Tue, 28 Feb 2006 11:02:00 GMT

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

import java.awt.image.*;
import com.sun.image.codec.jpeg.*;
import java.io.*;
public class mouse implements ActionListener, WindowListener, MouseMotionListener, MouseListener
{
Frame f;

TextField t=new TextField();
int j;
int x,y;
Graphics g,g_in;
int x1,y1;
BufferedImage i;

Panel p1=new Panel(new GridLayout(2,3));

Button b1=new Button("�U�色");
Button b2=new Button("黄色");
Button b3=new Button("蓝色");
Button b4=new Button("�l�色");
Button b5=new Button("矩�Ş");
Button b6=new Button("圆�Ş");


mouse()
{




  t.setEnabled(false);

  f=new Frame("��d��Q?);

  p1.add(b1);
  p1.add(b2);
  p1.add(b3);
  p1.add(b4);
  p1.add(b5);
  p1.add(b6);

  b1.addActionListener(this);
  b2.addActionListener(this);
  b3.addActionListener(this);
  b4.addActionListener(this);
  b5.addActionListener(this);
  b6.addActionListener(this);

  f.add(t,BorderLayout.NORTH);
  f.add(p1,BorderLayout.EAST);


  f.setSize(400,400);
  int w=(int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
  int h=(int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();

  f.setLocation((w-400)/2,(h-400)/2);
  f.setBackground(Color.ORANGE);

  f.setResizable(false);
  f.setVisible(true);
  f.addWindowListener(this);
  f.addMouseListener(this);
  f.addMouseMotionListener(this);
  this.getG();

}
public void getG()
{
  f.addMouseListener(this);
  this.g=f.getGraphics();
  i=new BufferedImage(f.getWidth(),f.getHeight(),BufferedImage.TYPE_INT_RGB);
  g_in=i.getGraphics();


  g_in.setColor(Color.white);
  g_in.fill3DRect(0,0,i.getWidth(),i.getHeight(),true);

}

public void actionPerformed(ActionEvent e)
{
  if(e.getSource()==b1)
  {
   g.setColor(Color.red);
   g_in.setColor(Color.red);
  }
  else if(e.getSource()==b2)
  {
   g.setColor(Color.yellow);
   g_in.setColor(Color.yellow);
  }
  else if(e.getSource()==b3)
  {
   g.setColor(Color.blue);
   g_in.setColor(Color.blue);
  }
  else if(e.getSource()==b4)

  {
   g.setColor(Color.green);
   g_in.setColor(Color.green);
  }
  else if(e.getSource()==b5)
  {
   j=0;
  }
  else if(e.getSource()==b6)
  {
   j=1;
  }




}

public static void main(String args[])
{
  mouse my=new mouse();
}

public void windowOpened(WindowEvent e) {

}

public void windowClosing(WindowEvent e) {
try
  {
   ByteArrayOutputStream is=new ByteArrayOutputStream();//创徏一个字节类型数据的数据�?BR>
   JPEGImageEncoder coder=JPEGCodec.createJPEGEncoder(is);
   //声明此数据区只能保存JPG格式的数�?BR>
   coder.encode(i);
   //从内存i囄��中提取JPG格式数据�Q�保存到数据�?BR>
   FileOutputStream fo=new FileOutputStream("a.jpg");

   byte[] b=is.toByteArray();//��数据提取成字节数组

   fo.write(b);//��数据写入a.jpg文�g�?BR>   fo.close();//关闭文�g的写�?BR>
   f.dispose();

   JOptionPane.showMessageDialog(null,"囄��已保存�ؓa.jpg�Q�请察看�Q?);

  }catch(Exception el){}
}

public void windowClosed(WindowEvent e) {

}

public void windowIconified(WindowEvent e) {

}

public void windowDeiconified(WindowEvent e) {

}

public void windowActivated(WindowEvent e) {

}

public void windowDeactivated(WindowEvent e) {

}

public void mouseDragged(MouseEvent e) {
// TODO: Add your code here
}

public void mouseMoved(MouseEvent e) {
t.setText("X:"+e.getX()+"Y:"+e.getY());

}

public void mouseClicked(MouseEvent e) {
// TODO: Add your code here
}

public void mousePressed(MouseEvent e) {
x=e.getX();y=e.getY();

}

public void mouseReleased(MouseEvent e) {

  x1=e.getX();y1=e.getY();
   if (j==1)
   {
    if(x1>=x)
    {
   if(y1>=y)
   {
   g.fillOval(x,y,x1-x,y1-y);
   g_in.fillOval(x,y,x1-x,y1-y);
   }
   else if(y1   {
   g.fillOval(x,y1,x1-x,y-y1);
   g_in.fillOval(x,y1,x1-x,y-y1);
   }
  }

  else if(x1  {
   if(y1   {
   g_in.fillOval(x1,y1,x-x1,y-y1);
   g.fillOval(x1,y1,x-x1,y-y1);
   }
   else if(y1>=y)
   {
    g.fillOval(x1,y,x-x1,y1-y);
    g_in.fillOval(x1,y,x-x1,y1-y);
   }
  }}
  else if(j==0)
  {
   if(x1>=x)
    {
   if(y1>=y)
   {
  g.fillRect(x,y,x1-x,y1-y);
  g_in.fillRect(x,y,x1-x,y1-y);
   }
   else if(y1   {
  g.fillRect(x,y1,x1-x,y-y1);
  g_in.fillRect(x,y1,x1-x,y-y1);
   }
  }

  else if(x1  {
   if(y1   {
   g.fillRect(x1,y1,x-x1,y-y1);
   g_in.fillRect(x1,y1,x-x1,y-y1);
   }
   else if(y1>=y)
   {
    g.fillRect(x1,y,x-x1,y1-y);
    g_in.fillRect(x1,y,x-x1,y1-y);
   }
  }
  }



}

public void mouseEntered(MouseEvent e) {

}

public void mouseExited(MouseEvent e) {
// TODO: Add your code here
}

}

飘忽着�?/a> 2006-02-28 19:02 发表评论

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