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82 lines
2.8 KiB
82 lines
2.8 KiB
// <copyright file="PngEncoderOptions.cs" company="James Jackson-South">
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// Copyright (c) James Jackson-South and contributors.
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// Licensed under the Apache License, Version 2.0.
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// </copyright>
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namespace ImageSharp.Formats
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{
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using Quantizers;
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/// <summary>
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/// Encapsulates the options for the <see cref="PngEncoder"/>.
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/// </summary>
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public sealed class PngEncoderOptions : EncoderOptions, IPngEncoderOptions
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="PngEncoderOptions"/> class.
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/// </summary>
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public PngEncoderOptions()
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{
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="PngEncoderOptions"/> class.
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/// </summary>
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/// <param name="options">The options for the encoder.</param>
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private PngEncoderOptions(IEncoderOptions options)
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: base(options)
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{
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}
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/// <summary>
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/// Gets or sets the quality of output for images.
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/// </summary>
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public int Quality { get; set; }
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/// <summary>
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/// Gets or sets the png color type
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/// </summary>
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public PngColorType PngColorType { get; set; } = PngColorType.RgbWithAlpha;
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/// <summary>
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/// Gets or sets the compression level 1-9.
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/// <remarks>Defaults to 6.</remarks>
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/// </summary>
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public int CompressionLevel { get; set; } = 6;
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/// <summary>
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/// Gets or sets the gamma value, that will be written
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/// the the stream, when the <see cref="WriteGamma"/> property
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/// is set to true. The default value is 2.2F.
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/// </summary>
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/// <value>The gamma value of the image.</value>
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public float Gamma { get; set; } = 2.2F;
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/// <summary>
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/// Gets or sets quantizer for reducing the color count.
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/// </summary>
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public IQuantizer Quantizer { get; set; }
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/// <summary>
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/// Gets or sets the transparency threshold.
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/// </summary>
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public byte Threshold { get; set; } = 0;
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/// <summary>
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/// Gets or sets a value indicating whether this instance should write
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/// gamma information to the stream. The default value is false.
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/// </summary>
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public bool WriteGamma { get; set; }
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/// <summary>
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/// Converts the options to a <see cref="IPngEncoderOptions"/> instance with a
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/// cast or by creating a new instance with the specfied options.
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/// </summary>
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/// <param name="options">The options for the encoder.</param>
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/// <returns>The options for the <see cref="PngEncoder"/>.</returns>
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internal static IPngEncoderOptions Create(IEncoderOptions options)
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{
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return options as IPngEncoderOptions ?? new PngEncoderOptions(options);
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}
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}
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}
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