<?php
/*
     Decoration.php, obsolete
     Copyright (C) 2003-2004 Arend van Beelen, Auton Rijnsburg

     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.

     You should have received a copy of the GNU General Public License along
     with this program; if not, write to the Free Software Foundation, Inc.,
     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

     For any questions, comments or whatever, you may mail me at: hide@address.com
*/

/**
 * @brief Provides access to information about decorations and themes.
 *
 * This class provides information about decorations and themes.
 *
 * You can use the function theme() to get the currently used theme and the
 * function availableThemes() to get a list of all available themes and their
 * full names.
 *
 * Use the function useDecorations() to determine whether the user wants to
 * see extra decorations, like page icons.
 *
 * @sa theme(), availableThemes(), useDecorations()
 * @sa PageIcon
 */
class Decoration
{
	/**
	 * Constructor.
	 */
	private function __construct()
	{
		$username = (class_exists('Login') ? Login::username() : '');

		$this->config = new Config('', $username);
		$this->useDecorations = ($this->config->variable('useDecorations', 'true') == 'true');
	}

	/**
	 * Returns the currently used theme as the basename of the CSS file used
	 * for the theme.
	 */
	public static function theme()
	{
		$instance = self::instance();

		return $instance->config->variable('theme', 'default');
	}

	/**
	 * Returns an array containing @p CSS => @p Name pairs. Where @p CSS is
	 * the basename of the CSS file used for a theme, and @p Name is the
	 * name of the theme.
	 */
	public static function availableThemes()
	{
		$instance = self::instance();

		if(isset($instance->themes) == false)
		{
			$lines = file('resources/base/themes/themes');
			foreach($lines as $line)
			{
				list($css, $name) = explode(':', trim($line));
				$instance->themes[$css] = $name;
			}
		}
		return $instance->themes;
	}

	/**
	 * Returns whether the user wants to see extra decorations.
	 *
	 * @return @p true if decorations are enabled, @p false otherwise.
	 */
	public static function useDecorations()
	{
		$instance = self::instance();

		return $instance->useDecorations;
	}

	private static function instance()
	{
		if(self::$instance == null)
		{
			self::$instance = new Decoration();
		}

		return self::$instance;
	}

	private static $instance = null;
	private $config;
	private $useDecorations;
	private $themes;
}

?>