private void ProcessMemoryKey(Calculator.CalculatorButtonType buttonType)
{
decimal currentValue = CalculatorUtilities.ParseDecimal(DisplayText);
_showNewNumber = true;
switch (buttonType)
{
case Calculator.CalculatorButtonType.MAdd:
Memory += currentValue;
break;
case Calculator.CalculatorButtonType.MC:
Memory = decimal.Zero;
break;
case Calculator.CalculatorButtonType.MR:
DisplayText = Memory.ToString();
_showNewNumber = false;
break;
case Calculator.CalculatorButtonType.MS:
Memory = currentValue;
break;
case Calculator.CalculatorButtonType.MSub:
Memory -= currentValue;
break;
default:
break;
}
}
public static bool IsMemory(Calculator.CalculatorButtonType buttonType)
{
switch (buttonType)
{
case Calculator.CalculatorButtonType.MAdd:
case Calculator.CalculatorButtonType.MC:
case Calculator.CalculatorButtonType.MR:
case Calculator.CalculatorButtonType.MS:
case Calculator.CalculatorButtonType.MSub:
return(true);
default:
return(false);
}
}
public static bool IsDigit(Calculator.CalculatorButtonType buttonType)
{
switch (buttonType)
{
case Calculator.CalculatorButtonType.Zero:
case Calculator.CalculatorButtonType.One:
case Calculator.CalculatorButtonType.Two:
case Calculator.CalculatorButtonType.Three:
case Calculator.CalculatorButtonType.Four:
case Calculator.CalculatorButtonType.Five:
case Calculator.CalculatorButtonType.Six:
case Calculator.CalculatorButtonType.Seven:
case Calculator.CalculatorButtonType.Eight:
case Calculator.CalculatorButtonType.Nine:
case Calculator.CalculatorButtonType.Decimal:
return(true);
default:
return(false);
}
}
public static Button FindButtonByCalculatorButtonType(DependencyObject parent,
Calculator.CalculatorButtonType type)
{
for (var i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
{
var child = VisualTreeHelper.GetChild(parent, i);
var buttonType = child.GetValue(ButtonBase.CommandParameterProperty);
if (buttonType is not null && (Calculator.CalculatorButtonType)buttonType == type)
{
return(child as Button);
}
var result = FindButtonByCalculatorButtonType(child, type);
if (result is not null)
{
return(result);
}
}
return(null);
}
public static string GetCalculatorButtonContent(Calculator.CalculatorButtonType type)
{
var content = string.Empty;
switch (type)
{
case Calculator.CalculatorButtonType.Add:
content = "+";
break;
case Calculator.CalculatorButtonType.Back:
content = "Back";
break;
case Calculator.CalculatorButtonType.Cancel:
content = "CE";
break;
case Calculator.CalculatorButtonType.Clear:
content = "C";
break;
case Calculator.CalculatorButtonType.Decimal:
content = CultureInfo.CurrentCulture.NumberFormat.CurrencyDecimalSeparator;
break;
case Calculator.CalculatorButtonType.Divide:
content = "/";
break;
case Calculator.CalculatorButtonType.Eight:
content = "8";
break;
case Calculator.CalculatorButtonType.Equal:
content = "=";
break;
case Calculator.CalculatorButtonType.Five:
content = "5";
break;
case Calculator.CalculatorButtonType.Four:
content = "4";
break;
case Calculator.CalculatorButtonType.Fraction:
content = "1/x";
break;
case Calculator.CalculatorButtonType.MAdd:
content = "M+";
break;
case Calculator.CalculatorButtonType.MC:
content = "MC";
break;
case Calculator.CalculatorButtonType.MR:
content = "MR";
break;
case Calculator.CalculatorButtonType.MS:
content = "MS";
break;
case Calculator.CalculatorButtonType.MSub:
content = "M-";
break;
case Calculator.CalculatorButtonType.Multiply:
content = "*";
break;
case Calculator.CalculatorButtonType.Nine:
content = "9";
break;
case Calculator.CalculatorButtonType.None:
break;
case Calculator.CalculatorButtonType.One:
content = "1";
break;
case Calculator.CalculatorButtonType.Percent:
content = "%";
break;
case Calculator.CalculatorButtonType.Seven:
content = "7";
break;
case Calculator.CalculatorButtonType.Negate:
content = "+/-";
break;
case Calculator.CalculatorButtonType.Six:
content = "6";
break;
case Calculator.CalculatorButtonType.Sqrt:
content = "Sqrt";
break;
case Calculator.CalculatorButtonType.Subtract:
content = "-";
break;
case Calculator.CalculatorButtonType.Three:
content = "3";
break;
case Calculator.CalculatorButtonType.Two:
content = "2";
break;
case Calculator.CalculatorButtonType.Zero:
content = "0";
break;
}
return(content);
}
public static Button FindButtonByCalculatorButtonType(DependencyObject parent, Calculator.CalculatorButtonType type)
{
if (parent == null)
{
return(null);
}
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
{
var child = VisualTreeHelper.GetChild(parent, i);
if (child == null)
{
continue;
}
object buttonType = child.GetValue(Button.CommandParameterProperty);
if (buttonType != null && (Calculator.CalculatorButtonType)buttonType == type)
{
return(child as Button);
}
else
{
var result = FindButtonByCalculatorButtonType(child, type);
if (result != null)
{
return(result);
}
}
}
return(null);
}
