = [];
      for (i = vals.length; i--;) {
        result[i] = normalizeValue(vals[i]);
      }
      return result;
    };

    remove = function (vals, filter) {
      var i, vl, result = [];
      for (i = 0, vl = vals.length; i < vl; i++) {
        if (vals[i] !== filter) {
          result.push(vals[i]);
        }
      }
      return result;
    };

    isNumber = function (num) {
      return !isNaN(parseFloat(num)) && isFinite(num);
    };

    formatNumber = function (num, prec, groupsize, groupsep, decsep) {
      var p, i;
      num = (prec === false ? parseFloat(num).toString() : num.toFixed(prec)).split('');
      p = (p = $.inArray('.', num)) < 0 ? num.length : p;
      if (p < num.length) {
        num[p] = decsep;
      }
      for (i = p - groupsize; i > 0; i -= groupsize) {
        num.splice(i, 0, groupsep);
      }
      return num.join('');
    };

    // determine if all values of an array match a value
    // returns true if the array is empty
    all = function (val, arr, ignoreNull) {
      var i;
      for (i = arr.length; i--; ) {
        if (ignoreNull && arr[i] === null) continue;
        if (arr[i] !== val) {
          return false;
        }
      }
      return true;
    };

    // sums the numeric values in an array, ignoring other values
    sum = function (vals) {
      var total = 0, i;
      for (i = vals.length; i--;) {
        total += typeof vals[i] === 'number' ? vals[i] : 0;
      }
      return total;
    };

    ensureArray = function (val) {
      return $.isArray(val) ? val : [val];
    };

    // http://paulirish.com/2008/bookmarklet-inject-new-css-rules/
    addCSS = function(css) {
      var tag;
      //if ('\v' == 'v') /* ie only */ {
      if (document.createStyleSheet) {
        document.createStyleSheet().cssText = css;
      } else {
        tag = document.createElement('style');
        tag.type = 'text/css';
        document.getElementsByTagName('head')[0].appendChild(tag);
        tag[(typeof document.body.style.WebkitAppearance == 'string') /* webkit only */ ? 'innerText' : 'innerHTML'] = css;
      }
    };

    // Provide a cross-browser interface to a few simple drawing primitives
    $.fn.simpledraw = function (width, height, useExisting, interact) {
      var target, mhandler;
      if (useExisting && (target = this.data('_jqs_vcanvas'))) {
        return target;
      }

      if ($.fn.sparkline.canvas === false) {
        // We've already determined that neither Canvas nor VML are available
        return false;

      } else if ($.fn.sparkline.canvas === undefined) {
        // No function defined yet -- need to see if we support Canvas or VML
        var el = document.createElement('canvas');
        if (!!(el.getContext && el.getContext('2d'))) {
          // Canvas is available
          $.fn.sparkline.canvas = function(width, height, target, interact) {
            return new VCanvas_canvas(width, height, target, interact);
          };
        } else if (document.namespaces && !document.namespaces.v) {
          // VML is available
          document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
          $.fn.sparkline.canvas = function(width, height, target, interact) {
            return new VCanvas_vml(width, height, target);
          };
        } else {
          // Neither Canvas nor VML are available
          $.fn.sparkline.canvas = false;
          return false;
        }
      }

      if (width === undefined) {
        width = $(this).innerWidth();
      }
      if (height === undefined) {
        height = $(this).innerHeight();
      }

      target = $.fn.sparkline.canvas(width, height, this, interact);

      mhandler = $(this).data('_jqs_mhandler');
      if (mhandler) {
        mhandler.registerCanvas(target);
      }
      return target;
    };

    $.fn.cleardraw = function () {
      var target = this.data('_jqs_vcanvas');
      if (target) {
        target.reset();
      }
    };

    $.RangeMapClass = RangeMap = createClass({
      init: function (map) {
        var key, range, rangelist = [];
        for (key in map) {
          if (map.hasOwnProperty(key) && typeof key === 'string' && key.indexOf(':') > -1) {
            range = key.split(':');
            range[0] = range[0].length === 0 ? -Infinity : parseFloat(range[0]);
            range[1] = range[1].length === 0 ? Infinity : parseFloat(range[1]);
            range[2] = map[key];
            rangelist.push(range);
          }
        }
        this.map = map;
        this.rangelist = rangelist || false;
      },

      get: function (value) {
        var rangelist = this.rangelist,
          i, range, result;
        if ((result = this.map[value]) !== undefined) {
          return result;
        }
        if (rangelist) {
          for (i = rangelist.length; i--;) {
            range = rangelist[i];
            if (range[0] <= value && range[1] >= value) {
              return range[2];
            }
          }
        }
        return undefined;
      }
    });

    // Convenience function
    $.range_map = function(map) {
      return new RangeMap(map);
    };

    MouseHandler = createClass({
      init: function (el, options) {
        var $el = $(el);
        this.$el = $el;
        this.options = options;
        this.currentPageX = 0;
        this.currentPageY = 0;
        this.el = el;
        this.splist = [];
        this.tooltip = null;
        this.over = false;
        this.displayTooltips = !options.get('disableTooltips');
        this.highlightEnabled = !options.get('disableHighlight');
      },

      registerSparkline: function (sp) {
        this.splist.push(sp);
        if (this.over) {
          this.updateDisplay();
        }
      },

      registerCanvas: function (canvas) {
        var $canvas = $(canvas.canvas);
        this.canvas = canvas;
        this.$canvas = $canvas;
        $canvas.mouseenter($.proxy(this.mouseenter, this));
        $canvas.mouseleave($.proxy(this.mouseleave, this));
        $canvas.click($.proxy(this.mouseclick, this));
      },

      reset: function (removeTooltip) {
        this.splist = [];
        if (this.tooltip && removeTooltip) {
          this.tooltip.remove();
          this.tooltip = undefined;
        }
      },

      mouseclick: function (e) {
        var clickEvent = $.Event('sparklineClick');
        clickEvent.originalEvent = e;
        clickEvent.sparklines = this.splist;
        this.$el.trigger(clickEvent);
      },

      mouseenter: function (e) {
        $(document.body).unbind('mousemove.jqs');
        $(document.body).bind('mousemove.jqs', $.proxy(this.mousemove, this));
        this.over = true;
        this.currentPageX = e.pageX;
        this.currentPageY = e.pageY;
        this.currentEl = e.target;
        if (!this.tooltip && this.displayTooltips) {
          this.tooltip = new Tooltip(this.options);
          this.tooltip.updatePosition(e.pageX, e.pageY);
        }
        this.updateDisplay();
      },

      mouseleave: function () {
        $(document.body).unbind('mousemove.jqs');
        var splist = this.splist,
          spcount = splist.length,
          needsRefresh = false,
          sp, i;
        this.over = false;
        this.currentEl = null;

        if (this.tooltip) {
          this.tooltip.remove();
          this.tooltip = null;
        }

        for (i = 0; i < spcount; i++) {
          sp = splist[i];
          if (sp.clearRegionHighlight()) {
            needsRefresh = true;
          }
        }

        if (needsRefresh) {
          this.canvas.render();
        }
      },

      mousemove: function (e) {
        this.currentPageX = e.pageX;
        this.currentPageY = e.pageY;
        this.currentEl = e.target;
        if (this.tooltip) {
          this.tooltip.updatePosition(e.pageX, e.pageY);
        }
        this.updateDisplay();
      },

      updateDisplay: function () {
        var splist = this.splist,
          spcount = splist.length,
          needsRefresh = false,
          offset = this.$canvas.offset(),
          localX = this.currentPageX - offset.left,
          localY = this.currentPageY - offset.top,
          tooltiphtml, sp, i, result, changeEvent;
        if (!this.over) {
          return;
        }
        for (i = 0; i < spcount; i++) {
          sp = splist[i];
          result = sp.setRegionHighlight(this.currentEl, localX, localY);
          if (result) {
            needsRefresh = true;
          }
        }
        if (needsRefresh) {
          changeEvent = $.Event('sparklineRegionChange');
          changeEvent.sparklines = this.splist;
          this.$el.trigger(changeEvent);
          if (this.tooltip) {
            tooltiphtml = '';
            for (i = 0; i < spcount; i++) {
              sp = splist[i];
              tooltiphtml += sp.getCurrentRegionTooltip();
            }
            this.tooltip.setContent(tooltiphtml);
          }
          if (!this.disableHighlight) {
            this.canvas.render();
          }
        }
        if (result === null) {
          this.mouseleave();
        }
      }
    });


