java:java中设置程序外观的方法

package com.xudeyu.event;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import javax.swing.AbstractAction;

import javax.swing.Action;

import javax.swing.ActionMap;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.InputMap;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JComponent;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.KeyStroke;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

public class ActionTest

{

public static void main(String[] args)

{

EventQueue.invokeLater(new Runnable()

{

public void run()

{

ActionFrame frame = new ActionFrame();

frame.setDefaultCloseOperation(3);

frame.setVisible(true);

}

});

}

}

class ActionFrame extends JFrame

{

private JPanel buttonPanel;

private JComboBox box;

public ActionFrame()

{

setTitle("Action Test");

setSize(500, 400);

setLocationByPlatform(true);

buttonPanel = new JPanel();

box = new JComboBox();

addUIInComboBox();

buttonPanel.add(box);

box.addItemListener(new ItemListener()

{

public void itemStateChanged(ItemEvent e)

{

try

{

UIManager.setLookAndFeel(box.getSelectedItem()

.toString());

SwingUtilities.updateComponentTreeUI(buttonPanel);

}

catch (Exception ee)

{

ee.printStackTrace();

}

}

});

// 用Action创建一个button的action

Action buttonActionBlue = newColorActionTest("ActionButton",

new ImageIcon("test.jpg"), Color.BLUE);

//用某一个action初始化一个按钮。多个按钮可以共用一个action

JButton btnActionBlue = new JButton(buttonActionBlue);

buttonPanel.add(btnActionBlue);

// 为组件添加快捷键，将键值y赋值；

InputMap map =buttonPanel.getInputMap(JComponent.WHEN_FOCUSED);

map.put(KeyStroke.getKeyStroke("Y"),"buttonActionBlue");

//把刚才Y的赋值，添加一个action，即通过actionmap桥连键值和动作；

ActionMap actionMap = buttonPanel.getActionMap();

actionMap.put("buttonActionBlue", buttonActionBlue);

buttonPanel.addKeyListener(new MyKeyListener());

add(buttonPanel);

}

class ColorActionTest extends AbstractAction

{

public ColorActionTest(String buttonName, Icon icon, Colorc)

{

putValue(Action.NAME, buttonName);

putValue(Action.SMALL_ICON, icon);

putValue("Color", c);

putValue(Action.SHORT_DESCRIPTION, "set panel color to "

+ buttonName.toLowerCase());

}

public void actionPerformed(ActionEvent e)

{

Color c = (Color) getValue("Color");

buttonPanel.setBackground(c);

}

}

class MyKeyListener implements KeyListener

{

@Override

public void keyPressed(KeyEvent e)

{

if (e.getKeyChar() == 'A')

{

buttonPanel.setBackground(Color.black);

}

}

@Override

public void keyReleased(KeyEvent e)

{

if (e.getKeyCode() == 'B')

{

buttonPanel.setBackground(Color.cyan);

}

}

@Override

public void keyTyped(KeyEvent e)

{

}

}

private void addUIInComboBox()

{

// 获取所有的界面

UIManager.LookAndFeelInfo[] infos = UIManager

.getInstalledLookAndFeels();

for (UIManager.LookAndFeelInfo ui : infos)

{

box.addItem(ui.getClassName());

}

}

}