gui-cs.Terminal.Gui/UICatalog/Scenarios/CombiningMarks.cs

using Terminal.Gui;

namespace UICatalog.Scenarios;

[ScenarioMetadata ("Combining Marks", "Illustrates how Unicode Combining Marks work (or don't).")]
[ScenarioCategory ("Text and Formatting")]
public class CombiningMarks : Scenario
{
    public override void Main ()
    {
        Application.Init ();
        ConfigurationManager.Themes!.Theme = Theme;
        ConfigurationManager.Apply ();
        var top = new Toplevel { ColorScheme = Colors.ColorSchemes [TopLevelColorScheme] };

        top.DrawContentComplete += (s, e) =>
                                   {
                                       Application.Driver?.Move (0, 0);
                                       Application.Driver?.AddStr ("Terminal.Gui only supports combining marks that normalize. See Issue #2616.");
                                       Application.Driver?.Move (0, 2);
                                       Application.Driver?.AddStr ("\u0301\u0301\u0328<- \"\\u301\\u301\\u328]\" using AddStr.");
                                       Application.Driver?.Move (0, 3);
                                       Application.Driver?.AddStr ("[a\u0301\u0301\u0328]<- \"[a\\u301\\u301\\u328]\" using AddStr.");
                                       Application.Driver?.Move (0, 4);
                                       Application.Driver?.AddRune ('[');
                                       Application.Driver?.AddRune ('a');
                                       Application.Driver?.AddRune ('\u0301');
                                       Application.Driver?.AddRune ('\u0301');
                                       Application.Driver?.AddRune ('\u0328');
                                       Application.Driver?.AddRune (']');
                                       Application.Driver?.AddStr ("<- \"[a\\u301\\u301\\u328]\" using AddRune for each.");
                                   };

        Application.Run (top);
        top.Dispose ();
        Application.Shutdown ();
    }
}