private static Point?EscapeProcessII(CoverSet coverSet, Orientation orientation, ref List <Point> LeA, ref List <ConnectorSegment> LhA, ref List <ConnectorSegment> LvA, ref List <ConnectorSegment> LhB, ref List <ConnectorSegment> LvB, Point Z, Point R, Size margin, out bool intersectionFlag, out ConnectorSegment intersectionSegmentA, out ConnectorSegment intersectionSegmentB)
{
intersectionFlag = false;
intersectionSegmentA = null;
intersectionSegmentB = null;
ConnectorSegment escapeLine = ConnectorSegment.SegmentFromLeftToRightCover(coverSet, R);
ConnectorSegment segment2 = ConnectorSegment.SegmentFromBottomToTopCover(coverSet, R);
for (int i = 0; i < LvB.Count; i++)
{
ConnectorSegment segment = LvB[i];
Point? nullable = escapeLine.Intersect(segment);
if (nullable.HasValue)
{
intersectionFlag = true;
intersectionSegmentA = escapeLine;
intersectionSegmentB = segment;
LeA.Add(R);
return(nullable);
}
}
for (int j = 0; j < LhB.Count; j++)
{
ConnectorSegment segment4 = LhB[j];
Point? nullable2 = segment2.Intersect(segment4);
if (nullable2.HasValue)
{
intersectionFlag = true;
intersectionSegmentA = segment2;
intersectionSegmentB = segment4;
LeA.Add(R);
return(nullable2);
}
}
Point?nullable3 = null;
if (orientation == Orientation.Horizontal)
{
nullable3 = EscapeProcessI(coverSet, R, segment2, Orientation.Horizontal, margin);
if (nullable3.HasValue)
{
LvA.Add(segment2);
LeA.Add(R);
return(nullable3);
}
nullable3 = EscapeProcessI(coverSet, R, escapeLine, Orientation.Vertical, margin);
if (nullable3.HasValue)
{
LhA.Add(escapeLine);
LeA.Add(R);
return(nullable3);
}
}
else
{
nullable3 = EscapeProcessI(coverSet, R, escapeLine, Orientation.Vertical, margin);
if (nullable3.HasValue)
{
LhA.Add(escapeLine);
LeA.Add(R);
return(nullable3);
}
nullable3 = EscapeProcessI(coverSet, R, segment2, Orientation.Horizontal, margin);
if (nullable3.HasValue)
{
LvA.Add(segment2);
LeA.Add(R);
return(nullable3);
}
}
return(null);
}
private static Point?EscapeAlgorithm(CoverSet coverSet, Point Z, Point targetPoint, ref List <Point> LeA, ref List <ConnectorSegment> LhA, ref List <ConnectorSegment> LvA, ref List <ConnectorSegment> LhB, ref List <ConnectorSegment> LvB, ref Orientation orientationA, out ConnectorSegment intersectionSegmentA, out ConnectorSegment intersectionSegmentB, Size margin, ref bool noEscapeA)
{
bool flag2;
bool flag3;
bool flag4;
bool flag5;
Point?nullable = null;
intersectionSegmentA = null;
intersectionSegmentB = null;
ConnectorSegment cover = coverSet.GetCover(Z, DesignerEdges.Left);
ConnectorSegment segment2 = coverSet.GetCover(Z, DesignerEdges.Right);
ConnectorSegment segment3 = coverSet.GetCover(Z, DesignerEdges.Bottom);
ConnectorSegment segment4 = coverSet.GetCover(Z, DesignerEdges.Top);
ConnectorSegment item = ConnectorSegment.SegmentFromLeftToRightCover(coverSet, Z);
LhA.Add(item);
ConnectorSegment segment6 = ConnectorSegment.SegmentFromBottomToTopCover(coverSet, Z);
LvA.Add(segment6);
for (int i = 0; i < LvB.Count; i++)
{
ConnectorSegment segment = LvB[i];
nullable = item.Intersect(segment);
if (nullable.HasValue)
{
intersectionSegmentA = item;
intersectionSegmentB = segment;
return(nullable);
}
}
for (int j = 0; j < LhB.Count; j++)
{
ConnectorSegment segment8 = LhB[j];
nullable = segment6.Intersect(segment8);
if (nullable.HasValue)
{
intersectionSegmentA = segment6;
