Mega Code Archive
Demonstrates how to fix common alignment problems
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/*
*
* Copyright (c) 1998 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
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* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
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* redistribute the Software for such purposes.
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.AbstractButton;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
public class BoxAlignmentDemo extends JPanel {
public BoxAlignmentDemo() {
super(new BorderLayout());
JTabbedPane tabbedPane = new JTabbedPane();
JPanel buttonRow = new JPanel();
// Use default FlowLayout.
buttonRow.add(createButtonRow(false));
buttonRow.add(createButtonRow(true));
tabbedPane.addTab("Altering alignments", buttonRow);
JPanel labelAndComponent = new JPanel();
// Use default FlowLayout.
labelAndComponent.add(createLabelAndComponent(false));
labelAndComponent.add(createLabelAndComponent(true));
tabbedPane.addTab("X alignment mismatch", labelAndComponent);
JPanel buttonAndComponent = new JPanel();
// Use default FlowLayout.
buttonAndComponent.add(createYAlignmentExample(false));
buttonAndComponent.add(createYAlignmentExample(true));
tabbedPane.addTab("Y alignment mismatch", buttonAndComponent);
// Add tabbedPane to this panel.
add(tabbedPane, BorderLayout.CENTER);
}
protected JPanel createButtonRow(boolean changeAlignment) {
JButton button1 = new JButton("A JButton", createImageIcon("images/middle.gif"));
button1.setVerticalTextPosition(AbstractButton.BOTTOM);
button1.setHorizontalTextPosition(AbstractButton.CENTER);
JButton button2 = new JButton("Another JButton", createImageIcon("images/geek-cght.gif"));
button2.setVerticalTextPosition(AbstractButton.BOTTOM);
button2.setHorizontalTextPosition(AbstractButton.CENTER);
String title;
if (changeAlignment) {
title = "Desired";
button1.setAlignmentY(BOTTOM_ALIGNMENT);
button2.setAlignmentY(BOTTOM_ALIGNMENT);
} else {
title = "Default";
}
JPanel pane = new JPanel();
pane.setBorder(BorderFactory.createTitledBorder(title));
pane.setLayout(new BoxLayout(pane, BoxLayout.X_AXIS));
pane.add(button1);
pane.add(button2);
return pane;
}
protected JPanel createLabelAndComponent(boolean doItRight) {
JPanel pane = new JPanel();
JComponent component = new JPanel();
Dimension size = new Dimension(150, 100);
component.setMaximumSize(size);
component.setPreferredSize(size);
component.setMinimumSize(size);
TitledBorder border = new TitledBorder(new LineBorder(Color.black), "A JPanel",
TitledBorder.CENTER, TitledBorder.BELOW_TOP);
border.setTitleColor(Color.black);
component.setBorder(border);
JLabel label = new JLabel("This is a JLabel");
String title;
if (doItRight) {
title = "Matched";
label.setAlignmentX(CENTER_ALIGNMENT);
} else {
title = "Mismatched";
}
pane.setBorder(BorderFactory.createTitledBorder(title));
pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));
pane.add(label);
pane.add(component);
return pane;
}
protected JPanel createYAlignmentExample(boolean doItRight) {
JPanel pane = new JPanel();
String title;
JComponent component1 = new JPanel();
Dimension size = new Dimension(100, 50);
component1.setMaximumSize(size);
component1.setPreferredSize(size);
component1.setMinimumSize(size);
TitledBorder border = new TitledBorder(new LineBorder(Color.black), "A JPanel",
TitledBorder.CENTER, TitledBorder.BELOW_TOP);
border.setTitleColor(Color.black);
component1.setBorder(border);
JComponent component2 = new JPanel();
size = new Dimension(100, 50);
component2.setMaximumSize(size);
component2.setPreferredSize(size);
component2.setMinimumSize(size);
border = new TitledBorder(new LineBorder(Color.black), "A JPanel", TitledBorder.CENTER,
TitledBorder.BELOW_TOP);
border.setTitleColor(Color.black);
component2.setBorder(border);
if (doItRight) {
title = "Matched";
} else {
component1.setAlignmentY(TOP_ALIGNMENT);
title = "Mismatched";
}
pane.setBorder(BorderFactory.createTitledBorder(title));
pane.setLayout(new BoxLayout(pane, BoxLayout.X_AXIS));
pane.add(component1);
pane.add(component2);
return pane;
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = BoxAlignmentDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety, this method should be
* invoked from the event-dispatching thread.
*/
private static void createAndShowGUI() {
// Create and set up the window.
JFrame frame = new JFrame("BoxAlignmentDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
BoxAlignmentDemo newContentPane = new BoxAlignmentDemo();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
// Schedule a job for the event-dispatching thread:
// creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
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