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778
WPFDark/Internals/TextRenderer.cs
Normal file
778
WPFDark/Internals/TextRenderer.cs
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@@ -0,0 +1,778 @@
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using System;
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using System.Buffers;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading;
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using System.Windows;
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using System.Windows.Documents;
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using System.Windows.Media;
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using Jewelry.Collections;
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using WPFDark.Internals;
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namespace WPFDark.Internals
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{
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internal class TextRenderer : TextRendererImpl<IsNotDefaultTextureRenderer>
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{
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internal static TextRenderer Italic =>
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LazyInitializer.EnsureInitialized(ref _Italic, () =>
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{
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var fontFamily = (FontFamily) TextElement.FontFamilyProperty.DefaultMetadata.DefaultValue;
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var fontSize = (double) TextElement.FontSizeProperty.DefaultMetadata.DefaultValue;
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return new TextRenderer(
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fontFamily, fontSize,
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FontStyles.Italic, FontWeights.Normal, FontStretches.Normal);
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});
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private static TextRenderer? _Italic;
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internal TextRenderer(
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FontFamily fontFamily,
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double fontSize,
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FontStyle style,
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FontWeight weight,
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FontStretch stretch)
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: base(fontFamily, fontSize, style, weight, stretch)
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{
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}
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}
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internal class DefaultTextRenderer : TextRendererImpl<IsDefaultTextureRenderer>
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{
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internal static readonly DefaultTextRenderer Instance;
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static DefaultTextRenderer()
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{
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var fontFamily = (FontFamily) ThemeManager.Current.TryFindResource("WPFDarkFontFamily");
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var fontSize = (double) TextElement.FontSizeProperty.DefaultMetadata.DefaultValue;
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Instance = new DefaultTextRenderer(
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fontFamily, fontSize,
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FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
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}
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internal DefaultTextRenderer(
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FontFamily fontFamily,
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double fontSize,
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FontStyle style,
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FontWeight weight,
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FontStretch stretch)
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: base(fontFamily, fontSize, style, weight, stretch)
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{
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}
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}
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internal struct IsDefaultTextureRenderer
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{
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}
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internal struct IsNotDefaultTextureRenderer
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{
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}
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internal partial class TextRendererImpl<TIsDefault>
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{
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internal TextRendererImpl(
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FontFamily fontFamily,
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double fontSize,
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FontStyle style,
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FontWeight weight,
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FontStretch stretch)
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{
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var typeface = new Typeface(fontFamily, style, weight, stretch);
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if (typeface.TryGetGlyphTypeface(out _glyphTypeface) == false)
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{
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// エラーの場合はデフォルトで作り直す
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typeface =
