private static PathGeometry ExtendPathGeometry(PathGeometry geometry, double exLength)
{
if (geometry.Figures.Count != 1)
{
throw new ArgumentException();
}
PathGeometry geometry2 = (PathGeometry)geometry.Clone();
PointAndTangentDouble pointAtLength = geometry.GetPointAtLength(0.0, flatteningTolerance);
VectorDouble num2 = pointAtLength.Tangent.NormalizeOrZeroCopy();
PointDouble num3 = pointAtLength.Point - ((PointDouble)(num2 * exLength));
geometry2.Figures[0].Segments.Insert(0, new LineSegment(pointAtLength.Point));
geometry2.Figures[0].StartPoint = num3;
PointAndTangentDouble num4 = geometry.GetPointAtLength(double.PositiveInfinity, flatteningTolerance);
VectorDouble num5 = num4.Tangent.NormalizeOrZeroCopy();
PointDouble point = num4.Point + ((PointDouble)(num5 * exLength));
geometry2.Figures[0].Segments.Add(new LineSegment(point));
return(geometry2);
}
private static Geometry CreateStrokedLineGeometry(Geometry lineGeometry, double strokeWidth, LineCap2 startCap, LineCap2 endCap, PaintDotNet.UI.Media.DashStyle dashStyle)
{
Geometry geometry;
Geometry geometry2;
Geometry geometry3;
Geometry geometry4;
Geometry geometry5;
double length = lineGeometry.GetLength(flatteningTolerance);
StrokeStyle strokeStyle = new StrokeStyle {
DashStyle = dashStyle,
LineJoin = PenLineJoin.Round
};
double num2 = 0.0;
switch (startCap)
{
case LineCap2.Flat:
geometry = null;
break;
case LineCap2.Arrow:
geometry = CreateArrowGeometry(5.0, 5.0, strokeWidth, 1.0, false, false).EnsureFrozen <Geometry>();
num2 = 0.5;
break;
case LineCap2.ArrowFilled:
geometry = CreateArrowGeometry(5.0, 5.0, strokeWidth, 1.0, true, true).EnsureFrozen <Geometry>();
num2 = 1.5;
break;
case LineCap2.Rounded:
strokeStyle.StartLineCap = PenLineCap.Round;
geometry = null;
break;
default:
throw ExceptionUtil.InvalidEnumArgumentException <LineCap2>(startCap, "startCap");
}
double num3 = 0.0;
switch (endCap)
{
case LineCap2.Flat:
geometry2 = null;
break;
case LineCap2.Arrow:
geometry2 = CreateArrowGeometry(5.0, 5.0, strokeWidth, 1.0, false, false).EnsureFrozen <Geometry>();
num3 = 0.5;
break;
case LineCap2.ArrowFilled:
geometry2 = CreateArrowGeometry(5.0, 5.0, strokeWidth, 1.0, true, true).EnsureFrozen <Geometry>();
num3 = 1.5;
break;
case LineCap2.Rounded:
strokeStyle.EndLineCap = PenLineCap.Round;
geometry2 = null;
break;
default:
throw ExceptionUtil.InvalidEnumArgumentException <LineCap2>(endCap, "endCap");
}
strokeStyle.Freeze();
if (geometry == null)
{
geometry3 = null;
}
else
{
PointAndTangentDouble pointAtLength = lineGeometry.GetPointAtLength(0.0, flatteningTolerance);
double radians = Math.Atan2(pointAtLength.Tangent.Y, pointAtLength.Tangent.X) + 3.1415926535897931;
Matrix3x2Double num9 = Matrix3x2Double.RotationByRadians(radians);
Matrix3x2Double num10 = Matrix3x2Double.Translation(pointAtLength.Point.X, pointAtLength.Point.Y);
Matrix3x2Double matrix = num9 * num10;
geometry3 = geometry.GetTransformedGeometry(matrix).EnsureFrozen <Geometry>();
}
if (geometry2 == null)
{
geometry4 = null;
}
else
{
double num14 = lineGeometry.GetLength(flatteningTolerance);
PointAndTangentDouble num15 = lineGeometry.GetPointAtLength(num14, flatteningTolerance);
Matrix3x2Double num18 = Matrix3x2Double.RotationByRadians(Math.Atan2(num15.Tangent.Y, num15.Tangent.X));
