gvsig-tools / org.gvsig.tools / library / trunk / org.gvsig.tools / org.gvsig.tools.swing / org.gvsig.tools.swing.impl / src / main / java / org / gvsig / tools / swing / impl / dynobject / set / DefaultJDynObjectSetComponent.java @ 270
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.tools.swing.impl.dynobject.set; |
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import java.awt.BorderLayout; |
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import java.awt.event.ActionEvent; |
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import javax.swing.AbstractAction; |
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import javax.swing.Action; |
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import javax.swing.Box; |
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import javax.swing.Icon; |
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import javax.swing.JComponent; |
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import javax.swing.JLabel; |
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import javax.swing.JPanel; |
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import javax.swing.JToolBar; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.dynobject.DynObjectSet; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.observer.Observable; |
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import org.gvsig.tools.observer.Observer; |
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import org.gvsig.tools.service.Manager; |
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import org.gvsig.tools.swing.api.ToolsSwingLocator; |
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import org.gvsig.tools.swing.api.dynobject.DynObjectSwingManager; |
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import org.gvsig.tools.swing.api.dynobject.JDynObjectComponent; |
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import org.gvsig.tools.swing.api.dynobject.set.JDynObjectSetComponent; |
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/**
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* Default {@link JDynObjectSetComponent} implementation using a
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* {@link DynObjectSetModel}.
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*
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* @author gvSIG Team
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* @version $Id$
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*/
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public class DefaultJDynObjectSetComponent extends JPanel implements |
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JDynObjectSetComponent, Observer {
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private static final long serialVersionUID = -741238766386344850L; |
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private static final Logger LOG = |
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LoggerFactory.getLogger(DefaultJDynObjectSetComponent.class); |
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private final DynObjectSetModel model; |
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private final DynObjectSwingManager manager; |
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private AbstractEnableAction firstAction;
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private AbstractEnableAction previousAction;
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private JLabel pageCountLabel; |
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private AbstractEnableAction nextAction;
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private AbstractEnableAction lastAction;
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private JDynObjectComponent component;
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/**
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* Creates a new {@link DefaultJDynObjectSetComponent}.
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*
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* @param set
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* to render
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* @param manager
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* which manages this component
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* @throws BaseException
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* if there is an error creating the component
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*/
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public DefaultJDynObjectSetComponent(DynObjectSet set,
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DynObjectSwingManager manager) throws BaseException {
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this(set, manager, true); |
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} |
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/**
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* Creates a new {@link DefaultJDynObjectSetComponent}.
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*
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* @param set
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* to render
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* @param manager
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* which manages this component
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* @param isDoubleBuffered
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* a boolean, true for double-buffering, which
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* uses additional memory space to achieve fast, flicker-free
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* updates
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* @throws BaseException
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* if there is an error creating the component
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*/
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public DefaultJDynObjectSetComponent(DynObjectSet set,
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DynObjectSwingManager manager, boolean isDoubleBuffered)
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throws BaseException {
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super(new BorderLayout(), isDoubleBuffered); |
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this.model = new DynObjectSetModel(set); |
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model.addObserver(this);
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this.manager = manager;
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initializeGUI(); |
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} |
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/**
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* Initializes the GUI.
