public override void Draw(StreamGeometryContext context, Connection connection)
{
if (connection.SourceConnectionPoint == null || connection.TargetConnectionPoint == null)
{
context.BeginFigure(connection.StartPoint, true, false);
context.LineTo(connection.EndPoint, true, true);
}
else if(connection.Source == connection.Target)
{
Point startPoint = connection.SourceEndPoint.EndPoint;
Point midPoint = connection.SourceConnectionPoint.LineAwayFromThisTo(startPoint, 50);
context.BeginFigure(startPoint, true, true);
context.ArcTo(midPoint, new Size(50, 50), 180, false, SweepDirection.Clockwise, true, true);
context.ArcTo(startPoint, new Size(50, 50), 180, false, SweepDirection.Clockwise, true, true);
}
else
{
Point startPoint = connection.SourceEndPoint.EndPoint;
Point endPoint = connection.TargetEndPoint.EndPoint;
context.BeginFigure(startPoint, true, false);
context.LineTo(endPoint, true, true);
}
}
private static void AddCircleToGeometry(StreamGeometryContext streamGeometryContext, Point[] points, double pointSize)
{
foreach (Point point in points)
{
streamGeometryContext.BeginFigure(new Point(point.X - (pointSize / 2), point.Y - (pointSize / 2)), true, true);
streamGeometryContext.ArcTo(new Point(point.X - (pointSize / 2) - 0.0001, point.Y - (pointSize / 2)),
new Size(pointSize, pointSize), 360, true, SweepDirection.Clockwise, true, false);
}
}
private void DrawGeometry(StreamGeometryContext context, Point centre, float RotationAngle, float WedgeAngle, float Radius, float InnerRadius)
{
var innerArcStartPoint = ComputeCartesianCoordinate(RotationAngle, InnerRadius);
innerArcStartPoint.Offset(centre.X, centre.Y);
var innerArcEndPoint = ComputeCartesianCoordinate(RotationAngle + WedgeAngle, InnerRadius);
innerArcEndPoint.Offset(centre.X, centre.Y);
var outerArcStartPoint = ComputeCartesianCoordinate(RotationAngle, Radius);
outerArcStartPoint.Offset(centre.X, centre.Y);
var outerArcEndPoint = ComputeCartesianCoordinate(RotationAngle + WedgeAngle, Radius);
outerArcEndPoint.Offset(centre.X, centre.Y);
var largeArc = WedgeAngle > 180.0;
var outerArcSize = new Size(Radius, Radius);
var innerArcSize = new Size(InnerRadius, InnerRadius);
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// SerializeData - Serialize the contents of this Segment to the provided context.
/// </summary>
internal override void SerializeData(StreamGeometryContext ctx)
{
ctx.ArcTo(Point, Size, RotationAngle, IsLargeArc, SweepDirection, IsStroked, IsSmoothJoin);
}
/// <summary>
/// SerializeData - Serialize the contents of this Segment to the provided context.
/// </summary>
internal override void SerializeData(StreamGeometryContext ctx)
{
ctx.ArcTo(Point, Size, RotationAngle, IsLargeArc, SweepDirection, IsStroked, IsSmoothJoin);
}
public static void AddArrow(StreamGeometryContext context,Point start,Point end, double thickness) {
if(thickness > 1) {
Point dir = end - start;
Point h = dir;
double dl = dir.Length;
if(dl < 0.001)
return;
dir /= dl;
var s = new Point(-dir.Y,dir.X);
double w = 0.5 * thickness;
Point s0 = w * s;
s *= h.Length * HalfArrowAngleTan;
s += s0;
double rad = w / HalfArrowAngleCos;
context.BeginFigure(Common.WpfPoint(start + s),true,true);
context.LineTo(Common.WpfPoint(start - s),true,false);
context.LineTo(Common.WpfPoint(end - s0),true,false);
context.ArcTo(Common.WpfPoint(end + s0),new Size(rad,rad),
Math.PI - ArrowAngle,false,SweepDirection.Clockwise,true,false);
} else {
Point dir = end - start;
double dl = dir.Length;
//take into account the widths
double delta = Math.Min(dl / 2, thickness + thickness / 2);
dir *= (dl - delta) / dl;
end = start + dir;
dir = dir.Rotate(Math.PI / 2);
Point s = dir * HalfArrowAngleTan;
context.BeginFigure(Common.WpfPoint(start + s),true,true);
context.LineTo(Common.WpfPoint(end),true,true);
context.LineTo(Common.WpfPoint(start - s),true,true);
}
}
static internal void FillContextForICurve(StreamGeometryContext context,ICurve iCurve) {
context.BeginFigure(Common.WpfPoint(iCurve.Start),false,false);
var c = iCurve as Curve;
if(c != null)
FillContexForCurve(context,c);
else {
var cubicBezierSeg = iCurve as CubicBezierSegment;
if(cubicBezierSeg != null)
context.BezierTo(Common.WpfPoint(cubicBezierSeg.B(1)),Common.WpfPoint(cubicBezierSeg.B(2)),
Common.WpfPoint(cubicBezierSeg.B(3)),true,false);
else {
var ls = iCurve as LineSegment;
if(ls != null)
context.LineTo(Common.WpfPoint(ls.End),true,false);
else {
var rr = iCurve as RoundedRect;
if(rr != null)
FillContexForCurve(context,rr.Curve);
else {
var poly = iCurve as Polyline;
if (poly != null)
FillContexForPolyline(context, poly);
else
{
var ellipse = iCurve as Ellipse;
if (ellipse != null) {
// context.LineTo(Common.WpfPoint(ellipse.End),true,false);
double sweepAngle = EllipseSweepAngle(ellipse);
bool largeArc = Math.Abs(sweepAngle) >= Math.PI;
Rectangle box = ellipse.FullBox();
context.ArcTo(Common.WpfPoint(ellipse.End),
new Size(box.Width/2, box.Height/2),
sweepAngle,
largeArc,
sweepAngle < 0
? SweepDirection.Counterclockwise
: SweepDirection.Clockwise,
true, true);
} else {
throw new NotImplementedException();
}
}
}
}
}
}
}
/// <summary>
/// Draws the pie piece
/// </summary>
private void DrawGeometry(StreamGeometryContext context)
{
var innerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, InnerRadius);
innerArcStartPoint.Offset(CentreX, CentreY);
var innerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, InnerRadius);
innerArcEndPoint.Offset(CentreX, CentreY);
var outerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, Radius);
outerArcStartPoint.Offset(CentreX, CentreY);
var outerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, Radius);
outerArcEndPoint.Offset(CentreX, CentreY);
var innerArcMidPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle * .5, InnerRadius);
innerArcMidPoint.Offset(CentreX, CentreY);
var outerArcMidPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle * .5, Radius);
outerArcMidPoint.Offset(CentreX, CentreY);
var largeArc = WedgeAngle > 180.0d;
var requiresMidPoint = Math.Abs(WedgeAngle - 360) < .01;
if (PushOut > 0 && !requiresMidPoint)
{
var offset = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle / 2, PushOut);
innerArcStartPoint.Offset(offset.X, offset.Y);
innerArcEndPoint.Offset(offset.X, offset.Y);
outerArcStartPoint.Offset(offset.X, offset.Y);
outerArcEndPoint.Offset(offset.X, offset.Y);
}
var outerArcSize = new Size(Radius, Radius);
var innerArcSize = new Size(InnerRadius, InnerRadius);
if (requiresMidPoint)
{
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcMidPoint, outerArcSize, 0, false, SweepDirection.Clockwise, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, false, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcMidPoint, innerArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
return;
}
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// Draws the primitive geometric components of the wedge.
