//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();
}
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();
}
//Calculation State
private void ComputeButton_MouseClick(object sender, MouseEventArgs e)
{
CalculatorState.getInstance().nextState(3, null);
textBox1.Text = CalculationState.getInstance().display();
}