svn-gvsig-desktop / tags / v1_0_2_Build_905 / libraries / libCq CMS for java.old / src / org / cresques / px / PxLayerList.java @ 10767
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| 1 | 2809 | nacho | /*
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| 2 | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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| 3 | *
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| 4 | * Copyright (C) 2004-5.
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU General Public License
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| 8 | * as published by the Free Software Foundation; either version 2
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| 9 | * of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 19 | *
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| 20 | * For more information, contact:
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| 21 | *
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| 22 | * cresques@gmail.com
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| 23 | */
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| 24 | 2 | luisw | package org.cresques.px; |
| 25 | |||
| 26 | import java.util.Iterator; |
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| 27 | |||
| 28 | 2809 | nacho | |
| 29 | 2 | luisw | public class PxLayerList extends PxObjList { |
| 30 | 2809 | nacho | PxLayer current = null;
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| 31 | |||
| 32 | public PxLayerList() {
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| 33 | super();
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| 34 | } |
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| 35 | |||
| 36 | public void add(PxLayer layer) { |
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| 37 | extent.add(layer.extent); |
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| 38 | super.add(layer);
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| 39 | current = layer; |
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| 40 | } |
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| 41 | |||
| 42 | public PxLayer getByName(String lName) { |
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| 43 | Iterator iter = iterator();
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| 44 | PxLayer layer; |
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| 45 | |||
| 46 | while (iter.hasNext()) {
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| 47 | layer = (PxLayer) iter.next(); |
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| 48 | |||
| 49 | if (layer.getName().compareTo(lName) == 0) { |
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| 50 | return layer;
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| 51 | } |
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| 52 | } |
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| 53 | |||
| 54 | return null; |
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| 55 | } |
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| 56 | |||
| 57 | public boolean isCurrent(PxLayer layer) { |
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| 58 | return current.getId() == layer.getId();
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| 59 | } |
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| 60 | |||
| 61 | public PxLayer getCurrent() {
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| 62 | return current;
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| 63 | } |
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| 64 | |||
| 65 | public void setCurrent(PxLayer layer) { |
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| 66 | current = layer; |
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| 67 | |||
| 68 | if (!current.isVisible()) {
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| 69 | current.setVisible(true);
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| 70 | } |
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| 71 | } |
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| 72 | |||
| 73 | public Extent getExtent() {
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| 74 | Extent ext = new Extent();
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| 75 | PxLayer layer; |
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| 76 | Iterator iter = iterator();
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| 77 | |||
| 78 | while (iter.hasNext()) {
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| 79 | layer = (PxLayer) iter.next(); |
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| 80 | |||
| 81 | if (layer.isVisible()) {
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| 82 | ext.add(layer.extent); |
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| 83 | } |
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| 84 | } |
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| 85 | |||
| 86 | return ext;
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| 87 | } |
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| 88 | } |