Matrix3x2Double num19 = Matrix3x2Double.Translation(num15.Point.X, num15.Point.Y);
Matrix3x2Double num20 = num18 * num19;
geometry4 = geometry2.GetTransformedGeometry(num20).EnsureFrozen <Geometry>();
}
double startLength = 0.0;
double endLength = length;
if (num2 != 0.0)
{
startLength = strokeWidth * num2;
}
if (num3 != 0.0)
{
endLength = length - (strokeWidth * num3);
}
if ((startLength != 0.0) || (endLength != length))
{
geometry5 = GetTrimmedGeometry(lineGeometry, startLength, endLength).EnsureFrozen <Geometry>();
}
else
{
geometry5 = lineGeometry;
}
Geometry item = new WidenedGeometry(geometry5, strokeWidth, strokeStyle)
{
FlatteningTolerance = flatteningTolerance
}.EnsureFrozen <WidenedGeometry>();
GeometryGroup group = new GeometryGroup {
FillRule = FillRule.Nonzero
};
group.Children.Add(item);
if (geometry3 != null)
{
group.Children.Add(geometry3);
}
if (geometry4 != null)
{
group.Children.Add(geometry4);
}
group.Freeze();
return(group);
}
protected override void OnGetStatus(out ImageResource image, out string text)
{
string str;
PointDouble startPoint;
PointDouble endPoint;
double length;
double num4;
string str2;
string str3;
ShapesToolChanges changes = base.Changes;
switch (this.State)
{
case TransactedToolState.Drawing:
if (changes == null)
{
break;
}
goto Label_003A;
case TransactedToolState.Dirty:
case TransactedToolState.Editing:
goto Label_003A;
}
base.OnGetStatus(out image, out text);
return;
Label_003A:
if (this.State == TransactedToolState.Dirty)
{
str = PdnResources.GetString("LineTool.StatusText.NotAdjusting.Format");
}
else
{
str = PdnResources.GetString("LineTool.StatusText.Format");
}
if (changes.ShapeRenderData.OutlineDraw.IsEmpty)
{
startPoint = changes.StartPoint;
endPoint = changes.EndPoint;
length = 0.0;
num4 = 0.0;
}
else
{
PointAndTangentDouble pointAtLength = changes.ShapeRenderData.OutlineDraw.GetPointAtLength(0.0);
PointAndTangentDouble num12 = changes.ShapeRenderData.OutlineDraw.GetPointAtLength(double.PositiveInfinity);
startPoint = pointAtLength.Point;
endPoint = num12.Point;
length = changes.ShapeRenderData.OutlineDraw.GetLength();
num4 = (-180.0 * Math.Atan2(endPoint.Y - startPoint.Y, endPoint.X - startPoint.X)) / 3.1415926535897931;
}
MeasurementUnit units = base.AppWorkspace.Units;
PointDouble num5 = new PointDouble(base.Document.PixelToPhysicalX(startPoint.X, units), base.Document.PixelToPhysicalY(startPoint.Y, units));
PointDouble num6 = new PointDouble(base.Document.PixelToPhysicalX(endPoint.X, units), base.Document.PixelToPhysicalY(endPoint.Y, units));
VectorDouble num7 = (VectorDouble)(num6 - num5);
double num8 = base.Document.PixelToPhysicalX(length, units);
double num9 = base.Document.PixelToPhysicalY(length, units);
double num10 = (num8 + num9) / 2.0;
if (units != MeasurementUnit.Pixel)
{
str3 = PdnResources.GetString("MeasurementUnit." + units.ToString() + ".Abbreviation");
str2 = "F2";
}
else
{
str3 = string.Empty;
str2 = "F0";
}
string str4 = PdnResources.GetString("MeasurementUnit." + units.ToString() + ".Plural");
string str5 = string.Format(str, new object[] { num7.X.ToString(str2), str3, num7.Y.ToString(str2), str3, num10.ToString("F2"), str4, num4.ToString("F2") });
image = base.Image;
text = str5;
}
