@itwin/measure-tools-react/lib/api/MeasurementCachedGraphicsHandler.js

Frontend framework and tools for measurements

import { IModelApp } from "@itwin/core-frontend";
/** Handles forwarding a cached graphics decorate call for measurements. Note this is package internal and not meant to be exposed as public API. */
export class MeasurementCachedGraphicsHandler {
    static get instance() {
        if (!this._instance)
            this._instance = new MeasurementCachedGraphicsHandler();
        return this._instance;
    }
    get useCachedDecorations() { return true; }
    decorate(context) {
        if (this._onDecorateCallback)
            this._onDecorateCallback(context);
    }
    setDecorateCallback(callback) {
        this._onDecorateCallback = callback;
    }
    startDecorator() {
        if (this._dropCallback)
            return;
        this._dropCallback = IModelApp.viewManager.addDecorator(this);
    }
    stopDecorator() {
        if (this._dropCallback) {
            this._dropCallback();
            this._dropCallback = undefined;
        }
    }
    invalidateDecorations(vp) {
        if (!vp) {
            IModelApp.viewManager.invalidateCachedDecorationsAllViews(this);
        }
        else {
            vp.invalidateCachedDecorations(this);
        }
    }
}
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