Libation/LibationWinForms/BookLiberation/DecryptForm.cs

using System;
using System.Windows.Forms;
using Dinah.Core.Drawing;
using Dinah.Core.IO;
using Dinah.Core.Windows.Forms;

namespace LibationWinForms.BookLiberation
{
    public partial class DecryptForm : Form
    {
		public DecryptForm()
        {
            InitializeComponent();
        }

        System.IO.TextWriter origOut { get; } = Console.Out;
        private void DecryptForm_Load(object sender, EventArgs e)
        {
            // redirect Console.WriteLine to console, textbox
            var multiLogger = new MultiTextWriter(
                origOut,
                new RichTextBoxTextWriter(this.rtbLog),
                new SerilogTextWriter());
            Console.SetOut(multiLogger);
        }

        private void DecryptForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            // restore original
            Console.SetOut(origOut);
        }

        // book info
        string title;
        string authorNames;
        string narratorNames;

        public void SetTitle(string title)
        {
            this.UIThread(() => this.Text = " Decrypting " + title);
            this.title = title;
            updateBookInfo();
        }
        public void SetAuthorNames(string authorNames)
        {
            this.authorNames = authorNames;
            updateBookInfo();
        }
        public void SetNarratorNames(string narratorNames)
        {
            this.narratorNames = narratorNames;
            updateBookInfo();
        }

        // thread-safe UI updates
        private void updateBookInfo()
            => bookInfoLbl.UIThread(() => bookInfoLbl.Text = $"{title}\r\nBy {authorNames}\r\nNarrated by {narratorNames}");

        public void SetCoverImage(System.Drawing.Image coverImage)
            => pictureBox1.UIThread(() => pictureBox1.Image = coverImage);

        public void UpdateProgress(int percentage)
        {
            if (percentage == 0)
                remainingTimeLbl.UIThread(() => remainingTimeLbl.Text = "ETA:\r\n0 sec");

            if (percentage == int.MaxValue)
                progressBar1.UIThread(() => progressBar1.Style = ProgressBarStyle.Marquee);
            else
                progressBar1.UIThread(() =>
                {
                    progressBar1.Value = percentage;
                    progressBar1.Style = ProgressBarStyle.Blocks;
                });
        }

        public void UpdateRemainingTime(TimeSpan remaining)
        {
            remainingTimeLbl.UIThread(() => remainingTimeLbl.Text = $"ETA:\r\n{(int)remaining.TotalSeconds} sec");
        }
    }
}