/*******************************************************************************
* Copyright (c) 2008-2011 Chair for Applied Software Engineering,
* Technische Universitaet Muenchen.
* 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:
******************************************************************************/
package org.eclipse.emf.emfstore.server.model.versioning.operations.provider;
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.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.emf.emfstore.common.model.ModelElementId;
import org.eclipse.emf.emfstore.server.model.versioning.operations.ContainmentType;
import org.eclipse.emf.emfstore.server.model.versioning.operations.OperationsPackage;
import org.eclipse.emf.emfstore.server.model.versioning.operations.SingleReferenceOperation;
/**
* This is the item provider adapter for a {@link org.eclipse.emf.emfstore.server.model.versioning.operations.SingleReferenceOperation} object.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class SingleReferenceOperationItemProvider extends ReferenceOperationItemProvider implements
IEditingDomainItemProvider, IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider,
IItemPropertySource {
/**
* This constructs an instance from a factory and a notifier.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public SingleReferenceOperationItemProvider(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);
addOldValuePropertyDescriptor(object);
addNewValuePropertyDescriptor(object);
}
return itemPropertyDescriptors;
}
/**
* This adds a property descriptor for the Old Value feature.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
protected void addOldValuePropertyDescriptor(Object object) {
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_SingleReferenceOperation_oldValue_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_SingleReferenceOperation_oldValue_feature", "_UI_SingleReferenceOperation_type"),
OperationsPackage.Literals.SINGLE_REFERENCE_OPERATION__OLD_VALUE,
true,
false,
true,
null,
null,
null));
}
/**
* This adds a property descriptor for the New Value feature.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
protected void addNewValuePropertyDescriptor(Object object) {
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_SingleReferenceOperation_newValue_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_SingleReferenceOperation_newValue_feature", "_UI_SingleReferenceOperation_type"),
OperationsPackage.Literals.SINGLE_REFERENCE_OPERATION__NEW_VALUE,
true,
false,
true,
null,
null,
null));
}
// begin of custom code
/**
* @param object the object
* @return This returns the image.
* @generated NOT
*/
@Override
public Object getImage(Object object) {
return super.getImage(object);
}
// end of custom code
/**
* {@inheritDoc} This returns the label text for the adapted class. <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated NOT
*/
@Override
public String getText(Object object) {
if (object instanceof SingleReferenceOperation) {
SingleReferenceOperation op = (SingleReferenceOperation) object;
ModelElementId oldElement = op.getOldValue();
ModelElementId newElement = op.getNewValue();
String oldName = getModelElementClassAndName(op.getOldValue());
String newName = getModelElementClassAndName(op.getNewValue());
String elementName = getModelElementClassAndName(op.getModelElementId());
boolean isContainer = op.getContainmentType().equals(ContainmentType.CONTAINER);
// changing containment means relocating the item
if (isContainer && oldElement != null && newElement != null) {
return "Moved " + elementName + " from " + oldName + " to " + newName;
} else if (isContainer && newElement != null) {
return "Moved " + elementName + " to " + newName;
} else if (oldElement == null && newElement == null) {
return "Unset " + op.getFeatureName() + " in " + elementName;
} else if (oldElement == null && newElement != null) {
return "Set " + op.getFeatureName() + " in " + elementName + " to " + newName;
} else if (oldElement != null && newElement == null) {
return "Unset " + op.getFeatureName() + " in " + elementName + " from previous value " + oldName;
} else {
return "Set " + op.getFeatureName() + " in " + elementName + " from " + oldName + " to " + newName;
}
}
return super.getText(object);
}
/**
* 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);
}
}