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/* *
*
* (c) 2010-2021 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import U from '../Utilities.js';
var addEvent = U.addEvent, getMagnitude = U.getMagnitude, normalizeTickInterval = U.normalizeTickInterval, timeUnits = U.timeUnits;
/* *
*
* Composition
*
* */
/* eslint-disable valid-jsdoc */
var DateTimeAxis;
(function (DateTimeAxis) {
/* *
*
* Declarations
*
* */
/* *
*
* Constants
*
* */
var composedClasses = [];
/* *
*
* Functions
*
* */
/**
* Extends axis class with date and time support.
* @private
*/
function compose(AxisClass) {
if (composedClasses.indexOf(AxisClass) === -1) {
composedClasses.push(AxisClass);
AxisClass.keepProps.push('dateTime');
var axisProto = AxisClass.prototype;
axisProto.getTimeTicks = getTimeTicks;
addEvent(AxisClass, 'init', onInit);
}
return AxisClass;
}
DateTimeAxis.compose = compose;
/**
* Set the tick positions to a time unit that makes sense, for example
* on the first of each month or on every Monday. Return an array with
* the time positions. Used in datetime axes as well as for grouping
* data on a datetime axis.
*
* @private
* @function Highcharts.Axis#getTimeTicks
* @param {Highcharts.TimeNormalizeObject} normalizedInterval
* The interval in axis values (ms) and thecount.
* @param {number} min
* The minimum in axis values.
* @param {number} max
* The maximum in axis values.
*/
function getTimeTicks() {
return this.chart.time.getTimeTicks.apply(this.chart.time, arguments);
}
/**
* @private
*/
function onInit(e) {
var axis = this;
var options = e.userOptions;
if (options.type !== 'datetime') {
axis.dateTime = void 0;
return;
}
if (!axis.dateTime) {
axis.dateTime = new Additions(axis);
}
}
/* *
*
* Classes
*
* */
var Additions = /** @class */ (function () {
/* *
*
* Constructors
*
* */
function Additions(axis) {
this.axis = axis;
}
/* *
*
* Functions
*
* */
/**
* Get a normalized tick interval for dates. Returns a configuration
* object with unit range (interval), count and name. Used to prepare
* data for `getTimeTicks`. Previously this logic was part of
* getTimeTicks, but as `getTimeTicks` now runs of segments in stock
* charts, the normalizing logic was extracted in order to prevent it
* for running over again for each segment having the same interval.
* #662, #697.
* @private
*/
Additions.prototype.normalizeTimeTickInterval = function (tickInterval, unitsOption) {
var units = (unitsOption || [[
// unit name
'millisecond',
// allowed multiples
[1, 2, 5, 10, 20, 25, 50, 100, 200, 500]
], [
'second',
[1, 2, 5, 10, 15, 30]
], [
'minute',
[1, 2, 5, 10, 15, 30]
], [
'hour',
[1, 2, 3, 4, 6, 8, 12]
], [
'day',
[1, 2]
], [
'week',
[1, 2]
], [
'month',
[1, 2, 3, 4, 6]
], [
'year',
null
]]);
var unit = units[units.length - 1], // default unit is years
interval = timeUnits[unit[0]], multiples = unit[1], i;
// loop through the units to find the one that best fits the
// tickInterval
for (i = 0; i < units.length; i++) {
unit = units[i];
interval = timeUnits[unit[0]];
multiples = unit[1];
if (units[i + 1]) {
// lessThan is in the middle between the highest multiple
// and the next unit.
var lessThan = (interval *
multiples[multiples.length - 1] +
timeUnits[units[i + 1][0]]) / 2;
// break and keep the current unit
if (tickInterval <= lessThan) {
break;
}
}
}
// prevent 2.5 years intervals, though 25, 250 etc. are allowed
if (interval === timeUnits.year && tickInterval < 5 * interval) {
multiples = [1, 2, 5];
}
// get the count
var count = normalizeTickInterval(tickInterval / interval, multiples, unit[0] === 'year' ? // #1913, #2360
Math.max(getMagnitude(tickInterval / interval), 1) :
1);
return {
unitRange: interval,
count: count,
unitName: unit[0]
};
};
/**
* Get the best date format for a specific X value based on the closest
* point range on the axis.
*
* @private
*/
Additions.prototype.getXDateFormat = function (x, dateTimeLabelFormats) {
var axis = this.axis, time = axis.chart.time;
return axis.closestPointRange ?
time.getDateFormat(axis.closestPointRange, x, axis.options.startOfWeek, dateTimeLabelFormats) ||
// #2546, 2581
time.resolveDTLFormat(dateTimeLabelFormats.year).main :
time.resolveDTLFormat(dateTimeLabelFormats.day).main;
};
return Additions;
}());
DateTimeAxis.Additions = Additions;
})(DateTimeAxis || (DateTimeAxis = {}));
/* *
*
* Default Export
*
* */
export default DateTimeAxis;
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