/**
* Copyright (c) 2012 Eclipse contributors 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
*/
package org.eclipse.emf.ecore.xcore.provider;
import java.util.ArrayList;
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.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.ETypedElement;
import org.eclipse.emf.ecore.provider.EcoreEditPlugin;
import org.eclipse.emf.ecore.xcore.XTypedElement;
import org.eclipse.emf.ecore.xcore.XcoreFactory;
import org.eclipse.emf.ecore.xcore.XcorePackage;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.ComposedImage;
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.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;
/**
* This is the item provider adapter for a {@link org.eclipse.emf.ecore.xcore.XTypedElement} object.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class XTypedElementItemProvider
extends XNamedElementItemProvider
implements
IEditingDomainItemProvider,
IStructuredItemContentProvider,
ITreeItemContentProvider,
IItemLabelProvider,
IItemPropertySource
{
/**
* This constructs an instance from a factory and a notifier.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public XTypedElementItemProvider(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);
addUnorderedPropertyDescriptor(object);
addUniquePropertyDescriptor(object);
addMultiplicityPropertyDescriptor(object);
}
return itemPropertyDescriptors;
}
/**
* This adds a property descriptor for the Unordered feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addUnorderedPropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_XTypedElement_unordered_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_XTypedElement_unordered_feature", "_UI_XTypedElement_type"),
XcorePackage.Literals.XTYPED_ELEMENT__UNORDERED,
true,
false,
false,
ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
null,
null));
}
/**
* This adds a property descriptor for the Unique feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addUniquePropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_XTypedElement_unique_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_XTypedElement_unique_feature", "_UI_XTypedElement_type"),
XcorePackage.Literals.XTYPED_ELEMENT__UNIQUE,
true,
false,
false,
ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
null,
null));
}
/**
* This adds a property descriptor for the Multiplicity feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addMultiplicityPropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(createItemPropertyDescriptor
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_XTypedElement_multiplicity_feature"),
getString("_UI_PropertyDescriptor_description", "_UI_XTypedElement_multiplicity_feature", "_UI_XTypedElement_type"),
XcorePackage.Literals.XTYPED_ELEMENT__MULTIPLICITY,
true,
false,
false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE,
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
*/
@Override
public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object)
{
if (childrenFeatures == null)
{
super.getChildrenFeatures(object);
childrenFeatures.add(XcorePackage.Literals.XTYPED_ELEMENT__TYPE);
}
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;
}
/**
* This returns the label text for the adapted class.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
@Override
public String getText(Object object)
{
return super.getText(object);
}
public Object getComposedImage(Object object, Object imageToCompose)
{
XTypedElement xTypedElement = (XTypedElement)object;
Collection<Object> images = new ArrayList<Object>();
images.add(imageToCompose);
String imageName = "full/obj16/EOccurrence";
int[] multiplicity = xTypedElement.getMultiplicity();
int minOccurs = 0;
int maxOccurs = 1;
if (multiplicity == null)
{
// optional is the default
//
}
else if (multiplicity.length == 0)
{
maxOccurs = EStructuralFeature.UNBOUNDED_MULTIPLICITY;
}
else if (multiplicity.length == 1)
{
if (multiplicity[0] == -3)
{
// [?]
//
}
else if (multiplicity[0] == -2)
{
// [+]
//
minOccurs = 1;
maxOccurs = EStructuralFeature.UNBOUNDED_MULTIPLICITY;
}
else if (multiplicity[0] == -1)
{
// [*]
//
maxOccurs = EStructuralFeature.UNBOUNDED_MULTIPLICITY;
}
else
{
// [n]
//
minOccurs = multiplicity[0];
maxOccurs = multiplicity[0];
}
}
else
{
minOccurs = multiplicity[0];
maxOccurs = multiplicity[1];
}
if (minOccurs >= 0 && (minOccurs <= maxOccurs || maxOccurs == ETypedElement.UNBOUNDED_MULTIPLICITY || maxOccurs == ETypedElement.UNSPECIFIED_MULTIPLICITY))
{
switch (minOccurs)
{
case 0:
{
imageName += "Zero";
break;
}
case 1:
{
imageName += "One";
break;
}
default:
{
imageName += "N";
break;
}
}
if (minOccurs != maxOccurs)
{
switch (maxOccurs)
{
case ETypedElement.UNSPECIFIED_MULTIPLICITY:
{
imageName += "ToUnspecified";
break;
}
case ETypedElement.UNBOUNDED_MULTIPLICITY:
{
imageName += "ToUnbounded";
break;
}
case 0:
{
break;
}
case 1:
{
imageName += "ToOne";
break;
}
default:
{
imageName += minOccurs <= 1 ? "ToN" : "ToM";
break;
}
}
}
}
else
{
imageName += "NToM";
}
if (!imageName.equals("full/obj16/EOccurrenceZeroToOne"))
{
images.add(EcoreEditPlugin.INSTANCE.getImage(imageName));
}
final int offset =
!imageName.endsWith("Unspecified") && object instanceof EStructuralFeature ?
-2 :
-3;
return new MultiplicityComposedImage(images, offset);
}
private static final class MultiplicityComposedImage extends ComposedImage
{
private final int offset;
private MultiplicityComposedImage(Collection<?> images, int offset)
{
super(images);
this.offset = offset;
}
@Override
public List<ComposedImage.Point> getDrawPoints(Size size)
{
List<ComposedImage.Point> result = super.getDrawPoints(size);
if (result.size() > 1)
{
result.get(0).y = offset;
}
return result;
}
}
/**
* 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);
switch (notification.getFeatureID(XTypedElement.class))
{
case XcorePackage.XTYPED_ELEMENT__UNORDERED:
case XcorePackage.XTYPED_ELEMENT__UNIQUE:
case XcorePackage.XTYPED_ELEMENT__MULTIPLICITY:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
return;
case XcorePackage.XTYPED_ELEMENT__TYPE:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false));
return;
}
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);
newChildDescriptors.add
(createChildParameter
(XcorePackage.Literals.XTYPED_ELEMENT__TYPE,
XcoreFactory.eINSTANCE.createXGenericType()));
}
}