private ConnectionPoint GetEmptyEdgeMidConnectionPointNotOfType(UIElement designer, EdgeLocation edgeLocation, ConnectionPointKind invalidType)
{
List<ConnectionPoint> connectionPoints = FlowchartDesigner.GetAllConnectionPoints(designer);
connectionPoints = new List<ConnectionPoint>(connectionPoints.Where<ConnectionPoint>((p) =>
{
return p != null && p.PointType != invalidType && p.AttachedConnectors.Count == 0 && p.EdgeLocation == edgeLocation;
}));
if (connectionPoints.Count > 0)
{
return connectionPoints[connectionPoints.Count / 2];
}
return null;
}
static ConnectionPoint GetClosestConnectionPointNotOfType(ConnectionPoint srcConnectionPoint, List<ConnectionPoint> targetConnectionPoints, ConnectionPointKind illegalConnectionPointKind)
{
double minDist;
List<ConnectionPoint> filteredConnectionPoints = new List<ConnectionPoint>();
foreach (ConnectionPoint connPoint in targetConnectionPoints)
{
if (connPoint.PointType != illegalConnectionPointKind && !connPoint.Equals(srcConnectionPoint) && connPoint.AttachedConnectors.Count == 0)
{
filteredConnectionPoints.Add(connPoint);
}
}
return GetClosestConnectionPoint(srcConnectionPoint, filteredConnectionPoints, out minDist);
}
public ConnectionPoint()
{
pointType = ConnectionPointKind.Default;
attachedConnectors = new List<Connector>();
this.parentDesigner = null;
}
protected ConnectionPointSymbol(ConnectionPointKind kind, string name, Location location, TaskDeclarationSymbol taskDeclaration) : base(name, location) {
Kind = kind;
TaskDeclaration = taskDeclaration;
}
//widthFraction and heightFraction determine the location of the ConnectionPoint on the UIElement.
ConnectionPoint CreateConnectionPoint(UIElement element, double widthFraction, double heightFraction, EdgeLocation location, ConnectionPointKind type)
{
ConnectionPoint connectionPoint = new ConnectionPoint();
connectionPoint.EdgeLocation = location;
connectionPoint.PointType = type;
connectionPoint.ParentDesigner = element;
connectionPoint.IsEnabled = false;
BindingOperations.SetBinding(connectionPoint, ConnectionPoint.LocationProperty, GetConnectionPointBinding(element as FrameworkElement, widthFraction, heightFraction));
return connectionPoint;
}
static ConnectionPoint GetClosestConnectionPointNotOfType(ConnectionPoint srcConnectionPoint, List <ConnectionPoint> targetConnectionPoints, ConnectionPointKind illegalConnectionPointKind)
{
double minDist;
List <ConnectionPoint> filteredConnectionPoints = new List <ConnectionPoint>();
foreach (ConnectionPoint connPoint in targetConnectionPoints)
{
if (connPoint.PointType != illegalConnectionPointKind && !connPoint.Equals(srcConnectionPoint) && connPoint.AttachedConnectors.Count == 0)
{
filteredConnectionPoints.Add(connPoint);
}
}
return(GetClosestConnectionPoint(srcConnectionPoint, filteredConnectionPoints, out minDist));
}
public ConnectionPoint()
{
pointType = ConnectionPointKind.Default;
attachedConnectors = new List <Connector>();
this.parentDesigner = null;
}
private static List <ConnectionPoint> FindCandidatePointsForLink(List <ConnectionPoint> destConnPoints, ConnectionPointKind excludePointType)
{
List <ConnectionPoint> candidateDestConnPoints;
IEnumerable <ConnectionPoint> freeDestConnPoints = destConnPoints.Where(p =>
p.PointType != excludePointType &&
!p.AttachedConnectors.Any());
if (freeDestConnPoints.Any())
{
candidateDestConnPoints = freeDestConnPoints.ToList();
}
else
{
IEnumerable <ConnectionPoint> availablePoints =
destConnPoints.Where(
p => p.PointType != excludePointType &&
p.AttachedConnectors.Any(connector => FreeFormPanel.GetDestinationConnectionPoint(connector).Equals(p)));
candidateDestConnPoints = availablePoints.Any() ? availablePoints.ToList() : destConnPoints;
}
return(candidateDestConnPoints);
}
ConnectionPoint FindClosestConnectionPointNotOfType(ConnectionPoint srcConnectionPoint, List <ConnectionPoint> targetConnectionPoints, ConnectionPointKind illegalConnectionPointKind)
{
double minDist;
List <ConnectionPoint> filteredConnectionPoints = new List <ConnectionPoint>();
foreach (ConnectionPoint connPoint in targetConnectionPoints)
{
if (connPoint != null && connPoint.PointType != illegalConnectionPointKind && !connPoint.Equals(srcConnectionPoint))
{
filteredConnectionPoints.Add(connPoint);
}
}
return(FindClosestConnectionPoint(srcConnectionPoint, filteredConnectionPoints, out minDist));
}
protected ConnectionPointSymbol(ConnectionPointKind kind, string name, Location location): base(name, location) {
Kind = kind;
}