/// </summary>
/// <param name="context">The context.</param>
public void InternalDrawGeometry(StreamGeometryContext context)
{
Point startPoint = center;
Point innerArcStartPoint = ComputeCartesianCoordinate(rotationAngle, innerRadius);
innerArcStartPoint.Offset(center.X, center.Y);
Point innerArcEndPoint = ComputeCartesianCoordinate(rotationAngle + sweep, innerRadius);
innerArcEndPoint.Offset(center.X, center.Y);
Point outerArcStartPoint = ComputeCartesianCoordinate(rotationAngle, /*innerRadius +*/ outerRadius);
outerArcStartPoint.Offset(center.X, center.Y);
Point outerArcEndPoint = ComputeCartesianCoordinate(rotationAngle + sweep, /*innerRadius +*/ outerRadius);
outerArcEndPoint.Offset(center.X, center.Y);
bool largeArc = sweep > 180.0;
/*
Point offset = ComputeCartesianCoordinate(rotationAngle + sweep / 2, PushOut);
innerArcStartPoint.Offset(offset.X, offset.Y);
innerArcEndPoint.Offset(offset.X, offset.Y);
outerArcStartPoint.Offset(offset.X, offset.Y);
outerArcEndPoint.Offset(offset.X, offset.Y);
*/
Size outerArcSize = new Size(/*innerRadius +*/ outerRadius, /*innerRadius +*/ outerRadius);
Size innerArcSize = new Size(innerRadius, innerRadius);
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>See <c>WpfExtensions</c> for details.</summary>
public static void AddRectangleFigure(StreamGeometryContext ctx, Rect rect, bool fill, bool stroke, CornerRadius corners, CornerStyle cornerStyle) {
double x0 = rect.Left, x1 = rect.Right, y0 = rect.Top, y1 = rect.Bottom;
double TL = corners.TopLeft, TR = corners.TopRight, BL = corners.BottomLeft, BR = corners.BottomRight;
var sweep = (cornerStyle == CornerStyle.Round ? SweepDirection.Counterclockwise : SweepDirection.Clockwise);
var round = (cornerStyle != CornerStyle.Diagonal);
// left side
ctx.BeginFigure(new Point(x0, y0 + TL), fill, true);
ctx.LineTo(new Point(x0, y1 - BL), stroke, false);
// bottom-left corner
if (BL > 0) {
var bl = new Point(x0 + BL, y1);
if (round) {
ctx.ArcTo(bl, new Size(BL, BL), 0, false, sweep, stroke, false);
} else {
ctx.LineTo(bl, stroke, false);
}
}
// bottom side
ctx.LineTo(new Point(x1 - BR, y1), stroke, false);
// bottom-right corner
if (BR > 0) {
var br = new Point(x1, y1 - BR);
if (round) {
ctx.ArcTo(br, new Size(BR, BR), 0, false, sweep, stroke, false);
} else {
ctx.LineTo(br, stroke, false);
}
}
// right side
ctx.LineTo(new Point(x1, y0 + TR), stroke, false);
// top-right corner
if (TR > 0) {
var tr = new Point(x1 - TR, y0);
if (round) {
ctx.ArcTo(tr, new Size(TR, TR), 0, false, sweep, stroke, false);
} else {
ctx.LineTo(tr, stroke, false);
}
}
// top side and top-left corner
if (TL > 0) {
ctx.LineTo(new Point(x0 + TL, y0), stroke, false);
if (round) {
ctx.ArcTo(new Point(x0, y0 + TL), new Size(TL, TL), 0, false, sweep, stroke, false);
}
}
}
private void InternalDrawArrowGeometry(StreamGeometryContext context)
{
double theta;
if (this.CurveDirection == CurveDirection.Concave)
theta = Math.Atan2(Y1 - Y2, X1 - X2) + (Math.PI / 10);
else
theta = Math.Atan2(Y1 - Y2, X1 - X2) - (Math.PI / 10);
double sint = Math.Sin(theta);
double cost = Math.Cos(theta);
Point pt1 = new Point(X1, this.Y1);
Point pt2 = new Point(X2, this.Y2);
Point pt3 = new Point(
X2 + (HeadWidth * cost - HeadHeight * sint),
Y2 + (HeadWidth * sint + HeadHeight * cost));
Point pt4 = new Point(
X2 + (HeadWidth * cost + HeadHeight * sint),
Y2 - (HeadHeight * cost - HeadWidth * sint));
double ellipseSize = Math.Max(Math.Abs(X1 - X2), Math.Abs(Y1 - Y2)) * 1.7;
context.BeginFigure(pt1, true, false);
if (this.CurveDirection == CurveDirection.Concave)
context.ArcTo(pt2, new Size(ellipseSize, ellipseSize), 45, false, SweepDirection.Clockwise, true, true);
else
context.ArcTo(pt2, new Size(ellipseSize, ellipseSize), 45, false, SweepDirection.Counterclockwise, true, true);
//context.LineTo(pt2, true, true);
context.LineTo(pt3, true, true);
context.LineTo(pt2, true, true);
context.LineTo(pt4, true, true);
context.LineTo(pt2, true, true);
}
private void InternalDrawArrowGeometry(StreamGeometryContext context)
{
Point pt1, pt2, pt3, pt4;
if (ConnectionArrowType == ConnectionArrowType.Normal)
{
var theta = Math.Atan2(Y1 - Y2, X1 - X2);
var sint = Math.Sin(theta);
var cost = Math.Cos(theta);
switch (ViewType)
{
case 0: // прямая в центр
pt1 = new Point(X1, Y1);
pt2 = new Point(X2, Y2);
pt3 = new Point(
X2 + (HeadWidth * cost - HeadHeight * sint),
Y2 + (HeadWidth * sint + HeadHeight * cost));
pt4 = new Point(
X2 + (HeadWidth * cost + HeadHeight * sint),
Y2 - (HeadHeight * cost - HeadWidth * sint));
context.BeginFigure(pt1, true, false);
context.LineTo(pt2, true, true);
context.LineTo(pt3, true, true);
context.LineTo(pt2, true, true);
context.LineTo(pt4, true, true);
break;
case 1: // безье (слабое) в центр
pt1 = new Point(X1, Y1);
pt2 = new Point(X2, Y2);
var ptTemp1 = new Point(
X1 - (X1 - X2) / 2,
Y1 - (Y1 - Y2) / 3);
var ptTemp2 = new Point(
X1 - (X1 - X2) / 4 * 3,
Y1 - (Y1 - Y2) / 3 * 2);
pt3 = new Point(
X2 + (HeadWidth * cost - HeadHeight * sint),
Y2 + (HeadWidth * sint + HeadHeight * cost));
pt4 = new Point(
X2 + (HeadWidth * cost + HeadHeight * sint),