    Tooltip = createClass({
      sizeStyle: 'position: static !important;' +
        'display: block !important;' +
        'visibility: hidden !important;' +
        'float: left !important;',

      init: function (options) {
        var tooltipClassname = options.get('tooltipClassname', 'jqstooltip'),
          sizetipStyle = this.sizeStyle,
          offset;
        this.container = options.get('tooltipContainer') || document.body;
        this.tooltipOffsetX = options.get('tooltipOffsetX', 10);
        this.tooltipOffsetY = options.get('tooltipOffsetY', 12);
        // remove any previous lingering tooltip
        $('#jqssizetip').remove();
        $('#jqstooltip').remove();
        this.sizetip = $('<div/>', {
          id: 'jqssizetip',
          style: sizetipStyle,
          'class': tooltipClassname
        });
        this.tooltip = $('<div/>', {
          id: 'jqstooltip',
          'class': tooltipClassname
        }).appendTo(this.container);
        // account for the container's location
        offset = this.tooltip.offset();
        this.offsetLeft = offset.left;
        this.offsetTop = offset.top;
        this.hidden = true;
        $(window).unbind('resize.jqs scroll.jqs');
        $(window).bind('resize.jqs scroll.jqs', $.proxy(this.updateWindowDims, this));
        this.updateWindowDims();
      },

      updateWindowDims: function () {
        this.scrollTop = $(window).scrollTop();
        this.scrollLeft = $(window).scrollLeft();
        this.scrollRight = this.scrollLeft + $(window).width();
        this.updatePosition();
      },

      getSize: function (content) {
        this.sizetip.html(content).appendTo(this.container);
        this.width = this.sizetip.width() + 1;
        this.height = this.sizetip.height();
        this.sizetip.remove();
      },

      setContent: function (content) {
        if (!content) {
          this.tooltip.css('visibility', 'hidden');
          this.hidden = true;
          return;
        }
        this.getSize(content);
        this.tooltip.html(content)
          .css({
            'width': this.width,
            'height': this.height,
            'visibility': 'visible'
          });
        if (this.hidden) {
          this.hidden = false;
          this.updatePosition();
        }
      },

      updatePosition: function (x, y) {
        if (x === undefined) {
          if (this.mousex === undefined) {
            return;
          }
          x = this.mousex - this.offsetLeft;
          y = this.mousey - this.offsetTop;

        } else {
          this.mousex = x = x - this.offsetLeft;
          this.mousey = y = y - this.offsetTop;
        }
        if (!this.height || !this.width || this.hidden) {
          return;
        }

        y -= this.height + this.tooltipOffsetY;
        x += this.tooltipOffsetX;

        if (y < this.scrollTop) {
          y = this.scrollTop;
        }
        if (x < this.scrollLeft) {
          x = this.scrollLeft;
        } else if (x + this.width > this.scrollRight) {
          x = this.scrollRight - this.width;
        }

        this.tooltip.css({
          'left': x,
          'top': y
        });
      },

      remove: function () {
        this.tooltip.remove();
        this.sizetip.remove();
        this.sizetip = this.tooltip = undefined;
        $(window).unbind('resize.jqs scroll.jqs');
      }
    });

    initStyles = function() {
      addCSS(defaultStyles);
    };

    $(initStyles);

    pending = [];
    $.fn.sparkline = function (userValues, userOptions) {
      return this.each(function () {
        var options = new $.fn.sparkline.options(this, userOptions),
          $this = $(this),
          render, i;
        render = function () {
          var values, width, height, tmp, mhandler, sp, vals;
          if (userValues === 'html' || userValues === undefined) {
            vals = this.getAttribute(options.get('tagValuesAttribute'));
            if (vals === undefined || vals === null) {
              vals = $this.html();
            }
            values = vals.replace(/(^\s*<!--)|(-->\s*$)|\s+/g, '').split(',');
          } else {
            values = userValues;
          }

          width = options.get('width') === 'auto' ? values.length * options.get('defaultPixelsPerValue') : options.get('width');
          if (options.get('height') === 'auto') {
            if (!options.get('composite') || !$.data(this, '_jqs_vcanvas')) {
              // must be a better way to get the line height
              tmp = document.createElement('span');
              tmp.innerHTML = 'a';
              $this.html(tmp);
              height = $(tmp).innerHeight() || $(tmp).height();
              $(tmp).remove();
              tmp = null;
            }
          } else {
            height = options.get('height');
          }

          if (!options.get('disableInteraction')) {
            mhandler = $.data(this, '_jqs_mhandler');
            if (!mhandler) {
              mhandler = new MouseHandler(this, options);
              $.data(this, '_jqs_mhandler', mhandler);
            } else if (!options.get('composite')) {
              mhandler.reset();
            }
          } else {
            mhandler = false;
          }

          if (options.get('composite') && !$.data(this, '_jqs_vcanvas')) {
            if (!$.data(this, '_jqs_errnotify')) {
              alert('Attempted to attach a composite sparkline to an element with no existing sparkline');
              $.data(this, '_jqs_errnotify', true);
            }
            return;
          }

          sp = new $.fn.sparkline[options.get('type')](this, values, options, width, height);

          sp.render();

          if (mhandler) {
            mhandler.registerSparkline(sp);
          }
        };
        if (($(this).html() && !options.get('disableHiddenCheck') && $(this).is(':hidden')) || !$(this).parents('body').length) {
          if (!options.get('composite') && $.data(this, '_jqs_pending')) {
            // remove any existing references to the element
            for (i = pending.length; i; i--) {
              if (pending[i - 1][0] == this) {
                pending.splice(i - 1, 1);
              }
            }
          }
          pending.push([this, render]);
          $.data(this, '_jqs_pending', true);
        } else {
          render.call(this);
        }
      });
    };

    $.fn.sparkline.defaults = getDefaults();


    $.sparkline_display_visible = function () {
      var el, i, pl;
      var done = [];
      for (i = 0, pl = pending.length; i < pl; i++) {
        el = pending[i][0];
        if ($(el).is(':visible') && !$(el).parents().is(':hidden')) {
          pending[i][1].call(el);
          $.data(pending[i][0], '_jqs_pending', false);
          done.push(i);
        } else if (!$(el).closest('html').length && !$.data(el, '_jqs_pending')) {
          // element has been inserted and removed from the DOM
          // If it was not yet inserted into the dom then the .data request
          // will return true.
          // removing from the dom causes the data to be removed.
          $.data(pending[i][0], '_jqs_pending', false);
          done.push(i);
        }
      }
      for (i = done.length; i; i--) {
        pending.splice(done[i - 1], 1);
      }
    };


    /**
     * User option handler
     */
    $.fn.sparkline.options = createClass({
      init: function (tag, userOptions) {
        var extendedOptions, defaults, base, tagOptionType;
        this.userOptions = userOptions = userOptions || {};
        this.tag = tag;
        this.tagValCache = {};
        defaults = $.fn.sparkline.defaults;
        base = defaults.common;
        this.tagOptionsPrefix = userOptions.enableTagOptions && (userOptions.tagOptionsPrefix || base.tagOptionsPrefix);

        tagOptionType = this.getTagSetting('type');
        if (tagOptionType === UNSET_OPTION) {
          extendedOptions = defaults[userOptions.type || base.type];
        } else {
          extendedOptions = defaults[tagOptionType];
        }
        this.mergedOptions = $.extend({}, base, extendedOptions, userOptions);
      },


      getTagSetting: function (key) {
        var prefix = this.tagOptionsPrefix,
          val, i, pairs, keyval;
        if (prefix === false || prefix === undefined) {
          return UNSET_OPTION;
        }
        if (this.tagValCache.hasOwnProperty(key)) {
          val = this.tagValCache.key;
        } else {
          val = this.tag.getAttribute(prefix + key);
          if (val === undefined || val === null) {
            val = UNSET_OPTION;
          } else if (val.substr(0, 1) === '[') {
            val = val.substr(1, val.length - 2).split(',');
            for (i = val.length; i--;) {
              val[i] = normalizeValue(val[i].replace(/(^\s*)|(\s*$)/g, ''));
            }
          } else if (val.substr(0, 1) === '{') {
            pairs = val.substr(1, val.length - 2).split(',');
            val = {};
            for (i = pairs.length; i--;) {
              keyval = pairs[i].split(':', 2);
              val[keyval[0].replace(/(^\s*)|(\s*$)/g, '')] = normalizeValue(keyval[1].replace(/(^\s*)|(\s*$)/g, ''));
            }
          } else {
            val = normalizeValue(val);
          }
          this.tagValCache.key = val;
        }
        return val;
      },

      get: function (key, defaultval) {
        var tagOption = this.getTagSetting(key),
          result;
        if (tagOption !== UNSET_OPTION) {
          return tagOption;
        }
        return (result = this.mergedOptions[key]) === undefined ? defaultval : result;
      }
    });


    $.fn.sparkline._base = createClass({
      disabled: false,

      init: function (el, values, options, width, height) {
        this.el = el;
        this.$el = $(el);
        this.values = values;
        this.options = options;
        this.width = width;
        this.height = height;
        this.currentRegion = undefined;
      },

      /**
       * Setup the canvas
       */
      initTarget: function () {
        var interactive = !this.options.get('disableInteraction');
        if (!(this.target = this.$el.simpledraw(this.width, this.height, this.options.get('composite'), interactive))) {
          this.disabled = true;
        } else {
          this.canvasWidth = this.target.pixelWidth;
          this.canvasHeight = this.target.pixelHeight;
        }
      },

      /**
       * Actually render the chart to the canvas
       */
      render: function () {
        if (this.disabled) {
          this.el.innerHTML = '';
          return false;
        }
        return true;
      },

      /**
       * Return a region id for a given x/y co-ordinate
       */
      getRegion: function (x, y) {
      },

      /**
       * Highlight an item based on the moused-over x,y co-ordinate
       */
      setRegionHighlight: function (el, x, y) {
        var currentRegion = this.currentRegion,
          highlightEnabled = !this.options.get('disableHighlight'),
          newRegion;
        if (x > this.canvasWidth || y > this.canvasHeight || x < 0 || y < 0) {
          return null;
        }
        newRegion = this.getRegion(el, x, y);
        if (currentRegion !== newRegion) {
          if (currentRegion !== undefined && highlightEnabled) {
            this.removeHighlight();
          }
          this.currentRegion = newRegion;
          if (newRegion !== undefined && highlightEnabled) {
            this.renderHighlight();
          }
          return true;
        }
        return false;
      },