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new Typeface(
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(FontFamily) TextElement.FontFamilyProperty.DefaultMetadata.DefaultValue,
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(FontStyle) TextElement.FontStyleProperty.DefaultMetadata.DefaultValue,
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(FontWeight) TextElement.FontWeightProperty.DefaultMetadata.DefaultValue,
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(FontStretch) TextElement.FontStretchProperty.DefaultMetadata.DefaultValue);
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// デフォルトでもだめなら以降処理しない
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if (typeface.TryGetGlyphTypeface(out _glyphTypeface) == false)
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return;
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}
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_fontSize = fontSize;
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if (typeof(TIsDefault) == typeof(IsDefaultTextureRenderer))
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{
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_fontLineSpacing = DefaultFontLineSpacing;
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_dotGlyphIndex = DefaultDotGlyphIndex;
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_dotAdvanceWidth = DefaultDotAdvanceWidth;
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}
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else
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{
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_glyphDataCache = new Dictionary<int, (ushort GlyphIndex, double AdvanceWidth)>();
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_toGlyphMap = _glyphTypeface.CharacterToGlyphMap;
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_advanceWidthsDict = _glyphTypeface.AdvanceWidths;
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_fontLineSpacing = fontFamily.LineSpacing;
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(_dotGlyphIndex, _dotAdvanceWidth) = CalcGlyphIndexAndWidth('.');
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}
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#if DEBUG
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// グリフデータテーブルを作る
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// 作ったものは、手動でソースコードに組み込む。
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//MakeGlyphDataTable(fontFamily, _glyphTypeface, _fontSize);
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#endif
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}
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#if !NETCOREAPP3_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal double Draw(
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Visual visual,
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string text,
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double x,
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double y,
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Brush brush,
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DrawingContext dc,
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double maxWidth,
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TextAlignment align,
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BiaTextTrimmingMode trimming,
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bool isUseCache)
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{
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return Draw(
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visual,
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text.AsSpan(),
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x,
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y,
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brush,
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dc,
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maxWidth,
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align,
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trimming,
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isUseCache);
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}
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internal double CalcWidth(string text)
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{
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return CalcWidth(text.AsSpan());
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}
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#endif
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internal double Draw(
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Visual visual,
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ReadOnlySpan<char> text,
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double x,
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double y,
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Brush brush,
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DrawingContext dc,
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double maxWidth,
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TextAlignment align,
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BiaTextTrimmingMode trimming,
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bool isUseCache)
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{
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if (NumberHelper.AreCloseZero(_fontSize))
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return 0;
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if (text.Length == 0)
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return 0;
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maxWidth = Math.Ceiling(maxWidth);
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if (maxWidth <= 0)
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return 0;
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var gr = trimming switch
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{
