naps2/NAPS2.Lib.WinForms/Util/StringWrapper.cs

using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace NAPS2.Util;

/// <summary>
/// A helper class for inserting newlines to break up overly wide text.
/// </summary>
public class StringWrapper
{
    public string Wrap(string text, int maxWidth, Font drawingFont)
    {
        var result = new StringBuilder();
        var parts = new Queue<string>(text.Split(' '));
        while (parts.Count > 0)
        {
            var nextParts = new List<string>();
            do
            {
                nextParts.Add(parts.Dequeue());
            } while (
                parts.Count > 0 && TextRenderer.MeasureText(string.Join(" ", nextParts.Concat(new[] { parts.Peek() })).Replace("&", ""),
                    drawingFont).Width < maxWidth);
            result.Append(string.Join(" ", nextParts));
            if (parts.Count > 0)
            {
                result.Append("\n");
            }
        }
        return result.ToString();
    }
}