      /**
       * Reset any currently highlighted item
       */
      clearRegionHighlight: function () {
        if (this.currentRegion !== undefined) {
          this.removeHighlight();
          this.currentRegion = undefined;
          return true;
        }
        return false;
      },

      renderHighlight: function () {
        this.changeHighlight(true);
      },

      removeHighlight: function () {
        this.changeHighlight(false);
      },

      changeHighlight: function (highlight)  {},

      /**
       * Fetch the HTML to display as a tooltip
       */
      getCurrentRegionTooltip: function () {
        var options = this.options,
          header = '',
          entries = [],
          fields, formats, formatlen, fclass, text, i,
          showFields, showFieldsKey, newFields, fv,
          formatter, format, fieldlen, j;
        if (this.currentRegion === undefined) {
          return '';
        }
        fields = this.getCurrentRegionFields();
        formatter = options.get('tooltipFormatter');
        if (formatter) {
          return formatter(this, options, fields);
        }
        if (options.get('tooltipChartTitle')) {
          header += '<div class="jqs jqstitle">' + options.get('tooltipChartTitle') + '</div>\n';
        }
        formats = this.options.get('tooltipFormat');
        if (!formats) {
          return '';
        }
        if (!$.isArray(formats)) {
          formats = [formats];
        }
        if (!$.isArray(fields)) {
          fields = [fields];
        }
        showFields = this.options.get('tooltipFormatFieldlist');
        showFieldsKey = this.options.get('tooltipFormatFieldlistKey');
        if (showFields && showFieldsKey) {
          // user-selected ordering of fields
          newFields = [];
          for (i = fields.length; i--;) {
            fv = fields[i][showFieldsKey];
            if ((j = $.inArray(fv, showFields)) != -1) {
              newFields[j] = fields[i];
            }
          }
          fields = newFields;
        }
        formatlen = formats.length;
        fieldlen = fields.length;
        for (i = 0; i < formatlen; i++) {
          format = formats[i];
          if (typeof format === 'string') {
            format = new SPFormat(format);
          }
          fclass = format.fclass || 'jqsfield';
          for (j = 0; j < fieldlen; j++) {
            if (!fields[j].isNull || !options.get('tooltipSkipNull')) {
              $.extend(fields[j], {
                prefix: options.get('tooltipPrefix'),
                suffix: options.get('tooltipSuffix')
              });
              text = format.render(fields[j], options.get('tooltipValueLookups'), options);
              entries.push('<div class="' + fclass + '">' + text + '</div>');
            }
          }
        }
        if (entries.length) {
          return header + entries.join('\n');
        }
        return '';
      },

      getCurrentRegionFields: function () {},

      calcHighlightColor: function (color, options) {
        var highlightColor = options.get('highlightColor'),
          lighten = options.get('highlightLighten'),
          parse, mult, rgbnew, i;
        if (highlightColor) {
          return highlightColor;
        }
        if (lighten) {
          // extract RGB values
          parse = /^#([0-9a-f])([0-9a-f])([0-9a-f])$/i.exec(color) || /^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i.exec(color);
          if (parse) {
            rgbnew = [];
            mult = color.length === 4 ? 16 : 1;
            for (i = 0; i < 3; i++) {
              rgbnew[i] = clipval(Math.round(parseInt(parse[i + 1], 16) * mult * lighten), 0, 255);
            }
            return 'rgb(' + rgbnew.join(',') + ')';
          }

        }
        return color;
      }

    });

    barHighlightMixin = {
      changeHighlight: function (highlight) {
        var currentRegion = this.currentRegion,
          target = this.target,
          shapeids = this.regionShapes[currentRegion],
          newShapes;
        // will be null if the region value was null
        if (shapeids) {
          newShapes = this.renderRegion(currentRegion, highlight);
          if ($.isArray(newShapes) || $.isArray(shapeids)) {
            target.replaceWithShapes(shapeids, newShapes);
            this.regionShapes[currentRegion] = $.map(newShapes, function (newShape) {
              return newShape.id;
            });
          } else {
            target.replaceWithShape(shapeids, newShapes);
            this.regionShapes[currentRegion] = newShapes.id;
          }
        }
      },

      render: function () {
        var values = this.values,
          target = this.target,
          regionShapes = this.regionShapes,
          shapes, ids, i, j;

        if (!this.cls._super.render.call(this)) {
          return;
        }
        for (i = values.length; i--;) {
          shapes = this.renderRegion(i);
          if (shapes) {
            if ($.isArray(shapes)) {
              ids = [];
              for (j = shapes.length; j--;) {
                shapes[j].append();
                ids.push(shapes[j].id);
              }
              regionShapes[i] = ids;
            } else {
              shapes.append();
              regionShapes[i] = shapes.id; // store just the shapeid
            }
          } else {
            // null value
            regionShapes[i] = null;
          }
        }
        target.render();
      }
    };

    /**
     * Line charts
     */
    $.fn.sparkline.line = line = createClass($.fn.sparkline._base, {
      type: 'line',

      init: function (el, values, options, width, height) {
        line._super.init.call(this, el, values, options, width, height);
        this.vertices = [];
        this.regionMap = [];
        this.xvalues = [];
        this.yvalues = [];
        this.yminmax = [];
        this.hightlightSpotId = null;
        this.lastShapeId = null;
        this.initTarget();
      },

      getRegion: function (el, x, y) {
        var i,
          regionMap = this.regionMap; // maps regions to value positions
        for (i = regionMap.length; i--;) {
          if (regionMap[i] !== null && x >= regionMap[i][0] && x <= regionMap[i][1]) {
            return regionMap[i][2];
          }
        }
        return undefined;
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion;
        return {
          isNull: this.yvalues[currentRegion] === null,
          x: this.xvalues[currentRegion],
          y: this.yvalues[currentRegion],
          color: this.options.get('lineColor'),
          fillColor: this.options.get('fillColor'),
          offset: currentRegion
        };
      },

      renderHighlight: function () {
        var currentRegion = this.currentRegion,
          target = this.target,
          vertex = this.vertices[currentRegion],
          options = this.options,
          spotRadius = options.get('spotRadius'),
          highlightSpotColor = options.get('highlightSpotColor'),
          highlightLineColor = options.get('highlightLineColor'),
          highlightSpot, highlightLine;

        if (!vertex) {
          return;
        }
        if (spotRadius && highlightSpotColor) {
          highlightSpot = target.drawCircle(vertex[0], vertex[1],
            spotRadius, undefined, highlightSpotColor);
          this.highlightSpotId = highlightSpot.id;
          target.insertAfterShape(this.lastShapeId, highlightSpot);
        }
        if (highlightLineColor) {
          highlightLine = target.drawLine(vertex[0], this.canvasTop, vertex[0],
            this.canvasTop + this.canvasHeight, highlightLineColor);
          this.highlightLineId = highlightLine.id;
          target.insertAfterShape(this.lastShapeId, highlightLine);
        }
      },

      removeHighlight: function () {
        var target = this.target;
        if (this.highlightSpotId) {
          target.removeShapeId(this.highlightSpotId);
          this.highlightSpotId = null;
        }
        if (this.highlightLineId) {
          target.removeShapeId(this.highlightLineId);
          this.highlightLineId = null;
        }
      },

      scanValues: function () {
        var values = this.values,
          valcount = values.length,
          xvalues = this.xvalues,
          yvalues = this.yvalues,
          yminmax = this.yminmax,
          i, val, isStr, isArray, sp;
        for (i = 0; i < valcount; i++) {
          val = values[i];
          isStr = typeof(values[i]) === 'string';
          isArray = typeof(values[i]) === 'object' && values[i] instanceof Array;
          sp = isStr && values[i].split(':');
          if (isStr && sp.length === 2) { // x:y
            xvalues.push(Number(sp[0]));
            yvalues.push(Number(sp[1]));
            yminmax.push(Number(sp[1]));
          } else if (isArray) {
            xvalues.push(val[0]);
            yvalues.push(val[1]);
            yminmax.push(val[1]);
          } else {
            xvalues.push(i);
            if (values[i] === null || values[i] === 'null') {
              yvalues.push(null);
            } else {
              yvalues.push(Number(val));
              yminmax.push(Number(val));
            }
          }
        }
        if (this.options.get('xvalues')) {
          xvalues = this.options.get('xvalues');
        }

        this.maxy = this.maxyorg = Math.max.apply(Math, yminmax);
        this.miny = this.minyorg = Math.min.apply(Math, yminmax);

        this.maxx = Math.max.apply(Math, xvalues);
        this.minx = Math.min.apply(Math, xvalues);

        this.xvalues = xvalues;
        this.yvalues = yvalues;
        this.yminmax = yminmax;

      },

      processRangeOptions: function () {
        var options = this.options,
          normalRangeMin = options.get('normalRangeMin'),
          normalRangeMax = options.get('normalRangeMax');

        if (normalRangeMin !== undefined) {
          if (normalRangeMin < this.miny) {
            this.miny = normalRangeMin;
          }
          if (normalRangeMax > this.maxy) {
            this.maxy = normalRangeMax;
          }
        }
        if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.miny)) {
          this.miny = options.get('chartRangeMin');
        }
        if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.maxy)) {
          this.maxy = options.get('chartRangeMax');
        }
        if (options.get('chartRangeMinX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMinX') < this.minx)) {
          this.minx = options.get('chartRangeMinX');
        }
        if (options.get('chartRangeMaxX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMaxX') > this.maxx)) {
          this.maxx = options.get('chartRangeMaxX');
        }

