//powered by compower
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;

class Point implements Serializable
{
 int x,y;
 Color col;
 int tool;
 int boarder;

 Point(int x, int y, Color col, int tool, int boarder)
 {
  this.x = x;
  this.y = y;
  this.col = col;
  this.tool = tool;
  this.boarder = boarder;
  }
}

class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
 int x = -1, y = -1;
 int con = 1;//畫筆大小
 int Econ = 5;//橡皮大小

 int toolFlag = 0;//toolFlag:工具標(biāo)記
      //toolFlag工具對應(yīng)表：
      //（0--畫筆）；（1--橡皮）；（2--清除）；
      //（3--直線）；（4--圓）；（5--矩形）；

 Color c = new Color(0,0,0); //畫筆顏色
 BasicStroke size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//畫筆粗細
 Point cutflag = new Point(-1, -1, c, 6, con);//截斷標(biāo)志

 Vector paintInfo = null;//點信息向量組
 int n = 1;

 FileInputStream picIn = null;
 FileOutputStream picOut = null;
 
 ObjectInputStream VIn = null;
 ObjectOutputStream VOut = null;

// *工具面板--畫筆，直線，圓，矩形，多邊形,橡皮，清除*/
 Panel toolPanel;
 Button eraser, drLine,drCircle,drRect;
 Button clear ,pen;
 Choice ColChoice,SizeChoice,EraserChoice;
 Button colchooser;
 Label 顏色,大小B,大小E;
 //保存功能
 Button openPic,savePic;
 FileDialog openPicture,savePicture;
 

  paintboard(String s)
 { 
  super(s);
  addMouseMotionListener(this);
  addMouseListener(this);

  paintInfo = new Vector();

/*各工具按鈕及選擇項*/
  //顏色選擇
  ColChoice = new Choice();
  ColChoice.add("black");
  ColChoice.add("red");
  ColChoice.add("blue");
  ColChoice.add("green");
  ColChoice.addItemListener(this);
  //畫筆大小選擇
  SizeChoice = new Choice();
  SizeChoice.add("1");
  SizeChoice.add("3");  
  SizeChoice.add("5");
  SizeChoice.add("7");
  SizeChoice.add("9");
  SizeChoice.addItemListener(this);
  //橡皮大小選擇
  EraserChoice = new Choice();
  EraserChoice.add("5");
  EraserChoice.add("9");
  EraserChoice.add("13");
  EraserChoice.add("17");
  EraserChoice.addItemListener(this);
  ////////////////////////////////////////////////////
  toolPanel = new Panel();