org.eclipse.gmf.runtime.notation/src/org/eclipse/gmf/runtime/notation/impl/DiagramImpl.java - gmf-notation/org.eclipse.gmf.notation - Git at Google

 /******************************************************************************
  * Copyright (c) 2004, 2007 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 API and implementation
  ****************************************************************************/

 package org.eclipse.gmf.runtime.notation.impl;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.common.notify.NotificationChain;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.InternalEObject;
 import org.eclipse.emf.ecore.impl.ENotificationImpl;
 import org.eclipse.emf.ecore.util.EContentsEList;
 import org.eclipse.emf.ecore.util.EObjectContainmentEList;
 import org.eclipse.emf.ecore.util.InternalEList;
 import org.eclipse.gmf.runtime.notation.Diagram;
 import org.eclipse.gmf.runtime.notation.Edge;
 import org.eclipse.gmf.runtime.notation.MeasurementUnit;
 import org.eclipse.gmf.runtime.notation.NotationPackage;
 import org.eclipse.gmf.runtime.notation.View;

 /**
  * <!-- begin-user-doc --> An implementation of the model object '<em><b>Diagram</b></em>'.
  * <!-- end-user-doc -->
  * <p>
  * The following features are implemented:
  * <ul>
  *   <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getName <em>Name</em>}</li>
  *   <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getMeasurementUnit <em>Measurement Unit</em>}</li>
  *   <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getPersistedEdges <em>Persisted Edges</em>}</li>
  *   <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getTransientEdges <em>Transient Edges</em>}</li>
  * </ul>
  * </p>
  *
  * @generated
  */
 /*
  * @canBeSeenBy %partners
  */
 public class DiagramImpl
     extends ViewImpl
     implements Diagram {

     /**
 	 * The default value of the '{@link #getName() <em>Name</em>}' attribute.
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @see #getName()
 	 * @generated
 	 * @ordered
 	 */
     protected static final String NAME_EDEFAULT = ""; //$NON-NLS-1$

     /**
 	 * The cached value of the '{@link #getName() <em>Name</em>}' attribute.
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @see #getName()
 	 * @generated
 	 * @ordered
 	 */
     protected String name = NAME_EDEFAULT;

     /**
 	 * The default value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @see #getMeasurementUnit()
 	 * @generated
 	 * @ordered
 	 */
 	protected static final MeasurementUnit MEASUREMENT_UNIT_EDEFAULT = MeasurementUnit.HIMETRIC_LITERAL;

 				/**
 	 * The offset of the flags representing the value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 * @ordered
 	 * @since 1.2
 	 */
 	protected static final int MEASUREMENT_UNIT_EFLAG_OFFSET = 11;

 				/**
 	 * The flags representing the default value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 * @ordered
 	 * @since 1.2
 	 */
 	protected static final int MEASUREMENT_UNIT_EFLAG_DEFAULT = MeasurementUnit.VALUES.indexOf(MEASUREMENT_UNIT_EDEFAULT) << MEASUREMENT_UNIT_EFLAG_OFFSET;

 				/**
 	 * The array of enumeration values for '{@link MeasurementUnit Measurement Unit}'
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 * @ordered
 	 */
 	private static final MeasurementUnit[] MEASUREMENT_UNIT_EFLAG_VALUES = (MeasurementUnit[])MeasurementUnit.VALUES.toArray(new MeasurementUnit[MeasurementUnit.VALUES.size()]);

 				/**
 	 * The flag representing the value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @see #getMeasurementUnit()
 	 * @generated
 	 * @ordered
 	 * @since 1.2
 	 */
 	protected static final int MEASUREMENT_UNIT_EFLAG = 1 << MEASUREMENT_UNIT_EFLAG_OFFSET;

 				/**
 	 * The flag representing whether the Measurement Unit attribute has been set.
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 * @ordered
 	 */
 	protected static final int MEASUREMENT_UNIT_ESETFLAG = 1 << 12;

 				/**
 	 * The cached value of the '{@link #getPersistedEdges() <em>Persisted Edges</em>}' containment reference list.
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @see #getPersistedEdges()
 	 * @generated
 	 * @ordered
 	 */
     protected EList persistedEdges;

