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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 javax.swing.*;
    21  import java.awt.*;
    22  import java.lang.reflect.InvocationTargetException;
    23
    24  /**
    25   * A simple ProgressPanel that can be used, a little more flexible
    26   * than ProgressMonitor when you want it to be shown REGARDLESS
    27   * of any timeouts etc.
    28   *
    29   * @author Paul Smith &lt;psmith@apache.org&gt;
    30   */
    31  public class ProgressPanel extends JPanel {
    32      private final JLabel messageLabel = new JLabel();
    33      private final JProgressBar progressBar;
    34
    35      ProgressPanel(int min, int max, String msg) {
    36          this.progressBar = new JProgressBar(min, max);
    37          setBorder(BorderFactory.createLineBorder(Color.black, 1));
    38          messageLabel.setHorizontalAlignment(SwingConstants.CENTER);
    39          messageLabel.setText(msg);
    40          setLayout(new BorderLayout());
    41
    42          add(progressBar, BorderLayout.CENTER);
    43          add(messageLabel, BorderLayout.SOUTH);
    44      }
    45
    46      public void setMessage(final String string) {
    47          SwingUtilities.invokeLater(
    48              () -> messageLabel.setText(string));
    49      }
    50
    51      public void setProgress(final int progress) {
    52          try {
    53              Runnable runnable = () -> progressBar.setValue(progress);
    54              if (!SwingUtilities.isEventDispatchThread()) {
    55                  SwingUtilities.invokeAndWait(runnable);
    56              } else {
    57                  runnable.run();
    58              }
    59          } catch (InterruptedException | InvocationTargetException e) {
    60              // TODO Auto-generated catch block
    61              e.printStackTrace();
    62          }
    63      }
    64  }