Fixes #3418. TextFormatter bugs.

[BDisp]

Fixes

• Fixes TextFormatter bugs #3418

Proposed Changes/Todos

• Fix somes bugs on calling GetWidestLineLength method
• Allowing resetting alignments when justify checkbox is checked on the TextAlignmentsAndDirections scenario
• Add unit tests for multiline justified horizontal and vertical

Pull Request checklist:

• I've named my PR in the form of "Fixes #issue. Terse description."
• My code follows the style guidelines of Terminal.Gui - if you use Visual Studio, hit CTRL-K-D to automatically reformat your files before committing.
• My code follows the Terminal.Gui library design guidelines
• I ran dotnet test before commit
• I have made corresponding changes to the API documentation (using /// style comments)
• My changes generate no new warnings
• I have checked my code and corrected any poor grammar or misspellings
• I conducted basic QA to assure all features are working

[BDisp]

Horizontal:

Vertical:

Horizontal Justified:

Vertical Justified:

Horizontal without wrap:

Vertical without wrap:

Horizontal with wrap:

Vertical with wrap:

Horizontal Justified with wrap:

Vertical Justified with wrap:

Horizontal with wrap and 2 lines:

Vertical with wrap and 2 lines:

The horizontal and vertical justified behavior with word wrap is considered the left and top alignments respectively, for obvious reason, of course.

[BDisp]

@tig I fixed the issue you mentioned on the #3418 (comment). Maybe it help you with your PR. Cheers.

[BDisp]

I already have this working well here and I'll submit a PR to your branch #3416 after I reviewed it.

[BDisp]

@tig shouldn't labels respect new lines? Or am I mistaken? Notice that there is a new line between the two words.

[tig]

Yes, if Text has new lines in it, they should be respected.

[tig]

I am not going to spend any time looking at this PR.

If you want to continue to use it, please mark it as draft.