Y2 - (HeadHeight * cost - HeadWidth * sint));
context.BeginFigure(pt1, true, false);
context.BezierTo(ptTemp1, ptTemp2, pt2, true, true);
context.LineTo(pt3, true, true);
context.LineTo(pt2, true, true);
context.LineTo(pt4, true, true);
break;
case 2: // к ближайшему краю
var startPoint = GetBoundPoint(false);
X1 = startPoint.X;
Y1 = startPoint.Y;
var endPoint = GetBoundPoint(true);
X2 = endPoint.X;
Y2 = endPoint.Y;
pt3 = new Point(
X2 + (HeadWidth * cost - HeadHeight * sint),
Y2 + (HeadWidth * sint + HeadHeight * cost));
pt4 = new Point(
X2 + (HeadWidth * cost + HeadHeight * sint),
Y2 - (HeadHeight * cost - HeadWidth * sint));
context.BeginFigure(startPoint, true, false);
context.LineTo(endPoint, true, false);
context.LineTo(pt3, true, true);
context.LineTo(endPoint, true, true);
context.LineTo(pt4, true, true);
break;
}
}
else if (ConnectionArrowType == ConnectionArrowType.Loopback)
{
pt1 = new Point(FromItem.Position.X - 5, FromItem.Position.Y + 83);
pt2 = new Point(pt1.X + 10, pt1.Y - 10);
pt3 = new Point(pt2.X - 4, pt2.Y + 9);
pt4 = new Point(pt2.X - 6, pt2.Y + 16);
context.BeginFigure(pt1, true, false);
context.ArcTo(pt2, new Size(6, 6), 125, true, SweepDirection.Clockwise, true, true);
context.ArcTo(pt1, new Size(6, 6), 125, true, SweepDirection.Clockwise, true, true);
context.LineTo(pt3, true, true);
context.LineTo(pt1, true, true);
context.LineTo(pt4, true, true);
}
else
{
pt1 = new Point(X1 + 20, Y1 - 25);
pt2 = new Point(pt1.X + 10, pt1.Y - 10);
pt3 = new Point(pt2.X - 6, pt2.Y + 2);
pt4 = new Point(pt2.X - 2, pt2.Y + 6);
context.BeginFigure(pt1, true, false);
context.LineTo(pt2, true, true);
context.LineTo(pt3, true, true);
context.LineTo(pt2, true, true);
context.LineTo(pt4, true, true);
}
}
void AddArrow(Edge drawingEdge, StreamGeometryContext context, Point start, Point end, double lineWidthOfAttachedNode)
{
Point dir = end - start;
double dl = dir.Length;
double scaling = (dl<12? 1 : 12 / dl) / _scale;
Point new_start = end - (end - start) * scaling;
//take into account the widths
double delta = Math.Min(dl / 2, drawingEdge.Attr.LineWidth + lineWidthOfAttachedNode / 2);
//dir *= (dl - delta) / dl;
end = start + dir;
dir = dir.Rotate(Math.PI / 2);
Point s = dir * HalfArrowAngleTan * scaling;
context.BeginFigure(CommonX.WpfPoint(start), true, true);
context.LineTo(CommonX.WpfPoint(new_start), true, true);
if (_category == "References")
{
double r = dl * scaling / 2;
context.ArcTo(CommonX.WpfPoint(end), new Size(r, r), 0, true, SweepDirection.Clockwise, true, true);
context.ArcTo(CommonX.WpfPoint(new_start), new Size(r, r), 0, true, SweepDirection.Clockwise, true, true);
}
else
{
context.LineTo(CommonX.WpfPoint(new_start + s), true, true);
context.LineTo(CommonX.WpfPoint(end), true, true);
context.LineTo(CommonX.WpfPoint(new_start - s), true, true);
context.LineTo(CommonX.WpfPoint(new_start), true, true);
}
}
private void DrawGeometry(StreamGeometryContext context)
{
Size WaveSize = new Size(WaveHeight, WaveHeight);
Point StartPoint;
Point EndPoint;
StartPoint = new Point(StartPointX, (PlayfieldHeight-50) * (RemainingLives / Game.STARTING_LIVES ));
EndPoint = new Point(EndPointX, (PlayfieldHeight - 50) * (RemainingLives / Game.STARTING_LIVES));
if (RemainingLives == 0)
{
StartPoint = new Point(StartPointX, (PlayfieldHeight - 50));
EndPoint = new Point(EndPointX, (PlayfieldHeight - 50));
}
Point BottomRight = new Point(EndPointX, PlayfieldHeight);
Point BottomLeft = new Point(StartPointX, PlayfieldHeight);
Point waveEndPoint = EndPoint;
context.BeginFigure(BottomLeft, true, true);
context.LineTo(StartPoint, true, true);
for (int i = 1; i <= NUM_OF_WAVES; i++)
{
waveEndPoint.X = ((EndPoint.X - StartPoint.X) * ((double)i / NUM_OF_WAVES));
context.ArcTo(waveEndPoint, WaveSize, 0, false, SweepDirection.Counterclockwise, true, true);
}
context.LineTo(BottomRight, false, true);
}
void _DrawArcToStream(StreamGeometryContext context) {
var rotationAngle = 65F;
var innerRadius = 0F;
var centerX = _r;
var centreY = _r;
var wedgeAngle = 150F;
Point startPoint = new Point(centerX, centreY);
Point innerArcStartPoint = Tools.ComputeCartesianCoordinate(rotationAngle, innerRadius);
innerArcStartPoint.Offset(centerX, centreY);
Point outerArcStartPoint = Tools.ComputeCartesianCoordinate(rotationAngle, _r);
outerArcStartPoint.Offset(centerX, centreY);
Point outerArcEndPoint = Tools.ComputeCartesianCoordinate(rotationAngle + wedgeAngle, _r);
outerArcEndPoint.Offset(centerX, centreY);
bool largeArc = wedgeAngle > 180.0;
Size outerArcSize = new Size(_r, _r);
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
}
private void method_18(StreamGeometryContext streamGeometryContext_0)
{
Point point = new Point(this.method_10(), this.method_12());
Point point2 = Utils.ComputeCartesianCoordinate(this.method_8(), this.method_4());
point2.Offset(this.method_10(), this.method_12());
Point point3 = Utils.ComputeCartesianCoordinate(this.method_8() + this.method_6(), this.method_4());
point3.Offset(this.method_10(), this.method_12());
Point point4 = Utils.ComputeCartesianCoordinate(this.method_8(), this.method_0());