      },

      drawNormalRange: function (canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey) {
        var normalRangeMin = this.options.get('normalRangeMin'),
          normalRangeMax = this.options.get('normalRangeMax'),
          ytop = canvasTop + Math.round(canvasHeight - (canvasHeight * ((normalRangeMax - this.miny) / rangey))),
          height = Math.round((canvasHeight * (normalRangeMax - normalRangeMin)) / rangey);
        this.target.drawRect(canvasLeft, ytop, canvasWidth, height, undefined, this.options.get('normalRangeColor')).append();
      },

      render: function () {
        var options = this.options,
          target = this.target,
          canvasWidth = this.canvasWidth,
          canvasHeight = this.canvasHeight,
          vertices = this.vertices,
          spotRadius = options.get('spotRadius'),
          regionMap = this.regionMap,
          rangex, rangey, yvallast,
          canvasTop, canvasLeft,
          vertex, path, paths, x, y, xnext, xpos, xposnext,
          last, next, yvalcount, lineShapes, fillShapes, plen,
          valueSpots, hlSpotsEnabled, color, xvalues, yvalues, i;

        if (!line._super.render.call(this)) {
          return;
        }

        this.scanValues();
        this.processRangeOptions();

        xvalues = this.xvalues;
        yvalues = this.yvalues;

        if (!this.yminmax.length || this.yvalues.length < 2) {
          // empty or all null valuess
          return;
        }

        canvasTop = canvasLeft = 0;

        rangex = this.maxx - this.minx === 0 ? 1 : this.maxx - this.minx;
        rangey = this.maxy - this.miny === 0 ? 1 : this.maxy - this.miny;
        yvallast = this.yvalues.length - 1;

        if (spotRadius && (canvasWidth < (spotRadius * 4) || canvasHeight < (spotRadius * 4))) {
          spotRadius = 0;
        }
        if (spotRadius) {
          // adjust the canvas size as required so that spots will fit
          hlSpotsEnabled = options.get('highlightSpotColor') &&  !options.get('disableInteraction');
          if (hlSpotsEnabled || options.get('minSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.miny)) {
            canvasHeight -= Math.ceil(spotRadius);
          }
          if (hlSpotsEnabled || options.get('maxSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.maxy)) {
            canvasHeight -= Math.ceil(spotRadius);
            canvasTop += Math.ceil(spotRadius);
          }
          if (hlSpotsEnabled ||
            ((options.get('minSpotColor') || options.get('maxSpotColor')) && (yvalues[0] === this.miny || yvalues[0] === this.maxy))) {
            canvasLeft += Math.ceil(spotRadius);
            canvasWidth -= Math.ceil(spotRadius);
          }
          if (hlSpotsEnabled || options.get('spotColor') ||
            (options.get('minSpotColor') || options.get('maxSpotColor') &&
              (yvalues[yvallast] === this.miny || yvalues[yvallast] === this.maxy))) {
            canvasWidth -= Math.ceil(spotRadius);
          }
        }


        canvasHeight--;

        if (options.get('normalRangeMin') !== undefined && !options.get('drawNormalOnTop')) {
          this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
        }

        path = [];
        paths = [path];
        last = next = null;
        yvalcount = yvalues.length;
        for (i = 0; i < yvalcount; i++) {
          x = xvalues[i];
          xnext = xvalues[i + 1];
          y = yvalues[i];
          xpos = canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex));
          xposnext = i < yvalcount - 1 ? canvasLeft + Math.round((xnext - this.minx) * (canvasWidth / rangex)) : canvasWidth;
          next = xpos + ((xposnext - xpos) / 2);
          regionMap[i] = [last || 0, next, i];
          last = next;
          if (y === null) {
            if (i) {
              if (yvalues[i - 1] !== null) {
                path = [];
                paths.push(path);
              }
              vertices.push(null);
            }
          } else {
            if (y < this.miny) {
              y = this.miny;
            }
            if (y > this.maxy) {
              y = this.maxy;
            }
            if (!path.length) {
              // previous value was null
              path.push([xpos, canvasTop + canvasHeight]);
            }
            vertex = [xpos, canvasTop + Math.round(canvasHeight - (canvasHeight * ((y - this.miny) / rangey)))];
            path.push(vertex);
            vertices.push(vertex);
          }
        }

        lineShapes = [];
        fillShapes = [];
        plen = paths.length;
        for (i = 0; i < plen; i++) {
          path = paths[i];
          if (path.length) {
            if (options.get('fillColor')) {
              path.push([path[path.length - 1][0], (canvasTop + canvasHeight)]);
              fillShapes.push(path.slice(0));
              path.pop();
            }
            // if there's only a single point in this path, then we want to display it
            // as a vertical line which means we keep path[0]  as is
            if (path.length > 2) {
              // else we want the first value
              path[0] = [path[0][0], path[1][1]];
            }
            lineShapes.push(path);
          }
        }

        // draw the fill first, then optionally the normal range, then the line on top of that
        plen = fillShapes.length;
        for (i = 0; i < plen; i++) {
          target.drawShape(fillShapes[i],
            options.get('fillColor'), options.get('fillColor')).append();
        }

        if (options.get('normalRangeMin') !== undefined && options.get('drawNormalOnTop')) {
          this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
        }

        plen = lineShapes.length;
        for (i = 0; i < plen; i++) {
          target.drawShape(lineShapes[i], options.get('lineColor'), undefined,
            options.get('lineWidth')).append();
        }

        if (spotRadius && options.get('valueSpots')) {
          valueSpots = options.get('valueSpots');
          if (valueSpots.get === undefined) {
            valueSpots = new RangeMap(valueSpots);
          }
          for (i = 0; i < yvalcount; i++) {
            color = valueSpots.get(yvalues[i]);
            if (color) {
              target.drawCircle(canvasLeft + Math.round((xvalues[i] - this.minx) * (canvasWidth / rangex)),
                canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[i] - this.miny) / rangey))),
                spotRadius, undefined,
                color).append();
            }
          }

        }
        if (spotRadius && options.get('spotColor') && yvalues[yvallast] !== null) {
          target.drawCircle(canvasLeft + Math.round((xvalues[xvalues.length - 1] - this.minx) * (canvasWidth / rangex)),
            canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[yvallast] - this.miny) / rangey))),
            spotRadius, undefined,
            options.get('spotColor')).append();
        }
        if (this.maxy !== this.minyorg) {
          if (spotRadius && options.get('minSpotColor')) {
            x = xvalues[$.inArray(this.minyorg, yvalues)];
            target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
              canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.minyorg - this.miny) / rangey))),
              spotRadius, undefined,
              options.get('minSpotColor')).append();
          }
          if (spotRadius && options.get('maxSpotColor')) {
            x = xvalues[$.inArray(this.maxyorg, yvalues)];
            target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
              canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.maxyorg - this.miny) / rangey))),
              spotRadius, undefined,
              options.get('maxSpotColor')).append();
          }
        }

        this.lastShapeId = target.getLastShapeId();
        this.canvasTop = canvasTop;
        target.render();
      }
    });

    /**
     * Bar charts
     */
    $.fn.sparkline.bar = bar = createClass($.fn.sparkline._base, barHighlightMixin, {
      type: 'bar',

      init: function (el, values, options, width, height) {
        var barWidth = parseInt(options.get('barWidth'), 10),
          barSpacing = parseInt(options.get('barSpacing'), 10),
          chartRangeMin = options.get('chartRangeMin'),
          chartRangeMax = options.get('chartRangeMax'),
          chartRangeClip = options.get('chartRangeClip'),
          stackMin = Infinity,
          stackMax = -Infinity,
          isStackString, groupMin, groupMax, stackRanges,
          numValues, i, vlen, range, zeroAxis, xaxisOffset, min, max, clipMin, clipMax,
          stacked, vlist, j, slen, svals, val, yoffset, yMaxCalc, canvasHeightEf;
        bar._super.init.call(this, el, values, options, width, height);

        // scan values to determine whether to stack bars
        for (i = 0, vlen = values.length; i < vlen; i++) {
          val = values[i];
          isStackString = typeof(val) === 'string' && val.indexOf(':') > -1;
          if (isStackString || $.isArray(val)) {
            stacked = true;
            if (isStackString) {
              val = values[i] = normalizeValues(val.split(':'));
            }
            val = remove(val, null); // min/max will treat null as zero
            groupMin = Math.min.apply(Math, val);
            groupMax = Math.max.apply(Math, val);
            if (groupMin < stackMin) {
              stackMin = groupMin;
            }
            if (groupMax > stackMax) {
              stackMax = groupMax;
            }
          }
        }

        this.stacked = stacked;
        this.regionShapes = {};
        this.barWidth = barWidth;
        this.barSpacing = barSpacing;
        this.totalBarWidth = barWidth + barSpacing;
        this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

        this.initTarget();

        if (chartRangeClip) {
          clipMin = chartRangeMin === undefined ? -Infinity : chartRangeMin;
          clipMax = chartRangeMax === undefined ? Infinity : chartRangeMax;
        }

        numValues = [];
        stackRanges = stacked ? [] : numValues;
        var stackTotals = [];
        var stackRangesNeg = [];
        for (i = 0, vlen = values.length; i < vlen; i++) {
          if (stacked) {
            vlist = values[i];
            values[i] = svals = [];
            stackTotals[i] = 0;
            stackRanges[i] = stackRangesNeg[i] = 0;
            for (j = 0, slen = vlist.length; j < slen; j++) {
              val = svals[j] = chartRangeClip ? clipval(vlist[j], clipMin, clipMax) : vlist[j];
              if (val !== null) {
                if (val > 0) {
                  stackTotals[i] += val;
                }
                if (stackMin < 0 && stackMax > 0) {
                  if (val < 0) {
                    stackRangesNeg[i] += Math.abs(val);
                  } else {
                    stackRanges[i] += val;
                  }
                } else {
                  stackRanges[i] += Math.abs(val - (val < 0 ? stackMax : stackMin));
                }
                numValues.push(val);
              }
            }
          } else {
            val = chartRangeClip ? clipval(values[i], clipMin, clipMax) : values[i];
            val = values[i] = normalizeValue(val);
            if (val !== null) {
              numValues.push(val);
            }
          }
        }
        this.max = max = Math.max.apply(Math, numValues);
        this.min = min = Math.min.apply(Math, numValues);
        this.stackMax = stackMax = stacked ? Math.max.apply(Math, stackTotals) : max;
        this.stackMin = stackMin = stacked ? Math.min.apply(Math, numValues) : min;

        if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < min)) {
          min = options.get('chartRangeMin');
        }
        if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > max)) {
          max = options.get('chartRangeMax');
        }

        this.zeroAxis = zeroAxis = options.get('zeroAxis', true);
        if (min <= 0 && max >= 0 && zeroAxis) {
          xaxisOffset = 0;
        } else if (zeroAxis == false) {
          xaxisOffset = min;
        } else if (min > 0) {
          xaxisOffset = min;
        } else {
          xaxisOffset = max;
        }
        this.xaxisOffset = xaxisOffset;

        range = stacked ? (Math.max.apply(Math, stackRanges) + Math.max.apply(Math, stackRangesNeg)) : max - min;

