svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / EventBuffer.java @ 6483
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| 1 | 1100 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | *
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| 19 | * For more information, contact:
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| 20 | *
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| 21 | * Generalitat Valenciana
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| 22 | * Conselleria d'Infraestructures i Transport
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| 23 | * Av. Blasco Ib??ez, 50
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| 24 | * 46010 VALENCIA
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| 25 | * SPAIN
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| 26 | *
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| 27 | * +34 963862235
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| 28 | * gvsig@gva.es
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| 29 | * www.gvsig.gva.es
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| 30 | *
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| 31 | * or
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| 32 | *
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| 33 | * IVER T.I. S.A
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| 34 | * Salamanca 50
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| 35 | * 46005 Valencia
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| 36 | * Spain
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| 37 | *
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| 38 | * +34 963163400
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| 39 | * dac@iver.es
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| 40 | */
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| 41 | 679 | fernando | package com.iver.cit.gvsig.fmap; |
| 42 | |||
| 43 | import com.iver.cit.gvsig.fmap.layers.CancelationException; |
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| 44 | import com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent; |
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| 45 | import com.iver.cit.gvsig.fmap.layers.LayerCollectionListener; |
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| 46 | 727 | fernando | import com.iver.cit.gvsig.fmap.layers.LayerEvent; |
| 47 | import com.iver.cit.gvsig.fmap.layers.LayerListener; |
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| 48 | 679 | fernando | import com.iver.cit.gvsig.fmap.layers.LayerPositionEvent; |
| 49 | import com.iver.cit.gvsig.fmap.layers.LegendListener; |
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| 50 | import com.iver.cit.gvsig.fmap.layers.SelectionEvent; |
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| 51 | import com.iver.cit.gvsig.fmap.layers.SelectionListener; |
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| 52 | import com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent; |
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| 53 | |||
| 54 | import java.util.ArrayList; |
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| 55 | import java.util.Iterator; |
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| 56 | |||
| 57 | |||
| 58 | /**
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| 59 | 1034 | vcaballero | * Evento sobre el buffer.
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| 60 | 679 | fernando | *
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| 61 | * @author Fernando Gonz?lez Cort?s
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| 62 | */
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| 63 | public class EventBuffer implements LegendListener, LayerCollectionListener, |
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| 64 | 956 | vcaballero | SelectionListener, ViewPortListener, LayerListener {
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| 65 | 679 | fernando | private ArrayList events = new ArrayList(); |
| 66 | private ArrayList listeners = new ArrayList(); |
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| 67 | private boolean dispatching = true; |
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| 68 | |||
| 69 | /**
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| 70 | 956 | vcaballero | * Pone el buffer en modo acumulaci?n de eventos. Los eventos que se
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| 71 | * reciban a partir de una llamada a este m?todo ser?n acumulados y no
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| 72 | * ser?n notificados a los listeners hasta que no se reciba una llamada a
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| 73 | * endAtomicEvent
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| 74 | 679 | fernando | */
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| 75 | public void beginAtomicEvent() { |
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| 76 | dispatching = false;
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| 77 | } |
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| 78 | |||
| 79 | /**
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| 80 | 956 | vcaballero | * Termina la acumulaci?n de eventos y notifica a los l?steners.