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*/
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private void initializeGUI() { |
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addDynObjectViewer(); |
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addDynObjectPager(); |
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} |
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private void addDynObjectPager() { |
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JToolBar toolBar = new JToolBar(); |
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toolBar.setRollover(true);
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toolBar.setFloatable(false);
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// Add horizontal glues to center the buttons
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toolBar.add(Box.createHorizontalGlue());
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toolBar.add(getFirstAction()); |
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toolBar.add(getPreviousAction()); |
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toolBar.addSeparator(); |
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toolBar.add(getPageCount()); |
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toolBar.addSeparator(); |
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toolBar.add(getNextAction()); |
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toolBar.add(getLastAction()); |
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toolBar.add(Box.createHorizontalGlue());
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add(toolBar, BorderLayout.SOUTH);
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} |
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@SuppressWarnings("serial") |
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private Action getFirstAction() { |
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if (firstAction == null) { |
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// TODO: replace the button text with an Icon
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firstAction = new AbstractEnableAction("<<") { |
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public void actionPerformed(ActionEvent e) { |
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model.first(); |
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} |
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public boolean isEnabled() { |
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return model.hasPrevious();
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}; |
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}; |
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firstAction.putValue(Action.SHORT_DESCRIPTION, "Go to first value"); |
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firstAction.checkEnabled(); |
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} |
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return firstAction;
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} |
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@SuppressWarnings("serial") |
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private Action getPreviousAction() { |
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if (previousAction == null) { |
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// TODO: replace the button text with an Icon
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previousAction = new AbstractEnableAction("<") { |
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public void actionPerformed(ActionEvent e) { |
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model.previous(); |
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} |
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public boolean isEnabled() { |
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return model.hasPrevious();
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}; |
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}; |
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previousAction.checkEnabled(); |
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previousAction.putValue(Action.SHORT_DESCRIPTION,
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"Go to previous value");
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} |
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return previousAction;
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} |
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private JLabel getPageCount() { |
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if (pageCountLabel == null) { |
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pageCountLabel = new JLabel(); |
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updatePageCountLabel(); |
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} |
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return pageCountLabel;
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} |
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/**
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*
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*/
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private void updatePageCountLabel() { |
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StringBuffer buffer = new StringBuffer(); |
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buffer.append(model.getCurrentPosition() + 1).append('/').append( |
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model.getSize()); |
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pageCountLabel.setText(buffer.toString()); |
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} |
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@SuppressWarnings("serial") |
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private Action getNextAction() { |
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if (nextAction == null) { |
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// TODO: replace the button text with an Icon
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nextAction = new AbstractEnableAction(">") { |
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public void actionPerformed(ActionEvent e) { |
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model.next(); |
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} |
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public boolean isEnabled() { |
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return model.hasNext();
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}; |
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}; |
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nextAction.checkEnabled(); |
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nextAction.putValue(Action.SHORT_DESCRIPTION,
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"Go to following value");
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} |
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return nextAction;
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} |
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@SuppressWarnings("serial") |
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private Action getLastAction() { |
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if (lastAction == null) { |
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// TODO: replace the button text with an Icon
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lastAction = new AbstractEnableAction(">>") { |
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public void actionPerformed(ActionEvent e) { |
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model.last(); |
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} |
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public boolean isEnabled() { |
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return model.hasNext();
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}; |
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}; |
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lastAction.checkEnabled(); |
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lastAction.putValue(Action.SHORT_DESCRIPTION, "Go to last value"); |
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} |
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return lastAction;
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} |
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private void addDynObjectViewer() { |
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try {
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component = |
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ToolsSwingLocator.getDynObjectSwingManager() |
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.createJDynObjectComponent(model.getCurrentDynObject()); |
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add(component.asJComponent(), BorderLayout.CENTER);
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} catch (BaseException e) {
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LOG.error( |
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"Error creating the component to view the current DynObject in"
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+ " position: " + model.getCurrentPosition(), e);
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} |
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} |
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public Manager getManager() {
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return manager;
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} |
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public JComponent asJComponent() { |
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return this; |
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} |
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public DynObjectSet getDynObjectSet() {
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return model.getDynObjectSet();
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} |
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public void update(Observable observable, Object notification) { |
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// When the model changes the current DynObject, update the contained
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// components status
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updateDynObjectPager(); |
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updateDynObjectViewer(); |
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} |
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/**
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* Updates the status of the {@link DynObject} viewer when the model changes
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* the current DynObject.
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*/
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private void updateDynObjectViewer() { |
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remove(component.asJComponent()); |
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addDynObjectViewer(); |
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repaint(); |
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} |
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/**
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* Updates the status of the tool bar when the model changes the
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* current DynObject.
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*/
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private void updateDynObjectPager() { |
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firstAction.checkEnabled(); |
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previousAction.checkEnabled(); |
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nextAction.checkEnabled(); |
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lastAction.checkEnabled(); |
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StringBuffer buffer = new StringBuffer(); |
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buffer.append(model.getCurrentPosition() + 1).append('/').append( |
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model.getSize()); |
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pageCountLabel.setText(buffer.toString()); |
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revalidate(); |
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repaint(); |
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} |
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/**
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* Utility Action extension which adds a new checkEnabled() method to
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* set enabled or not depending on the isEnabled() method implementation.
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* That will only work as expected if the isEnabled() method implementation
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* is changed.
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*
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* @author gvSIG Team
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* @version $Id$
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*/
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@SuppressWarnings("serial") |
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private static abstract class AbstractEnableAction extends AbstractAction { |
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public AbstractEnableAction(Icon icon) { |
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super(null, icon); |
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} |
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public AbstractEnableAction(String name) { |
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super(name);
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} |
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public void checkEnabled() { |
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setEnabled(isEnabled()); |
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} |
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} |
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} |