swt中用什么做类似qq聊天框
swt中用什么做类似qq聊天框（中间可以输入文字和图片，并可以粘贴复制），求给思路或源码。本人邮箱：472852263@qq.com！别说lumaQQ有这个，我看过了，没找到。。最好是自己理解的。。。万分感谢！！
------解决方案--------------------
swing实现的三个类：JTextPane StyledDocument ImageIcon
理解下面代码（可直接执行），是告诉如何显示多媒体文本和图片的

import java.awt.BorderLayout;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;



import javax.swing.BorderFactory;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextPane;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

import javax.swing.text.BadLocationException;

import javax.swing.text.Style;

import javax.swing.text.StyleConstants;

import javax.swing.text.StyleContext;

import javax.swing.text.StyledDocument;



public class Demo extends JPanel implements ActionListener {

    private String newline = "\n";



    protected JLabel actionLabel;



    public Demo() {

        setLayout(new BorderLayout());







        //Create a label to put messages during an action event.

        actionLabel = new JLabel("Type text in a field and press Enter.");

        actionLabel.setBorder(BorderFactory.createEmptyBorder(10,0,0,0));



        //Lay out the text controls and the labels.

        JPanel textControlsPane = new JPanel();

        GridBagLayout gridbag = new GridBagLayout();

        GridBagConstraints c = new GridBagConstraints();

        textControlsPane.setLayout(gridbag);



        c.gridwidth = GridBagConstraints.REMAINDER; //last

        c.anchor = GridBagConstraints.WEST;

        c.weightx = 1.0;

        textControlsPane.add(actionLabel, c);

        textControlsPane.setBorder(

                BorderFactory.createCompoundBorder(

                                BorderFactory.createTitledBorder("Text Fields"),

                                BorderFactory.createEmptyBorder(5,5,5,5)));



        //Create a text&