CTabItem fxmlContent = new CTabItem(folder, SWT.NONE);
fxmlContent.setText("FXML-Source");
fxmlContent.setImage(JFaceResources.getImage(IMAGE_FXML_CONTENT));
final AnnotationModel model = new AnnotationModel();
VerticalRuler verticalRuler = new VerticalRuler(VERTICAL_RULER_WIDTH, new AnnotationAccess());
int styles = SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION;
SourceViewer sourceViewer = new SourceViewer(folder, verticalRuler, styles);
sourceViewer.configure(new XMLConfiguration(new ColorManager()));
sourceViewer.setEditable(false);
sourceViewer.getTextWidget().setFont(JFaceResources.getTextFont());