private void setRuler(RulerProvider provider, int orientation) {
Object ruler = null;
if (isRulerVisible && provider != null)
// provider.getRuler() might return null (at least the API does not
// prevent that)
ruler = provider.getRuler();
if (ruler == null) {
// Ruler is not visible or is not present
setRulerContainer(null, orientation);
// Layout right-away to prevent an empty control from showing
layout(true);
return;
}
GraphicalViewer container = getRulerContainer(orientation);
if (container == null) {
container = createRulerContainer(orientation);
setRulerContainer(container, orientation);
}
if (container.getContents() != ruler) {
container.setContents(ruler);
needToLayout = true;
Display.getCurrent().asyncExec(runnable);
}
}
private DisplayModel createDisplayModel() throws Exception {
displayModel = new DisplayModel(path);
XMLUtil.fillDisplayModelFromInputStream(ResourceUtil.pathToInputStream(path), displayModel);
if (macrosInput != null) {
macrosInput = macrosInput.getCopy();
macrosInput.getMacrosMap().putAll(displayModel.getMacrosInput().getMacrosMap());
displayModel.setPropertyValue(AbstractContainerModel.PROP_MACROS, macrosInput);
}
viewer.setContents(displayModel);
displayModel.setViewer(viewer);
displayModel.setOpiRuntime(this);
return displayModel;
}
protected void initializeGraphicalViewer() {
GraphicalViewer viewer = getGraphicalViewer();
IFile file = ((IFileEditorInput) getEditorInput()).getFile();
RootModel root = null;
if (file.exists()) {
try {
root = DiagramSerializer.deserialize(file.getContents());
validateModel(root);
} catch (Exception ex) {
UMLPlugin.logException(ex);
}
}
if (root == null) {
root = createInitializeModel();
}
viewer.setContents(root);
addDndSupport(viewer, getDiagramType());
applyPreferences();
}