//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation 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:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.uma.provider;

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.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.ViewerNotification;
import org.eclipse.epf.uma.Activity;
import org.eclipse.epf.uma.UmaFactory;
import org.eclipse.epf.uma.UmaPackage;

/**
 * This is the item provider adapter for a {@link org.eclipse.epf.uma.Activity} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class ActivityItemProvider extends WorkBreakdownElementItemProvider
		implements IEditingDomainItemProvider, IStructuredItemContentProvider,
		ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {
	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ActivityItemProvider(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);

			addFulfillsPropertyDescriptor(object);
			addVariabilityTypePropertyDescriptor(object);
			addVariabilityBasedOnElementPropertyDescriptor(object);
			addBreakdownElementsPropertyDescriptor(object);
			addRoadmapsPropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Fulfills feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addFulfillsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_FulfillableElement_fulfills_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_FulfillableElement_fulfills_feature", "_UI_FulfillableElement_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.FULFILLABLE_ELEMENT__FULFILLS,
						true, false, true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Variability Type feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addVariabilityTypePropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_VariabilityElement_variabilityType_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_VariabilityElement_variabilityType_feature", "_UI_VariabilityElement_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.VARIABILITY_ELEMENT__VARIABILITY_TYPE,
						true, false, false,
						ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
	}

	/**
	 * This adds a property descriptor for the Variability Based On Element feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addVariabilityBasedOnElementPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_VariabilityElement_variabilityBasedOnElement_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_VariabilityElement_variabilityBasedOnElement_feature", "_UI_VariabilityElement_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.VARIABILITY_ELEMENT__VARIABILITY_BASED_ON_ELEMENT,
						true, false, true, null, 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(UmaPackage.Literals.WORK_DEFINITION__PRECONDITION);
			childrenFeatures
					.add(UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION);
		}
		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 adds a property descriptor for the Breakdown Elements feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addBreakdownElementsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Activity_breakdownElements_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Activity_breakdownElements_feature", "_UI_Activity_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.ACTIVITY__BREAKDOWN_ELEMENTS, true,
						false, true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the Roadmaps feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addRoadmapsPropertyDescriptor(Object object) {
		itemPropertyDescriptors
				.add(createItemPropertyDescriptor(
						((ComposeableAdapterFactory) adapterFactory)
								.getRootAdapterFactory(),
						getResourceLocator(),
						getString("_UI_Activity_roadmaps_feature"), //$NON-NLS-1$
						getString(
								"_UI_PropertyDescriptor_description", "_UI_Activity_roadmaps_feature", "_UI_Activity_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						UmaPackage.Literals.ACTIVITY__ROADMAPS, true, false,
						true, null, null, null));
	}

	/**
	 * This returns Activity.gif.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage(
				"full/obj16/Activity")); //$NON-NLS-1$
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String getText(Object object) {
		String label = ((Activity) object).getName();
		return label == null || label.length() == 0 ? getString("_UI_Activity_type") : //$NON-NLS-1$
				getString("_UI_Activity_type") + " " + label; //$NON-NLS-1$ //$NON-NLS-2$
	}

	/**
	 * 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(Activity.class)) {
		case UmaPackage.ACTIVITY__VARIABILITY_TYPE:
			fireNotifyChanged(new ViewerNotification(notification, notification
					.getNotifier(), false, true));
			return;
		case UmaPackage.ACTIVITY__PRECONDITION:
		case UmaPackage.ACTIVITY__POSTCONDITION:
			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(
				UmaPackage.Literals.WORK_DEFINITION__PRECONDITION,
				UmaFactory.eINSTANCE.createConstraint()));

		newChildDescriptors.add(createChildParameter(
				UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION,
				UmaFactory.eINSTANCE.createConstraint()));
	}

	/**
	 * This returns the label text for {@link org.eclipse.emf.edit.command.CreateChildCommand}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String getCreateChildText(Object owner, Object feature,
			Object child, Collection<?> selection) {
		Object childFeature = feature;
		Object childObject = child;

		boolean qualify = childFeature == UmaPackage.Literals.METHOD_ELEMENT__OWNED_RULES
				|| childFeature == UmaPackage.Literals.WORK_DEFINITION__PRECONDITION
				|| childFeature == UmaPackage.Literals.WORK_DEFINITION__POSTCONDITION;

		if (qualify) {
			return getString("_UI_CreateChild_text2", //$NON-NLS-1$
					new Object[] { getTypeText(childObject),
							getFeatureText(childFeature), getTypeText(owner) });
		}
		return super.getCreateChildText(owner, feature, child, selection);
	}

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

}