devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (viz/gauges/base_range_container.js)
* Version: 18.2.18
* Build date: Tue Oct 18 2022
*
* Copyright (c) 2012 - 2022 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var iterateUtils = require("../../core/utils/iterator"),
BaseElement = require("./base_indicators").BaseElement,
_Number = Number,
_abs = Math.abs,
_isString = require("../../core/utils/type").isString,
_isArray = Array.isArray,
_isFinite = isFinite,
_each = iterateUtils.each;
var BaseRangeContainer = BaseElement.inherit({
_init: function() {
this._root = this._renderer.g().attr({
"class": "dxg-range-container"
}).linkOn(this._container, "range-container")
},
_dispose: function() {
this._root.linkOff()
},
clean: function() {
this._root.linkRemove().clear();
this._options = this.enabled = null;
return this
},
_getRanges: function() {
var that = this,
options = that._options,
translator = that._translator,
totalStart = translator.getDomain()[0],
totalEnd = translator.getDomain()[1],
totalDelta = totalEnd - totalStart,
isNotEmptySegment = totalDelta >= 0 ? isNotEmptySegmentAsc : isNotEmptySegmentDesc,
subtractSegment = totalDelta >= 0 ? subtractSegmentAsc : subtractSegmentDesc,
list = [],
ranges = [],
backgroundRanges = [{
start: totalStart,
end: totalEnd
}],
threshold = _abs(totalDelta) / 1e4,
palette = that._themeManager.createPalette(options.palette, {
type: "indicatingSet",
extensionMode: options.paletteExtensionMode,
keepLastColorInEnd: true
}),
backgroundColor = _isString(options.backgroundColor) ? options.backgroundColor : "none",
width = options.width || {},
startWidth = _Number(width > 0 ? width : width.start),
endWidth = _Number(width > 0 ? width : width.end),
deltaWidth = endWidth - startWidth;
if (void 0 !== options.ranges && !_isArray(options.ranges)) {
return null
}
if (!(startWidth >= 0 && endWidth >= 0 && startWidth + endWidth > 0)) {
return null
}
list = (_isArray(options.ranges) ? options.ranges : []).reduce(function(result, rangeOptions, i) {
rangeOptions = rangeOptions || {};
var start = translator.adjust(rangeOptions.startValue),
end = translator.adjust(rangeOptions.endValue);
if (_isFinite(start) && _isFinite(end) && isNotEmptySegment(start, end, threshold)) {
result.push({
start: start,
end: end,
color: rangeOptions.color,
classIndex: i
})
}
return result
}, []);
_each(list, function(i, item) {
var paletteColor = palette.getNextColor(list.length);
item.color = _isString(item.color) && item.color || paletteColor || "none";
item.className = "dxg-range dxg-range-" + item.classIndex;
delete item.classIndex
});
_each(list, function(_, item) {
var i, ii, sub, subs, range, newRanges = [],
newBackgroundRanges = [];
for (i = 0, ii = ranges.length; i < ii; ++i) {
range = ranges[i];
subs = subtractSegment(range.start, range.end, item.start, item.end);
(sub = subs[0]) && (sub.color = range.color) && (sub.className = range.className) && newRanges.push(sub);
(sub = subs[1]) && (sub.color = range.color) && (sub.className = range.className) && newRanges.push(sub)
}
newRanges.push(item);
ranges = newRanges;
for (i = 0, ii = backgroundRanges.length; i < ii; ++i) {
range = backgroundRanges[i];
subs = subtractSegment(range.start, range.end, item.start, item.end);
(sub = subs[0]) && newBackgroundRanges.push(sub);
(sub = subs[1]) && newBackgroundRanges.push(sub)
}
backgroundRanges = newBackgroundRanges
});
_each(backgroundRanges, function(_, range) {
range.color = backgroundColor;
range.className = "dxg-range dxg-background-range";
ranges.push(range)
});
_each(ranges, function(_, range) {
range.startWidth = (range.start - totalStart) / totalDelta * deltaWidth + startWidth;
range.endWidth = (range.end - totalStart) / totalDelta * deltaWidth + startWidth
});
return ranges
},
render: function(options) {
var that = this;
that._options = options;
that._processOptions();
that._ranges = that._getRanges();
if (that._ranges) {
that.enabled = true;
that._root.linkAppend()
}
return that
},
resize: function(layout) {
var that = this;
that._root.clear();
if (that._isVisible(layout)) {
_each(that._ranges, function(_, range) {
that._createRange(range, layout).attr({
fill: range.color,
"class": range.className
}).append(that._root)
})
}
return that
},
_processOptions: null,
_isVisible: null,
_createRange: null,
getColorForValue: function(value) {
var color = null;
_each(this._ranges, function(_, range) {
if (range.start <= value && value <= range.end || range.start >= value && value >= range.end) {
color = range.color;
return false
}
});
return color
}
});
function subtractSegmentAsc(segmentStart, segmentEnd, otherStart, otherEnd) {
var result;
if (otherStart > segmentStart && otherEnd < segmentEnd) {
result = [{
start: segmentStart,
end: otherStart
}, {
start: otherEnd,
end: segmentEnd
}]
} else {
if (otherStart >= segmentEnd || otherEnd <= segmentStart) {
result = [{
start: segmentStart,
end: segmentEnd
}]
} else {
if (otherStart <= segmentStart && otherEnd >= segmentEnd) {
result = []
} else {
if (otherStart > segmentStart) {
result = [{
start: segmentStart,
end: otherStart
}]
} else {
if (otherEnd < segmentEnd) {
result = [{
start: otherEnd,
end: segmentEnd
}]
}
}
}
}
}
return result
}
function subtractSegmentDesc(segmentStart, segmentEnd, otherStart, otherEnd) {
var result;
if (otherStart < segmentStart && otherEnd > segmentEnd) {
result = [{
start: segmentStart,
end: otherStart
}, {
start: otherEnd,
end: segmentEnd
}]
} else {
if (otherStart <= segmentEnd || otherEnd >= segmentStart) {
result = [{
start: segmentStart,
end: segmentEnd
}]
} else {
if (otherStart >= segmentStart && otherEnd <= segmentEnd) {
result = []
} else {
if (otherStart < segmentStart) {
result = [{
start: segmentStart,
end: otherStart
}]
} else {
if (otherEnd > segmentEnd) {
result = [{
start: otherEnd,
end: segmentEnd
}]
}
}
}
}
}
return result
}
function isNotEmptySegmentAsc(start, end, threshold) {
return end - start >= threshold
}
function isNotEmptySegmentDesc(start, end, threshold) {
return start - end >= threshold
}
module.exports = BaseRangeContainer;