// PUBLIC
/// <summary>
/// Dos the enter instruction.
/// </summary>
/// <returns>The enter instruction.</returns>
/// <param name="instruction">Instruction.</param>
public float doEnterInstruction (Instruction aInstruction)
{
//
float lastDisplayValue_float = iScientificCalculatorModel.displayValue;
float nextDisplayValue_float;
if (aInstruction.instructionType == InstructionType.Operand) {
//PUT NEW # TO THE RIGHT OF THE EXISTING DISPLAY #
if (iScientificCalculatorModel.calculatorState == CalculatorState.AppendingOperands) {
nextDisplayValue_float = float.Parse (lastDisplayValue_float.ToString() + Constants.GetOperandValueByKeyCode (aInstruction.keyCode).ToString());
} else {
nextDisplayValue_float = float.Parse (Constants.GetOperandValueByKeyCode (aInstruction.keyCode).ToString());
iScientificCalculatorModel.calculatorState = CalculatorState.AppendingOperands;
}
} else {
nextDisplayValue_float = (float)aInstruction.execute (lastDisplayValue_float);
iScientificCalculatorModel.calculatorState = CalculatorState.NotAppendingOperands;
}
return nextDisplayValue_float;
}
// PUBLIC
/// <summary>
/// Dos the enter instruction.
/// </summary>
/// <returns>The enter instruction.</returns>
/// <param name="instruction">Instruction.</param>
public float doEnterInstruction (Instruction instruction)
{
return 0;
}
