* Installs semantic highlighting on the editor
*/
private void installSemanticHighlighting() {
IStructuredModel model = getInternalModel();
if (fSemanticManager == null && model != null) {
fSemanticManager = new SemanticHighlightingManager();
fSemanticManager.install(getSourceViewer(), getPreferenceStore(), getSourceViewerConfiguration(), model.getContentTypeIdentifier());
}
}