* Fixed almost all issues
* code comments
* fixed copilot suggestion
* Add Unicode filtering and improve context menu handling
Enabled nullable reference types for better null safety. Added a
Unicode category filter to `CharacterMap` via the new
`ShowUnicodeCategory` property and `OptionSelector`. Updated
rendering logic to dynamically manage visible rows based on the
filter, improving performance and usability.
Refactored menu items to include the Unicode category selector.
Enhanced `TextView` context menu handling to support mouse-based
positioning. Performed miscellaneous code cleanup and added
comments for improved readability and maintainability.
* Fix Unicode rendering and simplify CombiningMarks
Updated `RuneExtensions.GetColumns` to handle specific Unicode glyphs (I Ching symbols) rendered as double-width in Windows Terminal, despite being single-width per Unicode. Added a workaround to return `2` for these glyphs and fallback to `UnicodeCalculator.GetWidth` for others.
Simplified `CombiningMarks` by removing examples for Unicode characters `\u0600` and `\u0301`, streamlining the scenario.
Referenced PR #4255 for context on the workaround.
* Update RuneTests with new Unicode test cases and fixes
Added new test cases for Unicode characters U+d7b0 (ힰ) and
U+f61e () with expected parameters. Updated the test case
for U+4dc0 (䷀) to adjust the second parameter from 1 to 2
and added references to the Microsoft Terminal Unicode
width overrides file and GitHub issue #19389. Existing test
cases for other Unicode characters remain unchanged.
* Update Terminal.Gui/Views/CharMap/CharMap.cs
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Update comments in GetColumns method for clarity
Updated comments in the `GetColumns` method of the `RuneExtensions` class to replace "HACK" with "TODO" and reference issue #4259 instead of pull request #4255. This change clarifies that the code is a temporary measure and should be removed once the issue is resolved. No functional changes were made to the code logic.
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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