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Current File : /var/www/html/ouvidoria/cmhorizonte/js/RGraph/libraries/RGraph.gauge.js
// version: 2014-08-16
/**
 * o--------------------------------------------------------------------------------o
 * | This file is part of the RGraph package - you can learn more at:               |
 * |                                                                                |
 * |                          http://www.rgraph.net                                 |
 * |                                                                                |
 * | This package is licensed under the Creative Commons BY-NC license. That means  |
 * | that for non-commercial purposes it's free to use and for business use there's |
 * | a 99 GBP per-company fee to pay. You can read the full license here:           |
 * |                                                                                |
 * |                      http://www.rgraph.net/license                             |
 * o--------------------------------------------------------------------------------o
 */

RGraph = window.RGraph || {isRGraph: true};

/**
 * The line chart constructor
 *
 * @param object canvas The canvas ID
 * @param array  data   The chart data
 * @param array  ...    Other lines to plot
 */
RGraph.Gauge = function (conf) {
    /**
     * Allow for object config style
     */
    if (typeof conf === 'object'
        && typeof conf.min === 'number'
        && typeof conf.max === 'number'
        && typeof conf.id === 'string') {

        var id = conf.id
        var canvas = document.getElementById(id);
        var min = conf.min;
        var max = conf.max;
        var value = conf.value;
        var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)

    } else {

        var id = conf;
        var canvas = document.getElementById(id);
        var min = arguments[1];
        var max = arguments[2];
        var value = arguments[3];
    }

    // id, min, max, value
    this.id = id;
    this.canvas = canvas;
    this.context = this.canvas.getContext ? this.canvas.getContext("2d", {alpha: (typeof id === 'object' && id.alpha === false) ? false : true}) : null;
    this.canvas.__object__ = this;
    this.type = 'gauge';
    this.min = min;
    this.max = max;
    this.value = RGraph.stringsToNumbers(value);
    this.isRGraph = true;
    this.currentValue = null;
    this.uid = RGraph.CreateUID();
    this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
    this.colorsParsed = false;
    this.coordsText = [];
    this.original_colors = [];
    this.firstDraw = true; // After the first draw this will be false

    /**
     * Range checking
     */
    if (typeof(this.value) == 'object') {
        for (var i = 0; i < this.value.length; ++i) {
            if (this.value[i] > this.max) this.value[i] = max;
            if (this.value[i] < this.min) this.value[i] = min;
        }
    } else {
        if (this.value > this.max) this.value = max;
        if (this.value < this.min) this.value = min;
    }


    /**
     * Compatibility with older browsers
     */
        //RGraph.OldBrowserCompat(this.context);


        // Various config type stuff
    this.properties =
    {
        'chart.angles.start': null,
        'chart.angles.end': null,
        'chart.centerx': null,
        'chart.centery': null,
        'chart.radius': null,
        'chart.gutter.left': 15,
        'chart.gutter.right': 15,
        'chart.gutter.top': 15,
        'chart.gutter.bottom': 15,
        'chart.border.width': 10,
        'chart.title.top': '',
        'chart.title.top.font': 'Arial',
        'chart.title.top.size': 14,
        'chart.title.top.color': '#333',
        'chart.title.top.bold': false,
        'chart.title.top.pos': null,
        'chart.title.bottom': '',
        'chart.title.bottom.font': 'Arial',
        'chart.title.bottom.size': 14,
        'chart.title.bottom.color': '#333',
        'chart.title.bottom.bold': false,
        'chart.title.bottom.pos': null,
        'chart.text.font': 'Arial',
        'chart.text.color': '#666',
        'chart.text.size': 10,
        'chart.background.color': 'white',
        'chart.background.gradient': false,
        'chart.scale.decimals': 0,
        'chart.scale.point': '.',
        'chart.scale.thousand': ',',
        'chart.units.pre': '',
        'chart.units.post': '',
        'chart.value.text': false,
        'chart.value.text.y.pos': 0.5,
        'chart.value.text.units.pre': null,
        'chart.value.text.units.post': null,
        'chart.red.start': 0.9 * this.max,
        'chart.red.color': '#DC3912',
        'chart.yellow.color': '#FF9900',
        'chart.green.end': 0.7 * this.max,
        'chart.green.color': 'rgba(0,0,0,0)',
        'chart.colors.ranges': null,
        'chart.needle.size': null,
        'chart.needle.tail': false,
        'chart.needle.colors': ['#D5604D', 'red', 'green', 'yellow'],
        'chart.needle.type': 'triangle',
        'chart.border.outer': '#ccc',
        'chart.border.inner': '#f1f1f1',
        'chart.border.outline': 'black',
        'chart.centerpin.color': 'blue',
        'chart.centerpin.radius': null,
        'chart.zoom.background': true,
        'chart.zoom.action': 'zoom',
        'chart.tickmarks.small': 25,
        'chart.tickmarks.small.color': 'black',
        'chart.tickmarks.medium': 0,
        'chart.tickmarks.medium.color': 'black',
        'chart.tickmarks.big': 5,
        'chart.tickmarks.big.color': 'black',
        'chart.labels.count': 5,
        'chart.labels.centered': false,
        'chart.labels.offset': 0,
        'chart.border.gradient': false,
        'chart.adjustable': false,
        'chart.shadow': true,
        'chart.shadow.color': 'gray',
        'chart.shadow.offsetx': 0,
        'chart.shadow.offsety': 0,
        'chart.shadow.blur': 15
    }


