设置不存在的字体导致软件无法打开

[heyXiaoT]

我设置(缺省字体)一个不存在的字体，软件就无法打开了。后续是修改了 C:\Users${home}\AppData\Roaming\SourceGit\preference.json 文件中的字体设置项才能正常打开软件。

建议找不到字体就使用默认字体。

软件版本：8.42
系统版本：win11 24H2

[love-linger]

不应该呀，软件内置了两个字体（Inter和JetBrainsMono），自定义字体也会Fallback到内置的字体上。比如：填写Microsoft YaHei UI，实际上使用的是 Microsoft YaHei UI, Inter

上图中，我直接设置了两个非法字体，都可以正常显示

[love-linger]

如果C:\Users\${home}\AppData\Roaming\SourceGit\目录下有Crash文件，发上来，我看一下呢

[heyXiaoT]

我刚刚经过测试，发现了具体的问题；

1. 不存在的字体设置成 Microsoft Y 不影响启动

2. 不存在的字体设置成 Microsoft Y 就无法启动

PS：差异是中间的空格，2的Y前面有两个空格

以下是crash文件：

Crash::: System.FormatException: One of the identified items was in an invalid format.

----------------------------
Version: 8.42.0.0
OS: Microsoft Windows NT 10.0.26100.0
Framework: .NETCoreApp,Version=v9.0
Source: <unknown>
---------------------------

   at Avalonia.Utilities.StringTokenizer.SkipToNextToken(Char) + 0xcc
   at Avalonia.Utilities.StringTokenizer.TryReadToken(Char) + 0x90
   at Avalonia.Utilities.StringTokenizer.TryReadString(String&, Nullable`1) + 0x2e
   at Avalonia.Utilities.StringTokenizer.ReadString(Nullable`1) + 0x25
   at Avalonia.Media.Fonts.FontCollectionBase.TryGetStyle(String&, FontStyle&) + 0x8f
   at Avalonia.Media.Fonts.FontCollectionBase.GetImplicitTypeface(Typeface, String&) + 0x65
   at Avalonia.Media.Fonts.SystemFontCollection.TryGetGlyphTypeface(String, FontStyle, FontWeight, FontStretch, IGlyphTypeface&) + 0x123
   at Avalonia.Media.FontManager.TryGetGlyphTypeface(Typeface, IGlyphTypeface&) + 0x296
   at Avalonia.Media.Typeface.get_GlyphTypeface() + 0x51
   at Avalonia.Media.TextFormatting.TextRunProperties.get_CachedGlyphTypeface() + 0x7d
   at Avalonia.Media.TextFormatting.TextCharacters.CreateShapeableRun(ReadOnlyMemory`1, TextRunProperties, SByte, FontManager, TextRunProperties&) + 0xe3
   at Avalonia.Media.TextFormatting.TextCharacters.GetShapeableCharacters(ReadOnlyMemory`1, SByte, FontManager, TextRunProperties&, FormattingObjectPool.RentedList`1) + 0x72
   at Avalonia.Media.TextFormatting.TextFormatterImpl.CoalesceLevels(IReadOnlyList`1, ReadOnlySpan`1, FontManager, FormattingObjectPool.RentedList`1) + 0x3c9
   at Avalonia.Media.TextFormatting.TextFormatterImpl.ShapeTextRuns(IReadOnlyList`1, TextParagraphProperties, FormattingObjectPool, FontManager, FlowDirection&) + 0x3aa
   at Avalonia.Media.TextFormatting.TextFormatterImpl.FormatLine(ITextSource, Int32, Double, TextParagraphProperties, TextLineBreak) + 0x11c
   at Avalonia.Media.TextFormatting.TextLayout.CreateTextLines() + 0x196
   at Avalonia.Media.TextFormatting.TextLayout..ctor(ITextSource, TextParagraphProperties, TextTrimming, Double, Double, Int32) + 0x96
   at Avalonia.Controls.TextBlock.CreateTextLayout(String) + 0x314
   at Avalonia.Controls.TextBlock.get_TextLayout() + 0x4c
   at Avalonia.Controls.TextBlock.MeasureOverride(Size) + 0x198
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x449
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness, Thickness) + 0x183
   at Avalonia.Controls.Border.MeasureOverride(Size) + 0x96
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness, Thickness) + 0x183
   at Avalonia.Controls.Presenters.ContentPresenter.MeasureOverride(Size) + 0x71
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.StackPanel.MeasureOverride(Size) + 0x1db
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Presenters.ScrollContentPresenter.MeasureOverride(Size) + 0xd8
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x557
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness, Thickness) + 0x183
   at Avalonia.Controls.Border.MeasureOverride(Size) + 0x96
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.StackPanel.MeasureOverride(Size) + 0x1db
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Presenters.ScrollContentPresenter.MeasureOverride(Size) + 0xd8
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x449
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x449
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness, Thickness) + 0x183
   at Avalonia.Controls.Presenters.ContentPresenter.MeasureOverride(Size) + 0x71
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x449
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Controls.Grid.MeasureCell(Int32, Boolean) + 0x12b
   at Avalonia.Controls.Grid.MeasureCellsGroup(Int32, Size, Boolean, Boolean, Boolean&) + 0xb0
   at Avalonia.Controls.Grid.MeasureOverride(Size) + 0x5b5
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness, Thickness) + 0x183
   at Avalonia.Controls.Presenters.ContentPresenter.MeasureOverride(Size) + 0x71
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable, Size, Thickness) + 0xbc
   at Avalonia.Controls.Primitives.VisualLayerManager.MeasureOverride(Size) + 0xb6
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Layout.Layoutable.MeasureCore(Size) + 0x197
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.Layoutable.MeasureOverride(Size) + 0x7f
   at Avalonia.Controls.Window.MeasureOverride(Size) + 0x1b2
   at Avalonia.Controls.WindowBase.MeasureCore(Size) + 0x52
   at Avalonia.Layout.Layoutable.Measure(Size) + 0xe6
   at Avalonia.Layout.LayoutManager.Measure(Layoutable) + 0xe8
   at Avalonia.Layout.LayoutManager.ExecuteInitialLayoutPass() + 0x21
   at Avalonia.Controls.Window.ShowCore(Window) + 0x267
   at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.ShowMainWindow() + 0x16
   at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.StartCore(String[]) + 0x32
   at SourceGit.App.Main(String[] args) + 0xe6

[heyXiaoT]

可以查看该配置文件，如果有两个空格则无法启动。

[love-linger]

嗯，我按照您的方法，已经复现该问题。

[gadfly3173]

看起来Avalonia不能处理字体名称中有连续空格的情况，可能需要在设置字体时删除多余的空格

[love-linger]

我也看到这块代码了，我在想如何处理这个

[love-linger]

已经提交了修复，你可以从Github Action上下载最新的包