public static PathFigure Copy(PathFigure original, Transform transformToApply)
{
PathFigure pathFigure = new PathFigure();
if (pathFigure.IsFilled != original.IsFilled)
{
pathFigure.IsFilled = original.IsFilled;
}
if (pathFigure.IsClosed != original.IsClosed)
{
pathFigure.IsClosed = original.IsClosed;
}
int num = (int)original.GetValue(PathFigureUtilities.FigureMappingProperty);
pathFigure.SetValue(PathFigureUtilities.FigureMappingProperty, (object)num);
pathFigure.StartPoint = transformToApply == null ? original.StartPoint : original.StartPoint * transformToApply.Value;
foreach (PathSegment pathSegment in original.Segments)
{
PathSegment segment = pathSegment.CloneCurrentValue();
if (transformToApply != null)
{
PathSegmentUtilities.TransformSegment(segment, transformToApply);
}
pathFigure.Segments.Add(segment);
}
return(pathFigure);
}
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 Point GetPoint(PathFigure pathFigure, int index, bool correspondingPoint)
{
if (index == 0)
{
return(pathFigure.StartPoint);
}
PathSegmentCollection segments = pathFigure.Segments;
int segmentIndex;
int segmentPointIndex;
PathFigureUtilities.GetSegmentFromPointIndex(pathFigure, index, out segmentIndex, out segmentPointIndex);
PathSegment segment = segments[segmentIndex];
if (correspondingPoint && segment is BezierSegment)
{
if (segmentPointIndex == 1)
{
segmentPointIndex = 2;
}
else if (segmentPointIndex == 0)
{
if (segmentIndex == 0)
{
return(pathFigure.StartPoint);
}
if (index > 0)
{
PathFigureUtilities.GetSegmentFromPointIndex(pathFigure, index - 1, out segmentIndex, out segmentPointIndex);
segment = segments[segmentIndex];
}
}
}
return(PathSegmentUtilities.GetPoint(segment, segmentPointIndex));
}
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 LineSegment CreateLineSegment(Point point, bool isStroked, bool?isSmoothJoin)
{
LineSegment lineSegment = new LineSegment();
lineSegment.Point = point;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)lineSegment, isStroked, isSmoothJoin);
return(lineSegment);
}
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 QuadraticBezierSegment CreateQuadraticBezierSegment(Point point1, Point point2, bool isStroked, bool?isSmoothJoin)
{
QuadraticBezierSegment quadraticBezierSegment = new QuadraticBezierSegment();
quadraticBezierSegment.Point1 = point1;
quadraticBezierSegment.Point2 = point2;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)quadraticBezierSegment, isStroked, isSmoothJoin);
return(quadraticBezierSegment);
}
public static bool IsCloseSegmentDegenerate(PathFigure figure)
{
if (figure.Segments.Count == 0)
{
return(false);
}
Point lastPoint = PathSegmentUtilities.GetLastPoint(figure.Segments[figure.Segments.Count - 1]);
return(VectorUtilities.ArePathPointsVeryClose(PathFigureUtilities.FirstPoint(figure), lastPoint));
}
public static BezierSegment CreateBezierSegment(Point point1, Point point2, Point point3, bool isStroked, bool?isSmoothJoin)
{
BezierSegment bezierSegment = new BezierSegment();
bezierSegment.Point1 = point1;
bezierSegment.Point2 = point2;
bezierSegment.Point3 = point3;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)bezierSegment, isStroked, isSmoothJoin);
return(bezierSegment);
}
public static bool EnsureOnlySingleSegmentsInFigure(PathFigure original)
{
bool flag = false;
PathSegmentCollection segmentCollection = new PathSegmentCollection();
foreach (PathSegment pathSegment in original.Segments)
{
PolyLineSegment polyLineSegment = pathSegment as PolyLineSegment;
PolyQuadraticBezierSegment quadraticBezierSegment1 = pathSegment as PolyQuadraticBezierSegment;
PolyBezierSegment polyBezierSegment = pathSegment as PolyBezierSegment;
if (polyLineSegment != null)
{
foreach (Point point in polyLineSegment.Points)
{
LineSegment lineSegment = PathSegmentUtilities.CreateLineSegment(point, polyLineSegment.IsStroked, new bool?(polyLineSegment.IsSmoothJoin));
