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Current File : /var/www/html/ouvidoria/cmhorizonte/js/RGraph/libraries/RGraph.thermometer.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 chart constructor. This function sets up the object. It takes the ID (the HTML attribute) of the canvas as the
 * first argument and the data as the second. If you need to change this, you can.
 *
 * NB: If tooltips are ever implemented they must go below the use event listeners!!
 *
 * @param string id    The canvas tag ID
 * @param number min   The minimum value
 * @param number max   The maximum value
 * @param number value The value reported by the thermometer
 */
RGraph.Thermometer = function (conf) {
    /**
     * Allow for object config style
     */
    if (typeof conf === 'object'
        && typeof conf.min === 'number'
        && typeof conf.max === 'number'
        && typeof conf.id === 'string') {

        var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)

    } else {

        var conf = {
            id: arguments[0],
            min: arguments[1],
            max: arguments[2],
            value: arguments[3]
        }
    }


    this.id = conf.id;
    this.canvas = document.getElementById(this.id);
    this.context = this.canvas.getContext ? this.canvas.getContext('2d') : null;
    this.canvas.__object__ = this;
    this.uid = RGraph.CreateUID();
    this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
    this.colorsParsed = false;
    this.type = 'thermometer';
    this.isRGraph = true;
    this.min = conf.min;
    this.max = conf.max;
    this.value = RGraph.stringsToNumbers(conf.value);
    this.coords = [];
    this.graphArea = [];
    this.currentValue = null;
    this.bulbRadius = 0;
    this.bulbTopRadius = 0;
    this.bulbTopCenterX = 0
    this.bulbTopCenterY = 0;
    this.coordsText = [];
    this.original_colors = [];
    this.firstDraw = true; // After the first draw this will be false


    this.properties =
    {
        'chart.colors': ['Gradient(#c00:red:#f66:#fcc)'],
        'chart.gutter.left': 15,
        'chart.gutter.right': 15,
        'chart.gutter.top': 15,
        'chart.gutter.bottom': 15,
        'chart.ticksize': 5,
        'chart.text.color': 'black',
        'chart.text.font': 'Arial',
        'chart.text.size': 10,
        'chart.units.pre': '',
        'chart.units.post': '',
        'chart.zoom.factor': 1.5,
        'chart.zoom.fade.in': true,
        'chart.zoom.fade.out': true,
        'chart.zoom.hdir': 'right',
        'chart.zoom.vdir': 'down',
        'chart.zoom.frames': 25,
        'chart.zoom.delay': 16.666,
        'chart.zoom.shadow': true,
        'chart.zoom.background': true,
        'chart.title': '',
        'chart.title.side': '',
        'chart.title.side.bold': true,
        'chart.title.side.font': null,
        'chart.shadow': true,
        'chart.shadow.offsetx': 0,
        'chart.shadow.offsety': 0,
        'chart.shadow.blur': 15,
        'chart.shadow.color': 'gray',
        'chart.resizable': false,
        'chart.contextmenu': null,
        'chart.adjustable': false,
        'chart.value.label': true,
        'chart.value.label.decimals': null,
        'chart.value.label.thousand': ',',
        'chart.value.label.point': '.',
        'chart.labels.count': 5,
        'chart.scale.visible': false,
        'chart.scale.decimals': 0,
        'chart.annotatable': false,
        'chart.annotate.color': 'black',
        'chart.scale.decimals': 0,
        'chart.scale.point': '.',
        'chart.scale.thousand': ',',
        'chart.tooltips': null,
        'chart.tooltips.highlight': true,
        'chart.tooltips.effect': 'fade',
        'chart.tooltips.event': 'onclick',
        'chart.highlight.stroke': 'rgba(0,0,0,0)',
        'chart.highlight.fill': 'rgba(255,255,255,0.7)'
    }


    /**
     * A simple check that the browser has canvas support
     */
    if (!this.canvas) {
        alert('[THERMOMETER] No canvas support');
        return;
    }

    /**
     * The thermometer can only have one data point so only this.$0 needs to be created
     */
    this.$0 = {}


