talkfrm.java

简单的聊天程序

import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.StringTokenizer;

import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.event.*;

public class TalkFrm extends JFrame implements ActionListener{

	private MyEditorPane showPane;
	private JEditorPane editorPane;
	private JPanel downP;
	private JPanel upP;
	private JPanel fontSetP; 
	private JButton fontBtn,faceBtn;
	private FaceFrm faceFrm;
	private Font currentFont;
	private MyFont myFont;
	private boolean isEnter= false;
	private String myIp, talkerIp,talkerNickname,myNickname;
	private DatagramSocket socketS;
	private DatagramPacket packetS;
	

	public TalkFrm(String talkerNickname,
				   String myNickname,
				   String talkerIp){
		buildGUI(myNickname,talkerNickname);
		init(talkerIp);
		hookEvent();
	}
	private void showTalkMsg(String s){
		StringTokenizer st = new StringTokenizer(s,"$");
		//显示图像时候
		if(st.countTokens()==1){
			this.showPane.appendImage(s, false);
		}
		else {
		//显示文字时候，前一部分为消息，后部分为字体信息
		this.showPane.appendText(st.nextToken(),
				MyFont.createMyFont(st.nextToken()),
				false);
		}
	}
	private void buildGUI(String myNickname,String talkerNickname){
		this.myNickname = myNickname;
		this.talkerNickname = talkerNickname;
		Container c = this.getContentPane();
		Color color = new Color(255,200,200);
		Border thinBorder = BorderFactory.createLineBorder(color);
		Border boldBorder = BorderFactory.createEtchedBorder(EtchedBorder.LOWERED,Color.pink,color);
		showPane = new MyEditorPane(myNickname,talkerNickname);
		showPane.setBorder(boldBorder);
		editorPane = new JEditorPane();
		editorPane.setBorder(boldBorder);

		JPanel toolBar = new JPanel();
		toolBar.setLayout(new FlowLayout(FlowLayout.LEFT,5,0));
		fontBtn = new JButton();
		fontBtn.setIcon(new ImageIcon("Icon/font.gif"));
		fontBtn.setPreferredSize(new Dimension(20,20));
		fontBtn.setBorderPainted(false);
		fontBtn.setBackground(Color.pink);
		fontBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				fontSetP.setVisible(!fontSetP.isVisible());
			}
		});
		faceBtn = new JButton();
		faceBtn.setBorderPainted(false);
		faceBtn.setBackground(Color.pink);
		faceBtn.setPreferredSize(new Dimension(20,20));
		faceBtn.setIcon(new ImageIcon("Icon/face.gif"));
		faceBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				faceFrm.setVisible(!faceFrm.isVisible());
			}
		});
		toolBar.add(fontBtn);
		toolBar.add(faceBtn);
		toolBar.setBackground(Color.pink);

		JPanel buttonPane = new JPanel();
		buttonPane.setLayout(new GridLayout(1,2));
		JPanel leftP = new JPanel();
		leftP.setBackground(Color.pink);
		leftP.setLayout(new FlowLayout(FlowLayout.LEFT,2,0));
		JButton talkLogBtn = new JButton("聊天记录");
		JButton clearBtn = new JButton("清除");
		talkLogBtn.addActionListener(this);
		clearBtn.addActionListener(this);
		leftP.add(talkLogBtn);
		leftP.add(clearBtn);
		JPanel rightP = new JPanel();
		rightP.setBackground(Color.pink);
		rightP.setLayout(new FlowLayout(FlowLayout.RIGHT,2,0));
		JButton sendBtn = new JButton("发送");
		JButton keysetBtn = new JButton("快捷键");
		sendBtn.addActionListener(this);
		keysetBtn.addActionListener(this);
		rightP.add(sendBtn);
		rightP.add(keysetBtn);
		buttonPane.add(leftP);
		buttonPane.add(rightP);

		downP = new JPanel();
		downP.setLayout(new BorderLayout());
		downP.add(toolBar,BorderLayout.NORTH);
		downP.add(editorPane,BorderLayout.CENTER);
		downP.add(buttonPane,BorderLayout.SOUTH);
		downP.setPreferredSize(new Dimension(500,200));

