protected void UpdateTextGeometry()
{
BoundText = Text.GetProperty(nameof(TextShapeViewModel.Text)) is string boundText ? boundText : Text.Text;
if (BoundText is null)
{
return;
}
if (Style.TextStyle.FontSize < 0.0)
{
return;
}
FormattedText = SkiaSharpDrawUtil.GetSKPaint(BoundText, Style, Text.TopLeft, Text.BottomRight, out var origin);
Origin = origin;
}
public virtual void UpdateStyle()
{
Brush = SkiaSharpDrawUtil.ToSKPaintBrush(ShapeStyleViewModel.Fill.Color);
Pen = SkiaSharpDrawUtil.ToSKPaintPen(ShapeStyleViewModel, ShapeStyleViewModel.Stroke.Thickness);
}
public override void UpdateStyle()
{
Fill = SkiaSharpDrawUtil.ToSKPaintBrush(Color);
}
public static SKPath ToSKPath(this IEnumerable <BaseShapeViewModel> shapes)
{
var path = new SKPath
{
FillType = SKPathFillType.Winding
};
var previous = default(PointShapeViewModel);
foreach (var shape in shapes)
{
switch (shape)
{
case LineShapeViewModel lineShape:
{
if (previous is null || previous != lineShape.Start)
{
path.MoveTo(
(float)(lineShape.Start.X),
(float)(lineShape.Start.Y));
}
path.LineTo(
(float)(lineShape.End.X),
(float)(lineShape.End.Y));
previous = lineShape.End;
}
break;
case RectangleShapeViewModel rectangleShape:
{
path.AddRect(
SkiaSharpDrawUtil.CreateRect(rectangleShape.TopLeft, rectangleShape.BottomRight),
SKPathDirection.Clockwise);
}
break;
case EllipseShapeViewModel ellipseShape:
{
path.AddOval(
SkiaSharpDrawUtil.CreateRect(ellipseShape.TopLeft, ellipseShape.BottomRight),
SKPathDirection.Clockwise);
}
break;
case ArcShapeViewModel 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(
(float)(a.X),
(float)(a.Y),
(float)(a.X + a.Width),
(float)(a.Y + a.Height));
path.AddArc(rect, (float)a.StartAngle, (float)a.SweepAngle);
}
break;
case CubicBezierShapeViewModel cubicBezierShape:
{
if (previous is null || previous != cubicBezierShape.Point1)
{
path.MoveTo(
(float)(cubicBezierShape.Point1.X),
(float)(cubicBezierShape.Point1.Y));
}
path.CubicTo(
(float)(cubicBezierShape.Point2.X),
(float)(cubicBezierShape.Point2.Y),
(float)(cubicBezierShape.Point3.X),
(float)(cubicBezierShape.Point3.Y),
(float)(cubicBezierShape.Point4.X),
(float)(cubicBezierShape.Point4.Y));
previous = cubicBezierShape.Point4;
}
break;
case QuadraticBezierShapeViewModel quadraticBezierShape:
{
if (previous is null || previous != quadraticBezierShape.Point1)
{
path.MoveTo(
(float)(quadraticBezierShape.Point1.X),
(float)(quadraticBezierShape.Point1.Y));
}
path.QuadTo(
(float)(quadraticBezierShape.Point2.X),
(float)(quadraticBezierShape.Point2.Y),
(float)(quadraticBezierShape.Point3.X),
(float)(quadraticBezierShape.Point3.Y));
previous = quadraticBezierShape.Point3;
}
break;
case TextShapeViewModel textShape:
{
var resultPath = ToSKPath(textShape);
if (resultPath is { } && !resultPath.IsEmpty)
{
path.AddPath(resultPath, SKPathAddMode.Append);
}
}
break;
public virtual void UpdateStyle()
{
Fill = SkiaSharpDrawUtil.ToSKPaintBrush(Style.Fill.Color);
Stroke = SkiaSharpDrawUtil.ToSKPaintPen(Style, Style.Stroke.Thickness);
}
