/**
* Gets an array containing the file formats that are supported by the renderer.
*
* @return array An array containing the supported file formats.
*/
public function getSupportedFileFormats()
{
// build formats only once
if (self::$supported_formats == null) {
self::$supported_formats = explode(",", self::SUPPORTED_FORMATS);
}
return self::$supported_formats;
}
/**
* Loads the available preview renderers. That is built in renderers and plugins.
*
* @return array The available renderers.
*/
private static function loadAvailableRenderers()
{
// already loaded?
if (self::$renderers != null) {
return;
}
$r = array();
// get registered and active plugins
global $ilPluginAdmin;
$pl_names = $ilPluginAdmin->getActivePluginsForSlot(IL_COMP_SERVICE, "Preview", "pvre");
foreach ($pl_names as $pl) {
$plugin = ilPluginAdmin::getPluginObject(IL_COMP_SERVICE, "Preview", "pvre", $pl);
$r[] = $plugin->getRendererClassInstance();
}
// add default renderers
include_once "./Services/Preview/classes/class.ilImageMagickRenderer.php";
$r[] = new ilImageMagickRenderer();
include_once "./Services/Preview/classes/class.ilGhostscriptRenderer.php";
if (ilGhostscriptRenderer::isGhostscriptInstalled()) {
$r[] = new ilGhostscriptRenderer();
}
self::$renderers = $r;
}