using System;
using System.Collections.Generic;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Tango.RemoteDesktop.Encoders
{
    /// <summary>
    /// Represents an <see cref="IFrame"/> PNG encoder.
    /// </summary>
    /// <seealso cref="Tango.RemoteDesktop.FrameEncoder" />
    public class PngEncoder : FrameEncoder
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="PngEncoder"/> class.
        /// </summary>
        /// <param name="frame">The frame.</param>
        public PngEncoder(IFrame frame) : base(frame)
        {
        }

        /// <summary>
        /// Returns a stream containing the encoded frame.
        /// </summary>
        /// <returns></returns>
        public override MemoryStream ToStream()
        {
            MemoryStream ms = new MemoryStream();
            Frame.ToBitmap().Save(ms, ImageFormat.Png);
            return ms;
        }
    }
}