initial import

lib/classes/graphik/Pattern.class.php

@@ -0,0 +1,97 @@
+<?php
+/*
+ * This work is hereby released into the Public Domain.
+ * To view a copy of the public domain dedication,
+ * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
+ * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
+ *
+ */
+
+require_once dirname(__FILE__)."/Graph.class.php";
+
+/**
+ * All patterns must derivate from this class
+ *
+ * @package Artichow
+ */
+abstract class awPattern {
+
+	/**
+	 * Pattern arguments
+	 *
+	 * @var array
+	 */
+	protected $args = array();
+	
+	/**
+	 * Load a pattern
+	 *
+	 * @param string $pattern Pattern name
+	 * @return Component
+	 */
+	public static function get($pattern) {
+	
+		$file = ARTICHOW_PATTERN.DIRECTORY_SEPARATOR.$pattern.'.php';
+	
+		if(is_file($file)) {
+		
+			require_once $file;
+			
+			$class = $pattern.'Pattern';
+			
+			if(class_exists($class)) {
+				return new $class;
+			} else {
+				awImage::drawError("Class Pattern: Class '".$class."' does not exist.");
+			}
+		
+		} else {
+			awImage::drawError("Class Pattern: Pattern '".$pattern."' does not exist.");
+		}
+	
+	}
+	
+	/**
+	 * Change pattern argument
+	 *
+	 * @param string $name Argument name
+	 * @param mixed $value Argument value
+	 */
+	public function setArg($name, $value) {
+		if(is_string($name)) {
+			$this->args[$name] = $value;
+		}
+	}
+	
+	/**
+	 * Get an argument
+	 *
+	 * @param string $name
+	 * @param mixed $default Default value if the argument does not exist (default to NULL)
+	 * @return mixed Argument value
+	 */
+	protected function getArg($name, $default = NULL) {
+		if(array_key_exists($name, $this->args)) {
+			return $this->args[$name];
+		} else {
+			return $default;
+		}
+	}
+	
+	/**
+	 * Change several arguments
+	 *
+	 * @param array $args New arguments
+	 */
+	public function setArgs($args) {
+		if(is_array($args)) {
+			foreach($args as $name => $value) {
+				$this->setArg($name, $value);
+			}
+		}
+	}
+
+}
+
+registerClass('Pattern', TRUE);
+?>