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dlemstradlemstra
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Added DcmReadDefines.
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‎src/Magick.NET/Formats/Dcm/DcmReadDefines.cs‎

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// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
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// Licensed under the Apache License, Version 2.0.
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using System.Collections.Generic;
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namespace ImageMagick.Formats;
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/// <summary>
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/// Class for defines that are used when a <see cref="MagickFormat.Dcm"/> image is read.
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/// </summary>
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public sealed class DcmReadDefines : IReadDefines
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{
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/// <summary>
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/// Gets the format where the defines are for.
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/// </summary>
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public MagickFormat Format
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=> MagickFormat.Dcm;
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/// <summary>
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/// Gets or sets a value indicating whether the interpretation of the rescale slope should be set.
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/// </summary>
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public bool? Rescale { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether the display range should be set to the
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/// minimum and maximum pixel values.
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/// </summary>
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public bool? ResetDisplayRange { get; set; }
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/// <summary>
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/// Gets or sets the window center.
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/// </summary>
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public double? WindowCenter { get; set; }
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/// <summary>
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/// Gets or sets the window center.
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/// </summary>
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public double? WindowWidth { get; set; }
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/// <summary>
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/// Gets the defines that should be set as a define on an image.
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/// </summary>
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public IEnumerable<IDefine> Defines
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{
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get
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{
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if (Rescale.HasValue)
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yield return new MagickDefine(Format, "rescale", Rescale.Value);
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if (ResetDisplayRange.HasValue && ResetDisplayRange.Value)
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yield return new MagickDefine(Format, "display-range", "reset");
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if (WindowCenter.HasValue && !WindowWidth.HasValue)
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yield return new MagickDefine(Format, "window", $"{WindowCenter}x");
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else if (WindowWidth.HasValue && !WindowCenter.HasValue)
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yield return new MagickDefine(Format, "window", $"x{WindowWidth}");
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else if (WindowCenter.HasValue && WindowWidth.HasValue)
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yield return new MagickDefine(Format, "window", $"{WindowCenter}x{WindowWidth}");
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}
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}
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}

‎tests/Magick.NET.Tests/Formats/Dcm/DcmReadDefinesTests/TheConstructor.cs‎

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// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
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// Licensed under the Apache License, Version 2.0.
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using ImageMagick;
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using ImageMagick.Formats;
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using Xunit;
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namespace Magick.NET.Tests;
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public partial class DcmReadDefinesTests
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{
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public class TheConstructor
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{
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[Fact]
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public void ShouldNotSetAnyDefines()
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{
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using var image = new MagickImage();
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image.Settings.SetDefines(new DcmReadDefines());
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Assert.Null(image.Settings.GetDefine(MagickFormat.Dcm, "display-range"));
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Assert.Null(image.Settings.GetDefine(MagickFormat.Dcm, "rescale"));
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Assert.Null(image.Settings.GetDefine(MagickFormat.Dcm, "window"));
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}
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}
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}

‎tests/Magick.NET.Tests/Formats/Dcm/DcmReadDefinesTests/TheRescaleProperty.cs‎

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// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
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// Licensed under the Apache License, Version 2.0.
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using ImageMagick;
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using ImageMagick.Formats;
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using Xunit;
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namespace Magick.NET.Tests;
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public partial class DcmReadDefinesTests
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{
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public class TheRescaleProperty
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{
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[Fact]
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public void ShoulBeSetWhenTheValueIsFalse()
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{
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var defines = new DcmReadDefines()
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{
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Rescale = false,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("false", image.Settings.GetDefine(MagickFormat.Dcm, "rescale"));
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}
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[Fact]
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public void ShouldBeSetWhenTheValueIsTrue()
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{
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var defines = new DcmReadDefines()
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{
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Rescale = true,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("true", image.Settings.GetDefine(MagickFormat.Dcm, "rescale"));
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}
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}
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}

‎tests/Magick.NET.Tests/Formats/Dcm/DcmReadDefinesTests/TheResetDisplayRangeProperty.cs‎

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// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
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// Licensed under the Apache License, Version 2.0.
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using ImageMagick;
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using ImageMagick.Formats;
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using Xunit;
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namespace Magick.NET.Tests;
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public partial class DcmReadDefinesTests
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{
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public class TheResetDisplayRangeProperty
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{
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[Fact]
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public void ShouldNotBeSetWhenTheValueIsFalse()
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{
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var defines = new DcmReadDefines()
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{
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ResetDisplayRange = false,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Null(image.Settings.GetDefine(MagickFormat.Dcm, "display-range"));
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}
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[Fact]
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public void ShouldBeSetWhenTheValueIsTrue()
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{
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var defines = new DcmReadDefines()
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{
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ResetDisplayRange = true,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("reset", image.Settings.GetDefine(MagickFormat.Dcm, "display-range"));
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}
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}
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}

‎tests/Magick.NET.Tests/Formats/Dcm/DcmReadDefinesTests/TheWindowProperties.cs‎

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// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
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// Licensed under the Apache License, Version 2.0.
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using ImageMagick;
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using ImageMagick.Formats;
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using Xunit;
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namespace Magick.NET.Tests;
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public partial class DcmReadDefinesTests
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{
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public class TheWindowProperties
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{
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[Fact]
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public void ShouldSetTheCorrectValueWhenOnlyCenterIsSet()
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{
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var defines = new DcmReadDefines()
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{
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WindowCenter = 42,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("42x", image.Settings.GetDefine(MagickFormat.Dcm, "window"));
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}
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[Fact]
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public void ShouldSetTheCorrectValueWhenOnlyWidthIsSet()
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{
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var defines = new DcmReadDefines()
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{
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WindowWidth = 42,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("x42", image.Settings.GetDefine(MagickFormat.Dcm, "window"));
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}
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[Fact]
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public void ShouldSetTheCorrectValueWheWidthAndCenterAreSet()
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{
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var defines = new DcmReadDefines()
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{
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WindowCenter = 24,
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WindowWidth = 42,
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};
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using var image = new MagickImage();
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image.Settings.SetDefines(defines);
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Assert.Equal("24x42", image.Settings.GetDefine(MagickFormat.Dcm, "window"));
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}
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}
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}

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