devextreme/viz/translators/range.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (viz/translators/range.js)
 * Version: 18.1.3
 * Build date: Tue May 15 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */

"use strict";
var typeUtils = require("../../core/utils/type"),
    extend = require("../../core/utils/extend").extend,
    _isDefined = typeUtils.isDefined,
    _isDate = typeUtils.isDate,
    unique = require("../core/utils").unique,
    minSelector = "min",
    maxSelector = "max",
    minVisibleSelector = "minVisible",
    maxVisibleSelector = "maxVisible",
    baseSelector = "base",
    axisTypeSelector = "axisType",
    _Range;

function otherLessThan(thisValue, otherValue) {
    return otherValue < thisValue
}

function otherGreaterThan(thisValue, otherValue) {
    return otherValue > thisValue
}

function compareAndReplace(thisValue, otherValue, setValue, compare) {
    var otherValueDefined = _isDefined(otherValue);
    if (_isDefined(thisValue)) {
        if (otherValueDefined && compare(thisValue, otherValue)) {
            setValue(otherValue)
        }
    } else {
        if (otherValueDefined) {
            setValue(otherValue)
        }
    }
}
_Range = exports.Range = function(range) {
    range && extend(this, range)
};
_Range.prototype = {
    constructor: _Range,
    addRange: function(otherRange) {
        var that = this,
            categories = that.categories,
            otherCategories = otherRange.categories;
        var compareAndReplaceByField = function(field, compare) {
            compareAndReplace(that[field], otherRange[field], function(value) {
                that[field] = value
            }, compare)
        };
        var controlValuesByVisibleBounds = function(valueField, visibleValueField, compare) {
            compareAndReplace(that[valueField], that[visibleValueField], function(value) {
                _isDefined(that[valueField]) && (that[valueField] = value)
            }, compare)
        };
        var checkField = function(field) {
            that[field] = that[field] || otherRange[field]
        };
        checkField("invert");
        checkField(axisTypeSelector);
        checkField("dataType");
        checkField("isSpacedMargin"), checkField("checkMinDataVisibility");
        checkField("checkMaxDataVisibility");
        if ("logarithmic" === that[axisTypeSelector]) {
            checkField(baseSelector)
        } else {
            that[baseSelector] = void 0
        }
        compareAndReplaceByField(minSelector, otherLessThan);
        compareAndReplaceByField(maxSelector, otherGreaterThan);
        if ("discrete" === that[axisTypeSelector]) {
            checkField(minVisibleSelector);
            checkField(maxVisibleSelector)
        } else {
            compareAndReplaceByField(minVisibleSelector, otherLessThan);
            compareAndReplaceByField(maxVisibleSelector, otherGreaterThan)
        }
        compareAndReplaceByField("interval", otherLessThan);
        controlValuesByVisibleBounds(minSelector, minVisibleSelector, otherLessThan);
        controlValuesByVisibleBounds(minSelector, maxVisibleSelector, otherLessThan);
        controlValuesByVisibleBounds(maxSelector, maxVisibleSelector, otherGreaterThan);
        controlValuesByVisibleBounds(maxSelector, minVisibleSelector, otherGreaterThan);
        if (void 0 === categories) {
            that.categories = otherCategories
        } else {
            that.categories = otherCategories ? unique(categories.concat(otherCategories)) : categories
        }
        return that
    },
    isDefined: function() {
        return _isDefined(this[minSelector]) && _isDefined(this[maxSelector]) || this.categories && this.categories.length
    },
    setStubData: function(dataType) {
        var that = this,
            year = (new Date).getFullYear() - 1,
            isDate = "datetime" === dataType,
            axisType = that[axisTypeSelector],
            min = "logarithmic" === axisType ? 1 : 0;
        if ("discrete" === axisType) {
            that.categories = isDate ? [new Date(year, 0, 1), new Date(year, 3, 1), new Date(year, 6, 1), new Date(year, 9, 1)] : ["0", "1", "2"]
        } else {
            that[minSelector] = isDate ? new Date(year, 0, 1) : min;
            that[maxSelector] = isDate ? new Date(year, 11, 31) : 10
        }
        that.stubData = true;
        return that
    },
    correctValueZeroLevel: function() {
        var that = this;
        if ("logarithmic" === that[axisTypeSelector] || _isDate(that[maxSelector]) || _isDate(that[minSelector])) {
            return that
        }

        function setZeroLevel(min, max) {
            that[min] < 0 && that[max] < 0 && (that[max] = 0);
            that[min] > 0 && that[max] > 0 && (that[min] = 0)
        }
        setZeroLevel(minSelector, maxSelector);
        setZeroLevel(minVisibleSelector, maxVisibleSelector);
        return that
    },
    sortCategories: function(arr) {
        var cat = this.categories,
            callback = "datetime" === this.dataType ? function(item) {
                return cat.map(Number).indexOf(item.valueOf()) !== -1
            } : function(item) {
                return cat.indexOf(item) !== -1
            };
        arr && cat && (this.categories = arr.filter(callback))
    }
};