plugins/org.eclipse.emf.cdo.lm.assembly.edit/src/org/eclipse/emf/cdo/lm/assembly/provider/AssemblyItemProvider.java

/*
 * Copyright (c) 2022 Eike Stepper (Loehne, 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.lm.assembly.provider;

import org.eclipse.emf.cdo.etypes.provider.ModelElementItemProvider;
import org.eclipse.emf.cdo.lm.assembly.Assembly;
import org.eclipse.emf.cdo.lm.assembly.AssemblyFactory;
import org.eclipse.emf.cdo.lm.assembly.AssemblyPackage;

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.IItemPropertyDescriptor;
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.lm.assembly.Assembly} object. <!--
 * begin-user-doc --> <!-- end-user-doc -->
 *
 * @generated
 */
public class AssemblyItemProvider extends ModelElementItemProvider
{
  /**
   * This constructs an instance from a factory and a notifier. <!--
   * begin-user-doc --> <!-- end-user-doc -->
   *
   * @generated
   */
  public AssemblyItemProvider(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);

      addSystemNamePropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the System Name feature. <!--
   * begin-user-doc --> <!-- end-user-doc -->
   *
   * @generated
   */
  protected void addSystemNamePropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_Assembly_systemName_feature"), getString("_UI_PropertyDescriptor_description", "_UI_Assembly_systemName_feature", "_UI_Assembly_type"),
        AssemblyPackage.Literals.ASSEMBLY__SYSTEM_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(AssemblyPackage.Literals.ASSEMBLY__MODULES);
    }
    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 Assembly.gif.
   * <!-- begin-user-doc --> <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Object getImage(Object object)
  {
    return overlayImage(object, getResourceLocator().getImage("full/obj16/Assembly"));
  }

  /**
   * <!-- 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 = ((Assembly)object).getSystemName();
    return label == null || label.length() == 0 ? getString("_UI_Assembly_type") : getString("_UI_Assembly_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(Assembly.class))
    {
    case AssemblyPackage.ASSEMBLY__SYSTEM_NAME:
      fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
      return;
    case AssemblyPackage.ASSEMBLY__MODULES:
      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(AssemblyPackage.Literals.ASSEMBLY__MODULES, AssemblyFactory.eINSTANCE.createAssemblyModule()));
  }

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