qqbutton.java

IO流的项目好

//按钮封装类
package myQQ;

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

class QQButton extends JButton 
{
	ImageIcon icPlain; //未选择时的图片
	ImageIcon icEnter; //悬停时的图片
	ImageIcon icSelect; //选择时的图片
	String bname; //图片名
	Color cB; //背景色
	Border bR = BorderFactory.createRaisedBevelBorder();
	Border bL = BorderFactory.createLoweredBevelBorder();
	boolean click = false; //是否点击
	 
	QQButton(ImageIcon icP,Color cB,String text)
	{	//图标按钮+浮动文字
		//鼠标悬停改变背景--按下后凹入
		super(icP);
		this.cB = cB;
		this.setToolTipText(text);
		this.setTypeForAll();
		this.addMouseListener(new MEone());
	}
	
	QQButton(String bname,String text)
	{	//图标+正中文字的按钮
		super(text);
		this.bname = bname;
		this.icPlain = new ImageIcon(bname+"0.png");
		this.icEnter = new ImageIcon(bname+"1.png");
		this.icSelect = new ImageIcon(bname+"2.png");
		this.setIcon(icPlain);
		//设置文字图标对齐方式
		this.setVerticalTextPosition(JButton.CENTER);
		this.setHorizontalTextPosition(JButton.CENTER);
		this.setTypeForAll();
		this.addMouseListener(new MEtwo());
	}
	
	public void setTypeForAll()
	{	//统一设置类型
		this.setMargin(new Insets(0,0,0,0));
		this.setBorder(null);
		this.setContentAreaFilled(false);
	}
	
	class MEone extends MouseAdapter
	{
		public void mouseClicked(MouseEvent e)
		{	
			if(!click)
			{	//初次点击凹入
				setBorder(bL);
				click = true;	
			}
			else 
			{	//再次点击恢复
				setBorder(null);
				click = false;
			}
		}
		public void mouseEntered(MouseEvent e)
		{
			setBackground(cB);
			setContentAreaFilled(true);
		}
		public void mouseExited(MouseEvent e)
		{
			setBackground(null);
			setContentAreaFilled(false);
		}	
	}
	
	class MEtwo extends MouseAdapter
	{
		public void mouseEntered(MouseEvent e)
		{
			setIcon(icEnter);
		}
		public void mouseExited(MouseEvent e)
		{
			setIcon(icPlain);
		}
		public void mousePressed(MouseEvent e)
		{
			setIcon(icSelect);
		}
	}
}