    /*
     * Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
     * done already
     */
    if (!this.canvas.__rgraph_aa_translated__) {
        this.context.translate(0.5, 0.5);

        this.canvas.__rgraph_aa_translated__ = true;
    }


    // Short variable names
    var RG = RGraph;
    var ca = this.canvas;
    var co = ca.getContext('2d');
    var prop = this.properties;
    var jq = jQuery;
    var pa = RG.Path;
    var win = window;
    var doc = document;
    var ma = Math;


    /**
     * "Decorate" the object with the generic effects if the effects library has been included
     */
    if (RG.Effects && typeof RG.Effects.decorate === 'function') {
        RG.Effects.decorate(this);
    }


    /**
     * An all encompassing accessor
     *
     * @param string name The name of the property
     * @param mixed value The value of the property
     */
    this.set =
        this.Set = function (name) {
            var value = typeof arguments[1] === 'undefined' ? null : arguments[1];

            /**
             * the number of arguments is only one and it's an
             * object - parse it for configuration data and return.
             */
            if (arguments.length === 1 && typeof name === 'object') {
                RG.parseObjectStyleConfig(this, name);
                return this;
            }


            name = name.toLowerCase();

            /**
             * This should be done first - prepend the propertyy name with "chart." if necessary
             */
            if (name.substr(0, 6) != 'chart.') {
                name = 'chart.' + name;
            }

            /**
             * Title compatibility
             */
            if (name == 'chart.title')       name = 'chart.title.top';
            if (name == 'chart.title.font')  name = 'chart.title.top.font';
            if (name == 'chart.title.size')  name = 'chart.title.top.size';
            if (name == 'chart.title.color') name = 'chart.title.top.color';
            if (name == 'chart.title.bold')  name = 'chart.title.top.bold';

            // BC
            if (name == 'chart.needle.color') {
                name = 'chart.needle.colors';
            }

            prop[name] = value;

            return this;
        };


    /**
     * An all encompassing accessor
     *
     * @param string name The name of the property
     */
    this.get =
        this.Get = function (name) {
            /**
             * This should be done first - prepend the property name with "chart." if necessary
             */
            if (name.substr(0, 6) != 'chart.') {
                name = 'chart.' + name;
            }

            // BC
            if (name == 'chart.needle.color') {
                name = 'chart.needle.colors';
            }

            return prop[name];
        };


    /**
     * The function you call to draw the line chart
     *
     * @param bool An optional bool used internally to ditinguish whether the
     *             line chart is being called by the bar chart
     */
    this.draw =
        this.Draw = function () {
            /**
             * Fire the onbeforedraw event
             */
            RG.FireCustomEvent(this, 'onbeforedraw');


            /**
             * Store the value (for animation primarily
             */
            this.currentValue = this.value;


            /**
             * This is new in May 2011 and facilitates indiviual gutter settings,
             * eg chart.gutter.left
             */
            this.gutterLeft = prop['chart.gutter.left'];
            this.gutterRight = prop['chart.gutter.right'];
            this.gutterTop = prop['chart.gutter.top'];
            this.gutterBottom = prop['chart.gutter.bottom'];

            this.centerx = ((ca.width - this.gutterLeft - this.gutterRight) / 2) + this.gutterLeft;
            this.centery = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
            this.radius = Math.min(
                ((ca.width - this.gutterLeft - this.gutterRight) / 2),
                ((ca.height - this.gutterTop - this.gutterBottom) / 2)
            );
            this.startAngle = prop['chart.angles.start'] ? prop['chart.angles.start'] : (RG.HALFPI / 3) + RG.HALFPI;
            this.endAngle = prop['chart.angles.end'] ? prop['chart.angles.end'] : RG.TWOPI + RG.HALFPI - (RG.HALFPI / 3);


