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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17
    18  package org.apache.log4j.chainsaw;
    19
    20  import java.awt.BorderLayout;
    21  import java.awt.Color;
    22  import java.lang.reflect.InvocationTargetException;
    23
    24  import javax.swing.BorderFactory;
    25  import javax.swing.JLabel;
    26  import javax.swing.JPanel;
    27  import javax.swing.JProgressBar;
    28  import javax.swing.SwingConstants;
    29  import javax.swing.SwingUtilities;
    30
    31  /**
    32   * A simple ProgressPanel that can be used, a little more flexible
    33   * than ProgressMonitor when you want it to be shown REGARDLESS
    34   * of any timeouts etc.
    35   *
    36   * @author Paul Smith &lt;psmith@apache.org&gt;
    37   *
    38   */
    39  public class ProgressPanel extends JPanel {
    40    private final JLabel messageLabel = new JLabel();
    41    private final JProgressBar progressBar;
    42
    43    ProgressPanel(int min, int max, String msg) {
    44      this.progressBar = new JProgressBar(min, max);
    45      setBorder(BorderFactory.createLineBorder(Color.black, 1));
    46      messageLabel.setHorizontalAlignment(SwingConstants.HORIZONTAL);
    47      messageLabel.setText(msg);
    48      setLayout(new BorderLayout());
    49
    50      add(progressBar, BorderLayout.CENTER);
    51      add(messageLabel, BorderLayout.SOUTH);
    52    }
    53
    54    public void setMessage(final String string) {
    55      SwingUtilities.invokeLater(
    56        new Runnable() {
    57          public void run() {
    58            messageLabel.setText(string);
    59          }
    60        });
    61    }
    62
    63    public void setProgress(final int progress) {
    64      try {
    65        Runnable runnable = new Runnable() {
    66            public void run() {
    67              progressBar.setValue(progress);
    68            }
    69          };
    70      if (!SwingUtilities.isEventDispatchThread()) {
    71          SwingUtilities.invokeAndWait(runnable);
    72      }else {
    73          runnable.run();
    74      }
    75      } catch (InterruptedException e) {
    76        // TODO Auto-generated catch block
    77        e.printStackTrace();
    78      } catch (InvocationTargetException e) {
    79        // TODO Auto-generated catch block
    80        e.printStackTrace();
    81      }
    82    }
    83  }