private void AddNewNode(string inName, stringNode parent)
{
if (!nodesDic.ContainsKey(inName))
{
stringNode newNode = new stringNode(inName);
parent.AddNode(newNode);
Reset();
OnNodeAdded(new NodeAddedEventArgs(newNode, parent));
}
else
{
MessageBox.Show("Node " + inName + " already exist !");
}
}
void DeleteNode(object sender, EventArgs e)
{
MenuItem item = sender as MenuItem;
if (item != null)
{
TreeNode node = item.Tag as TreeNode;
if (node != null)
{
stringNode realRemoved = node.Tag as stringNode;
//Reparent children
stringNode realRoot = null;
TreeNode parent = node.Parent;
if (parent != null)
{
realRoot = parent.Tag as stringNode;
}
else
{
realRoot = StringNodeRoot;
}
foreach (TreeNode subNode in node.Nodes)
{
stringNode realNode = subNode.Tag as stringNode;
realRoot.AddNode(realNode);
}
realRoot.Nodes.Remove(node.Tag as stringNode);
Reset();
OnNodeRemoved(new NodeRemovedEventArgs(realRemoved, realRoot));
}
}
}
void stringNodesTreeView_DragDrop(object sender, DragEventArgs e)
{
if (IsAdding)
{
if (e.Data.GetDataPresent(typeof(string)))
{
AddNewNode((string)e.Data.GetData(typeof(string)), RefNode.Tag as stringNode);
}
}
else
{
if (e.Data.GetDataPresent(typeof(TreeNode)))
{
TreeNode Dropped = (TreeNode)e.Data.GetData(typeof(TreeNode));
stringNode realParent = null;
stringNode refParent = null;
stringNode realDropped = null;
stringNode realRef = null;
int index = 0;
if (Dropped != null && RefNode != null)
{
realDropped = Dropped.Tag as stringNode;
realRef = RefNode.Tag as stringNode;
if (!realRef.IsChildOf(realDropped))
{
switch (DropMode)
{
case DropLocation.Top:
if (Dropped.Parent != null)
{
realParent = Dropped.Parent.Tag as stringNode;
}
else
{
realParent = StringNodeRoot;
}
if (RefNode.Parent != null)
{
refParent = RefNode.Parent.Tag as stringNode;
}
else
{
refParent = StringNodeRoot;
}
realParent.Nodes.Remove(realDropped);
index = 0;
foreach (stringNode child in refParent.Nodes)
{
if (child == realRef)
{
break;
}
index++;
}
refParent.Nodes.Insert(index, realDropped);
realDropped.Parent = refParent;
Reset();
OnNodeMoved(new NodeMovedEventArgs(realDropped, realParent, refParent, index));
break;
case DropLocation.Bottom:
if (Dropped.Parent != null)
{
realParent = Dropped.Parent.Tag as stringNode;
}
else
{
realParent = StringNodeRoot;
}
if (RefNode.Parent != null)
{
refParent = RefNode.Parent.Tag as stringNode;
}
else
{
refParent = StringNodeRoot;
}
realParent.Nodes.Remove(realDropped);
index = 0;
foreach (stringNode child in refParent.Nodes)
{
if (child == realRef)
{
index++;
break;
}
index++;
}
refParent.Nodes.Insert(index, realDropped);
realDropped.Parent = refParent;
Reset();
OnNodeMoved(new NodeMovedEventArgs(realDropped, realParent, refParent, index));
break;
default:
if (Dropped != RefNode)
{
if (Dropped.Parent != null)
{
realParent = Dropped.Parent.Tag as stringNode;
}
else
{
realParent = StringNodeRoot;
}
realRef.AddNode(realDropped);
Reset();
OnNodeMoved(new NodeMovedEventArgs(realDropped, realParent, realRef, realRef.Nodes.Count - 1));
}
break;
}
}
}
}
}
Invalidate();
RefNode = null;
IsAdding = false;
}