        // as we plot zero/min values a single pixel line, we add a pixel to all other
        // values - Reduce the effective canvas size to suit
        this.canvasHeightEf = (zeroAxis && min < 0) ? this.canvasHeight - 2 : this.canvasHeight - 1;

        if (min < xaxisOffset) {
          yMaxCalc = (stacked && max >= 0) ? stackMax : max;
          yoffset = (yMaxCalc - xaxisOffset) / range * this.canvasHeight;
          if (yoffset !== Math.ceil(yoffset)) {
            this.canvasHeightEf -= 2;
            yoffset = Math.ceil(yoffset);
          }
        } else {
          yoffset = this.canvasHeight;
        }
        this.yoffset = yoffset;

        if ($.isArray(options.get('colorMap'))) {
          this.colorMapByIndex = options.get('colorMap');
          this.colorMapByValue = null;
        } else {
          this.colorMapByIndex = null;
          this.colorMapByValue = options.get('colorMap');
          if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
            this.colorMapByValue = new RangeMap(this.colorMapByValue);
          }
        }

        this.range = range;
      },

      getRegion: function (el, x, y) {
        var result = Math.floor(x / this.totalBarWidth);
        return (result < 0 || result >= this.values.length) ? undefined : result;
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion,
          values = ensureArray(this.values[currentRegion]),
          result = [],
          value, i;
        for (i = values.length; i--;) {
          value = values[i];
          result.push({
            isNull: value === null,
            value: value,
            color: this.calcColor(i, value, currentRegion),
            offset: currentRegion
          });
        }
        return result;
      },

      calcColor: function (stacknum, value, valuenum) {
        var colorMapByIndex = this.colorMapByIndex,
          colorMapByValue = this.colorMapByValue,
          options = this.options,
          color, newColor;
        if (this.stacked) {
          color = options.get('stackedBarColor');
        } else {
          color = (value < 0) ? options.get('negBarColor') : options.get('barColor');
        }
        if (value === 0 && options.get('zeroColor') !== undefined) {
          color = options.get('zeroColor');
        }
        if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
          color = newColor;
        } else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
          color = colorMapByIndex[valuenum];
        }
        return $.isArray(color) ? color[stacknum % color.length] : color;
      },

      /**
       * Render bar(s) for a region
       */
      renderRegion: function (valuenum, highlight) {
        var vals = this.values[valuenum],
          options = this.options,
          xaxisOffset = this.xaxisOffset,
          result = [],
          range = this.range,
          stacked = this.stacked,
          target = this.target,
          x = valuenum * this.totalBarWidth,
          canvasHeightEf = this.canvasHeightEf,
          yoffset = this.yoffset,
          y, height, color, isNull, yoffsetNeg, i, valcount, val, minPlotted, allMin;

        vals = $.isArray(vals) ? vals : [vals];
        valcount = vals.length;
        val = vals[0];
        isNull = all(null, vals);
        allMin = all(xaxisOffset, vals, true);

        if (isNull) {
          if (options.get('nullColor')) {
            color = highlight ? options.get('nullColor') : this.calcHighlightColor(options.get('nullColor'), options);
            y = (yoffset > 0) ? yoffset - 1 : yoffset;
            return target.drawRect(x, y, this.barWidth - 1, 0, color, color);
          } else {
            return undefined;
          }
        }
        yoffsetNeg = yoffset;
        for (i = 0; i < valcount; i++) {
          val = vals[i];

          if (stacked && val === xaxisOffset) {
            if (!allMin || minPlotted) {
              continue;
            }
            minPlotted = true;
          }

          if (range > 0) {
            height = Math.floor(canvasHeightEf * ((Math.abs(val - xaxisOffset) / range))) + 1;
          } else {
            height = 1;
          }
          if (val < xaxisOffset || (val === xaxisOffset && yoffset === 0)) {
            y = yoffsetNeg;
            yoffsetNeg += height;
          } else {
            y = yoffset - height;
            yoffset -= height;
          }
          color = this.calcColor(i, val, valuenum);
          if (highlight) {
            color = this.calcHighlightColor(color, options);
          }
          result.push(target.drawRect(x, y, this.barWidth - 1, height - 1, color, color));
        }
        if (result.length === 1) {
          return result[0];
        }
        return result;
      }
    });

    /**
     * Tristate charts
     */
    $.fn.sparkline.tristate = tristate = createClass($.fn.sparkline._base, barHighlightMixin, {
      type: 'tristate',

      init: function (el, values, options, width, height) {
        var barWidth = parseInt(options.get('barWidth'), 10),
          barSpacing = parseInt(options.get('barSpacing'), 10);
        tristate._super.init.call(this, el, values, options, width, height);

        this.regionShapes = {};
        this.barWidth = barWidth;
        this.barSpacing = barSpacing;
        this.totalBarWidth = barWidth + barSpacing;
        this.values = $.map(values, Number);
        this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

        if ($.isArray(options.get('colorMap'))) {
          this.colorMapByIndex = options.get('colorMap');
          this.colorMapByValue = null;
        } else {
          this.colorMapByIndex = null;
          this.colorMapByValue = options.get('colorMap');
          if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
            this.colorMapByValue = new RangeMap(this.colorMapByValue);
          }
        }
        this.initTarget();
      },

      getRegion: function (el, x, y) {
        return Math.floor(x / this.totalBarWidth);
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion;
        return {
          isNull: this.values[currentRegion] === undefined,
          value: this.values[currentRegion],
          color: this.calcColor(this.values[currentRegion], currentRegion),
          offset: currentRegion
        };
      },

      calcColor: function (value, valuenum) {
        var values = this.values,
          options = this.options,
          colorMapByIndex = this.colorMapByIndex,
          colorMapByValue = this.colorMapByValue,
          color, newColor;

        if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
          color = newColor;
        } else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
          color = colorMapByIndex[valuenum];
        } else if (values[valuenum] < 0) {
          color = options.get('negBarColor');
        } else if (values[valuenum] > 0) {
          color = options.get('posBarColor');
        } else {
          color = options.get('zeroBarColor');
        }
        return color;
      },

      renderRegion: function (valuenum, highlight) {
        var values = this.values,
          options = this.options,
          target = this.target,
          canvasHeight, height, halfHeight,
          x, y, color;

        canvasHeight = target.pixelHeight;
        halfHeight = Math.round(canvasHeight / 2);

        x = valuenum * this.totalBarWidth;
        if (values[valuenum] < 0) {
          y = halfHeight;
          height = halfHeight - 1;
        } else if (values[valuenum] > 0) {
          y = 0;
          height = halfHeight - 1;
        } else {
          y = halfHeight - 1;
          height = 2;
        }
        color = this.calcColor(values[valuenum], valuenum);
        if (color === null) {
          return;
        }
        if (highlight) {
          color = this.calcHighlightColor(color, options);
        }
        return target.drawRect(x, y, this.barWidth - 1, height - 1, color, color);
      }
    });

    /**
     * Discrete charts
     */
    $.fn.sparkline.discrete = discrete = createClass($.fn.sparkline._base, barHighlightMixin, {
      type: 'discrete',

      init: function (el, values, options, width, height) {
        discrete._super.init.call(this, el, values, options, width, height);

        this.regionShapes = {};
        this.values = values = $.map(values, Number);
        this.min = Math.min.apply(Math, values);
        this.max = Math.max.apply(Math, values);
        this.range = this.max - this.min;
        this.width = width = options.get('width') === 'auto' ? values.length * 2 : this.width;
        this.interval = Math.floor(width / values.length);
        this.itemWidth = width / values.length;
        if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.min)) {
          this.min = options.get('chartRangeMin');
        }
        if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.max)) {
          this.max = options.get('chartRangeMax');
        }
        this.initTarget();
        if (this.target) {
          this.lineHeight = options.get('lineHeight') === 'auto' ? Math.round(this.canvasHeight * 0.3) : options.get('lineHeight');
        }
      },

      getRegion: function (el, x, y) {
        return Math.floor(x / this.itemWidth);
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion;
        return {
          isNull: this.values[currentRegion] === undefined,
          value: this.values[currentRegion],
          offset: currentRegion
        };
      },

      renderRegion: function (valuenum, highlight) {
        var values = this.values,
          options = this.options,
          min = this.min,
          max = this.max,
          range = this.range,
          interval = this.interval,
          target = this.target,
          canvasHeight = this.canvasHeight,
          lineHeight = this.lineHeight,
          pheight = canvasHeight - lineHeight,
          ytop, val, color, x;

        val = clipval(values[valuenum], min, max);
        x = valuenum * interval;
        ytop = Math.round(pheight - pheight * ((val - min) / range));
        color = (options.get('thresholdColor') && val < options.get('thresholdValue')) ? options.get('thresholdColor') : options.get('lineColor');
        if (highlight) {
          color = this.calcHighlightColor(color, options);
        }
        return target.drawLine(x, ytop, x, ytop + lineHeight, color);
      }
    });

