chatpanel.java

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/*
 * Copyright (c) 2000 Lyrisoft Solutions, Inc.
 * Used by permission
 */
package com.lyrisoft.chat.client.gui.awt102;

import java.awt.*;
import java.util.StringTokenizer;
import java.util.NoSuchElementException;

import com.lyrisoft.chat.Translator;
import com.lyrisoft.chat.ICommands;
import com.lyrisoft.chat.client.gui.IChatRoom;
import com.lyrisoft.chat.client.gui.IChatClientInputReceiver;
import com.lyrisoft.chat.client.gui.IChatGUIFactory;
import com.lyrisoft.chat.client.gui.IQuery;
import com.lyrisoft.chat.client.gui.IQueryCallback;
import com.lyrisoft.awt.*;

/**
 * JDK1.0.2 compliant ChatPanel.
 *
 * This object implements IChatRoom.  It is a Panel, not a Frame.  This way, we
 * can stick these things anywhere, not necessarily just in a frame.
 */
public class ChatPanel extends Panel implements IChatRoom, IQueryCallback {
    protected Color bgColor;
    protected IChatClientInputReceiver _inputReceiver;
    protected String _room;
    protected String _title;
    protected IChatGUIFactory _factory;
    
    protected GridBagLayout gridbag = new GridBagLayout();
    protected TextArea txtMessages;
    protected List lstUsers;
    protected TextField txtInput;

    protected Panel _buttonPanel;
    
    protected Component btnClose;
    protected Component btnEmote;
    protected Component btnPing;
    protected Component btnUserInfo;
    protected Component btnEmotePrivate;
    protected Component btnPrivate;
    protected Component btnStats;
    protected Component btnHelp;

    protected MenuItem miPrivate = new MenuItem(Translator.getMessage("label.private"));
    protected MenuItem miEmotePrivate = new MenuItem(Translator.getMessage("label.mesg"));
    protected MenuItem miEmote = new MenuItem(Translator.getMessage("label.emote"));
    protected MenuItem miStats = new MenuItem(Translator.getMessage("label.stats"));
    protected MenuItem miPing = new MenuItem(Translator.getMessage("label.ping"));
    protected MenuItem miWhois = new MenuItem(Translator.getMessage("label.whois"));

    protected boolean _showingBigButtons = true;

    protected static final int PING = 0;
    protected static final int PRIVATE = 1;
    protected static final int EMOTE = 2;
    protected static final int PRIVATE_EMOTE = 3;
    protected static final int WHOIS = 4;

    // Netscape for Mac doesn't like my pop up dialog windows....
    public static boolean s_useDialogs = false;

    public ChatPanel(IChatGUIFactory factory, String room, String title,
                     IChatClientInputReceiver inputReceiver) 
    {
        _title = title;
        _factory = factory;

        bgColor = (Color)factory.getAttribute("bgColor");
        if (bgColor == null) {
            bgColor = new Color(0x384CC7);
        }

        _room = room;
        _inputReceiver = inputReceiver;
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }

    public ChatPanel(IChatGUIFactory factory, String room,
                     IChatClientInputReceiver inputReceiver) 
    {
        this(factory, room, room, inputReceiver);
    }


    public String getName() {
        return _room;
    }

    public void requestFocus() {
        txtInput.requestFocus();
    }

    // receive messages from the ChatPanel
    public void inputEvent(String txt) {
        _inputReceiver.inputEvent(_room, txt);
    }

    public void displayPrivateMessage(String user, String message) {
        displayMessage(Translator.getMessage("private", user, message));
    }

    public void displayPrivateEmote(String user, String message) {
        displayMessage(Translator.getMessage("mesg", user, message));
    }

    public void displayMessage(String user, String message) {
        displayMessage(user + ": " + message);
    }

    public void displayMessage(String message) {
        txtMessages.appendText(message + "\n");
    }

    public void displayError(String error) {
//        _factory.playAudioClip("error.au");
        displayMessage(Translator.getMessage("error", error));
    }

    public void setUserList(String[] users) {
        synchronized (lstUsers) {
            lstUsers.clear();
            for (int i=0; i < users.length; i++) {
                lstUsers.addItem(users[i]);
            }
            lstUsers.invalidate();
            lstUsers.getParent().validate();
            lstUsers.repaint();
            lstUsers.getParent().repaint();
        }
    }

