public CalculatorViewModel()
{
_calculator = new CalculatorSimple();
_operation = Operations.None;
AddCommand = new ActionCommand(Add);
SubtractCommand = new ActionCommand(Subtract);
MultiplyCommand = new ActionCommand(Multiply);
DivideCommand = new ActionCommand(Divide);
EquateCommand = new ActionCommand(Equate);
ZeroCommand = new ActionCommand(() => InputSymbol('0'));
OneCommand = new ActionCommand(() => InputSymbol('1'));
TwoCommand = new ActionCommand(() => InputSymbol('2'));
ThreeCommand = new ActionCommand(() => InputSymbol('3'));
FourCommand = new ActionCommand(() => InputSymbol('4'));
FiveCommand = new ActionCommand(() => InputSymbol('5'));
SixCommand = new ActionCommand(() => InputSymbol('6'));
SevenCommand = new ActionCommand(() => InputSymbol('7'));
EightCommand = new ActionCommand(() => InputSymbol('8'));
NineCommand = new ActionCommand(() => InputSymbol('9'));
MarkCommand = new ActionCommand(() => InputSymbol(','));
RemoveLastDigitCommand = new ActionCommand(RemoveLastDigit);
ClearCommand = new ActionCommand(Clear);
PlusMinusCommand = new ActionCommand(ChangeSign);
}
public MainViewModel()
{
_random = new Random();
_themeNames = Directory.GetFiles(@"Themes", "*.xaml");
CalculatorViewModel = new CalculatorViewModel();
ChangeThemeCommand = new ActionCommand(ChangeTheme);
}