private static decimal GetMultipler(MemoryUnits units)
{
decimal unitsMulitpler;
if (UnitsMulitpler.TryGetValue(units, out unitsMulitpler))
{
return(unitsMulitpler);
}
unitsMulitpler = 1 / Convert.ToDecimal((int)units);
UnitsMulitpler.Add(units, unitsMulitpler);
return(unitsMulitpler);
}
private static string GetUnitString(MemoryUnits units)
{
string unitsString;
if (UnitsAsString.TryGetValue(units, out unitsString))
{
return(unitsString);
}
var memInfo = MemoryUnitsType.GetMember(units.ToString());
var attributes = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
unitsString = ((DescriptionAttribute)attributes[0]).Description;
UnitsAsString.Add(units, unitsString);
return(unitsString);
}
private static string GetUnitString(MemoryUnits units)
{
string unitsString;
if (UnitsAsString.TryGetValue(units, out unitsString))
{
return(unitsString);
}
string unitAsString;
switch (units)
{
case MemoryUnits.Bytes:
unitAsString = "Bytes";
break;
case MemoryUnits.Kilo:
unitAsString = "Kilo";
break;
case MemoryUnits.Mega:
unitAsString = "Mega";
break;
case MemoryUnits.Giga:
unitAsString = "Giga";
break;
default:
throw new ArgumentOutOfRangeException("units", @"Unknown units of memory!");
}
var memInfo = MemoryUnitsType.GetMember(unitAsString);
var attributes = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
unitsString = ((DescriptionAttribute)attributes[0]).Description;
UnitsAsString.Add(units, unitsString);
return(unitsString);
}
/// <summary>
/// Приведение к человекочитабельному размеру файла
/// </summary>
/// <param name="sizeInBytes">Размер файла</param>
/// <param name="sizeValue">Значение</param>
/// <param name="sizeUnit">Единица измерения</param>
public static void SizeInBytesToUserFriendlyFileSize(this long sizeInBytes, out double sizeValue, out MemoryUnits sizeUnit)
{
if (sizeInBytes == 0L)
{
sizeValue = 0.0;
sizeUnit = MemoryUnits.Bytes;
}
else
{
sizeInBytes = Math.Abs(sizeInBytes);
int num = Convert.ToInt32(Math.Floor(Math.Log(sizeInBytes, 1024.0)));
sizeValue = Math.Round(sizeInBytes / Math.Pow(1024.0, num), 1);
sizeValue = Math.Sign(sizeInBytes) * sizeValue;
sizeUnit = (MemoryUnits)num;
}
}
private static string ValueAsString(Func <decimal> valueFunc, MemoryUnits units, int decimalPlaces)
{
return($"{decimal.Round(valueFunc()*GetMultipler(units), decimalPlaces):0.00} {GetUnitString(units)}");
}
private static string ValueAsString(Func <decimal> valueFunc, MemoryUnits units, int decimalPlaces)
{
return(string.Format("{0:0.00} {1}", decimal.Round(valueFunc() * GetMultipler(units), decimalPlaces), GetUnitString(units)));
}
/// <summary>
/// Конструктор
/// </summary>
/// <param name="sizeValue">Размер</param>
/// <param name="sizeUnit">Единица измерения</param>
public UserFriendlyFileSize(double sizeValue, MemoryUnits sizeUnit)
{
this = new UserFriendlyFileSize();
SizeValue = sizeValue;
SizeUnit = sizeUnit;
}
