public static void Highlight <TFont, TGlyph>(
this RadicalDisplay <TFont, TGlyph> self,
Color color) where TFont : IFont <TGlyph>
{
self.Degree?.Highlight(color);
self.Radicand.Highlight(color);
}
public static void HighlightCharacterAt <TFont, TGlyph>(
this IGlyphDisplay <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 void DrawCaret(ICanvas canvas, Structures.Color color, CaretShape shape)
{
if (!(Caret is CaretHandle caret))
{
return;
}
if (!(Display.PointForIndex(TypesettingContext.Instance, InsertionIndex) is PointF cursorPosition))
{
return;
}
cursorPosition.Y *= -1; //inverted canvas, blah blah
var path = canvas.GetPath();
path.BeginRead(1);
path.Foreground = color;
path.MoveTo(cursorPosition.X, cursorPosition.Y);
switch (shape)
{
case CaretShape.IBeam:
ReadOnlySpan <PointF> s = stackalloc PointF[4] {
new PointF(caret.Width / 16, 0),
new PointF(caret.Width / 16, -caret.Height),
new PointF(-caret.Width / 16, -caret.Height),
new PointF(-caret.Width / 16, 0),
};
foreach (var p in s)
{
path.LineTo(p.X + cursorPosition.X, p.Y + cursorPosition.Y);
}
break;
case CaretShape.UpArrow:
s = stackalloc PointF[4] {
new PointF(caret.Width / 2, caret.Height / 4),
new PointF(caret.Width / 2, caret.Height),
new PointF(-caret.Width / 2, caret.Height),
new PointF(-caret.Width / 2, caret.Height / 4)
};
foreach (var p in s)
{
path.LineTo(p.X + cursorPosition.X, p.Y + cursorPosition.Y);
}
break;
}
path.CloseContour();
path.EndRead();
}
}
public void DrawCaret(ICanvas canvas, Structures.Color color, CaretShape shape)
{
if (!ShowCaret)
{
return;
}
var cursorPosition = Display.PointForIndex(TypesettingContext.Instance, InsertionIndex) ?? Display.Position;
cursorPosition.Y *= -1; //inverted canvas, blah blah
var path = canvas.GetPath();
path.BeginRead(1);
path.Foreground = color;
path.MoveTo(cursorPosition.X, cursorPosition.Y);
switch (shape)
{
case CaretShape.IBeam:
ReadOnlySpan <PointF> s = stackalloc PointF[4] {
new PointF(Font.PointSize / 2 / 16, 0),
new PointF(Font.PointSize / 2 / 16, -Font.PointSize * 2 / 3),
new PointF(-Font.PointSize / 2 / 16, -Font.PointSize * 2 / 3),
new PointF(-Font.PointSize / 2 / 16, 0),
};
foreach (var p in s)
{
path.LineTo(p.X + cursorPosition.X, p.Y + cursorPosition.Y);
}
break;
case CaretShape.UpArrow:
s = stackalloc PointF[4] {
new PointF(Font.PointSize / 2 / 2, Font.PointSize * 2 / 3 / 4),
new PointF(Font.PointSize / 2 / 2, Font.PointSize * 2 / 3),
new PointF(-Font.PointSize / 2 / 2, Font.PointSize * 2 / 3),
new PointF(-Font.PointSize / 2 / 2, Font.PointSize * 2 / 3 / 4)
};
foreach (var p in s)
{
path.LineTo(p.X + cursorPosition.X, p.Y + cursorPosition.Y);
}
break;
}
path.CloseContour();
path.EndRead();
}
}
public static void Highlight <TFont, TGlyph>(
this IGlyphDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph>
{
self.TextColor = color;
}
public Color(Structures.Color color, MathList innerList) : base(string.Empty) =>
(Colour, InnerList) = (color, innerList);
public static void Highlight <TFont, TGlyph>(this RadicalDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph>
{
#warning Is including Degree intended? It is not present in iosMath
self.Degree.Highlight(color);
self.Radicand.Highlight(color);
}
public static void Highlight <TFont, TGlyph>(this IDisplay <TFont, TGlyph> display, Structures.Color color) where TFont : IFont <TGlyph>
{
switch (display)
{
case TextLineDisplay <TFont, TGlyph> text:
text.Highlight(color);
break;
case FractionDisplay <TFont, TGlyph> frac:
frac.Highlight(color);
break;
case RadicalDisplay <TFont, TGlyph> radical:
radical.Highlight(color);
break;
case ListDisplay <TFont, TGlyph> list:
list.Highlight(color);
break;
default:
break;
}
}
public static void Highlight <TFont, TGlyph>(this FractionDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph>
{
self.Numerator.Highlight(color);
self.Denominator.Highlight(color);
}
public void FillRect(RectangleF rect, Structures.Color color) => Checker.ConsoleFillRectangle(new Rectangle((int)(rect.X + trans.X), (int)(rect.Y + trans.Y), (int)rect.Width, (int)rect.Height), color);
public void Add(TextAtom atom, Structures.Color color, int commandLength) => Add(new TextAtom.Color(atom, color, TextLength, commandLength));
public static void Highlight <TFont, TGlyph>(this ListDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph>
{
foreach (var display in self.Displays)
{
display.Highlight(color);
}
}
public static void HighlightCharacterAt <TFont, TGlyph>(this ListDisplay <TFont, TGlyph> self, MathListIndex index, Color color) where TFont : IFont <TGlyph>
{
if (index is null)
{
return;
}
if (self.Range.Contains(index.AtomIndex) && self.SubDisplayForIndex(index) is IDisplay <TFont, TGlyph> display)
{
if (index.SubIndexType is MathListSubIndexType.BetweenBaseAndScripts || index.SubIndexType is MathListSubIndexType.None)
{
display.HighlightCharacterAt(index, color);
}
else
{
// Recurse
display.HighlightCharacterAt(index.SubIndex, color);
}
}
}
public static void Highlight <TFont, TGlyph>(
this InnerDisplay <TFont, TGlyph> self, Color color) where TFont : IFont <TGlyph> =>
self.Inner.Highlight(color);