    /**
     * 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);
    }


    /**
     * A setter.
     *
     * @param name  string The name of the property to set
     * @param value mixed  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;
            }


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

            /**
             * Change of name
             */
            if (name == 'chart.ylabels.count') {
                name = 'chart.labels.count';
            }

            prop[name.toLowerCase()] = value;

            return this;
        };


    /**
     * A getter.
     *
     * @param name  string The name of the property to get
     */
    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;
            }

            return prop[name];
        };


    /**
     * Draws the thermometer
     */
    this.draw =
        this.Draw = function () {
            /**
             * Fire the custom RGraph onbeforedraw event (which should be fired before the chart is drawn)
             */
            RG.FireCustomEvent(this, 'onbeforedraw');

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

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

            /**
             * Set the current value
             */
            this.currentValue = this.value;


            /**
             * Stop this growing uncontrollably
             */
            this.coordsText = [];


            /**
             * 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'];

            /**
             * Get the scale
             */
            this.scale2 = RG.getScale2(this, {
                'max': this.max,
                'min': this.min,
                'strict': true,
                'scale.thousand': prop['chart.scale.thousand'],
                'scale.point': prop['chart.scale.point'],
                'scale.decimals': prop['chart.scale.decimals'],
                'ylabels.count': prop['chart.labels.count'],
                'scale.round': prop['chart.scale.round'],
                'units.pre': prop['chart.units.pre'],
                'units.post': prop['chart.units.post']
            });


            /**
             * Draw the background
             */
            this.DrawBackground();

            /**
             * Draw the bar that represents the value
             */
            this.DrawBar();


            /**
             * Draw the tickmarks/hatchmarks
             */
            this.DrawTickMarks();


            /**
             * Draw the label
             */
            this.DrawLabels();


            /**
             * Draw the title
             */
            if (prop['chart.title']) {
                this.DrawTitle();
            }

            /**
             * Draw the side title
             */
            if (prop['chart.title.side']) {
                this.DrawSideTitle();
            }

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


            /**
             * Setup the context menu if required
             */
            if (prop['chart.contextmenu']) {
                RG.ShowContext(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 custom RGraph ondraw event (which should be fired when you have drawn the chart)
             */
            RG.FireCustomEvent(this, 'ondraw');

            return this;
        };


    /**
     * Draws the thermometer itself
     */
    this.drawBackground =
        this.DrawBackground = function () {
            var bulbRadius = (ca.width - this.gutterLeft - this.gutterRight) / 2;

            // This is the radius/x/y of the top "semi-circle"
            this.bulbTopRadius = (ca.width - this.gutterLeft - this.gutterRight - 24) / 2
            this.bulbTopCenterX = this.gutterLeft + bulbRadius;
            this.bulbTopCenterY = this.gutterTop + bulbRadius;

            //This is the radius/x/y of the bottom bulb
            this.bulbBottomRadius = bulbRadius;
            this.bulbBottomCenterX = this.gutterLeft + bulbRadius;
            this.bulbBottomCenterY = ca.height - this.gutterBottom - bulbRadius;

            // Save the bulbRadius as an object variable
            this.bulbRadius = bulbRadius;

            // Draw the black background that becomes the border
            co.beginPath();
            co.fillStyle = 'black';

            if (prop['chart.shadow']) {
                RG.SetShadow(this, prop['chart.shadow.color'], prop['chart.shadow.offsetx'], prop['chart.shadow.offsety'], prop['chart.shadow.blur']);
            }

            co.fillRect(this.gutterLeft + 12, this.gutterTop + bulbRadius, ca.width - this.gutterLeft - this.gutterRight - 24, ca.height - this.gutterTop - this.gutterBottom - bulbRadius - bulbRadius);

            // Bottom bulb
            co.arc(this.bulbBottomCenterX, this.bulbBottomCenterY, bulbRadius, 0, RG.TWOPI, 0);

            // Top bulb (which is actually a semi-circle)
            co.arc(this.bulbTopCenterX, this.bulbTopCenterY, this.bulbTopRadius, 0, RG.TWOPI, 0);
            co.fill();

            // Save the radius of the top semi circle


            RG.NoShadow(this);

