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Created: Fri, Oct 3, 6:15 AM

ColorSet.php
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	<?php
	/* Libchart - PHP chart library
	* Copyright (C) 2005-2007 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
	*
	* 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 3 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, see <http://www.gnu.org/licenses/>.
	*
	*/

	defined('FULL_PATH') or die('restricted access!');

	/**
	* A set of colors, used for drawing series of data.
	*
	* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
	* Created on 26 july 2007
	*/
	class LibchartColorSet {
	public $colorList;
	public $shadowColorList;

	/**
	* ColorSet constructor.
	*
	* @param $shadowFactor Shadow factor
	* @param $colorArray Colors as an array
	*/
	public function __construct($colorList, $shadowFactor) {
	$this->colorList = $colorList;
	$this->shadowColorList = array();

	// Generate the shadow color set
	foreach ($colorList as $color) {
	$shadowColor = $color->getShadowColor($shadowFactor);

	array_push($this->shadowColorList, $shadowColor);
	}
	}

	/**
	* Reset the iterator over the collections of colors.
	*/
	public function reset() {
	reset($this->colorList);
	reset($this->shadowColorList);
	}

	/**
	* Iterate over the colors and shadow colors. When we go after the last one, loop over (TODO).
	*
	*/
	public function next() {
	next($this->colorList);
	next($this->shadowColorList);
	}

	/**
	* Returns the current color.
	*
	* @return Current color
	*/
	public function currentColor() {
	return current($this->colorList);
	}

	/**
	* Returns the current shadow color.
	*
	* @return Current shadow color
	*/
	public function currentShadowColor() {
	return current($this->shadowColorList);
	}
	}

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