/// <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
}
