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-rw-r--r--include/functions_picture.inc.php108
1 files changed, 107 insertions, 1 deletions
diff --git a/include/functions_picture.inc.php b/include/functions_picture.inc.php
index d11574b57..13a09834d 100644
--- a/include/functions_picture.inc.php
+++ b/include/functions_picture.inc.php
@@ -1,7 +1,7 @@
<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery |
-// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
+// | Copyright (C) 2003-2008 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | file : $Id$
// | last update : $Date$
@@ -223,4 +223,110 @@ function get_download_url($what_part, $element_info)
return trigger_event( 'get_download_url', $url, $element_info);
}
+/*
+ * get slideshow default params into array
+ *
+ * @param void
+ *
+ * @return slideshow default values into array
+ */
+function get_default_slideshow_params()
+{
+ global $conf;
+
+ return array(
+ 'period' => $conf['slideshow_period'],
+ 'repeat' => $conf['slideshow_repeat'],
+ 'play' => true,
+ );
+}
+
+/*
+ * check and correct slideshow params from array
+ *
+ * @param array of params
+ *
+ * @return slideshow corrected values into array
+ */
+function correct_slideshow_params($params = array())
+{
+ global $conf;
+
+ if ($params['period'] < $conf['slideshow_period_min'])
+ {
+ $params['period'] = $conf['slideshow_period_min'];
+ }
+ else if ($params['period'] > $conf['slideshow_period_max'])
+ {
+ $params['period'] = $conf['slideshow_period_max'];
+ }
+
+ return $params;
+}
+
+/*
+ * Decode slideshow string params into array
+ *
+ * @param string params like ""
+ *
+ * @return slideshow values into array
+ */
+function decode_slideshow_params($encode_params = null)
+{
+ global $conf;
+
+ $result = get_default_slideshow_params();
+
+ if (is_numeric($encode_params))
+ {
+ $result['period'] = $encode_params;
+ }
+ else
+ {
+ $matches = array();
+ if (preg_match_all('/([a-z]+)-(\d+)/', $encode_params, $matches))
+ {
+ $matchcount = count($matches[1]);
+ for ($i = 0; $i < $matchcount; $i++)
+ {
+ $result[$matches[1][$i]] = $matches[2][$i];
+ }
+ }
+
+ if (preg_match_all('/([a-z]+)-(true|false)/', $encode_params, $matches))
+ {
+ $matchcount = count($matches[1]);
+ for ($i = 0; $i < $matchcount; $i++)
+ {
+ $result[$matches[1][$i]] = get_boolean($matches[2][$i]);
+ }
+ }
+ }
+
+ return correct_slideshow_params($result);
+}
+
+/*
+ * Encode slideshow array params into array
+ *
+ * @param array params
+ *
+ * @return slideshow values into string
+ */
+function encode_slideshow_params($decode_params = array())
+{
+ global $conf;
+
+ $params = array_diff_assoc(correct_slideshow_params($decode_params), get_default_slideshow_params());
+ $result = '';
+
+ foreach ($params as $name => $value)
+ {
+ // boolean_to_string return $value, if it's not a bool
+ $result .= '+'.$name.'-'.boolean_to_string($value);
+ }
+
+ return $result;
+}
+
?>