mirror of
https://github.com/ppy/osu
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158 lines
6.2 KiB
C#
158 lines
6.2 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Graphics.Sprites;
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namespace osu.Game.Graphics
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{
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public static class OsuFont
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{
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/// <summary>
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/// The default font size.
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/// </summary>
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public const float DEFAULT_FONT_SIZE = 16;
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/// <summary>
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/// The default font.
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/// </summary>
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public static FontUsage Default => GetFont();
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public static FontUsage Numeric => GetFont(Typeface.Venera, weight: FontWeight.Bold);
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public static FontUsage Torus => GetFont(Typeface.Torus, weight: FontWeight.Regular);
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public static FontUsage TorusAlternate => GetFont(Typeface.TorusAlternate, weight: FontWeight.Regular);
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public static FontUsage Inter => GetFont(Typeface.Inter, weight: FontWeight.Regular);
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/// <summary>
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/// Retrieves a <see cref="FontUsage"/>.
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/// </summary>
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/// <param name="typeface">The font typeface.</param>
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/// <param name="size">The size of the text in local space. For a value of 16, a single line will have a height of 16px.</param>
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/// <param name="weight">The font weight.</param>
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/// <param name="italics">Whether the font is italic.</param>
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/// <param name="fixedWidth">Whether all characters should be spaced the same distance apart.</param>
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/// <returns>The <see cref="FontUsage"/>.</returns>
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public static FontUsage GetFont(Typeface typeface = Typeface.Torus, float size = DEFAULT_FONT_SIZE, FontWeight weight = FontWeight.Medium, bool italics = false, bool fixedWidth = false)
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=> new FontUsage(GetFamilyString(typeface), size, GetWeightString(typeface, weight), getItalics(italics), fixedWidth);
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private static bool getItalics(in bool italicsRequested)
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{
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// right now none of our fonts support italics.
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// should add exceptions to this rule if they come up.
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return false;
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}
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/// <summary>
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/// Retrieves the string representation of a <see cref="Typeface"/>.
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/// </summary>
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/// <param name="typeface">The <see cref="Typeface"/>.</param>
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/// <returns>The string representation.</returns>
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public static string GetFamilyString(Typeface typeface)
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{
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switch (typeface)
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{
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case Typeface.Venera:
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return "Venera";
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case Typeface.Torus:
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return "Torus";
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case Typeface.TorusAlternate:
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return "Torus-Alternate";
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case Typeface.Inter:
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return "Inter";
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}
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return null;
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}
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/// <summary>
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/// Retrieves the string representation of a <see cref="FontWeight"/>.
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/// </summary>
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/// <param name="typeface">The <see cref="Typeface"/>.</param>
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/// <param name="weight">The <see cref="FontWeight"/>.</param>
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/// <returns>The string representation of <paramref name="weight"/> in the specified <paramref name="typeface"/>.</returns>
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public static string GetWeightString(Typeface typeface, FontWeight weight)
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{
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if (typeface == Typeface.Torus && weight == FontWeight.Medium)
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// torus doesn't have a medium; fallback to regular.
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weight = FontWeight.Regular;
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return GetWeightString(GetFamilyString(typeface), weight);
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}
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/// <summary>
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/// Retrieves the string representation of a <see cref="FontWeight"/>.
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/// </summary>
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/// <param name="family">The family string.</param>
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/// <param name="weight">The <see cref="FontWeight"/>.</param>
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/// <returns>The string representation of <paramref name="weight"/> in the specified <paramref name="family"/>.</returns>
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public static string GetWeightString(string family, FontWeight weight) => weight.ToString();
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}
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public static class OsuFontExtensions
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{
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/// <summary>
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/// Creates a new <see cref="FontUsage"/> by applying adjustments to this <see cref="FontUsage"/>.
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/// </summary>
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/// <param name="usage">The base <see cref="FontUsage"/>.</param>
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/// <param name="typeface">The font typeface. If null, the value is copied from this <see cref="FontUsage"/>.</param>
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/// <param name="size">The text size. If null, the value is copied from this <see cref="FontUsage"/>.</param>
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/// <param name="weight">The font weight. If null, the value is copied from this <see cref="FontUsage"/>.</param>
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/// <param name="italics">Whether the font is italic. If null, the value is copied from this <see cref="FontUsage"/>.</param>
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/// <param name="fixedWidth">Whether all characters should be spaced apart the same distance. If null, the value is copied from this <see cref="FontUsage"/>.</param>
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/// <returns>The resulting <see cref="FontUsage"/>.</returns>
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public static FontUsage With(this FontUsage usage, Typeface? typeface = null, float? size = null, FontWeight? weight = null, bool? italics = null, bool? fixedWidth = null)
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{
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string familyString = typeface != null ? OsuFont.GetFamilyString(typeface.Value) : usage.Family;
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string weightString = weight != null ? OsuFont.GetWeightString(familyString, weight.Value) : usage.Weight;
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return usage.With(familyString, size, weightString, italics, fixedWidth);
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}
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}
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public enum Typeface
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{
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Venera,
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Torus,
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TorusAlternate,
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Inter,
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}
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public enum FontWeight
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{
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/// <summary>
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/// Equivalent to weight 300.
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/// </summary>
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Light = 300,
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/// <summary>
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/// Equivalent to weight 400.
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/// </summary>
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Regular = 400,
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/// <summary>
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/// Equivalent to weight 500.
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/// </summary>
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Medium = 500,
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/// <summary>
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/// Equivalent to weight 600.
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/// </summary>
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SemiBold = 600,
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/// <summary>
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/// Equivalent to weight 700.
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/// </summary>
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Bold = 700,
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/// <summary>
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/// Equivalent to weight 900.
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/// </summary>
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Black = 900
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}
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}
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