/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package org.eclipselabs.mscript.computation.computationmodel.edit.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.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.eclipselabs.mscript.computation.computationmodel.ComputationModelFactory;
import org.eclipselabs.mscript.computation.computationmodel.ComputationModelPackage;
import org.eclipselabs.mscript.computation.computationmodel.FixedPointFormat;

/**
 * This is the item provider adapter for a {@link org.eclipselabs.mscript.computation.computationmodel.FixedPointFormat} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class FixedPointFormatItemProvider
	extends NumberFormatItemProvider
	implements
		IEditingDomainItemProvider,
		IStructuredItemContentProvider,
		ITreeItemContentProvider,
		IItemLabelProvider,
		IItemPropertySource {
	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public FixedPointFormatItemProvider(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);

			addIntegerLengthPropertyDescriptor(object);
			addFractionLengthPropertyDescriptor(object);
			addWordSizePropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Integer Length feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addIntegerLengthPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_FixedPointFormat_integerLength_feature"),
				 getString("_UI_PropertyDescriptor_description", "_UI_FixedPointFormat_integerLength_feature", "_UI_FixedPointFormat_type"),
				 ComputationModelPackage.Literals.FIXED_POINT_FORMAT__INTEGER_LENGTH,
				 true,
				 false,
				 false,
				 ItemPropertyDescriptor.INTEGRAL_VALUE_IMAGE,
				 null,
				 null));
	}

	/**
	 * This adds a property descriptor for the Fraction Length feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addFractionLengthPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_FixedPointFormat_fractionLength_feature"),
				 getString("_UI_PropertyDescriptor_description", "_UI_FixedPointFormat_fractionLength_feature", "_UI_FixedPointFormat_type"),
				 ComputationModelPackage.Literals.FIXED_POINT_FORMAT__FRACTION_LENGTH,
				 true,
				 false,
				 false,
				 ItemPropertyDescriptor.INTEGRAL_VALUE_IMAGE,
				 null,
				 null));
	}

	/**
	 * This adds a property descriptor for the Word Size feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addWordSizePropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_FixedPointFormat_wordSize_feature"),
				 getString("_UI_PropertyDescriptor_description", "_UI_FixedPointFormat_wordSize_feature", "_UI_FixedPointFormat_type"),
				 ComputationModelPackage.Literals.FIXED_POINT_FORMAT__WORD_SIZE,
				 false,
				 false,
				 false,
				 ItemPropertyDescriptor.INTEGRAL_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(ComputationModelPackage.Literals.FIXED_POINT_FORMAT__OPERATIONS);
		}
		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 FixedPointFormat.gif.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage("full/obj16/FixedPointFormat"));
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	@Override
	public String getText(Object object) {
		FixedPointFormat fixedPointFormat = (FixedPointFormat) object;
		StringBuilder sb = new StringBuilder();
		if (fixedPointFormat.getFractionLength() == 0) {
			sb.append(fixedPointFormat.getIntegerLength() + 1);
			sb.append("-bit Integer");
		} else {
			sb.append("Q");
			sb.append(fixedPointFormat.getIntegerLength());
			sb.append(".");
			sb.append(fixedPointFormat.getFractionLength());
			sb.append(" Fixed Point");
		}
		return  sb.toString();
	}

	/**
	 * 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(FixedPointFormat.class)) {
			case ComputationModelPackage.FIXED_POINT_FORMAT__INTEGER_LENGTH:
			case ComputationModelPackage.FIXED_POINT_FORMAT__FRACTION_LENGTH:
			case ComputationModelPackage.FIXED_POINT_FORMAT__WORD_SIZE:
				fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
				return;
			case ComputationModelPackage.FIXED_POINT_FORMAT__OPERATIONS:
				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
				(ComputationModelPackage.Literals.FIXED_POINT_FORMAT__OPERATIONS,
				 ComputationModelFactory.eINSTANCE.createFixedPointOperation()));
	}

}