point4.Offset(this.method_10(), this.method_12());
Point point5 = Utils.ComputeCartesianCoordinate(this.method_8() + this.method_6(), this.method_0());
point5.Offset(this.method_10(), this.method_12());
bool isLargeArc = this.method_6() > 180.0;
if (this.method_2() > 0.0)
{
Point point6 = Utils.ComputeCartesianCoordinate(this.method_8() + this.method_6() / 2.0, this.method_2());
point2.Offset(point6.X, point6.Y);
point3.Offset(point6.X, point6.Y);
point4.Offset(point6.X, point6.Y);
point5.Offset(point6.X, point6.Y);
}
Size size = new Size(this.method_0(), this.method_0());
Size size2 = new Size(this.method_4(), this.method_4());
streamGeometryContext_0.BeginFigure(point2, true, true);
streamGeometryContext_0.LineTo(point4, true, true);
streamGeometryContext_0.ArcTo(point5, size, 0.0, isLargeArc, SweepDirection.Clockwise, true, true);
streamGeometryContext_0.LineTo(point3, true, true);
streamGeometryContext_0.ArcTo(point2, size2, 0.0, isLargeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// Draws the pie piece
/// </summary>
private void DrawGeometry(StreamGeometryContext context)
{
double centreX = Radius;
double centreY = Radius;
Point startPoint = new Point(centreX, centreY);
Point innerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, InnerRadius);
innerArcStartPoint.Offset(centreX, centreY);
Point innerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, InnerRadius);
innerArcEndPoint.Offset(centreX, centreY);
Point outerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, Radius);
outerArcStartPoint.Offset(centreX, centreY);
Point outerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, Radius);
outerArcEndPoint.Offset(centreX, centreY);
bool largeArc = WedgeAngle>180.0;
Size outerArcSize = new Size(Radius, Radius);
Size innerArcSize = new Size(InnerRadius, InnerRadius);
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
// draws a circle at the tail
private void _drawCircularTail(StreamGeometryContext c, Point p, Vector v, double r) {
var p0 = p - v * 2 * r;
c.BeginFigure(p, true, true);
c.ArcTo(p0, new Size(r, r), 0, false, SweepDirection.Clockwise, true, false);
c.ArcTo(p, new Size(r, r), 0, false, SweepDirection.Clockwise, true, false);
}
public static void DrawFigure(StreamGeometryContext ctx, PathFigure figure)
{
ctx.BeginFigure(figure.StartPoint, figure.IsFilled, figure.IsClosed);
foreach (var segment in figure.Segments)
{
var lineSegment = segment as WpfLineSegment;
if (lineSegment != null) { ctx.LineTo(lineSegment.Point, lineSegment.IsStroked, lineSegment.IsSmoothJoin); continue; }
var bezierSegment = segment as BezierSegment;
if (bezierSegment != null) { ctx.BezierTo(bezierSegment.Point1, bezierSegment.Point2, bezierSegment.Point3, bezierSegment.IsStroked, bezierSegment.IsSmoothJoin); continue; }
var quadraticSegment = segment as QuadraticBezierSegment;
if (quadraticSegment != null) { ctx.QuadraticBezierTo(quadraticSegment.Point1, quadraticSegment.Point2, quadraticSegment.IsStroked, quadraticSegment.IsSmoothJoin); continue; }
var polyLineSegment = segment as PolyLineSegment;
if (polyLineSegment != null) { ctx.PolyLineTo(polyLineSegment.Points, polyLineSegment.IsStroked, polyLineSegment.IsSmoothJoin); continue; }
var polyBezierSegment = segment as PolyBezierSegment;
if (polyBezierSegment != null) { ctx.PolyBezierTo(polyBezierSegment.Points, polyBezierSegment.IsStroked, polyBezierSegment.IsSmoothJoin); continue; }
var polyQuadraticSegment = segment as PolyQuadraticBezierSegment;
if (polyQuadraticSegment != null) { ctx.PolyQuadraticBezierTo(polyQuadraticSegment.Points, polyQuadraticSegment.IsStroked, polyQuadraticSegment.IsSmoothJoin); continue; }
var arcSegment = segment as ArcSegment;
if (arcSegment != null) { ctx.ArcTo(arcSegment.Point, arcSegment.Size, arcSegment.RotationAngle, arcSegment.IsLargeArc, arcSegment.SweepDirection, arcSegment.IsStroked, arcSegment.IsSmoothJoin); continue; }
}
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
protected void DrawGeometry(StreamGeometryContext context)
{
Point offset = new Point(
(double.IsNaN(CenterX)) ? Width / 2.0 : CenterX,
(double.IsNaN(CenterY)) ? Height / 2.0 : CenterY);
double angleSpan = Math.Abs(EndAngle - StartAngle);
Point thrustPoint = PolarToCartesian(StartAngle + angleSpan/2.0, RadiusThrust, offset);
Point outerArcStartPoint = PolarToCartesian(StartAngle, OuterRadius, offset);
Point outerArcEndPoint = PolarToCartesian(EndAngle, OuterRadius, offset);
//using LERP, calculate the innerArc points, sadly we shall be short changing
Point innerArcStartPoint = PolarToCartesian(StartAngle, InnerRadius - RadiusThrust, thrustPoint);
Point innerArcEndPoint = PolarToCartesian(EndAngle, InnerRadius - RadiusThrust, thrustPoint);
bool largeArc = angleSpan > 180.0;
double innerArcDim = Math.Max(0.0, InnerRadius - RadiusThrust);
Size outerArcSize = new Size(OuterRadius, OuterRadius);
Size innerArcSize = new Size(innerArcDim, innerArcDim);
context.BeginFigure(outerArcStartPoint, true, true);
//context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// Generates a StreamGeometry.
