/**
* Copyright (c) 2002-2005 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 - Initial API and implementation
* Michal Antkiewicz - modifications
*/
package ca.uwaterloo.gsd.fsml.ecoreview.provider;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
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.ecore.EClass;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.EcoreFactory;
import org.eclipse.emf.ecore.EcorePackage;
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.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;
/**
* @author Michal Antkiewicz <mantkiew@gsd.uwaterloo.ca>
*
* This is the item provider adapter for a {@link org.eclipse.emf.ecore.EPackage} object.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class EPackageItemProvider
extends ENamedElementItemProvider
implements
IEditingDomainItemProvider, IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource
{
/**
* This constructs an instance from a factory and a notifier.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EPackageItemProvider(AdapterFactory adapterFactory)
{
super(adapterFactory);
}
/**
* This returns the property descriptors for the adapted class.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public List getPropertyDescriptors(Object object)
{
if (itemPropertyDescriptors == null)
{
super.getPropertyDescriptors(object);
addNsURIPropertyDescriptor(object);
addNsPrefixPropertyDescriptor(object);
addEFactoryInstancePropertyDescriptor(object);
}
return itemPropertyDescriptors;
}
/**
* This adds a property descriptor for the Ns URI feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addNsURIPropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_EPackage_nsURI_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_EPackage_nsURI_feature", "_UI_EPackage_type"),
EcorePackage.Literals.EPACKAGE__NS_URI,
true,
false,
false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE,
null,
null));
}
/**
* This adds a property descriptor for the Ns Prefix feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addNsPrefixPropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_EPackage_nsPrefix_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_EPackage_nsPrefix_feature", "_UI_EPackage_type"),
EcorePackage.Literals.EPACKAGE__NS_PREFIX,
true,
false,
false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE,
null,
null));
}
/**
* This adds a property descriptor for the EFactory Instance feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addEFactoryInstancePropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_EPackage_eFactoryInstance_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_EPackage_eFactoryInstance_feature", "_UI_EPackage_type"),
EcorePackage.Literals.EPACKAGE__EFACTORY_INSTANCE,
false,
false,
false,
null,
null,
null));
}
/**
* This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
* {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
* {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Collection getChildrenFeatures(Object object)
{
if (childrenFeatures == null)
{
super.getChildrenFeatures(object);
childrenFeatures.add(EcorePackage.Literals.EPACKAGE__ECLASSIFIERS);
childrenFeatures.add(EcorePackage.Literals.EPACKAGE__ESUBPACKAGES);
}
return childrenFeatures;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected EStructuralFeature getChildFeature(Object object, Object child)
{
// Check the type of the specified child object and return the proper feature to use for
// adding (see {@link AddCommand}) it as a child.
return super.getChildFeature(object, child);
}
/**
* This returns EPackage.gif.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Object getImage(Object object)
{
return overlayImage(object, getResourceLocator().getImage("full/obj16/EPackage"));
}
/**
* This returns the label text for the adapted class.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public String getText(Object object)
{
EPackage ePackage = (EPackage)object;
StringBuffer stringBuffer = new StringBuffer();
stringBuffer.append(ePackage.getName());
return stringBuffer.toString();
}
/**
* 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
*/
public void notifyChanged(Notification notification)
{
updateChildren(notification);
switch (notification.getFeatureID(EPackage.class))
{
case EcorePackage.EPACKAGE__NS_URI:
case EcorePackage.EPACKAGE__NS_PREFIX:
case EcorePackage.EPACKAGE__EFACTORY_INSTANCE:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
return;
case EcorePackage.EPACKAGE__ECLASSIFIERS:
case EcorePackage.EPACKAGE__ESUBPACKAGES:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false));
return;
}
super.notifyChanged(notification);
}
/**
* This adds to the collection of {@link org.eclipse.emf.edit.command.CommandParameter}s
* describing all of the children that can be created under this object.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void collectNewChildDescriptors(Collection newChildDescriptors, Object object)
{
super.collectNewChildDescriptors(newChildDescriptors, object);
newChildDescriptors.add
(createChildParameter
(EcorePackage.Literals.EPACKAGE__ECLASSIFIERS,
EcoreFactory.eINSTANCE.createEClass()));
newChildDescriptors.add
(createChildParameter
(EcorePackage.Literals.EPACKAGE__ECLASSIFIERS,
EcoreFactory.eINSTANCE.createEDataType()));
newChildDescriptors.add
(createChildParameter
(EcorePackage.Literals.EPACKAGE__ECLASSIFIERS,
EcoreFactory.eINSTANCE.createEEnum()));
newChildDescriptors.add
(createChildParameter
(EcorePackage.Literals.EPACKAGE__ESUBPACKAGES,
EcoreFactory.eINSTANCE.createEPackage()));
}
/**
* Return the resource locator for this item provider's resources.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public ResourceLocator getResourceLocator()
{
return EcoreEditPlugin.INSTANCE;
}
@Override
public Collection getChildren(Object object) {
// show all classes which are not contained by any containment reference.
HashMap<EClass, Boolean> containedClasses = new HashMap<EClass, Boolean>();
EPackage ePackage = (EPackage) object;
// store all reference types in the hash map
for (Object aux : ePackage.getEClassifiers())
if (aux instanceof EClass) {
EClass eClass = (EClass) aux;
for (Object refAux : eClass.getEReferences()) {
EReference ref = (EReference) refAux;
if (!ref.isContainment())
continue;
containedClasses.put(ref.getEReferenceType(), true);
}
}
// find root classes
Collection<EClass> rootClasses = new ArrayList<EClass>();
for (Object aux : ePackage.getEClassifiers())
if (aux instanceof EClass) {
EClass eClass = (EClass) aux;
// check super types
ArrayList<EClass> superTypes = new ArrayList<EClass>();
superTypes.add(eClass);
boolean isContained = false;
while (!superTypes.isEmpty()) {
EClass superClass = superTypes.remove(0);
if (containedClasses.containsKey(superClass)) {
isContained = true;
break;
}
superTypes.addAll(superClass.getEAllSuperTypes());
}
// all super types were examined...
if (!isContained)
rootClasses.add(eClass);
}
return rootClasses;
}
}