// --------------------------------------------------------------------------------------------------------------------
// <copyright file="Quality.cs" company="James South">
//   Copyright (c) James South.
//   Licensed under the Apache License, Version 2.0.
// </copyright>
// <summary>
//   Encapsulates methods to change the quality component of the image.
// </summary>
// --------------------------------------------------------------------------------------------------------------------

namespace ImageProcessor.Processors
{
    #region Using

    using System;
    using System.Collections.Generic;
    using System.Drawing;

    using ImageProcessor.Core.Common.Exceptions;

    #endregion

    /// <summary>
    /// Encapsulates methods to change the quality component of the image.
    /// </summary>
    public class Quality : IGraphicsProcessor
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="Quality"/> class.
        /// </summary>
        public Quality()
        {
            this.Settings = new Dictionary<string, string>();
        }

        /// <summary>
        /// Gets or sets DynamicParameter.
        /// </summary>
        public dynamic DynamicParameter
        {
            get;
            set;
        }

        /// <summary>
        /// Gets or sets any additional settings required by the processor.
        /// </summary>
        public Dictionary<string, string> Settings
        {
            get;
            set;
        }

        /// <summary>
        /// Processes the image.
        /// </summary>
        /// <param name="factory">
        /// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class containing
        /// the image to process.
        /// </param>
        /// <returns>
        /// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
        /// </returns>
        public Image ProcessImage(ImageFactory factory)
        {
            try
            {
                factory.CurrentImageFormat.Quality = this.DynamicParameter;
            }
            catch (Exception ex)
            {
                throw new ImageProcessingException("Error processing image with " + this.GetType().Name, ex);
            }

            return factory.Image;
        }
    }
}