import?java.awt.*;
import?java.util.*;
import?java.awt.geom.*;
import?java.awt.image.*;
import?java.awt.event.*;
import?java.io.*;
import?javax.swing.*;
import?com.sun.image.codec.jpeg.*;
class?Point
{int?xy;
?Point（int?xint?y）
?{this.x=x;this.y=y;
?}
}
public?class?MakeJPEG?extends?Canvas?implements?MouseMotionListenerMouseListenerActionListener
{??
???int?x=-1y=-1橡皮擦通知=0清除通知=0;
???Vector?v=null;int?n=1;
???Graphics2D??ggg?;?????????????????????????????????????????????
???BufferedImage?image;??????????????????????????????????????????
???frame?window;
???Button?保存調色板橡皮清除畫筆獲取屏幕繪制圖形;
???Color?畫筆顏色;
???Panel?pCenterpSouthpNorth;
??
?public?MakeJPEG（）
?{?
????保存=new?Button（“將繪制的圖形或屏幕保存為JPG文件“）;
????獲取屏幕=new?Button（“獲取屏幕“）;
????繪制圖形=new?Button（“繪制圖形“）;
????調色板=new?Button（“打開調色板“）;
????畫筆=new?Button（“畫筆“）;
????橡皮=new?Button（“橡皮“）;
????清除=new?Button（“清除“）;
????調色板.addActionListener（this）;
????繪制圖形.addActionListener（this）;
????保存.addActionListener（this）;
????畫筆.addActionListener（this）;
????橡皮.addActionListener（this）;
????清除.addActionListener（this）;
????獲取屏幕.addActionListener（this）;
????畫筆顏色=new?Color（000）;
????addMouseMotionListener（this）;?
????addMouseListener（this）;
????v=new?Vector（）;?
????setBackground（Color.white）;?????????????????????????????????
????image=new?BufferedImage（200200BufferedImage.TYPE_INT_RGB）;
????ggg=image.createGraphics（）;?????????????????????????????????
????Rectangle2D?rect=new?Rectangle2D.Double（00200200）;??????
????ggg.setColor（getBackground（））;
????ggg.fill（rect）;?????????????????????????????????????????????
????window=new?frame（“JPEG圖像生成器“）;
????pCenter=new?Panel（）;
????pCenter.setLayout（null）;
????pCenter.add（this）;
????pCenter.setBackground（Color.gray）;
????this.setBounds（8030210210）;??????????????????????????????
????window.add（pCenterBorderLayout.CENTER）;
????pNorth=new?Panel（）;
????pNorth.add（保存）;
????pNorth.add（繪制圖形）;
????pNorth.add（獲取屏幕）;
????window.add（pNorthBorderLayout.NORTH）;
????pSouth=new?Panel（）;
????pSouth.add（調色板）;
????pSouth.add（橡皮）;
????pSouth.add（清除）;
????pSouth.add（畫筆）;
????window.add（pSouthBorderLayout.SOUTH）;
????window.setVisible（true）;
????window.addWindowListener（new?WindowAdapter（）
???????????????????{?
?????????????????????public?void?windowClosing（WindowEvent?e）
?????????????????????{?
????????????????????????System.exit（0）;
??????	?????????????}
??????	???????????}）;
????window.setBounds（10080390380）;
????window.validate（）;?????????????????????????????????????????
?}
?public?void?paint（Graphics?g）?????????????????????????????????
?{
????if（x!=-1&&y!=-1&&橡皮擦通知==0&&清除通知==0）
?????{??
????????g.setColor（畫筆顏色）;
????????n=v.size（）;
????????for（int?i=0;i?????????{
???????????Point?p1=（Point）v.elementAt（i）;?
???????????Point?p2=（Point）v.elementAt（i+1）;?
???????????g.drawLine（p1.xp1.yp2.xp2.y）;?????????????????????
???????????ggg.setColor（g.getColor（））;
???????????ggg.draw

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????6992??2003-12-09?08:54??MakeJPEG.java

-----------?---------??----------?-----??----

?????????????????6992????????????????????1