     /**
 	 * The cached value of the '{@link #getTransientEdges() <em>Transient Edges</em>}' containment reference list.
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @see #getTransientEdges()
 	 * @generated
 	 * @ordered
 	 */
     protected EList transientEdges;

     private EContentsEList allEdges = null;

     protected static final EStructuralFeature[] edgesFeatures = new EStructuralFeature[] {
         NotationPackage.Literals.DIAGRAM__PERSISTED_EDGES,
         NotationPackage.Literals.DIAGRAM__TRANSIENT_EDGES};

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

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

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public String getName() {
 		return name;
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public void setName(String newName) {
 		String oldName = name;
 		name = newName;
 		if (eNotificationRequired())
 			eNotify(new ENotificationImpl(this, Notification.SET, NotationPackage.DIAGRAM__NAME, oldName, name));
 	}

     /**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 */
 	public MeasurementUnit getMeasurementUnit() {
 		return MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET];
 	}

 				/**
 	 * <!-- begin-user-doc --> Set the Measurement Unit for this Diagram, the
      * Measure ment unit can be set only once, the set method will not set the
      * value if it was already set <!-- end-user-doc -->
 	 * @generated NOT
 	 */
     public void setMeasurementUnit(MeasurementUnit newMeasurementUnit) {
     	if (!isSetMeasurementUnit()) {
 			MeasurementUnit oldMeasurementUnit = MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET];
 			if (newMeasurementUnit == null) newMeasurementUnit = MEASUREMENT_UNIT_EDEFAULT;
 			eFlags = eFlags & ~MEASUREMENT_UNIT_EFLAG | MeasurementUnit.VALUES.indexOf(newMeasurementUnit) << MEASUREMENT_UNIT_EFLAG_OFFSET;
 			boolean oldMeasurementUnitESet = (eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0;
 			eFlags |= MEASUREMENT_UNIT_ESETFLAG;
 			if (eNotificationRequired())
 				eNotify(new ENotificationImpl(this, Notification.SET, NotationPackage.DIAGRAM__MEASUREMENT_UNIT, oldMeasurementUnit, newMeasurementUnit, !oldMeasurementUnitESet));
     	} /*else {
     		throw new UnsupportedOperationException();
     	}*/
 	}

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void unsetMeasurementUnit() {
         /*throw new UnsupportedOperationException();*/
     }

     /**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 */
 	public boolean isSetMeasurementUnit() {
 		return (eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0;
 	}

 				/**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public EList getEdges() {
         if (allEdges == null) {
             allEdges = new EContentsEList(this, edgesFeatures);
         }
         return allEdges;
     }

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public EList getPersistedEdges() {
 		if (persistedEdges == null) {
 			persistedEdges = new EObjectContainmentEList(Edge.class, this, NotationPackage.DIAGRAM__PERSISTED_EDGES);
 		}
 		return persistedEdges;
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public EList getTransientEdges() {
 		if (transientEdges == null) {
 			transientEdges = new EObjectContainmentEList(Edge.class, this, NotationPackage.DIAGRAM__TRANSIENT_EDGES);
 		}
 		return transientEdges;
 	}

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public Edge createEdge(EClass eClass) {
         Edge newEdge = (Edge) eClass.getEPackage().getEFactoryInstance()
             .create(eClass);
         getPersistedEdges().add(newEdge);
         return newEdge;
     }

