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398 lines
15 KiB
JavaScript
398 lines
15 KiB
JavaScript
var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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/**
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* @module ol/style/Icon
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*/
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import EventType from '../events/EventType.js';
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import IconAnchorUnits from './IconAnchorUnits.js';
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import IconOrigin from './IconOrigin.js';
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import ImageState from '../ImageState.js';
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import ImageStyle from './Image.js';
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import { asArray } from '../color.js';
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import { assert } from '../asserts.js';
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import { get as getIconImage } from './IconImage.js';
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import { getUid } from '../util.js';
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/**
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* @typedef {Object} Options
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* @property {Array<number>} [anchor=[0.5, 0.5]] Anchor. Default value is the icon center.
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* @property {import("./IconOrigin.js").default} [anchorOrigin='top-left'] Origin of the anchor: `bottom-left`, `bottom-right`,
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* `top-left` or `top-right`.
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* @property {import("./IconAnchorUnits.js").default} [anchorXUnits='fraction'] Units in which the anchor x value is
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* specified. A value of `'fraction'` indicates the x value is a fraction of the icon. A value of `'pixels'` indicates
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* the x value in pixels.
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* @property {import("./IconAnchorUnits.js").default} [anchorYUnits='fraction'] Units in which the anchor y value is
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* specified. A value of `'fraction'` indicates the y value is a fraction of the icon. A value of `'pixels'` indicates
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* the y value in pixels.
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* @property {import("../color.js").Color|string} [color] Color to tint the icon. If not specified,
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* the icon will be left as is.
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* @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that you must provide a
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* `crossOrigin` value if you want to access pixel data with the Canvas renderer.
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* See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
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* @property {HTMLImageElement|HTMLCanvasElement} [img] Image object for the icon. If the `src` option is not provided then the
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* provided image must already be loaded. And in that case, it is required
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* to provide the size of the image, with the `imgSize` option.
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* @property {Array<number>} [offset=[0, 0]] Offset, which, together with the size and the offset origin, define the
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* sub-rectangle to use from the original icon image.
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* @property {Array<number>} [displacement=[0,0]] Displacement of the icon.
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* @property {import("./IconOrigin.js").default} [offsetOrigin='top-left'] Origin of the offset: `bottom-left`, `bottom-right`,
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* `top-left` or `top-right`.
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* @property {number} [opacity=1] Opacity of the icon.
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* @property {number|import("../size.js").Size} [scale=1] Scale.
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* @property {boolean} [rotateWithView=false] Whether to rotate the icon with the view.
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* @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).
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* @property {import("../size.js").Size} [size] Icon size in pixel. Can be used together with `offset` to define the
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* sub-rectangle to use from the origin (sprite) icon image.
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* @property {import("../size.js").Size} [imgSize] Image size in pixels. Only required if `img` is set and `src` is not, and
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* for SVG images in Internet Explorer 11. The provided `imgSize` needs to match the actual size of the image.
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* @property {string} [src] Image source URI.
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* @property {"declutter"|"obstacle"|"none"|undefined} [declutterMode] Declutter mode
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*/
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/**
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* @classdesc
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* Set icon style for vector features.
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* @api
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*/
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var Icon = /** @class */ (function (_super) {
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__extends(Icon, _super);
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/**
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* @param {Options} [opt_options] Options.
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*/
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function Icon(opt_options) {
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var _this = this;
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var options = opt_options || {};
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/**
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* @type {number}
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*/
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var opacity = options.opacity !== undefined ? options.opacity : 1;
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/**
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* @type {number}
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*/
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var rotation = options.rotation !== undefined ? options.rotation : 0;
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/**
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* @type {number|import("../size.js").Size}
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*/
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var scale = options.scale !== undefined ? options.scale : 1;
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/**
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* @type {boolean}
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*/
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var rotateWithView = options.rotateWithView !== undefined ? options.rotateWithView : false;
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_this = _super.call(this, {
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opacity: opacity,
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rotation: rotation,
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scale: scale,
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displacement: options.displacement !== undefined ? options.displacement : [0, 0],
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rotateWithView: rotateWithView,
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declutterMode: options.declutterMode,
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}) || this;
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/**
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* @private
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* @type {Array<number>}
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*/
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_this.anchor_ = options.anchor !== undefined ? options.anchor : [0.5, 0.5];
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/**
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* @private
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* @type {Array<number>}
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*/
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_this.normalizedAnchor_ = null;
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/**
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* @private
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* @type {import("./IconOrigin.js").default}
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*/
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_this.anchorOrigin_ =
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options.anchorOrigin !== undefined
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? options.anchorOrigin
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: IconOrigin.TOP_LEFT;
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/**
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* @private
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* @type {import("./IconAnchorUnits.js").default}
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*/
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_this.anchorXUnits_ =
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options.anchorXUnits !== undefined
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? options.anchorXUnits
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: IconAnchorUnits.FRACTION;
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/**
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* @private
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* @type {import("./IconAnchorUnits.js").default}
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*/
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_this.anchorYUnits_ =
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options.anchorYUnits !== undefined
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? options.anchorYUnits
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: IconAnchorUnits.FRACTION;
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/**
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* @private
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* @type {?string}
