Ptidej-v5.2-master/PADL Creator JavaFile (Eclipse) Tests/data/argouml/trunk/src_new/org/argouml/language/ui/LanguageComboBox.java
// $Id$
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package org.argouml.language.ui;

import java.awt.Dimension;
import java.util.Iterator;

import javax.swing.JComboBox;

import org.apache.log4j.Logger;
import org.argouml.application.events.ArgoEventPump;
import org.argouml.application.events.ArgoEventTypes;
import org.argouml.application.events.ArgoGeneratorEvent;
import org.argouml.application.events.ArgoGeneratorEventListener;
import org.argouml.uml.generator.GeneratorManager;
import org.argouml.uml.generator.Language;

/**
 * This class provides a self-updating language combo box.
 * @author Daniele Tamino
 */
public class LanguageComboBox
    extends JComboBox
    implements ArgoGeneratorEventListener {

    /** logger */
    private static final Logger LOG = Logger.getLogger(LanguageComboBox.class);

    /**
     * The constructor.
     */
    public LanguageComboBox() {
        super();
        setEditable(false);
        setMaximumRowCount(6);

        Dimension d = getPreferredSize();
        d.width = 200;
        setMaximumSize(d);

        ArgoEventPump.addListener(ArgoEventTypes.ANY_GENERATOR_EVENT, this);
        refresh();
    }

    /**
     * @see java.lang.Object#finalize()
     */
    protected void finalize() {
        ArgoEventPump.removeListener(this);
    }

    /**
     * Refresh the combobox contents.
     */
    public void refresh() {
        removeAllItems();
        Iterator iterator =
            GeneratorManager.getInstance().getLanguages().iterator();
        while (iterator.hasNext()) {
            try {
                Language ll = (Language) iterator.next();
                addItem(ll);
            } catch (Exception e) {
                LOG.error("Unexpected exception", e);
            }
        }
        setVisible(true);
        invalidate();
    }

    /**
     * @see org.argouml.application.events.ArgoGeneratorEventListener#generatorChanged(org.argouml.application.events.ArgoGeneratorEvent)
     */
    public void generatorChanged(ArgoGeneratorEvent e) {
        refresh();
    }

    /**
     * @see org.argouml.application.events.ArgoGeneratorEventListener#generatorAdded(org.argouml.application.events.ArgoGeneratorEvent)
     */
    public void generatorAdded(ArgoGeneratorEvent e) {
        refresh();
    }

    /**
     * @see org.argouml.application.events.ArgoGeneratorEventListener#generatorRemoved(org.argouml.application.events.ArgoGeneratorEvent)
     */
    public void generatorRemoved(ArgoGeneratorEvent e) {
        refresh();
    }
}