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BiaTextTrimmingMode.None => MakeGlyphRunNone(visual, text, maxWidth, isUseCache),
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BiaTextTrimmingMode.Standard => MakeGlyphRunStandard(visual, text, maxWidth, isUseCache),
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BiaTextTrimmingMode.Filepath => MakeGlyphRunFilepath(visual, text, maxWidth, isUseCache),
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_ => throw new ArgumentOutOfRangeException(nameof(trimming), trimming, null)
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};
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if (gr == default)
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return 0;
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switch (align)
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{
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case TextAlignment.Left:
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break;
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case TextAlignment.Right:
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x += maxWidth - gr.Width;
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break;
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case TextAlignment.Center:
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x += (maxWidth - gr.Width) / 2;
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break;
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default:
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throw new ArgumentOutOfRangeException(nameof(align), align, null);
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}
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if (NumberHelper.AreCloseZero(x) && NumberHelper.AreCloseZero(y))
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{
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dc.DrawGlyphRun(brush, gr.GlyphRun);
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}
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else
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{
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var hash = HashCodeMaker.Make(x, y);
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if (_translateCache.TryGetValue(hash, out var t) == false)
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{
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t = new TranslateTransform(x, y);
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_translateCache.Add(hash, t);
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}
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dc.PushTransform(t);
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dc.DrawGlyphRun(brush, gr.GlyphRun);
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dc.Pop();
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}
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return gr.Width;
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}
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#if NETCOREAPP3_1
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[MethodImpl(MethodImplOptions.AggressiveOptimization)]
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#endif
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internal double CalcWidth(ReadOnlySpan<char> text)
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{
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if (NumberHelper.AreCloseZero(_fontSize))
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return 0;
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if (text.Length == 0)
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return 0;
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var textHashCode = HashCodeMaker.Make(text);
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if (_textWidthCache.TryGetValue(textHashCode, out var textWidth))
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return textWidth;
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foreach (var c in text)
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textWidth += CalcWidth(c);
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_textWidthCache.Add(textHashCode, textWidth);
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return textWidth;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal double CalcWidth(char c)
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{
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if (typeof(TIsDefault) == typeof(IsDefaultTextureRenderer))
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{
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return Unsafe.Add(ref GetDefaultAdvanceWidthTable(), (IntPtr) c);
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}
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else
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{
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Debug.Assert(_glyphDataCache != null);
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Debug.Assert(_toGlyphMap != null);
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Debug.Assert(_advanceWidthsDict != null);
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if (_glyphDataCache.TryGetValue(c, out var data) == false)
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{
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if (_toGlyphMap.TryGetValue(c, out data.GlyphIndex) == false)
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_toGlyphMap.TryGetValue(' ', out data.GlyphIndex);
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data.AdvanceWidth = _advanceWidthsDict[data.GlyphIndex] * _fontSize;
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_glyphDataCache.Add(c, data);
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}
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return data.AdvanceWidth;
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal (ushort GlyphIndex, double AdvanceWidth) CalcGlyphIndexAndWidth(char c)
