/**
 * <copyright>
 * 
 * Copyright (c) 2005, 2010 SAP AG.
 * 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:
 *    SAP AG - initial API, implementation and documentation
 * 
 * </copyright>
 */
package org.eclipse.graphiti.mm.pictograms.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.eclipse.graphiti.mm.algorithms.styles.Point;

import org.eclipse.graphiti.mm.pictograms.FixPointAnchor;
import org.eclipse.graphiti.mm.pictograms.PictogramsPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Fix Point Anchor</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.graphiti.mm.pictograms.impl.FixPointAnchorImpl#getLocation <em>Location</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class FixPointAnchorImpl extends AdvancedAnchorImpl implements FixPointAnchor {
	/**
	 * The cached value of the '{@link #getLocation() <em>Location</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getLocation()
	 * @generated
	 * @ordered
	 */
	protected Point location;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected FixPointAnchorImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return PictogramsPackage.Literals.FIX_POINT_ANCHOR;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Point getLocation() {
		if (location != null && location.eIsProxy()) {
			InternalEObject oldLocation = (InternalEObject)location;
			location = (Point)eResolveProxy(oldLocation);
			if (location != oldLocation) {
				InternalEObject newLocation = (InternalEObject)location;
				NotificationChain msgs = oldLocation.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, null, null);
				if (newLocation.eInternalContainer() == null) {
					msgs = newLocation.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, null, msgs);
				}
				if (msgs != null) msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, oldLocation, location));
			}
		}
		return location;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Point basicGetLocation() {
		return location;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetLocation(Point newLocation, NotificationChain msgs) {
		Point oldLocation = location;
		location = newLocation;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, oldLocation, newLocation);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setLocation(Point newLocation) {
		if (newLocation != location) {
			NotificationChain msgs = null;
			if (location != null)
				msgs = ((InternalEObject)location).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, null, msgs);
			if (newLocation != null)
				msgs = ((InternalEObject)newLocation).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, null, msgs);
			msgs = basicSetLocation(newLocation, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, PictogramsPackage.FIX_POINT_ANCHOR__LOCATION, newLocation, newLocation));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case PictogramsPackage.FIX_POINT_ANCHOR__LOCATION:
				return basicSetLocation(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case PictogramsPackage.FIX_POINT_ANCHOR__LOCATION:
				if (resolve) return getLocation();
				return basicGetLocation();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case PictogramsPackage.FIX_POINT_ANCHOR__LOCATION:
				setLocation((Point)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case PictogramsPackage.FIX_POINT_ANCHOR__LOCATION:
				setLocation((Point)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case PictogramsPackage.FIX_POINT_ANCHOR__LOCATION:
				return location != null;
		}
		return super.eIsSet(featureID);
	}

} //FixPointAnchorImpl