private void DrawLineArrowsInternal(XGraphics gfx, LineShape line, double dx, double dy, out XPoint pt1, out XPoint pt2)
{
XSolidBrush fillStartArrow = ToXSolidBrush(line.Style.StartArrowStyle.Fill);
XPen strokeStartArrow = ToXPen(line.Style.StartArrowStyle, _scaleToPage, _sourceDpi, _targetDpi);
XSolidBrush fillEndArrow = ToXSolidBrush(line.Style.EndArrowStyle.Fill);
XPen strokeEndArrow = ToXPen(line.Style.EndArrowStyle, _scaleToPage, _sourceDpi, _targetDpi);
double _x1 = line.Start.X + dx;
double _y1 = line.Start.Y + dy;
double _x2 = line.End.X + dx;
double _y2 = line.End.Y + dy;
LineShapeExtensions.GetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);
double x1 = _scaleToPage(_x1);
double y1 = _scaleToPage(_y1);
double x2 = _scaleToPage(_x2);
double y2 = _scaleToPage(_y2);
var sas = line.Style.StartArrowStyle;
var eas = line.Style.EndArrowStyle;
double a1 = Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI;
double a2 = Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI;
// Draw start arrow.
pt1 = DrawLineArrowInternal(gfx, strokeStartArrow, fillStartArrow, x1, y1, a1, sas);
// Draw end arrow.
pt2 = DrawLineArrowInternal(gfx, strokeEndArrow, fillEndArrow, x2, y2, a2, eas);
}
private void DrawLineCurveInternal(DrawingContext dc, double half, Pen pen, LineShape line, ref Point pt1, ref Point pt2, double dx, double dy)
{
double p1x = pt1.X;
double p1y = pt1.Y;
double p2x = pt2.X;
double p2y = pt2.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(
line.Style.LineStyle.CurveOrientation,
line.Style.LineStyle.Curvature,
line.Start.Alignment,
line.End.Alignment,
ref p1x, ref p1y,
ref p2x, ref p2y);
System.Windows.Media.PathGeometry pg = _curvedLineCache.Get(line);
if (pg != null)
{
var pf = pg.Figures[0];
pf.StartPoint = new Point(pt1.X + dx, pt1.Y + dy);
pf.IsFilled = false;
var bs = pf.Segments[0] as BezierSegment;
bs.Point1 = new Point(p1x + dx, p1y + dy);
bs.Point2 = new Point(p2x + dx, p2y + dy);
bs.Point3 = new Point(pt2.X + dx, pt2.Y + dy);
bs.IsStroked = line.IsStroked;
}
else
{
var pf = new System.Windows.Media.PathFigure()
{
StartPoint = new Point(pt1.X + dx, pt1.Y + dy),
IsFilled = false
};
var bs = new BezierSegment(
new Point(p1x + dx, p1y + dy),
new Point(p2x + dx, p2y + dy),
new Point(pt2.X + dx, pt2.Y + dy),
line.IsStroked);
//bs.Freeze();
pf.Segments.Add(bs);
//pf.Freeze();
pg = new System.Windows.Media.PathGeometry();
pg.Figures.Add(pf);
//pg.Freeze();
_curvedLineCache.Set(line, pg);
}
DrawPathGeometryInternal(dc, half, null, pen, line.IsStroked, false, pg);
}
private static void DrawLineCurveInternal(XGraphics gfx, XPen pen, bool isStroked, ref XPoint pt1, ref XPoint pt2, double curvature, CurveOrientation orientation, Core2D.Shape.PointAlignment pt1a, Core2D.Shape.PointAlignment pt2a)
{
if (isStroked)
{
var path = new XGraphicsPath();
double p1x = pt1.X;
double p1y = pt1.Y;
double p2x = pt2.X;
double p2y = pt2.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt1a, pt2a, ref p1x, ref p1y, ref p2x, ref p2y);
path.AddBezier(
pt1.X, pt1.Y,
p1x, p1y,
p2x, p2y,
pt2.X, pt2.Y);
gfx.DrawPath(pen, path);
}
}
private SKPath CreateCurveGeometry(SKPoint p0, SKPoint p1, double curvature, CurveOrientation orientation, PointAlignment pt0a, PointAlignment pt1a)
{
var curveGeometry = new SKPath();
curveGeometry.MoveTo(new SKPoint((float)p0.X, (float)p0.Y));
double p0x = p0.X;
double p0y = p0.Y;
double p1x = p1.X;
