Idk

dealer/windows/EditVehicleWindow.xaml.cs

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+using Microsoft.Win32;
+using System;
+using System.IO;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using WinForms = System.Windows.Forms;
+
+namespace dealer
+{
+    public partial class EditVehicleWindow : Window
+    {
+        public string? SelectedPhotoPath { get; private set; }
+        public System.Windows.Media.Color SelectedColor { get; private set; } = Colors.White;
+        public bool WasEdited { get; private set; } = false;
+
+        private DataManager dataManager;
+        private Vehicle vehicle;
+        private bool photoChanged = false;
+
+        public EditVehicleWindow(Vehicle vehicle, DataManager dataManager)
+        {
+            InitializeComponent();
+
+            this.dataManager = dataManager;
+            this.vehicle = vehicle;
+
+            LoadVehicleData();
+        }
+
+        private void LoadVehicleData()
+        {
+            // SPZ
+            SpzTextBox.Text = vehicle.Spz ?? "";
+
+            // Model
+            ModelTextBox.Text = vehicle.Model ?? "";
+
+            // Barva
+            if (!string.IsNullOrEmpty(vehicle.Barva))
+            {
+                try
+                {
+                    SelectedColor = (System.Windows.Media.Color)System.Windows.Media.ColorConverter.ConvertFromString(vehicle.Barva);
+                    ColorPreviewBorder.Background = new SolidColorBrush(SelectedColor);
+                    ColorNameTextBlock.Text = vehicle.Barva;
+                    ColorNameTextBlock.FontStyle = FontStyles.Normal;
+                    ColorNameTextBlock.Foreground = System.Windows.Media.Brushes.Black;
+                }
+                catch
+                {
+                    ColorPreviewBorder.Background = System.Windows.Media.Brushes.White;
+                }
+            }
+
+            // Rok vyroby
+            YearTextBox.Text = vehicle.RokVyroby?.ToString() ?? "";
+
+            // Najete km
+            MileageTextBox.Text = vehicle.NajeteKm?.ToString() ?? "";
+
+            // Cena
+            PriceTextBox.Text = vehicle.Cena?.ToString() ?? "";
+
+            // Fotografie (base64)
+            if (!string.IsNullOrEmpty(vehicle.Fotografie))
+            {
+                try
+                {
+                    byte[] imageBytes = Convert.FromBase64String(vehicle.Fotografie);
+                    using (var ms = new MemoryStream(imageBytes))
+                    {
+                        var bitmap = new BitmapImage();
+                        bitmap.BeginInit();
+                        bitmap.CacheOption = BitmapCacheOption.OnLoad;
+                        bitmap.StreamSource = ms;
+                        bitmap.EndInit();
+                        bitmap.Freeze();
+                        CurrentPhotoImage.Source = bitmap;
+                    }
+                    CurrentPhotoBorder.Visibility = Visibility.Visible;
+                    PhotoPathTextBlock.Text = "Aktualni fotografie zobrazena vyse";
+                }
+                catch
+                {
+                    CurrentPhotoBorder.Visibility = Visibility.Collapsed;
+                }
+            }
+        }
+
+        private void SelectPhotoButton_Click(object sender, RoutedEventArgs e)
+        {
+            Microsoft.Win32.OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog
+            {
+                Title = "Vyberte fotografii vozidla",
+                Filter = "Obrazky|*.jpg;*.jpeg;*.png;*.bmp;*.gif|Vsechny soubory|*.*",
+                FilterIndex = 1
+            };
+
+            if (openFileDialog.ShowDialog() == true)
+            {
+                SelectedPhotoPath = openFileDialog.FileName;
+                PhotoPathTextBlock.Text = SelectedPhotoPath;
+                photoChanged = true;
+
+                // Show preview of new photo
+                try
+                {
+                    var bitmap = new BitmapImage(new Uri(SelectedPhotoPath));
+                    CurrentPhotoImage.Source = bitmap;
+                    CurrentPhotoBorder.Visibility = Visibility.Visible;
+                }
+                catch
+                {
+                    // Ignore preview errors
+                }
+            }
+        }
+
+        private void SelectColorButton_Click(object sender, RoutedEventArgs e)
+        {
+            WinForms.ColorDialog colorDialog = new WinForms.ColorDialog
+            {
+                AllowFullOpen = true,
+                FullOpen = true
+            };
+
+            if (colorDialog.ShowDialog() == WinForms.DialogResult.OK)
+            {
+                SelectedColor = System.Windows.Media.Color.FromArgb(
+                    colorDialog.Color.A,
+                    colorDialog.Color.R,
+                    colorDialog.Color.G,
+                    colorDialog.Color.B);
+
+                ColorPreviewBorder.Background = new SolidColorBrush(SelectedColor);
+                ColorNameTextBlock.Text = $"#{SelectedColor.R:X2}{SelectedColor.G:X2}{SelectedColor.B:X2}";
+                ColorNameTextBlock.FontStyle = FontStyles.Normal;
+                ColorNameTextBlock.Foreground = System.Windows.Media.Brushes.Black;
+            }
+        }
+
+        private void NumericOnly_PreviewTextInput(object sender, TextCompositionEventArgs e)
+        {
+            e.Handled = !int.TryParse(e.Text, out _);
+        }
+
+        private void DecimalOnly_PreviewTextInput(object sender, TextCompositionEventArgs e)
+        {
+            var textBox = sender as System.Windows.Controls.TextBox;
+            string newText = textBox?.Text.Insert(textBox.SelectionStart, e.Text) ?? e.Text;
+            e.Handled = !decimal.TryParse(newText, out _);
+        }
+
+        private void SaveButton_Click(object sender, RoutedEventArgs e)
+        {
+            // Update vehicle properties
+            vehicle.Spz = SpzTextBox.Text;
+            vehicle.Model = ModelTextBox.Text;
+            vehicle.Barva = $"#{SelectedColor.R:X2}{SelectedColor.G:X2}{SelectedColor.B:X2}";
+            vehicle.RokVyroby = int.TryParse(YearTextBox.Text, out int rok) ? rok : (int?)null;
+            vehicle.NajeteKm = int.TryParse(MileageTextBox.Text, out int km) ? km : (int?)null;
+            vehicle.Cena = decimal.TryParse(PriceTextBox.Text, out decimal cena) ? cena : (decimal?)null;
+
+            // Update photo only if changed
+            if (photoChanged && !string.IsNullOrEmpty(SelectedPhotoPath) && File.Exists(SelectedPhotoPath))
+            {
+                byte[] imageBytes = File.ReadAllBytes(SelectedPhotoPath);
+                vehicle.Fotografie = Convert.ToBase64String(imageBytes);
+            }
+
+            this.dataManager.Save();
+            WasEdited = true;
+
+            this.Close();
+        }
+
+        private void CancelButton_Click(object sender, RoutedEventArgs e)
+        {
+            this.Close();
+        }
+    }
+}