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/* *
*
* (c) 2010-2019 Torstein Honsi
*
* License: www.highcharts.com/license
*
* */
/**
* Extended data labels for range series types. Range series data labels use no
* `x` and `y` options. Instead, they have `xLow`, `xHigh`, `yLow` and `yHigh`
* options to allow the higher and lower data label sets individually.
*
* @interface Highcharts.PlotAreaRangeDataLabelsOptionsObject
* @extends Highcharts.DataLabelsOptionsObject
* @since 2.3.0
* @product highcharts highstock
*//**
* X offset of the lower data labels relative to the point value.
*
* @see {@link https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/arearange-datalabels/|Highcharts-Demo:}
* Data labels on range series
* @see {@link https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/arearange-datalabels/|Highcharts-Demo:}
* Data labels on range series
*
* @name Highcharts.PlotAreaRangeDataLabelsOptionsObject#xLow
* @type {number|undefined}
* @default 0
* @since 2.3.0
* @product highcharts highstock
*//**
* X offset of the higher data labels relative to the point value.
*
* @see {@link https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/arearange-datalabels/|Highcharts-Demo:}
* Data labels on range series
*
* @name Highcharts.PlotAreaRangeDataLabelsOptionsObject#xHigh
* @type {number|undefined}
* @default 0
* @since 2.3.0
* @product highcharts highstock
*//**
* Y offset of the lower data labels relative to the point value.
*
* @see {@link https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/arearange-datalabels/|Highcharts-Demo:}
* Data labels on range series
*
* @name Highcharts.PlotAreaRangeDataLabelsOptionsObject#yLow
* @type {number|undefined}
* @default 0
* @since 2.3.0
* @product highcharts highstock
*//**
* Y offset of the higher data labels relative to the point value.
*
* @see {@link https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/arearange-datalabels/|Highcharts-Demo:}
* Data labels on range series
*
* @name Highcharts.PlotAreaRangeDataLabelsOptionsObject#yHigh
* @type {number|undefined}
* @default 0
* @since 2.3.0
* @product highcharts highstock
*/
'use strict';
import H from '../parts/Globals.js';
import '../parts/Utilities.js';
import '../parts/Options.js';
import '../parts/Series.js';
var noop = H.noop,
pick = H.pick,
extend = H.extend,
isArray = H.isArray,
defined = H.defined,
Series = H.Series,
seriesType = H.seriesType,
seriesTypes = H.seriesTypes,
seriesProto = Series.prototype,
pointProto = H.Point.prototype;
/**
* The area range series is a carteseian series with higher and lower values for
* each point along an X axis, where the area between the values is shaded.
* Requires `highcharts-more.js`.
*
* @sample {highcharts} highcharts/demo/arearange/
* Area range chart
* @sample {highstock} stock/demo/arearange/
* Area range chart
*
* @extends plotOptions.area
* @product highcharts highstock
* @excluding stack, stacking
* @optionparent plotOptions.arearange
*/
seriesType('arearange', 'area', {
/**
* Whether to apply a drop shadow to the graph line. Since 2.3 the shadow
* can be an object configuration containing `color`, `offsetX`, `offsetY`,
* `opacity` and `width`.
*
* @type {boolean|Highcharts.ShadowOptionsObject}
* @product highcharts
* @apioption plotOptions.arearange.shadow
*/
/**
* Pixel width of the arearange graph line.
*
* @since 2.3.0
*
* @private
*/
lineWidth: 1,
threshold: null,
tooltip: {
pointFormat: '<span style="color:{series.color}">\u25CF</span> ' +
'{series.name}: <b>{point.low}</b> - <b>{point.high}</b><br/>'
},
/**
* Whether the whole area or just the line should respond to mouseover
* tooltips and other mouse or touch events.
*
* @since 2.3.0
*
* @private
*/
trackByArea: true,
/**
* @type {Highcharts.DataLabelsOptionsObject|Highcharts.PlotAreaRangeDataLabelsOptionsObject}
*
* @private
*/
dataLabels: {
/** @ignore-option */
align: null,
/** @ignore-option */
verticalAlign: null,
/** @ignore-option */
xLow: 0,
/** @ignore-option */
xHigh: 0,
/** @ignore-option */
yLow: 0,
/** @ignore-option */
yHigh: 0
}
// Prototype members
}, {
pointArrayMap: ['low', 'high'],
toYData: function (point) {
return [point.low, point.high];
},
pointValKey: 'low',
deferTranslatePolar: true,
// Translate a point's plotHigh from the internal angle and radius measures
// to true plotHigh coordinates. This is an addition of the toXY method
// found in Polar.js, because it runs too early for arearanges to be
// considered (#3419).