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*/
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_this.crossOrigin_ =
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options.crossOrigin !== undefined ? options.crossOrigin : null;
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/**
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* @type {HTMLImageElement|HTMLCanvasElement}
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*/
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var image = options.img !== undefined ? options.img : null;
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/**
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* @private
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* @type {import("../size.js").Size|undefined}
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*/
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_this.imgSize_ = options.imgSize;
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/**
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* @type {string|undefined}
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*/
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var src = options.src;
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assert(!(src !== undefined && image), 4); // `image` and `src` cannot be provided at the same time
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assert(!image || (image && _this.imgSize_), 5); // `imgSize` must be set when `image` is provided
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if ((src === undefined || src.length === 0) && image) {
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src = /** @type {HTMLImageElement} */ (image).src || getUid(image);
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}
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assert(src !== undefined && src.length > 0, 6); // A defined and non-empty `src` or `image` must be provided
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/**
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* @type {import("../ImageState.js").default}
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*/
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var imageState = options.src !== undefined ? ImageState.IDLE : ImageState.LOADED;
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/**
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* @private
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* @type {import("../color.js").Color}
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*/
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_this.color_ = options.color !== undefined ? asArray(options.color) : null;
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/**
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* @private
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* @type {import("./IconImage.js").default}
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*/
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_this.iconImage_ = getIconImage(image,
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/** @type {string} */ (src), _this.imgSize_ !== undefined ? _this.imgSize_ : null, _this.crossOrigin_, imageState, _this.color_);
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/**
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* @private
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* @type {Array<number>}
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*/
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_this.offset_ = options.offset !== undefined ? options.offset : [0, 0];
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/**
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* @private
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* @type {import("./IconOrigin.js").default}
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*/
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_this.offsetOrigin_ =
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options.offsetOrigin !== undefined
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? options.offsetOrigin
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: IconOrigin.TOP_LEFT;
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/**
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* @private
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* @type {Array<number>}
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*/
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_this.origin_ = null;
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/**
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* @private
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* @type {import("../size.js").Size}
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*/
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_this.size_ = options.size !== undefined ? options.size : null;
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return _this;
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}
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/**
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* Clones the style. The underlying Image/HTMLCanvasElement is not cloned.
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* @return {Icon} The cloned style.
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* @api
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*/
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Icon.prototype.clone = function () {
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var scale = this.getScale();
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return new Icon({
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anchor: this.anchor_.slice(),
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anchorOrigin: this.anchorOrigin_,
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anchorXUnits: this.anchorXUnits_,
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anchorYUnits: this.anchorYUnits_,
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color: this.color_ && this.color_.slice
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? this.color_.slice()
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: this.color_ || undefined,
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crossOrigin: this.crossOrigin_,
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imgSize: this.imgSize_,
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offset: this.offset_.slice(),
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offsetOrigin: this.offsetOrigin_,
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opacity: this.getOpacity(),
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rotateWithView: this.getRotateWithView(),
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rotation: this.getRotation(),
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scale: Array.isArray(scale) ? scale.slice() : scale,
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size: this.size_ !== null ? this.size_.slice() : undefined,
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src: this.getSrc(),
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displacement: this.getDisplacement().slice(),
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declutterMode: this.getDeclutterMode(),
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});
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};
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/**
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* Get the anchor point in pixels. The anchor determines the center point for the
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* symbolizer.
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* @return {Array<number>} Anchor.
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* @api
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*/
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Icon.prototype.getAnchor = function () {
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var anchor = this.normalizedAnchor_;
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if (!anchor) {
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anchor = this.anchor_;
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var size = this.getSize();
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if (this.anchorXUnits_ == IconAnchorUnits.FRACTION ||
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this.anchorYUnits_ == IconAnchorUnits.FRACTION) {
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if (!size) {
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return null;
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}
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anchor = this.anchor_.slice();
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if (this.anchorXUnits_ == IconAnchorUnits.FRACTION) {
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anchor[0] *= size[0];
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}
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if (this.anchorYUnits_ == IconAnchorUnits.FRACTION) {
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anchor[1] *= size[1];
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}
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}
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if (this.anchorOrigin_ != IconOrigin.TOP_LEFT) {
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if (!size) {
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return null;
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}
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if (anchor === this.anchor_) {
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anchor = this.anchor_.slice();
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}
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if (this.anchorOrigin_ == IconOrigin.TOP_RIGHT ||
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this.anchorOrigin_ == IconOrigin.BOTTOM_RIGHT) {
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anchor[0] = -anchor[0] + size[0];
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}
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if (this.anchorOrigin_ == IconOrigin.BOTTOM_LEFT ||
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this.anchorOrigin_ == IconOrigin.BOTTOM_RIGHT) {
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anchor[1] = -anchor[1] + size[1];
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}
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}
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this.normalizedAnchor_ = anchor;
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}
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var displacement = this.getDisplacement();
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return [anchor[0] - displacement[0], anchor[1] + displacement[1]];
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};
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/**
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* Set the anchor point. The anchor determines the center point for the
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* symbolizer.
