//Operator State
private void DigitPeriod_Button_MouseClick(object sender, MouseEventArgs e)
{
string input = DigitPeriod_Button.Text;
CalculatorState.getInstance().nextState(1, input);
textBox1.Text = CalculationState.getInstance().display();
}
protected void readOp(String input)
{
if (op == "")
{
op = input;
isOperand1Complete = true;
if (isCalculationComplete)
{
operand2 = "0";
isCalculationComplete = false;
isOperand2Complete = false;
}
}
else
{
if (!isCalculationComplete && isCalculationButtonPressed)
{
CalculatorState.getInstance().nextState(3, null);
}
op = input;
isOperand1Complete = true;
if (isCalculationComplete)
{
operand2 = "0";
isCalculationComplete = false;
isOperand2Complete = false;
}
}
}
//Special Functions
private void SQRTButton_MouseClick(object sender, MouseEventArgs e)
{
string input = SQRTButton.Text;
CalculatorState.getInstance().nextState(4, input);
textBox1.Text = SpecialOperationState.getInstance().display();
}
private void Digit7_Button_Click(object sender, EventArgs e)
{
string input = Digit7_Button.Text;
CalculatorState.getInstance().nextState(1, input);
textBox1.Text = CalculationState.getInstance().clearScreen();
textBox1.Text = CalculationState.getInstance().display();
}
private void ClearButton_MouseClick(object sender, MouseEventArgs e)
{
CalculatorState.getInstance().nextState(6, null);
textBox1.Text = ClearState.getInstance().display();
}
private void ClearAll_MouseClick(object sender, MouseEventArgs e)
{
CalculatorState.getInstance().nextState(5, null);
textBox1.Text = ClearEverythingState.getInstance().display();
}
private void BackspaceButton_MouseClick(object sender, MouseEventArgs e)
{
CalculatorState.getInstance().nextState(0, null);
textBox1.Text = BackspaceState.getInstance().display();
}