public static void HighlightCharacterAt <TFont, TGlyph>(
this InnerDisplay <TFont, TGlyph> self,
MathListIndex index, Color color) where TFont : IFont <TGlyph>
{
if (index.SubIndexType != MathListSubIndexType.None)
{
throw new ArgumentException
("The subindex must be none to get the highlight a character in it.", nameof(index));
}
self.Highlight(color);
}
public static PointF?PointForIndex <TFont, TGlyph>(
this InnerDisplay <TFont, TGlyph> self,
TypesettingContext <TFont, TGlyph> _,
MathListIndex index) where TFont : IFont <TGlyph> =>
index.SubIndexType != MathListSubIndexType.None
? throw new ArgumentException
("The subindex must be none to get the closest point for it.", nameof(index))
: index.AtomIndex == self.Range.End
// draw a caret after the inner
? self.Position.Plus(new PointF(self.DisplayBounds().Right, 0))
// draw a caret before the inner
: self.Position;
public static MathListIndex IndexForPoint <TFont, TGlyph>(
this InnerDisplay <TFont, TGlyph> self,
TypesettingContext <TFont, TGlyph> context,
PointF point) where TFont : IFont <TGlyph> =>
// We can be before or after the inner
point.X <self.Position.X + (self.Left?.Width / 2 ?? 0)
//We are before the inner, so
? MathListIndex.Level0Index(self.Range.Location)
: point.X> self.Position.X + self.Width - (self.Right?.Width / 2 ?? 0)
//We are after the inner
? MathListIndex.Level0Index(self.Range.End)
: MathListIndex.IndexAtLocation(self.Range.Location,
MathListSubIndexType.Inner, self.Inner.IndexForPoint(context, point));
public static void Highlight <TFont, TGlyph>(
this InnerDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph> =>
self.Inner.Highlight(color);