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{
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if (typeof(TIsDefault) == typeof(IsDefaultTextureRenderer))
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{
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var glyphIndex = Unsafe.Add(ref GetDefaultGlyphIndexTable(), (IntPtr) c);
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var advanceWidth = Unsafe.Add(ref GetDefaultAdvanceWidthTable(), (IntPtr) c);
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return (glyphIndex, advanceWidth);
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}
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else
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{
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Debug.Assert(_glyphDataCache != null);
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Debug.Assert(_toGlyphMap != null);
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Debug.Assert(_advanceWidthsDict != null);
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if (_glyphDataCache.TryGetValue(c, out var data) == false)
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{
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if (_toGlyphMap.TryGetValue(c, out data.GlyphIndex) == false)
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_toGlyphMap.TryGetValue(' ', out data.GlyphIndex);
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data.AdvanceWidth = _advanceWidthsDict[data.GlyphIndex] * _fontSize;
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_glyphDataCache.Add(c, data);
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}
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return (data.GlyphIndex, data.AdvanceWidth);
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}
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}
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internal double FontHeight => _fontLineSpacing * _fontSize;
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#if NETCOREAPP3_1
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[MethodImpl(MethodImplOptions.AggressiveOptimization)]
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#endif
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private (GlyphRun GlyphRun, double Width) MakeGlyphRunNone(Visual visual, ReadOnlySpan<char> text, double maxWidth, bool isUseCache)
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{
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var srcTextLength = text.Length;
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// ReSharper disable MergeConditionalExpression
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var glyphIndexesArray =
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text.Length >= 128
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? ArrayPool<ushort>.Shared.Rent(srcTextLength)
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: null;
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var advanceWidthsArray =
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text.Length >= 128
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? ArrayPool<double>.Shared.Rent(srcTextLength)
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: null;
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var glyphIndexes =
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glyphIndexesArray != null
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? glyphIndexesArray.AsSpan(0, srcTextLength)
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: stackalloc ushort[srcTextLength];
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var advanceWidths =
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advanceWidthsArray != null
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? advanceWidthsArray.AsSpan(0, srcTextLength)
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: stackalloc double[srcTextLength];
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// ReSharper restore MergeConditionalExpression
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try
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{
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var textWidth = 0.0;
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var isTrimmed = false;
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var newCount = 0;
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{
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for (var i = 0; i != text.Length; ++i)
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{
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(glyphIndexes[i], advanceWidths[i]) = CalcGlyphIndexAndWidth(text[i]);
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var oldTextWidth = textWidth;
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textWidth += advanceWidths[i];
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if (textWidth > maxWidth)
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{
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textWidth = oldTextWidth;
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newCount = i - 1;
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isTrimmed = true;
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break;
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}
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}
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}
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if (isTrimmed && newCount <= 0)
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return default;
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if (NumberHelper.AreCloseZero(textWidth))
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return default;
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var dpi = visual.PixelsPerDip();
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long textKey = default;
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if (isUseCache)
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{
