public static Point[] Route(IServiceProvider serviceProvider, object source, object target, ICollection <Rectangle> userDefinedRoutingObstacles)
{
List <Rectangle> list;
List <Point> list2;
List <Point> list3;
GetRoutingObstacles(serviceProvider, source, target, out list, out list2, out list3);
if (userDefinedRoutingObstacles != null)
{
list.AddRange(userDefinedRoutingObstacles);
}
ActivityDesigner safeRootDesigner = ActivityDesigner.GetSafeRootDesigner(serviceProvider);
AmbientTheme ambientTheme = WorkflowTheme.CurrentTheme.AmbientTheme;
Point begin = (source is ConnectionPoint) ? ((ConnectionPoint)source).Location : ((Point)source);
Point end = (target is ConnectionPoint) ? ((ConnectionPoint)target).Location : ((Point)target);
Point[] segments = ConnectorRouter.Route(begin, end, new Size(2 * ambientTheme.Margin.Width, 2 * ambientTheme.Margin.Height), safeRootDesigner.Bounds, list.ToArray(), list2.ToArray(), list3.ToArray());
if (!AreAllSegmentsVerticalOrHorizontal(segments))
{
segments = ConnectorRouter.Route(begin, end, ambientTheme.Margin, safeRootDesigner.Bounds, new Rectangle[0], list2.ToArray(), new Point[0]);
}
if (!AreAllSegmentsVerticalOrHorizontal(segments))
{
Point point3 = (DesignerGeometryHelper.SlopeOfLineSegment(begin, end) < 1f) ? new Point(end.X, begin.Y) : new Point(begin.X, end.Y);
segments = new Point[] { begin, point3, end };
}
return(segments);
}
private void UpdateEditPoints(Point newPoint)
{
if (((this.editPoints.Count >= 2) && (this.editPoints[0].Type == EditPoint.EditPointTypes.ConnectionEditPoint)) && (this.editPoints[this.editPoints.Count - 1].Type == EditPoint.EditPointTypes.ConnectionEditPoint))
{
this.RemoveEditPoints(EditPoint.EditPointTypes.MidSegmentEditPoint);
if (this.activeEditPoint != null)
{
int index = this.editPoints.IndexOf(this.activeEditPoint);
EditPoint point = (index > 0) ? this.editPoints[index - 1] : null;
EditPoint point2 = (index < (this.editPoints.Count - 1)) ? this.editPoints[index + 1] : null;
if ((point != null) && (point.Type == EditPoint.EditPointTypes.ConnectionEditPoint))
{
Orientation orientation = (Math.Abs(DesignerGeometryHelper.SlopeOfLineSegment(point.Location, this.activeEditPoint.Location)) < 1f) ? Orientation.Horizontal : Orientation.Vertical;
int num3 = Convert.ToInt32(DesignerGeometryHelper.DistanceBetweenPoints(point.Location, (point2 != null) ? point2.Location : this.activeEditPoint.Location)) / 4;
if (orientation == Orientation.Horizontal)
{
num3 *= (point.Location.X < this.activeEditPoint.Location.X) ? 1 : -1;
}
else
{
num3 *= (point.Location.Y < this.activeEditPoint.Location.X) ? 1 : -1;
}
index = this.editPoints.IndexOf(this.activeEditPoint);
Point point3 = (orientation == Orientation.Horizontal) ? new Point(point.Location.X + num3, point.Location.Y) : new Point(point.Location.X, point.Location.Y + num3);
point = new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, point3);
this.editPoints.InsertRange(index, new EditPoint[] { new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, point3), point });
}
if ((point2 != null) && (point2.Type == EditPoint.EditPointTypes.ConnectionEditPoint))
{
Orientation orientation2 = (Math.Abs(DesignerGeometryHelper.SlopeOfLineSegment(this.activeEditPoint.Location, point2.Location)) < 1f) ? Orientation.Horizontal : Orientation.Vertical;
