wmvcmenuitemctl.java

一个温度计的小程序

/*
 * WmvcMenuItemCtl - implements JMenuItem controller
 * (c) 2001, Bruce E. Wampler
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class WmvcMenuItemCtl extends WmvcController
{

    private JMenu myMenu;
    private JMenuItem menuItem;
    
        // Constructor for JMenu item: Standard JMenuItem
    public WmvcMenuItemCtl(JMenu menu,      // JMenu I go with
                        String text,        // Button's text
                        String icon,        // the icon's name
                        char mnemonic,      // Button's mnemonic
                        String accel,       // accelerator
                        WmvcExecutor wExec)
    {
	super((JComponent)new JMenuItem(), null, wExec);
	
        myMenu = menu;
        menuItem = (JMenuItem) myComponent;

        if (text != null)
            menuItem.setText(text);
        if (mnemonic != ' ' && mnemonic != 0)
            menuItem.setMnemonic(mnemonic);
        if (accel != null)
          {
            KeyStroke ks = KeyStroke.getKeyStroke(accel);
            menuItem.setAccelerator(ks);
          }
        if (icon != null)
          {
            Icon theIcon = new ImageIcon(icon);
            menuItem.setIcon(theIcon);
          }
        menuItem.addActionListener(this);  // Add listeners
        menuItem.addItemListener(this);
        menu.add(menuItem);              // Finally, add to menu
    }
  
    public void setEnabled(boolean enable)
    {
        menuItem.setEnabled(enable);
    }

    public JMenu getJMenu() { return myMenu; }
    public JMenuItem getJMenuItem() { return menuItem; }
}