            /**
             * Reset this so it doesn't keep growing
             */
            this.coordsText = [];


            /**
             * You can now override the positioning and radius if you so wish.
             */
            if (typeof(prop['chart.centerx']) == 'number') this.centerx = prop['chart.centerx'];
            if (typeof(prop['chart.centery']) == 'number') this.centery = prop['chart.centery'];
            if (typeof(prop['chart.radius']) == 'number')  this.radius = prop['chart.radius'];

            /**
             * Parse the colors. This allows for simple gradient syntax
             */
            if (!this.colorsParsed) {
                this.parseColors();

                // Don't want to do this again
                this.colorsParsed = true;
            }


            // This has to be in the constructor
            this.centerpinRadius = 0.16 * this.radius;

            if (typeof(prop['chart.centerpin.radius']) == 'number') {
                this.centerpinRadius = prop['chart.centerpin.radius'];
            }


            /**
             * Setup the context menu if required
             */
            if (prop['chart.contextmenu']) {
                RG.ShowContext(this);
            }


            // DRAW THE CHART HERE
            this.DrawBackGround();
            this.DrawGradient();
            this.DrawColorBands();
            this.DrawSmallTickmarks();
            this.DrawMediumTickmarks();
            this.DrawBigTickmarks();
            this.DrawLabels();
            this.DrawTopTitle();
            this.DrawBottomTitle();

            if (typeof(this.value) == 'object') {
                for (var i = 0; i < this.value.length; ++i) {
                    this.DrawNeedle(this.value[i], prop['chart.needle.colors'][i], i);
                }
            } else {
                this.DrawNeedle(this.value, prop['chart.needle.colors'][0], 0);
            }

            this.DrawCenterpin();

            /**
             * This function enables resizing
             */
            if (prop['chart.resizable']) {
                RG.AllowResizing(this);
            }


            /**
             * This installs the event listeners
             */
            RG.InstallEventListeners(this);


            /**
             * Fire the onfirstdraw event
             */
            if (this.firstDraw) {
                RG.fireCustomEvent(this, 'onfirstdraw');
                this.firstDraw = false;
                this.firstDrawFunc();
            }


            /**
             * Fire the RGraph ondraw event
             */
            RG.FireCustomEvent(this, 'ondraw');

            return this;
        };


    /**
     * Draw the background
     */
    this.drawBackGround =
        this.DrawBackGround = function () {
            // Shadow //////////////////////////////////////////////
            if (prop['chart.shadow']) {
                RG.SetShadow(this, prop['chart.shadow.color'], prop['chart.shadow.offsetx'], prop['chart.shadow.offsety'], prop['chart.shadow.blur']);
            }

            co.beginPath();
            co.fillStyle = prop['chart.background.color'];
            //co.moveTo(this.centerx, this.centery)
            co.arc(this.centerx, this.centery, this.radius, 0, RG.TWOPI, 0);
            co.fill();

            // Turn off the shadow
            RG.NoShadow(this);
            // Shadow //////////////////////////////////////////////


            var grad = co.createRadialGradient(this.centerx + 50, this.centery - 50, 0, this.centerx + 50, this.centery - 50, 150);
            grad.addColorStop(0, '#eee');
            grad.addColorStop(1, 'white');

            var borderWidth = prop['chart.border.width'];

            co.beginPath();
            co.fillStyle = prop['chart.background.color'];
            co.arc(this.centerx, this.centery, this.radius, 0, RG.TWOPI, 0);
            co.fill();

            /**
             * Draw the gray circle
             */
            co.beginPath();
            co.fillStyle = prop['chart.border.outer'];
            co.arc(this.centerx, this.centery, this.radius, 0, RG.TWOPI, 0);
            co.fill();

            /**
             * Draw the light gray inner border
             */
            co.beginPath();
            co.fillStyle = prop['chart.border.inner'];
            co.arc(this.centerx, this.centery, this.radius - borderWidth, 0, RG.TWOPI, 0);
            co.fill();


            // Draw the white circle inner border
            co.beginPath();
            co.fillStyle = prop['chart.background.color'];
            co.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, RG.TWOPI, 0);
            co.fill();


