/// <inheritdoc/>
public IPathShape ToStrokePathShape(IBaseShape shape)
{
var path = PathGeometryConverter.ToSKPath(shape, 0.0, 0.0, (value) => (float)value);
if (path == null)
{
return(null);
}
var factory = _serviceProvider.GetService <IFactory>();
var style = shape.Style != null ?
(IShapeStyle)shape.Style?.Copy(null) :
factory.CreateShapeStyle(ProjectEditorConfiguration.DefaulStyleName);
using var paint = SkiaSharpRenderer.ToSKPaintPen(shape.Style, (value) => (float)value, 96.0, 96.0, true);
var result = paint.GetFillPath(path, 1.0f);
if (result != null)
{
if (result.IsEmpty)
{
result.Dispose();
return(null);
}
var geometry = PathGeometryConverter.ToPathGeometry(result, 0.0, 0.0, factory);
var pathShape = factory.CreatePathShape(
"Path",
style,
geometry,
shape.IsStroked,
shape.IsFilled);
result.Dispose();
return(pathShape);
}
return(null);
}
public static SKPath ToSKPath(this IEnumerable <IBaseShape> shapes, double dx, double dy, Func <double, float> scale)
{
var path = new SKPath
{
FillType = SKPathFillType.Winding
};
var previous = default(IPointShape);
foreach (var shape in shapes)
{
switch (shape)
{
case ILineShape lineShape:
{
if (previous == null || previous != lineShape.Start)
{
path.MoveTo(
scale(lineShape.Start.X + dx),
scale(lineShape.Start.Y + dy));
}
path.LineTo(
scale(lineShape.End.X + dx),
scale(lineShape.End.Y + dy));
previous = lineShape.End;
}
break;
case IRectangleShape rectangleShape:
{
path.AddRect(
SkiaSharpRenderer.CreateRect(rectangleShape.TopLeft, rectangleShape.BottomRight, dx, dy, scale),
SKPathDirection.Clockwise);
}
break;
case IEllipseShape ellipseShape:
{
path.AddOval(
SkiaSharpRenderer.CreateRect(ellipseShape.TopLeft, ellipseShape.BottomRight, dx, dy, scale),
SKPathDirection.Clockwise);
}
break;
case IArcShape arcShape:
{
var a = new GdiArc(
Point2.FromXY(arcShape.Point1.X, arcShape.Point1.Y),
Point2.FromXY(arcShape.Point2.X, arcShape.Point2.Y),
Point2.FromXY(arcShape.Point3.X, arcShape.Point3.Y),
Point2.FromXY(arcShape.Point4.X, arcShape.Point4.Y));
var rect = new SKRect(
scale(a.X + dx),
scale(a.Y + dy),
scale(a.X + dx + a.Width),
scale(a.Y + dy + a.Height));
path.AddArc(rect, (float)a.StartAngle, (float)a.SweepAngle);
}
break;
case ICubicBezierShape cubicBezierShape:
{
if (previous == null || previous != cubicBezierShape.Point1)
{
path.MoveTo(
scale(cubicBezierShape.Point1.X + dx),
scale(cubicBezierShape.Point1.Y + dy));
}
path.CubicTo(
scale(cubicBezierShape.Point2.X + dx),
scale(cubicBezierShape.Point2.Y + dy),
scale(cubicBezierShape.Point3.X + dx),
scale(cubicBezierShape.Point3.Y + dy),
scale(cubicBezierShape.Point4.X + dx),
scale(cubicBezierShape.Point4.Y + dy));
previous = cubicBezierShape.Point4;
}
break;
case IQuadraticBezierShape quadraticBezierShape:
{
if (previous == null || previous != quadraticBezierShape.Point1)
{
path.MoveTo(
scale(quadraticBezierShape.Point1.X + dx),
scale(quadraticBezierShape.Point1.Y + dy));
}
path.QuadTo(
scale(quadraticBezierShape.Point2.X + dx),
scale(quadraticBezierShape.Point2.Y + dy),
scale(quadraticBezierShape.Point3.X + dx),
scale(quadraticBezierShape.Point3.Y + dy));
previous = quadraticBezierShape.Point3;
}
break;
case ITextShape textShape:
{
var resultPath = ToSKPath(textShape, dx, dy, scale);
if (resultPath != null && !resultPath.IsEmpty)
{
path.AddPath(resultPath, SKPathAddMode.Append);
}
}
break;
case IPathShape pathShape:
{
var resultPath = ToSKPath(pathShape, dx, dy, scale);
if (resultPath != null && !resultPath.IsEmpty)
{
path.AddPath(resultPath, SKPathAddMode.Append);
}
}
break;
case IGroupShape groupShape:
{
var resultPath = ToSKPath(groupShape.Shapes, dx, dy, scale);
if (resultPath != null && !resultPath.IsEmpty)
{
path.AddPath(resultPath, SKPathAddMode.Append);
}
}
break;
}
}
return(path);
}