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| 81 | 679 | fernando | */
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| 82 | public void endAtomicEvent() { |
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| 83 | fireAtomicEventListener(); |
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| 84 | events.clear(); |
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| 85 | dispatching = true;
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| 86 | } |
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| 87 | |||
| 88 | /**
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| 89 | * @see com.iver.cit.gvsig.fmap.layers.LegendListener#legendChanged(com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent)
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| 90 | */
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| 91 | public void legendChanged(LegendChangedEvent e) { |
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| 92 | events.add(e); |
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| 93 | 956 | vcaballero | |
| 94 | if (dispatching) {
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| 95 | fireAtomicEventListener(); |
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| 96 | } |
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| 97 | 679 | fernando | } |
| 98 | |||
| 99 | /**
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| 100 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdded(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 101 | */
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| 102 | public void layerAdded(LayerCollectionEvent e) { |
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| 103 | events.add(e); |
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| 104 | 956 | vcaballero | |
| 105 | if (dispatching) {
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| 106 | fireAtomicEventListener(); |
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| 107 | } |
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| 108 | 679 | fernando | } |
| 109 | |||
| 110 | /**
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| 111 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoved(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)
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| 112 | */
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| 113 | public void layerMoved(LayerPositionEvent e) { |
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| 114 | events.add(e); |
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| 115 | 956 | vcaballero | |
| 116 | if (dispatching) {
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| 117 | fireAtomicEventListener(); |
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| 118 | } |
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| 119 | 679 | fernando | } |
| 120 | |||
| 121 | /**
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| 122 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoved(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 123 | */
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| 124 | public void layerRemoved(LayerCollectionEvent e) { |
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| 125 | events.add(e); |
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| 126 | 956 | vcaballero | |
| 127 | if (dispatching) {
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| 128 | fireAtomicEventListener(); |
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| 129 | } |
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| 130 | 679 | fernando | } |
| 131 | |||
| 132 | /**
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| 133 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdding(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 134 | */
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| 135 | public void layerAdding(LayerCollectionEvent e) throws CancelationException { |
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| 136 | events.add(e); |
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| 137 | 956 | vcaballero | |
| 138 | if (dispatching) {
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| 139 | fireAtomicEventListener(); |
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| 140 | } |
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| 141 | 679 | fernando | } |
| 142 | |||
| 143 | /**
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| 144 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoving(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)
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| 145 | */
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| 146 | public void layerMoving(LayerPositionEvent e) throws CancelationException { |
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| 147 | events.add(e); |
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| 148 | 956 | vcaballero | |
| 149 | if (dispatching) {
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| 150 | fireAtomicEventListener(); |
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| 151 | } |
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| 152 | 679 | fernando | } |
| 153 | |||
| 154 | /**
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| 155 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoving(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 156 | */
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| 157 | public void layerRemoving(LayerCollectionEvent e) |
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| 158 | throws CancelationException {
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| 159 | events.add(e); |
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| 160 | 956 | vcaballero | |
| 161 | if (dispatching) {
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| 162 | fireAtomicEventListener(); |
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| 163 | } |
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| 164 | 679 | fernando | } |
| 165 | |||
| 166 | /**
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| 167 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#activationChanged(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 168 | */
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| 169 | public void activationChanged(LayerCollectionEvent e) |
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| 170 | throws CancelationException {
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| 171 | events.add(e); |
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| 172 | 956 | vcaballero | |
| 173 | if (dispatching) {
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| 174 | fireAtomicEventListener(); |
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| 175 | } |
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| 176 | 679 | fernando | } |
| 177 | |||
| 178 | /**
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| 179 | * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#visibilityChanged(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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| 180 | */
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| 181 | public void visibilityChanged(LayerCollectionEvent e) |
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| 182 | throws CancelationException {
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| 183 | events.add(e); |
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| 184 | 956 | vcaballero | |
| 185 | if (dispatching) {
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| 186 | fireAtomicEventListener(); |
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| 187 | } |
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| 188 | 679 | fernando | } |
| 189 | |||
| 190 | /**
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| 191 | * @see com.iver.cit.gvsig.fmap.layers.SelectionListener#selectionChanged(com.iver.cit.gvsig.fmap.layers.SelectionEvent)
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| 192 | */
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| 193 | public void selectionChanged(SelectionEvent e) { |
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| 194 | events.add(e); |
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| 195 | 956 | vcaballero | |
| 196 | if (dispatching) {
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| 197 | fireAtomicEventListener(); |
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| 198 | } |
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| 199 | 679 | fernando | } |
| 200 | |||
| 201 | /**
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| 202 | * @see com.iver.cit.gvsig.fmap.ExtentListener#extentChanged(com.iver.cit.gvsig.fmap.ExtentEvent)
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| 203 | */
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| 204 | public void extentChanged(ExtentEvent e) { |
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| 205 | events.add(e); |
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| 206 | 956 | vcaballero | |
| 207 | if (dispatching) {
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| 208 | fireAtomicEventListener(); |
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| 209 | } |
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| 210 | 679 | fernando | } |
| 211 | |||
| 212 | /**
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| 213 | 1034 | vcaballero | * A?ade un AtomicEventListener a la lista de listener.
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| 214 | 679 | fernando | *
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| 215 | 1034 | vcaballero | * @param listener AtomicEventListener.
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| 216 | 679 | fernando | *
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| 217 | 1034 | vcaballero | * @return True si ha sido a?adido correctamente.