            // Draw the white inner content background that creates the border
            co.beginPath();
            co.fillStyle = 'white';
            co.fillRect(this.gutterLeft + 12 + 1, this.gutterTop + bulbRadius, ca.width - this.gutterLeft - this.gutterRight - 24 - 2, ca.height - this.gutterTop - this.gutterBottom - bulbRadius - bulbRadius);
            co.arc(this.gutterLeft + bulbRadius, ca.height - this.gutterBottom - bulbRadius, bulbRadius - 1, 0, RG.TWOPI, 0);
            co.arc(this.gutterLeft + bulbRadius, this.gutterTop + bulbRadius, ((ca.width - this.gutterLeft - this.gutterRight - 24) / 2) - 1, 0, RG.TWOPI, 0);
            co.fill();

            // Draw the bottom content of the thermometer
            co.beginPath();
            co.fillStyle = prop['chart.colors'][0];
            co.arc(this.gutterLeft + bulbRadius, ca.height - this.gutterBottom - bulbRadius, bulbRadius - 1, 0, RG.TWOPI, 0);
            co.rect(this.gutterLeft + 12 + 1, ca.height - this.gutterBottom - bulbRadius - bulbRadius, ca.width - this.gutterLeft - this.gutterRight - 24 - 2, bulbRadius);
            co.fill();


            // Save the X/Y/width/height
            this.graphArea[0] = this.gutterLeft + 12 + 1;
            this.graphArea[1] = this.gutterTop + bulbRadius;
            this.graphArea[2] = ca.width - this.gutterLeft - this.gutterRight - 24 - 2;
            this.graphArea[3] = (ca.height - this.gutterBottom - bulbRadius - bulbRadius) - (this.graphArea[1]);
        };


    /**
     * This draws the bar that indicates the value of the thermometer
     */
    this.drawBar =
        this.DrawBar = function () {
            var barHeight = ((this.value - this.min) / (this.max - this.min)) * this.graphArea[3];

            // Draw the actual bar that indicates the value
            co.beginPath();
            co.fillStyle = prop['chart.colors'][0];

            // This solves an issue with ExCanvas showing a whiite cutout in the chart
            if (RGraph.ISOLD) {
                co.arc(this.bulbBottomCenterX, this.bulbBottomCenterY, this.bulbBottomRadius - 1, 0, RG.TWOPI, false)
            }


            co.rect(this.graphArea[0],
                this.graphArea[1] + this.graphArea[3] - barHeight,
                this.graphArea[2],
                barHeight + 2);
            co.fill();

            this.coords[0] = [this.graphArea[0], this.graphArea[1] + this.graphArea[3] - barHeight, this.graphArea[2], barHeight];
        };


    /**
     * Draws the tickmarks of the thermometer
     */
    this.drawTickMarks =
        this.DrawTickMarks = function () {
            co.strokeStyle = 'black'
            var ticksize = prop['chart.ticksize'];

            // Left hand side tickmarks
            co.beginPath();
            for (var i = this.graphArea[1]; i <= (this.graphArea[1] + this.graphArea[3]); i += (this.graphArea[3] / 10)) {
                co.moveTo(this.gutterLeft + 12, Math.round(i));
                co.lineTo(this.gutterLeft + 12 + ticksize, Math.round(i));
            }
            co.stroke();

            // Right hand side tickmarks
            co.beginPath();
            for (var i = this.graphArea[1]; i <= (this.graphArea[1] + this.graphArea[3]); i += (this.graphArea[3] / 10)) {
                co.moveTo(ca.width - (this.gutterRight + 12), Math.round(i));
                co.lineTo(ca.width - (this.gutterRight + 12 + ticksize), Math.round(i));
            }
            co.stroke();
        };


    /**
     * Draws the labels of the thermometer. Now (4th August 2011) draws
     * the scale too
     */
    this.drawLabels =
        this.DrawLabels = function () {
            /**
             * This draws draws the label that sits at the top of the chart
             */
            if (prop['chart.value.label']) {
                co.fillStyle = prop['chart.text.color'];