    /**
     * Bullet charts
     */
    $.fn.sparkline.bullet = bullet = createClass($.fn.sparkline._base, {
      type: 'bullet',

      init: function (el, values, options, width, height) {
        var min, max, vals;
        bullet._super.init.call(this, el, values, options, width, height);

        // values: target, performance, range1, range2, range3
        this.values = values = normalizeValues(values);
        // target or performance could be null
        vals = values.slice();
        vals[0] = vals[0] === null ? vals[2] : vals[0];
        vals[1] = values[1] === null ? vals[2] : vals[1];
        min = Math.min.apply(Math, values);
        max = Math.max.apply(Math, values);
        if (options.get('base') === undefined) {
          min = min < 0 ? min : 0;
        } else {
          min = options.get('base');
        }
        this.min = min;
        this.max = max;
        this.range = max - min;
        this.shapes = {};
        this.valueShapes = {};
        this.regiondata = {};
        this.width = width = options.get('width') === 'auto' ? '4.0em' : width;
        this.target = this.$el.simpledraw(width, height, options.get('composite'));
        if (!values.length) {
          this.disabled = true;
        }
        this.initTarget();
      },

      getRegion: function (el, x, y) {
        var shapeid = this.target.getShapeAt(el, x, y);
        return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion;
        return {
          fieldkey: currentRegion.substr(0, 1),
          value: this.values[currentRegion.substr(1)],
          region: currentRegion
        };
      },

      changeHighlight: function (highlight) {
        var currentRegion = this.currentRegion,
          shapeid = this.valueShapes[currentRegion],
          shape;
        delete this.shapes[shapeid];
        switch (currentRegion.substr(0, 1)) {
          case 'r':
            shape = this.renderRange(currentRegion.substr(1), highlight);
            break;
          case 'p':
            shape = this.renderPerformance(highlight);
            break;
          case 't':
            shape = this.renderTarget(highlight);
            break;
        }
        this.valueShapes[currentRegion] = shape.id;
        this.shapes[shape.id] = currentRegion;
        this.target.replaceWithShape(shapeid, shape);
      },

      renderRange: function (rn, highlight) {
        var rangeval = this.values[rn],
          rangewidth = Math.round(this.canvasWidth * ((rangeval - this.min) / this.range)),
          color = this.options.get('rangeColors')[rn - 2];
        if (highlight) {
          color = this.calcHighlightColor(color, this.options);
        }
        return this.target.drawRect(0, 0, rangewidth - 1, this.canvasHeight - 1, color, color);
      },

      renderPerformance: function (highlight) {
        var perfval = this.values[1],
          perfwidth = Math.round(this.canvasWidth * ((perfval - this.min) / this.range)),
          color = this.options.get('performanceColor');
        if (highlight) {
          color = this.calcHighlightColor(color, this.options);
        }
        return this.target.drawRect(0, Math.round(this.canvasHeight * 0.3), perfwidth - 1,
          Math.round(this.canvasHeight * 0.4) - 1, color, color);
      },

      renderTarget: function (highlight) {
        var targetval = this.values[0],
          x = Math.round(this.canvasWidth * ((targetval - this.min) / this.range) - (this.options.get('targetWidth') / 2)),
          targettop = Math.round(this.canvasHeight * 0.10),
          targetheight = this.canvasHeight - (targettop * 2),
          color = this.options.get('targetColor');
        if (highlight) {
          color = this.calcHighlightColor(color, this.options);
        }
        return this.target.drawRect(x, targettop, this.options.get('targetWidth') - 1, targetheight - 1, color, color);
      },

      render: function () {
        var vlen = this.values.length,
          target = this.target,
          i, shape;
        if (!bullet._super.render.call(this)) {
          return;
        }
        for (i = 2; i < vlen; i++) {
          shape = this.renderRange(i).append();
          this.shapes[shape.id] = 'r' + i;
          this.valueShapes['r' + i] = shape.id;
        }
        if (this.values[1] !== null) {
          shape = this.renderPerformance().append();
          this.shapes[shape.id] = 'p1';
          this.valueShapes.p1 = shape.id;
        }
        if (this.values[0] !== null) {
          shape = this.renderTarget().append();
          this.shapes[shape.id] = 't0';
          this.valueShapes.t0 = shape.id;
        }
        target.render();
      }
    });

    /**
     * Pie charts
     */
    $.fn.sparkline.pie = pie = createClass($.fn.sparkline._base, {
      type: 'pie',

      init: function (el, values, options, width, height) {
        var total = 0, i;

        pie._super.init.call(this, el, values, options, width, height);

        this.shapes = {}; // map shape ids to value offsets
        this.valueShapes = {}; // maps value offsets to shape ids
        this.values = values = $.map(values, Number);

        if (options.get('width') === 'auto') {
          this.width = this.height;
        }

        if (values.length > 0) {
          for (i = values.length; i--;) {
            total += values[i];
          }
        }
        this.total = total;
        this.initTarget();
        this.radius = Math.floor(Math.min(this.canvasWidth, this.canvasHeight) / 2);
      },

      getRegion: function (el, x, y) {
        var shapeid = this.target.getShapeAt(el, x, y);
        return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
      },

      getCurrentRegionFields: function () {
        var currentRegion = this.currentRegion;
        return {
          isNull: this.values[currentRegion] === undefined,
          value: this.values[currentRegion],
          percent: this.values[currentRegion] / this.total * 100,
          color: this.options.get('sliceColors')[currentRegion % this.options.get('sliceColors').length],
          offset: currentRegion
        };
      },

      changeHighlight: function (highlight) {
        var currentRegion = this.currentRegion,
          newslice = this.renderSlice(currentRegion, highlight),
          shapeid = this.valueShapes[currentRegion];
        delete this.shapes[shapeid];
        this.target.replaceWithShape(shapeid, newslice);
        this.valueShapes[currentRegion] = newslice.id;
        this.shapes[newslice.id] = currentRegion;
      },

      renderSlice: function (valuenum, highlight) {
        var target = this.target,
          options = this.options,
          radius = this.radius,
          borderWidth = options.get('borderWidth'),
          offset = options.get('offset'),
          circle = 2 * Math.PI,
          values = this.values,
          total = this.total,
          next = offset ? (2*Math.PI)*(offset/360) : 0,
          start, end, i, vlen, color;

        vlen = values.length;
        for (i = 0; i < vlen; i++) {
          start = next;
          end = next;
          if (total > 0) {  // avoid divide by zero
            end = next + (circle * (values[i] / total));
          }
          if (valuenum === i) {
            color = options.get('sliceColors')[i % options.get('sliceColors').length];
            if (highlight) {
              color = this.calcHighlightColor(color, options);
            }

            return target.drawPieSlice(radius, radius, radius - borderWidth, start, end, undefined, color);
          }
          next = end;
        }
      },

      render: function () {
        var target = this.target,
          values = this.values,
          options = this.options,
          radius = this.radius,
          borderWidth = options.get('borderWidth'),
          shape, i;

        if (!pie._super.render.call(this)) {
          return;
        }
        if (borderWidth) {
          target.drawCircle(radius, radius, Math.floor(radius - (borderWidth / 2)),
            options.get('borderColor'), undefined, borderWidth).append();
        }
        for (i = values.length; i--;) {
          if (values[i]) { // don't render zero values
            shape = this.renderSlice(i).append();
            this.valueShapes[i] = shape.id; // store just the shapeid
            this.shapes[shape.id] = i;
          }
        }
        target.render();
      }
    });

    /**
     * Box plots
     */
    $.fn.sparkline.box = box = createClass($.fn.sparkline._base, {
      type: 'box',

      init: function (el, values, options, width, height) {
        box._super.init.call(this, el, values, options, width, height);
        this.values = $.map(values, Number);
        this.width = options.get('width') === 'auto' ? '4.0em' : width;
        this.initTarget();
        if (!this.values.length) {
          this.disabled = 1;
        }
      },

