/// <summary>
/// Обработчик нажатия на клавишу-оператор
/// </summary>
/// <param name="sender">Объект-отправитель</param>
/// <param name="e">Аргументы события</param>
private void OnOperatorButtonClick(object sender, EventArgs e)
{
if (wasLastPressedGetAnswer)
{
wasLastPressedGetAnswer = false;
previousOperator = "=";
}
var button = sender as Button;
string currentOperator = button.Text;
try
{
var updatedValues = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator);
currentAnswer = updatedValues.Item2;
currentValue = 0;
currentInput = "";
previousOperator = currentOperator;
UpdateScreen();
}
catch (DivideByZeroException)
{
answerLabel.Text = "Дел ноль";
currentValue = 0;
currentInput = "";
}
catch (SyntaxErrorException)
{
answerLabel.Text = "ошибка ввода";
currentValue = 0;
currentInput = "";
}
}
/// <summary>
/// Обработчик события нажатия на равно
/// </summary>
/// <param name="sender">Объект-отправитель</param>
/// <param name="e">Аргументы события</param>
private void OnGetAnswerClick(object sender, EventArgs e)
{
wasLastPressedGetAnswer = true;
operatorLabel.Text = "=";
try
{
var updatedValues = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator);
currentValue = updatedValues.Item1;
currentAnswer = updatedValues.Item2;
}
catch (DivideByZeroException)
{
answerLabel.Text = "Дел ноль";
currentValue = 0;
currentInput = "";
return;
}
catch (SyntaxErrorException)
{
answerLabel.Text = "ошибка ввода";
currentValue = 0;
currentInput = "";
return;
}
string toPrint = currentAnswer.ToString();
int index = toPrint.IndexOf(',');
if (index > 0 && ((index + 2) < toPrint.Length))
{
toPrint = toPrint.Substring(0, index + 3);
}
if (toPrint.Length <= 8)
{
answerLabel.Text = toPrint;
}
else
{
answerLabel.Text = "Не влез";
}
}