		fontSetP = new JPanel();
		fontSetP.setBackground(Color.pink);
		fontSetP.setBorder(thinBorder);
		fontSetP.setLayout(new FlowLayout(FlowLayout.LEFT,5,0));
		final JComboBox fontNameBox = new JComboBox();
		fontNameBox.setMaximumRowCount(5);
		final String[] localFontNames = 
			GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
		for(int i=0;i < localFontNames.length; ++i){
			fontNameBox.addItem(localFontNames[i]);
		}
		fontNameBox.addItem("                        ");
		fontNameBox.setSelectedItem("宋体");
		fontNameBox.setBackground(Color.white);
		fontNameBox.addItemListener(new ItemListener(){
			public void itemStateChanged(ItemEvent e) {
				if(fontNameBox.getSelectedIndex()==localFontNames.length){
					fontNameBox.setSelectedItem("宋体");
				}
				currentFont = new Font(
						(String)fontNameBox.getSelectedItem(),
						currentFont.getStyle(),
						currentFont.getSize());
				editorPane.setFont(currentFont);
				myFont.fontName = (String)fontNameBox.getSelectedItem();
			}
		});
		final JComboBox fontSizeBox = new JComboBox();
		fontSizeBox.addItem("20");
		fontSizeBox.addItem("25");
		fontSizeBox.addItem("32");
		fontSizeBox.addItem("40");
		fontSizeBox.addItem("65");
		fontSizeBox.addItem("                ");
		fontSizeBox.setBackground(Color.white);
		fontSizeBox.addItemListener(new ItemListener(){
			public void itemStateChanged(ItemEvent e) {
				if(fontSizeBox.getSelectedIndex()==5){
					fontSizeBox.setSelectedItem("20");
				}
				currentFont = new Font(
						currentFont.getName(),
						currentFont.getStyle(),
						Integer.parseInt((String)fontSizeBox.getSelectedItem()));
				myFont.size = 3+ fontSizeBox.getSelectedIndex()% 5;
				editorPane.setFont(currentFont);
			}
		});
		JButton boldBtn = new JButton();
		boldBtn.setBackground(Color.pink);
		boldBtn.setIcon(new ImageIcon("Icon/bold.gif"));
		boldBtn.setPreferredSize(new Dimension(20,20));
		boldBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				int style;
				if(currentFont.isPlain()){
					style = Font.BOLD;
				}
				else if(currentFont.isBold()){

					if(currentFont.isItalic()){
						style = Font.ITALIC;
					}
					else{
						style = Font.PLAIN;
					}
				}
				else{
					style = Font.ITALIC|Font.BOLD;
				}
				currentFont = new Font(currentFont.getName(),
						style,
						currentFont.getSize());
				editorPane.setFont(currentFont);
				myFont.style = style;

			}
		});
		JButton italicBtn = new JButton();
		italicBtn.setBackground(Color.pink);
		italicBtn.setIcon(new ImageIcon("Icon/italic.gif"));
		italicBtn.setPreferredSize(new Dimension(20,20));
		italicBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				int style;
				if(currentFont.isPlain()){
					style = Font.ITALIC;
				}
				else if(currentFont.isItalic()){

					if(currentFont.isBold()){
						style = Font.BOLD;
					}
					else{
						style = Font.PLAIN;
					}
				}
				else{
					style = Font.ITALIC|Font.BOLD;
				}
				currentFont = new Font(currentFont.getName(),
						style,
						currentFont.getSize());
				editorPane.setFont(currentFont);
				myFont.style = style;

			}
		});
		JButton underlineBtn = new JButton();
		underlineBtn.setBackground(Color.pink);
		underlineBtn.setIcon(new ImageIcon("Icon/underline.gif"));
		underlineBtn.setPreferredSize(new Dimension(20,20));
		underlineBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				myFont.isUnderLine = true;
			}
		});
		JButton colorBtn = new JButton();
		colorBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				editorPane.setForeground(
						JColorChooser.showDialog(
								TalkFrm.this, "选取颜色", Color.black));
				myFont.color = MyUtilities.getColor0XFromRGB(editorPane.getForeground());
			}
		});
		colorBtn.setBackground(Color.pink);
		colorBtn.setIcon(new ImageIcon("Icon/color.gif"));
		colorBtn.setPreferredSize(new Dimension(20,20));
		fontSetP.add(fontNameBox);
		fontSetP.add(fontSizeBox);
		fontSetP.add(boldBtn);
		fontSetP.add(italicBtn);
		fontSetP.add(underlineBtn);
		fontSetP.add(colorBtn);
		fontSetP.setVisible(false);
		upP = new JPanel();
		upP.setLayout(new BorderLayout());
		upP.add(showPane,BorderLayout.CENTER);
		upP.add(fontSetP,BorderLayout.SOUTH);
		upP.setPreferredSize(new Dimension(500,300));
		c.setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
		c.add(upP);
		c.add(downP);

