MultiTerm/MultiTerm.Wpf.CustomControl/MultiFormatTextBox/Format.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows;
using MultiTerm.Core.Types;

namespace MultiTerm.Wpf.CustomControl;

internal class Format
{
    private readonly string? backgroundColorResourceName;

    public string Name { get; set; }
    public Brush BackgroundBrush { get; set; }
    public FormatType AssociatedFormatType { get; set; }
    public Predicate<Key> IsKeyValid { get; set; }
    public Format(string name, Brush backgroundBrush, FormatType associatedFormatType, Predicate<Key> keyValidator)
    {
        this.Name = name;
        this.BackgroundBrush = backgroundBrush;
        this.AssociatedFormatType = associatedFormatType;
        this.IsKeyValid = keyValidator;
    }
    public Format(string name, string backgroundColorResourceName, FormatType associatedFormatType, Predicate<Key> keyValidator)
    {
        this.Name = name;
        this.backgroundColorResourceName = backgroundColorResourceName;
        this.BackgroundBrush = Brushes.White;  // set background brush to white
        this.AssociatedFormatType = associatedFormatType;
        this.IsKeyValid = keyValidator;
    }
    public static List<string> GetListOfNames(IEnumerable<Format> formats)
    {
        return formats.Select(item => item.Name).ToList();
    }
    public static void UpdateBackgroundBrushesFromResources(FrameworkElement fwElement, IEnumerable<Format> formats)
    {
        if (fwElement == null) throw new ArgumentNullException(nameof(fwElement));

        foreach (var format in formats)
        {
            // if resource name not set => skip
            if (format.backgroundColorResourceName == null) continue;

            // get background brush color from resources
            try
            {
                format.BackgroundBrush = (SolidColorBrush)fwElement.FindResource(format.backgroundColorResourceName);
            }
            catch (Exception) { continue; } // ignore 
        }
    }
}