import org.eclipse.gmf.runtime.diagram.core.providers.IViewProvider; //导入依赖的package包/类
public static @Nullable Node createGMFNode(@NonNull EObject modelObj, @NonNull Diagram gmfDiagram, @NonNull String diagramPluginId, @Nullable IViewProvider viewProvider) {

		Node gmfNode = null;
		if (viewProvider == null) {
			String gmfTypeHint = GMFUtils.getGMFRegistryType(modelObj, null);
			// works only if modelObj has the right eStorage adapters attached, or it returns a generic type
			gmfNode = ViewService.createNode(gmfDiagram, modelObj, gmfTypeHint, new PreferencesHint(diagramPluginId));
		}
		else {
			gmfNode = viewProvider.createNode(new EObjectAdapter(modelObj), gmfDiagram, null, -1, true, new PreferencesHint(diagramPluginId));
		}

		return gmfNode;
	}
 

import org.eclipse.gmf.runtime.diagram.core.providers.IViewProvider; //导入依赖的package包/类
/**
 * Create shortcuts to external models into the nested Instance MID.
 *
 * @param models
 *            The external models.
 * @throws MMINTException
 *             If this is not an operator instance, or if this operator was created without a nested Instance MID.
 * @generated NOT
 */
protected void createNestedInstanceMIDModelShortcuts(@NonNull List<Model> models) throws MMINTException {

    MMINTException.mustBeInstance(this);

    String nestedMIDPath = this.getNestedMIDPath();
    if (nestedMIDPath == null) {
        throw new MMINTException("The nested MID is not serialized");
    }
    if (models.isEmpty()) {
        return;
    }

    MID nestedMID = this.getNestedInstanceMID();
    Diagram nestedMIDDiagramRoot = this.getNestedInstanceMIDDiagramRoot();
    Model midModelType = MIDTypeRegistry.getMIDModelType();
    String midDiagramPluginId = MIDTypeRegistry.getTypeBundle(MIDTypeRegistry.getMIDDiagramType().getUri()).getSymbolicName();
    IViewProvider midViewProvider = MIDTypeRegistry.getCachedMIDViewProvider();
    // models first, then model rels
    for (Model model : models) {
        if (model instanceof BinaryModelRel) {
            continue;
        }
        GMFUtils.createGMFNodeShortcut(
            model,
            nestedMIDDiagramRoot,
            midDiagramPluginId,
            midModelType.getName(),
            midViewProvider);
        if (model instanceof Model) {
            nestedMID.getExtendibleTable().put(model.getUri(), model);
        }
    }
    for (Model binaryModelRel : models) {
        if (!(binaryModelRel instanceof BinaryModelRel)) {
            continue;
        }
        // gmf shortcuts can't be created for links, fake the shortcut as an nary rel
        String gmfTypeHint = GMFUtils.getGMFRegistryType(RelationshipFactory.eINSTANCE.createModelRel(), midDiagramPluginId + ".TypeContext");
        Node gmfNode = (midViewProvider == null) ?
            ViewService.createNode(nestedMIDDiagramRoot, binaryModelRel, gmfTypeHint, new PreferencesHint(midDiagramPluginId)) :
            midViewProvider.createNode(new EObjectAdapter(binaryModelRel), nestedMIDDiagramRoot, gmfTypeHint, -1, true, new PreferencesHint(midDiagramPluginId));
        GMFUtils.addGMFShortcut(gmfNode, midModelType.getName());
        //TODO MMINT[NESTED] Can't create model rel endpoints, but maybe can use some simple connectors
    }
}
 

import org.eclipse.gmf.runtime.diagram.core.providers.IViewProvider; //导入依赖的package包/类
public static @Nullable Node createGMFNodeShortcut(@NonNull EObject modelObj, @NonNull Diagram gmfDiagram, @NonNull String diagramPluginId, @NonNull String shortcutId, @Nullable IViewProvider viewProvider) {

		Node gmfNode = GMFUtils.createGMFNode(modelObj, gmfDiagram, diagramPluginId, viewProvider);
		GMFUtils.addGMFShortcut(gmfNode, shortcutId);

		return gmfNode;
	}
 

import org.eclipse.gmf.runtime.diagram.core.providers.IViewProvider; //导入依赖的package包/类
public static @Nullable IViewProvider getCachedMIDViewProvider() {

		return MMINT.cachedMIDViewProvider;
	}
 

import org.eclipse.gmf.runtime.diagram.core.providers.IViewProvider; //导入依赖的package包/类
public static void setCachedMIDViewProvider(@Nullable IViewProvider midViewProvider) {

		MMINT.cachedMIDViewProvider = midViewProvider;
	}