/*
 * BAGSGui.bsh
 *
 * Copyright 2005 M. Aaron Wadley
 *
 * This file is part of BAGS (Beany Adventure Game System).
 * BAGS (Beany Adventure Game System) 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.
 *
 * BAGS (Beany Adventure Game System) 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with BAGS (Beany Adventure Game System); if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/**
 * Graphical user interface
 */ 
Gui(gameTitle) {
	inputPrompt=">";

	defaultFontSize=12;
	fontSize=12;

	outputBackground=Color.black;
	outputForeground=Color.white;

	inputBackground=outputBackground;
	inputForeground=outputForeground;

	JPanel mainPanel = new JPanel();
	mainPanel.setLayout (new BorderLayout());

	BAGSBoxCaret caret = new BAGSBoxCaret();
	caret.setBlinkRate(300);

	JTextField commandInput  = new JTextField(20);
	commandInput.setCaret(caret);

	JTextPane displayOutput = new JTextPane();
	displayOutput.setPreferredSize(new Dimension(640, 480));
	displayOutput.setEditable(false);
	displayOutput.addFocusListener(this);

	JPanel statusPanel = new JPanel();
	statusPanel.setPreferredSize(new Dimension(640, 20));

	JScrollPane paneScrollPane = new JScrollPane(displayOutput);
	paneScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
	paneScrollPane.setPreferredSize(new Dimension(640, 480));
	paneScrollPane.setMinimumSize(new Dimension(10, 10));

	JLabel prompt = new JLabel(inputPrompt);

	JPanel inputJPanel = new JPanel();
	inputJPanel.setLayout(new BorderLayout());

	// Add components to our layout / panels
	inputJPanel.add("West", prompt);
	inputJPanel.add("Center", commandInput);
	mainPanel.add("North", statusPanel);
	mainPanel.add("Center", new JScrollPane(displayOutput, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER));
	mainPanel.add("South", inputJPanel);

	/**
	 * Update the colors
	 */
	updateColors () {
		prompt.background = inputBackground;
		prompt.foreground = inputForeground;
		commandInput.background = inputBackground;
		commandInput.foreground = inputForeground;
		commandInput.setCaretColor(inputForeground);
		inputJPanel.foreground = inputForeground;
		inputJPanel.background = inputBackground;
		displayOutput.background = outputBackground;
		displayOutput.foreground = outputForeground;
		mainPanel.foreground = outputForeground;
		mainPanel.background = outputBackground;
		statusPanel.foreground = outputForeground;
		statusPanel.background = outputBackground;
	}

	updateBackground(newBg) {
		outputBackground = newBg;
		inputBackground = newBg;
		updateColors();
	}

	updateForeground(newFg) {
		outputForeground = newFg;
		inputForeground = newFg;
		updateColors();
	}

	/**
	 * Update the colors with new colors
	 */
	updateColors(newFg, newBg) {
		outputForeground = newFg;
		outputBackground = newBg;
		inputForeground = newFg;
		inputBackground = newBg;
		updateColors();
	}

	/**
	 * Focus handler
	 */
	focusGained (e) {
		commandInput.requestFocusInWindow();
	}

	/**
	 * Focus handler
	 */
	focusLost(e) {
		// don't care!
	}

	/** 
	 * Add an action listener to the command text field
	 */
	addCommandActionListener(commandListener)  {
		commandInput.addActionListener(commandListener);
	}

	addKeyListener(keyListener) {
		commandInput.addKeyListener(keyListener);
	}

	removeKeyListener(keyListener) {
		commandInput.removeKeyListener(keyListener);
	}

	// Set up options like font and color
	updateColors(Color.white, Color.black);

	theFrame = frame(mainPanel);
	theFrame.setTitle(gameTitle);


	return this;
}