23     protected $internal = NULL;  variable in helper_plugin_odt_cssimportnew
26         $this->internal = new cssimportnew();
35         return $this->internal;
43         return $this->internal->importFromString($contents);
47         $this->internal->setMedia($media);
51         return $this->internal->getMedia();
59         return $this->internal->importFromFile($filename);
66         return $this->internal->getRaw();
77         return $this->internal->getPropertyForElement ($name, $element);
87         $this->internal->getPropertiesForElement ($dest, $element, $units->getInternal());
94         return $this->internal->rulesToString ();
103         return $this->internal->replaceURLPrefix ($URL, $replacement);
110         $this->internal->adjustLengthValues ($callback);