public static async Task <Rect> DrawGliss(IRootElementRenderer rootRenderer, Beat beat,
IEnumerable <int> stringIndices,
GlissDirection direction)
{
var beatRenderer = rootRenderer.GetRenderer <Beat, BeatRenderer>(beat);
var renderingContext = beatRenderer.RenderingContext;
var bounds = new BoundingBoxUnion();
foreach (var stringIndex in stringIndices)
{
var noteBounds = renderingContext.GetNoteBoundingBox(beat.OwnerColumn.ColumnIndex, stringIndex);
Debug.Assert(noteBounds != null);
double x;
switch (direction)
{
case GlissDirection.FromHigher:
case GlissDirection.FromLower:
x = noteBounds.Value.Left - renderingContext.Style.NoteMargin;
break;
case GlissDirection.ToHigher:
case GlissDirection.ToLower:
x = noteBounds.Value.Right + renderingContext.Style.NoteMargin;
break;
default:
throw new InvalidOperationException();
}
bounds.AddBounds(await renderingContext.DrawGliss(x, stringIndex, direction, beat.VoicePart));
}
Debug.Assert(bounds.HasAnyBounds);
return(bounds.Bounds);
}
// x is absolute position
public Task <Rect> DrawGliss(double x, int stringIndex, GlissDirection direction, VoicePart voicePart)
{
return(this.PrimitiveRenderer.DrawGliss(x, this.Owner.GetStringPosition(stringIndex), direction));
}
public Task <Rect> DrawGliss(double x, double y, GlissDirection direction)
=> this.InvokeAsyncRenderMethodReturnBoundingBox("drawGliss", x, y, direction);
