void OnConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
bool isHidden = (Control.ModifierKeys & Keys.Shift) != 0;
MyNode fromNode = (e.Connection.From.Node as MyNodeView).Node;
MyNode toNode = (e.Connection.To.Node as MyNodeView).Node;
int fromIndex = (int)e.Connection.From.Item.Tag;
int toIndex = (int)e.Connection.To.Item.Tag;
if (toNode.AcceptsConnection(fromNode, fromIndex, toIndex))
{
MyConnection newConnection = new MyConnection(fromNode, toNode, fromIndex, toIndex);
newConnection.Connect();
newConnection.IsHidden = isHidden;
e.Connection.Tag = newConnection;
(e.Connection as MyNodeViewConnection).Hidden = isHidden;
m_mainForm.RefreshConnections(this);
m_mainForm.ProjectStateChanged("Connection added");
}
else
{
// Make the graph library drop the connection.
e.Cancel = true;
}
}