void Operation(string msg, bool isInput)
{
if (isInput)
{
calcState = CalcState.Operation;
if (operation.Length != 0 && afterResult == false)
{
isExpression = true;
if ((msg == "x" || msg == "÷") && (operations.Peek() == "+" || operations.Peek() == "-"))
{
operation = msg;
operations.Push(operation);
firstNumber = secondNumber;
reccuring.Add(secondNumber);
secondNumber = "";
precendence = int.Parse(firstNumber);
}
else if ((msg == "x" || msg == "÷") && (operations.Peek() == "x" || operations.Peek() == "÷"))
{
if (operation == "x")
{
precendence *= int.Parse(secondNumber);
}
else if (operation == "÷")
{
precendence /= int.Parse(secondNumber);
}
changeTextDelegate.Invoke(precendence.ToString());
operation = msg;
operations.Push(operation);
reccuring.Add(secondNumber);
secondNumber = "";
}
else if ((msg == "+" || msg == "-") && (operations.Peek() == "x" || operations.Peek() == "÷"))
{
if (operation == "x")
{
precendence *= int.Parse(secondNumber);
}
else if (operation == "÷")
{
precendence /= int.Parse(secondNumber);
}
if (signs.Count > 0 && signs.Peek() == "-")
{
precendence *= (-1);
}
sumNumbers.Push(precendence);
Stack <int> stack = new Stack <int>();
int temp = 0;
while (sumNumbers.Count > 0)
{
temp += sumNumbers.Peek();
stack.Push(sumNumbers.Peek());
sumNumbers.Pop();
}
while (stack.Count > 0)
{
sumNumbers.Push(stack.Peek());
stack.Pop();
}
changeTextDelegate.Invoke(temp.ToString());
precendence = 0;
operation = msg;
operations.Push(operation);
signs.Push(operation);
reccuring.Add(secondNumber);
secondNumber = "";
}
else if ((msg == "+" || msg == "-") && (operations.Peek() == "-" || operations.Peek() == "-"))
{
if (operation == "-")
{
sumNumbers.Push(int.Parse(secondNumber) * (-1));
}
else if (operation == "+")
{
sumNumbers.Push(int.Parse(secondNumber));
}
operation = msg;
operations.Push(operation);
signs.Push(operation);
reccuring.Add(secondNumber);
secondNumber = "";
}
}
else if (operation.Length != 0 && afterResult == true)
{
operation = msg;
firstNumber = resultNumber;
reccuring.Add(secondNumber);
secondNumber = "";
afterResult = false;
}
else
{
operation = msg;
operations.Push(operation);
if (operation == "+" || operation == "-")
{
sumNumbers.Push(int.Parse(secondNumber));
signs.Push(operation);
}
else if (operation == "x" || operation == "÷")
{
precendence = int.Parse(secondNumber);
}
reccuring.Add(secondNumber);
if (firstNumber == "")
{
firstNumber = secondNumber;
}
//reccuring.Add(firstNumber);
secondNumber = "";
}
string text = string.Join(" ", reccuring.ToArray());
changeRecurringTextDelegate.Invoke(text);
}
else
{
if (Rules.IsDigit(msg))
{
AccumulateDigits(msg, true);
}
else if (Rules.IsResult(msg))
{
secondNumber = firstNumber;
Result(msg, true);
}
else if (Rules.IsFullReset(msg))
{
FullReset();
}
else if (Rules.IsReset(msg))
{
Reset();
}
else if (Rules.IsMemoryOperation(msg))
{
MemorySave(msg, true);
}
else if (msg == "(")
{
reccuring.Add("(");
string text = string.Join(" ", reccuring.ToArray());
changeRecurringTextDelegate.Invoke(text);
Expression(msg, true);
}
}
}
void Result(string msg, bool isInput)
{
if (isInput)
{
calcState = CalcState.Result;
if (operation == "Mod")
{
resultNumber = (int.Parse(firstNumber) % int.Parse(secondNumber)).ToString();
}
else if (operation == "pow")
{
resultNumber = Math.Pow(double.Parse(firstNumber), double.Parse(secondNumber)).ToString();
}
else if (operation == "root")
{
resultNumber = Math.Pow(double.Parse(firstNumber), 1.0 / double.Parse(secondNumber)).ToString();
