void OnConnectionAdding(object sender, AcceptNodeConnectionEventArgs e)
{
//e.Cancel = true;
}
void OnConnectionRemoved(object sender, AcceptNodeConnectionEventArgs e)
{
//e.Cancel = true;
}
void OnConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
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;
MyConnection newConnection = new MyConnection(fromNode, toNode, fromIndex, toIndex);
newConnection.Connect();
e.Connection.Tag = newConnection;
}
void OnConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
//e.Cancel = true;
e.Connection.Name = "Connection " + counter ++;
e.Connection.DoubleClick += new EventHandler<NodeConnectionEventArgs>(OnConnectionDoubleClick);
}
void OnConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
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();
e.Connection.Tag = newConnection;
m_mainForm.RefreshConnections(this);
}
else
{
// Make the graph library drop the connection.
e.Cancel = true;
}
}
private void Desktop_ConnectionRemoving(object sender, AcceptNodeConnectionEventArgs e)
{
e.Cancel = TestIfInsideSimulation();
}
public bool Disconnect(NodeConnection connection)
{
if (connection == null)
return false;
if (ConnectionRemoving != null)
{
var eventArgs = new AcceptNodeConnectionEventArgs(connection);
ConnectionRemoving(this, eventArgs);
if (eventArgs.Cancel)
return false;
}
if (HasFocus(connection))
FocusElement = null;
var from = connection.From;
var to = connection.To;
if (from != null && from.Node != null)
from.Node.connections.Remove(connection);
if (to != null && to.Node != null)
to.Node.connections.Remove(connection);
// Just in case somebody stored it somewhere ..
connection.From = null;
connection.To = null;
if (ConnectionRemoved != null)
ConnectionRemoved(this, new NodeConnectionEventArgs(from, to, connection));
this.Invalidate();
return true;
}
private void GraphControl1_ConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
if (GeneratingGraph) return;
var to = GetInputItem(e.Connection.From.Item, e.Connection.To.Item);
var from = GetOutputItem(e.Connection.From.Item, e.Connection.To.Item);
//Clear all other connections. This is to prevent multiple connections from attaching to the same pin.
//Only the latest connection will provide data.
List<NodeConnection> connections = new List<NodeConnection>(to.Connector.Connectors);
foreach (var con in connections)
{
if (con == e.Connection) continue; // Skip our connection, we want to keep it
graphControl1.Disconnect(con);
}
Console.WriteLine("Connected " + from.Node.Title + " to " + to.Node.Title + "'s " + to.Tag);
if(!(to is ExecuteNodeItem) && to.Node is ActionNode) //If the to node is an action node, notify it that a pin was connected
{
var an = to.Node as ActionNode;
an.PinConnected(from, (string)to.Tag);
}
//If we are connecting execute nodes, lets walk back
if(from is ExecuteNodeItem)
{
var executeItem = from as ExecuteNodeItem;
if (executeItem.ActionCollection != null) //We are directly connected to the root
{
OnExecuteNodeChanged(from as ExecuteNodeItem);
}
else //Walk back the connection chain to find the execute node with the action collection
{
executeItem = (executeItem.Node as AbilityGraphNode).InputExecute;
while (executeItem != null && executeItem.ActionCollection == null) //Keep moving backwards until we either are null or we have a action collection
{
var connection = executeItem.Connector.Connectors.FirstOrDefault();
if (connection == null)
{
executeItem = null;
break;
}
executeItem = connection.From.Item as ExecuteNodeItem;
if(executeItem.ActionCollection == null)
{
executeItem = (executeItem.Node as AbilityGraphNode).InputExecute;
}
}
if (executeItem != null && executeItem.ActionCollection != null) //We've walked back to an action node and we aren't null, so it's an Event node.
{
OnExecuteNodeChanged(executeItem);
}
}
}
ActiveDocument.DocumentEdited(this);
}
public NodeConnection Connect(NodeConnector from, NodeConnector to)
{
if (from == null || to == null ||
from.Node == null || to.Node == null ||
!from.Enabled ||
!to.Enabled)
return null;
foreach (var other in from.Node.connections)
{
if (other.From == from &&
other.To == to)
return null;
}
foreach (var other in to.Node.connections)
{
if (other.From == from &&
other.To == to)
return null;
}
var connection = new NodeConnection();
connection.From = from;
connection.To = to;
from.Node.connections.Add(connection);
to.Node.connections.Add(connection);
if (ConnectionAdded != null)
{
var eventArgs = new AcceptNodeConnectionEventArgs(connection);
ConnectionAdded(this, eventArgs);
if (eventArgs.Cancel)
{
Disconnect(connection);
return null;
}
}
return connection;
}
/// <summary>
/// Checks whether the connection between two connectors is allowed.
/// This is achieved through event propagation.
/// </summary>
/// <returns></returns>
private bool ConnectionIsAllowed(NodeConnector from, NodeConnector to)
{
if (HighlightCompatible && null != CompatibilityStrategy)
{
if (!CompatibilityStrategy.CanConnect(from, to))
return false;
}
// If someone has subscribed to the ConnectionAdding event,
// give them a chance to interrupt this connection attempt.
if (null != ConnectionAdding)
{
// Populate a temporary NodeConnection instance.
var connection = new NodeConnection();
connection.From = from;
connection.To = to;
// Fire the event and see if someone cancels it.
var eventArgs = new AcceptNodeConnectionEventArgs(connection);
ConnectionAdding(this, eventArgs);
if (eventArgs.Cancel)
return false;
}
return true;
}
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;
}
}
private void Desktop_ConnectionRemoving(object sender, AcceptNodeConnectionEventArgs e)
{
e.Cancel = CanChangeGraph();
}
private void GraphControl1OnConnectionAdded(object sender, AcceptNodeConnectionEventArgs e)
{
e.Connection.Name = " None ";
}
