public void DeleteInstance(NdfObject inst)
{
Instances.Remove(inst);
NdfClass cls = inst.Class;
cls.Instances.Remove(inst);
if (TopObjects.Contains(inst.Id))
{
TopObjects.Remove(inst.Id);
}
}
public NdfObject CreateInstanceOf(NdfClass cls, bool isTopLevelInstance = true)
{
var newId = (uint)Instances.Count();
var inst = new NdfObject {
Class = cls, Id = newId
};
AddEmptyProperties(inst);
Instances.Add(inst);
if (isTopLevelInstance)
{
TopObjects.Add(inst.Id);
inst.IsTopObject = true;
}
return(inst);
}
public NdfObject CreateInstanceOf(NdfClass cls, bool isTopLevelInstance = true)
{
var newId = (uint)Instances.Count();
var inst = new NdfObject { Class = cls, Id = newId };
AddEmptyProperties(inst);
Instances.Add(inst);
if (isTopLevelInstance)
{
TopObjects.Add(inst.Id);
inst.IsTopObject = true;
}
return inst;
}
/// <summary>
/// Reads the Classes dictionary.
/// </summary>
/// <param name="ms"></param>
/// <param name="owner"></param>
/// <returns></returns>
protected ObservableCollection<NdfClass> ReadClasses(Stream ms, NdfBinary owner)
{
var classes = new ObservableCollection<NdfClass>();
NdfFooterEntry classEntry = owner.Footer.Entries.Single(x => x.Name == "CLAS");
ms.Seek(classEntry.Offset, SeekOrigin.Begin);
uint i = 0;
var buffer = new byte[4];
while (ms.Position < classEntry.Offset + classEntry.Size)
{
var nclass = new NdfClass(owner, i);
ms.Read(buffer, 0, buffer.Length);
int strLen = BitConverter.ToInt32(buffer, 0);
var strBuffer = new byte[strLen];
ms.Read(strBuffer, 0, strBuffer.Length);
nclass.Name = Encoding.GetEncoding("ISO-8859-1").GetString(strBuffer);
i++;
classes.Add(nclass);
}
return classes;
}