/*
* MegaMek - Copyright (C) 2000,2001,2002,2003,2004 Ben Mazur (bmazur@sev.org)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
package megamek.client.ui.AWT;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Component;
import java.awt.List;
import java.awt.Panel;
import java.awt.TextArea;
import java.awt.TextField;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.LinkedList;
import megamek.client.Client;
import megamek.client.ui.Messages;
import megamek.common.event.GameEntityNewEvent;
import megamek.common.event.GameEntityRemoveEvent;
import megamek.common.event.GameListenerAdapter;
import megamek.common.event.GamePhaseChangeEvent;
import megamek.common.event.GamePlayerChangeEvent;
import megamek.common.event.GamePlayerChatEvent;
import megamek.common.event.GameTurnChangeEvent;
/**
* ChatterBox keeps track of a player list and a (chat) message buffer. Although
* it is not an AWT component, it keeps one that it will gladly supply.
*/
public class ChatterBox implements KeyListener {
private static final int MAX_HISTORY = 10;
public Client client;
public String[] chatBuffer;
// AWT components
public Panel chatPanel;
private TextArea chatArea;
private List playerList;
private TextField inputField;
private Button butDone;
private LinkedList<String> history;
private int historyBookmark = -1;
public ChatterBox(ClientGUI clientgui) {
this.client = clientgui.getClient();
client.game.addGameListener(new GameListenerAdapter() {
public void gamePlayerChat(GamePlayerChatEvent e) {
chatArea.append("\n" + e.getMessage()); //$NON-NLS-1$
PlayerListDialog.refreshPlayerList(playerList, client);
moveToEnd();
}
public void gamePlayerChange(GamePlayerChangeEvent e) {
PlayerListDialog.refreshPlayerList(playerList, client);
}
public void gameTurnChange(GameTurnChangeEvent e) {
PlayerListDialog.refreshPlayerList(playerList, client);
}
public void gamePhaseChange(GamePhaseChangeEvent e) {
PlayerListDialog.refreshPlayerList(playerList, client);
}
public void gameEntityNew(GameEntityNewEvent e) {
PlayerListDialog.refreshPlayerList(playerList, client);
}
public void gameEntityRemove(GameEntityRemoveEvent e) {
PlayerListDialog.refreshPlayerList(playerList, client);
}
});
history = new LinkedList<String>();
chatArea = new TextArea(
" \n", GUIPreferences.getInstance().getInt("AdvancedChatboxSize"), 40, TextArea.SCROLLBARS_VERTICAL_ONLY); //$NON-NLS-1$
chatArea.setEditable(false);
playerList = new List(GUIPreferences.getInstance().getInt(
"AdvancedChatboxSize"));
inputField = new TextField();
inputField.addKeyListener(this);
butDone = new Button(Messages.getString("ChatterBox.ImDone")); //$NON-NLS-1$
butDone.setEnabled(false);
chatPanel = new Panel(new BorderLayout());
Panel subPanel = new Panel(new BorderLayout());
subPanel.add(chatArea, BorderLayout.CENTER);
subPanel.add(playerList, BorderLayout.WEST);
subPanel.add(inputField, BorderLayout.SOUTH);
chatPanel.add(subPanel, BorderLayout.CENTER);
chatPanel.add(butDone, BorderLayout.EAST);
}
/**
* Tries to scroll down to the end of the box
*/
public void moveToEnd() {
if (chatArea.isShowing()) {
int last = chatArea.getText().length() - 1;
chatArea.select(last, last);
chatArea.setCaretPosition(last);
}
}
/**
* Returns the "box" component with all teh stuff
*/
public Component getComponent() {
return chatPanel;
}
/**
* Display a system message in the chat box.
*
* @param message the <code>String</code> message to be shown.
*/
public void systemMessage(String message) {
chatArea.append("\nMegaMek: " + message); //$NON-NLS-1$
moveToEnd();
}
/**
* Replace the "Done" button in the chat box.
*
* @param button the <code>Button</code> that should be used for "Done".
*/
public void setDoneButton(Button button) {
chatPanel.remove(butDone);
butDone = button;
chatPanel.add(butDone, BorderLayout.EAST);
}
//
// KeyListener
//
public void keyPressed(KeyEvent ev) {
if (ev.getKeyCode() == KeyEvent.VK_ENTER) {
history.addFirst(inputField.getText());
historyBookmark = -1;
if (!inputField.getText().startsWith(Client.CLIENT_COMMAND)) {
client.sendChat(inputField.getText());
} else {
systemMessage(client.runCommand(inputField.getText()));
}
inputField.setText(""); //$NON-NLS-1$
if (history.size() > MAX_HISTORY) {
history.removeLast();
}
} else if (ev.getKeyCode() == KeyEvent.VK_UP) {
historyBookmark++;
fetchHistory();
} else if (ev.getKeyCode() == KeyEvent.VK_DOWN) {
historyBookmark--;
fetchHistory();
}
moveToEnd();
}
public void keyReleased(KeyEvent ev) {
}
public void keyTyped(KeyEvent ev) {
}
private void fetchHistory() {
try {
inputField.setText(history.get(historyBookmark));
} catch (IndexOutOfBoundsException ioobe) {
inputField.setText(""); //$NON-NLS-1$
historyBookmark = -1;
}
}
}