/// <summary>
/// Creates a new BagNode for the specified PropBag, optionally using a collection of PropNodes as the source.
/// The source PropNodes are cloned. If the value of a PropNode cannot be cloned, an InvalidOperation exception will be thrown.
/// This is the core of IPropBag.Clone()
/// </summary>
/// <param name="objectId">The new globally unique Id to use for this new BagNode.</param>
/// <param name="propBag">The client IPropBag.</param>
/// <param name="template">A Collection of PropNodes to use as a template for the new PropBag's Child PropItems. Can be null.</param>
/// <param name="maxPropsPerObject">The maximum number of PropItems a single PropBag can have.</param>
/// <param name="callPSParentNodeChangedEventSubsCache">A reference to a service that caches Parent Node Change Event dispatchers.</param>
public BagNode(ObjectIdType objectId, IPropBag propBag, PropNodeCollectionIntInterface template, int maxPropsPerObject, ICacheDelegates <CallPSParentNodeChangedEventSubDelegate> callPSParentNodeChangedEventSubsCache)
{
CompKey = new SimpleExKey(objectId, 0);
PropBagProxy = new WeakRefKey <IPropBag>(propBag ?? throw new ArgumentNullException(nameof(propBag)));
_callPSParentNodeChangedEventSubsCache = callPSParentNodeChangedEventSubsCache ?? throw new ArgumentNullException(nameof(callPSParentNodeChangedEventSubsCache));
_parentNCSubscriberCollection = null;
if (template == null)
{
_propNodeCollection = new PropNodeCollection(maxPropsPerObject);
}
else
{
_propNodeCollection = ClonePropNodes(template, this);
//var x = EqualityComparer<WeakRefKey<PropModelType>?>.Default;
//bool propItemSetIdsMatch = x.Equals(_propNodeCollection.PropItemSetId, template.PropItemSetId);
//System.Diagnostics.Debug.Assert(EqualityComparer<WeakRefKey<PropModelType>?>.Default.Equals(_propNodeCollection.PropItemSetId, template.PropItemSetId), "PropItemSetIds don't match.");
bool propItemSetIdsMatch = _propNodeCollection.PropItemSetKey == template.PropItemSetKey;
System.Diagnostics.Debug.Assert(propItemSetIdsMatch, "PropItemSetIds don't match.");
System.Diagnostics.Debug.Assert(_propNodeCollection.IsFixed == template.IsFixed, "IsFixed doesn't match.");
}
}
private PropNodeCollectionIntInterface ClonePropNodes(PropNodeCollectionIntInterface sourcePNC, BagNode targetParent)
{
PropNodeCollectionIntInterface result;
List <PropNode> newPropNodeColl = new List <PropNode>();
foreach (PropNode propNode in sourcePNC.GetPropNodes())
{
PropNode newPropNode = propNode.CloneForNewParent(targetParent, useExistingValues: true);
newPropNodeColl.Add(newPropNode);
}
if (sourcePNC.IsFixed)
{
System.Diagnostics.Debug.Assert(!sourcePNC.PropItemSetKey.IsEmpty, "We found a fixed PropSetCollection that has an empty PropItemSetKey.");
// Create a Fixed PropNodeCollection.
result = new PropNodeCollectionFixed(newPropNodeColl, sourcePNC.PropItemSetKey, sourcePNC.MaxPropsPerObject);
}
else
{
// Create an open PropNodeCollection.
result = new PropNodeCollection(newPropNodeColl, sourcePNC.PropItemSetKey, sourcePNC.MaxPropsPerObject);
}
return(result);
}
public bool Equals(PropNodeCollectionIntInterface other)
{
return(other != null &&
IsFixed == other.IsFixed &&
EqualityComparer <IReadOnlyDictionary <PropNameType, IPropData> > .Default.Equals
(GetPropDataItemsDict(), other.GetPropDataItemsDict()));
}
public bool TryGetPropNodeCollection(ObjectIdType objectId, out PropNodeCollectionIntInterface propNodeCollection)
{
IEnumerable <PropNode> family = _children.Where(kvp => kvp.Key.Level1Key == objectId).Select(x => x.Value);
if (family.FirstOrDefault() != null)
{
propNodeCollection = new PropNodeCollectionFixed(family, _propItemSetKey, MaxPropsPerObject);
return(true);
}
else
{
propNodeCollection = null;
return(false);
}
}
public PropNodeCollectionShared(PropNodeCollectionIntInterface sourcePropNodes)
: this(sourcePropNodes.GetPropNodes(), sourcePropNodes.PropItemSetKey, sourcePropNodes.MaxPropsPerObject)
{
}
public void Add(PropNodeCollectionIntInterface sourcePropNodes)
{
Add(sourcePropNodes.GetPropNodes());
}
public PropNodeCollectionFixed(PropNodeCollectionIntInterface sourcePropNodes, PropItemSetKeyType propItemSetKey)
: this(sourcePropNodes.GetPropNodes(), propItemSetKey, sourcePropNodes.MaxPropsPerObject)
{
}
