CourseWork/GUI/Views/ConfirmationView.axaml.cs - master - Landilf/2413_Ryumin_CourseWork

CourseWork/GUI/Views/ConfirmationView.axaml.cs
81 строка3 KB
Landilf
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27 янв 2026, 13:57
27 янв 2026, 13:57753b3e7
using Avalonia;
using Avalonia.Controls;
using Avalonia.Media;
using GUI.ViewModels;
using System.Globalization;

namespace GUI.Views;

public partial class ConfirmationView : UserControl
{
  /// <summary>
  /// Конструктор.
  /// </summary>
  public ConfirmationView() { InitializeComponent(); }

  /// <summary>
  /// Обработчик смены DataContext.
  /// </summary>
  /// <param name="parEventArgs">Аргументы события.</param>
  protected override void OnDataContextChanged(EventArgs parEventArgs)
  {
    base.OnDataContextChanged(parEventArgs);
    if (DataContext is ConfirmationViewModel vm)
    {
      vm.PropertyChanged += (s, e) => InvalidateVisual();
    }
  }

  /// <summary>
  /// Отрисовывает экран подтверждения.
  /// </summary>
  /// <param name="parContext">Контекст рисования.</param>
  public override void Render(DrawingContext parContext)
  {
    base.Render(parContext);
    if (DataContext is not ConfirmationViewModel vm)
    {
        return;
    }

    // Полупрозрачный фон поверх всего
    parContext.DrawRectangle(new SolidColorBrush(Color.Parse("#AAFDE9D9")), null, Bounds);

    double centerX = Bounds.Width / 2;
    double centerY = Bounds.Height / 2;
    var brush = new SolidColorBrush(Color.Parse("#D93025"));

    // Подготовка текста сообщения с переносом строк
    var msg = new FormattedText(vm.Message, CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
      new Typeface("Arial", FontStyle.Normal, FontWeight.Bold), 24, brush)
    {
      MaxTextWidth = 500,
      TextAlignment = TextAlignment.Center
    };

    // Плашка диалога (динамическая высота в зависимости от текста)
    double dialogHeight = Math.Max(250, msg.Height + 150);
    var dialogRect = new Rect(centerX - 300, centerY - dialogHeight / 2, 600, dialogHeight);
    parContext.DrawRectangle(new SolidColorBrush(Color.Parse("#FDE9D9")), new Pen(brush, 2), dialogRect);
    parContext.DrawText(msg, new Point(centerX - 250, dialogRect.Y + 40));

    for (int i = 0; i < vm.MenuItems.Count; i++)
    {
      var item = vm.MenuItems[i];
      bool isSelected = i == vm.SelectedIndex;
      var rect = new Rect(centerX - 220 + i * 240, dialogRect.Bottom - 80, 200, 50);
      if (isSelected) 
      {
        parContext.DrawRectangle(new SolidColorBrush(Color.Parse("#F4CCCC")), new Pen(new SolidColorBrush(Color.Parse("#EA9999")), 2), rect);
      }
      else
      {
        parContext.DrawRectangle(null, new Pen(new SolidColorBrush(Color.Parse("#EA9999")), 1), rect);
      }
      
      var text = new FormattedText(item.Title, CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
        new Typeface("Arial", FontStyle.Normal, isSelected ? FontWeight.Bold : FontWeight.Normal), 20, brush);
      parContext.DrawText(text, new Point(rect.X + (rect.Width - text.Width) / 2, rect.Y + (rect.Height - text.Height) / 2));
    }
  }
}