java抓取鼠标事件和鼠标滚轮事件示例

java抓取鼠标事件和滚轮事件

package demo;

import java.awt.event.mouseevent;
import java.awt.event.mouselistener;
import java.awt.event.mousewheelevent;
import java.awt.event.mousewheellistener;

import javax.swing.jbutton;
import javax.swing.jframe;
import javax.swing.jpanel;

public class mousedemo extends jframe  implements mouselistener,mousewheellistener{

    static int chang=400,kuang=400;
    public mousedemo(){
    jpanel j=new jpanel();
    jbutton jb=new jbutton("click");

    j.add(jb);
    this.add(j);

    this.setvisible(true);
    this.setsize(chang,kuang);

    jb.addmouselistener(this);
    this.addmousewheellistener(this);

    }

    public   void mouseclicked(mouseevent e){

        //左击事件
        if(e.getbutton()==mouseevent.button1)
            system.out.println("zuo ji shi jian ....");

        //滑轮按下事件
        if(e.getbutton()==mouseevent.button2)
            system.out.println("zhong  ji shi jian ....");

        //右击事件
        if(e.getbutton()==mouseevent.button3)
            system.out.println("you ji shi jian ....");

    }

    public static void main(string[] args) {
        // todo auto-generated method stub
        new mousedemo();
    }

    @override
    public void mouseentered(mouseevent e) {
        // todo auto-generated method stub

    }

    @override
    public void mouseexited(mouseevent e) {
        // todo auto-generated method stub

    }

    @override
    public void mousepressed(mouseevent e) {
        // todo auto-generated method stub

    }

    @override
    public void mousereleased(mouseevent e) {
        // todo auto-generated method stub

    }

    @override
    //利用滚轮事件将窗口放大和缩小
    public void mousewheelmoved(mousewheelevent e) {
        // todo auto-generated method stub
        if(e.getwheelrotation()==1){
            chang+=10;
            kuang+=10;
            this.setsize(chang,kuang);
            this.validate();
            system.out.println("滑轮向前。。。。");
        }
        if(e.getwheelrotation()==-1){
            chang-=10;
            kuang-=10;
            this.setsize(chang,kuang);
            this.validate();
            system.out.println("滑轮向后....");
        }
    }
}