92 lines
4.0 KiB
C#
92 lines
4.0 KiB
C#
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using System;
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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Markup.Xaml;
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namespace BuggyCalculator
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{
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public partial class MainWindow : Window
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{
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private TextBox _input1;
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private TextBox _input2;
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private ComboBox _operation;
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private TextBlock _result;
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private Button _calculateButton;
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public MainWindow()
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{
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InitializeComponent();
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_input1 = this.FindControl<TextBox>("Input1") ?? throw new InvalidOperationException("Input1 not found");
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_input2 = this.FindControl<TextBox>("Input2") ?? throw new InvalidOperationException("Input2 not found");
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_operation = this.FindControl<ComboBox>("Operation") ?? throw new InvalidOperationException("Operation not found");
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_result = this.FindControl<TextBlock>("Result") ?? throw new InvalidOperationException("Result not found");
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_calculateButton = this.FindControl<Button>("CalculateButton") ?? throw new InvalidOperationException("CalculateButton not found");
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_calculateButton.Click += Calculate;
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}
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private void InitializeComponent()
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{
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AvaloniaXamlLoader.Load(this);
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}
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private void Calculate(object? sender, EventArgs e)
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{
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try
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{
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if (string.IsNullOrWhiteSpace(_input1.Text))
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{
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_result.Text = "Ошибка: Первое поле пустое.";
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return;
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}
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if (!double.TryParse(_input1.Text, out double num1))
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{
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throw new FormatException("Ошибка: Некорректный ввод");
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}
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double num2 = string.IsNullOrWhiteSpace(_input2.Text) ? 0 : double.Parse(_input2.Text);
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if (_operation.SelectedItem is ComboBoxItem selectedItem)
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{
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string operation = selectedItem.Content.ToString();
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double result = operation switch
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{
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"Сложение" => num1 + num2,
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"Вычитание" => num1 - num2,
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"Умножение" => num1 * num2,
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"Деление" => num2 != 0 ? num1 / num2 : throw new DivideByZeroException(),
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"Возведение в степень" => num2 < 0 ? throw new InvalidOperationException("Возведение в отрицательную степень запрещено") : Math.Pow(num1, num2),
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"Квадратный корень" => num1 >= 0 ? Math.Sqrt(num1) : throw new InvalidOperationException("Квадратный корень из отрицательного числа невозможен"),
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"Логарифм" => num1 > 0 && num2 > 0 && num2 != 1 ? Math.Log(num1, num2) : throw new InvalidOperationException("Основание логарифма должно быть > 0 и != 1"),
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"Синус" => Math.Sin(num1),
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"Косинус" => Math.Cos(num1),
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"Тангенс" => Math.Tan(num1),
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_ => throw new InvalidOperationException("Неизвестная операция")
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};
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_result.Text = $"Результат: {result}";
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}
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else
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{
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_result.Text = "Ошибка: Не выбрана операция.";
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}
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}
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catch (FormatException)
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{
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_result.Text = "Ошибка: Неверный формат числа.";
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}
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catch (DivideByZeroException)
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{
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_result.Text = "Ошибка: Деление на ноль.";
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}
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catch (Exception ex)
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{
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Environment.FailFast(ex.Message);
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}
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}
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}
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}
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