private VisualElementGeneric SearchInListOfVisualElements(VisualElementGeneric tvl, object dataObject,
bool alsoDereferenceObjects = false)
{
if (tvl == null || dataObject == null)
{
return(null);
}
// Test for VirtualEntities. Allow a string comparison
var mdo = tvl.GetMainDataObject();
if (mdo == null)
{
return(null);
}
var s1 = mdo as string;
var s2 = dataObject as string;
if (s1 != null && s1 == s2)
{
return(tvl);
}
// normal comparison
if (tvl.GetMainDataObject() == dataObject)
{
return(tvl);
}
// extended?
if (alsoDereferenceObjects && tvl.GetDereferencedMainDataObject() == dataObject)
{
return(tvl);
}
// recursion
foreach (var mem in tvl.Members)
{
var x = SearchInListOfVisualElements(mem, dataObject, alsoDereferenceObjects);
if (x != null)
{
return(x);
}
}
return(null);
}
/// <summary>
/// Return true, if <code>mem</code> has to be deleted, because not in filter.
/// </summary>
/// <param name="mem"></param>
/// <param name="fullFilterElementName"></param>
/// <returns></returns>
public bool FilterLeavesOfVisualElements(VisualElementGeneric mem, string fullFilterElementName)
{
if (fullFilterElementName == null)
{
return(false);
}
fullFilterElementName = fullFilterElementName.Trim().ToLower();
if (fullFilterElementName == "")
{
return(false);
}
// has Members -> is not leaf!
if (mem.Members != null && mem.Members.Count > 0)
{
// go into non-leafs mode -> simply go over list
var todel = new List <VisualElementGeneric>();
foreach (var x in mem.Members)
{
if (FilterLeavesOfVisualElements(x, fullFilterElementName))
{
todel.Add(x);
}
}
// delete items on list
foreach (var td in todel)
{
mem.Members.Remove(td);
}
}
else
{
// consider lazy loading
if (mem is VisualElementEnvironmentItem memei &&
memei.theItemType == VisualElementEnvironmentItem.ItemType.DummyNode)
{
return(false);
}
// this member is a leaf!!
var isIn = false;
var mdo = mem.GetMainDataObject();
if (mdo != null && mdo is AdminShell.Referable)
{
var mdoen = (mdo as AdminShell.Referable).GetElementName().Trim().ToLower();
isIn = fullFilterElementName.IndexOf(mdoen, StringComparison.Ordinal) >= 0;
}
if (mdo != null && mdo is AdminShell.Reference)
{
var mdoen = (mdo as AdminShell.Reference).GetElementName().Trim().ToLower();
isIn = fullFilterElementName.IndexOf(mdoen, StringComparison.Ordinal) >= 0;
}
return(!isIn);
}
return(false);
}
//
// Element View Drawing
//
private VisualElementGeneric SearchInListOfVisualElements(VisualElementGeneric tvl, object dataObject)
{
if (tvl == null || dataObject == null)
{
return(null);
}
if (tvl.GetMainDataObject() == dataObject)
{
return(tvl);
}
foreach (var mem in tvl.Members)
{
var x = SearchInListOfVisualElements(mem, dataObject);
if (x != null)
{
return(x);
}
}
return(null);
}
