public MenuNode AddSubNode(string label)
{
MenuNode subNode = new MenuNode(label, this);
SubNodes.Add(subNode);
return(subNode);
}
public bool Select(int selection, bool ignoreInvalid)
{
if (selection < 0)
{
if (ignoreInvalid)
{
return(true);
}
throw new ArgumentOutOfRangeException("selection",
"The selected menu item index must not be negative");
}
if (selection > current.EntryCount)
{
if (ignoreInvalid)
{
return(true);
}
throw new ArgumentOutOfRangeException("selection",
"The selected menu item index exceeds the number of entries");
}
if (selection == 0 && current.Parent == null)
{
if (ignoreInvalid)
{
return(true);
}
throw new ArgumentOutOfRangeException("selection",
"This is node does not have a parent node");
}
if (selection == 0)
{
current = current.Parent;
}
else if (selection <= current.EndNodes.Count)
{
current.EndNodes[selection - 1].Function?.Invoke();
return(false);
}
else
{
current = current.SubNodes[selection - 1 - current.EndNodes.Count];
}
return(true);
}
public MenuNode(string label, MenuNode parent)
{
Label = label;
Parent = parent;
current = this;
}
public MenuNode(string label)
{
Label = label;
current = this;
}