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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2014 Piwigo Team http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | 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 |
// | |
// | 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, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+
/**
* @package functions\picture
*/
/**
* Returns slideshow default params.
* - period
* - repeat
* - play
*
* @return array
*/
function get_default_slideshow_params()
{
global $conf;
return array(
'period' => $conf['slideshow_period'],
'repeat' => $conf['slideshow_repeat'],
'play' => true,
);
}
/**
* Checks and corrects slideshow params
*
* @param array $params
* @return array
*/
function correct_slideshow_params($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;
}
/**
* Decodes slideshow string params into array
*
* @param string $encode_params
* @return array
*/
function decode_slideshow_params($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);
}
/**
* Encodes slideshow array params into a string
*
* @param array $decode_params
* @return string
*/
function encode_slideshow_params($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;
}
?>
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