segmentCollection.Add((PathSegment)lineSegment);
}
flag = true;
}
else if (quadraticBezierSegment1 != null)
{
int index = 0;
while (index < quadraticBezierSegment1.Points.Count - 1)
{
QuadraticBezierSegment quadraticBezierSegment2 = PathSegmentUtilities.CreateQuadraticBezierSegment(quadraticBezierSegment1.Points[index], quadraticBezierSegment1.Points[index + 1], quadraticBezierSegment1.IsStroked, new bool?(quadraticBezierSegment1.IsSmoothJoin));
segmentCollection.Add((PathSegment)quadraticBezierSegment2);
index += 2;
}
flag = true;
}
else if (polyBezierSegment != null)
{
int index = 0;
while (index < polyBezierSegment.Points.Count - 2)
{
BezierSegment bezierSegment = PathSegmentUtilities.CreateBezierSegment(polyBezierSegment.Points[index], polyBezierSegment.Points[index + 1], polyBezierSegment.Points[index + 2], polyBezierSegment.IsStroked, new bool?(polyBezierSegment.IsSmoothJoin));
segmentCollection.Add((PathSegment)bezierSegment);
index += 3;
}
flag = true;
}
else
{
segmentCollection.Add(pathSegment);
}
}
if (flag)
{
original.Segments = segmentCollection;
}
return(flag);
}
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 void SetPoint(PathFigure pathFigure, int pointIndex, Point point)
{
if (pointIndex == 0 || pointIndex == PathFigureUtilities.PointCount(pathFigure) && PathFigureUtilities.IsClosed(pathFigure) && !PathFigureUtilities.IsCloseSegmentDegenerate(pathFigure))
{
pathFigure.StartPoint = point;
}
else
{
PathSegmentCollection segments = pathFigure.Segments;
int segmentIndex;
int segmentPointIndex;
PathFigureUtilities.GetSegmentFromPointIndex(pathFigure, pointIndex, out segmentIndex, out segmentPointIndex);
PathSegmentUtilities.SetPoint(segments[segmentIndex], segmentPointIndex, point);
}
}
public static BezierSegment CreateBezierSegment(Point point1, Point point2, Point point3, bool isStroked)
{
return(PathSegmentUtilities.CreateBezierSegment(point1, point2, point3, isStroked, new bool?()));
}
public static void TransformSegment(PathSegment segment, Transform transform)
{
if (transform == null)
{
return;
}
Matrix matrix = transform.Value;
if (segment is ArcSegment)
{
throw new NotSupportedException(ExceptionStringTable.ArcSegmentIsNotSupported);
}
LineSegment lineSegment;
if ((lineSegment = segment as LineSegment) != null)
{
lineSegment.Point *= matrix;
}
else
{
QuadraticBezierSegment quadraticBezierSegment1;
if ((quadraticBezierSegment1 = segment as QuadraticBezierSegment) != null)
{
quadraticBezierSegment1.Point1 *= matrix;
quadraticBezierSegment1.Point2 *= matrix;
}
else
{
BezierSegment bezierSegment;
if ((bezierSegment = segment as BezierSegment) != null)
{
bezierSegment.Point1 *= matrix;
bezierSegment.Point2 *= matrix;
bezierSegment.Point3 *= matrix;
}
else
{
PolyLineSegment polyLineSegment;
if ((polyLineSegment = segment as PolyLineSegment) != null)
{
PathSegmentUtilities.TransformPoints(polyLineSegment.Points, matrix);
}
else
{
PolyQuadraticBezierSegment quadraticBezierSegment2;
if ((quadraticBezierSegment2 = segment as PolyQuadraticBezierSegment) != null)
{
PathSegmentUtilities.TransformPoints(quadraticBezierSegment2.Points, matrix);
}
else
{
PolyBezierSegment polyBezierSegment;
if ((polyBezierSegment = segment as PolyBezierSegment) != null)
{
PathSegmentUtilities.TransformPoints(polyBezierSegment.Points, matrix);
}
else
{
throw new ArgumentException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, ExceptionStringTable.UnknownPathSegmentType, new object[1]
{
(object)segment.GetType().Name
}), "segment");
}
}
}
}
}
}
}
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");
}
}
}
}
}
}
}
}
public static LineSegment CreateLineSegment(Point point, bool isStroked)
{
return(PathSegmentUtilities.CreateLineSegment(point, isStroked, new bool?()));
}
public static bool IsEmpty(PathSegment segment)
{
