/* * 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;import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;/** * LogFactor5InputDialog * * Creates a popup input dialog box so that users can enter * a URL to open a log file from. * * @author Richard Hurst * @author Brad Marlborough */// Contributed by ThoughtWorks Inc.public class LogFactor5InputDialog extends LogFactor5Dialog {  //--------------------------------------------------------------------------  //   Constants:  //--------------------------------------------------------------------------  public static final int SIZE = 30;  //--------------------------------------------------------------------------  //   Protected Variables:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Private Variables:  //--------------------------------------------------------------------------  private JTextField _textField;  //--------------------------------------------------------------------------  //   Constructors:  //--------------------------------------------------------------------------  /**   * Configures an input dialog box using a defualt size for the text field.   * param jframe the frame where the dialog will be loaded from.   * param title the title of the dialog box.   * param label the label to be put in the dialog box.   */  public LogFactor5InputDialog(JFrame jframe, String title, String label) {    this(jframe, title, label, SIZE);  }  /**   * Configures an input dialog box.   * param jframe the frame where the dialog will be loaded from.   * param title the title of the dialog box.   * param label the label to be put in the dialog box.   * param size the size of the text field.   */  public LogFactor5InputDialog(JFrame jframe, String title, String label,      int size) {    super(jframe, title, true);    JPanel bottom = new JPanel();    bottom.setLayout(new FlowLayout());    JPanel main = new JPanel();    main.setLayout(new FlowLayout());    main.add(new JLabel(label));    _textField = new JTextField(size);    main.add(_textField);    addKeyListener(new KeyAdapter() {      public void keyPressed(KeyEvent e) {        if (e.getKeyCode() == KeyEvent.VK_ENTER) {          hide();        }      }    });    JButton ok = new JButton("Ok");    ok.addActionListener(new ActionListener() {      public void actionPerformed(ActionEvent e) {        hide();      }    });    JButton cancel = new JButton("Cancel");    cancel.addActionListener(new ActionListener() {      public void actionPerformed(ActionEvent e) {        hide();        // set the text field to blank just in case        // a file was selected before the Cancel        // button was pressed.        _textField.setText("");      }    });    bottom.add(ok);    bottom.add(cancel);    getContentPane().add(main, BorderLayout.CENTER);    getContentPane().add(bottom, BorderLayout.SOUTH);    pack();    centerWindow(this);    show();  }  //--------------------------------------------------------------------------  //   Public Methods:  //--------------------------------------------------------------------------  public String getText() {    String s = _textField.getText();    if (s != null && s.trim().length() == 0) {      return null;    }    return s;  }  //--------------------------------------------------------------------------  //   Protected Methods:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Private Methods:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Nested Top-Level Classes or Interfaces  //--------------------------------------------------------------------------}