/// </summary>
/// <param name="ctx">An already opened StreamGeometryContext.</param>
/// <param name="rect">Rectangle for geomentry conversion.</param>
/// <param name="borderInfo">The core points of the border which needs to be used to create
/// the geometry</param>
/// <returns>Result geometry.</returns>
private static void GenerateGeometry(StreamGeometryContext ctx, Rect rect, BorderInfo borderInfo)
{
// compute the coordinates of the key points
var leftTop = new Point(borderInfo.LeftTop, 0);
var rightTop = new Point(rect.Width - borderInfo.RightTop, 0);
var topRight = new Point(rect.Width, borderInfo.TopRight);
var bottomRight = new Point(rect.Width, rect.Height - borderInfo.BottomRight);
var rightBottom = new Point(rect.Width - borderInfo.RightBottom, rect.Height);
var leftBottom = new Point(borderInfo.LeftBottom, rect.Height);
var bottomLeft = new Point(0, rect.Height - borderInfo.BottomLeft);
var topLeft = new Point(0, borderInfo.TopLeft);
// check keypoints for overlap and resolve by partitioning corners according to
// the percentage of each one.
// top edge
if (leftTop.X > rightTop.X)
{
var v = (borderInfo.LeftTop) / (borderInfo.LeftTop + borderInfo.RightTop) * rect.Width;
leftTop.X = v;
rightTop.X = v;
}
// right edge
if (topRight.Y > bottomRight.Y)
{
var v = (borderInfo.TopRight) / (borderInfo.TopRight + borderInfo.BottomRight) * rect.Height;
topRight.Y = v;
bottomRight.Y = v;
}
// bottom edge
if (leftBottom.X > rightBottom.X)
{
var v = (borderInfo.LeftBottom) / (borderInfo.LeftBottom + borderInfo.RightBottom) * rect.Width;
rightBottom.X = v;
leftBottom.X = v;
}
// left edge
if (topLeft.Y > bottomLeft.Y)
{
var v = (borderInfo.TopLeft) / (borderInfo.TopLeft + borderInfo.BottomLeft) * rect.Height;
bottomLeft.Y = v;
topLeft.Y = v;
}
// Apply offset
var offsetX = rect.TopLeft.X;
var offsetY = rect.TopLeft.Y;
var offset = new Vector(offsetX, offsetY);
leftTop += offset;
rightTop += offset;
topRight += offset;
bottomRight += offset;
rightBottom += offset;
leftBottom += offset;
bottomLeft += offset;
topLeft += offset;
// create the border geometry
ctx.BeginFigure(leftTop, true /* is filled */, true /* is closed */);
// Top line
ctx.LineTo(rightTop, true /* is stroked */, false /* is smooth join */);
// Upper-right corners
var radiusX = rect.TopRight.X - rightTop.X;
var radiusY = topRight.Y - rect.TopRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
ctx.ArcTo(topRight, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Right line
ctx.LineTo(bottomRight, true /* is stroked */, false /* is smooth join */);
// Lower-right corners
radiusX = rect.BottomRight.X - rightBottom.X;
radiusY = rect.BottomRight.Y - bottomRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
ctx.ArcTo(rightBottom, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Bottom line
ctx.LineTo(leftBottom, true /* is stroked */, false /* is smooth join */);
// Lower-left corners
radiusX = leftBottom.X - rect.BottomLeft.X;
radiusY = rect.BottomLeft.Y - bottomLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
ctx.ArcTo(bottomLeft, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Left line
ctx.LineTo(topLeft, true /* is stroked */, false /* is smooth join */);
// Upper-left corners
radiusX = leftTop.X - rect.TopLeft.X;
radiusY = topLeft.Y - rect.TopLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
ctx.ArcTo(leftTop, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
}
static void FillContexForCurve(StreamGeometryContext context,Curve c) {
foreach(ICurve seg in c.Segments) {
var bezSeg = seg as CubicBezierSegment;
if(bezSeg != null) {
context.BezierTo(Common.WpfPoint(bezSeg.B(1)),
Common.WpfPoint(bezSeg.B(2)),Common.WpfPoint(bezSeg.B(3)),true,false);
} else {
var ls = seg as LineSegment;
if(ls != null)
context.LineTo(Common.WpfPoint(ls.End),true,false);
else {
var ellipse = seg as Ellipse;
if(ellipse != null) {
// context.LineTo(Common.WpfPoint(ellipse.End),true,false);
double sweepAngle = EllipseSweepAngle(ellipse);
bool largeArc = Math.Abs(sweepAngle) >= Math.PI;
Rectangle box = ellipse.FullBox();
context.ArcTo(Common.WpfPoint(ellipse.End),
new Size(box.Width / 2,box.Height / 2),
sweepAngle,
largeArc,
sweepAngle < 0
? SweepDirection.Counterclockwise
: SweepDirection.Clockwise,
true,true);
} else
throw new NotImplementedException();
}
}
}
}
/// <summary>
/// Draws the pie chart
/// </summary>
/// <param name="context"></param>
private void DrawGeometry(StreamGeometryContext context)
{
Point startPoint = new Point(CentreX, CentreY);
Point outerArcStartPoint = ComputeCartesianCoordinate(Rotation, Radius);
outerArcStartPoint.Offset(CentreX, CentreY);
Point outerArcEndPoint = ComputeCartesianCoordinate(Rotation + Angle, Radius);
outerArcEndPoint.Offset(CentreX, CentreY);
bool largeArc = Angle > 180.0;
Size outerArcSize = new Size(Radius, Radius);
context.BeginFigure(startPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.Close();
}
/// <summary>
/// Parse a PathFigureCollection string
/// </summary>
internal void ParseToGeometryContext(
StreamGeometryContext context,
string pathString,
int startIndex)
{
// [BreakingChange] Dev10 Bug #453199
// We really should throw an ArgumentNullException here for context and pathString.