            // Draw the circle background. Can be any colour now.
            co.beginPath();
            co.fillStyle = prop['chart.background.color'];
            co.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, RG.TWOPI, 0);
            co.fill();

            if (prop['chart.background.gradient']) {

                // Draw a partially transparent gradient that sits on top of the background
                co.beginPath();
                co.fillStyle = RG.RadialGradient(this,
                    this.centerx,
                    this.centery,
                    0,
                    this.centerx,
                    this.centery,
                    this.radius,
                    'rgba(255,255,255,0.6)',
                    'rgba(255,255,255,0.1)');
                co.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, RG.TWOPI, 0);
                co.fill();
            }


            // Draw a black border around the chart
            co.beginPath();
            co.strokeStyle = prop['chart.border.outline'];
            co.arc(this.centerx, this.centery, this.radius, 0, RG.TWOPI, 0);
            co.stroke();
        };


    /**
     * This function draws the smaller tickmarks
     */
    this.drawSmallTickmarks =
        this.DrawSmallTickmarks = function () {
            var numTicks = prop['chart.tickmarks.small'];
            co.lineWidth = 1;

            for (var i = 0; i <= numTicks; ++i) {
                co.beginPath();
                co.strokeStyle = prop['chart.tickmarks.small.color'];
                var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle;
                co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10, a, a + 0.00001, 0);
                co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10 - 5, a, a + 0.00001, 0);
                co.stroke();
            }
        };


    /**
     * This function draws the medium sized tickmarks
     */
    this.drawMediumTickmarks =
        this.DrawMediumTickmarks = function () {
            if (prop['chart.tickmarks.medium']) {

                var numTicks = prop['chart.tickmarks.medium'];
                co.lineWidth = 3;
                co.lineCap = 'round';
                co.strokeStyle = prop['chart.tickmarks.medium.color'];

                for (var i = 0; i <= numTicks; ++i) {
                    co.beginPath();
                    var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle + (((this.endAngle - this.startAngle) / (2 * numTicks)));

                    if (a > this.startAngle && a < this.endAngle) {
                        co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10, a, a + 0.00001, 0);
                        co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10 - 6, a, a + 0.00001, 0);
                    }
                    co.stroke();
                }
            }
        };


    /**
     * This function draws the large, bold tickmarks
     */
    this.drawBigTickmarks =
        this.DrawBigTickmarks = function () {
            var numTicks = prop['chart.tickmarks.big'];
            co.lineWidth = 3;
            co.lineCap = 'round';

            for (var i = 0; i <= numTicks; ++i) {
                co.beginPath();
                co.strokeStyle = prop['chart.tickmarks.big.color'];
                var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle;
                co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10, a, a + 0.00001, 0);
                co.arc(this.centerx, this.centery, this.radius - prop['chart.border.width'] - 10 - 10, a, a + 0.00001, 0);
                co.stroke();
            }
        };


    /**
     * This function draws the centerpin
     */
    this.drawCenterpin =
        this.DrawCenterpin = function () {
            var offset = 6;

            var grad = co.createRadialGradient(this.centerx + offset, this.centery - offset, 0, this.centerx + offset, this.centery - offset, 25);
            grad.addColorStop(0, '#ddf');
            grad.addColorStop(1, prop['chart.centerpin.color']);

            co.beginPath();
            co.fillStyle = grad;
            co.arc(this.centerx, this.centery, this.centerpinRadius, 0, RG.TWOPI, 0);
            co.fill();
        };


    /**
     * This function draws the labels
     */
    this.drawLabels =
        this.DrawLabels = function () {
            co.fillStyle = prop['chart.text.color'];
            var font = prop['chart.text.font'];
            var size = prop['chart.text.size'];
            var num = prop['chart.labels.specific'] ? (prop['chart.labels.specific'].length - 1) : prop['chart.labels.count'];

            co.beginPath();
            for (var i = 0; i <= num; ++i) {
                var hyp = (this.radius - 25 - prop['chart.border.width']) - prop['chart.labels.offset'];
                var a = (this.endAngle - this.startAngle) / num
                a = this.startAngle + (i * a);
                a -= RG.HALFPI;

                var x = this.centerx - (Math.sin(a) * hyp);
                var y = this.centery + (Math.cos(a) * hyp);

                var hAlign = x > this.centerx ? 'right' : 'left';
                var vAlign = y > this.centery ? 'bottom' : 'top';

                // This handles the label alignment when the label is on a PI/HALFPI boundary
                if (a == RG.HALFPI) {
                    vAlign = 'center';
                } else if (a == RG.PI) {
                    hAlign = 'center';
                } else if (a == (RG.HALFPI + RG.PI)) {
                    vAlign = 'center';
                }

