permispolicytextlistcellrenderer.java

一个完整的XACML工程,学习XACML技术的好例子!

/*
* Copyright (c) 2000-2005, University of Salford
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without 
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this 
* list of conditions and the following disclaimer.
* 
* Redistributions in binary form must reproduce the above copyright notice, 
* this list of conditions and the following disclaimer in the documentation 
* and/or other materials provided with the distribution. 
*
* Neither the name of the University of Salford nor the names of its 
* contributors may be used to endorse or promote products derived from this 
* software without specific prior written permission. 
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
* POSSIBILITY OF SUCH DAMAGE.
*/

package issrg.editor.gui;
import java.awt.Component;

import javax.swing.JList;
import javax.swing.JTextArea;
import javax.swing.ListCellRenderer;


/**
 * Classname:   PermisPolicyTextListCellRenderer
 * Description: Provides a method to allow the text in the various view of
 *              the GUI to wrap at the end of lines.
 *              Version 1.0.
 *
 * Copyright (c) authors April 2004
 *
 * @author      Professor D.W.Chadwick
 *              P. Langley
 *              U. Mbanaso
 */

public class PermisPolicyTextListCellRenderer 
                              extends JTextArea 
                              implements ListCellRenderer
{
    
    /**************************************************************************\
     *                           Constructor                                  *
    \**************************************************************************/
    /**
     * Constructor
     */
    
    public PermisPolicyTextListCellRenderer() {
    }
  
    /**************************************************************************\
     *                           getListCellRendererComponent                 *
    \**************************************************************************/
    
    	/**
         *  Formats the text pointed to by the object so that it fits correxctly
         *  in a text area.
         *
         * @param       list            The name of the Jlist to be rendered 
         *                              with carriage returns and line feed.
         * @param       value           The object to be rendered correctly
         * @param       index           Unused - needed for method singnature
         * @param       isSelected      Unused - needed for method singnature
         * @param       cellHasFocus    Unused - needed for method singnature
         *
         * @return                      The correctly rendered component
         */
    	public Component getListCellRendererComponent( JList list, 
                                                       Object value, 
                                                       int index, 
                                                       boolean isSelected, 
                                                       boolean cellHasFocus)
        {
            String s = value.toString();
            setFont(list.getFont());
            setLineWrap(true);
            setWrapStyleWord(true);
            setText(s);
            setEnabled(list.isEnabled());
            setOpaque(true);
            revalidate();
            setSize(getPreferredSize());
            
            return this;
        }

}