/*
* Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.swingset3.demos.progressbar;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import javax.swing.*;
import javax.swing.border.BevelBorder;
import javax.swing.border.SoftBevelBorder;
import com.sun.swingset3.DemoProperties;
import com.sun.swingset3.demos.ResourceManager;
/**
* JProgressBar Demo
*
* @version 1.12 11/17/05
* @author Jeff Dinkins # @author Peter Korn (accessibility support)
*/
@DemoProperties(
value = "ProgressBar Demo",
category = "Controls",
description = "Demonstrates the JProgressBar, a control which displays progress to the user",
sourceFiles = {
"com/sun/swingset3/demos/progressbar/ProgressBarDemo.java",
"com/sun/swingset3/demos/ResourceManager.java",
"com/sun/swingset3/demos/progressbar/resources/ProgressBarDemo.properties",
"com/sun/swingset3/demos/progressbar/resources/images/ProgressBarDemo.gif"
}
)
public class ProgressBarDemo extends JPanel {
private static final ResourceManager resourceManager = new ResourceManager(ProgressBarDemo.class);
public static final String STOP_BUTTON = resourceManager.getString("ProgressBarDemo.stop_button");
public static final String START_BUTTON = resourceManager.getString("ProgressBarDemo.start_button");
public static final String DEMO_TITLE = ProgressBarDemo.class.getAnnotation(DemoProperties.class).value();
/**
* main method allows us to run as a standalone demo.
*
* @param args
*/
public static void main(String[] args) {
JFrame frame = new JFrame(DEMO_TITLE);
frame.getContentPane().add(new ProgressBarDemo());
frame.setPreferredSize(new Dimension(800, 600));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
/**
* ProgressBarDemo Constructor
*/
public ProgressBarDemo() {
createProgressPanel();
}
private final javax.swing.Timer timer = new javax.swing.Timer(18, createTextLoadAction());
private Action loadAction;
private Action stopAction;
private JProgressBar progressBar;
private JTextArea progressTextArea;
private void createProgressPanel() {
setLayout(new BorderLayout());
JPanel textWrapper = new JPanel(new BorderLayout());
textWrapper.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));
textWrapper.setAlignmentX(LEFT_ALIGNMENT);
progressTextArea = new MyTextArea();
progressTextArea.getAccessibleContext().setAccessibleName(
resourceManager.getString("ProgressBarDemo.accessible_text_area_name"));
progressTextArea.getAccessibleContext().setAccessibleDescription(
resourceManager.getString("ProgressBarDemo.accessible_text_area_description"));
textWrapper.add(new JScrollPane(progressTextArea), BorderLayout.CENTER);
add(textWrapper, BorderLayout.CENTER);
JPanel progressPanel = new JPanel();
add(progressPanel, BorderLayout.SOUTH);
progressBar = new JProgressBar(JProgressBar.HORIZONTAL, 0, text.length()) {
@Override
public Dimension getPreferredSize() {
return new Dimension(300, super.getPreferredSize().height);
}
};
progressBar.getAccessibleContext().setAccessibleName(
resourceManager.getString("ProgressBarDemo.accessible_text_loading_progress"));
progressPanel.add(progressBar);
progressPanel.add(createLoadButton());
progressPanel.add(createStopButton());
}
private JButton createLoadButton() {
loadAction = new AbstractAction(START_BUTTON) {
@Override
public void actionPerformed(ActionEvent e) {
loadAction.setEnabled(false);
stopAction.setEnabled(true);
if (progressBar.getValue() == progressBar.getMaximum()) {
progressBar.setValue(0);
textLocation = 0;
progressTextArea.setText("");
}
timer.start();
}
};
return createButton(loadAction);
}
private JButton createStopButton() {
stopAction = new AbstractAction(STOP_BUTTON) {
@Override
public void actionPerformed(ActionEvent e) {
timer.stop();
loadAction.setEnabled(true);
stopAction.setEnabled(false);
}
};
return createButton(stopAction);
}
private static JButton createButton(Action a) {
JButton b = new JButton();
// setting the following client property informs the button to show
// the action text as it's name. The default is to not show the
// action text.
b.putClientProperty("displayActionText", Boolean.TRUE);
b.setAction(a);
return b;
}
private int textLocation = 0;
private final String text = resourceManager.getString("ProgressBarDemo.text");
private Action createTextLoadAction() {
return new AbstractAction("text load action") {
@Override
public void actionPerformed(ActionEvent e) {
if (progressBar.getValue() < progressBar.getMaximum()) {
progressBar.setValue(progressBar.getValue() + 1);
progressTextArea.append(text.substring(textLocation, textLocation + 1));
textLocation++;
} else {
timer.stop();
loadAction.setEnabled(true);
stopAction.setEnabled(false);
}
}
};
}
private static class MyTextArea extends JTextArea {
private MyTextArea() {
super(null, 0, 0);
setEditable(false);
setText("");
}
@Override
public float getAlignmentX() {
return LEFT_ALIGNMENT;
}
@Override
public float getAlignmentY() {
return TOP_ALIGNMENT;
}
}
}