//Algorithm to be implemented in derived classes
public virtual void Execute(IFamilyTree tree, IFamilyMember source = null)
{
if (tree == null || tree.Root == null)
{
throw new ArgumentNullException("Tree cannot be null.");
}
this.tree = tree;
if (source != null)
{
if (!tree.MemberExists(source))
{
throw new NotInFamilyTreeException(source);
}
//prevent source from being inlaw. Inlaws do not have parents, which
//breaks traversal.
if (source.HasFact(FactType.InLaw))
{
throw new InvalidSourceException(source);
}
source.AddFact(FactType.XPosition, 0);
source.AddFact(FactType.XPosition, 0);
this.source = source;
}
Execute();
}
public void AddNonPartnershipChild(IFamilyMember parent, IFamilyMember child)
{
if (!MemberExists(parent))
{
throw new NotInFamilyTreeException(parent);
}
if (child.Parents != null)
{
throw new ExistingParentsReferenceException(child);
}
child.AddFact(FactType.HasSingleParent, true);
child.AddFact(FactType.Depth, (int)parent.Facts[FactType.Depth].Value + 1);
AddMember(child);
parent.NonPartnership.Children.Add(child);
child.Parents = parent.NonPartnership;
}
private void Above(IChildBearingBase n, int x, int y)
{
// MarkedChildBearingBases.Add(n);
if (n is IParentship)
{
IFamilyMember nextParent = ((IParentship)n).Partner1;
//set relative position
nextParent.AddFact(FactType.XPosition, x);
nextParent.AddFact(FactType.YPosition, y);
nextParent.AddFact(FactType.Ancestor, true);
MarkedMembers.Add(nextParent);
//ensure that we recurse over non-inlaw partner
if (n is IPartnership)
{
var partnership = n as IPartnership;
var otherPartner = partnership.OtherPartner(nextParent);
//set relative position
otherPartner.AddFact(FactType.XPosition, x);
otherPartner.AddFact(FactType.YPosition, y);
otherPartner.AddFact(FactType.Ancestor, true);
MarkedMembers.Add(otherPartner);
if (nextParent.HasFact(FactType.InLaw))
{
nextParent = otherPartner;
}
}
//recurse through nextParent parentships/partnerships
foreach (IChildBearingBase p in nextParent)
{
if (!MarkedChildBearingBases.Contains(p))
{
Below(p, x, y + 1, y);
}
}
//move up
if (!MarkedChildBearingBases.Contains(nextParent.Parents))
{
Above(nextParent.Parents, x, y - 1);
}
}
}
public void SetRoot(IPartnership root, IFamilyMember inlaw)
{
this.Root = root;
if (root.Partner1 != null)
{
root.Partner1.AddFact(FactType.Depth, 0);
AddMember(root.Partner1);
}
if (root.Partner2 != null)
{
root.Partner2.AddFact(FactType.Depth, 0);
AddMember(root.Partner2);
}
inlaw.AddFact(FactType.InLaw, true);
AddPartnership(root);
}
public void AddChild(IPartnership partnership, IFamilyMember child)
{
if (partnership != null && !PartnershipExists(partnership))
{
throw new InvalidPartnershipException("Cannot add children to a partnership that does not exist.");
}
if (child.Parents != null)
{
throw new ExistingParentsReferenceException(child);
}
AddMember(child);
child.Parents = partnership;
partnership.Children.Add(child);
//Determine depth based on parents
int depth = (int)(partnership.Partner1.Facts[FactType.Depth]?.Value ?? partnership.Partner2.Facts[FactType.Depth]?.Value) + 1;
child.AddFact(FactType.Depth, depth);
}
public IPartnership AddPartnership(IFamilyMember partner1, IFamilyMember partner2, bool isDivorced = false)
{
var p1Exists = MemberExists(partner1);
var p2Exists = MemberExists(partner2);
if (!p1Exists || !p2Exists)
{
throw new NotInFamilyTreeException(!p1Exists ? partner1 : partner2);
}
var partnership = FamilyTreeFactory.CreatePartnership(partner1, partner2, isDivorced);
IFamilyMember blood = null,
inlaw = null;
inlaw = partner1.HasFact(FactType.InLaw) ? partner1 : partner2;
blood = partnership.OtherPartner(inlaw);
inlaw.AddFact(FactType.Depth, blood.Facts[FactType.Depth].Value);
AddPartnership(partnership);
return(partnership);
}
public void AddInLaw(IFamilyMember inlaw)
{
inlaw.AddFact(FactType.InLaw, true);
AddMember(inlaw);
}