/// <summary>
/// Given a list of scans (each of which is a list of 1 or more images),
/// split up the images into multiple lists as described by the SaveSeparator parameter.
/// </summary>
/// <param name="scans"></param>
/// <param name="separator"></param>
/// <returns></returns>
public static IEnumerable<List<ScannedImage>> SeparateScans(IEnumerable<IEnumerable<ScannedImage>> scans, SaveSeparator separator)
{
if (separator == SaveSeparator.FilePerScan)
{
foreach (var scan in scans)
{
yield return scan.ToList();
}
}
else if (separator == SaveSeparator.FilePerPage)
{
foreach (var scan in scans)
{
foreach (var image in scan)
{
yield return new List<ScannedImage> { image };
}
}
}
else if (separator == SaveSeparator.PatchT)
{
var images = new List<ScannedImage>();
foreach (var scan in scans)
{
foreach (var image in scan)
{
if (image.PatchCode == PatchCode.PatchT)
{
image.Dispose();
if (images.Count > 0)
{
yield return images;
images = new List<ScannedImage>();
}
}
else
{
images.Add(image);
}
}
}
if (images.Count > 0)
{
yield return images;
}
}
else
{
yield return scans.SelectMany(x => x.ToList()).ToList();
}
}
/// <summary>
/// Given a list of scans (each of which is a list of 1 or more images),
/// split up the images into multiple lists as described by the SaveSeparator parameter.
/// </summary>
/// <param name="scans"></param>
/// <param name="separator"></param>
/// <returns></returns>
public static IEnumerable <List <ScannedImage> > SeparateScans(IEnumerable <IEnumerable <ScannedImage> > scans, SaveSeparator separator)
{
if (separator == SaveSeparator.FilePerScan)
{
foreach (var scan in scans)
{
yield return(scan.ToList());
}
}
else if (separator == SaveSeparator.FilePerPage)
{
foreach (var scan in scans)
{
foreach (var image in scan)
{
yield return(new List <ScannedImage> {
image
});
}
}
}
else if (separator == SaveSeparator.PatchT)
{
var images = new List <ScannedImage>();
foreach (var scan in scans)
{
foreach (var image in scan)
{
if (image.PatchCode == PatchCode.PatchT)
{
image.Dispose();
if (images.Count > 0)
{
yield return(images);
images = new List <ScannedImage>();
}
}
else
{
images.Add(image);
}
}
}
if (images.Count > 0)
{
yield return(images);
}
}
else
{
yield return(scans.SelectMany(x => x.ToList()).ToList());
}
}
/// <summary>
/// Given a list of scans (each of which is a list of 1 or more images),
/// split up the images into multiple lists as described by the SaveSeparator parameter.
/// </summary>
/// <param name="scans"></param>
/// <param name="separator"></param>
/// <param name="splitSize"></param>
/// <returns></returns>
public static IEnumerable <List <ScannedImage> > SeparateScans(IEnumerable <IEnumerable <ScannedImage> > scans, SaveSeparator separator, int splitSize = 1)
{
if (separator == SaveSeparator.FilePerScan)
{
foreach (var scan in scans)
{
yield return(scan.ToList());
}
}
else if (separator == SaveSeparator.FilePerPage)
{
splitSize = Math.Max(splitSize, 1);
foreach (var scan in scans.Select(x => x.ToList()))
{
for (int i = 0; i < scan.Count; i += splitSize)
{
yield return(scan.Skip(i).Take(splitSize).ToList());
}
}
}
else if (separator == SaveSeparator.PatchT)
{
var images = new List <ScannedImage>();
foreach (var scan in scans)
{
foreach (var image in scan)
{
if (image.PatchCode == PatchCode.PatchT)
{
image.Dispose();
if (images.Count > 0)
{
yield return(images);
images = new List <ScannedImage>();
}
}
else
{
images.Add(image);
}
}
}
if (images.Count > 0)
{
yield return(images);
}
}
else
{
yield return(scans.SelectMany(x => x.ToList()).ToList());
}
}