double p1y = p1.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt0a, pt1a, ref p0x, ref p0y, ref p1x, ref p1y);
var point1 = new SKPoint((float)p0x, (float)p0y);
var point2 = new SKPoint((float)p1x, (float)p1y);
var point3 = new SKPoint(p1.X, p1.Y);
curveGeometry.CubicTo(point1, point2, point3);
return(curveGeometry);
}
private static void DrawLineCurveInternal(Graphics gfx, Pen pen, bool isStroked, ref PointF pt1, ref PointF pt2, double curvature, CurveOrientation orientation, PointAlignment pt1a, PointAlignment pt2a)
{
if (isStroked)
{
double p1x = pt1.X;
double p1y = pt1.Y;
double p2x = pt2.X;
double p2y = pt2.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt1a, pt2a, ref p1x, ref p1y, ref p2x, ref p2y);
gfx.DrawBezier(
pen,
pt1.X, pt1.Y,
(float)p1x,
(float)p1y,
(float)p2x,
(float)p2y,
pt2.X, pt2.Y);
}
}
private AM.StreamGeometry CreateCurveGeometry(A.Point p0, A.Point p1, double curvature, CurveOrientation orientation, PointAlignment pt0a, PointAlignment pt1a)
{
var curveGeometry = new AM.StreamGeometry();
using (var geometryContext = curveGeometry.Open())
{
geometryContext.BeginFigure(new A.Point(p0.X, p0.Y), false);
double p0x = p0.X;
double p0y = p0.Y;
double p1x = p1.X;
double p1y = p1.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt0a, pt1a, ref p0x, ref p0y, ref p1x, ref p1y);
var point1 = new A.Point(p0x, p0y);
var point2 = new A.Point(p1x, p1y);
var point3 = new A.Point(p1.X, p1.Y);
geometryContext.CubicBezierTo(point1, point2, point3);
geometryContext.EndFigure(false);
}
return(curveGeometry);
}
private static void DrawLineCurveInternal(AM.DrawingContext _dc, AM.Pen pen, bool isStroked, ref A.Point pt1, ref A.Point pt2, double curvature, CurveOrientation orientation, PointAlignment pt1a, PointAlignment pt2a)
{
if (isStroked)
{
var sg = new AM.StreamGeometry();
using (var sgc = sg.Open())
{
sgc.BeginFigure(new A.Point(pt1.X, pt1.Y), false);
double p1x = pt1.X;
double p1y = pt1.Y;
double p2x = pt2.X;
double p2y = pt2.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt1a, pt2a, ref p1x, ref p1y, ref p2x, ref p2y);
sgc.CubicBezierTo(
new A.Point(p1x, p1y),
new A.Point(p2x, p2y),
new A.Point(pt2.X, pt2.Y));
sgc.EndFigure(false);
}
_dc.DrawGeometry(null, pen, sg);
}
}
private void DrawLineCurveInternal(SKCanvas canvas, SKPaint pen, bool isStroked, ref SKPoint pt1, ref SKPoint pt2, double curvature, CurveOrientation orientation, PointAlignment pt1a, PointAlignment pt2a)
{
if (isStroked)
{
using (var path = new SKPath())
{
path.MoveTo(pt1.X, pt1.Y);
double p1x = pt1.X;
double p1y = pt1.Y;
double p2x = pt2.X;
double p2y = pt2.Y;
LineShapeExtensions.GetCurvedLineBezierControlPoints(orientation, curvature, pt1a, pt2a, ref p1x, ref p1y, ref p2x, ref p2y);
path.CubicTo(
(float)p1x,
(float)p1y,
(float)p2x,
(float)p2y,
pt2.X, pt2.Y);
canvas.DrawPath(path, pen);
}
}
}
/// <inheritdoc/>
public override void Draw(object dc, LineShape line, double dx, double dy, object db, object r)
{
if (!line.IsStroked)
{
return;
}
var dxf = dc as DxfDocument;
double _x1 = line.Start.X + dx;
double _y1 = line.Start.Y + dy;
double _x2 = line.End.X + dx;
double _y2 = line.End.Y + dy;
LineShapeExtensions.GetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);
// TODO: Draw line start arrow.
// TODO: Draw line end arrow.
// TODO: Draw line curve.
DrawLineInternal(dxf, _currentLayer, line.Style, line.IsStroked, _x1, _y1, _x2, _y2);
}