public static FileSize operator +(FileSize first, FileSize second)
{
FileSize sum = FileSize.Empty;
if (first.Unit == second.Unit)
{
sum.Size = first.Size + second.Size;
sum.Unit = first.Unit;
sum.RecomputeSize();
}
else if (first.Unit > second.Unit)
{
sum.Size = first.Size;
sum.Unit = first.Unit;
second.UnitUp(first.Unit);
sum.Size += second.Size;
sum.RecomputeSize();
}
else
{
sum.size = second.Size;
sum.Unit = second.Unit;
first.UnitUp(second.Unit);
sum.Size += first.Size;
sum.RecomputeSize();
}
return(sum);
}
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
FileSize b = (FileSize)obj;
return(Size == b.Size && Unit == b.Unit);
}
/// <summary>
/// Creates FileSize for directory
/// </summary>
/// <param name="dirname">Path to directory</param>
/// <returns>New FileSize</returns>
public static FileSize CreateForDirectory(string dirname)
{
DirectoryInfo di = new DirectoryInfo(dirname);
FileSize sum = FileSize.Empty;
foreach (DirectoryInfo dir in di.GetDirectories())
{
sum += CreateForDirectory(dir.FullName);
}
foreach (FileInfo file in di.GetFiles())
{
sum += CreateForFile(file.FullName);
}
return(sum);
}