intersectionSegmentB = segment8;
return(nullable);
}
}
Point?nullable2 = EscapeProcessI(coverSet, Z, segment6, Orientation.Horizontal, margin);
if (nullable2.HasValue)
{
orientationA = Orientation.Vertical;
LeA.Add(nullable2.Value);
return(null);
}
nullable2 = EscapeProcessI(coverSet, Z, item, Orientation.Vertical, margin);
if (nullable2.HasValue)
{
orientationA = Orientation.Horizontal;
LeA.Add(nullable2.Value);
return(null);
}
bool intersectionFlag = false;
Point empty = Point.Empty;
Point r = Point.Empty;
Point point3 = Point.Empty;
Point point4 = Point.Empty;
if (segment4 != null)
{
empty = new Point(Z.X, segment4.A.Y);
}
if (segment2 != null)
{
r = new Point(segment2.A.X, Z.Y);
}
if (segment3 != null)
{
point3 = new Point(Z.X, segment3.A.Y);
}
if (cover != null)
{
point4 = new Point(cover.A.X, Z.Y);
}
do
{
flag2 = flag3 = flag4 = flag5 = false;
if (segment4 != null)
{
empty.Y -= margin.Height;
if (empty.Y > Z.Y)
{
flag2 = true;
Point?nullable3 = EscapeProcessII(coverSet, Orientation.Vertical, ref LeA, ref LhA, ref LvA, ref LhB, ref LvB, Z, empty, margin, out intersectionFlag, out intersectionSegmentA, out intersectionSegmentB);
if (nullable3.HasValue)
{
LvA.Add(segment6);
if (intersectionFlag)
{
return(nullable3);
}
orientationA = Orientation.Horizontal;
coverSet.AddUsedEscapeLine(new ConnectorSegment(Z, empty));
coverSet.AddUsedEscapeLine(new ConnectorSegment(empty, nullable3.Value));
LeA.Add(nullable3.Value);
return(null);
}
}
}
if (segment2 != null)
{
r.X -= margin.Width;
if (r.X > Z.X)
{
flag3 = true;
Point?nullable4 = EscapeProcessII(coverSet, Orientation.Horizontal, ref LeA, ref LhA, ref LvA, ref LhB, ref LvB, Z, r, margin, out intersectionFlag, out intersectionSegmentA, out intersectionSegmentB);
if (nullable4.HasValue)
{
LhA.Add(item);
if (intersectionFlag)
{
return(nullable4);
}
orientationA = Orientation.Vertical;
coverSet.AddUsedEscapeLine(new ConnectorSegment(Z, r));
coverSet.AddUsedEscapeLine(new ConnectorSegment(r, nullable4.Value));
LeA.Add(nullable4.Value);
return(null);
}
}
}
if (segment3 != null)
{
point3.Y += margin.Height;
if (point3.Y < Z.Y)
{
flag4 = true;
Point?nullable5 = EscapeProcessII(coverSet, Orientation.Vertical, ref LeA, ref LhA, ref LvA, ref LhB, ref LvB, Z, point3, margin, out intersectionFlag, out intersectionSegmentA, out intersectionSegmentB);
if (nullable5.HasValue)
{
LvA.Add(segment6);
if (intersectionFlag)
{
return(nullable5);
}
orientationA = Orientation.Horizontal;
coverSet.AddUsedEscapeLine(new ConnectorSegment(Z, point3));
coverSet.AddUsedEscapeLine(new ConnectorSegment(point3, nullable5.Value));
LeA.Add(nullable5.Value);
return(null);
}
}
}
if (cover != null)
{
point4.X += margin.Width;
if (point4.X < Z.X)
{
flag5 = true;
Point?nullable6 = EscapeProcessII(coverSet, Orientation.Horizontal, ref LeA, ref LhA, ref LvA, ref LhB, ref LvB, Z, point4, margin, out intersectionFlag, out intersectionSegmentA, out intersectionSegmentB);
if (nullable6.HasValue)
{
LhA.Add(item);
if (intersectionFlag)
{
return(nullable6);
}
orientationA = Orientation.Vertical;
coverSet.AddUsedEscapeLine(new ConnectorSegment(Z, point4));
coverSet.AddUsedEscapeLine(new ConnectorSegment(point4, nullable6.Value));
LeA.Add(nullable6.Value);
return(null);
}
}
}
}while ((flag2 || flag3) || (flag4 || flag5));
noEscapeA = true;
return(null);
}