Jcombox(可以对框里内容进行编辑)问题,请大家指教!!!!一定给分!

Question

http://java.sun.com/docs/books/tutorial/uiswing/components/combobox.html

Answer 1

多谢 gdsean(摇滚java的提示：
但现在我还是有很多的问题。Jcombox1.setEditable(true）后，很多在不可编辑的combox中可以触发的事件比如说获得焦点，失去焦点，请问这些如何添加？

Answer 2

参考这个类。
package Common;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.basic.*;
public class CustomComboEditor extends BasicComboBoxEditor {
  int rowCount;
  String[] names;
  public CustomComboEditor( final String[] names, final int rowCount ) {
    super();
    this.names = names;
    this.rowCount = rowCount;
    editor.addKeyListener( new KeyAdapter() {
      public void keyReleased( KeyEvent e ) {
        if (e.getKeyCode() == KeyEvent.VK_ENTER)
          processEvent();
      }
    });    editor.addActionListener( new ActionListener(){
      public void actionPerformed(ActionEvent e) {
        processEvent();
      }
    });    editor.addFocusListener( new FocusAdapter() {
      public void focusGained( FocusEvent e) {
      ((JTextField) e.getComponent()).selectAll();
      }
      public void focusLost( FocusEvent e) {
        processEvent();
      }
    });
  }  void processEvent() {
    String wordTyped = editor.getText();
    for ( int i = 0; i < rowCount; i++ ) {
      if (( (String)names[ i ] ).toUpperCase().startsWith( wordTyped.toUpperCase() ) ) {
        editor.selectAll();
        editor.setText( (String)names[ i ] );
        editor.setSelectionStart( wordTyped.length() );
        break;
      }
    }
  }
}