/// <summary>
/// Filters a list of Chunks, keeping those which match the predicate
/// </summary>
/// <remarks>The original list is not altered</remarks>
/// <param name="list"></param>
/// <param name="predicateKeep"></param>
/// <returns></returns>
public static List <PngChunk> FilterList(List <PngChunk> list, IChunkPredicate predicateKeep)
{
List <PngChunk> result = new List <PngChunk>();
foreach (PngChunk element in list)
{
if (predicateKeep.Matches(element))
{
result.Add(element);
}
}
return(result);
}
/// <summary>
/// Filters a list of Chunks, removing those which match the predicate
/// </summary>
/// <remarks>The original list is not altered</remarks>
/// <param name="list"></param>
/// <param name="predicateRemove"></param>
/// <returns></returns>
public static int TrimList(List <PngChunk> list, IChunkPredicate predicateRemove)
{
int cont = 0;
for (int i = list.Count - 1; i >= 0; i--)
{
if (predicateRemove.Matches(list[i]))
{
list.RemoveAt(i);
cont++;
}
}
return(cont);
}
