/**
* Create a transformer implementation based on a file name
*
* @param string $filename
*
* @return \Puml\Transformer\Base
* @since 0.1
* @throws \Exception
* @todo make this more dynamic, perhaps an observer pattern where the
* transformers are registered at this factory.
*/
public static function create($filename)
{
$pathInfo = pathinfo($filename);
$pathInfo['extension'];
switch ($pathInfo['extension']) {
case 'png':
case 'pdf':
case 'dot':
$transformer = new GraphViz();
break;
default:
throw new \Exception('No support found for ' . $pathInfo['extension'] . ' extension');
}
$transformer->setTransformation($pathInfo['extension'])->setFilename($filename);
return $transformer;
}
protected function getResultText(SMWQueryResult $res, $outputmode)
{
if (!is_callable('GraphViz::graphvizParserHook')) {
wfWarn('The SRF Graph printer needs the GraphViz extension to be installed.');
return '';
}
$this->isHTML = true;
$graphInput = "digraph {$this->m_graphName} {";
if ($this->m_graphSize != '') {
$graphInput .= "size=\"{$this->m_graphSize}\";";
}
if ($this->m_nodeShape) {
$graphInput .= "node [shape={$this->m_nodeShape}];";
}
$graphInput .= "rankdir={$this->m_rankdir};";
while ($row = $res->getNext()) {
$graphInput .= $this->getGVForItem($row, $outputmode);
}
$graphInput .= "}";
// Calls graphvizParserHook function from MediaWiki GraphViz extension
$result = GraphViz::graphvizParserHook($graphInput, "", $GLOBALS['wgParser']);
if ($this->m_graphLegend && $this->m_graphColor) {
$arrayCount = 0;
$arraySize = count($this->m_graphColors);
$result .= "<P>";
foreach ($this->m_labelArray as $m_label) {
if ($arrayCount >= $arraySize) {
$arrayCount = 0;
}
$color = $this->m_graphColors[$arrayCount];
$result .= "<font color={$color}>{$color}: {$m_label} </font><br />";
$arrayCount += 1;
}
$result .= "</P>";
}
return $result;
}
/**
* Create a graph done by graphviz
* @param _wikielement graph
*/
private function _treatGraphviz($code)
{
$code->data = preg_replace('/\\[graphviz(.*?)\\]/', "", $code->data);
$code->data = preg_replace('/\\[\\/graphviz(.*?)\\]/', "", $code->data);
//graphviz
_classInclude('wikirender|GraphViz');
$type = $code->other;
$code = $code->data;
$converter = new GraphViz($code, $type);
$img = $converter->render();
$map = $converter->getMap();
$mapname = $converter->getMapName();
//var_dump($converter);
$code = $map;
$code .= "\n" . '<img usemap="#' . $mapname . '" src="' . _url("wiki|file|getGraphViz", array("graph" => $img)) . "\" />\n";
return $code;
}