poc-igeom-karla/src/app/core/drawers/layer.js

/*
 * iGeom by LInE
 * Free software to student private data
 *
 * http://www.matematica.br/igeom
 * http://www.usp.br/line
 *
 * ./app/core/drawers/layer.js
 * @version 2023/01/27
 */

import Konva from "konva";
import { ActionManager } from "../models/application/actions/action-manager";

export class Layer {

  // @calledby app/core/drawers/stage.js: createLayer(): const layer = new Layer(sequence, new Konva.Layer());
  constructor (id, konvaLayer) {
    console.log("layer.js!constructor(.): id=" + id);
    this.id = id;
    this.name = "new_construction_" + this.id;
    this.konvaLayer = konvaLayer;
    this.aggregators = [];
    this.selectedAggregators = [];
    this.konvaGroup = new Konva.Group({
      draggable: false,
      resizeEnabled: false
      });
    this.konvaLayer.add(this.konvaGroup);
    this.actionManager = new ActionManager();
    }

  getKonvaGroup () {
    return this.konvaGroup;
    }

  getKonvaLayer () {
    return this.konvaLayer;
    }

  addAggregator (aggregator) {
    this.aggregators.push(aggregator);
    }

  getAggregators () {
    return this.aggregators;
    }

  getSelectedAggregators () {
    return this.selectedAggregators;
    }

  setSelectedAggregator (aggregator) {
    if (!this.selectedAggregators.includes(aggregator)) {
      this.selectedAggregators.push(aggregator);
      }
    }

  removeSelectedAggregator (aggregator) {
    if (this.selectedAggregators.includes(aggregator)) {
      let index = this.selectedAggregators.indexOf(aggregator);
      this.selectedAggregators.splice(index, 1);
      }
    }

  removeAggregator (aggregator) {
    console.info("aggregator", aggregator);
    let index = this.aggregators.indexOf(aggregator);
    this.aggregators.splice(index, 1);
    if (this.selectedAggregators.includes(aggregator)) {
      let index = this.selectedAggregators.indexOf(aggregator);
      this.selectedAggregators.splice(index, 1);
      }
    this.actionManager.remove(aggregator.genericObject);
    aggregator.konvaObject.destroy();
    }

  } // export class Layer