steppedcomboboxexample.java

自制java的swing组件

package zb.swing;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * @version 1.0 12/12/98
 */
public class SteppedComboBoxExample
    extends JFrame {
  public SteppedComboBoxExample() {
    super("SteppedComboBox Example");

    String[] str = {
        "A",
        "abcdefghijklmnopqrstuvwxyz",
        "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
        "0123456789"
    };

    SteppedComboBox combo = new SteppedComboBox(str);
    Dimension d = combo.getPreferredSize();
    combo.setPreferredSize(new Dimension(50, d.height));
    combo.setPopupWidth(d.width);

    getContentPane().setLayout(new FlowLayout());
    getContentPane().add(combo);
  }

  public static void main(String args[]) {
    SteppedComboBoxExample f = new SteppedComboBoxExample();
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    f.setSize(300, 100);
    f.show();
  }
}