/*******************************************************************************
* Copyright (c) 2011, 2012 Formal Mind GmbH and University of Dusseldorf.
* 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:
* Michael Jastram - initial API and implementation
******************************************************************************/
package org.eclipse.rmf.reqif10.pror.provider;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.rmf.reqif10.AttributeDefinition;
import org.eclipse.rmf.reqif10.ReqIF;
import org.eclipse.rmf.reqif10.ReqIF10Factory;
import org.eclipse.rmf.reqif10.ReqIF10Package;
import org.eclipse.rmf.reqif10.ReqIFContent;
import org.eclipse.rmf.reqif10.SpecElementWithAttributes;
import org.eclipse.rmf.reqif10.SpecObject;
import org.eclipse.rmf.reqif10.SpecRelation;
import org.eclipse.rmf.reqif10.SpecType;
import org.eclipse.rmf.reqif10.Specification;
import org.eclipse.rmf.reqif10.common.util.ReqIF10Util;
import org.eclipse.rmf.reqif10.pror.util.ProrUtil;
import org.eclipse.rmf.reqif10.util.ReqIF10Switch;
/**
* This is the item provider adapter for a {@link org.eclipse.rmf.reqif10.SpecType} object.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
public class SpecTypeItemProvider extends IdentifiableItemProvider {
/**
* This constructs an instance from a factory and a notifier. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public SpecTypeItemProvider(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);
}
return itemPropertyDescriptors;
}
/**
* 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
*/
@Override
public Collection<? extends EStructuralFeature> getChildrenFeatures(
Object object) {
if (childrenFeatures == null) {
super.getChildrenFeatures(object);
childrenFeatures.add(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES);
}
return childrenFeatures;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
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);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected boolean shouldComposeCreationImage() {
return true;
}
@Override
public Object getImage(Object object) {
return overlayImage(object, getResourceLocator().getImage("full/obj16/SpecType.png"));
}
/**
* This returns the label text for the adapted class.
* <!-- begin-user-doc
* --> <!-- end-user-doc -->
* @generated NOT
*/
@Override
public String getText(Object object) {
String typeName = ProrUtil.substractPrefixPostfix(object, "", "TypeImpl");
String label = ((SpecType)object).getLongName();
label = label == null || label.length() == 0 ?
getString("_UI_Unnamed_Element") :
label;
return label + " (" + typeName + ")";
}
/**
* 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 -->
* On any change do we also notifiy all {@link SpecElementWithAttributes} that use this type.
* <!-- end-user-doc -->
* @generated NOT
*/
@Override
public void notifyChanged(Notification notification) {
updateChildren(notification);
switch (notification.getFeatureID(SpecType.class)) {
case ReqIF10Package.SPEC_TYPE__SPEC_ATTRIBUTES:
fireNotifyChanged(new ViewerNotification(notification,
notification.getNotifier(), true, false));
// no return here on purpose!
case ReqIF10Package.SPEC_TYPE__LONG_NAME:
notifyAllSpecElementWithAttributesTypeChange(
(SpecType) notification.getNotifier(), adapterFactory);
// no return here on purpose!
}
super.notifyChanged(notification);
}
/**
* Notifies all SpecElements when any aspect of the associated SpecType changes.
*/
private void notifyAllSpecElementWithAttributesTypeChange(
final SpecType specType, AdapterFactory adapterFactory) {
ReqIF reqif = ReqIF10Util.getReqIF(specType);
if (reqif != null) {
ReqIF10Switch<SpecElementWithAttributes> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {
@Override
public SpecElementWithAttributes caseSpecObject(
SpecObject object) {
object.eNotify(new ENotificationImpl(
(InternalEObject) object, Notification.SET,
ReqIF10Package.Literals.SPEC_OBJECT__TYPE,
specType, specType));
return object;
}
@Override
public SpecElementWithAttributes caseSpecification(
Specification object) {
object.eNotify(new ENotificationImpl(
(InternalEObject) object, Notification.SET,
ReqIF10Package.Literals.SPECIFICATION__TYPE,
specType, specType));
return object;
}
@Override
public SpecElementWithAttributes caseSpecRelation(
SpecRelation object) {
object.eNotify(new ENotificationImpl(
(InternalEObject) object, Notification.SET,
ReqIF10Package.Literals.SPEC_RELATION__TYPE,
specType, specType));
return object;
}
};
ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
}
}
/**
* 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);
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionXHTML()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionBoolean()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionDate()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionEnumeration()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionInteger()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionReal()));
newChildDescriptors.add
(createChildParameter
(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
ReqIF10Factory.eINSTANCE.createAttributeDefinitionString()));
}
/**
* If we add an AttributeDefinition, we also have to update all
* {@link SpecElementWithAttributes} that use it. We do this by re-setting
* the type on those specElements.
*/
@Override
protected Command createAddCommand(EditingDomain domain, EObject owner,
EStructuralFeature feature, Collection<?> collection, int index) {
if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
SpecType specType = (SpecType) owner;
Set<Object> attrs = new HashSet<Object>(
specType.getSpecAttributes());
attrs.addAll(collection);
CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
specType, attrs);
cmd.append(super.createAddCommand(domain, owner, feature,
collection, index));
return cmd;
}
return super
.createAddCommand(domain, owner, feature, collection, index);
}
/**
* If we add an AttributeDefinition, we also have to update all
* {@link SpecElementWithAttributes} that use it. We do this by re-setting
* the type on those specElements.
*/
@Override
protected Command createRemoveCommand(EditingDomain domain, EObject owner,
EStructuralFeature feature, Collection<?> collection) {
if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
SpecType specType = (SpecType) owner;
Set<Object> attrs = new HashSet<Object>(
specType.getSpecAttributes());
attrs.removeAll(collection);
CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
specType, attrs);
cmd.append(super.createRemoveCommand(domain, owner, feature,
collection));
return cmd;
}
return super.createRemoveCommand(domain, owner, feature, collection);
}
/**
* Builds a command that adjusts values to SpecElements that have the given
* type.
*/
private CompoundCommand adjustValuesForSpecAttributesVisitor(
final EditingDomain domain, final SpecType specType,
final Collection<?> newAttributeDefinitions) {
final CompoundCommand cmd = new CompoundCommand();
ReqIF reqif = ReqIF10Util.getReqIF(specType);
if (reqif == null) {
return cmd;
}
ReqIF10Switch<?> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {
@SuppressWarnings("unchecked")
@Override
public SpecElementWithAttributes caseSpecElementWithAttributes(
SpecElementWithAttributes object) {
SpecType type = ReqIF10Util.getSpecType(object);
if (specType.equals(type)) {
CompoundCommand adjustValuesCommand = ProrUtil
.createValueAdjustCommand(
domain,
object,
(Collection<AttributeDefinition>) newAttributeDefinitions);
if (!adjustValuesCommand.isEmpty()) {
cmd.append(adjustValuesCommand);
}
}
return object;
}
};
ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
return cmd;
}
/**
* Use the virtual intermediate provider as the parent, rather than
* {@link ReqIFContentItemProvider}.
*/
@Override
public Object getParent(Object object) {
ReqIFContent content = ((ReqIFContent) super.getParent(object));
if (content == null)
return null;
ReqIFContentItemProvider reqifProvider = (ReqIFContentItemProvider) ProrUtil
.getItemProvider(adapterFactory, content);
return reqifProvider != null ? reqifProvider
.getVirtualSpecTypes(content) : null;
}
}