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60 jpm 1 
<?php
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/*
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 * This work is hereby released into the Public Domain.
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 * To view a copy of the public domain dedication,
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 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
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 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
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 *
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 */
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require_once dirname(__FILE__)."/../Graph.class.php";
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/**
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 * Create your gradients
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 *
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 * @package Artichow
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 */
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abstract class awGradient {
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	/**
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	 * From color
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	 *
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	 * @var Color
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	 */
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	public $from;
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	/**
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	 * To color
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	 *
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	 * @var Color
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	 */
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	public $to;
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	/**
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	 * Build the gradient
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	 *
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	 * @param awColor $from From color
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	 * @param awColor $to To color
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	 */
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	public function __construct(awColor $from, awColor $to) {
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		$this->from = $from;
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		$this->to = $to;
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	}
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}
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registerClass('Gradient', TRUE);
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/**
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 * Create a linear gradient
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 *
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 * @package Artichow
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 */
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class awLinearGradient extends awGradient {
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	/**
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	 * Gradient angle
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	 *
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	 * @var int
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	 */
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	public $angle;
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	/**
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	 * Build the linear gradient
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	 *
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	 * @param awColor $from From color
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	 * @param awColor $to To color
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	 * @param int $angle Gradient angle
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	 */
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	public function __construct($from, $to, $angle) {
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		parent::__construct(
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			$from, $to
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		);
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		$this->angle = (int)$angle;
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	}
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}
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registerClass('LinearGradient');
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/**
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 * Create a bilinear gradient
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 *
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 * @package Artichow
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 */
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class awBilinearGradient extends awLinearGradient {
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	/**
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	 * Gradient center
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	 *
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	 * @var float Center between 0 and 1
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	 */
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	public $center;
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	/**
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	 * Build the bilinear gradient
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	 *
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	 * @param awColor $from From color
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	 * @param awColor $to To color
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	 * @param int $angle Gradient angle
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	 * @param int $center Gradient center
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	 */
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	public function __construct($from, $to, $angle, $center = 0.5) {
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		parent::__construct(
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			$from, $to, $angle
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		);
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		$this->center = (float)$center;
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	}
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}
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registerClass('BilinearGradient');
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/**
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 * Create a radial gradient
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 *
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 * @package Artichow
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 */
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class awRadialGradient extends awGradient {
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}
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registerClass('RadialGradient');
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?>