private double CalculateClipLocation(ContourSegment hitSegment, StrokeNodeData beginNode, Vector spineVector, double pressureDelta)
{
double num = StrokeFIndices.BeforeFirst;
if (hitSegment.IsArc || WhereIsVectorAboutVector(beginNode.Position - hitSegment.Begin, hitSegment.Vector) == HitResult.Left)
{
num = (hitSegment.IsArc ? ClipTestArc(spineVector, pressureDelta, (hitSegment.Begin + hitSegment.Radius - beginNode.Position) / beginNode.PressureFactor, hitSegment.Radius / beginNode.PressureFactor) : ClipTest(spineVector, pressureDelta, (hitSegment.Begin - beginNode.Position) / beginNode.PressureFactor, (hitSegment.End - beginNode.Position) / beginNode.PressureFactor));
if (num == StrokeFIndices.AfterLast)
{
num = StrokeFIndices.BeforeFirst;
}
}
return(num);
}
private bool HitTestStrokeNodes(ContourSegment hitSegment, StrokeNodeData beginNode, StrokeNodeData endNode, ref StrokeFIndices result)
{
bool flag = false;
for (int i = 0; i < 2; i++)
{
Point position;
double num;
if (i == 0)
{
if (flag && DoubleUtil.AreClose(result.BeginFIndex, StrokeFIndices.BeforeFirst))
{
continue;
}
position = beginNode.Position;
num = beginNode.PressureFactor;
}
else
{
if (flag && DoubleUtil.AreClose(result.EndFIndex, StrokeFIndices.AfterLast))
{
continue;
}
position = endNode.Position;
num = endNode.PressureFactor;
}
Vector vector;
Vector vector2;
if (hitSegment.IsArc)
{
vector = hitSegment.Begin - position + hitSegment.Radius;
vector2 = hitSegment.Radius;
}
else
{
vector = hitSegment.Begin - position;
vector2 = vector + hitSegment.Vector;
}
if (num != 1.0)
{
vector /= num;
vector2 /= num;
}
if (!(hitSegment.IsArc ? HitTestPolygonCircle(_vertices, vector, vector2) : HitTestPolygonSegment(_vertices, vector, vector2)))
{
continue;
}
flag = true;
if (i == 0)
{
result.BeginFIndex = StrokeFIndices.BeforeFirst;
if (DoubleUtil.AreClose(result.EndFIndex, StrokeFIndices.AfterLast))
{
break;
}
continue;
}
result.EndFIndex = StrokeFIndices.AfterLast;
if (beginNode.IsEmpty)
{
result.BeginFIndex = StrokeFIndices.BeforeFirst;
break;
}
if (DoubleUtil.AreClose(result.BeginFIndex, StrokeFIndices.BeforeFirst))
{
break;
}
}
return(flag);
}
