frendlistpanel.java

JAVA编写的聊天小程序！！程序默认需放到D:下

package group.client;

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

public class FrendListPanel extends JPanel
{
	private JList frendList;
	private DefaultListModel model;

	public FrendListPanel(String title, int rowSize, int hSize)
	{
		model = new DefaultListModel();
		frendList = new JList();

		frendList.setVisibleRowCount(rowSize);
		frendList.setFixedCellHeight(20);
		frendList.setFixedCellWidth(hSize);
		frendList.setModel(model);

		add(new JScrollPane(frendList));

		Border titleBorder = BorderFactory.createTitledBorder(
			BorderFactory.createEtchedBorder(EtchedBorder.RAISED,
				Color.black, Color.white), title);			//创建一个用于面板的有标题的3D直线边界
		setBorder(titleBorder);
	}

	public void updateFrend(String ID)
	{
		if(ID.endsWith("move"))
		{
			model.removeElement(ID.substring(0, ID.lastIndexOf("move")));
		}
		else
		{
			model.addElement(ID);
		}
	}

	public String getID()
	{
		String tmp = (String)frendList.getSelectedValue();

		if(tmp == null)
		{

			return "";
		}

		return tmp.substring(tmp.indexOf("[") + 1, tmp.lastIndexOf("]"));
	}

	/*public static void main(String[] args)
	{
		FrendListPanel f = new FrendListPanel("wwww", 21, 150);
		JFrame frame = new JFrame("Test");
		frame.getContentPane().add(f);
		frame.setSize(400, 300);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.show();
	}*/
}