scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
93 lines (92 loc) • 4.62 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 __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.LineSeriesDataLabelProvider = void 0;
var Point_1 = require("../../../../Core/Point");
var DataLabelProviderType_1 = require("../../../../types/DataLabelProviderType");
var DataLabelProvider_1 = require("./DataLabelProvider");
var LineSeriesDataLabelProvider = /** @class */ (function (_super) {
__extends(LineSeriesDataLabelProvider, _super);
function LineSeriesDataLabelProvider(options) {
var _this = this;
var _a;
_this = _super.call(this, options) || this;
_this.type = DataLabelProviderType_1.EDataLabelProviderType.Line;
_this.aboveBelowProperty = true;
_this.aboveBelowProperty = (_a = options === null || options === void 0 ? void 0 : options.aboveBelow) !== null && _a !== void 0 ? _a : _this.aboveBelow;
return _this;
}
Object.defineProperty(LineSeriesDataLabelProvider.prototype, "aboveBelow", {
/**
* Gets or Sets whether text should be positioned above the line if it is going down, and below the line if it going up.
* Default true. When true this overrides horizontalAnchorPoint and verticalAnchorPoint to be left, bottom.
*/
get: function () {
return this.aboveBelowProperty;
},
set: function (value) {
this.aboveBelowProperty = value;
this.invalidateParent();
},
enumerable: false,
configurable: true
});
LineSeriesDataLabelProvider.prototype.generateDataLabels = function (renderContext, renderPassData) {
var parent = this.parentSeries;
this.yAdj = Math.ceil(parent.strokeThickness / 2);
if (parent.pointMarker) {
this.yAdj = Math.max(this.yAdj, Math.ceil(parent.pointMarker.height / 2));
}
_super.prototype.generateDataLabels.call(this, renderContext, renderPassData);
};
LineSeriesDataLabelProvider.prototype.getPosition = function (state, textBounds) {
var _a, _b, _c, _d, _e, _f;
if (this.aboveBelow) {
var x = state.xCoord() + ((_b = (_a = this.style.padding) === null || _a === void 0 ? void 0 : _a.left) !== null && _b !== void 0 ? _b : 0);
// Handle multiline
var yOffset = textBounds.m_fHeight - textBounds.GetLineBounds(0).m_fHeight;
var y = state.yCoord() - yOffset;
if (state.hasNext()) {
var nextY = state.yCoord(state.index + 1);
var nextX = state.xCoord(state.index + 1);
// Text anchor point is bottom left
if ((nextX > x && nextY > y) || (nextX < x && nextY < y)) {
// going down - draw above
y -= this.yAdj + ((_d = (_c = state.style.padding) === null || _c === void 0 ? void 0 : _c.bottom) !== null && _d !== void 0 ? _d : 1);
}
else {
// going up - draw below
y += textBounds.m_fHeight + this.yAdj + ((_f = (_e = state.style.padding) === null || _e === void 0 ? void 0 : _e.top) !== null && _f !== void 0 ? _f : 1);
}
}
return new Point_1.Point(x, y);
}
else {
return _super.prototype.getPosition.call(this, state, textBounds);
}
};
LineSeriesDataLabelProvider.prototype.toJSON = function () {
var json = _super.prototype.toJSON.call(this);
var options = {
aboveBelow: this.aboveBelow
};
Object.assign(json.options, options);
return json;
};
return LineSeriesDataLabelProvider;
}(DataLabelProvider_1.DataLabelProvider));
exports.LineSeriesDataLabelProvider = LineSeriesDataLabelProvider;