root / trunk / libraries / libUIComponent / src / org / gvsig / gui / beans / incrementabletask / IncrementableTask.java @ 13136
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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) 2005 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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package org.gvsig.gui.beans.incrementabletask; |
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import java.awt.event.WindowAdapter; |
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import java.awt.event.WindowEvent; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import javax.swing.JOptionPane; |
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import org.gvsig.gui.beans.buttonspanel.ButtonsPanel; |
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import org.gvsig.gui.beans.buttonspanel.ButtonsPanelEvent; |
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import org.gvsig.gui.beans.buttonspanel.ButtonsPanelListener; |
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import org.gvsig.gui.beans.messages.Messages; |
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import org.gvsig.gui.beans.progresspanel.ProgressPanel; |
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/**
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* <code>IncrementableTask</code>. Es un dialogo que contiene un ProgressPanel.
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* Se ejecuta bajo un Thread y va consultando a un objeto de tipo IIncrementable
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* para modificar sus valores.
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*
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* @version 29/03/2007
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* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
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*/
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public class IncrementableTask implements Runnable, ButtonsPanelListener { |
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IIncrementable iIncrementable = null;
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private volatile ProgressPanel progressPanel = null; |
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private volatile Thread blinker = null; |
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private boolean threadSuspended = false; |
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private boolean ended = false; |
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private boolean askOnCancel = true; |
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private ArrayList actionCommandListeners = new ArrayList(); |
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private boolean bDoCallListeners = true; |
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static private int eventId = Integer.MIN_VALUE; |
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/**
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* Constructor del IncrementableTask.
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* @param incrementable
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*/
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public IncrementableTask(IIncrementable incrementable) {
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iIncrementable = incrementable; |
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} |
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/**
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* Inicio del thread para que la ventana vaya consultando por si sola al
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* iIncrementable
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*/
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public void start() { |
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blinker = new Thread(this); |
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blinker.start(); |
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} |
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/**
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* Detiene el proceso de consulta de la ventana.
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*/
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public void stop() { |
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ended = true;
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} |
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/**
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* Este thread va leyendo el porcentaje hasta que se completa el histograma.
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*/
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public synchronized void run() { |
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while (!ended && (iIncrementable.getPercent() <= 100)) { |
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try {
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getProgressPanel().setLabel(iIncrementable.getLabel()); |
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getProgressPanel().setPercent(iIncrementable.getPercent()); |
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getProgressPanel().setTitle(iIncrementable.getTitle()); |
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getProgressPanel().setLog(iIncrementable.getLog()); |
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Thread.sleep(100); |
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synchronized (this) { |
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while (threadSuspended && !ended)
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wait(500);
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} |
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} catch (InterruptedException e) { |
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} |
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} |
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} |
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/**
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* Termina el proceso de lectura de porcentajes y logs de la ventana y
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* cierra esta.
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*/
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public void processFinalize() { |
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stop(); |
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while (isAlive());
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hide(); |
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} |
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/**
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* Ocultar la ventana y parar el proceso
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*/
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private void hide() { |
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getProgressPanel().setVisible(false);
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progressPanel = null;
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blinker = null;
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} |
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/**
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* Devuelve un booleano indicando si esta activa la ventana.
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* @return boolean
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*/
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public boolean isAlive() { |
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return blinker.isAlive();
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} |
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/**
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* Muestra la ventana de incremento con el porcentaje de la construcci?n del
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* histograma.
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*/
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public void showWindow() { |
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getProgressPanel().setTitle(iIncrementable.getTitle()); |
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getProgressPanel().showLog(false);
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getProgressPanel().setVisible(true);
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} |
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/**
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* Devuelve el componente ProgressPanel de la ventana incrementable.
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* @return ProgressPanel
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*/
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private ProgressPanel getProgressPanel() {
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if (progressPanel == null) { |
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progressPanel = new ProgressPanel(false); |
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progressPanel.addButtonPressedListener(this);
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progressPanel.addWindowListener(new WindowAdapter() { |
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public void windowClosing(WindowEvent e) { |
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ended = true;
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callActionCommandListeners(IncrementableEvent.CANCELED); |
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} |
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}); |
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} |
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return progressPanel;
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} |
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private void callActionCommandListeners(int actions) { |
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if (!bDoCallListeners)
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return;
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Iterator acIterator = actionCommandListeners.iterator();
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while (acIterator.hasNext()) {
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IncrementableListener listener = (IncrementableListener) acIterator.next(); |
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switch (actions) {
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case IncrementableEvent.RESUMED:
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listener.actionResumed(new IncrementableEvent(this)); |
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break;
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case IncrementableEvent.SUSPENDED:
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listener.actionSuspended(new IncrementableEvent(this)); |
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break;
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case IncrementableEvent.CANCELED:
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listener.actionCanceled(new IncrementableEvent(this)); |
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break;
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} |
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} |
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eventId++; |
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} |
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/**
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* A?adir el manejador de eventos para atender las peticiones de start,
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* stop...
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*
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* @param listener
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*/
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public void addIncrementableListener(IncrementableListener listener) { |
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if (!actionCommandListeners.contains(listener))
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actionCommandListeners.add(listener); |
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} |
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/**
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* Borrar un manejador de eventos.
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* @param listener
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*/
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public void removeIncrementableListener(IncrementableListener listener) { |
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actionCommandListeners.remove(listener); |
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} |
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/**
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* Definir si queremos que confirme al usuario si realmente desea cancelar el
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* proceso
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*
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* @param value
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*/
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public void setAskCancel(boolean value) { |
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askOnCancel = value; |
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} |
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/**
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* Metodo para gestionar todos los eventos del objeto.
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*/
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public void actionButtonPressed(ButtonsPanelEvent e) { |
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switch (e.getButton()) {
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case ButtonsPanel.BUTTON_CANCEL:
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boolean cancelled = true; |
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if (askOnCancel) {
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cancelled = false;
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String string1 = Messages.getText("si"); |
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String string2 = Messages.getText("no"); |
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Object[] options = { string1, string2 }; |
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int answer = JOptionPane.showOptionDialog(getProgressPanel(), Messages |
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.getText("msg_cancel_incrementable"), Messages
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.getText("title_cancel_incrementable"),
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JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, |
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options, string1); |
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if (answer == JOptionPane.YES_OPTION) |
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cancelled = true;
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} |
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if (cancelled) {
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ended = true;
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callActionCommandListeners(IncrementableEvent.CANCELED); |
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} |
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break;
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case ButtonsPanel.BUTTON_PAUSE:
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threadSuspended = true;
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callActionCommandListeners(IncrementableEvent.SUSPENDED); |
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break;
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case ButtonsPanel.BUTTON_RESTART:
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threadSuspended = false;
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callActionCommandListeners(IncrementableEvent.RESUMED); |
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break;
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} |
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} |
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} |