highToXY: function (point) {
// Find the polar plotX and plotY
var chart = this.chart,
xy = this.xAxis.postTranslate(
point.rectPlotX,
this.yAxis.len - point.plotHigh
);
point.plotHighX = xy.x - chart.plotLeft;
point.plotHigh = xy.y - chart.plotTop;
point.plotLowX = point.plotX;
},
// Translate data points from raw values x and y to plotX and plotY.
translate: function () {
var series = this,
yAxis = series.yAxis,
hasModifyValue = !!series.modifyValue;
seriesTypes.area.prototype.translate.apply(series);
// Set plotLow and plotHigh
series.points.forEach(function (point) {
var low = point.low,
high = point.high,
plotY = point.plotY;
if (high === null || low === null) {
point.isNull = true;
point.plotY = null;
} else {
point.plotLow = plotY;
point.plotHigh = yAxis.translate(
hasModifyValue ? series.modifyValue(high, point) : high,
0,
1,
0,
1
);
if (hasModifyValue) {
point.yBottom = point.plotHigh;
}
}
});
// Postprocess plotHigh
if (this.chart.polar) {
this.points.forEach(function (point) {
series.highToXY(point);
point.tooltipPos = [
(point.plotHighX + point.plotLowX) / 2,
(point.plotHigh + point.plotLow) / 2
];
});
}
},
// Extend the line series' getSegmentPath method by applying the segment
// path to both lower and higher values of the range.
getGraphPath: function (points) {
var highPoints = [],
highAreaPoints = [],
i,
getGraphPath = seriesTypes.area.prototype.getGraphPath,
point,
pointShim,
linePath,
lowerPath,
options = this.options,
connectEnds = this.chart.polar && options.connectEnds !== false,
connectNulls = options.connectNulls,
step = options.step,
higherPath,
higherAreaPath;
points = points || this.points;
i = points.length;
// Create the top line and the top part of the area fill. The area fill
// compensates for null points by drawing down to the lower graph,
// moving across the null gap and starting again at the lower graph.
i = points.length;
while (i--) {
point = points[i];
if (
!point.isNull &&
!connectEnds &&
!connectNulls &&
(!points[i + 1] || points[i + 1].isNull)
) {
highAreaPoints.push({
plotX: point.plotX,
plotY: point.plotY,
doCurve: false // #5186, gaps in areasplinerange fill
});
}
pointShim = {
polarPlotY: point.polarPlotY,
rectPlotX: point.rectPlotX,
yBottom: point.yBottom,
// plotHighX is for polar charts
plotX: pick(point.plotHighX, point.plotX),
plotY: point.plotHigh,
isNull: point.isNull
};
highAreaPoints.push(pointShim);
highPoints.push(pointShim);
if (
!point.isNull &&
!connectEnds &&
!connectNulls &&
(!points[i - 1] || points[i - 1].isNull)
) {
highAreaPoints.push({
plotX: point.plotX,
plotY: point.plotY,
doCurve: false // #5186, gaps in areasplinerange fill
});
}
}
// Get the paths
lowerPath = getGraphPath.call(this, points);
if (step) {
if (step === true) {
step = 'left';
}
options.step = {
left: 'right',
center: 'center',
right: 'left'
}[step]; // swap for reading in getGraphPath
}
higherPath = getGraphPath.call(this, highPoints);
higherAreaPath = getGraphPath.call(this, highAreaPoints);
options.step = step;
// Create a line on both top and bottom of the range
linePath = [].concat(lowerPath, higherPath);
// For the area path, we need to change the 'move' statement
// into 'lineTo' or 'curveTo'
if (!this.chart.polar && higherAreaPath[0] === 'M') {
higherAreaPath[0] = 'L'; // this probably doesn't work for spline
}
this.graphPath = linePath;
this.areaPath = lowerPath.concat(higherAreaPath);
// Prepare for sideways animation
linePath.isArea = true;
linePath.xMap = lowerPath.xMap;
this.areaPath.xMap = lowerPath.xMap;
return linePath;
},
// Extend the basic drawDataLabels method by running it for both lower and
// higher values.
drawDataLabels: function () {
var data = this.points,
length = data.length,
i,
originalDataLabels = [],
dataLabelOptions = this.options.dataLabels,
point,
up,
inverted = this.chart.inverted,
upperDataLabelOptions,
lowerDataLabelOptions;
// Split into upper and lower options. If data labels is an array, the
// first element is the upper label, the second is the lower.