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
 		switch (featureID) {
 			case NotationPackage.DIAGRAM__EANNOTATIONS:
 				return ((InternalEList)getEAnnotations()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__SOURCE_EDGES:
 				return ((InternalEList)getSourceEdges()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__TARGET_EDGES:
 				return ((InternalEList)getTargetEdges()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
 				return ((InternalEList)getPersistedChildren()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__STYLES:
 				return ((InternalEList)getStyles()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
 				return ((InternalEList)getTransientChildren()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__PERSISTED_EDGES:
 				return ((InternalEList)getPersistedEdges()).basicRemove(otherEnd, msgs);
 			case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
 				return ((InternalEList)getTransientEdges()).basicRemove(otherEnd, msgs);
 		}
 		return eDynamicInverseRemove(otherEnd, featureID, msgs);
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public Object eGet(int featureID, boolean resolve, boolean coreType) {
 		switch (featureID) {
 			case NotationPackage.DIAGRAM__EANNOTATIONS:
 				return getEAnnotations();
 			case NotationPackage.DIAGRAM__VISIBLE:
 				return isVisible() ? Boolean.TRUE : Boolean.FALSE;
 			case NotationPackage.DIAGRAM__TYPE:
 				return getType();
 			case NotationPackage.DIAGRAM__MUTABLE:
 				return isMutable() ? Boolean.TRUE : Boolean.FALSE;
 			case NotationPackage.DIAGRAM__SOURCE_EDGES:
 				return getSourceEdges();
 			case NotationPackage.DIAGRAM__TARGET_EDGES:
 				return getTargetEdges();
 			case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
 				return getPersistedChildren();
 			case NotationPackage.DIAGRAM__STYLES:
 				return getStyles();
 			case NotationPackage.DIAGRAM__ELEMENT:
 				if (resolve) return getElement();
 				return basicGetElement();
 			case NotationPackage.DIAGRAM__DIAGRAM:
 				if (resolve) return getDiagram();
 				return basicGetDiagram();
 			case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
 				return getTransientChildren();
 			case NotationPackage.DIAGRAM__NAME:
 				return getName();
 			case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
 				return getMeasurementUnit();
 			case NotationPackage.DIAGRAM__PERSISTED_EDGES:
 				return getPersistedEdges();
 			case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
 				return getTransientEdges();
 		}
 		return eDynamicGet(featureID, resolve, coreType);
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public void eSet(int featureID, Object newValue) {
 		switch (featureID) {
 			case NotationPackage.DIAGRAM__EANNOTATIONS:
 				getEAnnotations().clear();
 				getEAnnotations().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__VISIBLE:
 				setVisible(((Boolean)newValue).booleanValue());
 				return;
 			case NotationPackage.DIAGRAM__TYPE:
 				setType((String)newValue);
 				return;
 			case NotationPackage.DIAGRAM__MUTABLE:
 				setMutable(((Boolean)newValue).booleanValue());
 				return;
 			case NotationPackage.DIAGRAM__SOURCE_EDGES:
 				getSourceEdges().clear();
 				getSourceEdges().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__TARGET_EDGES:
 				getTargetEdges().clear();
 				getTargetEdges().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
 				getPersistedChildren().clear();
 				getPersistedChildren().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__STYLES:
 				getStyles().clear();
 				getStyles().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__ELEMENT:
 				setElement((EObject)newValue);
 				return;
 			case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
 				getTransientChildren().clear();
 				getTransientChildren().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__NAME:
 				setName((String)newValue);
 				return;
 			case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
 				setMeasurementUnit((MeasurementUnit)newValue);
 				return;
 			case NotationPackage.DIAGRAM__PERSISTED_EDGES:
 				getPersistedEdges().clear();
 				getPersistedEdges().addAll((Collection)newValue);
 				return;
 			case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
 				getTransientEdges().clear();
 				getTransientEdges().addAll((Collection)newValue);
 				return;
 		}
 		eDynamicSet(featureID, newValue);
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public void eUnset(int featureID) {
 		switch (featureID) {
 			case NotationPackage.DIAGRAM__EANNOTATIONS:
 				getEAnnotations().clear();
 				return;
 			case NotationPackage.DIAGRAM__VISIBLE:
 				setVisible(VISIBLE_EDEFAULT);
 				return;
 			case NotationPackage.DIAGRAM__TYPE:
 				setType(TYPE_EDEFAULT);
 				return;
 			case NotationPackage.DIAGRAM__MUTABLE:
 				setMutable(MUTABLE_EDEFAULT);
 				return;
 			case NotationPackage.DIAGRAM__SOURCE_EDGES:
 				getSourceEdges().clear();
 				return;
 			case NotationPackage.DIAGRAM__TARGET_EDGES:
 				getTargetEdges().clear();
 				return;
 			case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
 				getPersistedChildren().clear();
 				return;
 			case NotationPackage.DIAGRAM__STYLES:
 				getStyles().clear();
 				return;
 			case NotationPackage.DIAGRAM__ELEMENT:
 				unsetElement();
 				return;
 			case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
 				getTransientChildren().clear();
 				return;
 			case NotationPackage.DIAGRAM__NAME:
 				setName(NAME_EDEFAULT);
 				return;
 			case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
 				unsetMeasurementUnit();
 				return;
 			case NotationPackage.DIAGRAM__PERSISTED_EDGES:
 				getPersistedEdges().clear();
 				return;
 			case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
 				getTransientEdges().clear();
 				return;
 		}
 		eDynamicUnset(featureID);
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public boolean eIsSet(int featureID) {
 		switch (featureID) {
 			case NotationPackage.DIAGRAM__EANNOTATIONS:
 				return eAnnotations != null && !eAnnotations.isEmpty();
 			case NotationPackage.DIAGRAM__VISIBLE:
 				return ((eFlags & VISIBLE_EFLAG) != 0) != VISIBLE_EDEFAULT;
 			case NotationPackage.DIAGRAM__TYPE:
 				return TYPE_EDEFAULT == null ? type != null : !TYPE_EDEFAULT.equals(type);
 			case NotationPackage.DIAGRAM__MUTABLE:
 				return ((eFlags & MUTABLE_EFLAG) != 0) != MUTABLE_EDEFAULT;
 			case NotationPackage.DIAGRAM__SOURCE_EDGES:
 				return sourceEdges != null && !sourceEdges.isEmpty();
 			case NotationPackage.DIAGRAM__TARGET_EDGES:
 				return targetEdges != null && !targetEdges.isEmpty();
 			case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
 				return persistedChildren != null && !persistedChildren.isEmpty();
 			case NotationPackage.DIAGRAM__STYLES:
 				return styles != null && !styles.isEmpty();
 			case NotationPackage.DIAGRAM__ELEMENT:
 				return isSetElement();
 			case NotationPackage.DIAGRAM__DIAGRAM:
 				return basicGetDiagram() != null;
 			case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
 				return transientChildren != null && !transientChildren.isEmpty();
 			case NotationPackage.DIAGRAM__NAME:
 				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
 			case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
 				return isSetMeasurementUnit();
 			case NotationPackage.DIAGRAM__PERSISTED_EDGES:
 				return persistedEdges != null && !persistedEdges.isEmpty();
 			case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
 				return transientEdges != null && !transientEdges.isEmpty();
 		}
 		return eDynamicIsSet(featureID);
 	}

