motifmenuitemui.java

JAVA 所有包

/*
 * @(#)MotifMenuItemUI.java	1.52 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
 
package com.sun.java.swing.plaf.motif;


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

import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicMenuItemUI;


/**
 * MotifMenuItem implementation
 * <p>
 *
 * @author Rich Schiavi
 * @author Georges Saab
 */
public class MotifMenuItemUI extends BasicMenuItemUI
{
    protected ChangeListener changeListener;

    public static ComponentUI createUI(JComponent c) 
    {
	return new MotifMenuItemUI();
    }
    
    protected void installListeners() {
	super.installListeners();
        changeListener = createChangeListener(menuItem);
        menuItem.addChangeListener(changeListener);	
    }
    
    protected void uninstallListeners() {
	super.uninstallListeners();
	menuItem.removeChangeListener(changeListener);
    }

    protected ChangeListener createChangeListener(JComponent c) {
	return new ChangeHandler();
    }

    protected MouseInputListener createMouseInputListener(JComponent c) {
	return new MouseInputHandler();
    }

    protected class ChangeHandler implements ChangeListener {

	public void stateChanged(ChangeEvent e) {
	    JMenuItem c = (JMenuItem)e.getSource();
            LookAndFeel.installProperty(c, "borderPainted",
                        Boolean.valueOf(c.isArmed() || c.isSelected()));
	}
    }

    protected class MouseInputHandler implements MouseInputListener {
	public void mouseClicked(MouseEvent e) {}
	public void mousePressed(MouseEvent e) {
	    MenuSelectionManager manager = MenuSelectionManager.defaultManager();
	    manager.setSelectedPath(getPath());
	}
	public void mouseReleased(MouseEvent e) {
	    MenuSelectionManager manager = 
		MenuSelectionManager.defaultManager();
	    JMenuItem menuItem = (JMenuItem)e.getComponent();
	    Point p = e.getPoint();
	    if(p.x >= 0 && p.x < menuItem.getWidth() &&
	       p.y >= 0 && p.y < menuItem.getHeight()) {
                manager.clearSelectedPath();
                menuItem.doClick(0);
	    } else {
		manager.processMouseEvent(e);
	    }
	}
	public void mouseEntered(MouseEvent e) {}
	public void mouseExited(MouseEvent e) {}
	public void mouseDragged(MouseEvent e) {
	    MenuSelectionManager.defaultManager().processMouseEvent(e);
	}
	public void mouseMoved(MouseEvent e) { }
    }
  
}