package org.eclipse.stem.core.graph.provider;

/******************************************************************************* 
 * Copyright (c) 2006, 2008 IBM Corporation and others. 
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0 
 * which accompanies this distribution, and is available at 
 * http://www.eclipse.org/legal/epl-v10.html 
 * 
 * Contributors: 
 *     IBM Corporation - initial API and implementation 
 *******************************************************************************/

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.stem.core.common.provider.CoreEditPlugin;
import org.eclipse.stem.core.common.provider.IdentifiableItemProvider;
import org.eclipse.stem.core.graph.GraphPackage;
//import org.eclipse.stem.core.graph.Label;
import org.eclipse.stem.core.graph.Node;

/**
 * This is the item provider adapter for a {@link org.eclipse.stem.core.graph.Node} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class NodeItemProvider
	extends IdentifiableItemProvider
	implements	
		IEditingDomainItemProvider,	
		IStructuredItemContentProvider,	
		ITreeItemContentProvider,	
		IItemLabelProvider,	
		IItemPropertySource {
	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NodeItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}

	/**
	 * This returns the property descriptors for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		if (itemPropertyDescriptors == null) {
			super.getPropertyDescriptors(object);

			addEdgesPropertyDescriptor(object);
			addLabelsPropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Edges feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addEdgesPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_Node_edges_feature"), //$NON-NLS-1$
				 getString("_UI_PropertyDescriptor_description", "_UI_Node_edges_feature", "_UI_Node_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
				 GraphPackage.Literals.NODE__EDGES,
				 true,
				 false,
				 true,
				 null,
				 null,
				 null));
	}

	/**
	 * This adds a property descriptor for the Labels feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addLabelsPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_Node_labels_feature"), //$NON-NLS-1$
				 getString("_UI_PropertyDescriptor_description", "_UI_Node_labels_feature", "_UI_Node_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
				 GraphPackage.Literals.NODE__LABELS,
				 true,
				 false,
				 true,
				 null,
				 null,
				 null));
	}

	/**
	 * This returns Node.gif.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage("full/customobj16/Node"));
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	public String getText(Object object) {
		return super.getText(object);
	} // getText
	
	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
//	@Override
	public String getTextGen(Object object) {
		URI labelValue = ((Node)object).getURI();
		String label = labelValue == null ? null : labelValue.toString();
		return label == null || label.length() == 0 ?
			getString("_UI_Node_type") : //$NON-NLS-1$
			getString("_UI_Node_type") + " " + label; //$NON-NLS-1$ //$NON-NLS-2$
	}

	/**
	 * This handles model notifications by calling {@link #updateChildren} to update any cached
	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);
		super.notifyChanged(notification);
	}

	/**
	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children
	 * that can be created under this object.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) {
		super.collectNewChildDescriptors(newChildDescriptors, object);
	}

	/**
	 * Return the resource locator for this item provider's resources.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ResourceLocator getResourceLocator() {
		return CoreEditPlugin.INSTANCE;
	}

}