'Title to display before tags',
'display_max' => 'Maximum number of tags to display',
'steps' => 'Odd number of scaling steps to use',
'size_min' => 'Minimum font size to use',
'size_max' => 'Maximum font size to use',
'size_unit' => 'Css font size unit',
'skip_single' => 'Do not display tags containing only one post',
'show_numposts' => 'Show number of posts next to each tag'
);
var $_frontend;
// options
var $title = "Tag cloud";
var $display_max = 30;
var $steps = 5;
var $size_min = 0.5;
var $size_max = 1.5;
var $size_unit = 'em';
var $skip_single = false;
var $show_numposts = false;
function TagCloud(&$frontend, $args, $dummy_run=false) {
$this->LightPressPlugin($frontend, $args, $dummy_run);
if (!$dummy_run && ($frontend->view_type != 'html' || $frontend->context['hierarchy'][0] != 'tagcloud'))
$this->active = false;
}
function run($hook, &$post) {
if (!$this->active)
return ($this->hide());
$cache =& $this->_frontend->cache;
if ($cache && $cache->active) {
// try to fetch the cached snippet
$result = $cache->getCache('_plugin_tagcloud','');
if ($result) {
$this->_frontend->tpl->setVar('PLUGIN_TAGCLOUD', $result);
return;
}
}
$tags = $this->_frontend->getTags();
$limit = (int)$this->display_max;
if ($limit > 0 && count($tags) > $limit)
$tags = array_slice($tags, 0, $limit);
ksort($tags);
$min = 9999;
$max = 0;
foreach ($tags as $tag_name=>$tag) {
$numposts = (int)$tag['numposts'];
if ($this->skip_single && $numposts <= 1) {
unset($tags[$tag_name]);
continue;
}
$tags[$tag_name]['numposts'] = $numposts;
if ($numposts > $max)
$max = $numposts;
else if ($numposts < $min)
$min = $numposts;
}
$dist = ($max - $min) / $this->steps;
$step = ($this->size_max - $this->size_min) / $this->steps;
if ($this->title)
$buffer = "{$this->title}
\n";
else
$buffer = '';
$buffer .= "\n";
//echo "max $max min $min dist $dist step $step
";
$url = $this->_frontend->options['url'];
if ($this->show_numposts) {
foreach ($tags as $tag_name=>$tag) {
$buffer .= sprintf(
'- %s (%s)
',
$this->size_min + floor($tag['numposts'] / $dist) * $step, $this->size_unit, $url, $this->_frontend->getTagPermalink($this->_frontend->getTagEncoded($tag['name'])), $tag['name'], $tag['numposts']);
$buffer .= "\n";
}
} else {
foreach ($tags as $tag_name=>$tag) {
$buffer .= sprintf(
'- %s
',
$url, $this->_frontend->getTagPermalink($this->_frontend->getTagEncoded($tag['name'])), $this->size_min + floor($tag['numposts'] / $dist) * $step, $this->size_unit, $tag['name']);
$buffer .= "\n";
}
}
$buffer .= '
';
$this->_frontend->tpl->setVar('PLUGIN_TAGCLOUD', $buffer);
if ($cache && $cache->active)
$cache->setCache($this->_frontend->tpl->_vars['PLUGIN_TAGCLOUD'], '_plugin_tagcloud','');
}
function hide() {
$this->_frontend->tpl->setVar('PLUGIN_TAGCLOUD', '');
}
}
?>