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/*
* GNU AFFERO GENERAL PUBLIC LICENSE
* Version 3, 19 November 2007
* Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
using System.Collections.Generic;
namespace UVtools.Core
{
/// <summary>
/// Represents a file extension for slicer file formats
/// </summary>
public sealed class FileExtension
{
#region Properties
/// <summary>
/// Gets the extension name without the dot (.)
/// </summary>
public string Extension { get; }
/// <summary>
/// Gets the extension description
/// </summary>
public string Description { get; }
/// <summary>
/// Gets the file filter for open and save dialogs
/// </summary>
public string Filter => $@"{Description} (*.{Extension})|*.{Extension}";
#endregion
#region Constructor
/// <summary>
/// Constructor
/// </summary>
/// <param name="extension">The extension name without the dot (.)</param>
/// <param name="description">The extension description</param>
public FileExtension(string extension, string description)
{
Extension = extension;
Description = description;
}
#endregion
#region Overrides
public override string ToString()
{
return $"{nameof(Extension)}: {Extension}, {nameof(Description)}: {Description}";
}
private bool Equals(FileExtension other)
{
return Extension == other.Extension;
}
public override bool Equals(object obj)
{
return ReferenceEquals(this, obj) || obj is FileExtension other && Equals(other);
}
public override int GetHashCode()
{
return (Extension != null ? Extension.GetHashCode() : 0);
}
private sealed class ExtensionEqualityComparer : IEqualityComparer<FileExtension>
{
public bool Equals(FileExtension x, FileExtension y)
{
if (ReferenceEquals(x, y)) return true;
if (ReferenceEquals(x, null)) return false;
if (ReferenceEquals(y, null)) return false;
if (x.GetType() != y.GetType()) return false;
return x.Extension == y.Extension;
}
public int GetHashCode(FileExtension obj)
{
return (obj.Extension != null ? obj.Extension.GetHashCode() : 0);
}
}
public static IEqualityComparer<FileExtension> ExtensionComparer { get; } = new ExtensionEqualityComparer();
#endregion
}
}
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