public void MouseUp(MouseEventArgs e)
{
if (IsActive)
{
DeactivateTool();
//whatever comes hereafter, a compund command is the most economic approach
CompoundCommand package = new CompoundCommand(this.Controller);
//let's see if the connection endpoints hit other connectors
//note that the following can be done because the actual connection has not been created yet
//otherwise the search would find the endpoints of the newly created connection, which
//would create a loop and a stack overflow!
IConnector startConnector = Selection.FindConnectorAt(initialPoint);
IConnector endConnector = Selection.FindConnectorAt(e.Location);
#region Create the new connection
DDTConnection cn = new DDTConnection(this.initialPoint, e.Location, this.Controller.Model, connectionType);
AddConnectionCommand newcon = new AddConnectionCommand(this.Controller, cn);
package.Commands.Add(newcon);
#endregion
#region assign id
if(startConnector != null)
{
BindConnectorsCommand bindStart = new BindConnectorsCommand(this.Controller, startConnector, cn.From);
package.Commands.Add(bindStart);
cn.fromConnectorIndex = getConnectorIndex(startConnector);
cn.fromId = ((IDDTObject)startConnector.Parent).ID;
}
#endregion
#region
if(endConnector != null)
{
BindConnectorsCommand bindEnd = new BindConnectorsCommand(this.Controller, endConnector, cn.To);
package.Commands.Add(bindEnd);
cn.toConnectorIndex = getConnectorIndex(endConnector);
cn.toId = ((IDDTObject)endConnector.Parent).ID;
}
#endregion
package.Text = "New connection";
this.Controller.UndoManager.AddUndoCommand(package);
//do it all
package.Redo();
//drop the painted ghost
Controller.View.ResetGhost();
//release other tools
this.UnsuspendTools();
}
}
//using!!!
public ConnectionText(DDTConnection conn, TextPosition pos)
: base("ConnectionText", false)
{
this.conn = conn;
this.pos = pos;
}
public static Netron.NetronLight.DDTConnection DDTRelationToCanvas(DDTRelation rel, Netron.NetronLight.Win.DiagramControl diagramControl)
{
Netron.NetronLight.DDTConnection connection;
Netron.NetronLight.ConnectionType type;
int fromId = rel.from.objectId;
int toId = rel.to.objectId;
int fromIndex;
int toIndex;
Netron.NetronLight.IDDTObject fromObj=null;
Netron.NetronLight.IDDTObject toObj = null;
IConnector fromConnector = null;
IConnector toConnector = null;
//get from and to objects
foreach (Netron.NetronLight.IDDTDiagramEntity temp in diagramControl.controller.Model.Paintables)
{
if (temp.GetType().IsSubclassOf(typeof(Netron.NetronLight.IDDTObject)))
{
if (((Netron.NetronLight.IDDTObject)temp).ID == fromId && fromObj == null)
{
fromObj = ((Netron.NetronLight.IDDTObject)temp);
}
if (((Netron.NetronLight.IDDTObject)temp).ID == toId && toObj == null)
{
toObj = ((Netron.NetronLight.IDDTObject)temp);
}
if (fromObj != null && toObj != null) { break; }
}
}
fromConnector = getConnector(rel, ConnectorOrientation.FROM, fromObj);
toConnector = getConnector(rel, ConnectorOrientation.TO, toObj);
switch (rel.from.pos)
{
case Conn_Position.LEFT:
fromIndex = 1;
break;
case Conn_Position.TOP:
fromIndex = 2;
break;
case Conn_Position.RIGHT:
fromIndex = 3;
break;
case Conn_Position.BOTTOM:
fromIndex = 4;
break;
default:
fromIndex = 1;
break;
}
switch (rel.to.pos)
{
case Conn_Position.LEFT:
toIndex = 1;
break;
case Conn_Position.TOP:
toIndex = 2;
break;
case Conn_Position.RIGHT:
toIndex = 3;
break;
case Conn_Position.BOTTOM:
toIndex = 4;
break;
default:
toIndex = 1;
break;
}
if (fromConnector == null || toConnector == null)
{
MessageBox.Show("DDTRelationToCanvas: the connection connects to a null DDTObject");
return null;
}
type = getType(rel);
connection = new Netron.NetronLight.DDTConnection(fromConnector, toConnector, diagramControl.controller.Model, type);
connection.fromId = fromId;
connection.toId = toId;
connection.ID = rel.ID;
connection.fromConnectorIndex = fromIndex;
connection.toConnectorIndex = toIndex;
/////////////////////////
return connection;
}