Initial commit.

library/Zend/Pdf/Color.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Pdf
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Color.php 24593 2012-01-05 20:35:02Z matthew $
+ */
+
+
+/**
+ * PDF provides a powerfull facilities for specifying the colors of graphics objects.
+ * This class encapsulates color behaviour.
+ *
+ * Some colors interact with PDF document (create additional objects in a PDF),
+ * others don't do it. That is defined in a subclasses.
+ *
+ * @package    Zend_Pdf
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Pdf_Color
+{
+    /**
+     * Instructions, which can be directly inserted into content stream
+     * to switch color.
+     * Color set instructions differ for stroking and nonstroking operations.
+     *
+     * @param boolean $stroking
+     * @return string
+     */
+    abstract public function instructions($stroking);
+
+    /**
+     * Get color components (color space dependent)
+     *
+     * @return array
+     */
+    abstract public function getComponents();
+}
+