public static void MakeBezierCurve(this IBiaNodeLink self, Span <ImmutableVec2_float> result)
{
var item1 = self.ItemSlot1.Item ?? throw new NullReferenceException();
var item2 = self.ItemSlot2.Item ?? throw new NullReferenceException();
var pos1 = item1.MakeSlotPosDefault(self.InternalData().Slot1 !);
var pos2 = item2.MakeSlotPosDefault(self.InternalData().Slot2 !);
var pos1C = BiaNodeEditorHelper.MakeBezierControlPoint(pos1, self.InternalData().Slot1 !.Dir);
var pos2C = BiaNodeEditorHelper.MakeBezierControlPoint(pos2, self.InternalData().Slot2 !.Dir);
result[0] = new ImmutableVec2_float((float)pos1.X, (float)pos1.Y);
result[1] = new ImmutableVec2_float((float)pos1C.X, (float)pos1C.Y);
result[2] = new ImmutableVec2_float((float)pos2C.X, (float)pos2C.Y);
result[3] = new ImmutableVec2_float((float)pos2.X, (float)pos2.Y);
}
private void DrawCurves(DeviceContext target, bool isDrawArrow, float lineWidth)
{
if (_parent.LinksSource is null)
{
return;
}
var arrowSize = BaseArrowSize / (float)_parent.ScaleTransform.ScaleX;
var inflate = arrowSize;
var viewport = _parent.TransformRect(ActualWidth, ActualHeight);
var lineCullingRect = new ImmutableRect_float(
(float)viewport.X - inflate,
(float)viewport.Y - inflate,
(float)viewport.Width + inflate * 2f,
(float)viewport.Height + inflate * 2f
);
var hasHighlightCurves = false;
var borderKey = HashCodeMaker.To32(ByteColor.Black.HashCode);
if (ResourceCache.TryGetValue(borderKey, out var borderBrushObj) == false)
{
borderBrushObj = ResourceCache.Add(borderKey, t => ColorToBrushConv(t, ByteColor.Black));
}
var borderBrush = borderBrushObj as Brush;
Span <ImmutableVec2_float> bezier = stackalloc ImmutableVec2_float[4];
using var curves = new TempBuffer <(PathGeometry Geom, GeometrySink Sink, IBiaNodeLink Link)>(256);
foreach (IBiaNodeLink?link in _parent.LinksSource)
{
if (link is null)
{
continue;
}
if (link.IsVisible == false)
{
continue;
}
if (link.IsLinked() == false)
{
continue;
}
var isHighlight = link.IsHighlight();
if (isHighlight)
{
hasHighlightCurves = true;
}
// ハイライトがあれば、非ハイライトを表示しない
if (hasHighlightCurves && isHighlight == false)
{
continue;
}
link.MakeBezierCurve(bezier);
var keyBezier = MakeHashCode(bezier);
if (_boundingBoxCache.TryGetValue(keyBezier, out var bb) == false)
{
bb = BiaNodeEditorHelper.MakeBoundingBox(bezier);
_boundingBoxCache.Add(keyBezier, bb);
}
if (bb.IntersectsWith(lineCullingRect) == false)
{
continue;
}
var curveGeom = new PathGeometry(target.Factory);
var curveSink = curveGeom.Open();
curveSink.SetFillMode(FillMode.Winding);
curveSink.BeginFigure(Unsafe.As <ImmutableVec2_float, RawVector2>(ref bezier[0]), FigureBegin.Hollow);
curveSink.AddBezier(Unsafe.As <ImmutableVec2_float, BezierSegment>(ref bezier[1]));
curveSink.EndFigure(FigureEnd.Open);
if (isDrawArrow)
{
DrawArrow(curveSink, bezier, arrowSize);
}
curveSink.Close();
// ReSharper disable once PossiblyImpureMethodCallOnReadonlyVariable
curves.Add((curveGeom, curveSink, link));
}
foreach (var(geom, sink, link) in curves.Buffer)
{
var isHighlight = link.IsHighlight();
if (hasHighlightCurves == false || isHighlight)
{
var key = HashCodeMaker.Make(link.Color, isHighlight);
var resKey = HashCodeMaker.To32(key);
if (ResourceCache.TryGetValue(resKey, out var brush) == false)
{
brush = ResourceCache.Add(resKey, t => ColorToBrushConv(t, link.Color));
}
target.DrawGeometry(geom, borderBrush, lineWidth * 2f);
target.DrawGeometry(geom, brush as Brush, lineWidth);
target.FillGeometry(geom, brush as Brush);
}
sink.Dispose();
geom.Dispose();
}
}
