SourceTermAnalysisSystem_vue/node_modules/.vite/deps/chunk-C66424RK.js
2026-05-15 10:22:44 +08:00

162 lines
4.3 KiB
JavaScript

import {
ImageState_default
} from "./chunk-5TDNKDLD.js";
import {
Observable_default,
abstract
} from "./chunk-H47PV7W6.js";
import {
EventType_default
} from "./chunk-KJXIHBKT.js";
// node_modules/ol/renderer/Layer.js
var maxStaleKeys = 5;
var LayerRenderer = class extends Observable_default {
/**
* @param {LayerType} layer Layer.
*/
constructor(layer) {
super();
this.ready = true;
this.boundHandleImageChange_ = this.handleImageChange_.bind(this);
this.layer_ = layer;
this.staleKeys_ = new Array();
this.maxStaleKeys = maxStaleKeys;
}
/**
* @return {Array<string>} Get the list of stale keys.
*/
getStaleKeys() {
return this.staleKeys_;
}
/**
* @param {string} key The new stale key.
*/
prependStaleKey(key) {
this.staleKeys_.unshift(key);
if (this.staleKeys_.length > this.maxStaleKeys) {
this.staleKeys_.length = this.maxStaleKeys;
}
}
/**
* Asynchronous layer level hit detection.
* @param {import("../pixel.js").Pixel} pixel Pixel.
* @return {Promise<Array<import("../Feature").FeatureLike>>} Promise that resolves with
* an array of features.
*/
getFeatures(pixel) {
return abstract();
}
/**
* @param {import("../pixel.js").Pixel} pixel Pixel.
* @return {Uint8ClampedArray|Uint8Array|Float32Array|DataView|null} Pixel data.
*/
getData(pixel) {
return null;
}
/**
* Determine whether render should be called.
* @abstract
* @param {import("../Map.js").FrameState} frameState Frame state.
* @return {boolean} Layer is ready to be rendered.
*/
prepareFrame(frameState) {
return abstract();
}
/**
* Render the layer.
* @abstract
* @param {import("../Map.js").FrameState} frameState Frame state.
* @param {HTMLElement|null} target Target that may be used to render content to.
* @return {HTMLElement} The rendered element.
*/
renderFrame(frameState, target) {
return abstract();
}
/**
* @abstract
* @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
* @param {import("../Map.js").FrameState} frameState Frame state.
* @param {number} hitTolerance Hit tolerance in pixels.
* @param {import("./vector.js").FeatureCallback<T>} callback Feature callback.
* @param {Array<import("./Map.js").HitMatch<T>>} matches The hit detected matches with tolerance.
* @return {T|undefined} Callback result.
* @template T
*/
forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, matches) {
return void 0;
}
/**
* @return {LayerType} Layer.
*/
getLayer() {
return this.layer_;
}
/**
* Perform action necessary to get the layer rendered after new fonts have loaded
* @abstract
*/
handleFontsChanged() {
}
/**
* Handle changes in image state.
* @param {import("../events/Event.js").default} event Image change event.
* @private
*/
handleImageChange_(event) {
const image = (
/** @type {import("../Image.js").default} */
event.target
);
if (image.getState() === ImageState_default.LOADED || image.getState() === ImageState_default.ERROR) {
this.renderIfReadyAndVisible();
}
}
/**
* Load the image if not already loaded, and register the image change
* listener if needed.
* @param {import("../Image.js").default} image Image.
* @return {boolean} `true` if the image is already loaded, `false` otherwise.
* @protected
*/
loadImage(image) {
let imageState = image.getState();
if (imageState != ImageState_default.LOADED && imageState != ImageState_default.ERROR) {
image.addEventListener(EventType_default.CHANGE, this.boundHandleImageChange_);
}
if (imageState == ImageState_default.IDLE) {
image.load();
imageState = image.getState();
}
return imageState == ImageState_default.LOADED;
}
/**
* @protected
*/
renderIfReadyAndVisible() {
const layer = this.getLayer();
if (layer && layer.getVisible() && layer.getSourceState() === "ready") {
layer.changed();
}
}
/**
* @param {import("../Map.js").FrameState} frameState Frame state.
*/
renderDeferred(frameState) {
}
/**
* Clean up.
* @override
*/
disposeInternal() {
delete this.layer_;
super.disposeInternal();
}
};
var Layer_default = LayerRenderer;
export {
Layer_default
};
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