/// <summary>
/// Writes the progress bar, followed by the current line terminator, to the standard output stream.
/// </summary>
/// <param name="current">Current item number (not the percentage).</param>
/// <param name="total">Total number of items.</param>
/// <param name="elapsed">Total time elapsed since the start of the process.</param>
/// <param name="character">Character to show in the progress bar.</param>
/// <param name="location">Specifies the position of the percentage.</param>
public static void WriteLine(int current, int total, TimeSpan?elapsed = null, char character = '#', PercentLocation location = PercentLocation.Middle, int accuracy = 0)
{
Console.WriteLine(GetProgress(current, total, Console.WindowWidth, elapsed, character, location, accuracy));
}
internal static string GetProgress(
int current,
int total,
int barLength,
TimeSpan?elapsed = null,
char character = '#',
PercentLocation location = PercentLocation.Middle,
int accuracy = 0)
{
if (accuracy > 3)
{
accuracy = 3;
}
barLength -= elapsed.HasValue ? ProgressHelper.GetElapsedString(elapsed.Value).Length : 0; // elapsed time
barLength -= 2; // brackets []
if (location == PercentLocation.Left || location == PercentLocation.Right)
{
// This will shorten the bar to fit the progress outside.
barLength -= 5;
if (accuracy > 0)
{
barLength -= accuracy + 1; // decimal points + delimiter
}
}
ProgressHelper.ValidateInputs(current, total);
decimal percent = (current + 1) * 100 / total;
string percentString;
switch (location)
{
case PercentLocation.Left:
case PercentLocation.Right:
if (accuracy == 0)
{
percentString = $"{percent,3:0}";
}
else if (accuracy == 1)
{
percentString = $"{percent,5:0.0}";
}
else if (accuracy == 2)
{
percentString = $"{percent,6:0.00}";
}
else
{
percentString = $"{percent,7:0.000}";
}
break;
case PercentLocation.Middle:
if (accuracy == 0)
{
percentString = $"{percent:0}";
}
else if (accuracy == 1)
{
percentString = $"{percent:0.0}";
}
else if (accuracy == 2)
{
percentString = $"{percent:0.00}";
}
else
{
percentString = $"{percent:0.000}";
}
break;
default:
percentString = "";
break;
}
var progressBar = location == PercentLocation.Left ? $"{percentString}% [" : "[";
for (byte i = 0; i < barLength; i++)
{
var position = barLength * percent / 100 - 1;
if (percent > 0 && i <= position)
{
progressBar += character;
}
else
{
progressBar += " ";
}
}
progressBar += location == PercentLocation.Right ? $"] {percentString}%" : "]";
if (elapsed.HasValue)
{
progressBar += ProgressHelper.GetElapsedString(elapsed.Value);
}
if (location == PercentLocation.Middle)
{
var digits = percent < 10 ? 1 : percent < 100 ? 2 : 3;
var substringLength = progressBar.Length / 2;
var accuracyLength = accuracy == 0 ? 0 : accuracy + 1; // include delimiter character
return(progressBar.Substring(0, substringLength - digits) + percentString + "%" + progressBar.Substring(substringLength + 1 + accuracyLength));
}
return(progressBar);
}
/// <summary>
/// Writes the progress bar to the standard output stream.
/// </summary>
/// <param name="current">Current item number (not the percentage).</param>
/// <param name="total">Total number of items.</param>
/// <param name="elapsed">Total time elapsed since the start of the process.</param>
/// <param name="character">Character to show in the progress bar.</param>
/// <param name="autoHide">If true, the progress bar is removed upon completion.</param>
/// <param name="location">Specifies the position of the percentage.</param>
public static void Write(int current, int total, TimeSpan?elapsed = null, char character = '#', bool autoHide = false, PercentLocation location = PercentLocation.Middle, int accuracy = 0)
{
if (current + 1 < total)
{
Console.CursorVisible = false;
}
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write(GetProgress(current, total, Console.WindowWidth, elapsed, character, location, accuracy));
if (current + 1 >= total)
{
if (autoHide)
{
// Clear console line
Console.SetCursorPosition(0, Console.CursorTop);
for (int i = 0; i < Console.WindowWidth; i++)
{
Console.Write(" ");
}
Console.SetCursorPosition(0, Console.CursorTop);
}
else
{
Console.WriteLine();
}
Console.CursorVisible = true;
}
}