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*
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* @param {Array<number>} anchor Anchor.
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* @api
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*/
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Icon.prototype.setAnchor = function (anchor) {
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this.anchor_ = anchor;
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this.normalizedAnchor_ = null;
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};
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/**
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* Get the icon color.
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* @return {import("../color.js").Color} Color.
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* @api
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*/
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Icon.prototype.getColor = function () {
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return this.color_;
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};
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/**
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* Get the image icon.
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* @param {number} pixelRatio Pixel ratio.
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* @return {HTMLImageElement|HTMLCanvasElement} Image or Canvas element.
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* @api
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*/
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Icon.prototype.getImage = function (pixelRatio) {
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return this.iconImage_.getImage(pixelRatio);
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};
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/**
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* Get the pixel ratio.
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* @param {number} pixelRatio Pixel ratio.
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* @return {number} The pixel ratio of the image.
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* @api
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*/
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Icon.prototype.getPixelRatio = function (pixelRatio) {
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return this.iconImage_.getPixelRatio(pixelRatio);
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};
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/**
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* @return {import("../size.js").Size} Image size.
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*/
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Icon.prototype.getImageSize = function () {
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return this.iconImage_.getSize();
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};
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/**
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* @return {import("../ImageState.js").default} Image state.
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*/
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Icon.prototype.getImageState = function () {
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return this.iconImage_.getImageState();
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};
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/**
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* @return {HTMLImageElement|HTMLCanvasElement} Image element.
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*/
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Icon.prototype.getHitDetectionImage = function () {
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return this.iconImage_.getHitDetectionImage();
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};
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/**
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* Get the origin of the symbolizer.
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* @return {Array<number>} Origin.
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* @api
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*/
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Icon.prototype.getOrigin = function () {
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if (this.origin_) {
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return this.origin_;
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}
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var offset = this.offset_;
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if (this.offsetOrigin_ != IconOrigin.TOP_LEFT) {
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var size = this.getSize();
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var iconImageSize = this.iconImage_.getSize();
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if (!size || !iconImageSize) {
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return null;
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}
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offset = offset.slice();
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if (this.offsetOrigin_ == IconOrigin.TOP_RIGHT ||
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this.offsetOrigin_ == IconOrigin.BOTTOM_RIGHT) {
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offset[0] = iconImageSize[0] - size[0] - offset[0];
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}
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if (this.offsetOrigin_ == IconOrigin.BOTTOM_LEFT ||
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this.offsetOrigin_ == IconOrigin.BOTTOM_RIGHT) {
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offset[1] = iconImageSize[1] - size[1] - offset[1];
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}
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}
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this.origin_ = offset;
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return this.origin_;
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};
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/**
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* Get the image URL.
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* @return {string|undefined} Image src.
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* @api
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*/
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Icon.prototype.getSrc = function () {
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return this.iconImage_.getSrc();
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};
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/**
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* Get the size of the icon (in pixels).
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* @return {import("../size.js").Size} Image size.
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* @api
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*/
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Icon.prototype.getSize = function () {
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return !this.size_ ? this.iconImage_.getSize() : this.size_;
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};
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/**
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* @param {function(import("../events/Event.js").default): void} listener Listener function.
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*/
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Icon.prototype.listenImageChange = function (listener) {
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this.iconImage_.addEventListener(EventType.CHANGE, listener);
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};
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/**
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* Load not yet loaded URI.
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* When rendering a feature with an icon style, the vector renderer will
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* automatically call this method. However, you might want to call this
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* method yourself for preloading or other purposes.
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* @api
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*/
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Icon.prototype.load = function () {
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this.iconImage_.load();
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};
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/**
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* @param {function(import("../events/Event.js").default): void} listener Listener function.
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*/
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Icon.prototype.unlistenImageChange = function (listener) {
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this.iconImage_.removeEventListener(EventType.CHANGE, listener);
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};
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return Icon;
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}(ImageStyle));
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export default Icon;
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//# sourceMappingURL=Icon.js.map
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