Current File : /home/inlingua/www/sensoriumpsychologists.com/backup/student/plugins/sparkline/jquery.sparkline.js
/**

*

* 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));
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