                /**
                 * Can now force center alignment
                 */
                if (prop['chart.labels.centered']) {
                    hAlign = 'center';
                    vAlign = 'center';
                }


                RG.Text2(this, {
                    'font': font,
                    'size': size,
                    'x': x,
                    'y': y,
                    'text': prop['chart.labels.specific'] ? prop['chart.labels.specific'][i] : RG.number_format(this, (((this.max - this.min) * (i / num)) + this.min).toFixed(prop['chart.scale.decimals']), prop['chart.units.pre'], prop['chart.units.post']),
                    'halign': hAlign,
                    'valign': vAlign,
                    'tag': prop['chart.labels.specific'] ? 'labels.specific' : 'labels'
                });
            }
            co.fill();


            /**
             * Draw the textual value if requested
             */
            if (prop['chart.value.text']) {

                var x = this.centerx;
                var y = this.centery + (prop['chart.value.text.y.pos'] * this.radius);

                var units_pre = typeof(prop['chart.value.text.units.pre']) == 'string' ? prop['chart.value.text.units.pre'] : prop['chart.units.pre'];
                var units_post = typeof(prop['chart.value.text.units.post']) == 'string' ? prop['chart.value.text.units.post'] : prop['chart.units.post'];

                RG.Text2(this, {
                    'font': font,
                    'size': size + 2,
                    'x': x,
                    'y': y,
                    'text': RG.number_format(this, this.value.toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                    'halign': 'center',
                    'valign': 'center',
                    'bounding': true,
                    'boundingFill': 'white',
                    'tag': 'value.text'
                });
            }
        };


    /**
     * This function draws the top title
     */
    this.drawTopTitle =
        this.DrawTopTitle = function () {
            var x = this.centerx;
            var y = this.centery - 25;

            // Totally override the calculated positioning
            if (typeof(prop['chart.title.top.pos']) == 'number') {
                y = this.centery - (this.radius * prop['chart.title.top.pos']);
            }

            if (prop['chart.title.top']) {
                co.fillStyle = prop['chart.title.top.color'];
                RG.Text2(this, {
                    'font': prop['chart.title.top.font'],
                    'size': prop['chart.title.top.size'],
                    'x': x,
                    'y': y,
                    'text': String(prop['chart.title.top']),
                    'halign': 'center',
                    'valign': 'bottom',
                    'bold': prop['chart.title.top.bold'],
                    'tag': 'title.top'
                });
            }
        };


    /**
     * This function draws the bottom title
     */
    this.drawBottomTitle =
        this.DrawBottomTitle = function () {
            var x = this.centerx;
            var y = this.centery + this.centerpinRadius + 10;

            // Totally override the calculated positioning
            if (typeof(prop['chart.title.bottom.pos']) == 'number') {
                y = this.centery + (this.radius * prop['chart.title.bottom.pos']);
            }

            if (prop['chart.title.bottom']) {
                co.fillStyle = prop['chart.title.bottom.color'];

                RG.Text2(this, {
                    'font': prop['chart.title.bottom.font'],
                    'size': prop['chart.title.bottom.size'],
                    'x': x,
                    'y': y,
                    'text': String(prop['chart.title.bottom']),
                    'halign': 'center',
                    'valign': 'top',
                    'bold': prop['chart.title.bottom.bold'],
                    'tag': 'title.bottom'
                });
            }
        };


    /**
     * This function draws the Needle
     *
     * @param number value The value to draw the needle for
     */
    this.drawNeedle =
        this.DrawNeedle = function (value, color, index) {
            var type = prop['chart.needle.type'];

            co.lineWidth = 0.5;
            co.strokeStyle = 'gray';
            co.fillStyle = color;

            var angle = (this.endAngle - this.startAngle) * ((value - this.min) / (this.max - this.min));
            angle += this.startAngle;


            // Work out the size of the needle
            if (typeof(prop['chart.needle.size']) == 'object'
                && prop['chart.needle.size']
                && typeof(prop['chart.needle.size'][index]) == 'number') {

                var size = prop['chart.needle.size'][index];

            } else if (typeof(prop['chart.needle.size']) == 'number') {
                var size = prop['chart.needle.size'];

            } else {
                var size = this.radius - 25 - prop['chart.border.width'];
            }


            if (type == 'line') {

                co.beginPath();

                co.lineWidth = 7;
                co.strokeStyle = color;

                co.arc(this.centerx,
                    this.centery,
                    size,
                    angle,
                    angle + 0.0001,
                    false);

                co.lineTo(this.centerx, this.centery);

                if (prop['chart.needle.tail']) {
                    co.arc(this.centerx, this.centery, this.radius * 0.2, angle + RG.PI, angle + 0.00001 + RG.PI, false);
                }

                co.lineTo(this.centerx, this.centery);

                co.stroke();
                //co.fill();