     /**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
     public String toString() {
 		if (eIsProxy()) return super.toString();

 		StringBuffer result = new StringBuffer(super.toString());
 		result.append(" (name: "); //$NON-NLS-1$
 		result.append(name);
 		result.append(", measurementUnit: "); //$NON-NLS-1$
 		if ((eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0) result.append(MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET]); else result.append("<unset>"); //$NON-NLS-1$
 		result.append(')');
 		return result.toString();
 	}

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void insertEdge(Edge edge) {
         persistEdges();
         getPersistedEdges().add(edge);
     }

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void insertEdgeAt(Edge edge, int index) {
         persistEdges();
         if (getPersistedEdges().size() >= index) {
             getPersistedEdges().add(index, edge);
         }
     }

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void insertEdge(Edge edge, boolean persisted) {
         List edges = null;
         if (persisted)
             edges = getPersistedEdges();
         else
             edges = getTransientEdges();
         edges.add(edge);
     }

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void persistEdges() {
         if (transientEdges != null && transientEdges.size() > 0) {
             List edges = new ArrayList(transientEdges);
             getPersistedEdges().addAll(transientEdges);
             for (Iterator iterator = edges.iterator(); iterator.hasNext();) {
                 Edge edge = (Edge) iterator.next();
                 View sourceView = edge.getSource();
                 View targetView = edge.getTarget();
                 if (sourceView != null)
                     persistCompleteHierarchy(sourceView);
                 if (targetView != null)
                     persistCompleteHierarchy(targetView);
             }
         }
     }

     /**
      * Persist the view passed in and all its parent views if they are
      * transient.
      *
      * @param view
      *            the view to persist
      */
     private void persistCompleteHierarchy(View view) {
         view.persist();
         EObject container = view.eContainer();
         while (container instanceof View) {
             // if already persisted, quit
             EStructuralFeature sFeature = container.eContainingFeature();
             if (sFeature != null && !sFeature.isTransient()) {
                 break;
             }

             ((View) container).persist();
             container = container.eContainer();
         }
     }

     /**
      * <!-- begin-user-doc --> <!-- end-user-doc -->
      */
     public void removeEdge(Edge edge) {
         if (edge.eContainingFeature() == NotationPackage.Literals
             .DIAGRAM__TRANSIENT_EDGES) {
             if (transientEdges != null && transientEdges.size() > 0) {
                 transientEdges.remove(edge);
             }
         } else if (edge.eContainingFeature() == NotationPackage.Literals
                 .DIAGRAM__PERSISTED_EDGES) {
             if (persistedEdges != null && persistedEdges.size() > 0) {
                 persistedEdges.remove(edge);
             }
         }