    public String[] getUserList() {
        synchronized (lstUsers) {
            String[] list = new String[lstUsers.countItems()];
            for (int i=0; i < list.length; i++) {
                list[i] = lstUsers.getItem(i);
            }
            return list;
        }
    }

    public void userJoinedRoom(String user) {
        displayMessage(Translator.getMessage("joined", user));
        if (!listContains(user)) {
            lstUsers.addItem(user);
            lstUsers.invalidate();
            lstUsers.getParent().validate();
            lstUsers.repaint();
            lstUsers.getParent().repaint();
        }
    }

    private boolean listContains(String s) {
        int len = lstUsers.countItems();
        for (int i=0; i < len; i++) {
            if (s.equals(lstUsers.getItem(i))) {
                return true;
            }
        }
        return false;
    }

    public void userPartedRoom(String user, boolean signoff) {
        if (signoff) {
            displayMessage(Translator.getMessage("part2", user));
        } else {
            displayMessage(Translator.getMessage("part1", user));
        }
        int len = lstUsers.countItems();
        for (int i=0; i < len; i++) {
            if (user.equals(lstUsers.getItem(i))) {
                lstUsers.delItem(i);
                lstUsers.invalidate();
                lstUsers.repaint();
                break;
            }
        }
    }

    protected Component createTextWidget() {
        txtMessages = new TextArea();
        txtMessages.setBackground(Color.white);
        txtMessages.setText("");
        txtMessages.setEditable(false);
        return txtMessages;
    }

    protected Component createTitleArea() {
        Label l = new Label(_title);
        l.setBackground(bgColor);
        l.setForeground(Color.white);
        l.setFont(new Font("Dialog", Font.BOLD, 14));
        return l;
    }

    private void jbInit() throws Exception {
        setLayout(gridbag);

        Component lblTitle = createTitleArea();
        if (lblTitle != null) {
            gridbag.setConstraints(lblTitle,
                                   Constraints.create(0, 0, 2, 1, 1.0, 0,
                                                      GridBagConstraints.WEST,
                                                      GridBagConstraints.BOTH,
                                                      new Insets(0, 0, 0, 0), 0, 0));
            add(lblTitle);
        }
            
        Component c = createButtonPanel();
        _buttonPanel = new Panel();
        _buttonPanel.setBackground(bgColor);
        GridBagLayout gb2 = new GridBagLayout();
        _buttonPanel.setLayout(gb2);
        gb2.setConstraints(c, Constraints.create(0, 0, 1, 1, 1.0, 1.0,
                                                GridBagConstraints.EAST,
                                                GridBagConstraints.NONE,
                                                new Insets(0, 0, 0, 0), 0, 0));
        _buttonPanel.add(c);
        gridbag.setConstraints(_buttonPanel,
                               Constraints.create(0, 1, 2, 1, 1.0, 0,
                                                  GridBagConstraints.EAST,
                                                  GridBagConstraints.HORIZONTAL,
                                                  new Insets(0, 0, 0, 0), 0, 0));
        add(_buttonPanel);

        Component txtWidget = createTextWidget();
        gridbag.setConstraints(txtWidget,
                               Constraints.create(0, 2, 1, 1, 1.0, 1.0,
                                                  GridBagConstraints.CENTER,
                                                  GridBagConstraints.BOTH,
                                                  new Insets(0, 0, 0, 0), 0, 0));
        add(txtWidget);

        lstUsers = new List();
        gridbag.setConstraints(lstUsers,
                               Constraints.create(1, 2, 1, 1, 0.0, 1.0,
                                                  GridBagConstraints.CENTER,
                                                  GridBagConstraints.VERTICAL,
                                                  new Insets(0, 0, 0, 0), 0, 0));
        add(lstUsers);

        txtInput = new TextField();
        txtInput.setBackground(Color.white);
        gridbag.setConstraints(txtInput,
                               Constraints.create(0, 3, 2, 1, 1.0, 0.0,
                                                  GridBagConstraints.WEST,
                                                  GridBagConstraints.HORIZONTAL,
                                                  new Insets(0, 0, 0, 0), 0, 4));
        add(txtInput);
    }

    protected Component createButton(String img, String name) {
        if (img != null) {
            try {
                Image i = _factory.getImage(img);
                if (i != null && i.getHeight(this) > 0 && i.getWidth(this) > 0) {
                    return new ImageButton(i, name);
                }
            }
            catch (Exception e) {
                e.printStackTrace();
            }
        }
        Button b = new Button(name);