/**
* Copyright (c) 2002-2006 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
*/
package org.eclipse.emf.mapping.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.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EStructuralFeature;
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.edit.provider.ViewerNotification;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptorDecorator;
import org.eclipse.emf.mapping.Mapping;
import org.eclipse.emf.mapping.MappingHelper;
import org.eclipse.emf.mapping.MappingPackage;
import org.eclipse.emf.mapping.MappingPlugin;
// import org.eclipse.emf.edit.provider.ItemProviderAdapter;
/**
* This is the item provider adpater for a {@link org.eclipse.emf.mapping.MappingHelper} object.
*/
public class MappingHelperItemProvider
extends MappingItemProviderAdapter
implements
IEditingDomainItemProvider,
IStructuredItemContentProvider,
ITreeItemContentProvider,
IItemLabelProvider,
IItemPropertySource
{
/**
* This constructs an instance from a factory and a notifier.
*/
public MappingHelperItemProvider(AdapterFactory adapterFactory)
{
super(adapterFactory);
}
/**
* This returns the property descriptors for the adapted class.
*/
@Override
public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object)
{
if (itemPropertyDescriptors == null)
{
super.getPropertyDescriptors(object);
MappingHelper mappingHelper = (MappingHelper)object;
Mapping mapping = mappingHelper.getMapper();
MappingPackage ePackage = MappingPackage.eINSTANCE;
if (!mappingHelper.getNested().isEmpty())
{
int count = 1;
for (final MappingHelper childHelper : mappingHelper.getNested())
{
String additionalLabel =
mapping.getInputs().contains(childHelper.getHelpedObject()) ? MappingPlugin.INSTANCE.getString("_UI_Input_label") :
mapping.getOutputs().contains(childHelper.getHelpedObject()) ? MappingPlugin.INSTANCE.getString("_UI_Output_label") :
"";
IItemPropertyDescriptor childHelperItemPropertyDescriptor =
(new ItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
count + ". " + additionalLabel + MappingPlugin.INSTANCE.getString("_UI_Helper_label"),
MappingPlugin.INSTANCE.getString("_UI_Helper_description"),
ePackage.getMappingHelper_Nested()));
itemPropertyDescriptors.add
(new ItemPropertyDescriptorDecorator(childHelper, childHelperItemPropertyDescriptor)
{
protected Object createPropertyValueWrapper(Object object, Object propertyValue)
{
return
new ItemPropertyDescriptor.PropertyValueWrapper
(((ComposeableAdapterFactory)getAdapterFactory()).getRootAdapterFactory(), object, propertyValue, object);
}
@Override
public Object getPropertyValue(Object o)
{
return createPropertyValueWrapper(childHelper, childHelper.getHelpedObject());
}
@Override
public Collection<?> getChoiceOfValues(Object object)
{
return null;
}
});
++count;
}
}
}
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 NOT
*/
@Override
public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object)
{
return super.getChildrenFeatures(object);
}
/**
* <!-- 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);
}
@Override
public Collection<?> getChildren(Object object)
{
return ((MappingHelper)object).getNested();
}
@Override
public boolean hasChildren(Object object)
{
return !((MappingHelper)object).getNested().isEmpty();
}
/**
* This returns the mapper of the MappingHelper.
*/
@Override
public Object getParent(Object object)
{
MappingHelper mappingHelper = (MappingHelper)object;
if (mappingHelper.getNestedIn() != null)
{
return mappingHelper.getNestedIn();
}
else
{
return mappingHelper.getMapper();
}
}
/**
* This returns MappingHelper.gif.
*/
@Override
public Object getImage(Object object)
{
return MappingPlugin.getPlugin().getImage("full/obj16/MappingHelper");
}
@Override
public String getText(Object object)
{
return "MappingHelper";
}
/**
* This handles notification by delegating to {@link #fireNotifyChanged fireNotifyChanged}.
*/
@Override
public void notifyChanged(Notification msg)
{
if (msg.getFeature() == MappingPackage.eINSTANCE.getMappingHelper_Mapper())
{
fireNotifyChanged(msg);
return;
}
super.notifyChanged(msg);
}
/**
* Return the resource locator for this item provider's resources.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public ResourceLocator getResourceLocator()
{
return MappingPlugin.INSTANCE;
}
}