psmith      2003/08/31 19:03:30

  Added:       src/java/org/apache/log4j/chainsaw LoggerNameTree.java
  Log:
  New Tree component that that is used for Logger names.
  
  Revision  Changes    Path
  1.1                  
jakarta-log4j/src/java/org/apache/log4j/chainsaw/LoggerNameTree.java
  
  Index: LoggerNameTree.java
  ===================================================================
  /*
   * ============================================================================
   *                   The Apache Software License, Version 1.1
   * ============================================================================
   *
   *    Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modifica-
   * tion, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of  source code must  retain the above copyright  notice,
   *    this list of conditions and the following disclaimer.
   *
   * 2. 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.
   *
   * 3. The end-user documentation included with the redistribution, if any, must
   *    include  the following  acknowledgment:  "This product includes  software
   *    developed  by the  Apache Software Foundation  (http://www.apache.org/)."
   *    Alternately, this  acknowledgment may  appear in the software itself,  if
   *    and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "log4j" and  "Apache Software Foundation"  must not be used to
   *    endorse  or promote  products derived  from this  software without  prior
   *    written permission. For written permission, please contact
   *    [EMAIL PROTECTED]
   *
   * 5. Products  derived from this software may not  be called "Apache", nor may
   *    "Apache" appear  in their name,  without prior written permission  of the
   *    Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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
   * APACHE SOFTWARE  FOUNDATION  OR ITS CONTRIBUTORS  BE LIABLE FOR  ANY DIRECT,
   * INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLU-
   * DING, 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.
   *
   * This software  consists of voluntary contributions made  by many individuals
   * on  behalf of the Apache Software  Foundation.  For more  information on the
   * Apache Software Foundation, please see <http://www.apache.org/>.
   *
   */
  
  /*
   */
  package org.apache.log4j.chainsaw;
  
  import java.awt.Dimension;
  
  import javax.swing.JTree;
  import javax.swing.event.TreeModelEvent;
  import javax.swing.event.TreeModelListener;
  import javax.swing.tree.DefaultMutableTreeNode;
  import javax.swing.tree.DefaultTreeCellRenderer;
  import javax.swing.tree.TreeModel;
  
  
  /**
   * LoggerNameTree is used to display a TreeModel of LoggerNames.
   * 
   * @author Paul Smith <[EMAIL PROTECTED]>
   */
  public class LoggerNameTree extends JTree {
    LoggerNameTree(TreeModel model) {
      super(model);
      setPreferredSize(new Dimension(320, 240));
  
      //    ============================================
      //    TODO remove this WIP node once we're statisfied
      DefaultMutableTreeNode root = (DefaultMutableTreeNode) model.getRoot();
  
      DefaultMutableTreeNode node =
        new DefaultMutableTreeNode("Work in Progress...");
      node.setAllowsChildren(false);
  
      root.add(node);
  
      //  ============================================
      model.addTreeModelListener(
        new TreeModelListener() {
          public void treeNodesChanged(TreeModelEvent e) {
            ensureRootExpanded();
          }
  
          public void treeNodesInserted(TreeModelEvent e) {
            ensureRootExpanded();
          }
  
          public void treeNodesRemoved(TreeModelEvent e) {
            ensureRootExpanded();
          }
  
          private void ensureRootExpanded() {
            expandRow(0);
          }
  
          public void treeStructureChanged(TreeModelEvent e) {
            ensureRootExpanded();
          }
        });
  
      setEditable(false);
  
      setCellRenderer(new LoggerNameTreeCellRenderer());
    }
  
    /**
     * 
     * @author Paul Smith <[EMAIL PROTECTED]>
     *
     */
    private static class LoggerNameTreeCellRenderer
      extends DefaultTreeCellRenderer {
      private LoggerNameTreeCellRenderer() {
        super();
        setLeafIcon(getDefaultOpenIcon());
  
        //      setClosedIcon(null);
        //      setOpenIcon(null);
      }
    }
  }
  
  
  

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