internal BaseNode GetSuccessorNode(BaseNode bn, FindState f)
{
BaseNode succ = bn;
//maybe, check to find a child 'successor'
if (f.NeedToExpandNode(bn))
{
bn.GenerateChildren();
if (bn.Nodes.Count != 0)
{
return((BaseNode)bn.Nodes[0]);
}
}
//make sure there is a sib, going up tree if necessary
while (succ.NextNode == null)
{
//give up if we reach top.
if (succ.Parent == null)
{
return(null);
}
succ = (BaseNode)succ.Parent;
}
succ = (BaseNode)succ.NextNode;
return(succ);
}
private void BeforeExpand(object sender, System.Windows.Forms.TreeViewCancelEventArgs e)
{
BaseNode an = (BaseNode)e.Node;
if (an.Spinster)
{
an.GenerateChildren();
}
}
internal BaseNode GetSuccessorNode(BaseNode bn, FindState f)
{
BaseNode succ = bn;
//maybe, check to find a child 'successor'
if (f.NeedToExpandNode(bn))
{
bn.GenerateChildren();
if (bn.Nodes.Count != 0)
{
return (BaseNode)bn.Nodes[0];
}
}
//make sure there is a sib, going up tree if necessary
while(succ.NextNode == null)
{
//give up if we reach top.
if (succ.Parent == null)
return null;
succ = (BaseNode)succ.Parent;
}
succ = (BaseNode)succ.NextNode;
return succ;
}
