public static PathPointKind GetPointKind(PathSegment segment, int index)
{
if (index < 0 || index >= PathSegmentUtilities.GetPointCount(segment))
{
throw new ArgumentOutOfRangeException("index", (object)index, "Index must be between zero and the segment point count.");
}
if (segment is ArcSegment)
{
return(PathPointKind.Arc);
}
if (segment is LineSegment || segment is PolyLineSegment)
{
return(PathPointKind.Line);
}
if (segment is QuadraticBezierSegment || segment is PolyQuadraticBezierSegment)
{
return(index % 2 == 1 ? PathPointKind.Quadratic : PathPointKind.BezierHandle);
}
if (segment is BezierSegment || segment is PolyBezierSegment)
{
return(index % 3 == 2 ? PathPointKind.Cubic : PathPointKind.BezierHandle);
}
throw new ArgumentException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, ExceptionStringTable.UnknownPathSegmentType, new object[1]
{
(object)segment.GetType().Name
}), "segment");
}
public static void GetSegmentFromPointIndex(PathFigure pathFigure, int pointIndex, out int segmentIndex, out int segmentPointIndex)
{
PathSegmentCollection segments = pathFigure.Segments;
if (pointIndex == 0)
{
if (pathFigure.IsClosed && PathFigureUtilities.IsCloseSegmentDegenerate(pathFigure))
{
segmentIndex = pathFigure.Segments.Count - 1;
segmentPointIndex = PathSegmentUtilities.GetPointCount(segments[segmentIndex]) - 1;
}
else
{
segmentIndex = 0;
segmentPointIndex = -1;
}
}
else
{
segmentIndex = 0;
segmentPointIndex = 0;
int num = 1;
int pointCount = PathSegmentUtilities.GetPointCount(segments[segmentIndex]);
while (pointCount < pointIndex)
{
num = pointCount + 1;
pointCount += PathSegmentUtilities.GetPointCount(segments[++segmentIndex]);
}
segmentPointIndex = pointIndex - num;
}
}
public static void SetLastPoint(PathSegment segment, Point point)
{
if (PathSegmentUtilities.IsEmpty(segment))
{
throw new ArgumentException(ExceptionStringTable.CannotGetLastPointFromAnEmptySegment, "segment");
}
PathSegmentUtilities.SetPoint(segment, PathSegmentUtilities.GetPointCount(segment) - 1, point);
}
public static int PointCount(PathFigure figure)
{
int num = 1;
foreach (PathSegment segment in figure.Segments)
{
num += PathSegmentUtilities.GetPointCount(segment);
}
if (PathFigureUtilities.IsClosed(figure) && PathFigureUtilities.IsCloseSegmentDegenerate(figure))
{
--num;
}
return(num);
}
public static bool IsEmpty(PathSegment segment)
{
return(PathSegmentUtilities.GetPointCount(segment) == 0);
}
public static void SetPoint(PathSegment segment, int index, Point point)
{
if (index < 0 || index >= PathSegmentUtilities.GetPointCount(segment))
{
throw new ArgumentOutOfRangeException("index", (object)index, "Index must be between zero and the segment point count.");
}
ArcSegment arcSegment;
if ((arcSegment = segment as ArcSegment) != null)
{
arcSegment.Point = point;
}
else
{
LineSegment lineSegment;
if ((lineSegment = segment as LineSegment) != null)
{
lineSegment.Point = point;
}
else
{
QuadraticBezierSegment quadraticBezierSegment1;
if ((quadraticBezierSegment1 = segment as QuadraticBezierSegment) != null)
{
if (index == 0)
{
quadraticBezierSegment1.Point1 = point;
}
else
{
quadraticBezierSegment1.Point2 = point;
}
}
else
{
BezierSegment bezierSegment;
if ((bezierSegment = segment as BezierSegment) != null)
{
if (index == 0)
{
bezierSegment.Point1 = point;
}
else if (index == 1)
{
bezierSegment.Point2 = point;
}
else
{
bezierSegment.Point3 = point;
}
}
else
{
PolyLineSegment polyLineSegment;
if ((polyLineSegment = segment as PolyLineSegment) != null)
{
polyLineSegment.Points[index] = point;
}
else
{
PolyQuadraticBezierSegment quadraticBezierSegment2;
if ((quadraticBezierSegment2 = segment as PolyQuadraticBezierSegment) != null)
{
quadraticBezierSegment2.Points[index] = point;
}
else
{
PolyBezierSegment polyBezierSegment;
if ((polyBezierSegment = segment as PolyBezierSegment) != null)
{
polyBezierSegment.Points[index] = point;
}
else
{
throw new ArgumentException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, ExceptionStringTable.UnknownPathSegmentType, new object[1]
{
(object)segment.GetType().Name
}), "segment");
}
}
}
}
}
}
}
}