     }

 } // DiagramImpl
	/******************************************************************************
	* Copyright (c) 2004, 2007 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 API and implementation
	****************************************************************************/

	package org.eclipse.gmf.runtime.notation.impl;

	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.common.notify.NotificationChain;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.InternalEObject;
	import org.eclipse.emf.ecore.impl.ENotificationImpl;
	import org.eclipse.emf.ecore.util.EContentsEList;
	import org.eclipse.emf.ecore.util.EObjectContainmentEList;
	import org.eclipse.emf.ecore.util.InternalEList;
	import org.eclipse.gmf.runtime.notation.Diagram;
	import org.eclipse.gmf.runtime.notation.Edge;
	import org.eclipse.gmf.runtime.notation.MeasurementUnit;
	import org.eclipse.gmf.runtime.notation.NotationPackage;
	import org.eclipse.gmf.runtime.notation.View;

	/**
	* <!-- begin-user-doc --> An implementation of the model object '<em><b>Diagram</b></em>'.
	* <!-- end-user-doc -->
	* <p>
	* The following features are implemented:
	* <ul>
	* <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getName <em>Name</em>}</li>
	* <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getMeasurementUnit <em>Measurement Unit</em>}</li>
	* <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getPersistedEdges <em>Persisted Edges</em>}</li>
	* <li>{@link org.eclipse.gmf.runtime.notation.impl.DiagramImpl#getTransientEdges <em>Transient Edges</em>}</li>
	* </ul>
	* </p>
	*
	* @generated
	*/
	/*
	* @canBeSeenBy %partners
	*/
	public class DiagramImpl
	extends ViewImpl
	implements Diagram {

	/**
	* The default value of the '{@link #getName() <em>Name</em>}' attribute.
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @see #getName()
	* @generated
	* @ordered
	*/
	protected static final String NAME_EDEFAULT = ""; //$NON-NLS-1$

	/**
	* The cached value of the '{@link #getName() <em>Name</em>}' attribute.
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @see #getName()
	* @generated
	* @ordered
	*/
	protected String name = NAME_EDEFAULT;

	/**
	* The default value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @see #getMeasurementUnit()
	* @generated
	* @ordered
	*/
	protected static final MeasurementUnit MEASUREMENT_UNIT_EDEFAULT = MeasurementUnit.HIMETRIC_LITERAL;

	/**
	* The offset of the flags representing the value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	* @ordered
	* @since 1.2
	*/
	protected static final int MEASUREMENT_UNIT_EFLAG_OFFSET = 11;

	/**
	* The flags representing the default value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	* @ordered
	* @since 1.2
	*/
	protected static final int MEASUREMENT_UNIT_EFLAG_DEFAULT = MeasurementUnit.VALUES.indexOf(MEASUREMENT_UNIT_EDEFAULT) << MEASUREMENT_UNIT_EFLAG_OFFSET;

	/**
	* The array of enumeration values for '{@link MeasurementUnit Measurement Unit}'
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	* @ordered
	*/
	private static final MeasurementUnit[] MEASUREMENT_UNIT_EFLAG_VALUES = (MeasurementUnit[])MeasurementUnit.VALUES.toArray(new MeasurementUnit[MeasurementUnit.VALUES.size()]);

	/**
	* The flag representing the value of the '{@link #getMeasurementUnit() <em>Measurement Unit</em>}' attribute.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @see #getMeasurementUnit()
	* @generated
	* @ordered
	* @since 1.2
	*/
	protected static final int MEASUREMENT_UNIT_EFLAG = 1 << MEASUREMENT_UNIT_EFLAG_OFFSET;

	/**
	* The flag representing whether the Measurement Unit attribute has been set.
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	* @ordered
	*/
	protected static final int MEASUREMENT_UNIT_ESETFLAG = 1 << 12;

	/**
	* The cached value of the '{@link #getPersistedEdges() <em>Persisted Edges</em>}' containment reference list.
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @see #getPersistedEdges()
	* @generated
	* @ordered
	*/
	protected EList persistedEdges;

