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Tab Column Misalignment #412
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I have found a temporary workaround for the bug until it is fixed.
_textEditor.Options.IndentationSize = 1;
_textEditor.Options.ShowTabs = true;
Change TabTextElement class from private to internal. internal sealed class TabTextElement : VisualLineElemen
{
public int TabSize = 0;
...
} Fix Size override of TabGlyphRun. private sealed class TabGlyphRun : DrawableTextRun
{
...
//public override Size Size => default;
public override Size Size
{
get
{
return new Size(_element.Text.WidthIncludingTrailingWhitespace* (_element.TabSize-1), 0);
}
}
...
}
private void CalculateOffsets()
{
var visualOffset = 0;
var textOffset = 0;
int tabOffset= 0;
foreach (var element in _elements)
{
element.VisualColumn = visualOffset;
element.RelativeTextOffset = textOffset;
visualOffset += element.VisualLength;
textOffset += element.DocumentLength;
if(element is SingleCharacterElementGenerator.TabTextElement)
{
(element as SingleCharacterElementGenerator.TabTextElement).TabSize = 4-(tabOffset%4);
tabOffset = 0;
}
else
{
tabOffset = tabOffset + element.DocumentLength;
}
}
VisualLength = visualOffset;
Debug.Assert(textOffset == LastDocumentLine.EndOffset - FirstDocumentLine.Offset);
} |
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When inserting characters before a tab, the tab’s column position does not align as expected.
The expected behavior was as shown in the image below.
AvaloniaEdit 11.0.6 + .net 6.0 + Windows 11 Home
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