import java.awt.Color;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;

public class ClientUtil {
	/**
	 * 处理已接收信息，将表情与字符分开
	 */
	public static ArrayList dealmessage(String message) {
		String msg = message;
		// 处理字符串

		ArrayList list = new ArrayList();
		ArrayList substrlist = new ArrayList();
		list.add(0);

		Pattern p = Pattern.compile(".gif");
		Matcher m = p.matcher(msg);
		while (m.find()) {
			int start = m.start() - 2;
			list.add(start);
			start = start + 6;
			if (start > msg.length()) {
				break;
			}
			list.add(start);
		}
		
		for (int i = 0; i < list.size(); i++) {
			if (i < list.size()-1) {
				int begin = Integer.parseInt(list.get(i).toString());
				int over = Integer.parseInt(list.get(i + 1).toString());
				String subs = msg.substring(begin, over);
				substrlist.add(subs);
			}else{
				String subs = msg.substring(Integer.parseInt(list.get(i).toString()));
				substrlist.add(subs);
			}
		}
		return substrlist;
	}
	
	/**
	 * 将处理过的信息显示在聊天面板上
	 */
	public void printmsg(ArrayList list,JTextPane tPane,Message u){
		Icon image = null;
		JTextPane textPane = tPane;
		StyledDocument doc = textPane.getStyledDocument();
		SimpleAttributeSet attr = new SimpleAttributeSet();
		StyleConstants.setForeground(attr, Color.red);
		ArrayList msglist = list;
		Pattern p = Pattern.compile(".gif");
		try {
			doc.insertString(doc.getLength(), u.toString() ,
					attr);
		} catch (BadLocationException e1) {
			e1.printStackTrace();
		}
		for (int i = 0; i < msglist.size(); i++) {
			String sub = msglist.get(i).toString();
			Matcher m = p.matcher(sub);
			if(m.find()){
				URL url = this.getClass().getClassLoader().getResource("Image/" + sub);
				textPane.setCaretPosition(doc.getLength()); // 设置插入位置
				image = new ImageIcon(url);
				textPane.insertIcon(image);
			}else{
				try {
					doc.insertString(doc.getLength(), sub ,
							attr);
				} catch (BadLocationException e) {
					e.printStackTrace();
				}
			}
		}
		try {
			doc.insertString(doc.getLength(), "\n" ,
					attr);
		} catch (BadLocationException e) {
			e.printStackTrace();
		}
	}
}