	/**
	* The cached value of the '{@link #getTransientEdges() <em>Transient Edges</em>}' containment reference list.
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @see #getTransientEdges()
	* @generated
	* @ordered
	*/
	protected EList transientEdges;

	private EContentsEList allEdges = null;

	protected static final EStructuralFeature[] edgesFeatures = new EStructuralFeature[] {
	NotationPackage.Literals.DIAGRAM__PERSISTED_EDGES,
	NotationPackage.Literals.DIAGRAM__TRANSIENT_EDGES};

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

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

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public String getName() {
	return name;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public void setName(String newName) {
	String oldName = name;
	name = newName;
	if (eNotificationRequired())
	eNotify(new ENotificationImpl(this, Notification.SET, NotationPackage.DIAGRAM__NAME, oldName, name));
	}

	/**
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public MeasurementUnit getMeasurementUnit() {
	return MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET];
	}

	/**
	* <!-- begin-user-doc --> Set the Measurement Unit for this Diagram, the
	* Measure ment unit can be set only once, the set method will not set the
	* value if it was already set <!-- end-user-doc -->
	* @generated NOT
	*/
	public void setMeasurementUnit(MeasurementUnit newMeasurementUnit) {
	if (!isSetMeasurementUnit()) {
	MeasurementUnit oldMeasurementUnit = MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET];
	if (newMeasurementUnit == null) newMeasurementUnit = MEASUREMENT_UNIT_EDEFAULT;
	eFlags = eFlags & ~MEASUREMENT_UNIT_EFLAG \| MeasurementUnit.VALUES.indexOf(newMeasurementUnit) << MEASUREMENT_UNIT_EFLAG_OFFSET;
	boolean oldMeasurementUnitESet = (eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0;
	eFlags \|= MEASUREMENT_UNIT_ESETFLAG;
	if (eNotificationRequired())
	eNotify(new ENotificationImpl(this, Notification.SET, NotationPackage.DIAGRAM__MEASUREMENT_UNIT, oldMeasurementUnit, newMeasurementUnit, !oldMeasurementUnitESet));
	} /*else {
	throw new UnsupportedOperationException();
	}*/
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void unsetMeasurementUnit() {
	/throw new UnsupportedOperationException();/
	}