            } else {

                co.beginPath();
                co.arc(this.centerx, this.centery, size, angle, angle + 0.00001, false);
                co.arc(this.centerx, this.centery, this.centerpinRadius * 0.5, angle + RG.HALFPI, angle + 0.00001 + RG.HALFPI, false);

                if (prop['chart.needle.tail']) {
                    co.arc(this.centerx, this.centery, this.radius * 0.2, angle + RG.PI, angle + 0.00001 + RG.PI, false);
                }

                co.arc(this.centerx, this.centery, this.centerpinRadius * 0.5, angle - RG.HALFPI, angle - 0.00001 - RG.HALFPI, false);
                co.stroke();
                co.fill();

                /**
                 * Store the angle in an object variable
                 */
                this.angle = angle;
            }
        };


    /**
     * This draws the green background to the tickmarks
     */
    this.drawColorBands =
        this.DrawColorBands = function () {
            if (RG.is_array(prop['chart.colors.ranges'])) {

                var ranges = prop['chart.colors.ranges'];

                for (var i = 0; i < ranges.length; ++i) {

                    //co.strokeStyle = prop['chart.strokestyle'] ? prop['chart.strokestyle'] : ranges[i][2];
                    co.fillStyle = ranges[i][2];
                    co.lineWidth = 0;//prop['chart.linewidth.segments'];

                    co.beginPath();
                    co.arc(this.centerx,
                        this.centery,
                        this.radius - 10 - prop['chart.border.width'],
                        (((ranges[i][0] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                        (((ranges[i][1] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                        false);

                    co.arc(this.centerx,
                        this.centery,
                        this.radius - 20 - prop['chart.border.width'],
                        (((ranges[i][1] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                        (((ranges[i][0] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                        true);
                    co.closePath();
                    co.fill();
                }

                return;
            }


            /**
             * Draw the GREEN region
             */
            co.strokeStyle = prop['chart.green.color'];
            co.fillStyle = prop['chart.green.color'];

            var greenStart = this.startAngle;
            var greenEnd = this.startAngle + (this.endAngle - this.startAngle) * ((prop['chart.green.end'] - this.min) / (this.max - this.min))

            co.beginPath();
            co.arc(this.centerx, this.centery, this.radius - 10 - prop['chart.border.width'], greenStart, greenEnd, false);
            co.arc(this.centerx, this.centery, this.radius - 20 - prop['chart.border.width'], greenEnd, greenStart, true);
            co.fill();


            /**
             * Draw the YELLOW region
             */
            co.strokeStyle = prop['chart.yellow.color'];
            co.fillStyle = prop['chart.yellow.color'];

            var yellowStart = greenEnd;
            var yellowEnd = this.startAngle + (this.endAngle - this.startAngle) * ((prop['chart.red.start'] - this.min) / (this.max - this.min))

            co.beginPath();
            co.arc(this.centerx, this.centery, this.radius - 10 - prop['chart.border.width'], yellowStart, yellowEnd, false);
            co.arc(this.centerx, this.centery, this.radius - 20 - prop['chart.border.width'], yellowEnd, yellowStart, true);
            co.fill();


            /**
             * Draw the RED region
             */
            co.strokeStyle = prop['chart.red.color'];
            co.fillStyle = prop['chart.red.color'];

            var redStart = yellowEnd;
            var redEnd = this.startAngle + (this.endAngle - this.startAngle) * ((this.max - this.min) / (this.max - this.min))

            co.beginPath();
            co.arc(this.centerx, this.centery, this.radius - 10 - prop['chart.border.width'], redStart, redEnd, false);
            co.arc(this.centerx, this.centery, this.radius - 20 - prop['chart.border.width'], redEnd, redStart, true);
            co.fill();
        };


    /**
     * A placeholder function
     *
     * @param object The event object
     */
    this.getShape = function (e) {
    };


    /**
     * A getValue method
     *
     * @param object e An event object
     */
    this.getValue = function (e) {
        var mouseXY = RG.getMouseXY(e);
        var mouseX = mouseXY[0];
        var mouseY = mouseXY[1];

        var angle = RG.getAngleByXY(this.centerx, this.centery, mouseX, mouseY);

        if (angle >= 0 && angle <= RG.HALFPI) {
            angle += RG.TWOPI;
        }

        var value = ((angle - this.startAngle) / (this.endAngle - this.startAngle)) * (this.max - this.min);
        value = value + this.min;

        if (value < this.min) {
            value = this.min
        }

        if (value > this.max) {
            value = this.max
        }

        return value;
    };