int num5 = Convert.ToInt32(DesignerGeometryHelper.DistanceBetweenPoints((point != null) ? point.Location : this.activeEditPoint.Location, point2.Location)) / 4;
if (orientation2 == Orientation.Horizontal)
{
num5 *= (this.activeEditPoint.Location.X < point2.Location.X) ? -1 : 1;
}
else
{
num5 *= (this.activeEditPoint.Location.Y < point2.Location.Y) ? -1 : 1;
}
index = this.editPoints.IndexOf(this.activeEditPoint);
Point point4 = (orientation2 == Orientation.Horizontal) ? new Point(point2.Location.X + num5, point2.Location.Y) : new Point(point2.Location.X, point2.Location.Y + num5);
point2 = new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, point4);
this.editPoints.InsertRange(index + 1, new EditPoint[] { point2, new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, point4) });
}
if (this.activeEditPoint.Type == EditPoint.EditPointTypes.ConnectionEditPoint)
{
this.activeEditPoint.Location = newPoint;
this.RemoveEditPoints(EditPoint.EditPointTypes.MultiSegmentEditPoint);
object source = null;
object target = null;
if (this.activeEditPoint.EditedConnectionPoint.Equals(this.Target))
{
target = newPoint;
source = this.Source;
}
else
{
source = newPoint;
target = this.Target;
}
int num6 = (this.editPoints.Count == 2) ? 1 : 0;
List <EditPoint> list = new List <EditPoint>();
Point[] pointArray = ActivityDesignerConnectorRouter.Route(this.serviceProvider, source, target, this.editedConnector.ExcludedRoutingRectangles);
for (int i = num6; i < (pointArray.Length - num6); i++)
{
list.Add(new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, pointArray[i]));
}
this.editPoints.InsertRange(1, list.ToArray());
}
else if (this.activeEditPoint.Type == EditPoint.EditPointTypes.MultiSegmentEditPoint)
{
if (((point != null) && (point.Type != EditPoint.EditPointTypes.ConnectionEditPoint)) && ((point2 != null) && (point2.Type != EditPoint.EditPointTypes.ConnectionEditPoint)))
{
Orientation orientation3 = (Math.Abs(DesignerGeometryHelper.SlopeOfLineSegment(point.Location, this.activeEditPoint.Location)) < 1f) ? Orientation.Horizontal : Orientation.Vertical;
point.Location = (orientation3 == Orientation.Horizontal) ? new Point(point.Location.X, newPoint.Y) : new Point(newPoint.X, point.Location.Y);
orientation3 = (Math.Abs(DesignerGeometryHelper.SlopeOfLineSegment(this.activeEditPoint.Location, point2.Location)) < 1f) ? Orientation.Horizontal : Orientation.Vertical;
point2.Location = (orientation3 == Orientation.Horizontal) ? new Point(point2.Location.X, newPoint.Y) : new Point(newPoint.X, point2.Location.Y);
this.activeEditPoint.Location = newPoint;
}
}
else if ((((this.activeEditPoint.Type == EditPoint.EditPointTypes.MidSegmentEditPoint) && (point != null)) && ((point.Type != EditPoint.EditPointTypes.ConnectionEditPoint) && (point2 != null))) && (point2.Type != EditPoint.EditPointTypes.ConnectionEditPoint))
{
if (((Math.Abs(DesignerGeometryHelper.SlopeOfLineSegment(point.Location, point2.Location)) < 1f) ? 0 : 1) == 0)
{
point.Location = new Point(point.Location.X, newPoint.Y);
point2.Location = new Point(point2.Location.X, newPoint.Y);
this.activeEditPoint.Location = new Point(this.activeEditPoint.Location.X, newPoint.Y);
}
else
{
point.Location = new Point(newPoint.X, point.Location.Y);
point2.Location = new Point(newPoint.X, point2.Location.Y);
this.activeEditPoint.Location = new Point(newPoint.X, this.activeEditPoint.Location.Y);