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textKey = MakeHashCode(text, textWidth, dpi, BiaTextTrimmingMode.None);
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if (_textCache.TryGetValue(textKey, out var cachedGr))
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return cachedGr;
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}
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var textLength = isTrimmed
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? newCount
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: text.Length;
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var newGlyphIndexes = new ushort[textLength];
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var newAdvanceWidths = new double[textLength];
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glyphIndexes.Slice(0, textLength).CopyTo(newGlyphIndexes.AsSpan());
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advanceWidths.Slice(0, textLength).CopyTo(newAdvanceWidths.AsSpan());
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var gr =
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(new GlyphRun(
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_glyphTypeface,
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0,
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false,
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_fontSize,
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(float) dpi,
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newGlyphIndexes,
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new Point(0, _glyphTypeface!.Baseline * _fontSize),
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newAdvanceWidths,
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null, null, null, null, null, null), textWidth);
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if (isUseCache)
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_textCache.Add(textKey, gr);
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return gr;
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}
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finally
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{
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if (glyphIndexesArray != null)
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ArrayPool<ushort>.Shared.Return(glyphIndexesArray);
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if (advanceWidthsArray != null)
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ArrayPool<double>.Shared.Return(advanceWidthsArray);
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}
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}
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#if NETCOREAPP3_1
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[MethodImpl(MethodImplOptions.AggressiveOptimization)]
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#endif
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private (GlyphRun GlyphRun, double Width) MakeGlyphRunStandard(Visual visual, ReadOnlySpan<char> text, double maxWidth, bool isUseCache)
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{
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// ※ +3 「...」 が増えることがあるためのバッファ
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var srcTextLength = text.Length + 3;
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// ReSharper disable MergeConditionalExpression
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var glyphIndexesArray =
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text.Length >= 128
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? ArrayPool<ushort>.Shared.Rent(srcTextLength)
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: null;
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var advanceWidthsArray =
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text.Length >= 128
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? ArrayPool<double>.Shared.Rent(srcTextLength)
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: null;
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var glyphIndexes =
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glyphIndexesArray != null
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? glyphIndexesArray.AsSpan(0, srcTextLength)
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: stackalloc ushort[srcTextLength];
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var advanceWidths =
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advanceWidthsArray != null
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? advanceWidthsArray.AsSpan(0, srcTextLength)
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: stackalloc double[srcTextLength];
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// ReSharper restore MergeConditionalExpression
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try
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{
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var textWidth = 0.0;
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var isTrimmed = false;
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var newCount = 0;
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{
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for (var i = 0; i != text.Length; ++i)
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{
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(glyphIndexes[i], advanceWidths[i]) = CalcGlyphIndexAndWidth(text[i]);
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textWidth += advanceWidths[i];
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if (textWidth > maxWidth)
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{
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(textWidth, newCount) = TrimGlyphRunStandard(glyphIndexes, advanceWidths, textWidth, maxWidth, i + 1);
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isTrimmed = true;
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break;
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}