	/**
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	public boolean isSetMeasurementUnit() {
	return (eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public EList getEdges() {
	if (allEdges == null) {
	allEdges = new EContentsEList(this, edgesFeatures);
	}
	return allEdges;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public EList getPersistedEdges() {
	if (persistedEdges == null) {
	persistedEdges = new EObjectContainmentEList(Edge.class, this, NotationPackage.DIAGRAM__PERSISTED_EDGES);
	}
	return persistedEdges;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public EList getTransientEdges() {
	if (transientEdges == null) {
	transientEdges = new EObjectContainmentEList(Edge.class, this, NotationPackage.DIAGRAM__TRANSIENT_EDGES);
	}
	return transientEdges;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public Edge createEdge(EClass eClass) {
	Edge newEdge = (Edge) eClass.getEPackage().getEFactoryInstance()
	.create(eClass);
	getPersistedEdges().add(newEdge);
	return newEdge;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
	switch (featureID) {
	case NotationPackage.DIAGRAM__EANNOTATIONS:
	return ((InternalEList)getEAnnotations()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__SOURCE_EDGES:
	return ((InternalEList)getSourceEdges()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__TARGET_EDGES:
	return ((InternalEList)getTargetEdges()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
	return ((InternalEList)getPersistedChildren()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__STYLES:
	return ((InternalEList)getStyles()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
	return ((InternalEList)getTransientChildren()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__PERSISTED_EDGES:
	return ((InternalEList)getPersistedEdges()).basicRemove(otherEnd, msgs);
	case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
	return ((InternalEList)getTransientEdges()).basicRemove(otherEnd, msgs);
	}
	return eDynamicInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
	switch (featureID) {
	case NotationPackage.DIAGRAM__EANNOTATIONS:
	return getEAnnotations();
	case NotationPackage.DIAGRAM__VISIBLE:
	return isVisible() ? Boolean.TRUE : Boolean.FALSE;
	case NotationPackage.DIAGRAM__TYPE:
	return getType();
	case NotationPackage.DIAGRAM__MUTABLE:
	return isMutable() ? Boolean.TRUE : Boolean.FALSE;
	case NotationPackage.DIAGRAM__SOURCE_EDGES:
	return getSourceEdges();
	case NotationPackage.DIAGRAM__TARGET_EDGES:
	return getTargetEdges();
	case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
	return getPersistedChildren();
	case NotationPackage.DIAGRAM__STYLES:
	return getStyles();
	case NotationPackage.DIAGRAM__ELEMENT:
	if (resolve) return getElement();
	return basicGetElement();
	case NotationPackage.DIAGRAM__DIAGRAM:
	if (resolve) return getDiagram();
	return basicGetDiagram();
	case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
	return getTransientChildren();
	case NotationPackage.DIAGRAM__NAME:
	return getName();
	case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
	return getMeasurementUnit();
	case NotationPackage.DIAGRAM__PERSISTED_EDGES:
	return getPersistedEdges();
	case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
	return getTransientEdges();
	}
	return eDynamicGet(featureID, resolve, coreType);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public void eSet(int featureID, Object newValue) {
	switch (featureID) {
	case NotationPackage.DIAGRAM__EANNOTATIONS:
	getEAnnotations().clear();
	getEAnnotations().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__VISIBLE:
	setVisible(((Boolean)newValue).booleanValue());
	return;
	case NotationPackage.DIAGRAM__TYPE:
	setType((String)newValue);
	return;
	case NotationPackage.DIAGRAM__MUTABLE:
	setMutable(((Boolean)newValue).booleanValue());
	return;
	case NotationPackage.DIAGRAM__SOURCE_EDGES:
	getSourceEdges().clear();
	getSourceEdges().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__TARGET_EDGES:
	getTargetEdges().clear();
	getTargetEdges().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
	getPersistedChildren().clear();
	getPersistedChildren().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__STYLES:
	getStyles().clear();
	getStyles().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__ELEMENT:
	setElement((EObject)newValue);
	return;
	case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
	getTransientChildren().clear();
	getTransientChildren().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__NAME:
	setName((String)newValue);
	return;
	case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
	setMeasurementUnit((MeasurementUnit)newValue);
	return;
	case NotationPackage.DIAGRAM__PERSISTED_EDGES:
	getPersistedEdges().clear();
	getPersistedEdges().addAll((Collection)newValue);
	return;
	case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
	getTransientEdges().clear();
	getTransientEdges().addAll((Collection)newValue);
	return;
	}
	eDynamicSet(featureID, newValue);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public void eUnset(int featureID) {
	switch (featureID) {
	case NotationPackage.DIAGRAM__EANNOTATIONS:
	getEAnnotations().clear();
	return;
	case NotationPackage.DIAGRAM__VISIBLE:
	setVisible(VISIBLE_EDEFAULT);
	return;
	case NotationPackage.DIAGRAM__TYPE:
	setType(TYPE_EDEFAULT);
	return;
	case NotationPackage.DIAGRAM__MUTABLE:
	setMutable(MUTABLE_EDEFAULT);
	return;
	case NotationPackage.DIAGRAM__SOURCE_EDGES:
	getSourceEdges().clear();
	return;
	case NotationPackage.DIAGRAM__TARGET_EDGES:
	getTargetEdges().clear();
	return;
	case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
	getPersistedChildren().clear();
	return;
	case NotationPackage.DIAGRAM__STYLES:
	getStyles().clear();
	return;
	case NotationPackage.DIAGRAM__ELEMENT:
	unsetElement();
	return;
	case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
	getTransientChildren().clear();
	return;
	case NotationPackage.DIAGRAM__NAME:
	setName(NAME_EDEFAULT);
	return;
	case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
	unsetMeasurementUnit();
	return;
	case NotationPackage.DIAGRAM__PERSISTED_EDGES:
	getPersistedEdges().clear();
	return;
	case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
	getTransientEdges().clear();
	return;
	}
	eDynamicUnset(featureID);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public boolean eIsSet(int featureID) {
	switch (featureID) {
	case NotationPackage.DIAGRAM__EANNOTATIONS:
	return eAnnotations != null && !eAnnotations.isEmpty();
	case NotationPackage.DIAGRAM__VISIBLE:
	return ((eFlags & VISIBLE_EFLAG) != 0) != VISIBLE_EDEFAULT;
	case NotationPackage.DIAGRAM__TYPE:
	return TYPE_EDEFAULT == null ? type != null : !TYPE_EDEFAULT.equals(type);
	case NotationPackage.DIAGRAM__MUTABLE:
	return ((eFlags & MUTABLE_EFLAG) != 0) != MUTABLE_EDEFAULT;
	case NotationPackage.DIAGRAM__SOURCE_EDGES:
	return sourceEdges != null && !sourceEdges.isEmpty();
	case NotationPackage.DIAGRAM__TARGET_EDGES:
	return targetEdges != null && !targetEdges.isEmpty();
	case NotationPackage.DIAGRAM__PERSISTED_CHILDREN:
	return persistedChildren != null && !persistedChildren.isEmpty();
	case NotationPackage.DIAGRAM__STYLES:
	return styles != null && !styles.isEmpty();
	case NotationPackage.DIAGRAM__ELEMENT:
	return isSetElement();
	case NotationPackage.DIAGRAM__DIAGRAM:
	return basicGetDiagram() != null;
	case NotationPackage.DIAGRAM__TRANSIENT_CHILDREN:
	return transientChildren != null && !transientChildren.isEmpty();
	case NotationPackage.DIAGRAM__NAME:
	return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
	case NotationPackage.DIAGRAM__MEASUREMENT_UNIT:
	return isSetMeasurementUnit();
	case NotationPackage.DIAGRAM__PERSISTED_EDGES:
	return persistedEdges != null && !persistedEdges.isEmpty();
	case NotationPackage.DIAGRAM__TRANSIENT_EDGES:
	return transientEdges != null && !transientEdges.isEmpty();
	}
	return eDynamicIsSet(featureID);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	public String toString() {
	if (eIsProxy()) return super.toString();

