ImageUtility 1.3.1

public partial class ImageUtilityTester : Form
{
    public ImageUtilityTester()
    {
        Action<string> progress = (v) => { Console.WriteLine(v); };

        //Show dialog modeless
        FloatingImageViewer floatingImageViewer = new FloatingImageViewer("Image")
        {
            TopMost = true,
        };
        floatingImageViewer.ToolStripButtonPrev.Visible = floatingImageViewer.ToolStripButtonNext.Visible = false;

        ListBox lb = new ListBox() { Parent = this, Dock = DockStyle.Top, Height = 300, };
        lb.SelectedIndexChanged += (sender, e) =>
        {
            floatingImageViewer.Reset(lb.Text);
            floatingImageViewer.Title = lb.Text;
        };

        lb.ContextMenuStrip = new ContextMenuStrip();
        ToolStripMenuItem tsmiFloatingImageViewer = new ToolStripMenuItem() { Text = "Show", };
        lb.ContextMenuStrip.Items.Add(tsmiFloatingImageViewer);
        tsmiFloatingImageViewer.Click += (sender, e) =>
        {
            floatingImageViewer.Show();
        };

        PictureBoxEx pictureBoxEx = new PictureBoxEx(progress, 1.0)
        {
            Height = 400
        };

        Controls.Add(pictureBoxEx.Panel);

        Controls.Add(pictureBoxEx.ToolStrip);
        var binaryImages = new List<byte[]>();
        var imageidx = 0;
        var toolStripMenuItemMultipleImages = new ToolStripMenuItem() { Text = "Multiple images", };

        Action resetImage = () =>
        {
            pictureBoxEx.ResetImage(binaryImages[imageidx]);
            pictureBoxEx.ToolStripButtonPrev.Enabled = imageidx != 0;
            pictureBoxEx.ToolStripButtonNext.Enabled = imageidx != binaryImages.Count - 1;
        };

        Action SelectFiles = () =>
        {
            binaryImages.Clear();
            var files = ImageHelper.ShowMultipleFileSelectDialog();
            foreach (var f in files)
            {
                using (System.IO.FileStream fs = new System.IO.FileStream(f, System.IO.FileMode.Open, System.IO.FileAccess.Read))
                {
                    var data = new byte[fs.Length];
                    fs.Read(data, 0, data.Length);
                    if (ImageHelper.IsImage(data))
                    {
                        binaryImages.Add(data);
                    }
                }
            }
        };

        toolStripMenuItemMultipleImages.Click += (sender, e) =>
        {
            SelectFiles();

            if (binaryImages.Count > 0)
            {
                imageidx = 0;
                resetImage();
            }
        };

        pictureBoxEx.ToolStripButtonPrev.Click += (sender, e) =>
          {
              if (imageidx > 0)
              {
                  imageidx--;
                  resetImage();
              }
          };

        pictureBoxEx.ToolStripButtonNext.Click += (sender, e) =>
          {
              if (imageidx < binaryImages.Count - 1)
              {
                  imageidx++;
                  resetImage();
              }
          };

        pictureBoxEx.ToolStripMenuItemFile.DropDownItems.Add(new ToolStripSeparator());
        pictureBoxEx.ToolStripMenuItemFile.DropDownItems.Add(toolStripMenuItemMultipleImages);

        Controls.Add(pictureBoxEx.ToolStrip);
        Controls.Add(pictureBoxEx.Menu);

        var toolStripMenuItemShowImageDialog = new ToolStripMenuItem() { Text = "ImageViewer", };
        pictureBoxEx.ToolStripMenuItemFile.DropDownItems.Add(new ToolStripSeparator());
        pictureBoxEx.ToolStripMenuItemFile.DropDownItems.Add(toolStripMenuItemShowImageDialog);

        toolStripMenuItemShowImageDialog.Click += (sender, e) =>
        {
            SelectFiles();
            if (binaryImages.Count > 0)
            {
                ImageViewer.ShowDialog(binaryImages, 0.3);
            }
        };

        var toolStripMenuItemShowImage = new ToolStripMenuItem() { Text = "FloatingImageViewer", };
        pictureBoxEx.ToolStripMenuItemFile.DropDownItems.Add(toolStripMenuItemShowImage);

        toolStripMenuItemShowImage.Click += (sender, e) =>
        {
            var files = ImageHelper.ShowMultipleFileSelectDialog();
            if (files.Length > 0)
            {
                lb.Items.Clear();
                lb.Items.AddRange(files);
                if (lb.Items.Count > 0)
                {
                    floatingImageViewer.Reset(lb.Items[0].ToString());
                    floatingImageViewer.Title = lb.Items[0].ToString();
                }
                floatingImageViewer.Show();
            }
        };

        StartPosition = FormStartPosition.CenterScreen;
        ClientSize = new Size(800, 600);
    }
}