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namespace OpenTap
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{
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/// <summary> Marks that the annotated object is a picture. </summary>
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public interface IPictureAnnotation : IAnnotation
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{
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/// <summary>
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/// Specifies the path to the picture
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/// </summary>
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string Source { get; }
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/// <summary>
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/// Specifies a description of the picture. Can be used in non-gui applications as an alternative to showing the picture.
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/// </summary>
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string Description { get; }
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}
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class PictureAnnotation : IPictureAnnotation, IOwnedAnnotation
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{
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readonly AnnotationCollection annotation;
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public PictureAnnotation(AnnotationCollection annotation)
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{
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this.annotation = annotation;
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}
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public string Source { get; set; }
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public string Description { get; set; }
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public void Read(object source)
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{
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if (source == null) return;
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var mem = annotation.Get<IObjectValueAnnotation>()?.Value;
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if (mem is IPicture picture)
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{
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Source = picture.Source;
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Description = picture.Description;
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}
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}
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public void Write(object source)
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{
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var objSource = annotation.Get<IObjectValueAnnotation>();
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if (objSource == null) return;
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var mem = objSource?.Value;
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if (mem == null)
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mem = new Picture();
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if (mem is Picture picture)
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{
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picture.Source = Source;
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picture.Description = Description;
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}
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if (mem != null)
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annotation.Get<IObjectValueAnnotation>().Value = mem;
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}
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}
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/// <summary>
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/// Represents a picture resource
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/// </summary>
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public interface IPicture
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{
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/// <summary>
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/// Specifies the path to the picture
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/// </summary>
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string Source { get; }
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/// <summary>
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/// Specifies a description of the picture
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/// </summary>
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string Description { get; }
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}
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/// <summary>
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/// Represents a picture resource
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/// </summary>
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public class Picture : IPicture
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{
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/// <summary> Specifies the path to the picture. </summary>
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[FilePath]
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[Display("Picture File")]
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public string Source { get; set; }
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/// <summary> Specifies a description of the picture. </summary>
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public string Description { get; set; }
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/// <summary> Returns true if the two pictures are the same with respect to Source and Description. </summary>
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public override bool Equals(object obj) =>
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obj is Picture pic && pic.Source == Source && pic.Description == Description;
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/// <summary> Calculates a hash based on source and description. </summary>
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public override int GetHashCode() => (int)(0xaacd012
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+ (Description?.GetHashCode() ?? 0) * 0x801423bb
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+ (Source?.GetHashCode() ?? 0) * 0xf00b0834);
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}
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}
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