/// <summary>
/// Get character data
/// </summary>
/// <param name="charOrdinal">Character ordinal</param>
/// <param name="data">Buffer to be sliced and filled with character data</param>
/// <param name="useDefaultChar">Use default character if not found</param>
/// <returns>True if data could be retrieved</returns>
public bool GetCharData(int charOrdinal, ref Span <int> data, bool useDefaultChar = true)
{
if (data.Length < Height || GlyphMapper is null)
{
return(false);
}
if (!GlyphMapper.TryGetValue(charOrdinal, out int index))
{
if (useDefaultChar)
{
if (!GlyphMapper.TryGetValue(DefaultChar, out index))
{
return(false);
}
}
}
if (GlyphUshortData is null)
{
return(false);
}
for (int i = 0; i < Height; i++)
{
data[i] = GlyphUshortData[index + i];
}
return(true);
}
/// <summary>
/// Get character data or data for default character
/// </summary>
/// <param name="character">Character whose data needs to be retrieved</param>
/// <param name="charData">Character data</param>
public void GetCharData(char character, out ReadOnlySpan <ushort> charData)
{
if (GlyphMapper is object &&
(GlyphMapper.TryGetValue((int)character, out int index) ||
GlyphMapper.TryGetValue((int)DefaultChar, out index)))
{
charData = GlyphUshortData.AsSpan().Slice(index, Height);
}
throw new InvalidDataException("Couldn't get the glyph data");
}
