Timerix/SharpCalculator
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operation history

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This commit is contained in:
timerix 2023-11-24 14:07:23 +06:00
parent cbb7965a93
commit 4724b616ce
1 changed files with 9 additions and 9 deletions
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18
SharpCalculator.Avalonia/MainWindow.axaml.cs
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@ -22,7 +22,7 @@ public partial class MainWindow : Window
readonly Func<double, double, double> _initialOperation = (_, firstN) => firstN;
private Func<double, double, double> _currentOperation;
private void NewOperation(Func<double, double, double> operation, string operationText)
private void NewOperation(Func<double, double, double> operation, Func<string> operationText)
{
// operation replacement
if (_currentNumberB.Length == 0)
@ -33,7 +33,7 @@ public partial class MainWindow : Window
Output.Text = _prevNumber.ToString(CultureInfo.InvariantCulture);
_currentNumberB.Clear();
}
Input.Text = _prevNumber.ToString(CultureInfo.InvariantCulture) + " " + operationText + " ";
Input.Text += operationText();
_currentOperation = operation;
}
@ -56,25 +56,25 @@ public partial class MainWindow : Window
switch (text)
{
case "+":
NewOperation((a, b) => a + b, text);
NewOperation((a, b) => a + b, () => text);
break;
case "-":
NewOperation((a, b) => a - b, text);
NewOperation((a, b) => a - b, () => text);
break;
case "*":
NewOperation((a, b) => a * b, text);
NewOperation((a, b) => a * b, () => text);
break;
case "/":
NewOperation((a, b) => a / b, text);
NewOperation((a, b) => a / b, () => text);
break;
case "^":
NewOperation(Math.Pow, text);
NewOperation(Math.Pow, () => text);
break;
case "=":
NewOperation((_, newNumber) => newNumber, "");
NewOperation((_, newNumber) => newNumber, () => $"={_prevNumber}\n");
break;
default:
throw new Exception("incorrect button text: " + text);
throw new Exception("incorrect button text: ");
}
}