internal DxfModel LoadExternalReference(
Dictionary <string, DxfModel> loadedExternalReferences,
DxfBlock.GetExternalReferenceDelegate resolveExternalReference,
out bool wasAlreadyLoaded)
{
DxfModel dxfModel = (DxfModel)null;
wasAlreadyLoaded = false;
if (this.IsExternalReference && !string.IsNullOrEmpty(this.ExternalReference) && !this.IsExternalReferenceUnloaded)
{
wasAlreadyLoaded = loadedExternalReferences.TryGetValue(this.ExternalReference, out dxfModel);
if (wasAlreadyLoaded)
{
if (!this.Model.ExternalReferences.ContainsKey(this.ExternalReference))
{
this.Model.ExternalReferences.Add(this.ExternalReference, dxfModel);
}
}
else
{
dxfModel = resolveExternalReference(this);
if (dxfModel != null)
{
loadedExternalReferences.Add(this.ExternalReference, dxfModel);
if (!this.Model.ExternalReferences.ContainsKey(this.ExternalReference))
{
this.Model.ExternalReferences.Add(this.ExternalReference, dxfModel);
}
}
}
}
return(dxfModel);
}
public bool LoadExternalReference(
DxfBlock.GetExternalReferenceDelegate resolveExternalReference)
{
bool wasAlreadyLoaded;
return(this.LoadExternalReference(this.Model.ExternalReferences, resolveExternalReference, out wasAlreadyLoaded) != null);
}
