/// <summary>
/// Switches calculator to complex calculation mode.
/// </summary>
private void Complex_Calculations_Button_Checked(object sender, RoutedEventArgs e)
{
Options.Set_Calculation_Method(Calculation_Method.Complex);
string newWorkSpaceText = "";
if (no_First_Number_In_Equation_Single == false)
{
newWorkSpaceText += Back_Parser.Parse_Back(First_Number_In_Equation_Single);
}
if (no_operand_Sign_Single == false)
{
newWorkSpaceText += Operand_Sign_Single.ToString();
}
newWorkSpaceText += WorkSpace.Text;
Reset_WorkSpace_Text(newWorkSpaceText);
no_operand_Sign_Single = true;
no_First_Number_In_Equation_Single = true;
Set_Specialized_Buttons();
}
/// <summary>
/// Controls proper perfoming of operation button according to whether some operation were perfomed ealier.
/// </summary>
private void Basic_Calculation_Single(IOperand symbol)
{
// To rebuild after rebuilding exceptions thrown by Parser.
string new_ResultSpace_Text;
if (no_operand_Sign_Single == true)
{
if (no_First_Number_In_Equation_Single == true)
{
First_Number_In_Equation_Single = Parse_WorkSpace();
new_ResultSpace_Text =
Back_Parser.Parse_Back(first_Number_In_Equation_Single) + symbol.ToString();
}
else
{
new_ResultSpace_Text =
Back_Parser.Parse_Back(first_Number_In_Equation_Single) + symbol.ToString();
}
}
else if ((String.IsNullOrEmpty(WorkSpace.Text) ||
String.IsNullOrWhiteSpace(WorkSpace.Text)) == true)
{
try
{
first_Number_In_Equation_Single =
_Calculator.Operand_Selector(Operand_Sign_Single, first_Number_In_Equation_Single, Parse_WorkSpace());
new_ResultSpace_Text =
Back_Parser.Parse_Back(first_Number_In_Equation_Single);
}
catch (DivideByZeroException)
{
new_ResultSpace_Text = "Dividing by zero is not allowed";
no_operand_Sign_Single = true;
no_First_Number_In_Equation_Single = true;
}
catch
{
new_ResultSpace_Text = ResultSpace.Text;
symbol = Operand_Sign_Single;
}
}
else
{
new_ResultSpace_Text = ResultSpace.Text;
}
Reset_ResultSpace_Text(new_ResultSpace_Text);
Operand_Sign_Single = symbol;
Clear_WorkSpace();
}
internal void Button_Invert_Number_Action()
{
Number WorkSpace_Number = Parse_WorkSpace();
if (WorkSpace_Number.Value != 0)
{
WorkSpace_Number = _Calculator.Operand_Selector(new Division(), new Number(1), WorkSpace_Number);
}
Reset_WorkSpace_Text(Back_Parser.Parse_Back(WorkSpace_Number));
}
/// <summary>
/// Controlls action after pressing equals button when option for single calculations is on.
/// </summary>
private void Equals_Single( )
{
string new_ResultSpace_Text;
try
{
Number calculation_Result;
if (no_First_Number_In_Equation_Single == true)
{
return;
}
calculation_Result = _Calculator.Operand_Selector(Operand_Sign_Single, first_Number_In_Equation_Single, Parse_WorkSpace());
new_ResultSpace_Text = Back_Parser.Parse_Back(calculation_Result);
First_Number_In_Equation_Single = calculation_Result;
}
catch (DivideByZeroException)
{
new_ResultSpace_Text = "Dividing by zero is not allowed";
}
catch (Exception)
{
new_ResultSpace_Text = "Unknown error occur";
}
finally
{
no_operand_Sign_Single = true;
//no_First_Number_In_Equation_Single = true;
Clear_WorkSpace();
}
Reset_ResultSpace_Text(new_ResultSpace_Text);
}
/// <summary>
/// Controlls action after pressing equals button when option for complex calculations is on.
/// </summary>
private void Equals_Complex(string equation)
{
Equation = new Equation(equation, Current_Numeral_System, Options.Commas_Type_Array);
Reset_ResultSpace_Text(Back_Parser.Parse_Back(Equation.Solved_Number));
}
