153 lines
4.5 KiB
C#
153 lines
4.5 KiB
C#
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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using System.Runtime.CompilerServices;
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namespace FlaxEngine
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{
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/// <summary>
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/// Font reference that defines the font asset and font size to use.
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/// </summary>
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public struct FontReference
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{
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[NoSerialize]
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private FontAsset _font;
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[NoSerialize]
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private int _size;
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[NoSerialize]
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private Font _cachedFont;
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/// <summary>
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/// Initializes a new instance of the <see cref="FontReference"/> struct.
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/// </summary>
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/// <param name="font">The font.</param>
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/// <param name="size">The font size.</param>
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public FontReference(FontAsset font, int size)
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{
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_font = font;
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_size = size;
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_cachedFont = null;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="FontReference"/> struct.
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/// </summary>
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/// <param name="font">The font.</param>
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public FontReference(Font font)
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{
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_font = font?.Asset;
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_size = font?.Size ?? 30;
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_cachedFont = font;
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}
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/// <summary>
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/// The font asset.
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/// </summary>
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[EditorOrder(0), Tooltip("The font asset to use as characters source.")]
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public FontAsset Font
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{
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get => _font;
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set
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{
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if (_font != value)
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{
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_font = value;
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if (_cachedFont)
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_cachedFont = null;
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}
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}
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}
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/// <summary>
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/// The size of the font characters.
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/// </summary>
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[EditorOrder(10), Limit(1, 500, 0.1f), Tooltip("The size of the font characters.")]
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public int Size
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{
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get => _size;
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set
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{
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if (_size != value)
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{
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_size = value;
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if (_cachedFont)
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_cachedFont = null;
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}
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}
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}
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/// <summary>
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/// Gets the font object described by the structure.
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/// </summary>
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/// <returns>Th font or null if descriptor is invalid.</returns>
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public Font GetFont()
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{
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return _cachedFont ?? (_cachedFont = _font?.CreateFont(_size));
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}
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/// <summary>
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/// Determines whether the specified <see cref="FontReference" /> is equal to this instance.
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/// </summary>
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/// <param name="other">The <see cref="FontReference" /> to compare with this instance.</param>
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/// <returns>
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/// <c>true</c> if the specified <see cref="FontReference" /> is equal to this instance; otherwise, <c>false</c>.
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/// </returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool Equals(ref FontReference other)
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{
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return _font == other._font && _size == other._size;
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}
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/// <summary>
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/// Compares two font references.
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/// </summary>
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/// <param name="lhs">The left.</param>
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/// <param name="rhs">The right.</param>
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/// <returns>True if font references are equal, otherwise false.</returns>
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public static bool operator ==(FontReference lhs, FontReference rhs)
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{
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return lhs.Equals(ref rhs);
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}
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/// <summary>
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/// Compares two font references.
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/// </summary>
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/// <param name="lhs">The left.</param>
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/// <param name="rhs">The right.</param>
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/// <returns>True if font references are not equal, otherwise false.</returns>
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public static bool operator !=(FontReference lhs, FontReference rhs)
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{
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return !lhs.Equals(ref rhs);
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}
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/// <inheritdoc />
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public override bool Equals(object other)
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{
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if (!(other is FontReference))
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return false;
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var fontReference = (FontReference)other;
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return Equals(ref fontReference);
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}
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/// <inheritdoc />
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public override int GetHashCode()
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{
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unchecked
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{
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int hashCode = _font.GetHashCode();
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hashCode = (hashCode * 397) ^ _size;
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return hashCode;
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}
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}
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/// <inheritdoc />
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public override string ToString()
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{
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return string.Format("{0}, size {1}", _font ? _font.ToString() : string.Empty, _size);
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}
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}
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}
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