	StringBuffer result = new StringBuffer(super.toString());
	result.append(" (name: "); //$NON-NLS-1$
	result.append(name);
	result.append(", measurementUnit: "); //$NON-NLS-1$
	if ((eFlags & MEASUREMENT_UNIT_ESETFLAG) != 0) result.append(MEASUREMENT_UNIT_EFLAG_VALUES[(eFlags & MEASUREMENT_UNIT_EFLAG) >>> MEASUREMENT_UNIT_EFLAG_OFFSET]); else result.append("<unset>"); //$NON-NLS-1$
	result.append(')');
	return result.toString();
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void insertEdge(Edge edge) {
	persistEdges();
	getPersistedEdges().add(edge);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void insertEdgeAt(Edge edge, int index) {
	persistEdges();
	if (getPersistedEdges().size() >= index) {
	getPersistedEdges().add(index, edge);
	}
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void insertEdge(Edge edge, boolean persisted) {
	List edges = null;
	if (persisted)
	edges = getPersistedEdges();
	else
	edges = getTransientEdges();
	edges.add(edge);
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void persistEdges() {
	if (transientEdges != null && transientEdges.size() > 0) {
	List edges = new ArrayList(transientEdges);
	getPersistedEdges().addAll(transientEdges);
	for (Iterator iterator = edges.iterator(); iterator.hasNext();) {
	Edge edge = (Edge) iterator.next();
	View sourceView = edge.getSource();
	View targetView = edge.getTarget();
	if (sourceView != null)
	persistCompleteHierarchy(sourceView);
	if (targetView != null)
	persistCompleteHierarchy(targetView);
	}
	}
	}

	/**
	* Persist the view passed in and all its parent views if they are
	* transient.
	*
	* @param view
	* the view to persist
	*/
	private void persistCompleteHierarchy(View view) {
	view.persist();
	EObject container = view.eContainer();
	while (container instanceof View) {
	// if already persisted, quit
	EStructuralFeature sFeature = container.eContainingFeature();
	if (sFeature != null && !sFeature.isTransient()) {
	break;
	}

	((View) container).persist();
	container = container.eContainer();
	}
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	*/
	public void removeEdge(Edge edge) {
	if (edge.eContainingFeature() == NotationPackage.Literals
	.DIAGRAM__TRANSIENT_EDGES) {
	if (transientEdges != null && transientEdges.size() > 0) {
	transientEdges.remove(edge);
	}
	} else if (edge.eContainingFeature() == NotationPackage.Literals
	.DIAGRAM__PERSISTED_EDGES) {
	if (persistedEdges != null && persistedEdges.size() > 0) {
	persistedEdges.remove(edge);
	}
	}

	}

	} // DiagramImpl