private void StoreConnections(TNode node, bool register)
{
if (!register)
{
if (m_connectionDeregisterActions.ContainsKey(node))
{
foreach (var deregister in m_connectionDeregisterActions[node])
{
deregister();
}
}
return;
}
foreach (var connector in node.Data.Connectors)
{
var connectorTemp = connector;
Action <Output, bool> connected = (connection, mustExist) =>
{
ConnectionUpdate(connection, connectorTemp, mustExist);
};
connectorTemp.Connected += c => connected(c, true);
connectorTemp.Disconnected += connection =>
{
DisconnectionUpdate(connection, connectorTemp, UIInfo(connection).Area.Value);
};
foreach (var connection in connectorTemp.Connections)
{
connected(connection, false);
}
Action deregister = UIInfo(connectorTemp).Area.Changed.Register(change =>
{
foreach (var connection in connectorTemp.Connections)
{
var other = UIInfo(connection);
//The nature of the bezier splines means they will never reach outside the bounding rectangle which includes their endpoints
RectangleF fromBounds = RectangleF.Union(change.From, other.Area.Value);
var pair = UnorderedTuple.Make(connectorTemp, connection);
SpatiallyOrderedConnections.Remove(Tuple.Create(pair, fromBounds));
RectangleF toBounds = RectangleF.Union(change.To, other.Area.Value);
SpatiallyOrderedConnections.Add(Tuple.Create(pair, toBounds), toBounds);
}
});
if (!m_connectionDeregisterActions.ContainsKey(node))
{
m_connectionDeregisterActions[node] = new List <Action>();
}
m_connectionDeregisterActions[node].Add(deregister);
}
}
private void DisconnectionUpdate(Output connection, Output connectorTemp, RectangleF connectorPosition)
{
var ui1 = UIInfo(connectorTemp);
//The nature of the bezier splines means they will never reach outside the bounding rectangle which includes their endpoints
RectangleF bounds = RectangleF.Union(ui1.Area.Value, connectorPosition);
var pair = UnorderedTuple.Make(connectorTemp, connection);
bool exists = SpatiallyOrderedConnections.FindTouchingRegion(bounds).Contains(Tuple.Create(pair, bounds));
if (exists)
{
SpatiallyOrderedConnections.Remove(Tuple.Create(pair, bounds));
}
}
private void ConnectionUpdate(Output connection, Output connectorTemp, bool mustExist)
{
var ui1 = UIInfo(connectorTemp, false);
var ui2 = UIInfo(connection, !mustExist);
if (ui2 != null)
{
//The nature of the bezier splines means they will never reach outside the bounding rectangle which includes their endpoints
RectangleF bounds = RectangleF.Union(ui1.Area.Value, ui2.Area.Value);
var pair = UnorderedTuple.Make(connectorTemp, connection);
bool exists = SpatiallyOrderedConnections.FindTouchingRegion(bounds).Contains(Tuple.Create(pair, bounds));
if (!exists)
{
SpatiallyOrderedConnections.Add(Tuple.Create(pair, bounds), bounds);
}
else
{
}
}
}