      /**
       * Simulate a single region
       */
      getRegion: function () {
        return 1;
      },

      getCurrentRegionFields: function () {
        var result = [
          { field: 'lq', value: this.quartiles[0] },
          { field: 'med', value: this.quartiles[1] },
          { field: 'uq', value: this.quartiles[2] }
        ];
        if (this.loutlier !== undefined) {
          result.push({ field: 'lo', value: this.loutlier});
        }
        if (this.routlier !== undefined) {
          result.push({ field: 'ro', value: this.routlier});
        }
        if (this.lwhisker !== undefined) {
          result.push({ field: 'lw', value: this.lwhisker});
        }
        if (this.rwhisker !== undefined) {
          result.push({ field: 'rw', value: this.rwhisker});
        }
        return result;
      },

      render: function () {
        var target = this.target,
          values = this.values,
          vlen = values.length,
          options = this.options,
          canvasWidth = this.canvasWidth,
          canvasHeight = this.canvasHeight,
          minValue = options.get('chartRangeMin') === undefined ? Math.min.apply(Math, values) : options.get('chartRangeMin'),
          maxValue = options.get('chartRangeMax') === undefined ? Math.max.apply(Math, values) : options.get('chartRangeMax'),
          canvasLeft = 0,
          lwhisker, loutlier, iqr, q1, q2, q3, rwhisker, routlier, i,
          size, unitSize;

        if (!box._super.render.call(this)) {
          return;
        }

        if (options.get('raw')) {
          if (options.get('showOutliers') && values.length > 5) {
            loutlier = values[0];
            lwhisker = values[1];
            q1 = values[2];
            q2 = values[3];
            q3 = values[4];
            rwhisker = values[5];
            routlier = values[6];
          } else {
            lwhisker = values[0];
            q1 = values[1];
            q2 = values[2];
            q3 = values[3];
            rwhisker = values[4];
          }
        } else {
          values.sort(function (a, b) { return a - b; });
          q1 = quartile(values, 1);
          q2 = quartile(values, 2);
          q3 = quartile(values, 3);
          iqr = q3 - q1;
          if (options.get('showOutliers')) {
            lwhisker = rwhisker = undefined;
            for (i = 0; i < vlen; i++) {
              if (lwhisker === undefined && values[i] > q1 - (iqr * options.get('outlierIQR'))) {
                lwhisker = values[i];
              }
              if (values[i] < q3 + (iqr * options.get('outlierIQR'))) {
                rwhisker = values[i];
              }
            }
            loutlier = values[0];
            routlier = values[vlen - 1];
          } else {
            lwhisker = values[0];
            rwhisker = values[vlen - 1];
          }
        }
        this.quartiles = [q1, q2, q3];
        this.lwhisker = lwhisker;
        this.rwhisker = rwhisker;
        this.loutlier = loutlier;
        this.routlier = routlier;

        unitSize = canvasWidth / (maxValue - minValue + 1);
        if (options.get('showOutliers')) {
          canvasLeft = Math.ceil(options.get('spotRadius'));
          canvasWidth -= 2 * Math.ceil(options.get('spotRadius'));
          unitSize = canvasWidth / (maxValue - minValue + 1);
          if (loutlier < lwhisker) {
            target.drawCircle((loutlier - minValue) * unitSize + canvasLeft,
              canvasHeight / 2,
              options.get('spotRadius'),
              options.get('outlierLineColor'),
              options.get('outlierFillColor')).append();
          }
          if (routlier > rwhisker) {
            target.drawCircle((routlier - minValue) * unitSize + canvasLeft,
              canvasHeight / 2,
              options.get('spotRadius'),
              options.get('outlierLineColor'),
              options.get('outlierFillColor')).append();
          }
        }

        // box
        target.drawRect(
          Math.round((q1 - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight * 0.1),
          Math.round((q3 - q1) * unitSize),
          Math.round(canvasHeight * 0.8),
          options.get('boxLineColor'),
          options.get('boxFillColor')).append();
        // left whisker
        target.drawLine(
          Math.round((lwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 2),
          Math.round((q1 - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 2),
          options.get('lineColor')).append();
        target.drawLine(
          Math.round((lwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 4),
          Math.round((lwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight - canvasHeight / 4),
          options.get('whiskerColor')).append();
        // right whisker
        target.drawLine(Math.round((rwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 2),
          Math.round((q3 - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 2),
          options.get('lineColor')).append();
        target.drawLine(
          Math.round((rwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight / 4),
          Math.round((rwhisker - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight - canvasHeight / 4),
          options.get('whiskerColor')).append();
        // median line
        target.drawLine(
          Math.round((q2 - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight * 0.1),
          Math.round((q2 - minValue) * unitSize + canvasLeft),
          Math.round(canvasHeight * 0.9),
          options.get('medianColor')).append();
        if (options.get('target')) {
          size = Math.ceil(options.get('spotRadius'));
          target.drawLine(
            Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
            Math.round((canvasHeight / 2) - size),
            Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
            Math.round((canvasHeight / 2) + size),
            options.get('targetColor')).append();
          target.drawLine(
            Math.round((options.get('target') - minValue) * unitSize + canvasLeft - size),
            Math.round(canvasHeight / 2),
            Math.round((options.get('target') - minValue) * unitSize + canvasLeft + size),
            Math.round(canvasHeight / 2),
            options.get('targetColor')).append();
        }
        target.render();
      }
    });

    // Setup a very simple "virtual canvas" to make drawing the few shapes we need easier
    // This is accessible as $(foo).simpledraw()

    VShape = createClass({
      init: function (target, id, type, args) {
        this.target = target;
        this.id = id;
        this.type = type;
        this.args = args;
      },
      append: function () {
        this.target.appendShape(this);
        return this;
      }
    });

    VCanvas_base = createClass({
      _pxregex: /(\d+)(px)?\s*$/i,

      init: function (width, height, target) {
        if (!width) {
          return;
        }
        this.width = width;
        this.height = height;
        this.target = target;
        this.lastShapeId = null;
        if (target[0]) {
          target = target[0];
        }
        $.data(target, '_jqs_vcanvas', this);
      },

      drawLine: function (x1, y1, x2, y2, lineColor, lineWidth) {
        return this.drawShape([[x1, y1], [x2, y2]], lineColor, lineWidth);
      },

      drawShape: function (path, lineColor, fillColor, lineWidth) {
        return this._genShape('Shape', [path, lineColor, fillColor, lineWidth]);
      },

      drawCircle: function (x, y, radius, lineColor, fillColor, lineWidth) {
        return this._genShape('Circle', [x, y, radius, lineColor, fillColor, lineWidth]);
      },

      drawPieSlice: function (x, y, radius, startAngle, endAngle, lineColor, fillColor) {
        return this._genShape('PieSlice', [x, y, radius, startAngle, endAngle, lineColor, fillColor]);
      },

      drawRect: function (x, y, width, height, lineColor, fillColor) {
        return this._genShape('Rect', [x, y, width, height, lineColor, fillColor]);
      },

      getElement: function () {
        return this.canvas;
      },

      /**
       * Return the most recently inserted shape id
       */
      getLastShapeId: function () {
        return this.lastShapeId;
      },

      /**
       * Clear and reset the canvas
       */
      reset: function () {
        alert('reset not implemented');
      },

      _insert: function (el, target) {
        $(target).html(el);
      },

      /**
       * Calculate the pixel dimensions of the canvas
       */
      _calculatePixelDims: function (width, height, canvas) {
        // XXX This should probably be a configurable option
        var match;
        match = this._pxregex.exec(height);
        if (match) {
          this.pixelHeight = match[1];
        } else {
          this.pixelHeight = $(canvas).height();
        }
        match = this._pxregex.exec(width);
        if (match) {
          this.pixelWidth = match[1];
        } else {
          this.pixelWidth = $(canvas).width();
        }
      },

      /**
       * Generate a shape object and id for later rendering
       */
      _genShape: function (shapetype, shapeargs) {
        var id = shapeCount++;
        shapeargs.unshift(id);
        return new VShape(this, id, shapetype, shapeargs);
      },

      /**
       * Add a shape to the end of the render queue
       */
      appendShape: function (shape) {
        alert('appendShape not implemented');
      },

      /**
       * Replace one shape with another
       */
      replaceWithShape: function (shapeid, shape) {
        alert('replaceWithShape not implemented');
      },

      /**
       * Insert one shape after another in the render queue
       */
      insertAfterShape: function (shapeid, shape) {
        alert('insertAfterShape not implemented');
      },

      /**
       * Remove a shape from the queue
       */
      removeShapeId: function (shapeid) {
        alert('removeShapeId not implemented');
      },

      /**
       * Find a shape at the specified x/y co-ordinates
       */
      getShapeAt: function (el, x, y) {
        alert('getShapeAt not implemented');
      },

      /**
       * Render all queued shapes onto the canvas
       */
      render: function () {
        alert('render not implemented');
      }
    });

    VCanvas_canvas = createClass(VCanvas_base, {
      init: function (width, height, target, interact) {
        VCanvas_canvas._super.init.call(this, width, height, target);
        this.canvas = document.createElement('canvas');
        if (target[0]) {
          target = target[0];
        }
        $.data(target, '_jqs_vcanvas', this);
        $(this.canvas).css({ display: 'inline-block', width: width, height: height, verticalAlign: 'top' });
        this._insert(this.canvas, target);
        this._calculatePixelDims(width, height, this.canvas);
        this.canvas.width = this.pixelWidth;
        this.canvas.height = this.pixelHeight;
        this.interact = interact;
        this.shapes = {};
        this.shapeseq = [];
        this.currentTargetShapeId = undefined;
        $(this.canvas).css({width: this.pixelWidth, height: this.pixelHeight});
      },

      _getContext: function (lineColor, fillColor, lineWidth) {
        var context = this.canvas.getContext('2d');
        if (lineColor !== undefined) {
          context.strokeStyle = lineColor;
        }
        context.lineWidth = lineWidth === undefined ? 1 : lineWidth;
        if (fillColor !== undefined) {
          context.fillStyle = fillColor;
        }
        return context;
      },

      reset: function () {
        var context = this._getContext();
        context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
        this.shapes = {};
        this.shapeseq = [];
        this.currentTargetShapeId = undefined;
      },

      _drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
        var context = this._getContext(lineColor, fillColor, lineWidth),
          i, plen;
        context.beginPath();
        context.moveTo(path[0][0] + 0.5, path[0][1] + 0.5);
        for (i = 1, plen = path.length; i < plen; i++) {
          context.lineTo(path[i][0] + 0.5, path[i][1] + 0.5); // the 0.5 offset gives us crisp pixel-width lines
        }
        if (lineColor !== undefined) {
          context.stroke();
        }
        if (fillColor !== undefined) {
          context.fill();
        }
        if (this.targetX !== undefined && this.targetY !== undefined &&
          context.isPointInPath(this.targetX, this.targetY)) {
          this.currentTargetShapeId = shapeid;
        }
      },