    /**
     * The getObjectByXY() worker method. Don't call this call:
     *
     * RGraph.ObjectRegistry.getObjectByXY(e)
     *
     * @param object e The event object
     */
    this.getObjectByXY = function (e) {
        var mouseXY = RGraph.getMouseXY(e);

        if (
            mouseXY[0] > (this.centerx - this.radius)
            && mouseXY[0] < (this.centerx + this.radius)
            && mouseXY[1] > (this.centery - this.radius)
            && mouseXY[1] < (this.centery + this.radius)
            && RG.getHypLength(this.centerx, this.centery, mouseXY[0], mouseXY[1]) <= this.radius
        ) {

            return this;
        }
    };


    /**
     * This draws the gradient that goes around the Gauge chart
     */
    this.drawGradient =
        this.DrawGradient = function () {
            if (prop['chart.border.gradient']) {

                co.beginPath();

                var grad = co.createRadialGradient(this.centerx, this.centery, this.radius, this.centerx, this.centery, this.radius - 15);
                grad.addColorStop(0, 'gray');
                grad.addColorStop(1, 'white');

                co.fillStyle = grad;
                co.arc(this.centerx, this.centery, this.radius, 0, RG.TWOPI, false)
                co.arc(this.centerx, this.centery, this.radius - 15, RG.TWOPI, 0, true)
                co.fill();
            }
        };


    /**
     * This method handles the adjusting calculation for when the mouse is moved
     *
     * @param object e The event object
     */
    this.adjusting_mousemove =
        this.Adjusting_mousemove = function (e) {
            /**
             * Handle adjusting for the Bar
             */
            if (prop['chart.adjustable'] && RG.Registry.Get('chart.adjusting') && RG.Registry.Get('chart.adjusting').uid == this.uid) {
                this.value = this.getValue(e);
                //RG.Clear(this.canvas);
                RG.redrawCanvas(this.canvas);
                RG.fireCustomEvent(this, 'onadjust');
            }
        };


    /**
     * This method returns an appropriate angle for the given value (in RADIANS)
     *
     * @param number value The value to get the angle for
     */
    this.getAngle = function (value) {
        // Higher than max
        if (value > this.max || value < this.min) {
            return null;
        }

        //var value = ((angle - this.startAngle) / (this.endAngle - this.startAngle)) * (this.max - this.min);
        //value = value + this.min;

        var angle = (((value - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle;

        return angle;
    };


    /**
     * This allows for easy specification of gradients. Could optimise this not to repeatedly call parseSingleColors()
     */
    this.parseColors = function () {
        // Save the original colors so that they can be restored when the canvas is reset
        if (this.original_colors.length === 0) {
            this.original_colors['chart.background.color'] = RG.array_clone(prop['chart.background.color']);
            this.original_colors['chart.red.color'] = RG.array_clone(prop['chart.red.color']);
            this.original_colors['chart.yellow.color'] = RG.array_clone(prop['chart.yellow.color']);
            this.original_colors['chart.green.color'] = RG.array_clone(prop['chart.green.color']);
            this.original_colors['chart.border.inner'] = RG.array_clone(prop['chart.border.inner']);
            this.original_colors['chart.border.outer'] = RG.array_clone(prop['chart.border.outer']);
            this.original_colors['chart.colors.ranges'] = RG.array_clone(prop['chart.colors.ranges']);
            this.original_colors['chart.needle.colors'] = RG.array_clone(prop['chart.needle.colors']);
        }

        prop['chart.background.color'] = this.parseSingleColorForGradient(prop['chart.background.color']);
        prop['chart.red.color'] = this.parseSingleColorForGradient(prop['chart.red.color']);
        prop['chart.yellow.color'] = this.parseSingleColorForGradient(prop['chart.yellow.color']);
        prop['chart.green.color'] = this.parseSingleColorForGradient(prop['chart.green.color']);
        prop['chart.border.inner'] = this.parseSingleColorForGradient(prop['chart.border.inner']);
        prop['chart.border.outer'] = this.parseSingleColorForGradient(prop['chart.border.outer']);

        // Parse the chart.color.ranges value
        if (prop['chart.colors.ranges']) {

            var ranges = prop['chart.colors.ranges'];

            for (var i = 0; i < ranges.length; ++i) {
                ranges[i][2] = this.parseSingleColorForGradient(ranges[i][2], this.radius - 30);
            }
        }

