public void AddOperation(CalculatorOperation op)
{
countAfterPoint = 1;
isPoint = false;
if (LeftValue == null)
{
LeftValue = 0;
}
if (Operation != null)
{
if (RightValue != 0)
{
Compute();
}
}
else
{
LeftValue = RightValue;
OnDidChangeLeft?.Invoke(this, new CalculatorEventArgs("Left change", LeftValue, RightValue, Operation));
}
Operation = op;
RightValue = null;
OnDidChangeOperation?.Invoke(this, new CalculatorEventArgs("Change operation", LeftValue, RightValue, Operation));
}
public void Compute()
{
try
{
switch (Operation)
{
case CalculatorOperation.Add:
LeftValue += RightValue;
break;
case CalculatorOperation.Mul:
if (LeftValue != 0)
{
LeftValue *= RightValue;
}
else
{
LeftValue = RightValue;
}
break;
case CalculatorOperation.Sub:
if (LeftValue != 0)
{
LeftValue -= RightValue;
}
else
{
LeftValue = RightValue;
}
break;
case CalculatorOperation.Div:
if (LeftValue != 0)
{
LeftValue /= RightValue;
}
else
{
LeftValue = RightValue;
}
break;
default:
LeftValue = RightValue;
break;
}
OnDidChangeLeft?.Invoke(this, new CalculatorEventArgs("Left change", LeftValue, RightValue, Operation));
//OnDidChangeRight?.Invoke(this, new CalculatorEventArgs("Right change", LeftValue, RightValue, Operation));
Result = LeftValue;
OnDidCompute?.Invoke(this, new ComputeEventArgs
(LeftValue, RightValue, Operation, Result));
}
catch
{
OnUnableToCompute?.Invoke(this, new CalculatorEventArgs("Error", LeftValue, RightValue, Operation));
throw new ArgumentException();
}
}
public void AddOperation(CalculatorOperation op)
{
if (Operation != null)
{
Compute();
}
else
{
LeftValue = RightValue;
OnDidChangeLeft?.Invoke(this, new CalculatorEventArgs("Left change", LeftValue, RightValue, Operation));
}
Operation = op;
OnDidChangeOperation?.Invoke(this, new CalculatorEventArgs("Change operation", LeftValue, RightValue, Operation));
RightValue = null;
}