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| 218 | 679 | fernando | */
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| 219 | public boolean addAtomicEventListener(AtomicEventListener listener) { |
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| 220 | 4147 | fjp | boolean bFound = false; |
| 221 | for (int i=0; i < listeners.size(); i++) |
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| 222 | if (listeners.get(i) == listener)
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| 223 | bFound = true;
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| 224 | if (!bFound)
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| 225 | listeners.add(listener); |
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| 226 | return true; |
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| 227 | 679 | fernando | } |
| 228 | |||
| 229 | /**
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| 230 | 1034 | vcaballero | * Borra el AtomicEventListener de la lista de listeners.
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| 231 | 679 | fernando | *
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| 232 | 1034 | vcaballero | * @param listener AtomicEventListener.
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| 233 | 679 | fernando | *
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| 234 | 1034 | vcaballero | * @return True si ha sido borrado correctamente.
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| 235 | 679 | fernando | */
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| 236 | public boolean removeAtomicEventListener(AtomicEventListener listener) { |
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| 237 | return listeners.remove(listener);
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| 238 | } |
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| 239 | |||
| 240 | /**
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| 241 | 1034 | vcaballero | * Ejecuta el m?todo atomicEvent de todos los listeners.
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| 242 | 679 | fernando | */
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| 243 | private void fireAtomicEventListener() { |
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| 244 | 4147 | fjp | if (events.size() == 0) |
| 245 | return; // No hay eventos que lanzar. |
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| 246 | 679 | fernando | for (Iterator i = listeners.iterator(); i.hasNext();) { |
| 247 | AtomicEventListener listener = (AtomicEventListener) i.next(); |
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| 248 | AtomicEvent e = new AtomicEvent(events);
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| 249 | listener.atomicEvent(e); |
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| 250 | } |
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| 251 | 956 | vcaballero | |
| 252 | 679 | fernando | events.clear(); |
| 253 | } |
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| 254 | 727 | fernando | |
| 255 | /**
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| 256 | * @see com.iver.cit.gvsig.fmap.layers.LayerListener#visibilityChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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| 257 | */
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| 258 | public void visibilityChanged(LayerEvent e) { |
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| 259 | events.add(e); |
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| 260 | 956 | vcaballero | |
| 261 | if (dispatching) {
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| 262 | fireAtomicEventListener(); |
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| 263 | } |
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| 264 | 727 | fernando | } |
| 265 | |||
| 266 | /**
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| 267 | * @see com.iver.cit.gvsig.fmap.layers.LayerListener#activationChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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| 268 | */
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| 269 | public void activationChanged(LayerEvent e) { |
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| 270 | events.add(e); |
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| 271 | 956 | vcaballero | |
| 272 | if (dispatching) {
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| 273 | fireAtomicEventListener(); |
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| 274 | } |
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| 275 | 727 | fernando | } |
| 276 | |||
| 277 | /**
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| 278 | * @see com.iver.cit.gvsig.fmap.layers.LayerListener#nameChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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| 279 | */
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| 280 | public void nameChanged(LayerEvent e) { |
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| 281 | events.add(e); |
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| 282 | 956 | vcaballero | |
| 283 | if (dispatching) {
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| 284 | fireAtomicEventListener(); |
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| 285 | } |
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| 286 | 727 | fernando | } |
| 287 | 956 | vcaballero | |
| 288 | /**
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| 289 | * @see com.iver.cit.gvsig.fmap.ViewPortListener#backColorChanged(com.iver.cit.gvsig.fmap.ColorEvent)
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| 290 | */
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| 291 | public void backColorChanged(ColorEvent e) { |
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| 292 | events.add(e); |
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| 293 | |||
| 294 | if (dispatching) {
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| 295 | 979 | fernando | fireAtomicEventListener(); |
| 296 | 956 | vcaballero | } |
| 297 | } |
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| 298 | 4144 | fjp | |
| 299 | public void editionChanged(LayerEvent e) { |
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| 300 | events.add(e); |
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| 301 | |||
| 302 | if (dispatching) {
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| 303 | fireAtomicEventListener(); |
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| 304 | } |
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| 305 | |||
| 306 | } |
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| 307 | 5939 | jmvivo | |
| 308 | public void projectionChanged(ProjectionEvent e) { |
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| 309 | events.add(e); |
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| 310 | |||
| 311 | if (dispatching) {
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| 312 | fireAtomicEventListener(); |
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| 313 | } |
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| 314 | } |
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| 315 | 679 | fernando | } |