wwbsr/node_modules/highcharts/indicators/price-envelopes.src.js

/**
 * @license Highstock JS v8.2.0 (2020-08-20)
 *
 * Indicator series type for Highstock
 *
 * (c) 2010-2019 Paweł Fus
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/indicators/price-envelopes', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'Stock/Indicators/PriceEnvelopesIndicator.js', [_modules['Core/Globals.js'], _modules['Core/Utilities.js']], function (H, U) {
        /* *
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var isArray = U.isArray,
            merge = U.merge,
            seriesType = U.seriesType;
        var SMA = H.seriesTypes.sma;
        /**
         * The Price Envelopes series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.priceenvelopes
         *
         * @augments Highcharts.Series
         */
        seriesType('priceenvelopes', 'sma', 
        /**
         * Price envelopes indicator based on [SMA](#plotOptions.sma) calculations.
         * This series requires the `linkedTo` option to be set and should be loaded
         * after the `stock/indicators/indicators.js` file.
         *
         * @sample stock/indicators/price-envelopes
         *         Price envelopes
         *
         * @extends      plotOptions.sma
         * @since        6.0.0
         * @product      highstock
         * @requires     stock/indicators/indicators
         * @requires     stock/indicators/price-envelopes
         * @optionparent plotOptions.priceenvelopes
         */
        {
            marker: {
                enabled: false
            },
            tooltip: {
                pointFormat: '<span style="color:{point.color}">\u25CF</span><b> {series.name}</b><br/>Top: {point.top}<br/>Middle: {point.middle}<br/>Bottom: {point.bottom}<br/>'
            },
            params: {
                period: 20,
                /**
                 * Percentage above the moving average that should be displayed.
                 * 0.1 means 110%. Relative to the calculated value.
                 */
                topBand: 0.1,
                /**
                 * Percentage below the moving average that should be displayed.
                 * 0.1 means 90%. Relative to the calculated value.
                 */
                bottomBand: 0.1
            },
            /**
             * Bottom line options.
             */
            bottomLine: {
                styles: {
                    /**
                     * Pixel width of the line.
                     */
                    lineWidth: 1,
                    /**
                     * Color of the line. If not set, it's inherited from
                     * [plotOptions.priceenvelopes.color](
                     * #plotOptions.priceenvelopes.color).
                     *
                     * @type {Highcharts.ColorString}
                     */
                    lineColor: void 0
                }
            },
            /**
             * Top line options.
             *
             * @extends plotOptions.priceenvelopes.bottomLine
             */
            topLine: {
                styles: {
                    lineWidth: 1
                }
            },
            dataGrouping: {
                approximation: 'averages'
            }
        }, 
        /**
         * @lends Highcharts.Series#
         */
        {
            nameComponents: ['period', 'topBand', 'bottomBand'],
            nameBase: 'Price envelopes',
            pointArrayMap: ['top', 'middle', 'bottom'],
            parallelArrays: ['x', 'y', 'top', 'bottom'],
            pointValKey: 'middle',
            init: function () {
                SMA.prototype.init.apply(this, arguments);
                // Set default color for lines:
                this.options = merge({
                    topLine: {
                        styles: {
                            lineColor: this.color
                        }
                    },
                    bottomLine: {
                        styles: {
                            lineColor: this.color
                        }
                    }
                }, this.options);
            },
            toYData: function (point) {
                return [point.top, point.middle, point.bottom];
            },
            translate: function () {
                var indicator = this, translatedEnvelopes = ['plotTop', 'plotMiddle', 'plotBottom'];
                SMA.prototype.translate.apply(indicator);
                indicator.points.forEach(function (point) {
                    [point.top, point.middle, point.bottom].forEach(function (value, i) {
                        if (value !== null) {
                            point[translatedEnvelopes[i]] =
                                indicator.yAxis.toPixels(value, true);
                        }
                    });
                });
            },
            drawGraph: function () {
                var indicator = this,
                    middleLinePoints = indicator.points,
                    pointsLength = middleLinePoints.length,
                    middleLineOptions = (indicator.options),
                    middleLinePath = indicator.graph,
                    gappedExtend = {
                        options: {
                            gapSize: middleLineOptions.gapSize
                        }
                    },
                    deviations = [[],
                    []], // top and bottom point place holders
                    point;
                // Generate points for top and bottom lines:
                while (pointsLength--) {
                    point = middleLinePoints[pointsLength];
                    deviations[0].push({
                        plotX: point.plotX,
                        plotY: point.plotTop,
                        isNull: point.isNull
                    });
                    deviations[1].push({
                        plotX: point.plotX,
                        plotY: point.plotBottom,
                        isNull: point.isNull
                    });
                }
                // Modify options and generate lines:
                ['topLine', 'bottomLine'].forEach(function (lineName, i) {
                    indicator.points = deviations[i];
                    indicator.options = merge(middleLineOptions[lineName].styles, gappedExtend);
                    indicator.graph = indicator['graph' + lineName];
                    SMA.prototype.drawGraph.call(indicator);
                    // Now save lines:
                    indicator['graph' + lineName] = indicator.graph;
                });
                // Restore options and draw a middle line:
                indicator.points = middleLinePoints;
                indicator.options = middleLineOptions;
                indicator.graph = middleLinePath;
                SMA.prototype.drawGraph.call(indicator);
            },
            getValues: function (series, params) {
                var period = params.period,
                    topPercent = params.topBand,
                    botPercent = params.bottomBand,
                    xVal = series.xData,
                    yVal = series.yData,
                    yValLen = yVal ? yVal.length : 0, 
                    // 0- date, 1-top line, 2-middle line, 3-bottom line
                    PE = [], 
                    // middle line, top line and bottom line
                    ML,
                    TL,
                    BL,
                    date,
                    xData = [],
                    yData = [],
                    slicedX,
                    slicedY,
                    point,
                    i;
                // Price envelopes requires close value
                if (xVal.length < period ||
                    !isArray(yVal[0]) ||
                    yVal[0].length !== 4) {
                    return;
                }
                for (i = period; i <= yValLen; i++) {
                    slicedX = xVal.slice(i - period, i);
                    slicedY = yVal.slice(i - period, i);
                    point = SMA.prototype.getValues.call(this, {
                        xData: slicedX,
                        yData: slicedY
                    }, params);
                    date = point.xData[0];
                    ML = point.yData[0];
                    TL = ML * (1 + topPercent);
                    BL = ML * (1 - botPercent);
                    PE.push([date, TL, ML, BL]);
                    xData.push(date);
                    yData.push([TL, ML, BL]);
                }
                return {
                    values: PE,
                    xData: xData,
                    yData: yData
                };
            }
        });
        /**
         * A price envelopes indicator. If the [type](#series.priceenvelopes.type)
         * option is not specified, it is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.priceenvelopes
         * @since     6.0.0
         * @excluding dataParser, dataURL
         * @product   highstock
         * @requires  stock/indicators/indicators
         * @requires  stock/indicators/price-envelopes
         * @apioption series.priceenvelopes
         */
        ''; // to include the above in the js output

    });
    _registerModule(_modules, 'masters/indicators/price-envelopes.src.js', [], function () {


    });
}));