/// <summary>
/// Checks whether an exception was thrown by 'ShuffleHeaven'
/// and sets the error message given by 'errorMesssage' parameter.
///
/// Call this function after a function is called from 'ShuffleHeaven' that
/// retrieves a response from Random.org.
/// </summary>
/// <param name="errorMessage">The string that lets the user know what is wrong.</param>
/// <returns></returns>
private bool HasShuffleHeavenThrownException(string errorMessage)
{
bool hasException = ShuffleHeaven.GetExceptionThrown();
if (hasException)
{
labelErrorMessage.Text =
"An issue with the connectivity was detected. \r\n" + errorMessage;
ShowErrorMessage();
}
return(hasException);
}
private void buttonCheckQuota_Click(object sender, EventArgs e)
{
ChangeCursor();
HideOutputScreen();
ShuffleHeaven.GetUsage();
if (!HasShuffleHeavenThrownException(ERROR_QUOTA))
{
labelBitsLeft.Text = "Bits Left: " + ShuffleHeaven.GetBitsLeft();
labelRequestsLeft.Text = "Requests Left: " + ShuffleHeaven.GetRequestsLeft();
ShowQuota();
}
}
/* Event Handlers */
/*
* Generates a true or pseudo random number
* depending on whether the Random.org API Key has been set.
*/
private void buttonGenerateNumber_Click(object sender, EventArgs e)
{
ChangeCursor();
HideOutputScreen();
buttonGenerateNumber.Enabled = false; // Lock the button
List <int> generatedNumbers;
string formattedNumbers = String.Empty;
/* Generates a true or pseudo random number, depending on whether the Random.org API Key is set or not */
if (settingsForm.IsAPIKeySet())
{
generatedNumbers = ShuffleHeaven.GetTrueRandomNumber((int)inputNumberOfNumbers.Value, (int)inputMinRange.Value, (int)inputMaxRange.Value);
// Shows an error message if 'ShuffleHeaven' throws an exception
HasShuffleHeavenThrownException(ERROR_NUMBER);
}
else
{
/* Generates a pseudo random number */
generatedNumbers = ShuffleHeaven.GeneratePseudoRandomNumber((int)inputNumberOfNumbers.Value, (int)inputMinRange.Value, (int)inputMaxRange.Value);
}
formattedNumbers = ConvertListIntsToString(generatedNumbers);
labelNumberDisplay.Text =
inputNumberOfNumbers.Value > 1 ?
"Your random numbers are: " : "Your random number is: " + formattedNumbers;
labelMultipleNumbers.Text =
inputNumberOfNumbers.Value > 1 ?
formattedNumbers : String.Empty;
ShowNumber();
AddToLog(formattedNumbers);
buttonGenerateNumber.Enabled = true; // Unlock the button
}