--- /dev/null
+<?php
+/**
+ * A general captcha
+ *
+ * @author Roland Haeder <webmaster@ship-simu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.ship-simu.org
+ *
+ * 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/>.
+ */
+class BaseCaptcha extends BaseHelper {
+ /**
+ * A helper instance for the form
+ */
+ private $helperInstance = null;
+
+ /**
+ * Instance of an RNG
+ */
+ private $rngInstance = null;
+
+ /**
+ * Protected constructor
+ *
+ * @param $className Name of the class
+ * @return void
+ */
+ protected function __construct ($className) {
+ // Call parent constructor
+ parent::__construct($className);
+ }
+
+ /**
+ * Initializes the random number generator (RNG)
+ *
+ * @param $extraInstance An extra instance, just for better hash data
+ * @return void
+ */
+ protected final function initializeRandomNumberGenerator (FrameworkInterface $extraInstance = null) {
+ // Get an RNG from factory
+ $this->rngInstance = ObjectFactory::createObjectByConfiguredName('rng_class', array($extraInstance));
+ }
+
+ /**
+ * Getter for RNG instance
+ *
+ * @return $rngInstance An instance of a random number generator (RNG)
+ */
+ public final function getRngInstance () {
+ return $this->rngInstance;
+ }
+
+ /**
+ * Setter for helper instance
+ *
+ * @param $helperInstance An instance of a helper class
+ * @return void
+ */
+ protected final function setHelperInstance (HelpableTemplate $helperInstance) {
+ $this->helperInstance = $helperInstance;
+ }
+
+ /**
+ * Getter for helper instance
+ *
+ * @return $helperInstance An instance of a helper class
+ */
+ public final function getHelperInstance () {
+ return $this->helperInstance;
+ }
+}
+
+// [EOF]
+?>