Java 类org.eclipse.emf.edit.provider.ItemProviderAdapter 实例源码

@Override
public boolean hasChildren(Object object)
{
    if (object != null && object instanceof TreeNodeWrapper)
    {
        TreeNodeWrapper treeNodeWrapper = (TreeNodeWrapper) object;
        if (treeNodeWrapper.getObject() != null && treeNodeWrapper.getObject() instanceof BTSConfig)
        {
            Object realItem = ((TreeNodeWrapper) object).getObject();
            IItemLabelProvider realItemItemprovider = getRealItemItemProvider(treeNodeWrapper, realItem);
            return ((ItemProviderAdapter) realItemItemprovider).hasChildren(realItem);
        }

    }
    return super.hasChildren(object);
}

/**
 * Returns the type name for the given object.
 * The type name is retrieved from the edit plug-in, 
 * which provides type names for all types (classes).
 * 
 * @param eObject the object the type name to get for
 * @return the type name for the given object, null if an error occurred
 */
public static String getTypeName(EObject eObject) {
    // Get the key name of this object for the translated string
    // by using the objects interface name.
    String className = eObject.eClass().getName();
    String key = "_UI_" + className + "_type";

    String result = null;

    try {
        ItemProviderAdapter itemProvider = getItemProvider(eObject);
        result = itemProvider.getString(key);
    }
    catch (MissingResourceException e) {
        System.err.println("Error: Missing Resource for " + className
                + "! Did you forget to register the adapter factory?");
    }

    return result;
}

private StringBuffer appendType(final StringBuffer text, final Type type) {
    if (type == null) {
        return text;
    }
    return ((ILabelAppender) adapterFactory.adapt(type, ItemProviderAdapter.class)).appendLabel(
            text.append(" (of type "), type).append(')');
}

private StringBuffer appendType(final StringBuffer text, final Type type) {
    if (type == null) {
        return text;
    }
    return ((ILabelAppender) adapterFactory.adapt(type, ItemProviderAdapter.class)).appendLabel(
            text.append(" (of type "), type).append(')');
}

/**
 * Returns the new child descriptor for creating a new child of the given feature for the given object.
 * 
 * @param eObject the object a child should created for
 * @param childFeature the feature of the children
 * @return the {@link CommandParameter} (new child descriptor)
 */
public static CommandParameter getNewChildDescriptor(EObject eObject, EStructuralFeature childFeature) {
    EditingDomain editingDomain = getEditingDomain(eObject);
    ItemProviderAdapter itemProvider = getItemProvider(eObject);

    for (Object object : itemProvider.getNewChildDescriptors(eObject, editingDomain, null)) {
        CommandParameter childDescriptor = (CommandParameter) object;
        if (childDescriptor.getFeature() == childFeature) {
            return childDescriptor;
        }
    }

    return null;
}

/**
 * Returns the property descriptor for the feature of the given object.
 * 
 * @param object the object containing the feature
 * @param feature the feature/property
 * @return the {@link IItemPropertyDescriptor} for the feature of the given object
 */
public static IItemPropertyDescriptor getPropertyDescriptor(EObject object, EStructuralFeature feature) {
    ItemProviderAdapter itemProvider = getItemProvider(object);

    return itemProvider.getPropertyDescriptor(object, feature);
}

/**
 * Returns the item provider for the given object.
 * 
 * @param object the object the item provider is requested for
 * @return the {@link ItemProviderAdapter} for the given object
 */
public static ItemProviderAdapter getItemProvider(EObject object) {
    return (ItemProviderAdapter) getAdapterFactory(object).adapt(object, IItemPropertySource.class);
}

/**
 * Adds the given listener to the item provider of the given object.
 * Make sure to remove the listener when not needed anymore.
 * 
 * @param object the object
 * @param listener the listener
 */
public static void addListenerFor(EObject object, INotifyChangedListener listener) {
    ItemProviderAdapter itemProvider = getItemProvider(object);
    itemProvider.addListener(listener);
}

/**
 * Removes the given listener from the item provider of the given object.
 * 
 * @param object the object
 * @param listener the listener
 */
public static void removeListenerFor(EObject object, INotifyChangedListener listener) {
    ItemProviderAdapter itemProvider = getItemProvider(object);
    itemProvider.removeListener(listener);
}