}
else if (isExpression == true || isAdvancedExpression == true)
{
if (operations.Peek() == "+")
{
sumNumbers.Push(int.Parse(secondNumber));
}
else if (operations.Peek() == "-")
{
sumNumbers.Push(int.Parse(secondNumber) * (-1));
}
else if (operations.Peek() == "x")
{
if (signs.Peek() == "-")
{
precendence *= (-1);
}
precendence *= int.Parse(secondNumber);
sumNumbers.Push(precendence);
}
else if (operations.Peek() == "÷")
{
if (signs.Peek() == "-")
{
precendence *= (-1);
}
precendence /= int.Parse(secondNumber);
sumNumbers.Push(precendence);
}
int temp = 0;
while (sumNumbers.Count > 0)
{
temp += sumNumbers.Peek();
sumNumbers.Pop();
}
resultNumber = temp.ToString();
}
/*else if (isAdvancedExpression == true)
* {
*
* }*/
else
{
resultNumber = PerformCalculation();
}
changeTextDelegate.Invoke(resultNumber);
firstNumber = resultNumber;
isExpression = false;
isAdvancedExpression = false;
reccuring = new List <string>();
changeRecurringTextDelegate.Invoke("");
}
else
{
if (Rules.IsOperation(msg))
{
afterResult = true;
Operation(msg, true);
}
else if (Rules.IsDigit(msg))
{
AccumulateDigits(msg, true);
}
else if (Rules.IsResult(msg))
{
Result(msg, true);
}
else if (Rules.IsMemoryOperation(msg))
{
memoryNumberToFirst = true;
resultToMemory = true;
MemorySave(msg, true);
}
else if (Rules.IsFullReset(msg))
{
FullReset();
}
else if (Rules.IsReset(msg))
{
Reset();
}
}
}
void AccumulateDigits(string msg, bool isInput)
{
if (isInput)
{
calcState = CalcState.AccumulateDigits;
if (msg == "," && secondNumber.Contains(',') == false)
{
secondNumber = "0,";
changeTextDelegate.Invoke(secondNumber);
}
else
{
secondNumber += msg;
changeTextDelegate.Invoke(secondNumber);
}
}
else
{
if (Rules.IsDigit(msg))
{
secondNumber += msg;
changeTextDelegate.Invoke(secondNumber);
}
else if (Rules.IsSeparator(msg))
{
if (secondNumber.Contains(',') == false)
{
secondNumber += ",";
changeTextDelegate.Invoke(secondNumber);
}
}
else if (Rules.IsChangingSign(msg))
{
if (secondNumber[0] == '-')
{
secondNumber = secondNumber.Remove(0, 1);
}
else
{
secondNumber = "-" + secondNumber;
}
changeTextDelegate.Invoke(secondNumber);
}
else if (Rules.IsOperation(msg))
{
Operation(msg, true);
reccuring.Add(msg);
string text = string.Join(" ", reccuring.ToArray());
changeRecurringTextDelegate.Invoke(text);
}
else if (Rules.IsPercent(msg))
{
if (operation == "+" || operation == "-")
{
CalculatePercent();
}
else if (operation == "x" || operation == "÷")
{
CalculateSecondPercent();
}
changeTextDelegate.Invoke(secondNumber);
}
else if (Rules.IsResult(msg))
{
Result(msg, true);
}
else if (Rules.IsFullReset(msg))
{
FullReset();
}
else if (Rules.IsReset(msg))
{
Reset();
}
else if (Rules.IsBackspace(msg))
{
secondNumber = secondNumber.Remove(secondNumber.Length - 1);
changeTextDelegate.Invoke(secondNumber);
if (secondNumber.Length <= 0)
{
changeTextDelegate.Invoke("0");
}
}
else if (Rules.IsMemoryOperation(msg))
{
MemorySave(msg, true);
}
else if (Rules.IsSinCos(msg))
{
SinCos(msg, true);
}
else if (msg == "Mod")
{
Modulo(msg, true);
}
else if (msg == "log")
{
Logarithm(msg, true);
}
else if (msg == "x^y")
{
ParticularPower(msg, true);
}
else if (msg == "10^x")
{
PowerOfTen(msg, true);
}
else if (msg == "n!")
{
Factorial(msg, true);
}
else if (msg == "yrootx")
{
AnyRoot(msg, true);
}
else if (msg == ")")
{
reccuring.Add(secondNumber);
reccuring.Add(")");
string text = string.Join(" ", reccuring.ToArray());
changeRecurringTextDelegate.Invoke(text);
Expression(msg, true);
}
}
}