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}
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}
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if (NumberHelper.AreCloseZero(textWidth))
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return default;
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var dpi = visual.PixelsPerDip();
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long textKey = default;
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if (isUseCache)
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{
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textKey = MakeHashCode(text, textWidth, dpi, BiaTextTrimmingMode.None);
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if (_textCache.TryGetValue(textKey, out var cachedGr))
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return cachedGr;
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}
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var textLength = isTrimmed
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? newCount
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: text.Length;
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var newGlyphIndexes = new ushort[textLength];
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var newAdvanceWidths = new double[textLength];
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glyphIndexes.Slice(0, textLength).CopyTo(newGlyphIndexes.AsSpan());
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advanceWidths.Slice(0, textLength).CopyTo(newAdvanceWidths.AsSpan());
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|
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if (_glyphTypeface is null)
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throw new InvalidDataException();
|
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var gr =
|
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(new GlyphRun(
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_glyphTypeface,
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0,
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false,
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_fontSize,
|
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(float) dpi,
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newGlyphIndexes,
|
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new Point(0, _glyphTypeface.Baseline * _fontSize),
|
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newAdvanceWidths,
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null, null, null, null, null, null), textWidth);
|
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|
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if (isUseCache)
|
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_textCache.Add(textKey, gr);
|
||||
|
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return gr;
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (glyphIndexesArray != null)
|
||||
ArrayPool<ushort>.Shared.Return(glyphIndexesArray);
|
||||
|
||||
if (advanceWidthsArray != null)
|
||||
ArrayPool<double>.Shared.Return(advanceWidthsArray);
|
||||
}
|
||||
}
|
||||
|
||||
private (double Width, int NewCount) TrimGlyphRunStandard(
|
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Span<ushort> glyphIndexes,
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Span<double> advanceWidths,
|
||||
double textWidth,
|
||||
double maxWidth,
|
||||
int bufferSize)
|
||||
{
|
||||
Debug.Assert(textWidth > maxWidth);
|
||||
|
||||
// 文字列に ... を加える分を考慮して削る文字数を求める
|
||||
var dot3Width = _dotAdvanceWidth * 3.0;
|
||||
|
||||
var removeCount = 1;
|
||||
var newTextWidth = textWidth;
|
||||
{
|
||||
for (var i = bufferSize - 1; i >= 0; --i)
|
||||
{
|
||||
newTextWidth -= advanceWidths[i];
|
||||
|
||||
if (maxWidth - newTextWidth >= dot3Width)
|
||||
break;
|
||||
|
||||
++removeCount;
|
||||
}
|
||||
}
|
||||
|
||||
var newCount = bufferSize - removeCount + 3;
|
||||
if (newCount < 3)
|
||||
return (0.0, 0);
|
||||
|
||||
// 文字列に ... を追加する
|
||||
glyphIndexes[newCount - 1 - 2] = _dotGlyphIndex;
|
||||
glyphIndexes[newCount - 1 - 1] = _dotGlyphIndex;
|
||||
glyphIndexes[newCount - 1 - 0] = _dotGlyphIndex;
|
||||
advanceWidths[newCount - 1 - 2] = _dotAdvanceWidth;
|
||||
advanceWidths[newCount - 1 - 1] = _dotAdvanceWidth;
|
||||
advanceWidths[newCount - 1 - 0] = _dotAdvanceWidth;
|
||||
|
||||
return (newTextWidth + dot3Width, newCount);
|
||||
}
|
||||
|
||||
#if NETCOREAPP3_1
|
||||
[MethodImpl(MethodImplOptions.AggressiveOptimization)]
|
||||
#endif
|
||||
private (GlyphRun GlyphRun, double Width) MakeGlyphRunFilepath(Visual visual, ReadOnlySpan<char> text, double maxWidth, bool isUseCache)
|
||||
{
|
||||
var buffer = ArrayPool<char>.Shared.Rent(text.Length);
|
||||
|
||||
try
|
||||
{
|
||||
if (CalcWidth(text) > maxWidth)
|
||||
text = TrimmingFilepathText(text, maxWidth, buffer);
|
||||
|
||||
return MakeGlyphRunStandard(visual, text, maxWidth, isUseCache);
|
||||
}
|
||||
finally
|
||||
{
|
||||
ArrayPool<char>.Shared.Return(buffer);
|
||||
}
|
||||
}
|
||||
|
||||
#if NETCOREAPP3_1
|
||||
[MethodImpl(MethodImplOptions.AggressiveOptimization)]
|
||||
#endif
|
||||
private ReadOnlySpan<char> TrimmingFilepathText(ReadOnlySpan<char> text, double maxWidth, char[] buffer)
|
||||
{
|
||||
// ref: https://www.codeproject.com/Tips/467054/WPF-PathTrimmingTextBlock
|
||||
|
||||
bool widthOk;
|
||||
|
||||
#if NETCOREAPP3_1
|
||||
var filename = Path.GetFileName(text);
|
||||
var directory = Path.GetDirectoryName(text);
|
||||
#else
|
||||
var textString = text.ToString();
|
||||
var filename = Path.GetFileName(textString).AsSpan();
|
||||
var directory = Path.GetDirectoryName(textString).AsSpan();
|
||||
#endif
|
||||
|
||||
var changedWidth = false;
|
||||
|
||||
var sepSpan = "...\\".AsSpan();
|
||||
|
||||
var sepWidth = CalcWidth(sepSpan);
|
||||
var filepathWidth = CalcWidth(filename);
|
||||
var directoryWidth = CalcWidth(directory);
|
||||
|
||||
do
|
||||
{
|
||||