                // Weird...
                var text = prop['chart.scale.visible'] ? RG.number_format(this,
                    this.value.toFixed(typeof prop['chart.value.label.decimals'] == 'number' ? prop['chart.value.label.decimals'] : prop['chart.scale.decimals'])
                )
                    :
                    RG.number_format(this,
                        this.value.toFixed(typeof prop['chart.value.label.decimals'] == 'number' ? prop['chart.value.label.decimals'] : prop['chart.scale.decimals']),
                        prop['chart.units.pre'],
                        prop['chart.units.post']
                    );

                RG.Text2(this, {
                    'font': prop['chart.text.font'],
                    'size': prop['chart.text.size'],
                    'x': this.gutterLeft + this.bulbRadius,
                    'y': this.coords[0][1] + 7,
                    'text': text,
                    'valign': 'top',
                    'halign': 'center',
                    'bounding': true,
                    'boundingFill': 'white',
                    'tag': 'value.label'
                });
            }


            /**
             * Draw the scale if requested
             */
            if (prop['chart.scale.visible']) {
                this.DrawScale();
            }
        };


    /**
     * Draws the title
     */
    this.drawTitle =
        this.DrawTitle = function () {
            co.fillStyle = prop['chart.text.color'];
            RG.Text2(this, {
                'font': prop['chart.text.font'],
                'size': prop['chart.text.size'] + 2,
                'x': this.gutterLeft + ((ca.width - this.gutterLeft - this.gutterRight) / 2),
                'y': this.gutterTop,
                'text': String(prop['chart.title']),
                'valign': 'center',
                'halign': 'center',
                'bold': true,
                'tag': 'title'
            });
        };


    /**
     * Draws the title
     */
    this.drawSideTitle =
        this.DrawSideTitle = function () {
            var font = prop['chart.title.side.font'] ? prop['chart.title.side.font'] : prop['chart.text.font'];
            var size = prop['chart.title.side.size'] ? prop['chart.title.side.size'] : prop['chart.text.size'] + 2;

            co.fillStyle = prop['chart.text.color'];
            RG.Text2(this, {
                'font': font,
                'size': size + 2,
                'x': this.gutterLeft - 3,
                'y': ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop,
                'text': String(prop['chart.title.side']),
                'valign': 'center',
                'halign': 'center',
                'angle': 270,
                'bold': prop['chart.title.side.bold'],
                'tag': 'title.side'
            });
        };


    /**
     * Draw the scale if requested
     */
    this.drawScale =
        this.DrawScale = function () {
            var numLabels = prop['chart.labels.count']; // The -1 is so that  the number of labels tallies with what is displayed
            var step = (this.max - this.min) / numLabels;

            co.fillStyle = prop['chart.text.color'];

            var font = prop['chart.text.font'];
            var size = prop['chart.text.size'];
            var units_pre = prop['chart.units.pre'];
            var units_post = prop['chart.units.post'];
            var decimals = prop['chart.scale.decimals'];

            for (var i = 1; i <= numLabels; ++i) {

                var x = ca.width - this.gutterRight;
                var y = ca.height - this.gutterBottom - (2 * this.bulbRadius) - ((this.graphArea[3] / numLabels) * i);
                var text = RG.number_format(this, String((this.min + (i * step)).toFixed(decimals)), units_pre, units_post);

                RG.Text2(this, {
                    'font': font,
                    'size': size,
                    'x': x - 6,
                    'y': y,
                    'text': text,
                    'valign': 'center',
                    'tag': 'scale'
                });
            }

            // Draw zero
            RG.Text2(this, {
                'font': font,
                'size': size,
                'x': x - 6,
                'y': ca.height - this.gutterBottom - (2 * this.bulbRadius),
                'text': RG.number_format(this, (this.min).toFixed(decimals), units_pre, units_post),
                'valign': 'center',
                'tag': 'scale'
            });
        };