}
}
}
this.RemoveCoincidingEditPoints();
this.AddEditPoints(EditPoint.EditPointTypes.MidSegmentEditPoint);
this.ValidateEditPoints();
}
}
private void RemoveCoincidingEditPoints()
{
if (((this.editPoints.Count >= 2) && (this.editPoints[0].Type == EditPoint.EditPointTypes.ConnectionEditPoint)) && ((this.editPoints[this.editPoints.Count - 1].Type == EditPoint.EditPointTypes.ConnectionEditPoint) && ((this.activeEditPoint == null) || (this.activeEditPoint.Type != EditPoint.EditPointTypes.ConnectionEditPoint))))
{
this.RemoveEditPoints(EditPoint.EditPointTypes.MidSegmentEditPoint);
List <EditPoint> list = new List <EditPoint>();
for (int i = 0; i < this.editPoints.Count; i++)
{
if ((((this.editPoints[i].Type != EditPoint.EditPointTypes.MultiSegmentEditPoint) || (this.editPoints[i] == this.activeEditPoint)) || ((i > 0) && (this.editPoints[i - 1].Type == EditPoint.EditPointTypes.MidSegmentEditPoint))) || ((i < (this.editPoints.Count - 1)) && (this.editPoints[i + 1].Type == EditPoint.EditPointTypes.MidSegmentEditPoint)))
{
list.Add(this.editPoints[i]);
}
}
for (int j = 1; j < (this.editPoints.Count - 1); j++)
{
EditPoint point = this.editPoints[j - 1];
EditPoint item = this.editPoints[j];
EditPoint point3 = this.editPoints[j + 1];
if (!list.Contains(item))
{
Point[] segments = new Point[] { point.Location, item.Location };
double num3 = DesignerGeometryHelper.DistanceOfLineSegments(segments);
if (((num3 < item.Bounds.Width) || (num3 < item.Bounds.Height)) && (point3.Type == EditPoint.EditPointTypes.MultiSegmentEditPoint))
{
float num4 = DesignerGeometryHelper.SlopeOfLineSegment(item.Location, point3.Location);
point3.Location = (num4 < 1f) ? new Point(point3.Location.X, point.Location.Y) : new Point(point.Location.X, point3.Location.Y);
this.editPoints.Remove(item);
j--;
}
else
{
Point[] pointArray2 = new Point[] { item.Location, point3.Location };
num3 = DesignerGeometryHelper.DistanceOfLineSegments(pointArray2);
if (((num3 < item.Bounds.Width) || (num3 < item.Bounds.Height)) && (point.Type == EditPoint.EditPointTypes.MultiSegmentEditPoint))
{
float num5 = DesignerGeometryHelper.SlopeOfLineSegment(point.Location, item.Location);
point.Location = (num5 < 1f) ? new Point(point.Location.X, point3.Location.Y) : new Point(point3.Location.X, point.Location.Y);
this.editPoints.Remove(item);
j--;
}
}
}
}
for (int k = 1; k < (this.editPoints.Count - 1); k++)
{
EditPoint point4 = this.editPoints[k];
EditPoint point5 = this.editPoints[k - 1];
EditPoint point6 = this.editPoints[k + 1];
if (!list.Contains(point4))
{
float num7 = DesignerGeometryHelper.SlopeOfLineSegment(point5.Location, point4.Location);
float num8 = DesignerGeometryHelper.SlopeOfLineSegment(point4.Location, point6.Location);
if (Math.Abs(num7) == Math.Abs(num8))
{
this.editPoints.Remove(point4);
k--;
}
}
}
for (int m = 0; m < (this.editPoints.Count - 1); m++)
{
EditPoint point7 = this.editPoints[m];
EditPoint point8 = this.editPoints[m + 1];
float num10 = DesignerGeometryHelper.SlopeOfLineSegment(point7.Location, point8.Location);
if ((num10 != 0f) && (num10 != float.MaxValue))
{
Point point9 = (num10 < 1f) ? new Point(point8.Location.X, point7.Location.Y) : new Point(point7.Location.X, point8.Location.Y);
this.editPoints.Insert(m + 1, new EditPoint(this, EditPoint.EditPointTypes.MultiSegmentEditPoint, point9));
}
}
}
}