网络画板java源代码

package net.test; import java.awt.Color; import java.awt.Component; import java.awt.FileDialog; import java.awt.Graphics; import java.awt.Menu; import java.awt.MenuBar; import java.awt.MenuItem; import java.awt.Polygon; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.imageio.ImageIO; import javax.swing.*; import javax.swing.LayoutStyle.ComponentPlacement; import javax.swing.GroupLayout.Alignment; import javax.swing.event.ChangeListener; import javax.swing.event.ChangeEvent; import javax.swing.event.UndoableEditEvent; import javax.swing.event.UndoableEditListener; import javax.swing.undo.AbstractUndoableEdit; import javax.swing.undo.CannotRedoException; import javax.swing.undo.CannotUndoException; import javax.swing.undo.UndoManager; import javax.swing.undo.UndoableEdit; import javax.swing.undo.UndoableEditSupport; // //import Undo.UndoableDrawEdit; //import Undo.UndoableDrawingPanel; //import Undo.UndoManagerHelper.RedoAction; //import Undo.UndoManagerHelper.UndoAction; //import Undo.UndoManagerHelper.UndoRedoAction; //import Undo.UndoableDrawingPanel; import java.awt.event.ItemListener; import java.awt.event.ItemEvent; import java.awt.image.BufferedImage; import java.io.EOFException; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.InetAddress; import java.net.UnknownHostException; public class Main extends JFrame { public static DrawPlace place = new DrawPlace(); public static boolean IsConnect = false; //是否连接 public static boolean TypeFlag; //服务器还是客户端 public static JLabel mark; //设置提示文本 public static boolean Full = false; //填充 public static String ServerIP; //服务器IP public static float PenType = 1.0f; //画笔粗细 public static int DrawType = 0; //画图类型 public static Color color = null; //颜色 public static InetAddress myip = null; //本机IP private JTextField MyIP; public static JTextField GoalIP; public static MenuBar mb=new MenuBar(); public static JTextArea scrollPane = new JTextArea(); //显示状态 public static JButton clear=new JButton("清空"); public Main() throws UnknownHostException { color = new Color(0,0,0); place.setFocusable(true); place.requestFocus(); place.getViewport().setBackground(Color.WHITE); //设置画板背景为白色 JComboBox comboBox = new JComboBox(); comboBox.addItem("自由"); comboBox.addItem("直线"); comboBox.addItem("长方形"); comboBox.addItem("圆形"); JSpinner spinner = new JSpinner(); //线条粗细调整按钮 spinner.setModel(new SpinnerNumberModel(new Float(1), new Float(1), new Float(99), new Float(1))); mark = new JLabel(); mark.setText("线条粗细调整"); Menu m1=new Menu("文件"); //菜单栏 MenuItem m1_4=new MenuItem("新建"); MenuItem m1_1=new MenuItem("打开"); MenuItem m1_2=new MenuItem("保存"); MenuItem m1_3=new MenuItem("退出"); Menu m2=new Menu("编辑"); MenuItem m2_1=new MenuItem("撤销"); MenuItem m2_2=new MenuItem("前进"); JButton Black = new JButton(""); Black.setBackground(Color.BLACK); JButton Red = new JButton(""); Red.setBackground(Color.RED); JButton Blue = new JButton(""); Blue.setBackground(Color.BLUE); JButton Green = new JButton(""); Green.setBackground(Color.GREEN); JButton Yellow = new JButton(""); Yellow.setBackground(Color.YELLOW); JButton White = new JButton(""); White.setBackground(Color.WHITE); MyIP = new JTextField(); MyIP.setColumns(10); MyIP.setEditable(false); myip = InetAddress.getLocalHost(); MyIP.setText(myip.getHostName() + ":" + myip.getHostAddress()); GoalIP = new JTextField(); GoalIP.setColumns(10); GoalIP.setText(""); scrollPane.setText("未连接"); scrollPane.setColumns(10); scrollPane.setEditable(false); scrollPane.setBackground(Color.BLACK); scrollPane.setForeground(Color.GREEN); JButton JoinIn = new JButton("加入连接"); JButton BuildConnect = new JButton("建立连接"); final JButton NowColor = new JButton(""); NowColor.setBackground(Color.BLACK); JLabel label = new JLabel("当前颜色"); JCheckBox FullType = new JCheckBox("填充图形"); JLabel lblip = new JLabel("本机IP"); JLabel lblip_1 = new JLabel("输入服务器IP"); //========================================================= //设置布局 GroupLayout groupLayout = new GroupLayout(getContentPane()); groupLayout.setHorizontalGroup( groupLayout.createParallelGroup(Alignment.LEADING) .addGroup(groupLayout.createSequentialGroup() .addContainerGap() .addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false) .addComponent(spinner, GroupLayout.PREFERRED_SIZE, 69, GroupLayout.PREFERRED_SIZE) // .addComponent(dash,GroupLayout.PREFERRED_SIZE,30,GroupLayout.PREFERRED_SIZE) .addComponent(mark, GroupLayout.PREFERRED_SIZE, 80, GroupLayout.PREFERRED_SIZE) .addGroup(groupLayout.createSequentialGroup() .addComponent(Blue, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE) .addPreferredGap(ComponentPlacement.RELATED) .addComponent(White, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE)) .addGroup(groupLayout.createSequentialGroup() .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) .addComponent(Black, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE) .addComponent(Red, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE)) .addPreferredGap(ComponentPlacement.RELATED) .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) .addComponent(Green, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE) .addComponent(Yellow, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE))) .addGroup(groupLayout.createSequentialGroup() .addComponent(NowColor, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE) .addPreferredGap(ComponentPlacement.RELATED) .addComponent(label)) .addComponent(clear) //添加清空按钮 .addComponent(comboBox, GroupLayout.PREFERRED_SIZE, 67, GroupLayout.PREFERRED_SIZE) .addComponent(FullType, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addGap(28) .addComponent(place, GroupLayout.PREFERRED_SIZE, 300, GroupLayout.PREFERRED_SIZE)//画板宽度 .addGap(39) .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) .addGroup(groupLayout.createSequentialGroup() .addGap(9) .addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false) .addComponent(lblip) .addComponent(lblip_1, GroupLayout.PREFERRED_SIZE, 88, GroupLayout.PREFERRED_SIZE) .addComponent(MyIP, GroupLayout.DEFAULT_SIZE, 139, Short.MAX_VALUE) .addComponent(GoalIP))) .addGroup(groupLayout.createParallelGroup(Alignment.TRAILING) .addGroup(groupLayout.createSequentialGroup() .addComponent(BuildConnect) .addPreferredGap(ComponentPlacement.RELATED) .addComponent(JoinIn) .addGap(12)) .addGroup(groupLayout.createSequentialGroup() .addGap(44))) .addGroup(groupLayout.createSequentialGroup() .addGap(6)) .addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 170, GroupLayout.PREFERRED_SIZE) ) .addGap(17)) ); groupLayout.setVerticalGroup( groupLayout.createParallelGroup(Alignment.LEADING) .addGroup(groupLayout.createSequentialGroup() .addContainerGap() .addComponent(lblip) .addPreferredGap(C