    /**
     * Returns the focused/clicked bar
     *
     * @param event  e The event object
     */
    this.getShape =
        this.getBar = function (e) {
            for (var i = 0; i < this.coords.length; i++) {

                var mouseCoords = RGraph.getMouseXY(e);
                var mouseX = mouseCoords[0];
                var mouseY = mouseCoords[1];

                var left = this.coords[i][0];
                var top = this.coords[i][1];
                var width = this.coords[i][2];
                var height = this.coords[i][3];

                if ((mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height + this.bulbBottomRadius)) // The bulbBottomRadius is added as the rect and the bulb don't fully cover the red bit
                    || RG.getHypLength(this.bulbBottomCenterX, this.bulbBottomCenterY, mouseX, mouseY) <= this.bulbBottomRadius) {


                    var tooltip = RG.parseTooltipText ? RG.parseTooltipText(prop['chart.tooltips'], i) : '';


                    return {
                        0: this, 'object': this,
                        1: left, 'x': left,
                        2: top, 'y': top,
                        3: width, 'width': width,
                        4: height, 'height': height,
                        5: i, 'index': i,
                        'tooltip': tooltip
                    };
                }
            }

            return null;
        };


    /**
     * This function returns the value that the mouse is positioned t, regardless of
     * the actual indicated value.
     *
     * @param object e The event object (or it can also be an two element array containing the X/Y coords)
     */
    this.getValue = function (arg) {
        if (arg.length == 2) {
            var mouseX = arg[0];
            var mouseY = arg[1];
        } else {
            var mouseCoords = RGraph.getMouseXY(arg);
            var mouseX = mouseCoords[0];
            var mouseY = mouseCoords[1];
        }


        var value = this.graphArea[3] - (mouseY - this.graphArea[1]);
        value = (value / this.graphArea[3]) * (this.max - this.min);
        value = value + this.min;

        value = Math.max(value, this.min);
        value = Math.min(value, this.max);

        return value;
    };


    /**
     * Each object type has its own Highlight() function which highlights the appropriate shape
     *
     * @param object shape The shape to highlight
     */
    this.highlight =
        this.Highlight = function (shape) {
            if (prop['chart.tooltips.highlight']) {

                // Add the new highlight
                //RGraph.Highlight.Rect(this, shape);

                co.beginPath();
                co.strokeStyle = prop['chart.highlight.stroke'];
                co.fillStyle = prop['chart.highlight.fill'];
                co.rect(shape['x'], shape['y'], shape['width'], shape['height'] + this.bulbBottomRadius);
                co.arc(this.bulbBottomCenterX, this.bulbBottomCenterY, this.bulbBottomRadius - 1, 0, RG.TWOPI, false);
                co.stroke;
                co.fill();
            }
        };


    /**
     * 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.gutterLeft
            && mouseXY[0] < (ca.width - this.gutterRight)
            && mouseXY[1] >= this.gutterTop
            && mouseXY[1] <= (ca.height - this.gutterBottom)
        ) {

            return this;
        }
    };


    /**
     * 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 Thermometer
             */
            if (prop['chart.adjustable'] && RG.Registry.Get('chart.adjusting') && RG.Registry.Get('chart.adjusting').uid == this.uid) {

                var mouseXY = RGraph.getMouseXY(e);
                var value = this.getValue(e);

                if (typeof(value) == 'number') {

                    // Fire the onadjust event
                    RG.FireCustomEvent(this, 'onadjust');

                    this.value = Number(value.toFixed(prop['chart.scale.decimals']));

                    RG.redrawCanvas(ca);
                }
            }
        };


    /**
     * This function positions a tooltip when it is displayed
     *
     * @param obj object    The chart object
     * @param int x         The X coordinate specified for the tooltip
     * @param int y         The Y coordinate specified for the tooltip
     * @param objec tooltip The tooltips DIV element
     */
    this.positionTooltip = function (obj, x, y, tooltip, idx) {
        var coordX = obj.coords[tooltip.__index__][0];
        var coordY = obj.coords[tooltip.__index__][1];
        var coordW = obj.coords[tooltip.__index__][2];
        var coordH = obj.coords[tooltip.__index__][3];
        var canvasXY = RGraph.getCanvasXY(ca);
        var gutterLeft = obj.gutterLeft;
        var gutterTop = obj.gutterTop;
        var width = tooltip.offsetWidth;
        var height = tooltip.offsetHeight;

