org.yccheok.jstock.gui.EnumComboBoxPropertyEditor.java Source code

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Here is the source code for org.yccheok.jstock.gui.EnumComboBoxPropertyEditor.java

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/*
 * MyComboEditor.java
 *
 * Created on May 21, 2007, 4:09 PM
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Copyright (C) 2007 Cheok YanCheng <yccheok@yahoo.com>
 */

package org.yccheok.jstock.gui;

import com.l2fprod.common.beans.editor.*;
import javax.swing.JComboBox;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 *
 * @author yccheok
 */
public class EnumComboBoxPropertyEditor extends ComboBoxPropertyEditor {

    public void setValue(Object value) {
        JComboBox box = (JComboBox) editor;

        // We need to remove the previous items. This is because if a 
        // property panel is having more than 1 enum type property, we
        // may display wrong type of enum.
        box.removeAllItems();

        if (box.getItemCount() == 0) {
            try {
                java.lang.reflect.Method m = value.getClass().getMethod("values");
                Enum[] array = (Enum[]) m.invoke(null);
                this.setAvailableValues(array);
            } catch (java.lang.NoSuchMethodException exp) {
                log.error(null, exp);
            } catch (java.lang.IllegalAccessException exp) {
                log.error(null, exp);
            } catch (java.lang.reflect.InvocationTargetException exp) {
                log.error(null, exp);
            }

        }
        super.setValue(value);
    }

    /** Creates a new instance of EnumComboBoxPropertyEditor */
    public EnumComboBoxPropertyEditor() {
    }

    private static final Log log = LogFactory.getLog(EnumComboBoxPropertyEditor.class);
}