filepanel.java

该系统是一个基于p2p的即时聊天系统

/*
 * @(#) FilePanel.java
 * Copyright 2004 HWStudio. All rights reserved.
 */
package hws.item.smart.panel.function.admin;
//导入核心Java类库
import java.awt.Insets;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.util.List;
import javax.swing.JTree;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JSplitPane;
import javax.swing.JScrollPane;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeSelectionModel;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
//导入自定义Java类库
import hws.item.smart.misc.ImageShop;
import hws.item.smart.misc.SBChanger;
import hws.item.smart.action.admin.file.StopFileAction;
import hws.item.smart.action.admin.file.StartFileAction;
import hws.item.smart.action.admin.file.RestartFileAction;
import hws.item.smart.utility.chat.UserInfo;
import hws.item.smart.utility.admin.XMLAccessor;
import hws.item.smart.utility.admin.FileService;
import hws.item.smart.utility.share.ShareInfo;
import hws.item.smart.utility.share.SharesInfo;
//导入第三方Java类库
import org.jdom.Element;
/**
 * 获取服务面板
 *
 * @version 0.1 2005-08-25
 * @author Hwerz
 */
public class FilePanel extends JPanel {
    /*------------------------------------------------------------------------*
     *                                属性定义                                *
     *------------------------------------------------------------------------*/
    /**
     * 文件树根节点
     */
    private static final DefaultMutableTreeNode FILE_ROOT =
        new DefaultMutableTreeNode("共享文件");
    /**
     * 好友树根节点
     */
    private static final DefaultMutableTreeNode FRIEND_ROOT =
        new DefaultMutableTreeNode("共享好友");
    /**
     * 该类自身的一个静态引用
     */
    private static FilePanel panel;
    /**
     * 文件视图
     */
    private FileViewPanel fileViewPanel;
    /**
     * 好友视图
     */
    private FriendViewPanel friendViewPanel;
    /*------------------------------------------------------------------------*
     *                                构造函数                                *
     *------------------------------------------------------------------------*/
    /**
     * 构造函数为私有，这样在整个运行过程中该类就只能有一个实例
     */
    private FilePanel() {
        super(new GridBagLayout());
        //启动文件服务
        FileService.getInstance().start();
        //工具栏面板
        GridBagConstraints constraints = new GridBagConstraints(
            //gridx, gridy
            0, 0,
            //gridwidth, gridheight
            1, 1,
            //weightx, weighty
            1.0, 0.0,
            //anchor
            GridBagConstraints.NORTH,
            //fill
            GridBagConstraints.HORIZONTAL,
            //insets
            new Insets(5, 0, 0, 0),
            //ipadx, ipady
            0, 0);
        add(new Toolbar(), constraints);
        //分割条面板
        friendViewPanel = new FriendViewPanel();
        fileViewPanel = new FileViewPanel();
        JSplitPane spliter = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, false,
            fileViewPanel, friendViewPanel);
        spliter.setOneTouchExpandable(true);
        spliter.setDividerLocation(200);
        constraints.gridy = 1;
        constraints.weighty = 1.0;
        constraints.fill = GridBagConstraints.BOTH;
        constraints.insets = new Insets(5, 5, 5, 5);
        add(spliter, constraints);
    }
    /*------------------------------------------------------------------------*
     *                                公共方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 对该类提供的一个全局访问点，用来实例化该对象
     *
     * @return 该类唯一的一个实例
     */
    public static FilePanel getInstance() {
        if (panel == null) {
            panel = new FilePanel();
        }
        return panel;
    }
    /**
     * 刷新
     */
    public void refresh() {
        fileViewPanel.reloadFiles();
    }
    /*------------------------------------------------------------------------*
     *                                私有方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 设置树型组件的附加选项
     *
     * @param tree 待设置的树型组件
     */
    private void setTree(JTree tree) {
        DefaultTreeSelectionModel model = new DefaultTreeSelectionModel();
        model.setSelectionMode(model.SINGLE_TREE_SELECTION);
        tree.setSelectionModel(model);
        tree.setSelectionRow(0);
        tree.expandRow(0);
    }
    /*------------------------------------------------------------------------*
     *                                 内部类                                 *
     *------------------------------------------------------------------------*/
    /**
     * 工具栏面板
     */
    class Toolbar extends JPanel {
        /**
         * Create a new instance of this class
         */
        public Toolbar() {
            super(new FlowLayout(FlowLayout.CENTER, 5, 0));
            //启动服务
            JButton button = new JButton(StartFileAction.getInstance());
            button.setIcon(ImageShop.START_IMAGEICON);
            button.addMouseListener(new SBChanger(
                StartFileAction.getInstance().getHintInfo(), false));
            add(button);
            //停止服务
            button = new JButton(StopFileAction.getInstance());
            button.setIcon(ImageShop.STOP_IMAGEICON);
            button.addMouseListener(new SBChanger(
                StopFileAction.getInstance().getHintInfo(), false));
            add(button);
            //重启服务
            button = new JButton(RestartFileAction.getInstance());
            button.setIcon(ImageShop.RESTART_IMAGEICON);
            button.addMouseListener(new SBChanger(
                RestartFileAction.getInstance().getHintInfo(), false));
            add(button);
        }
    }
    /**
     * 文件视图
     */
    class FileViewPanel extends JPanel implements TreeSelectionListener {
        /**
         * 文件树的视图
         */
        private JTree fileTree;
        /**
         * 文件树的模型
         */
        private DefaultTreeModel fileModel;
        /**
         * Create a new instance of this class
         */
        public FileViewPanel() {
            super(new GridBagLayout());
            //文件视图标签
            GridBagConstraints constraints = new GridBagConstraints(
                //gridx, gridy
                0, 0,
                //gridwidth, gridheight
                1, 1,
                //weightx, weighty
                0.0, 0.0,
                //anchor
                GridBagConstraints.NORTHWEST,
                //fill
                GridBagConstraints.NONE,
                //insets
                new Insets(0, 5, 0, 0),
                //ipadx, ipady
                0, 0);
            add(new JLabel("文件视图"), constraints);
            //树型组件
            fileModel = new DefaultTreeModel(FILE_ROOT);
            fileTree = new JTree(fileModel);
            fileTree.addTreeSelectionListener(this);