svn-gvsig-desktop / tags / v1_0_2_Build_910 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / EventBuffer.java @ 11275
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap; |
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import com.iver.cit.gvsig.fmap.layers.CancelationException; |
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import com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent; |
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import com.iver.cit.gvsig.fmap.layers.LayerCollectionListener; |
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import com.iver.cit.gvsig.fmap.layers.LayerEvent; |
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import com.iver.cit.gvsig.fmap.layers.LayerListener; |
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import com.iver.cit.gvsig.fmap.layers.LayerPositionEvent; |
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import com.iver.cit.gvsig.fmap.layers.LegendListener; |
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import com.iver.cit.gvsig.fmap.layers.SelectionEvent; |
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import com.iver.cit.gvsig.fmap.layers.SelectionListener; |
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import com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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/**
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* Evento sobre el buffer.
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*
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* @author Fernando Gonz?lez Cort?s
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*/
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public class EventBuffer implements LegendListener, LayerCollectionListener, |
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SelectionListener, ViewPortListener, LayerListener {
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private ArrayList events = new ArrayList(); |
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private ArrayList listeners = new ArrayList(); |
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private boolean dispatching = true; |
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/**
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* Pone el buffer en modo acumulaci?n de eventos. Los eventos que se
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* reciban a partir de una llamada a este m?todo ser?n acumulados y no
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* ser?n notificados a los listeners hasta que no se reciba una llamada a
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* endAtomicEvent
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*/
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public void beginAtomicEvent() { |
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dispatching = false;
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} |
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/**
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* Termina la acumulaci?n de eventos y notifica a los l?steners.
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*/
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public void endAtomicEvent() { |
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fireAtomicEventListener(); |
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events.clear(); |
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dispatching = true;
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LegendListener#legendChanged(com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent)
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*/
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public void legendChanged(LegendChangedEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdded(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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*/
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public void layerAdded(LayerCollectionEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoved(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)
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*/
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public void layerMoved(LayerPositionEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoved(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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*/
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public void layerRemoved(LayerCollectionEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdding(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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*/
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public void layerAdding(LayerCollectionEvent e) throws CancelationException { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoving(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)
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*/
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public void layerMoving(LayerPositionEvent e) throws CancelationException { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoving(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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*/
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public void layerRemoving(LayerCollectionEvent e) |
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throws CancelationException {
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#visibilityChanged(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)
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*/
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public void visibilityChanged(LayerCollectionEvent e) |
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throws CancelationException {
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.SelectionListener#selectionChanged(com.iver.cit.gvsig.fmap.layers.SelectionEvent)
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*/
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public void selectionChanged(SelectionEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.ExtentListener#extentChanged(com.iver.cit.gvsig.fmap.ExtentEvent)
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*/
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public void extentChanged(ExtentEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* A?ade un AtomicEventListener a la lista de listener.
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*
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* @param listener AtomicEventListener.
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*
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* @return True si ha sido a?adido correctamente.
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*/
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public boolean addAtomicEventListener(AtomicEventListener listener) { |
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boolean bFound = false; |
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for (int i=0; i < listeners.size(); i++) |
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if (listeners.get(i) == listener)
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bFound = true;
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if (!bFound)
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listeners.add(listener); |
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return true; |
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} |
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/**
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* Borra el AtomicEventListener de la lista de listeners.
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*
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* @param listener AtomicEventListener.
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*
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* @return True si ha sido borrado correctamente.
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*/
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public boolean removeAtomicEventListener(AtomicEventListener listener) { |
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return listeners.remove(listener);
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} |
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/**
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* Ejecuta el m?todo atomicEvent de todos los listeners.
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*/
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private void fireAtomicEventListener() { |
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if (events.size() == 0) |
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return; // No hay eventos que lanzar. |
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for (Iterator i = listeners.iterator(); i.hasNext();) { |
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AtomicEventListener listener = (AtomicEventListener) i.next(); |
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AtomicEvent e = new AtomicEvent(events);
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listener.atomicEvent(e); |
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} |
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events.clear(); |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerListener#visibilityChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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*/
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public void visibilityChanged(LayerEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerListener#activationChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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*/
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public void activationChanged(LayerEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.LayerListener#nameChanged(com.iver.cit.gvsig.fmap.layers.LayerEvent)
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*/
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public void nameChanged(LayerEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.ViewPortListener#backColorChanged(com.iver.cit.gvsig.fmap.ColorEvent)
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*/
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public void backColorChanged(ColorEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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public void editionChanged(LayerEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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public void projectionChanged(ProjectionEvent e) { |
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events.add(e); |
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if (dispatching) {
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fireAtomicEventListener(); |
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} |
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} |
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} |