// From original code
// This is only used in call to Double.Parse
_formatProvider = System.Globalization.CultureInfo.InvariantCulture;
_context = context;
_pathString = pathString;
_pathLength = pathString.Length;
_curIndex = startIndex;
_secondLastPoint = new Point(0, 0);
_lastPoint = new Point(0, 0);
_lastStart = new Point(0, 0);
_figureStarted = false;
bool first = true;
char last_cmd = ' ';
while (ReadToken()) // Empty path is allowed in XAML
{
char cmd = _token;
if (first)
{
if ((cmd != 'M') && (cmd != 'm')) // Path starts with M|m
{
ThrowBadToken();
}
first = false;
}
switch (cmd)
{
case 'm': case 'M':
// XAML allows multiple points after M/m
_lastPoint = ReadPoint(cmd, ! AllowComma);
context.BeginFigure(_lastPoint, IsFilled, ! IsClosed);
_figureStarted = true;
_lastStart = _lastPoint;
last_cmd = 'M';
while (IsNumber(AllowComma))
{
_lastPoint = ReadPoint(cmd, ! AllowComma);
context.LineTo(_lastPoint, IsStroked, ! IsSmoothJoin);
last_cmd = 'L';
}
break;
case 'l': case 'L':
case 'h': case 'H':
case 'v': case 'V':
EnsureFigure();
do
{
switch (cmd)
{
case 'l': _lastPoint = ReadPoint(cmd, ! AllowComma); break;
case 'L': _lastPoint = ReadPoint(cmd, ! AllowComma); break;
case 'h': _lastPoint.X += ReadNumber(! AllowComma); break;
case 'H': _lastPoint.X = ReadNumber(! AllowComma); break;
case 'v': _lastPoint.Y += ReadNumber(! AllowComma); break;
case 'V': _lastPoint.Y = ReadNumber(! AllowComma); break;
}
context.LineTo(_lastPoint, IsStroked, ! IsSmoothJoin);
}
while (IsNumber(AllowComma));
last_cmd = 'L';
break;
case 'c': case 'C': // cubic Bezier
case 's': case 'S': // smooth cublic Bezier
EnsureFigure();
do
{
Point p;
if ((cmd == 's') || (cmd == 'S'))
{
if (last_cmd == 'C')
{
p = Reflect();
}
else
{
p = _lastPoint;
}
_secondLastPoint = ReadPoint(cmd, ! AllowComma);
}
else
{
p = ReadPoint(cmd, ! AllowComma);
_secondLastPoint = ReadPoint(cmd, AllowComma);
}
_lastPoint = ReadPoint(cmd, AllowComma);
context.BezierTo(p, _secondLastPoint, _lastPoint, IsStroked, ! IsSmoothJoin);
last_cmd = 'C';
}
while (IsNumber(AllowComma));
break;
case 'q': case 'Q': // quadratic Bezier
case 't': case 'T': // smooth quadratic Bezier
EnsureFigure();
do
{
if ((cmd == 't') || (cmd == 'T'))
{
if (last_cmd == 'Q')
{
_secondLastPoint = Reflect();
}
else
{
_secondLastPoint = _lastPoint;
}
_lastPoint = ReadPoint(cmd, ! AllowComma);
}
else
{
_secondLastPoint = ReadPoint(cmd, ! AllowComma);
_lastPoint = ReadPoint(cmd, AllowComma);
}
context.QuadraticBezierTo(_secondLastPoint, _lastPoint, IsStroked, ! IsSmoothJoin);
last_cmd = 'Q';
}
while (IsNumber(AllowComma));
break;
case 'a': case 'A':
EnsureFigure();
do
{
// A 3,4 5, 0, 0, 6,7
double w = ReadNumber(! AllowComma);
double h = ReadNumber(AllowComma);
double rotation = ReadNumber(AllowComma);
bool large = ReadBool();
bool sweep = ReadBool();
_lastPoint = ReadPoint(cmd, AllowComma);
context.ArcTo(
_lastPoint,
new Size(w, h),
rotation,
large,
#if PBTCOMPILER
sweep,
#else
sweep ? SweepDirection.Clockwise : SweepDirection.Counterclockwise,
#endif
IsStroked,
! IsSmoothJoin
);
}
while (IsNumber(AllowComma));
last_cmd = 'A';
break;
case 'z':
case 'Z':
EnsureFigure();
context.SetClosedState(IsClosed);
_figureStarted = false;
last_cmd = 'Z';
_lastPoint = _lastStart; // Set reference point to be first point of current figure
break;
default:
ThrowBadToken();
break;
}
}
}
//----------------------------------------------------------------------------//
// Methods //
//----------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////////
/// <summary> Draws the geometry. </summary>
private void DrawGeometry(StreamGeometryContext context)
{
Point startPoint = new Point (CenterX, CenterY);
Point innerArcStartPoint = ComputeCartesian (RotationAngle, InnerRadius);
Point innerArcEndPoint = ComputeCartesian (RotationAngle + WedgeAngle, InnerRadius);
Point outerArcStartPoint = ComputeCartesian (RotationAngle, Radius);
Point outerArcEndPoint = ComputeCartesian (RotationAngle + WedgeAngle, Radius);
innerArcStartPoint.Offset (CenterX, CenterY);
innerArcEndPoint.Offset (CenterX, CenterY);
outerArcStartPoint.Offset (CenterX, CenterY);
outerArcEndPoint.Offset (CenterX, CenterY);
bool largeArc = WedgeAngle > 180;
if (PushOut > 0)
{
Point offset = ComputeCartesian (RotationAngle + WedgeAngle / 2, PushOut);
innerArcStartPoint.Offset (offset.X, offset.Y);
innerArcEndPoint.Offset (offset.X, offset.Y);
outerArcStartPoint.Offset (offset.X, offset.Y);
outerArcEndPoint.Offset (offset.X, offset.Y);
}
Size outerArcSize = new Size (Radius, Radius);
Size innerArcSize = new Size (InnerRadius, InnerRadius);
context.BeginFigure (innerArcStartPoint, true, true);
context.LineTo (outerArcStartPoint, true, true);
context.ArcTo (outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
context.LineTo (innerArcEndPoint, true, true);
context.ArcTo (innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// Draws the pie piece
/// </summary>
private void DrawGeometry(StreamGeometryContext context)
{
Point startPoint = new Point(CentreX, CentreY);
Point innerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, InnerRadius);
innerArcStartPoint.Offset(CentreX, CentreY);
Point innerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, InnerRadius);
innerArcEndPoint.Offset(CentreX, CentreY);
Point outerArcStartPoint = Utils.ComputeCartesianCoordinate(RotationAngle, Radius);
outerArcStartPoint.Offset(CentreX, CentreY);
Point outerArcEndPoint = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle, Radius);
outerArcEndPoint.Offset(CentreX, CentreY);
bool largeArc = WedgeAngle>180.0;
if (PushOut > 0)
{
Point offset = Utils.ComputeCartesianCoordinate(RotationAngle + WedgeAngle / 2, PushOut);
innerArcStartPoint.Offset(offset.X, offset.Y);
innerArcEndPoint.Offset(offset.X, offset.Y);
outerArcStartPoint.Offset(offset.X, offset.Y);
outerArcEndPoint.Offset(offset.X, offset.Y);
}
Size outerArcSize = new Size(Radius, Radius);
Size innerArcSize = new Size(InnerRadius, InnerRadius);
Size endingsArcSize = new Size(5, 5);
context.BeginFigure(innerArcStartPoint, true, true);
// Use LineTo to draw a flat endings
//context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcStartPoint, endingsArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArc, SweepDirection.Clockwise, true, true);
//context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcEndPoint, endingsArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArc, SweepDirection.Counterclockwise, true, true);
}
/// <summary>
/// Generates a StreamGeometry.
