plugins/org.eclipse.oomph.setup.edit/src/org/eclipse/oomph/setup/provider/VariableChoiceItemProvider.java

/*
 * Copyright (c) 2014 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.oomph.setup.provider;

import org.eclipse.oomph.base.provider.ModelElementItemProvider;
import org.eclipse.oomph.setup.SetupPackage;
import org.eclipse.oomph.setup.VariableChoice;
import org.eclipse.oomph.util.StringUtil;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
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.oomph.setup.VariableChoice} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class VariableChoiceItemProvider extends ModelElementItemProvider
{
  /**
   * This constructs an instance from a factory and a notifier.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public VariableChoiceItemProvider(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);

      addValuePropertyDescriptor(object);
      addLabelPropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the Value feature.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void addValuePropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_VariableChoice_value_feature"),
        getString("_UI_PropertyDescriptor_description", "_UI_VariableChoice_value_feature", "_UI_VariableChoice_type"),
        SetupPackage.Literals.VARIABLE_CHOICE__VALUE, true, false, false, ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
  }

  /**
   * This adds a property descriptor for the Label feature.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void addLabelPropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_VariableChoice_label_feature"),
        getString("_UI_PropertyDescriptor_description", "_UI_VariableChoice_label_feature", "_UI_VariableChoice_type"),
        SetupPackage.Literals.VARIABLE_CHOICE__LABEL, true, false, false, ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
  }

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

  /**
   * <!-- 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)
  {
    VariableChoice choice = (VariableChoice)object;
    String value = choice.getValue();
    if (StringUtil.isEmpty(value))
    {
      return getString("_UI_VariableChoice_type");
    }

    String label = choice.getLabel();
    if (!StringUtil.isEmpty(label))
    {
      value += " (" + label + ")";
    }

    return value;
  }

  /**
   * 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(VariableChoice.class))
    {
      case SetupPackage.VARIABLE_CHOICE__VALUE:
      case SetupPackage.VARIABLE_CHOICE__LABEL:
        fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
        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);
  }

}