ag-grid-enterprise
Version:
AG Grid Enterprise Features
67 lines • 2.85 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.LinearGradient = void 0;
var gradient_1 = require("./gradient");
var angle_1 = require("../../util/angle");
var LinearGradient = /** @class */ (function (_super) {
__extends(LinearGradient, _super);
function LinearGradient() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.angle = 0;
return _this;
}
LinearGradient.prototype.createGradient = function (ctx, bbox) {
// Gradient 0° angle starts at top according to CSS spec
var angleOffset = 90;
var _a = this, stops = _a.stops, angle = _a.angle;
var radians = angle_1.normalizeAngle360(angle_1.toRadians(angle + angleOffset));
var cos = Math.cos(radians);
var sin = Math.sin(radians);
var w = bbox.width;
var h = bbox.height;
var cx = bbox.x + w * 0.5;
var cy = bbox.y + h * 0.5;
if (w > 0 && h > 0) {
var diagonal = Math.sqrt(h * h + w * w) / 2;
var diagonalAngle = Math.atan2(h, w);
var quarteredAngle = void 0;
if (radians < Math.PI / 2) {
quarteredAngle = radians;
}
else if (radians < Math.PI) {
quarteredAngle = Math.PI - radians;
}
else if (radians < (3 * Math.PI) / 2) {
quarteredAngle = radians - Math.PI;
}
else {
quarteredAngle = 2 * Math.PI - radians;
}
var l = diagonal * Math.abs(Math.cos(quarteredAngle - diagonalAngle));
var gradient_2 = ctx.createLinearGradient(cx + cos * l, cy + sin * l, cx - cos * l, cy - sin * l);
stops.forEach(function (stop) {
gradient_2.addColorStop(stop.offset, stop.color);
});
return gradient_2;
}
return 'black';
};
return LinearGradient;
}(gradient_1.Gradient));
exports.LinearGradient = LinearGradient;
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