/*******************************************************************************
 * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany).
 * 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:
 *     Martin Fluegge - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.cdo.dawn.reference.editor.classdiagram.provider;

import org.eclipse.emf.cdo.dawn.reference.editor.classdiagram.ClassDiagram;
import org.eclipse.emf.cdo.dawn.reference.editor.classdiagram.ClassdiagramFactory;
import org.eclipse.emf.cdo.dawn.reference.editor.classdiagram.ClassdiagramPackage;

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.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ItemProviderAdapter;
import org.eclipse.emf.edit.provider.ViewerNotification;

import java.util.Collection;
import java.util.List;

/**
 * This is the item provider adapter for a {@link org.eclipse.emf.cdo.dawn.reference.editor.classdiagram.ClassDiagram}
 * object. <!-- begin-user-doc --> <!-- end-user-doc -->
 * 
 * @generated
 */
public class ClassDiagramItemProvider extends ItemProviderAdapter implements IEditingDomainItemProvider,
    IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource
{
  /**
   * This constructs an instance from a factory and a notifier. <!-- begin-user-doc --> <!-- end-user-doc -->
   * 
   * @generated
   */
  public ClassDiagramItemProvider(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);

      addTitlePropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the Title feature. <!-- begin-user-doc --> <!-- end-user-doc -->
   * 
   * @generated
   */
  protected void addTitlePropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory)
        .getRootAdapterFactory(), getResourceLocator(), getString("_UI_ClassDiagram_title_feature"), getString(
        "_UI_PropertyDescriptor_description", "_UI_ClassDiagram_title_feature", "_UI_ClassDiagram_type"),
        ClassdiagramPackage.Literals.CLASS_DIAGRAM__TITLE, 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(ClassdiagramPackage.Literals.CLASS_DIAGRAM__CLASSES);
      childrenFeatures.add(ClassdiagramPackage.Literals.CLASS_DIAGRAM__INTERFACES);
    }
    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);
  }

  /**
   * This returns ClassDiagram.gif. <!-- begin-user-doc --> <!-- end-user-doc -->
   * 
   * @generated
   */
  @Override
  public Object getImage(Object object)
  {
    return overlayImage(object, getResourceLocator().getImage("full/obj16/ClassDiagram"));
  }

  /**
   * This returns the label text for the adapted class. <!-- begin-user-doc --> <!-- end-user-doc -->
   * 
   * @generated
   */
  @Override
  public String getText(Object object)
  {
    String label = ((ClassDiagram)object).getTitle();
    return label == null || label.length() == 0 ? getString("_UI_ClassDiagram_type")
        : getString("_UI_ClassDiagram_type") + " " + label;
  }

  /**
   * 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(ClassDiagram.class))
    {
    case ClassdiagramPackage.CLASS_DIAGRAM__TITLE:
      fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
      return;
    case ClassdiagramPackage.CLASS_DIAGRAM__CLASSES:
    case ClassdiagramPackage.CLASS_DIAGRAM__INTERFACES:
      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(ClassdiagramPackage.Literals.CLASS_DIAGRAM__CLASSES,
        ClassdiagramFactory.eINSTANCE.createAClass()));

    newChildDescriptors.add(createChildParameter(ClassdiagramPackage.Literals.CLASS_DIAGRAM__INTERFACES,
        ClassdiagramFactory.eINSTANCE.createAInterface()));
  }

  /**
   * Return the resource locator for this item provider's resources. <!-- begin-user-doc --> <!-- end-user-doc -->
   * 
   * @generated
   */
  @Override
  public ResourceLocator getResourceLocator()
  {
    return ClassdiagramEditPlugin.INSTANCE;
  }

}