public ConnectionDragger(DiagramSurface surface, MainWindow window, Point startPoint, Connection originalConnection, bool isStartOfConnection)
: base(surface, window, startPoint)
{
_OriginalConnection = originalConnection;
_IsStartOfConnection = isStartOfConnection;
_OriginalConnectionPoint = isStartOfConnection
? originalConnection.SourceConnectionPoint
: originalConnection.TargetConnectionPoint;
_OriginalConnectionBrush = _OriginalConnection.Stroke;
SetupMouse();
}
public void RemoveUnusedConnectionPoints()
{
var cpsToRemove = new List <ConnectionPoint>();
foreach (var cp in _ConnectionPoints)
{
ConnectionPoint cp1 = cp;
if (_Connections.Any(c => c.SourceConnectionPoint == cp1 || c.TargetConnectionPoint == cp1))
{
continue;
}
cpsToRemove.Add(cp);
}
// Remove all of the connection points identified as free
cpsToRemove.ForEach(RemoveConnectionPoint);
}
public Connection(ConnectionPoint sourceConnectionPoint)
: this()
{
SourceConnectionPoint = sourceConnectionPoint;
}
public static void SetConnectionStartPointBinding(Connection connection, ConnectionPoint connPoint)
{
if (connPoint == null) throw new ArgumentNullException("connPoint");
connection.SetBinding(StartPointProperty, new Binding { Source = connPoint, Path = new PropertyPath(ConnectionPoint.LocationProperty) });
connection.SourceConnectionPoint = connPoint;
}
public static void SetConnectionPointBinding(Connection connection, ConnectionPoint sourceConnPoint, ConnectionPoint targetConnPoint)
{
SetConnectionStartPointBinding(connection, sourceConnPoint);
SetConnectionEndPointBinding(connection, targetConnPoint);
}
protected bool CanConnect(ConnectionPoint connectionPoint)
{
DiagramShape sourceShape = _IsStartOfConnection ? _OriginalConnection.Target : _OriginalConnection.Source;
return _Surface.Controller.CanConnect(connectionPoint.ParentShape, sourceShape);
}
public NewConnectionDragger(DiagramSurface surface, MainWindow window, Point startPoint, ConnectionPoint startConnectionPoint)
: base(surface, window, startPoint, new Connection(startConnectionPoint), false)
{
_OriginalConnection.AddToSurface(surface);
_OriginalConnection.Source = startConnectionPoint.ParentShape;
Connection.SetConnectionStartPointBinding(_OriginalConnection, startConnectionPoint);
_OriginalConnection.EndPoint = Mouse.GetPosition(_Surface);
}
public Connection(ConnectionPoint sourceConnectionPoint) : this()
{
SourceConnectionPoint = sourceConnectionPoint;
}
public static void SetConnectionPointBinding(Connection connection, ConnectionPoint sourceConnPoint, ConnectionPoint targetConnPoint)
{
SetConnectionStartPointBinding(connection, sourceConnPoint);
SetConnectionEndPointBinding(connection, targetConnPoint);
}
public void RemoveConnectionPoint(ConnectionPoint p)
{
p.RemoveFromSurface(Surface);
_ConnectionPoints.Remove(p);
}
public Point Convert(DiagramShape shape, ConnectionPoint connectionPoint)
{
return Convert(Canvas.GetLeft(shape), Canvas.GetTop(shape), shape.ActualWidth, shape.ActualHeight,
connectionPoint.Side, connectionPoint.Position);
}
public void RemoveConnectionPoint(ConnectionPoint p)
{
p.RemoveFromSurface(Surface);
_ConnectionPoints.Remove(p);
}
public ConnectionPoint AddAnotherConnectionPointAt(SideOfShape side, double position)
{
var item = new ConnectionPoint(this, side, position);
_ConnectionPoints.Add(item);
item.AddToSurface(Surface);
return item;
}