//
// TODO: We want to change this and allow multiple labels for both upper
// and lower values in the future - introducing some options for which
// point value to use as Y for the dataLabel, so that this could be
// handled in Series.drawDataLabels. This would also improve performance
// since we now have to loop over all the points multiple times to work
// around the data label logic.
if (isArray(dataLabelOptions)) {
if (dataLabelOptions.length > 1) {
upperDataLabelOptions = dataLabelOptions[0];
lowerDataLabelOptions = dataLabelOptions[1];
} else {
upperDataLabelOptions = dataLabelOptions[0];
lowerDataLabelOptions = { enabled: false };
}
} else {
upperDataLabelOptions = extend({}, dataLabelOptions); // Make copy;
upperDataLabelOptions.x = dataLabelOptions.xHigh;
upperDataLabelOptions.y = dataLabelOptions.yHigh;
lowerDataLabelOptions = extend({}, dataLabelOptions); // Make copy
lowerDataLabelOptions.x = dataLabelOptions.xLow;
lowerDataLabelOptions.y = dataLabelOptions.yLow;
}
// Draw upper labels
if (upperDataLabelOptions.enabled || this._hasPointLabels) {
// Set preliminary values for plotY and dataLabel
// and draw the upper labels
i = length;
while (i--) {
point = data[i];
if (point) {
up = upperDataLabelOptions.inside ?
point.plotHigh < point.plotLow :
point.plotHigh > point.plotLow;
point.y = point.high;
point._plotY = point.plotY;
point.plotY = point.plotHigh;
// Store original data labels and set preliminary label
// objects to be picked up in the uber method
originalDataLabels[i] = point.dataLabel;
point.dataLabel = point.dataLabelUpper;
// Set the default offset
point.below = up;
if (inverted) {
if (!upperDataLabelOptions.align) {
upperDataLabelOptions.align = up ? 'right' : 'left';
}
} else {
if (!upperDataLabelOptions.verticalAlign) {
upperDataLabelOptions.verticalAlign = up ?
'top' :
'bottom';
}
}
}
}
this.options.dataLabels = upperDataLabelOptions;
if (seriesProto.drawDataLabels) {
seriesProto.drawDataLabels.apply(this, arguments); // #1209
}
// Reset state after the upper labels were created. Move
// it to point.dataLabelUpper and reassign the originals.
// We do this here to support not drawing a lower label.
i = length;
while (i--) {
point = data[i];
if (point) {
point.dataLabelUpper = point.dataLabel;
point.dataLabel = originalDataLabels[i];
delete point.dataLabels;
point.y = point.low;
point.plotY = point._plotY;
}
}
}
// Draw lower labels
if (lowerDataLabelOptions.enabled || this._hasPointLabels) {
i = length;
while (i--) {
point = data[i];
if (point) {
up = lowerDataLabelOptions.inside ?
point.plotHigh < point.plotLow :
point.plotHigh > point.plotLow;
// Set the default offset
point.below = !up;
if (inverted) {
if (!lowerDataLabelOptions.align) {
lowerDataLabelOptions.align = up ? 'left' : 'right';
}
} else {
if (!lowerDataLabelOptions.verticalAlign) {
lowerDataLabelOptions.verticalAlign = up ?
'bottom' :
'top';
}
}
}
}
this.options.dataLabels = lowerDataLabelOptions;
if (seriesProto.drawDataLabels) {
seriesProto.drawDataLabels.apply(this, arguments);
}
}
// Merge upper and lower into point.dataLabels for later destroying
if (upperDataLabelOptions.enabled) {
i = length;
while (i--) {
point = data[i];
if (point) {
point.dataLabels = [point.dataLabelUpper, point.dataLabel]
.filter(function (label) {
return !!label;
});
}
}
}
// Reset options
this.options.dataLabels = dataLabelOptions;
},
alignDataLabel: function () {
seriesTypes.column.prototype.alignDataLabel.apply(this, arguments);
},
drawPoints: function () {
var series = this,
pointLength = series.points.length,
point,
i;
// Draw bottom points
seriesProto.drawPoints.apply(series, arguments);
// Prepare drawing top points
i = 0;
while (i < pointLength) {
point = series.points[i];
// Save original props to be overridden by temporary props for top
// points
point.origProps = {
plotY: point.plotY,
plotX: point.plotX,
isInside: point.isInside,
negative: point.negative,
zone: point.zone,
y: point.y
};
point.lowerGraphic = point.graphic;
point.graphic = point.upperGraphic;
point.plotY = point.plotHigh;
if (defined(point.plotHighX)) {
point.plotX = point.plotHighX;
}
point.y = point.high;
point.negative = point.high < (series.options.threshold || 0);
point.zone = series.zones.length && point.getZone();
if (!series.chart.polar) {
point.isInside = point.isTopInside = (
point.plotY !== undefined &&
point.plotY >= 0 &&
point.plotY <= series.yAxis.len && // #3519
point.plotX >= 0 &&
point.plotX <= series.xAxis.len
);
}
i++;
}
// Draw top points
seriesProto.drawPoints.apply(series, arguments);
// Reset top points preliminary modifications
