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<?php
/**
* Elgg tagcloud
* Displays a tagcloud
*
* @package Elgg
* @subpackage Core
* @author Curverider Ltd
* @link http://elgg.org/
*
* @uses $vars['tagcloud'] An array of stdClass objects with two elements: 'tag' (the text of the tag) and 'total' (the number of elements with this tag)
*
*/
if (!empty($vars['subtype'])) {
$subtype = "&subtype=" . urlencode($vars['subtype']);
} else {
$subtype = "";
}
if (!empty($vars['object'])) {
$object = "&object=" . urlencode($vars['object']);
} else {
$object = "";
}
if (empty($vars['tagcloud']) && !empty($vars['value']))
$vars['tagcloud'] = $vars['value'];
if (!empty($vars['tagcloud']) && is_array($vars['tagcloud'])) {
$counter = 0;
$cloud = "";
$max = 0;
foreach($vars['tagcloud'] as $tag) {
if ($tag->total > $max) {
$max = $tag->total;
}
}
foreach($vars['tagcloud'] as $tag) {
if (!empty($cloud)) $cloud .= ", ";
$size = round((log($tag->total) / log($max)) * 100) + 30;
if ($size < 60) $size = 60;
$cloud .= "<a href=\"" . $vars['url'] . "search/?tag=". urlencode($tag->tag) . $object . $subtype . "\" style=\"font-size: {$size}%\" title=\"".addslashes($tag->tag)." ({$tag->total})\" style=\"text-decoration:none;\">" . htmlentities($tag->tag, ENT_QUOTES, 'UTF-8') . "</a>";
}
echo $cloud;
}
?>
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