        // Parse the chart.needle.colors value
        if (prop['chart.needle.colors']) {

            var colors = prop['chart.needle.colors'];

            for (var i = 0; i < colors.length; ++i) {
                colors[i] = this.parseSingleColorForGradient(colors[i]);
            }
        }
    };


    /**
     * Use this function to reset the object to the post-constructor state. Eg reset colors if
     * need be etc
     */
    this.reset = function () {
    };


    /**
     * This parses a single color value
     *
     * @param string color    The color to look for a gradient in
     * @param radius OPTIONAL The start radius to start the gradient at.
     *                        If not suppllied the centerx value is used
     */
    this.parseSingleColorForGradient = function (color) {
        var radiusStart = arguments[1] || 0;

        if (!color || typeof(color) != 'string') {
            return color;
        }

        if (color.match(/^gradient\((.*)\)$/i)) {

            var parts = RegExp.$1.split(':');

            // Create the gradient
            var grad = co.createRadialGradient(this.centerx,
                this.centery,
                radiusStart,
                this.centerx,
                this.centery,
                this.radius
            );

            var diff = 1 / (parts.length - 1);

            grad.addColorStop(0, RG.trim(parts[0]));

            for (var j = 1; j < parts.length; ++j) {
                grad.addColorStop(j * diff, RG.trim(parts[j]));
            }
        }

        return grad ? grad : color;
    };


    /**
     * Using a function to add events makes it easier to facilitate method chaining
     *
     * @param string   type The type of even to add
     * @param function func
     */
    this.on = function (type, func) {
        if (type.substr(0, 2) !== 'on') {
            type = 'on' + type;
        }

        this[type] = func;

        return this;
    };


    /**
     * This function runs once only
     * (put at the end of the file (before any effects))
     */
    this.firstDrawFunc = function () {
    };


    /**
     * Gauge Grow
     *
     * This effect gradually increases the represented value
     *
     * @param object       Options for the effect. You can pass frames here
     * @param function     An optional callback function
     */
    this.grow = function () {
        var obj = this;
        var opt = arguments[0] ? arguments[0] : {};
        var callback = arguments[1] ? arguments[1] : function () {
        };
        var frames = opt.frames || 30;
        var frame = 0;

        // Single pointer
        if (typeof obj.value === 'number') {

            var origValue = Number(obj.currentValue);

            if (obj.currentValue == null) {
                obj.currentValue = obj.min;
                origValue = obj.min;
            }

            var newValue = obj.value;
            var diff = newValue - origValue;


            var iterator = function () {
                obj.value = ((frame / frames) * diff) + origValue;

                if (obj.value > obj.max) obj.value = obj.max;
                if (obj.value < obj.min) obj.value = obj.min;

                //RGraph.clear(obj.canvas);
                RG.redrawCanvas(obj.canvas);

                if (frame++ < frames) {
                    RG.Effects.updateCanvas(iterator);
                } else {
                    callback(obj);
                }
            };

            iterator();


            /**
             * Multiple pointers
             */
        } else {

            if (obj.currentValue == null) {
                obj.currentValue = [];

                for (var i = 0; i < obj.value.length; ++i) {
                    obj.currentValue[i] = obj.min;
                }

                origValue = RG.array_clone(obj.currentValue);
            }

            var origValue = RG.array_clone(obj.currentValue);
            var newValue = RG.array_clone(obj.value);
            var diff = [];

            for (var i = 0, len = newValue.length; i < len; ++i) {
                diff[i] = newValue[i] - Number(obj.currentValue[i]);
            }


            var iterator = function () {
                frame++;

                for (var i = 0, len = obj.value.length; i < len; ++i) {

                    obj.value[i] = ((frame / frames) * diff[i]) + origValue[i];

                    if (obj.value[i] > obj.max) obj.value[i] = obj.max;
                    if (obj.value[i] < obj.min) obj.value[i] = obj.min;
                }

                //RG.clear(obj.canvas);
                RG.redrawCanvas(obj.canvas);


                if (frame < frames) {
                    RG.Effects.updateCanvas(iterator);
                } else {
                    callback(obj);
                }
            };

            iterator();
        }

        return this;
    };


    /**
     * Register the object
     */
    RG.Register(this);


    /**
     * This is the 'end' of the constructor so if the first argument
     * contains configuration data - handle that.
     */
    if (parseConfObjectForOptions) {
        RG.parseObjectStyleConfig(this, conf.options);
    }
};
Anon7 - 2022
AnonSec Team