public static SKPath?GetClipPathClipPath(SvgClipPath svgClipPath, SKRect skBounds, HashSet <Uri> uris, CompositeDisposable disposable)
{
var svgClipPathRef = svgClipPath.GetUriElementReference <SvgClipPath>("clip-path", uris);
if (svgClipPathRef == null || svgClipPathRef.Children == null)
{
return(null);
}
var clipPath = GetClipPath(svgClipPathRef, skBounds, uris, disposable);
if (clipPath != null)
{
var skMatrix = SKMatrix.MakeIdentity();
if (svgClipPathRef.ClipPathUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skScaleMatrix = SKMatrix.MakeScale(skBounds.Width, skBounds.Height);
SKMatrix.PostConcat(ref skMatrix, ref skScaleMatrix);
var skTranslateMatrix = SKMatrix.MakeTranslation(skBounds.Left, skBounds.Top);
SKMatrix.PostConcat(ref skMatrix, ref skTranslateMatrix);
}
var skTransformsMatrix = SvgTransformsExtensions.ToSKMatrix(svgClipPathRef.Transforms);
SKMatrix.PostConcat(ref skMatrix, ref skTransformsMatrix);
clipPath.Transform(skMatrix);
}
return(clipPath);
}
private static SvgGroup GetDataGroup(float left, float top, IReadOnlyList <DataPoint> data)
{
SvgGroup group = Group(left, top);
var definitions = new SvgDefinitionList();
var clip = new SvgClipPath()
{
ID = "data-clip"
};
clip.Children.Add(Rect(0, 0, ChartWidth, ChartHeight));
definitions.Children.Add(clip);
group.Children.Add(definitions);
group.Children.Add(GetChartGroup(0, 0));
group.Children.Add(GetDayGroup(0, ChartHeight));
group.Children.Add(GetDateGroup(0, ChartHeight + DayRow));
for (int i = 0; i <= TotalDays * SegmentsPerDay; i++)
{
float x = i * SegmentWidth;
bool endOfWeek = (i % (SegmentsPerDay * DaysPerWeek)) == 0;
bool endOfDay = (i % SegmentsPerDay) == 0;
group.Children.Add(Line(x, 0, x, endOfDay ? DataHeight : ChartHeight, endOfWeek ? 2.5f : 1f));
}
group.Children.Add(Line(0, ChartHeight + DayRow, ChartWidth, ChartHeight + DayRow));
var chartDataGroup = GetChartDataGroup(0, 0, data);
chartDataGroup.ClipPath = new Uri(string.Format("url(#{0})", clip.ID), UriKind.Relative);
group.Children.Add(chartDataGroup);
group.Children.Add(GetDaysDataGroup(0, ChartHeight, data.First().Time.Date));
return(group);
}
private static SvgClipRule?GetSvgClipRule(SvgClipPath svgClipPath)
{
TryGetAttribute(svgClipPath, "clip-rule", out var clipRuleString);
return(clipRuleString switch
{
"nonzero" => SvgClipRule.NonZero,
"evenodd" => SvgClipRule.EvenOdd,
// TODO: SvgClipRule.Inherit
"inherit" => SvgClipRule.Inherit,
_ => null
});
public static SKPath?GetClipPath(SvgClipPath svgClipPath, SKRect skBounds, HashSet <Uri> uris, CompositeDisposable disposable)
{
var skPathClip = default(SKPath);
var clipPathClipPath = GetClipPathClipPath(svgClipPath, skBounds, uris, disposable);
if (clipPathClipPath != null && !clipPathClipPath.IsEmpty)
{
skPathClip = clipPathClipPath;
}
var clipPath = GetClipPath(svgClipPath.Children, skBounds, uris, disposable);
if (clipPath != null)
{
var skMatrix = SKMatrix.MakeIdentity();
if (svgClipPath.ClipPathUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skScaleMatrix = SKMatrix.MakeScale(skBounds.Width, skBounds.Height);
SKMatrix.PostConcat(ref skMatrix, ref skScaleMatrix);
var skTranslateMatrix = SKMatrix.MakeTranslation(skBounds.Left, skBounds.Top);
SKMatrix.PostConcat(ref skMatrix, ref skTranslateMatrix);
}
var skTransformsMatrix = SvgTransformsExtensions.ToSKMatrix(svgClipPath.Transforms);
SKMatrix.PostConcat(ref skMatrix, ref skTransformsMatrix);
clipPath.Transform(skMatrix);
if (skPathClip == null)
{
skPathClip = clipPath;
}
else
{
var result = skPathClip.Op(clipPath, SKPathOp.Intersect);
disposable.Add(result);
skPathClip = result;
}
}
if (skPathClip == null)
{
skPathClip = new SKPath();
disposable.Add(skPathClip);
}
return(skPathClip);
}
