本文实例讲述了Java Swing组件定制CheckBox。分享给大家供大家参考，具体如下：
先来看看运行效果：
具体代码如下：
package themedemo;
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.RenderingHints;
import java.util.Map;
import javax.swing.BorderFactory;
import javax.swing.JCheckBox;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Painter;
import javax.swing.SwingUtilities;
import javax.swing.UIDefaults;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
public class CheckBoxSkinDemo {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
for (UIManager.LookAndFeelInfo laf : UIManager
.getInstalledLookAndFeels()) {
if ("Nimbus".equals(laf.getName())) {
try {
UIManager.setLookAndFeel(laf.getClassName());
} catch (Exception e) {
e.printStackTrace();
}
}
}
for (Map.Entry<Object, Object> entry : UIManager
.getLookAndFeelDefaults().entrySet()) {
if ((entry.getKey().toString()).startsWith("CheckBox")) {
System.out.println(entry.getKey() + " = "
+ entry.getValue());
}
}
JFrame frame = new JFrame("www.jb51.net - CheckBox Skining Demo");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(new BorderLayout());
JPanel panel = new JPanel(new GridLayout(0, 1, 20, 20));
panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
panel.setBackground(Color.darkGray);
UIDefaults checkBoxDefaults = new UIDefaults();
checkBoxDefaults.put("CheckBox.iconPainter",
new Painter<JComponent>() {
public void paint(Graphics2D g, JComponent c,
int w, int h) {
g.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setStroke(new BasicStroke(2f));
g.setColor(Color.WHITE);
g.fillRect(1, 1, w - 4, h - 4);
g.setColor(Color.LIGHT_GRAY);
g.drawRect(1, 1, w - 4, h - 4);
}
});
checkBoxDefaults.put("CheckBox[Selected].iconPainter",
new Painter<JComponent>() {
public void paint(Graphics2D g, JComponent c,
int w, int h) {
g.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setStroke(new BasicStroke(2f));
g.setColor(Color.WHITE);
g.fillRect(1, 1, w - 4, h - 4);
g.setColor(Color.DARK_GRAY);
g.drawPolyline(new int[] { 2, w / 3, w - 2 },
new int[] { h / 2 - 1, h - 4, 0 }, 3);
g.setColor(Color.LIGHT_GRAY);
g.drawRect(1, 1, w - 4, h - 4);
}
});
JCheckBox checkBox = new JCheckBox("myCheckBox");
panel.add(checkBox);
checkBox.putClientProperty("Nimbus.Overrides", checkBoxDefaults);
checkBox.putClientProperty("Nimbus.Overrides.InheritDefaults",
false);
// Add a normal themed slider for comparison
JCheckBox normalCheckBox = new JCheckBox("normalCheckBox");
panel.add(normalCheckBox);
frame.getContentPane().add(panel, BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
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