private FontData AddInternal(string familyName, float size, IEnumerable <Range <int> > characterRanges,
FontStyle style, bool system)
{
if (characterRanges == null)
{
throw new ArgumentNullException(nameof(characterRanges));
}
if (size <= 0)
{
throw new ArgumentOutOfRangeException(nameof(size), "Size must be larger than 0.");
}
var key = new FontData(familyName, size, style);
var existingEntry = _atlasEntries.FirstOrDefault(e => e.Font == key);
if (existingEntry != null)
{
existingEntry.AddCharacterRanges(characterRanges);
}
else
{
var entry = new FontAtlasEntry(key, characterRanges, system, _atlasEntries.Count);
_atlasEntries.Add(entry);
}
return(key);
}
/// <summary>
/// Create a new <see cref="FontAtlasEntry"/>.
/// </summary>
/// <param name="font">Data of the font to use.</param>
/// <param name="characterRanges">Characters to include in this entry.</param>
/// <param name="isSystemFont">Indicates if the font is a system font.</param>
/// <param name="index">Index of this entry in the list of entries.</param>
public FontAtlasEntry(FontData font, IEnumerable <Range <int> > characterRanges, bool isSystemFont, int index)
{
Font = font;
CharacterRanges = characterRanges.ToList();
IsSystemFont = isSystemFont;
Index = index;
}
/// <summary> /// Get a glyph map by <see cref="FontData"/>. /// </summary> /// <param name="fontData">Font data to get the glyph map for.</param> public PixelGlyphMap this[FontData fontData] => _glyphMaps.First(g => FontMatchesFontData(g.Font, fontData));