/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements.  See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License.  You may obtain a copy of the License at *  *      http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.log4j.lf5.viewer.categoryexplorer;import javax.swing.*;import javax.swing.tree.DefaultTreeCellRenderer;import java.awt.*;import java.net.URL;/** * CategoryNodeRenderer * * @author Michael J. Sikorsky * @author Robert Shaw */// Contributed by ThoughtWorks Inc.public class CategoryNodeRenderer extends DefaultTreeCellRenderer {  private static final long serialVersionUID = -6046702673278595048L;  //--------------------------------------------------------------------------  //   Constants:  //--------------------------------------------------------------------------  public static final Color FATAL_CHILDREN = new Color(189, 113, 0);  //--------------------------------------------------------------------------  //   Protected Variables:  //--------------------------------------------------------------------------  protected JCheckBox _checkBox = new JCheckBox();  protected JPanel _panel = new JPanel();  protected static ImageIcon _sat = null;//   protected JLabel              _label  = new JLabel();  //--------------------------------------------------------------------------  //   Private Variables:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Constructors:  //--------------------------------------------------------------------------  public CategoryNodeRenderer() {    _panel.setBackground(UIManager.getColor("Tree.textBackground"));    if (_sat == null) {      // Load the satellite image.      String resource =          "/org/apache/log4j/lf5/viewer/images/channelexplorer_satellite.gif";      URL satURL = getClass().getResource(resource);      _sat = new ImageIcon(satURL);    }    setOpaque(false);    _checkBox.setOpaque(false);    _panel.setOpaque(false);    // The flowlayout set to LEFT is very important so that the editor    // doesn't jump around.    _panel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));    _panel.add(_checkBox);    _panel.add(this);    setOpenIcon(_sat);    setClosedIcon(_sat);    setLeafIcon(_sat);  }  //--------------------------------------------------------------------------  //   Public Methods:  //--------------------------------------------------------------------------  public Component getTreeCellRendererComponent(      JTree tree, Object value,      boolean selected, boolean expanded,      boolean leaf, int row,      boolean hasFocus) {    CategoryNode node = (CategoryNode) value;    //FileNode node = (FileNode)value;    //String s = tree.convertValueToText(value, selected,    //						   expanded, leaf, row, hasFocus);    super.getTreeCellRendererComponent(        tree, value, selected, expanded,        leaf, row, hasFocus);    if (row == 0) {      // Root row -- no check box      _checkBox.setVisible(false);    } else {      _checkBox.setVisible(true);      _checkBox.setSelected(node.isSelected());    }    String toolTip = buildToolTip(node);    _panel.setToolTipText(toolTip);    if (node.hasFatalChildren()) {      this.setForeground(FATAL_CHILDREN);    }    if (node.hasFatalRecords()) {      this.setForeground(Color.red);    }    return _panel;  }  public Dimension getCheckBoxOffset() {    return new Dimension(0, 0);  }  //--------------------------------------------------------------------------  //   Protected Methods:  //--------------------------------------------------------------------------  protected String buildToolTip(CategoryNode node) {    StringBuffer result = new StringBuffer();    result.append(node.getTitle()).append(" contains a total of ");    result.append(node.getTotalNumberOfRecords());    result.append(" LogRecords.");    result.append(" Right-click for more info.");    return result.toString();  }  //--------------------------------------------------------------------------  //   Private Methods:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Nested Top-Level Classes or Interfaces:  //--------------------------------------------------------------------------}