var pathWidth = directoryWidth + sepWidth + filepathWidth;
|
||||
|
||||
widthOk = pathWidth < maxWidth;
|
||||
|
||||
if (widthOk == false)
|
||||
{
|
||||
changedWidth = true;
|
||||
|
||||
directoryWidth -= CalcWidth(directory[directory.Length - 1]);
|
||||
directory = directory.Slice(0, directory.Length - 1);
|
||||
|
||||
if (directory.Length == 0)
|
||||
{
|
||||
// "...\\" + new string(filename);
|
||||
sepSpan.CopyTo(buffer);
|
||||
filename.CopyTo(buffer.AsSpan(sepSpan.Length));
|
||||
|
||||
return buffer.AsSpan(0, sepSpan.Length + filename.Length);
|
||||
}
|
||||
}
|
||||
} while (widthOk == false);
|
||||
|
||||
if (changedWidth)
|
||||
{
|
||||
// new string(directory) + "...\\" + new string(filename);
|
||||
directory.CopyTo(buffer);
|
||||
sepSpan.CopyTo(buffer.AsSpan(directory.Length));
|
||||
filename.CopyTo(buffer.AsSpan(directory.Length + sepSpan.Length));
|
||||
|
||||
return buffer.AsSpan(0, directory.Length + sepSpan.Length + filename.Length);
|
||||
}
|
||||
else
|
||||
return text;
|
||||
}
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private static long MakeHashCode(
|
||||
ReadOnlySpan<char> text,
|
||||
double textWidth,
|
||||
double dpi,
|
||||
BiaTextTrimmingMode textTrimming)
|
||||
{
|
||||
unchecked
|
||||
{
|
||||
var hashCode = HashCodeMaker.Make(text);
|
||||
|
||||
hashCode = (hashCode * 397) ^ (long) textTrimming;
|
||||
|
||||
return (hashCode * 397) ^ HashCodeMaker.Make(textWidth, dpi);
|
||||
}
|
||||
}
|
||||
|
||||
private readonly LruCache<long, (GlyphRun, double)> _textCache = new LruCache<long, (GlyphRun, double)>(10_0000);
|
||||
private readonly LruCache<long, double> _textWidthCache = new LruCache<long, double>(10_0000);
|
||||
|
||||
private readonly LruCache<long, TranslateTransform> _translateCache = new LruCache<long, TranslateTransform>(1000);
|
||||
|
||||
private readonly IDictionary<int, ushort>? _toGlyphMap;
|
||||
private readonly IDictionary<ushort, double>? _advanceWidthsDict;
|
||||
|
||||
// 最大65536エントリ
|
||||
private readonly Dictionary<int, (ushort GlyphIndex, double AdvanceWidth)>? _glyphDataCache;
|
||||
|
||||
private readonly GlyphTypeface? _glyphTypeface;
|
||||
private readonly ushort _dotGlyphIndex;
|
||||
private readonly double _dotAdvanceWidth;
|
||||
private readonly double _fontSize;
|
||||
private readonly double _fontLineSpacing;
|
||||
|
||||
#if DEBUG
|
||||
// ReSharper disable once UnusedMember.Local
|
||||
private static void MakeGlyphDataTable(FontFamily fontFamily, GlyphTypeface glyphTypeface, double fontSize)
|
||||
{
|
||||
var toGlyphMap = glyphTypeface.CharacterToGlyphMap;
|
||||
var advanceWidthsDict = glyphTypeface.AdvanceWidths;
|
||||
|
||||
toGlyphMap.TryGetValue(' ', out var dummyIndex);
|
||||
|
||||
var glyphIndexArray = new ushort[char.MaxValue + 1];
|
||||
var advanceWidthArray = new double[char.MaxValue + 1];
|
||||
|
||||
for (var i = 0; i <= char.MaxValue; ++i)
|
||||
{
|
||||
if (toGlyphMap.TryGetValue(i, out var glyphIndex) == false)
|
||||
glyphIndex = dummyIndex;
|
||||
|
||||
var advanceWidth = advanceWidthsDict[glyphIndex] * fontSize;
|
||||
|
||||
glyphIndexArray[i] = glyphIndex;
|
||||
advanceWidthArray[i] = advanceWidth;
|
||||
}
|
||||
|
||||
var glyphIndexByteArray = MemoryMarshal.Cast<ushort, byte>(glyphIndexArray).ToArray();
|
||||
var advanceWidthByteArray = MemoryMarshal.Cast<double, byte>(advanceWidthArray).ToArray();
|
||||
|
||||
var dotGlyphIndex = Unsafe.Add(ref MemoryMarshal.GetReference(MemoryMarshal.Cast<byte, ushort>(glyphIndexByteArray)), (IntPtr) '.');
|
||||
var dotAdvanceWidth = Unsafe.Add(ref MemoryMarshal.GetReference(MemoryMarshal.Cast<byte, double>(advanceWidthByteArray)), (IntPtr) '.');
|
||||
|
||||
var sb = new StringBuilder();
|
||||
|
||||
sb.AppendLine("// ReSharper disable All");
|
||||
sb.AppendLine("using System;");
|
||||
sb.AppendLine("using System.Runtime.CompilerServices;");
|
||||
sb.AppendLine("using System.Runtime.InteropServices;");
|
||||
sb.AppendLine("namespace WPFDark.Internals");
|
||||
sb.AppendLine("{");
|
||||
sb.AppendLine("internal partial class TextRendererImpl<TIsDefault>");
|
||||
sb.AppendLine("{");
|
||||
|
||||
sb.AppendLine($"private const double DefaultFontLineSpacing = {fontFamily.LineSpacing};");
|
||||
sb.AppendLine($"private const ushort DefaultDotGlyphIndex = {dotGlyphIndex};");
|
||||
sb.AppendLine($"private const double DefaultDotAdvanceWidth = {dotAdvanceWidth};");
|
||||
|
||||
sb.AppendLine("[MethodImpl(MethodImplOptions.AggressiveInlining)]");
|
||||
sb.AppendLine("private static ref ushort GetDefaultGlyphIndexTable(){");
|
||||
sb.AppendLine("var byteTable = new ReadOnlySpan<byte>(new byte[] {");
|
||||
sb.AppendLine(JoinStrings(glyphIndexByteArray));
|
||||
sb.AppendLine("});");
|
||||
sb.AppendLine("return ref MemoryMarshal.GetReference(MemoryMarshal.Cast<byte, ushort>(byteTable));");
|
||||
sb.AppendLine("}");
|
||||
|
||||
sb.AppendLine("[MethodImpl(MethodImplOptions.AggressiveInlining)]");
|
||||
sb.AppendLine("private static ref double GetDefaultAdvanceWidthTable(){");
|
||||
sb.AppendLine("var byteTable = new ReadOnlySpan<byte>(new byte[] {");
|
||||
sb.AppendLine(JoinStrings(advanceWidthByteArray));
|
||||
sb.AppendLine("});");
|
||||
sb.AppendLine("return ref MemoryMarshal.GetReference(MemoryMarshal.Cast<byte, double>(byteTable));");
|
||||
sb.AppendLine("}");
|
||||
|
||||
sb.AppendLine("}");
|
||||
sb.AppendLine("}");
|
||||
|
||||
var outputDir = Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.UserProfile), "TextRenderer.table.cs");
|
||||
File.WriteAllText(outputDir, sb.ToString());
|
||||
}
|
||||
|
||||
private static string JoinStrings<T>(IEnumerable<T> source)
|
||||
{
|
||||
var sb = new StringBuilder();
|
||||
|
||||
var c = 0;
|
||||
|
||||
foreach (var v in source)
|
||||
{
|
||||
++c;
|
||||
|
||||
sb.Append($"0x{v:x2}");
|
||||
|
||||
if (c > 0 && (c % 32 == 0))
|
||||
sb.AppendLine(",");
|
||||
else
|
||||
sb.Append(',');
|
||||
}
|
||||
|
||||
return sb.ToString();
|
||||
}
|
||||
#endif
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user