/*
 * Copyright (c) 2009-2012, 2015 Eike Stepper (Berlin, Germany) 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:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.emf.cdo.examples.company.provider;

import org.eclipse.emf.cdo.edit.CDOItemProviderAdapter;
import org.eclipse.emf.cdo.examples.company.Category;
import org.eclipse.emf.cdo.examples.company.CompanyFactory;
import org.eclipse.emf.cdo.examples.company.CompanyPackage;

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.IChildCreationExtender;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemColorProvider;
import org.eclipse.emf.edit.provider.IItemFontProvider;
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;

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

/**
 * This is the item provider adapter for a {@link org.eclipse.emf.cdo.examples.company.Category} object. <!--
 * begin-user-doc --> <!-- end-user-doc -->
 *
 * @generated
 */
public class CategoryItemProvider extends CDOItemProviderAdapter
    implements IEditingDomainItemProvider, IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider,
    IItemPropertySource, IItemColorProvider, IItemFontProvider
{
  /**
   * This constructs an instance from a factory and a notifier.
   * <!-- begin-user-doc --> <!-- end-user-doc -->
   * @generated
   */
  public CategoryItemProvider(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);

      addNamePropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the Name feature.
   * <!-- begin-user-doc --> <!-- end-user-doc -->
   * @generated
   */
  protected void addNamePropertyDescriptor(Object object)
  {
    itemPropertyDescriptors
        .add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
            getResourceLocator(), getString("_UI_Category_name_feature"),
            getString("_UI_PropertyDescriptor_description", "_UI_Category_name_feature", "_UI_Category_type"),
            CompanyPackage.Literals.CATEGORY__NAME, 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(CompanyPackage.Literals.CATEGORY__CATEGORIES);
      childrenFeatures.add(CompanyPackage.Literals.CATEGORY__PRODUCTS);
    }
    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
  public boolean hasChildren(Object object)
  {
    return hasChildren(object, true);
  }

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

  /**
   * <!-- 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
   */
  @Override
  public String getText(Object object)
  {
    String label = ((Category)object).getName();
    return label == null || label.length() == 0 ? getString("_UI_Category_type")
        : getString("_UI_Category_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(Category.class))
    {
    case CompanyPackage.CATEGORY__NAME:
      fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
      return;
    case CompanyPackage.CATEGORY__CATEGORIES:
    case CompanyPackage.CATEGORY__PRODUCTS:
      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(CompanyPackage.Literals.CATEGORY__CATEGORIES, CompanyFactory.eINSTANCE.createCategory()));

    newChildDescriptors.add(
        createChildParameter(CompanyPackage.Literals.CATEGORY__PRODUCTS, CompanyFactory.eINSTANCE.createProduct()));
  }

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

}