Second part of refactoring; should be runnable again, yet not thoroughly tested

dav/sabre-vobject/lib/Sabre/VObject/Component/VJournal.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * VJournal component
+ *
+ * This component contains some additional functionality specific for VJOURNALs.
+ * 
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class VJournal extends VObject\Component {
+
+    /**
+     * Returns true or false depending on if the event falls in the specified 
+     * time-range. This is used for filtering purposes. 
+     *
+     * The rules used to determine if an event falls within the specified 
+     * time-range is based on the CalDAV specification.
+     *
+     * @param DateTime $start
+     * @param DateTime $end 
+     * @return bool 
+     */
+    public function isInTimeRange(\DateTime $start, \DateTime $end) {
+
+        $dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
+        if ($dtstart) {
+            $effectiveEnd = clone $dtstart;
+            if ($this->DTSTART->getDateType() == VObject\Property\DateTime::DATE) {
+                $effectiveEnd->modify('+1 day');
+            }
+
+            return ($start <= $effectiveEnd && $end > $dtstart);
+
+        }
+        return false;
+
+
+    }
+
+}