1 package fr.ifremer.dali.ui.swing.util.map.layer; 2 3 /*- 4 * #%L 5 * Dali :: UI 6 * $Id:$ 7 * $HeadURL:$ 8 * %% 9 * Copyright (C) 2014 - 2017 Ifremer 10 * %% 11 * This program is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Affero General Public License as published by 13 * the Free Software Foundation, either version 3 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU Affero General Public License 22 * along with this program. If not, see <http://www.gnu.org/licenses/>. 23 * #L% 24 */ 25 26 import org.geotools.geometry.jts.ReferencedEnvelope; 27 import org.geotools.map.Layer; 28 29 import java.util.List; 30 31 /** 32 * A layer collection used to group layers from a data object 33 * 34 * @author peck7 on 12/06/2017. 35 */ 36 public interface DataLayerCollection { 37 38 /** 39 * Get all existing layers in this collection 40 * @return all layers 41 */ 42 List<Layer> getLayers(); 43 44 /** 45 * Calculate the envelope of this collection 46 * @return the envelope 47 */ 48 default ReferencedEnvelope getEnvelope() { 49 ReferencedEnvelope envelope = new ReferencedEnvelope(); 50 for (Layer layer : getLayers()) { 51 envelope.expandToInclude(layer.getBounds()); 52 } 53 return envelope; 54 } 55 56 }