chatdialog.java

聊天工具

package client.chat.chatpane;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.filechooser.FileFilter;


/**
 * 聊天记录对话框
 * @author 洪景泉
 *
 */
public class ChatDialog extends JDialog {

	private static final long serialVersionUID = -5065109993695575062L;
	private JTextArea chatHistory=null;
	private ChatFrame chatFrame=null;
	private JScrollPane jsPane=null;
	
	private JButton historyBtn=null;
	private JPanel jp=null;
	/**
	 * 构造函数
	 * @param chatFrame 主窗体的对象
	 */
	public ChatDialog(ChatFrame chatFrame) {
		
		historyBtn=new JButton("打开历史记录");
		jp=new JPanel();
		jp.setLayout(new BorderLayout());
		
		this.chatFrame=chatFrame;
		chatHistory=new JTextArea();
		chatHistory.setBorder(BorderFactory.createLineBorder(Color.BLACK));
		
		jp.add(historyBtn,BorderLayout.NORTH);
		jp.add(chatHistory,BorderLayout.CENTER);
		
		jsPane=new JScrollPane(jp);
		this.getContentPane().add(jsPane);
		this.setUndecorated(true);
	
//	改变聊天记录对话框大小的监听事件
		chatFrame.addComponentListener(new ComponentListener() {
			public void componentHidden(ComponentEvent e) {
	
			}
	
			public void componentMoved(ComponentEvent e) {
				ChatDialog.this.setSize(ChatDialog.this.chatFrame.getWidth(), 200);
				Point p =ChatDialog.this.chatFrame.getLocationOnScreen();
				Point p1 = new Point(p.x, p.y +ChatDialog.this.chatFrame.getHeight());
				ChatDialog.this.setLocation(p1);
				ChatDialog.this.validate();
			}
	
			public void componentResized(ComponentEvent e) {
				ChatDialog.this.setSize(ChatDialog.this.chatFrame.getWidth(), 200);
				Point p =ChatDialog.this.chatFrame.getLocationOnScreen();
				Point p1 = new Point(p.x, p.y + ChatDialog.this.chatFrame.getHeight());
				ChatDialog.this.setLocation(p1);
				ChatDialog.this.validate();
			}
	
			public void componentShown(ComponentEvent e) {
	
			}
		});
		//打开历史聊天记录对话框的监听事件
		historyBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				JFileChooser fileChooser = new JFileChooser();
				fileChooser.setCurrentDirectory(new File("./chatHistory"));
				File[] files = null;
				fileChooser.setFileFilter(new FileFilter() {

					public boolean accept(File f) {//此过滤器是否接受给定的文件
						// TODO Auto-generated method stub
						String strFile = f.getName();
						if (strFile.endsWith(".log")) {
							return true;
						}
						return false;
					}

					public String getDescription() {
						// TODO Auto-generated method stub
						return "*.log";
					}
				});

				fileChooser.setMultiSelectionEnabled(true);
				if (fileChooser.showOpenDialog(ChatDialog.this.chatFrame) == JFileChooser.APPROVE_OPTION) {
					files = fileChooser.getSelectedFiles();
				} else {
					return;
				}
				if (files.length > 0) {
					ChatDialog.this.chatFrame.getLPane().getCd().getChatHistory().setText("");
				}
				for (int i = 0; i < files.length; i++) {
					FileReader fr = null;
					BufferedReader br = null;
					try {
						fr = new FileReader(files[i]);
						br = new BufferedReader(fr);
						String str = null;
						while ((str = br.readLine()) != null) {
							ChatDialog.this.chatFrame.getLPane().getCd().getChatHistory().append(
									str + "\n");
						}
					} catch (FileNotFoundException e1) {
						// TODO Auto-generated catch block
						e1.printStackTrace();
					} catch (IOException e2) {
						// TODO Auto-generated catch block
						e2.printStackTrace();
					} finally {
						try {
							fr.close();
							br.close();
						} catch (IOException e1) {
							// TODO Auto-generated catch block
							e1.printStackTrace();
						}
					}
				
				}
			}
			}
				
		);
	
		
		

		
		
		
		
		
		
		
	}
	public JTextArea getChatHistory() {
		return chatHistory;
	}
	public void setChatHistory(JTextArea chatHistory) {
		this.chatHistory = chatHistory;
	}
}