return(PathSegmentUtilities.GetPointCount(segment) == 0);
}
public static bool CollapseSingleSegmentsToPolySegments(PathFigure original)
{
bool flag = false;
PathSegmentCollection segmentCollection = new PathSegmentCollection();
for (int index = 0; index < original.Segments.Count; ++index)
{
LineSegment lineSegment = original.Segments[index] as LineSegment;
QuadraticBezierSegment quadraticBezierSegment1 = original.Segments[index] as QuadraticBezierSegment;
BezierSegment bezierSegment1 = original.Segments[index] as BezierSegment;
int num = index;
if (lineSegment != null)
{
PointCollection pointCollection = (PointCollection)null;
for (; index + 1 < original.Segments.Count && original.Segments[index + 1] is LineSegment && !PathFigureUtilities.IsSignificantChangeBetweenSegments((PathSegment)lineSegment, original.Segments[index + 1]); ++index)
{
if (pointCollection == null)
{
pointCollection = new PointCollection();
pointCollection.Add(lineSegment.Point);
}
pointCollection.Add(((LineSegment)original.Segments[index + 1]).Point);
}
if (index != num)
{
PolyLineSegment polyLineSegment = new PolyLineSegment();
polyLineSegment.Points = pointCollection;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)polyLineSegment, lineSegment.IsStroked, new bool?(lineSegment.IsSmoothJoin));
segmentCollection.Add((PathSegment)polyLineSegment);
flag = true;
}
else
{
segmentCollection.Add((PathSegment)lineSegment);
}
}
else if (quadraticBezierSegment1 != null)
{
PointCollection pointCollection = (PointCollection)null;
QuadraticBezierSegment quadraticBezierSegment2;
for (; index + 1 < original.Segments.Count && (quadraticBezierSegment2 = original.Segments[index + 1] as QuadraticBezierSegment) != null && !PathFigureUtilities.IsSignificantChangeBetweenSegments((PathSegment)quadraticBezierSegment1, (PathSegment)quadraticBezierSegment2); ++index)
{
if (pointCollection == null)
{
pointCollection = new PointCollection();
pointCollection.Add(quadraticBezierSegment1.Point1);
pointCollection.Add(quadraticBezierSegment1.Point2);
}
pointCollection.Add(quadraticBezierSegment2.Point1);
pointCollection.Add(quadraticBezierSegment2.Point2);
}
if (index != num)
{
PolyQuadraticBezierSegment quadraticBezierSegment3 = new PolyQuadraticBezierSegment();
quadraticBezierSegment3.Points = pointCollection;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)quadraticBezierSegment3, quadraticBezierSegment1.IsStroked, new bool?(quadraticBezierSegment1.IsSmoothJoin));
segmentCollection.Add((PathSegment)quadraticBezierSegment3);
flag = true;
}
else
{
segmentCollection.Add((PathSegment)quadraticBezierSegment1);
}
}
else if (bezierSegment1 != null)
{
PointCollection pointCollection = (PointCollection)null;
BezierSegment bezierSegment2;
for (; index + 1 < original.Segments.Count && (bezierSegment2 = original.Segments[index + 1] as BezierSegment) != null && !PathFigureUtilities.IsSignificantChangeBetweenSegments((PathSegment)bezierSegment1, (PathSegment)bezierSegment2); ++index)
{
if (pointCollection == null)
{
pointCollection = new PointCollection();
pointCollection.Add(bezierSegment1.Point1);
pointCollection.Add(bezierSegment1.Point2);
pointCollection.Add(bezierSegment1.Point3);
}
pointCollection.Add(bezierSegment2.Point1);
pointCollection.Add(bezierSegment2.Point2);
pointCollection.Add(bezierSegment2.Point3);
}
if (index != num)
{
PolyBezierSegment polyBezierSegment = new PolyBezierSegment();
polyBezierSegment.Points = pointCollection;
PathSegmentUtilities.SetStrokeAndJoinOnSegment((PathSegment)polyBezierSegment, bezierSegment1.IsStroked, new bool?(bezierSegment1.IsSmoothJoin));
segmentCollection.Add((PathSegment)polyBezierSegment);
flag = true;
}
else
{
segmentCollection.Add((PathSegment)bezierSegment1);
}
}
else
{
segmentCollection.Add(original.Segments[index]);
}
}
if (flag)
{
original.Segments = segmentCollection;
}
return(flag);
}
