@David 是正确的,主机平台拥有JFrame
装饰,但您可以利用JInternalFrame
图标,这些图标通常概括了平台的图标。例如,
private static final Icon ICON = (Icon) UIManager.get("InternalFrame.closeIcon");
此处列举了其他装饰性默认设置。
SSCCE:
import java.awt.EventQueue;
import java.awt.GridLayout;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
/** @see http://stackoverflow.com/a/10360374/230513 */
public class InternalFrameIcons extends JPanel {
public InternalFrameIcons() {
this.setLayout(new GridLayout(0, 1, 5, 5));
this.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
this.add(createLabel("InternalFrame.closeIcon"));
this.add(createLabel("InternalFrame.maximizeIcon"));
this.add(createLabel("InternalFrame.minimizeIcon"));
}
private JLabel createLabel(String name) {
Icon icon = (Icon) UIManager.get(name);
JLabel label = new JLabel(name, icon, JLabel.CENTER);
label.setHorizontalTextPosition(JLabel.CENTER);
label.setVerticalTextPosition(JLabel.BOTTOM);
return label;
}
private void display() {
JFrame f = new JFrame("InternalFrameIcons");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(this);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new InternalFrameIcons().display();
}
});
}
}