		this.setSize(500,535);
		this.setIconImage(new ImageIcon("Icon/titleIcon.gif").getImage());
		this.setTitle("与猫猫聊天中");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		//居中
		this.setLocationRelativeTo(null);
		this.setVisible(true);
	}
	private void hookEvent(){
		this.addComponentListener(new ComponentAdapter(){
			public void componentResized(ComponentEvent e){
				Dimension d = TalkFrm.this.getContentPane().getSize();
				downP.setPreferredSize(new Dimension(d.width,2*d.height/5));
				upP.setPreferredSize(new Dimension(d.width,3*d.height/5));
				downP.revalidate();
				upP.revalidate();
			}
		});
		this.editorPane.addKeyListener(new KeyAdapter(){
			public void keyPressed(KeyEvent e){
				if(e.getKeyCode()==KeyEvent.VK_ENTER&&
						e.isControlDown()&& !isEnter){
					sendMsg();
					MyUtilities.deleteUpLine();
				}
				else if(e.getKeyCode()==KeyEvent.VK_ENTER&&isEnter){
					sendMsg();
					MyUtilities.deleteUpLine();
				}
			}
		});
	}
	private void sendMsg(){
		if(!this.editorPane.getText().equals("")){
			this.showPane.appendText(editorPane.getText(),this.myFont,true);
			//发给对方信息除去分割符$
			String s = this.myNickname+"$"+this.talkerNickname+"$"+
						myIp+"$"+
						editorPane.getText().replace('$', ' ')+
						"$"+this.myFont.toString();
			this.editorPane.setText("");
			try {
				packetS = new DatagramPacket(s.getBytes(),0,s.length(),
						InetAddress.getByAddress(MyUtilities.getByteFromString(talkerIp)),
						9000);
				//发送数据报	
				this.socketS.send(packetS);
			} catch (Exception e)
			{
				e.printStackTrace();
			}
			return;
		}
		Toolkit.getDefaultToolkit().beep();
		JOptionPane.showMessageDialog(null,"不能发送空消息！");
		this.editorPane.setCaretPosition(0);
	}
	private void init(String talkerIp){
		if(faceFrm == null){
			faceFrm = new FaceFrm();
			faceFrm.setLocation(this.getLocation().x,
					this.getLocation().y+upP.getPreferredSize().height+50);
		}
		this.currentFont = new Font("宋体",Font.ROMAN_BASELINE,20);
		this.editorPane.setFont(this.currentFont);
		this.myFont = new MyFont();

		//初始化连接
		try {
			this.socketS = new DatagramSocket();
			this.myIp = InetAddress.getLocalHost().getHostAddress();
		} catch (Exception e)
		{}
		this.talkerIp = talkerIp;
		
	}
	public void actionPerformed(ActionEvent e) {
		String s = e.getActionCommand();
		if(s.equals("发送")){
			sendMsg();
		}
		else if(s.equals("清除")){
			editorPane.setText("");
		}
		else if(s.equals("快捷键")){
//			dealKeySet();
		}else{
//			dealTalkLog();
		}

	}
	private class FaceFrm extends JDialog{

		public FaceFrm(){
			this.add(new FaceCanvas());
			this.setUndecorated(true);
			this.pack();
		}
		private class FaceCanvas extends Canvas{
			private ImageIcon img;
			private int CELL;
			private int currentX,currentY;
			public FaceCanvas(){
				img = new ImageIcon("GIF/faces.gif");
				currentX =0;
				currentY =0;
				this.setPreferredSize(
						new Dimension(img.getIconWidth(),img.getIconHeight()));
				CELL = img.getIconWidth()/15;
				this.setFocusable(true);
				hookEvent();
			}
			public void paint(Graphics g){
				g.drawImage(img.getImage(), 0, 0, null);
				g.draw3DRect(currentX*CELL, currentY*CELL, CELL,CELL,true);
			}
			private void hookEvent(){
				this.addMouseMotionListener(new MouseMotionAdapter(){
					public void mouseMoved(MouseEvent e){
						currentX = e.getPoint().x/CELL;
						currentY = e.getPoint().y/CELL;
						FaceCanvas.this.repaint();
					}
				});
				this.addMouseListener(new MouseAdapter(){
					public void mouseClicked(MouseEvent e){
						dealEnter();
					}
					public void mouseExited(MouseEvent e){
						FaceFrm.this.setVisible(false);
					}
				});
				this.addKeyListener(new KeyAdapter(){
					public void keyPressed(KeyEvent e){
						switch(e.getKeyCode()){
						case KeyEvent.VK_ESCAPE:
							FaceFrm.this.setVisible(false);
							break;
						case KeyEvent.VK_UP:
							currentY = currentY-1<0?0:currentY-1;
							FaceCanvas.this.repaint();
							break;
						case KeyEvent.VK_DOWN:
							currentY = (currentY+1) % 6;
							FaceCanvas.this.repaint();
							break;
						case KeyEvent.VK_RIGHT:
							currentX = (currentX+1) % 16;
							FaceCanvas.this.repaint();
							break;
						case KeyEvent.VK_LEFT:
							currentX = currentX-1<0?0:currentX-1;
							FaceCanvas.this.repaint();
							break;
						case KeyEvent.VK_ENTER:
							dealEnter();
						}
					}
				});
			}
			private void dealEnter(){
				//显示自己的一端
				String imgName = String.valueOf(currentY)+currentX;
				TalkFrm.this.showPane.appendImage(imgName,true);
				MyUtilities.playSound("Sound/Ping.wav");
				//发送给对方
				try {
					packetS = new DatagramPacket(imgName.getBytes(),0,imgName.length(),
							InetAddress.getByAddress(talkerIp.getBytes()),
							9000);
					//发送数据报	
					socketS.send(packetS);
				} catch (Exception e)
				{}

			}

		}
	}

}