void CalcPi(int digits)
{
StringBuilder pi = new StringBuilder("3", digits + 2);
object sender = System.Threading.Thread.CurrentThread;
ShowProgressArgs e = new ShowProgressArgs(pi.ToString(), digits, 0);
// Show progress
ShowProgress(sender, e);
if (digits > 0)
{
pi.Append(".");
for (int i = 0; i < digits; i += 9)
{
int nineDigits = NineDigitsOfPi.StartingAt(i + 1);
int digitCount = Math.Min(digits - i, 9);
string ds = string.Format("{0:D9}", nineDigits);
pi.Append(ds.Substring(0, digitCount));
// Show progress
e.Pi = pi.ToString();
e.DigitsSoFar = i + digitCount;
ShowProgress(sender, e);
if (e.Cancel)
{
break;
}
}
}
}
void ShowProgress(object sender, ShowProgressArgs e)
{
// Make sure we're on the UI thread
if (_pi.InvokeRequired == false)
{
_pi.Text = e.Pi;
_piProgress.Maximum = e.TotalDigits;
_piProgress.Value = e.DigitsSoFar;
// Check for Cancel
e.Cancel = (_state == CalcState.Canceled);
// Check for completion
if (e.Cancel || (e.DigitsSoFar == e.TotalDigits))
{
_state = CalcState.Pending;
_calcButton.Text = "Calc";
_calcButton.Enabled = true;
}
}
else
{
// Get ready to show progress asynchronously
ShowProgressHandler showProgress = new ShowProgressHandler(ShowProgress);
// Show progress
Invoke(showProgress, new object[] { sender, e });
}
}
static void lz78_showProgres(object sender, ShowProgressArgs e)
{
Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop - 2);
Console.WriteLine();
int x = (int)(((double)e.current_size / (double)e.full_size) * 100);
Console.WriteLine(x + "% complete");
}
protected virtual void OnShowProgress(ShowProgressArgs e)
{
showProgress?.Invoke(this, e);
}