/// </summary>
/// <param name="ctx">An already opened StreamGeometryContext.</param>
/// <param name="rect">Rectangle for geomentry conversion.</param>
/// <param name="radii">Corner radii.</param>
/// <returns>Result geometry.</returns>
private static void GenerateGeometry(StreamGeometryContext ctx, Rect rect, Radii radii)
{
//
// compute the coordinates of the key points
//
Point topLeft = new Point(radii.LeftTop, 0);
Point topRight = new Point(rect.Width - radii.RightTop, 0);
Point rightTop = new Point(rect.Width, radii.TopRight);
Point rightBottom = new Point(rect.Width, rect.Height - radii.BottomRight);
Point bottomRight = new Point(rect.Width - radii.RightBottom, rect.Height);
Point bottomLeft = new Point(radii.LeftBottom, rect.Height);
Point leftBottom = new Point(0, rect.Height - radii.BottomLeft);
Point leftTop = new Point(0, radii.TopLeft);
//
// check keypoints for overlap and resolve by partitioning radii according to
// the percentage of each one.
//
// top edge is handled here
if (topLeft.X > topRight.X)
{
double v = (radii.LeftTop) / (radii.LeftTop + radii.RightTop) * rect.Width;
topLeft.X = v;
topRight.X = v;
}
// right edge
if (rightTop.Y > rightBottom.Y)
{
double v = (radii.TopRight) / (radii.TopRight + radii.BottomRight) * rect.Height;
rightTop.Y = v;
rightBottom.Y = v;
}
// bottom edge
if (bottomRight.X < bottomLeft.X)
{
double v = (radii.LeftBottom) / (radii.LeftBottom + radii.RightBottom) * rect.Width;
bottomRight.X = v;
bottomLeft.X = v;
}
// left edge
if (leftBottom.Y < leftTop.Y)
{
double v = (radii.TopLeft) / (radii.TopLeft + radii.BottomLeft) * rect.Height;
leftBottom.Y = v;
leftTop.Y = v;
}
//
// add on offsets
//
Vector offset = new Vector(rect.TopLeft.X, rect.TopLeft.Y);
topLeft += offset;
topRight += offset;
rightTop += offset;
rightBottom += offset;
bottomRight += offset;
bottomLeft += offset;
leftBottom += offset;
leftTop += offset;
//
// create the border geometry
//
ctx.BeginFigure(topLeft, true /* is filled */, true /* is closed */);
// Top line
ctx.LineTo(topRight, true /* is stroked */, false /* is smooth join */);
// Upper-right corner
double radiusX = rect.TopRight.X - topRight.X;
double radiusY = rightTop.Y - rect.TopRight.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(rightTop, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Right line
ctx.LineTo(rightBottom, true /* is stroked */, false /* is smooth join */);
// Lower-right corner
radiusX = rect.BottomRight.X - bottomRight.X;
radiusY = rect.BottomRight.Y - rightBottom.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(bottomRight, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Bottom line
ctx.LineTo(bottomLeft, true /* is stroked */, false /* is smooth join */);
// Lower-left corner
radiusX = bottomLeft.X - rect.BottomLeft.X;
radiusY = rect.BottomLeft.Y - leftBottom.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(leftBottom, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Left line
ctx.LineTo(leftTop, true /* is stroked */, false /* is smooth join */);
// Upper-left corner
radiusX = topLeft.X - rect.TopLeft.X;
radiusY = leftTop.Y - rect.TopLeft.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(topLeft, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
}
/// <summary>
/// Draws the pie piece
/// </summary>
private void DrawGeometry(StreamGeometryContext context)
{
if (AngleDelta <= 0)
{
return;
}
double outerStartAngle = StartAngle;
double outerAngleDelta = AngleDelta;
double innerStartAngle = StartAngle;
double innerAngleDelta = AngleDelta;
Point arcCenter = new Point(CenterX, CenterY);
Size outerArcSize = new Size(OuterRadius, OuterRadius);
Size innerArcSize = new Size(InnerRadius, InnerRadius);
// If have to draw a full-circle, draws two semi-circles, because 'ArcTo()' can not draw a full-circle
if (AngleDelta >= 360 && Padding <= 0)
{
Point outerArcTopPoint = ComputeCartesianCoordinate(arcCenter, outerStartAngle, OuterRadius + PushOut);
Point outerArcBottomPoint = ComputeCartesianCoordinate(arcCenter, outerStartAngle + 180, OuterRadius + PushOut);
Point innerArcTopPoint = ComputeCartesianCoordinate(arcCenter, innerStartAngle, InnerRadius + PushOut);
Point innerArcBottomPoint = ComputeCartesianCoordinate(arcCenter, innerStartAngle + 180, InnerRadius + PushOut);
context.BeginFigure(innerArcTopPoint, true, true);
context.LineTo(outerArcTopPoint, true, true);
context.ArcTo(outerArcBottomPoint, outerArcSize, 0, false, SweepDirection.Clockwise, true, true);
context.ArcTo(outerArcTopPoint, outerArcSize, 0, false, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcTopPoint, true, true);
context.ArcTo(innerArcBottomPoint, innerArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
context.ArcTo(innerArcTopPoint, innerArcSize, 0, false, SweepDirection.Counterclockwise, true, true);
}
// Else draws as always
else
{
if (Padding > 0)
{
// Offsets the angle by the padding
double outerAngleVariation = (180 * (Padding / OuterRadius)) / Math.PI;
double innerAngleVariation = (180 * (Padding / InnerRadius)) / Math.PI;
outerStartAngle += outerAngleVariation;
outerAngleDelta -= outerAngleVariation * 2;
innerStartAngle += innerAngleVariation;