i = 0;
while (i < pointLength) {
point = series.points[i];
point.upperGraphic = point.graphic;
point.graphic = point.lowerGraphic;
H.extend(point, point.origProps);
delete point.origProps;
i++;
}
},
setStackedPoints: noop
}, {
setState: function () {
var prevState = this.state,
series = this.series,
isPolar = series.chart.polar;
if (!defined(this.plotHigh)) {
// Boost doesn't calculate plotHigh
this.plotHigh = series.yAxis.toPixels(this.high, true);
}
if (!defined(this.plotLow)) {
// Boost doesn't calculate plotLow
this.plotLow = this.plotY = series.yAxis.toPixels(this.low, true);
}
if (series.stateMarkerGraphic) {
series.lowerStateMarkerGraphic = series.stateMarkerGraphic;
series.stateMarkerGraphic = series.upperStateMarkerGraphic;
}
// Change state also for the top marker
this.graphic = this.upperGraphic;
this.plotY = this.plotHigh;
if (isPolar) {
this.plotX = this.plotHighX;
}
// Top state:
pointProto.setState.apply(this, arguments);
this.state = prevState;
// Now restore defaults
this.plotY = this.plotLow;
this.graphic = this.lowerGraphic;
if (isPolar) {
this.plotX = this.plotLowX;
}
if (series.stateMarkerGraphic) {
series.upperStateMarkerGraphic = series.stateMarkerGraphic;
series.stateMarkerGraphic = series.lowerStateMarkerGraphic;
// Lower marker is stored at stateMarkerGraphic
// to avoid reference duplication (#7021)
series.lowerStateMarkerGraphic = undefined;
}
pointProto.setState.apply(this, arguments);
},
haloPath: function () {
var isPolar = this.series.chart.polar,
path = [];
// Bottom halo
this.plotY = this.plotLow;
if (isPolar) {
this.plotX = this.plotLowX;
}
if (this.isInside) {
path = pointProto.haloPath.apply(this, arguments);
}
// Top halo
this.plotY = this.plotHigh;
if (isPolar) {
this.plotX = this.plotHighX;
}
if (this.isTopInside) {
path = path.concat(
pointProto.haloPath.apply(this, arguments)
);
}
return path;
},
destroyElements: function () {
var graphics = ['lowerGraphic', 'upperGraphic'];
graphics.forEach(function (graphicName) {
if (this[graphicName]) {
this[graphicName] = this[graphicName].destroy();
}
}, this);
// Clear graphic for states, removed in the above each:
this.graphic = null;
return pointProto.destroyElements.apply(this, arguments);
}
});
/**
* A `arearange` series. If the [type](#series.arearange.type) option is not
* specified, it is inherited from [chart.type](#chart.type).
*
*
* @extends series,plotOptions.arearange
* @excluding dataParser, dataURL, stack, stacking
* @product highcharts highstock
* @apioption series.arearange
*/
/**
* An array of data points for the series. For the `arearange` series type,
* points can be given in the following ways:
*
* 1. An array of arrays with 3 or 2 values. In this case, the values
* correspond to `x,low,high`. If the first value is a string, it is
* applied as the name of the point, and the `x` value is inferred.
* The `x` value can also be omitted, in which case the inner arrays
* should be of length 2\. Then the `x` value is automatically calculated,
* either starting at 0 and incremented by 1, or from `pointStart`
* and `pointInterval` given in the series options.
* ```js
* data: [
* [0, 8, 3],
* [1, 1, 1],
* [2, 6, 8]
* ]
* ```
*
* 2. An array of objects with named values. The following snippet shows only a
* few settings, see the complete options set below. If the total number of
* data points exceeds the series'
* [turboThreshold](#series.arearange.turboThreshold),
* this option is not available.
* ```js
* data: [{
* x: 1,
* low: 9,
* high: 0,
* name: "Point2",
* color: "#00FF00"
* }, {
* x: 1,
* low: 3,
* high: 4,
* name: "Point1",
* color: "#FF00FF"
* }]
* ```
*
* @sample {highcharts} highcharts/series/data-array-of-arrays/
* Arrays of numeric x and y
* @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
* Arrays of datetime x and y
* @sample {highcharts} highcharts/series/data-array-of-name-value/
* Arrays of point.name and y
* @sample {highcharts} highcharts/series/data-array-of-objects/
* Config objects
*
* @type {Array<Array<(number|string),number>|Array<(number|string),number,number>|*>}
* @extends series.line.data
* @excluding marker, y
* @product highcharts highstock
* @apioption series.arearange.data
*/
/**
* The high or maximum value for each data point.
*
* @type {number}
* @product highcharts highstock
* @apioption series.arearange.data.high
*/
/**
* The low or minimum value for each data point.
*
* @type {number}
* @product highcharts highstock
* @apioption series.arearange.data.low
*/
/**
* @excluding x, y
* @product highcharts highstock
* @apioption series.arearange.dataLabels
*/