Error only if Synedit is opened in second editor

[Borneq]

I have two files (one can be copy of second). This fule must contain both Unicode and Tabs. If I open first tab is Ok, but only next tabs are bad - instead unicode is "?". This is only when Synedit changed to using wordWrap. How locate this error? Any structures must be global ? - how Synedit can distinguish instances?

[Borneq]

I noticed:
1. Error is also in first, If window width is modified
2. No error if don't use TSynEditStringTabExpander.ExpandedString

Error is in TSynEditStringTabExpander.ExpandedString which I modified.
This method is needed? If I type:

Code: Pascal  [Select][+][-]

1. function TSynEditStringTabExpander.ExpandedString(Index: integer): string;
2. var
3.   Line: String;
4.   CharWidths: TPhysicalCharWidths;
5.   i, j, l, ll: Integer;
6. begin
7.   Result := fSynStrings[Index];
8.   exit;  

Is is OK.

Temporary I disabled this method in my editor.
Maybe instead of GetPhysicalCharWidths should be line converted to UTF32 ? Especially, is needed method giving unicode32 code point for cursor position.

[Martin_fr]

Even utf32 has combining codepoints.

But GetPhysicalCharWidths  strings is not about multibyte encoding. It is about the width of some glyphs (full width chars). https://forum.lazarus.freepascal.org/index.php/topic,47747.msg342553.html#msg342553


Maybe the wrap code does something that changes text, without clearing the GetPhysicalCharWidths   cache ( IIRC there is a cache, but needs to be double checked)

[Borneq]

I think, error is whenever is running this method changed by me. (Before was error with binary files), this method is calling when:
- second editor is called
- or simply is modified wirth of SynEdit components
Must be :
- tabs
- Unicode
Probably not must be WordWrap to cause this error.