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828天前import java.awt.Color; |
import java.awt.Graphics; |
import java.awt.event.MouseEvent; |
import java.awt.event.MouseListener; |
import javax.swing.JFrame; |
public class T1 extends JFrame{ |
int x; |
int y; |
Color c; |
public T1(){ |
this.setSize(600,400); |
this.setDefaultCloseOperation(2); |
this.setVisible(true); |
this.addMouseListener(shubiaodianji()); |
} |
|
public void paint(Graphics g){ |
super.paint(g); |
g.setColor(c); |
g.fillOval(x-100, y-100, 200, 200); |
} |
|
private MouseListener shubiaodianji() { |
MouseListener m = new MouseListener() { |
|
@Override |
public void mouseReleased(MouseEvent e) { |
// 鼠标松开的那一瞬间 |
|
} |
|
@Override |
public void mousePressed(MouseEvent e) { |
// 鼠标按下的那一瞬间 |
if(e.getButton()==MouseEvent.BUTTON1){ |
c = Color.red; |
setTitle("左键"); |
}else if(e.getButton()==MouseEvent.BUTTON2){ |
c = Color.orange; |
setTitle("中键"); |
}else if(e.getButton()==MouseEvent.BUTTON3){ |
c = Color.cyan; |
setTitle("右键"); |
}else{ |
setTitle("不知道啥按键"); |
} |
x=e.getX(); |
y=e.getY(); |
repaint();//重新绘图 |
|
} |
|
@Override |
public void mouseExited(MouseEvent e) { |
// 鼠标退出JFrame界面的那一瞬间 |
} |
|
@Override |
public void mouseEntered(MouseEvent e) { |
// 鼠标计入JFrame的那一瞬间 |
|
} |
|
@Override |
public void mouseClicked(MouseEvent e) { |
// 鼠标点击事件按钮 |
|
} |
}; |
return m; |
} |
public static void main(String[] args) { |
new T1(); |
} |
} |
by: 发表于：2017-07-07 15:47:21 顶(0) | 踩(0) 回复
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