public DicomFileEqualityComparer(IEnumerable <DicomTag> ignoredTags)
{
EnsureArg.IsNotNull(ignoredTags, nameof(ignoredTags));
_ignoredTags = ignoredTags;
_metadataComparer = new DicomItemCollectionEqualityComparer(_ignoredTags);
_datasetComparer = new DicomDatasetEqualityComparer(_ignoredTags);
}
bool IEqualityComparer <DicomFile> .Equals(DicomFile x, DicomFile y)
{
if (x == null || y == null)
{
return(object.ReferenceEquals(x, y));
}
IEqualityComparer <IEnumerable <DicomItem> > metadataComparer = new DicomItemCollectionEqualityComparer();
if (!metadataComparer.Equals(x.FileMetaInfo, y.FileMetaInfo))
{
return(false);
}
IEqualityComparer <DicomDataset> dataSetComparer = new DicomDatasetEqualityComparer();
return(dataSetComparer.Equals(x.Dataset, y.Dataset));
}
public bool Equals(DicomDataset x, DicomDataset y)
{
if (x == null || y == null)
{
return(object.ReferenceEquals(x, y));
}
// Compare DicomItems except PixelData, since DicomItemCollectionEqualityComparer cannot handle it
IEqualityComparer <IEnumerable <DicomItem> > dicomItemsComparaer = new DicomItemCollectionEqualityComparer(_ignoredTags.Concat(new[] { DicomTag.PixelData }));
if (!dicomItemsComparaer.Equals(x, y))
{
return(false);
}
IEqualityComparer <DicomPixelData> dicomPixelDataComparer = new DicomPixelDataEqualityComparer();
// Compare PixelData
return(dicomPixelDataComparer.Equals(DicomPixelData.Create(x), DicomPixelData.Create(y)));
}