private void PrepareDescendants(TVPerson person)
{
if (person == null)
{
return;
}
try
{
int gens = (person.DescGenerations <= 0) ? 1 : person.DescGenerations;
person.GenSlice = person.BaseRadius / gens; // ?
GEDCOMIndividualRecord iRec = person.IRec;
foreach (GEDCOMSpouseToFamilyLink spLink in iRec.SpouseToFamilyLinks)
{
GEDCOMFamilyRecord famRec = spLink.Family;
bool alreadyPrepared = false;
// processing the spouse of the current person
GEDCOMIndividualRecord spouse = famRec.GetSpouseBy(iRec);
if (spouse != null)
{
TVPerson sps = PreparePerson(null, spouse, TVPersonType.Spouse);
if (sps == null)
{
// this can occur only when processing of the patriarchs later than those already processed,
// i.e. if the at first was already processed the patriarch, born in 1710, was processed his childrens
// and one of theirs spouses being a patriarch of new branches!
Logger.LogWrite("TreeVizControl.PrepareDescendants(): an unexpected collision");
alreadyPrepared = true;
}
else
{
ProcessPersonStem(sps, person, TVPersonType.Spouse);
person.Spouses.Add(sps);
}
}
if (!alreadyPrepared)
{
// processing children of the current family
foreach (GEDCOMPointer childPtr in famRec.Children)
{
GEDCOMIndividualRecord child = (GEDCOMIndividualRecord)childPtr.Value;
// exclude childless branches
if (EXCLUDE_CHILDLESS && (fBase.Context.IsChildless(child) || child.GetTotalChildsCount() < 1))
{
continue;
}
TVPerson chp = PreparePerson(person, child, TVPersonType.Child);
if (chp == null)
{
// this is someone spouse and already prepared, intersection of branches
Logger.LogWrite("TreeVizControl.PrepareDescendants(): intersection");
}
else
{
chp.BaseRadius = (float)((person.BaseRadius / 2) * 0.95);
chp.DescGenerations = person.DescGenerations - 1;
ProcessPersonStem(chp, person, TVPersonType.Child);
person.Childs.Add(chp);
PrepareDescendants(chp);
}
}
}
}
}
catch (Exception ex)
{
Logger.LogWrite("TreeVizControl.PrepareDescendants(): " + ex.Message);
}
}