Beispiel #1
0
        /// <summary>
        /// Default constructor
        /// </summary>
        public StandardCalculatorViewModel()
        {
            #region Initialization

            currentData         = new CurrentData();
            buttonsState        = new ButtonsState();
            clearData           = new ClearData(currentData, buttonsState);
            numberFormation     = new NumberFormation(currentData, buttonsState, clearData);
            expressionFormation = new ExpressionFormation(currentData, buttonsState, clearData);
            memory = new Memory();

            #endregion

            #region Create commands

            #region Commands for memory operations

            MemorySaveCommand = new RelayCommand(() =>
            {
                memory.MemorySave(CurrentNumber);
                UpdateMainProperties();
            });

            MemoryClearCommand = new RelayCommand(() =>
            {
                memory.MemoryClear();
                UpdateMainProperties();
            });

            MemoryReadCommand = new RelayCommand(() =>
            {
                memory.MemoryRead(CurrentNumber);
                UpdateMainProperties();
            });

            MemoryPlusCommand = new RelayCommand(() =>
            {
                memory.MemoryPlus(CurrentNumber);
                UpdateMainProperties();
            });

            MemoryMinusCommand = new RelayCommand(() =>
            {
                memory.MemoryMinus(CurrentNumber);
                UpdateMainProperties();
            });

            #endregion

            #region Commands for clearing data

            ClearCommand = new RelayCommand(() =>
            {
                clearData.ClearAll();
                UpdateMainProperties();
            });

            ClearEntryCommand = new RelayCommand(() =>
            {
                clearData.ClearEntry();
                UpdateMainProperties();
            });

            BackspaceCommand = new RelayCommand(() =>
            {
                clearData.Backspace();
                UpdateMainProperties();
            });

            #endregion

            #region Commands for basic math operations

            /// <summary>
            /// Adds a "+" operation to the current expression
            /// </summary>
            AdditionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Addition);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "-" operation to the current expression
            /// </summary>
            SubtractionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Subtraction);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "*" operation to the current expression
            /// </summary>
            MultiplyCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Multiply);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "/" operation to the current expression
            /// </summary>
            DivisionCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Division);
                UpdateMainProperties();
            });

            /// <summary>
            /// Adds a "%" operation to the current expression
            /// </summary>
            ModuleDivisionCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.ModuleDivision);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "=" operation to the current expression
            /// </summary>
            EqualCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Equal);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            #endregion

            #region Commands for math operations

            /// <summary>
            /// Adds a "1/x" operation to the current expression
            /// </summary>
            PartOfTheWholeCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.PartOfTheWhole);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "x²" operation to the current expression
            /// </summary>
            SqrCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Sqr);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            /// <summary>
            /// Adds a "√x" operation to the current expression
            /// </summary>
            SqrtCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Sqrt);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            #endregion

            #region Number pad commands

            DigitZeroCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Zero);
                UpdateMainProperties();
            });

            DigitOneCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.One);
                UpdateMainProperties();
            });

            DigitTwoCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Two);
                UpdateMainProperties();
            });

            DigitThreeCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Three);
                UpdateMainProperties();
            });

            DigitFourCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Four);
                UpdateMainProperties();
            });

            DigitFiveCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Five);
                UpdateMainProperties();
            });

            DigitSixCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Six);
                UpdateMainProperties();
            });

            DigitSevenCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Seven);
                UpdateMainProperties();
            });

            DigitEightCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Eight);
                UpdateMainProperties();
            });

            DigitNineCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Nine);
                UpdateMainProperties();
            });

            InvertNumberCommand = new RelayCommand(() =>
            {
                numberFormation.InvertNumber();
                UpdateMainProperties();
            });

            CommaCommand = new RelayCommand(() =>
            {
                numberFormation.AddComma();
                UpdateMainProperties();
            });

            #endregion

            #endregion
        }
        /// <summary>
        /// Default constructor
        /// </summary>
        public StandardCalculatorViewModel()
        {
            #region Initialization

            currentData         = new CurrentData();
            buttonsState        = new ButtonsState();
            clearData           = new ClearData(currentData, buttonsState);
            numberFormation     = new NumberFormation(currentData, buttonsState, clearData);
            expressionFormation = new ExpressionFormation(currentData, buttonsState, clearData);
            memory = new Memory();

            #endregion

            #region Create commands

            #region Commands for clearing data

            ClearCommand = new RelayCommand(() =>
            {
                clearData.ClearAll();
                UpdateMainProperties();
            });

            ClearEntryCommand = new RelayCommand(() =>
            {
                clearData.ClearEntry();
                UpdateMainProperties();
            });

            BackspaceCommand = new RelayCommand(() =>
            {
                clearData.Backspace();
                UpdateMainProperties();
            });

            #endregion

            #region Commands for basic math operations

            AdditionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Addition);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            SubtractionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Subtraction);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            MultiplyCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Multiplication);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            DivisionCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Division);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            ModuleDivisionCommand = new RelayParameterizedCommand((obj) => {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.ModuleDivision);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            EqualCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Equal);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            #endregion

            #region Number pad commands

            DigitZeroCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Zero);
                UpdateMainProperties();
            });

            DigitOneCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.One);
                UpdateMainProperties();
            });

            DigitTwoCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Two);
                UpdateMainProperties();
            });

            DigitThreeCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Three);
                UpdateMainProperties();
            });

            DigitFourCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Four);
                UpdateMainProperties();
            });

            DigitFiveCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Five);
                UpdateMainProperties();
            });

            DigitSixCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Six);
                UpdateMainProperties();
            });

            DigitSevenCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Seven);
                UpdateMainProperties();
            });

            DigitEightCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Eight);
                UpdateMainProperties();
            });

            DigitNineCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Nine);
                UpdateMainProperties();
            });

            InvertNumberCommand = new RelayCommand(() =>
            {
                numberFormation.InvertNumber();
                UpdateMainProperties();
            });

            CommaCommand = new RelayCommand(() =>
            {
                numberFormation.AddComma();
                UpdateMainProperties();
            });

            #endregion

            #endregion
        }
        /// <summary>
        /// Default constructor
        /// </summary>
        public StandardCalculatorViewModel()
        {
            #region Initialization

            currentData         = new CurrentData();
            buttonsState        = new ButtonsState();
            clearData           = new ClearData(currentData, buttonsState);
            numberFormation     = new NumberFormation(currentData, buttonsState, clearData);
            expressionFormation = new ExpressionFormation(currentData, buttonsState, clearData);
            memory = new Memory();

            #endregion

            #region Create commands

            #region Commands for memory operations

            MemoryClearCommand = new RelayParameterizedCommand((obj) =>
            {
                memory.MemoryClear();
            }, (obj) => MemoryBtnLockCondition());

            MemoryReadCommand = new RelayParameterizedCommand((obj) =>
            {
                if (buttonsState.EqualBtnPressed)
                {
                    clearData.ClearAll();
                }
                else if (buttonsState.AdditionalOperationBtnPressed)
                {
                    currentData.CurrentExpression = clearData.ClearLastAdditionalOperation(currentData.CurrentExpression);
                    buttonsState.AdditionalOperationBtnPressed_Change(false);
                }

                currentData.CurrentNumber = memory.CurrentValue.ToString();
                buttonsState.NumberPadBtnPressed_Change(true);
                UpdateMainProperties();
            }, (obj) => MemoryBtnLockCondition());

            MemoryPlusCommand = new RelayParameterizedCommand((obj) =>
            {
                memory.MemoryPlus(CurrentNumber);
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            MemoryMinusCommand = new RelayParameterizedCommand((obj) =>
            {
                memory.MemoryMinus(CurrentNumber);
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            MemorySaveCommand = new RelayParameterizedCommand((obj) =>
            {
                memory.MemorySave(CurrentNumber);
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            MemoryStorageCommand = new RelayParameterizedCommand((obj) =>
            {
                System.Windows.MessageBox.Show(memory.CurrentValue.ToString());
            }, (obj) => MemoryBtnLockCondition());

            #endregion

            #region Commands for clearing data

            ClearCommand = new RelayCommand(() =>
            {
                clearData.ClearAll();
                UpdateMainProperties();
            });

            ClearEntryCommand = new RelayCommand(() =>
            {
                clearData.ClearEntry();
                UpdateMainProperties();
            });

            BackspaceCommand = new RelayCommand(() =>
            {
                clearData.Backspace();
                UpdateMainProperties();
            });

            #endregion

            #region Commands for additional operations

            FindPercentageCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.FindPercentage();
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            PartOfTheWholeCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetAdditionalOperation(AdditionalOperations.PartOfTheWhole);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            SqrCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetAdditionalOperation(AdditionalOperations.Exponentiation);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            SqrtCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetAdditionalOperation(AdditionalOperations.RootExtraction);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            #endregion

            #region Commands for basic math operations

            AdditionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Addition);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            SubtractionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Subtraction);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            MultiplyCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Multiplication);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            DivisionCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Division);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            EqualCommand = new RelayParameterizedCommand((obj) =>
            {
                expressionFormation.SetBasicMathOperation(BasicMathOperations.Equal);
                UpdateMainProperties();
            }, (obj) => NumberStandardization.NumberCheck(currentData.CurrentNumber));

            #endregion

            #region Number pad commands

            DigitZeroCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Zero);
                UpdateMainProperties();
            });

            DigitOneCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.One);
                UpdateMainProperties();
            });

            DigitTwoCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Two);
                UpdateMainProperties();
            });

            DigitThreeCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Three);
                UpdateMainProperties();
            });

            DigitFourCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Four);
                UpdateMainProperties();
            });

            DigitFiveCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Five);
                UpdateMainProperties();
            });

            DigitSixCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Six);
                UpdateMainProperties();
            });

            DigitSevenCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Seven);
                UpdateMainProperties();
            });

            DigitEightCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Eight);
                UpdateMainProperties();
            });

            DigitNineCommand = new RelayCommand(() =>
            {
                numberFormation.AddDigit(Digits.Nine);
                UpdateMainProperties();
            });

            InvertNumberCommand = new RelayCommand(() =>
            {
                numberFormation.InvertNumber();
                UpdateMainProperties();
            });

            CommaCommand = new RelayCommand(() =>
            {
                numberFormation.AddComma();
                UpdateMainProperties();
            });

            #endregion

            #endregion
        }