1 /*

     2  *

     3  * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  *

     9  *   - Redistributions of source code must retain the above copyright

    10  *     notice, this list of conditions and the following disclaimer.

    11  *

    12  *   - Redistributions in binary form must reproduce the above copyright

    13  *     notice, this list of conditions and the following disclaimer in the

    14  *     documentation and/or other materials provided with the distribution.

    15  *

    16  *   - Neither the name of Oracle nor the names of its

    17  *     contributors may be used to endorse or promote products derived

    18  *     from this software without specific prior written permission.

    19  *

    20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    21  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    31  */

    32 

    33 

    34 import javax.swing.*;

    35 import javax.swing.event.*;

    36 import javax.swing.text.*;

    37 import javax.swing.border.*;

    38 import javax.swing.colorchooser.*;

    39 import javax.swing.filechooser.*;

    40 import javax.accessibility.*;

    41 

    42 import java.awt.*;

    43 import java.awt.event.*;

    44 import java.beans.*;

    45 import java.util.*;

    46 import java.io.*;

    47 import java.applet.*;

    48 import java.net.*;

    49 

    50 /**

    51  * JProgressBar Demo

    52  *

    53  * @author Jeff Dinkins

    54  # @author Peter Korn (accessibility support)

    55  */

    56 public class ProgressBarDemo extends DemoModule {

    57 

    58     /**

    59      * main method allows us to run as a standalone demo.

    60      */

    61     public static void main(String[] args) {

    62         ProgressBarDemo demo = new ProgressBarDemo(null);

    63         demo.mainImpl();

    64     }

    65 

    66     /**

    67      * ProgressBarDemo Constructor

    68      */

    69     public ProgressBarDemo(SwingSet2 swingset) {

    70         // Set the title for this demo, and an icon used to represent this

    71         // demo inside the SwingSet2 app.

    72         super(swingset, "ProgressBarDemo", "toolbar/JProgressBar.gif");

    73 

    74         createProgressPanel();

    75     }

    76 

    77     javax.swing.Timer timer = new javax.swing.Timer(18, createTextLoadAction());

    78     Action loadAction;

    79     Action stopAction;

    80     JProgressBar progressBar;

    81     JTextArea progressTextArea;

    82 

    83     void updateDragEnabled(boolean dragEnabled) {

    84         progressTextArea.setDragEnabled(dragEnabled);

    85     }

    86 

    87     public void createProgressPanel() {

    88         getDemoPanel().setLayout(new BorderLayout());

    89 

    90         JPanel textWrapper = new JPanel(new BorderLayout());

    91         textWrapper.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));

    92         textWrapper.setAlignmentX(LEFT_ALIGNMENT);

    93         progressTextArea = new MyTextArea();

    94 

    95         progressTextArea.getAccessibleContext().setAccessibleName(getString("ProgressBarDemo.accessible_text_area_name"));

    96         progressTextArea.getAccessibleContext().setAccessibleName(getString("ProgressBarDemo.accessible_text_area_description"));

    97         textWrapper.add(new JScrollPane(progressTextArea), BorderLayout.CENTER);

    98 

    99         getDemoPanel().add(textWrapper, BorderLayout.CENTER);

   100 

   101         JPanel progressPanel = new JPanel();

   102         getDemoPanel().add(progressPanel, BorderLayout.SOUTH);

   103 

   104         progressBar = new JProgressBar(JProgressBar.HORIZONTAL, 0, text.length()) {

   105             public Dimension getPreferredSize() {

   106                 return new Dimension(300, super.getPreferredSize().height);

   107             }

   108         };

   109         progressBar.getAccessibleContext().setAccessibleName(getString("ProgressBarDemo.accessible_text_loading_progress"));

   110 

   111         progressPanel.add(progressBar);

   112         progressPanel.add(createLoadButton());

   113         progressPanel.add(createStopButton());

   114     }

   115 

   116     public JButton createLoadButton() {

   117         loadAction = new AbstractAction(getString("ProgressBarDemo.start_button")) {

   118             public void actionPerformed(ActionEvent e) {

   119                 loadAction.setEnabled(false);

   120                 stopAction.setEnabled(true);

   121                 if (progressBar.getValue() == progressBar.getMaximum()) {

   122                     progressBar.setValue(0);

   123                     textLocation = 0;

   124                     progressTextArea.setText("");

   125                 }

   126                 timer.start();

   127             }

   128         };

   129         return createButton(loadAction);

   130     }

   131 

   132     public JButton createStopButton() {

   133         stopAction = new AbstractAction(getString("ProgressBarDemo.stop_button")) {

   134             public void actionPerformed(ActionEvent e) {

   135                 timer.stop();

   136                 loadAction.setEnabled(true);

   137                 stopAction.setEnabled(false);

   138             }

   139         };

   140         return createButton(stopAction);

   141     }

   142 

   143     public JButton createButton(Action a) {

   144         JButton b = new JButton();

   145         // setting the following client property informs the button to show

   146         // the action text as it's name. The default is to not show the

   147         // action text.

   148         b.putClientProperty("displayActionText", Boolean.TRUE);

   149         b.setAction(a);

   150         return b;

   151     }

   152 

   153 

   154     int textLocation = 0;

   155 

   156     String text = getString("ProgressBarDemo.text");

   157 

   158     public Action createTextLoadAction() {

   159         return new AbstractAction("text load action") {

   160             public void actionPerformed (ActionEvent e) {

   161                 if(progressBar.getValue() < progressBar.getMaximum()) {

   162                     progressBar.setValue(progressBar.getValue() + 1);

   163                     progressTextArea.append(text.substring(textLocation, textLocation+1));

   164                     textLocation++;

   165                 } else {

   166                         timer.stop();

   167                         loadAction.setEnabled(true);

   168                         stopAction.setEnabled(false);

   169                 }

   170             }

   171         };

   172     }

   173 

   174 

   175     class MyTextArea extends JTextArea {

   176         public MyTextArea() {

   177             super(null, 0, 0);

   178             setEditable(false);

   179             setText("");

   180         }

   181 

   182         public float getAlignmentX () {

   183             return LEFT_ALIGNMENT;

   184         }

   185 

   186         public float getAlignmentY () {

   187             return TOP_ALIGNMENT;

   188         }

   189     }

   190 }