scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
85 lines (84 loc) • 4.33 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PieLabelProvider = void 0;
var LabelProviderType_1 = require("../../../../types/LabelProviderType");
var NumericFormat_1 = require("../../../../types/NumericFormat");
var number_1 = require("../../../../utils/number");
var SciChartPieSurface_1 = require("../../SciChartPieSurface/SciChartPieSurface");
var LabelProvider_1 = require("./LabelProvider");
/**
* @summary A Label Provider for use with Pie Charts to allow customizing of segment labels
* To completely customise the label output, override {@link getSegmentText}
* To just adjust the numeric formatting of the label, use numericformat, precision, prefix, postfix, or override {@link formatLabel}
*/
var PieLabelProvider = /** @class */ (function (_super) {
__extends(PieLabelProvider, _super);
function PieLabelProvider(options) {
var _this = this;
var _a, _b;
_this = _super.call(this, __assign({ labelFormat: (_a = options === null || options === void 0 ? void 0 : options.labelFormat) !== null && _a !== void 0 ? _a : NumericFormat_1.ENumericFormat.Decimal, labelPrecision: (_b = options === null || options === void 0 ? void 0 : options.labelPrecision) !== null && _b !== void 0 ? _b : 2 }, options)) || this;
_this.type = LabelProviderType_1.ELabelProviderType.Pie;
_this.formatLabelProperty = function (dataValue) {
return _this.applyFormat((0, number_1.formatNumber)(dataValue, _this.numericFormat, _this.precision)) +
(_this.parentSurface.valueMode === SciChartPieSurface_1.EPieValueMode.Percentage ? " %" : "");
};
return _this;
}
PieLabelProvider.prototype.delete = function () { };
/**
* Get the text to be used as the segmet label. This picks the raw value, or percentage depending on the chart's valueMode
* then formats it using the {@link formatLabel} function.
* @param segment The PieSegment to get a label for
* @param total Total of all pieSegment values
*/
PieLabelProvider.prototype.getSegmentText = function (segment, total) {
var labelValue = this.parentSurface.valueMode === SciChartPieSurface_1.EPieValueMode.Percentage ? segment.getPercentage(total) : segment.value;
return this.formatLabel(labelValue);
};
/**
* Called when the {@link LabelProvider} is attached to an {@link SciChartPieSurface }
* @param pieSurface The SciPieSurface we are attached to.
*/
PieLabelProvider.prototype.attachedToSurface = function (pieSurface) {
this.parentSurface = pieSurface;
};
/**
* @inheritDoc
*/
PieLabelProvider.prototype.onBeginAxisDraw = function () {
// TODO: user can override here if they want
};
PieLabelProvider.prototype.invalidateParent = function () {
if (this.parentSurface && this.parentSurface.invalidateElement) {
this.parentSurface.invalidateElement();
}
};
return PieLabelProvider;
}(LabelProvider_1.LabelProvider));
exports.PieLabelProvider = PieLabelProvider;