Exemple #1
0
        private void HandleOperatorPressed(object sender, OperatorPressedEventArgs e)
        {
            entry        = Entry.Integer;
            decimalCount = 1;

            switch (e.Operator)
            {
            case Operator.Add:
                if (parenClosed)
                {
                    this.view.Display = parenStack[0].Result.ToString("0.####");
                    AddOperation parenAdd = new AddOperation();
                    parenAdd.LeftOperand = parenStack[0];
                    current     = parenAdd;
                    mode        = Mode.Replace;
                    parenClosed = false;
                    break;
                }

                AddOperation add = new AddOperation();
                add.LeftOperand = storedOperation;
                current         = add;
                mode            = Mode.Replace;
                break;

            case Operator.Subtract:
                if (parenClosed)
                {
                    this.view.Display = parenStack[0].Result.ToString("0.####");
                    SubtractOperation parenSubtract = new SubtractOperation();
                    parenSubtract.LeftOperand = parenStack[0];
                    current     = parenSubtract;
                    mode        = Mode.Replace;
                    parenClosed = false;
                    break;
                }

                SubtractOperation subtract = new SubtractOperation();
                subtract.LeftOperand = storedOperation;
                current = subtract;
                mode    = Mode.Replace;
                break;

            case Operator.Multiply:
                if (parenClosed)
                {
                    MultiplyOperation parenMultiply = new MultiplyOperation();
                    parenMultiply.LeftOperand = parenStack[0];
                    current     = parenMultiply;
                    mode        = Mode.Replace;
                    parenClosed = false;
                    break;
                }
                MultiplyOperation multiply = new MultiplyOperation();
                multiply.LeftOperand = storedOperation;
                current = multiply;
                mode    = Mode.Replace;
                break;

            case Operator.Divide:
                if (parenClosed)
                {
                    DivideOperation parenDivide = new DivideOperation();
                    parenDivide.LeftOperand = parenStack[0];
                    current     = parenDivide;
                    mode        = Mode.Replace;
                    parenClosed = false;
                    break;
                }
                DivideOperation divide = new DivideOperation();
                divide.LeftOperand = storedOperation;
                current            = divide;
                mode = Mode.Replace;
                break;
            }
        }
Exemple #2
0
        private void HandleOperatorPressed(object sender, OperatorPressedEventArgs e)
        {
            HasSomethingBeenPressed = true;
            entry        = Entry.Integer;
            decimalCount = 1;

            switch (e.Operator)
            {
            case Operator.Add:     //convert to switches....
                if (parenFlag)     //if inside parentheses, do paren math
                {
                    UpdateCurrentOperands(new AddOperation(), current, null);
                }
                else if (equalFlag)       //do math correctly in weird situations ( ...x = + 3 should give x+3)
                {
                    UpdateCurrentOperands(new AddOperation(), current.Result, null);
                    equalFlag = false;
                }
                else if (current.LeftOperand != null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(current, current.LeftOperand, storedOperation);
                    UpdateCurrentOperands(new AddOperation(), current.Result, null);
                }
                else if (current.LeftOperand == null && current.RightOperand == null)       //first entry (or entry after clear)
                {
                    UpdateCurrentOperands(new AddOperation(), storedOperation, null);
                }
                break;

            case Operator.Subtract:
                if (parenFlag)
                {
                    UpdateCurrentOperands(new SubtractOperation(), current, null);
                }
                else if (equalFlag)
                {
                    UpdateCurrentOperands(new SubtractOperation(), current.Result, null);
                    equalFlag = false;
                }
                else if (current.LeftOperand != null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(current, current.LeftOperand, storedOperation);
                    UpdateCurrentOperands(new SubtractOperation(), current.Result, null);
                }
                else if (current.LeftOperand == null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(new SubtractOperation(), storedOperation, null);
                }
                break;

            case Operator.Multiply:
                if (parenFlag)
                {
                    UpdateCurrentOperands(new MultiplyOperation(), current, null);
                }
                else if (equalFlag)
                {
                    UpdateCurrentOperands(new MultiplyOperation(), current.Result, null);
                    equalFlag = false;
                }
                else if (current.LeftOperand != null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(current, current.LeftOperand, storedOperation);
                    UpdateCurrentOperands(new MultiplyOperation(), current.Result, null);
                }
                else if (current.LeftOperand == null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(new MultiplyOperation(), storedOperation, null);
                }
                break;

            case Operator.Divide:
                if (parenFlag)
                {
                    UpdateCurrentOperands(new DivideOperation(), current, null);
                }
                else if (equalFlag)
                {
                    UpdateCurrentOperands(new DivideOperation(), current.Result, null);
                    equalFlag = false;
                }
                else if (current.LeftOperand != null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(current, current.LeftOperand, storedOperation);
                    UpdateCurrentOperands(new DivideOperation(), current.Result, null);
                }
                else if (current.LeftOperand == null && current.RightOperand == null)
                {
                    UpdateCurrentOperands(new DivideOperation(), storedOperation, null);
                }
                break;
            }
        }