1 files changed, 62 insertions, 0 deletions
diff --git a/admin/survey/export/libs/PHPPowerPoint/IComparable.php b/admin/survey/export/libs/PHPPowerPoint/IComparable.php
new file mode 100644
index 0000000..3870d55
--- /dev/null
+++ b/admin/survey/export/libs/PHPPowerPoint/IComparable.php
@@ -0,0 +1,62 @@
+<?php
+/**
+ * PHPPowerPoint
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category   PHPPowerPoint
+ * @package    PHPPowerPoint
+ * @copyright  Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version    0.1.0, 2009-04-27
+ */
+
+
+/**
+ * PHPPowerPoint_IComparable
+ *
+ * @category   PHPPowerPoint
+ * @package    PHPPowerPoint
+ * @copyright  Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
+ */
+interface PHPPowerPoint_IComparable
+{
+	/**
+	 * Get hash code
+	 *
+	 * @return string	Hash code
+	 */	
+	public function getHashCode();
+	
+	/**
+	 * Get hash index
+	 * 
+	 * Note that this index may vary during script execution! Only reliable moment is
+	 * while doing a write of a workbook and when changes are not allowed.
+	 *
+	 * @return string	Hash index
+	 */
+	public function getHashIndex();
+	
+	/**
+	 * Set hash index
+	 * 
+	 * Note that this index may vary during script execution! Only reliable moment is
+	 * while doing a write of a workbook and when changes are not allowed.
+	 *
+	 * @param string	$value	Hash index
+	 */
+	public function setHashIndex($value);
+}