      _drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
        var context = this._getContext(lineColor, fillColor, lineWidth);
        context.beginPath();
        context.arc(x, y, radius, 0, 2 * Math.PI, false);
        if (this.targetX !== undefined && this.targetY !== undefined &&
          context.isPointInPath(this.targetX, this.targetY)) {
          this.currentTargetShapeId = shapeid;
        }
        if (lineColor !== undefined) {
          context.stroke();
        }
        if (fillColor !== undefined) {
          context.fill();
        }
      },

      _drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
        var context = this._getContext(lineColor, fillColor);
        context.beginPath();
        context.moveTo(x, y);
        context.arc(x, y, radius, startAngle, endAngle, false);
        context.lineTo(x, y);
        context.closePath();
        if (lineColor !== undefined) {
          context.stroke();
        }
        if (fillColor) {
          context.fill();
        }
        if (this.targetX !== undefined && this.targetY !== undefined &&
          context.isPointInPath(this.targetX, this.targetY)) {
          this.currentTargetShapeId = shapeid;
        }
      },

      _drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
        return this._drawShape(shapeid, [[x, y], [x + width, y], [x + width, y + height], [x, y + height], [x, y]], lineColor, fillColor);
      },

      appendShape: function (shape) {
        this.shapes[shape.id] = shape;
        this.shapeseq.push(shape.id);
        this.lastShapeId = shape.id;
        return shape.id;
      },

      replaceWithShape: function (shapeid, shape) {
        var shapeseq = this.shapeseq,
          i;
        this.shapes[shape.id] = shape;
        for (i = shapeseq.length; i--;) {
          if (shapeseq[i] == shapeid) {
            shapeseq[i] = shape.id;
          }
        }
        delete this.shapes[shapeid];
      },

      replaceWithShapes: function (shapeids, shapes) {
        var shapeseq = this.shapeseq,
          shapemap = {},
          sid, i, first;

        for (i = shapeids.length; i--;) {
          shapemap[shapeids[i]] = true;
        }
        for (i = shapeseq.length; i--;) {
          sid = shapeseq[i];
          if (shapemap[sid]) {
            shapeseq.splice(i, 1);
            delete this.shapes[sid];
            first = i;
          }
        }
        for (i = shapes.length; i--;) {
          shapeseq.splice(first, 0, shapes[i].id);
          this.shapes[shapes[i].id] = shapes[i];
        }

      },

      insertAfterShape: function (shapeid, shape) {
        var shapeseq = this.shapeseq,
          i;
        for (i = shapeseq.length; i--;) {
          if (shapeseq[i] === shapeid) {
            shapeseq.splice(i + 1, 0, shape.id);
            this.shapes[shape.id] = shape;
            return;
          }
        }
      },

      removeShapeId: function (shapeid) {
        var shapeseq = this.shapeseq,
          i;
        for (i = shapeseq.length; i--;) {
          if (shapeseq[i] === shapeid) {
            shapeseq.splice(i, 1);
            break;
          }
        }
        delete this.shapes[shapeid];
      },

      getShapeAt: function (el, x, y) {
        this.targetX = x;
        this.targetY = y;
        this.render();
        return this.currentTargetShapeId;
      },

      render: function () {
        var shapeseq = this.shapeseq,
          shapes = this.shapes,
          shapeCount = shapeseq.length,
          context = this._getContext(),
          shapeid, shape, i;
        context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
        for (i = 0; i < shapeCount; i++) {
          shapeid = shapeseq[i];
          shape = shapes[shapeid];
          this['_draw' + shape.type].apply(this, shape.args);
        }
        if (!this.interact) {
          // not interactive so no need to keep the shapes array
          this.shapes = {};
          this.shapeseq = [];
        }
      }

    });

    VCanvas_vml = createClass(VCanvas_base, {
      init: function (width, height, target) {
        var groupel;
        VCanvas_vml._super.init.call(this, width, height, target);
        if (target[0]) {
          target = target[0];
        }
        $.data(target, '_jqs_vcanvas', this);
        this.canvas = document.createElement('span');
        $(this.canvas).css({ display: 'inline-block', position: 'relative', overflow: 'hidden', width: width, height: height, margin: '0px', padding: '0px', verticalAlign: 'top'});
        this._insert(this.canvas, target);
        this._calculatePixelDims(width, height, this.canvas);
        this.canvas.width = this.pixelWidth;
        this.canvas.height = this.pixelHeight;
        groupel = '<v:group coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '"' +
          ' style="position:absolute;top:0;left:0;width:' + this.pixelWidth + 'px;height=' + this.pixelHeight + 'px;"></v:group>';
        this.canvas.insertAdjacentHTML('beforeEnd', groupel);
        this.group = $(this.canvas).children()[0];
        this.rendered = false;
        this.prerender = '';
      },

      _drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
        var vpath = [],
          initial, stroke, fill, closed, vel, plen, i;
        for (i = 0, plen = path.length; i < plen; i++) {
          vpath[i] = '' + (path[i][0]) + ',' + (path[i][1]);
        }
        initial = vpath.splice(0, 1);
        lineWidth = lineWidth === undefined ? 1 : lineWidth;
        stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
        fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
        closed = vpath[0] === vpath[vpath.length - 1] ? 'x ' : '';
        vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
          ' id="jqsshape' + shapeid + '" ' +
          stroke +
          fill +
          ' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
          ' path="m ' + initial + ' l ' + vpath.join(', ') + ' ' + closed + 'e">' +
          ' </v:shape>';
        return vel;
      },

      _drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
        var stroke, fill, vel;
        x -= radius;
        y -= radius;
        stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
        fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
        vel = '<v:oval ' +
          ' id="jqsshape' + shapeid + '" ' +
          stroke +
          fill +
          ' style="position:absolute;top:' + y + 'px; left:' + x + 'px; width:' + (radius * 2) + 'px; height:' + (radius * 2) + 'px"></v:oval>';
        return vel;

      },

      _drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
        var vpath, startx, starty, endx, endy, stroke, fill, vel;
        if (startAngle === endAngle) {
          return '';  // VML seems to have problem when start angle equals end angle.
        }
        if ((endAngle - startAngle) === (2 * Math.PI)) {
          startAngle = 0.0;  // VML seems to have a problem when drawing a full circle that doesn't start 0
          endAngle = (2 * Math.PI);
        }

        startx = x + Math.round(Math.cos(startAngle) * radius);
        starty = y + Math.round(Math.sin(startAngle) * radius);
        endx = x + Math.round(Math.cos(endAngle) * radius);
        endy = y + Math.round(Math.sin(endAngle) * radius);

        if (startx === endx && starty === endy) {
          if ((endAngle - startAngle) < Math.PI) {
            // Prevent very small slices from being mistaken as a whole pie
            return '';
          }
          // essentially going to be the entire circle, so ignore startAngle
          startx = endx = x + radius;
          starty = endy = y;
        }

        if (startx === endx && starty === endy && (endAngle - startAngle) < Math.PI) {
          return '';
        }

        vpath = [x - radius, y - radius, x + radius, y + radius, startx, starty, endx, endy];
        stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="1px" strokeColor="' + lineColor + '" ';
        fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
        vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
          ' id="jqsshape' + shapeid + '" ' +
          stroke +
          fill +
          ' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
          ' path="m ' + x + ',' + y + ' wa ' + vpath.join(', ') + ' x e">' +
          ' </v:shape>';
        return vel;
      },

      _drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
        return this._drawShape(shapeid, [[x, y], [x, y + height], [x + width, y + height], [x + width, y], [x, y]], lineColor, fillColor);
      },

      reset: function () {
        this.group.innerHTML = '';
      },

      appendShape: function (shape) {
        var vel = this['_draw' + shape.type].apply(this, shape.args);
        if (this.rendered) {
          this.group.insertAdjacentHTML('beforeEnd', vel);
        } else {
          this.prerender += vel;
        }
        this.lastShapeId = shape.id;
        return shape.id;
      },

      replaceWithShape: function (shapeid, shape) {
        var existing = $('#jqsshape' + shapeid),
          vel = this['_draw' + shape.type].apply(this, shape.args);
        existing[0].outerHTML = vel;
      },

      replaceWithShapes: function (shapeids, shapes) {
        // replace the first shapeid with all the new shapes then toast the remaining old shapes
        var existing = $('#jqsshape' + shapeids[0]),
          replace = '',
          slen = shapes.length,
          i;
        for (i = 0; i < slen; i++) {
          replace += this['_draw' + shapes[i].type].apply(this, shapes[i].args);
        }
        existing[0].outerHTML = replace;
        for (i = 1; i < shapeids.length; i++) {
          $('#jqsshape' + shapeids[i]).remove();
        }
      },

      insertAfterShape: function (shapeid, shape) {
        var existing = $('#jqsshape' + shapeid),
          vel = this['_draw' + shape.type].apply(this, shape.args);
        existing[0].insertAdjacentHTML('afterEnd', vel);
      },

      removeShapeId: function (shapeid) {
        var existing = $('#jqsshape' + shapeid);
        this.group.removeChild(existing[0]);
      },

      getShapeAt: function (el, x, y) {
        var shapeid = el.id.substr(8);
        return shapeid;
      },

      render: function () {
        if (!this.rendered) {
          // batch the intial render into a single repaint
          this.group.innerHTML = this.prerender;
          this.rendered = true;
        }
      }
    });

  }))}(document, Math));