45 lines
1.3 KiB
C#
45 lines
1.3 KiB
C#
using System.Diagnostics.CodeAnalysis;
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namespace Voile.Resources;
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/// <summary>
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/// Contains a set of multiple fonts. Used to fetch fonts based on availability of glyphs.
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/// </summary>
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public class FontSet
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{
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public FontSet() { }
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public FontSet(IEnumerable<ResourceRef<Font>> fonts)
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{
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_fonts = fonts.ToList();
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}
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public void AddFont(ResourceRef<Font> font) => _fonts.Add(font);
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/// <summary>
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/// Tries to get a suitable font that has a given character.
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/// </summary>
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/// <param name="c">Character to get a suitable font for.</param>
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/// <param name="result">Font that contains this character.</param>
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/// <returns><c>true</c> if a font that contains this character exists, <c>false</c> otherwise.</returns>
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public bool TryGetFontFor(char c, [NotNullWhen(true)] out ResourceRef<Font>? result)
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{
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result = ResourceRef<Font>.Empty();
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foreach (var fontRef in _fonts)
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{
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if (!fontRef.TryGetValue(out var font))
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{
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return false;
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}
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if (font.HasGlyph(c))
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{
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result = fontRef;
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return true;
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}
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}
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return false;
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}
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private List<ResourceRef<Font>> _fonts = new();
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} |