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/* ------------------------------------------------------------------------- */
//
// Copyright (c) 2010 CubeSoft, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
/* ------------------------------------------------------------------------- */
using Cube.FileSystem;
using System.Collections.Generic;
using System.Linq;
namespace Cube.Pdf.Ghostscript
{
/* --------------------------------------------------------------------- */
///
/// ImageConverter
///
/// <summary>
/// Provides functionality to convert to raster image format such as
/// PNG.
/// </summary>
///
/* --------------------------------------------------------------------- */
public class ImageConverter : Converter
{
#region Constructors
/* ----------------------------------------------------------------- */
///
/// ImageConverter
///
/// <summary>
/// Initializes a new instance of the ImageConverter class with the
/// specified format.
/// </summary>
///
/// <param name="format">Target format.</param>
///
/* ----------------------------------------------------------------- */
public ImageConverter(Format format) : this(format, new IO()) { }
/* ----------------------------------------------------------------- */
///
/// ImageConverter
///
/// <summary>
/// Initializes a new instance of the ImageConverter class with the
/// specified format.
/// </summary>
///
/// <param name="format">Target format.</param>
/// <param name="io">I/O handler.</param>
///
/* ----------------------------------------------------------------- */
public ImageConverter(Format format, IO io) : this(format, io, SupportedFormats) { }
/* ----------------------------------------------------------------- */
///
/// ImageConverter
///
/// <summary>
/// Initializes a new instance of the ImageConverter class with the
/// specified format.
/// </summary>
///
/// <param name="format">Target format.</param>
/// <param name="io">I/O handler.</param>
/// <param name="supported">Collection of supported formats.</param>
///
/* ----------------------------------------------------------------- */
protected ImageConverter(Format format, IO io, IEnumerable<Format> supported) :
base(format, io, supported) { }
#endregion
#region Properties
/* ----------------------------------------------------------------- */
///
/// SupportedFormats
///
/// <summary>
/// Gets the collection of supported formats.
/// </summary>
///
/* ----------------------------------------------------------------- */
public static new IEnumerable<Format> SupportedFormats { get; } = new HashSet<Format>
{
Format.Psd,
Format.PsdRgb,
Format.PsdCmyk,
Format.PsdCmykog,
Format.Jpeg,
Format.Jpeg24bppRgb,
Format.Jpeg32bppCmyk,
Format.Jpeg8bppGrayscale,
Format.Png,
Format.Png24bppRgb,
Format.Png32bppArgb,
Format.Png4bppIndexed,
Format.Png8bppIndexed,
Format.Png8bppGrayscale,
Format.Png1bppMonochrome,
Format.Bmp,
Format.Bmp24bppRgb,
Format.Bmp32bppArgb,
Format.Bmp4bppIndexed,
Format.Bmp8bppIndexed,
Format.Bmp8bppGrayscale,
Format.Bmp1bppMonochrome,
Format.Tiff,
Format.Tiff12bppRgb,
Format.Tiff24bppRgb,
Format.Tiff48bppRgb,
Format.Tiff32bppCmyk,
Format.Tiff64bppCmyk,
Format.Tiff8bppGrayscale,
Format.Tiff1bppMonochrome,
};
/* ----------------------------------------------------------------- */
///
/// AntiAlias
///
/// <summary>
/// Gets or sets a value indicating whether anti-aliasing is
/// enabled.
/// </summary>
///
/* ----------------------------------------------------------------- */
public bool AntiAlias { get; set; } = true;
#endregion
#region Implementations
/* ----------------------------------------------------------------- */
///
/// OnCreateArguments
///
/// <summary>
/// Occurs when creating Ghostscript API arguments.
/// </summary>
///
/// <returns>Collection of arguments.</returns>
///
/* ----------------------------------------------------------------- */
protected override IEnumerable<Argument> OnCreateArguments() =>
base.OnCreateArguments()
.Concat(CreateAntiAlias());
/* ----------------------------------------------------------------- */
///
/// CreateAntiAlias
///
/// <summary>
/// Creates the collection of arguments representing anti-aliasing.
/// </summary>
///
/* ----------------------------------------------------------------- */
private IEnumerable<Argument> CreateAntiAlias() =>
AntiAlias ?
new[]
{
new Argument("GraphicsAlphaBits", 4),
new Argument("TextAlphaBits", 4),
} :
new Argument[0];
#endregion
}
}