innerAngleDelta -= innerAngleVariation * 2;
}
Point outerArcStartPoint = ComputeCartesianCoordinate(arcCenter, outerStartAngle, OuterRadius + PushOut);
Point outerArcEndPoint = ComputeCartesianCoordinate(arcCenter, outerStartAngle + outerAngleDelta, OuterRadius + PushOut);
Point innerArcStartPoint = ComputeCartesianCoordinate(arcCenter, innerStartAngle, InnerRadius + PushOut);
Point innerArcEndPoint = ComputeCartesianCoordinate(arcCenter, innerStartAngle + innerAngleDelta, InnerRadius + PushOut);
bool largeArcOuter = outerAngleDelta > 180.0;
bool largeArcInner = innerAngleDelta > 180.0;
context.BeginFigure(innerArcStartPoint, true, true);
context.LineTo(outerArcStartPoint, true, true);
context.ArcTo(outerArcEndPoint, outerArcSize, 0, largeArcOuter, SweepDirection.Clockwise, true, true);
context.LineTo(innerArcEndPoint, true, true);
context.ArcTo(innerArcStartPoint, innerArcSize, 0, largeArcInner, SweepDirection.Counterclockwise, true, true);
}
}
/// <summary>
/// Private helper to render a path figure to the SGC
/// </summary>
private static void AddArcToFigureToStreamGeometryContext(StreamGeometryContext context, List<Point> abPoints, List<Point> dcPoints, List<Point> polyLinePoints)
{
Debug.Assert(context != null);
Debug.Assert(abPoints != null && dcPoints != null);
Debug.Assert(polyLinePoints != null);
//Debug.Assert(abPoints.Count > 0 && dcPoints.Count > 0);
if (abPoints.Count == 0 || dcPoints.Count == 0)
{
return;
}
context.BeginFigure(abPoints[0], //start point
true, //isFilled
true); //IsClosed
for (int j = 0; j < 2; j++)
{
List<Point> points = j == 0 ? abPoints : dcPoints;
int startIndex = j == 0 ? 1 : 0;
for (int i = startIndex; i < points.Count; )
{
Point next = points[i];
if (next == StrokeRenderer.ArcToMarker)
{
if (polyLinePoints.Count > 0)
{
//polyline first
context.PolyLineTo( polyLinePoints,
true, //isStroked
true); //isSmoothJoin
polyLinePoints.Clear();
}
//we're arcing, pull out height, width and the arc to point
Debug.Assert(i + 2 < points.Count);
if (i + 2 < points.Count)
{
Point sizePoint = points[i + 1];
Size ellipseSize = new Size(sizePoint.X / 2/*width*/, sizePoint.Y / 2/*height*/);
Point arcToPoint = points[i + 2];
bool isLargeArc = false; //>= 180
context.ArcTo( arcToPoint,
ellipseSize,
0d, //rotation
isLargeArc, //isLargeArc
SweepDirection.Clockwise,
true, //isStroked
true); //isSmoothJoin
}
i += 3; //advance past this arcTo block
}
else
{
//walk forward until we find an arc marker or the end
polyLinePoints.Add(next);
i++;
}
}
if (polyLinePoints.Count > 0)
{
//polyline
context.PolyLineTo(polyLinePoints,
true, //isStroked
true); //isSmoothJoin
polyLinePoints.Clear();
}
}
}
private void method18(StreamGeometryContext streamGeometryContext)
{
Point point = new Point(method10(), method12());
Point point2 = Utils.ComputeCartesianCoordinate(method8(), method4());
point2.Offset(method10(), method12());
Point point3 = Utils.ComputeCartesianCoordinate(method8() + method6(), method4());
point3.Offset(method10(), method12());
Point point4 = Utils.ComputeCartesianCoordinate(method8(), method0());
point4.Offset(method10(), method12());
Point point5 = Utils.ComputeCartesianCoordinate(method8() + method6(), method0());
point5.Offset(method10(), method12());
bool isLargeArc = method6() > 180.0;
if (method2() > 0.0)
{
Point point6 = Utils.ComputeCartesianCoordinate(method8() + method6() / 2.0, method2());
point2.Offset(point6.X, point6.Y);
point3.Offset(point6.X, point6.Y);
point4.Offset(point6.X, point6.Y);
point5.Offset(point6.X, point6.Y);
}
Size size = new Size(method0(), method0());
Size size2 = new Size(method4(), method4());
streamGeometryContext.BeginFigure(point2, true, true);
streamGeometryContext.LineTo(point4, true, true);
streamGeometryContext.ArcTo(point5, size, 0.0, isLargeArc, SweepDirection.Clockwise, true, true);
streamGeometryContext.LineTo(point3, true, true);
streamGeometryContext.ArcTo(point2, size2, 0.0, isLargeArc, SweepDirection.Counterclockwise, true, true);
}
public void DrawGeometry(StreamGeometryContext context)
{
const double LINE_MODIFIER = .7;
Point EllipseStartPoint = new Point(CenterX - Radius, CenterY);
Point HalfEllipseEndPoint = new Point(CenterX + Radius, CenterY);
Point LeftLineStartPoint = new Point(CenterX - Radius * (1 - LINE_MODIFIER), (CenterY - (Radius * LINE_MODIFIER)));
Point LeftLineEndPoint = new Point(CenterX - Radius * (1 - LINE_MODIFIER), (CenterY + (Radius * LINE_MODIFIER)));
Point RightLineStartPoint2 = new Point(CenterX + Radius * (1 - LINE_MODIFIER), (CenterY - (Radius * LINE_MODIFIER)));
Point RightLineEndPoint2 = new Point(CenterX + Radius * (1 - LINE_MODIFIER), (CenterY + (Radius * LINE_MODIFIER)));
Size ArcSize = new Size(Radius, Radius);
context.BeginFigure(EllipseStartPoint, true, false);
context.ArcTo(HalfEllipseEndPoint, ArcSize, 0, false, SweepDirection.Counterclockwise, true, false);
context.ArcTo(EllipseStartPoint, ArcSize, 0, false, SweepDirection.Counterclockwise, true, false);
context.LineTo(LeftLineStartPoint, false, false);
context.LineTo(LeftLineEndPoint, true, true);
context.LineTo(RightLineEndPoint2, false, false);
context.LineTo(RightLineStartPoint2, true, true);
}
