Files
Terminal.Gui/Examples/UICatalog/Scenarios/CharacterMap
Tig 4c6145cee9 Fixes #4233 - CharMap rendering (#4255)
* 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.

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-09-27 13:26:44 -06:00
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