        // Set the top position
        tooltip.style.left = 0;
        tooltip.style.top = canvasXY[1] + coordY - height - 7 + 'px';

        // By default any overflow is hidden
        tooltip.style.overflow = '';

        // The arrow
        var img = new Image();
        img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
        img.style.position = 'absolute';
        img.id = '__rgraph_tooltip_pointer__';
        img.style.top = (tooltip.offsetHeight - 2) + 'px';
        tooltip.appendChild(img);

        // Reposition the tooltip if at the edges:

        // LEFT edge
        if ((canvasXY[0] + coordX - (width / 2)) < 10) {
            tooltip.style.left = (canvasXY[0] + coordX - (width * 0.1)) + (coordW / 2) + 'px';
            img.style.left = ((width * 0.1) - 8.5) + 'px';

            // RIGHT edge
        } else if ((canvasXY[0] + coordX + (width / 2)) > doc.body.offsetWidth) {
            tooltip.style.left = canvasXY[0] + coordX - (width * 0.9) + (coordW / 2) + 'px';
            img.style.left = ((width * 0.9) - 8.5) + 'px';

            // Default positioning - CENTERED
        } else {
            tooltip.style.left = (canvasXY[0] + coordX + (coordW / 2) - (width * 0.5)) + 'px';
            img.style.left = ((width * 0.5) - 8.5) + 'px';
        }
    };


    /**
     * Returns the appropriate Y coord for a value
     *
     * @param number value The value to return the coord for
     */
    this.getYCoord = function (value) {
        if (value > this.max || value < this.min) {
            return null;
        }

        var y = (this.graphArea[1] + this.graphArea[3]) - (((value - this.min) / (this.max - this.min)) * this.graphArea[3]);

        return y;
    };


    /**
     * This returns true/false as to whether the cursor is over the chart area.
     * The cursor does not necessarily have to be over the bar itself.
     */
    this.overChartArea = function (e) {
        var mouseXY = RG.getMouseXY(e);
        var mouseX = mouseXY[0];
        var mouseY = mouseXY[1];

        // Is the mouse in the "graphArea"?
        // ( with a little extra height added)
        if (mouseX >= this.graphArea[0]
            && mouseX <= (this.graphArea[0] + this.graphArea[2])
            && mouseY >= this.graphArea[1]
            && mouseY <= (this.graphArea[1] + this.graphArea[3] + this.bulbRadius)
        ) {

            return true;
        }

        // Is the mouse over the bottom bulb?
        if (RG.getHypLength(this.bulbBottomCenterX, this.bulbBottomCenterY, mouseX, mouseY) <= this.bulbRadius) {
            return true;
        }

        // Is the mouse over the semi-circle at the top?
        if (RG.getHypLength(this.bulbTopCenterX, this.bulbTopCenterY, mouseX, mouseY) <= this.bulbTopRadius) {
            return true;
        }

        return false;
    };


    /**
     * This allows for easy specification of gradients
     */
    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.colors'] = RG.array_clone(prop['chart.colors']);
        }


        var colors = prop['chart.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
     */
    this.parseSingleColorForGradient = function (color) {
        if (!color) {
            return color;
        }

        if (typeof color === 'string' && color.match(/^gradient\((.*)\)$/i)) {

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

            // Create the gradient
            var grad = co.createLinearGradient(prop['chart.gutter.left'], 0, ca.width - prop['chart.gutter.right'], 0);

            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   obj The chart object
     * @param              Not used - pass null
     * @param function     An optional callback function
     */
    this.grow = function () {
        var obj = this;
        var callback = arguments[1] || function () {
            };
        var opt = arguments[0] || {};
        var frames = opt.frames ? opt.frames : 30;
        var origValue = Number(obj.currentValue);
        var newValue = obj.value;
        newValue = ma.min(newValue, this.max);
        newValue = ma.max(newValue, this.min);
        var diff = newValue - origValue;
        var step = (diff / frames);
        var frame = 0;


        function iterate() {
            // Set the new value
            obj.value = (step * frame) + origValue;

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

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

        iterate();

        return this;
    };


    /**
     * Now, because canvases can support multiple charts, canvases must always be registered
     */
    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