add remove button

MaxSlurper/MainWindow.xaml

@@ -112,54 +112,71 @@ Padding="16,8"
    <RowDefinition Height="*" />
     </Grid.RowDefinitions>
 
-    <StackPanel Grid.Row="0" Margin="0,0,0,12">
+    <DockPanel Grid.Row="0" Margin="0,0,0,12">
+        <ui:Button DockPanel.Dock="Right"
+           Content="Verlauf löschen"
+           Appearance="Secondary"
+           Icon="{ui:SymbolIcon Delete24}"
+           Command="{Binding ClearHistoryCommand}"
+           Padding="8,4"
+           VerticalAlignment="Center" />
+        <StackPanel>
             <TextBlock Text="Farbverlauf"
                 Style="{StaticResource HeaderText}" />
             <TextBlock Text="Klicken zum Kopieren"
                 Style="{StaticResource SubtleText}"
                 Margin="0,4,0,0" />
         </StackPanel>
+    </DockPanel>
 
     <ScrollViewer Grid.Row="1" 
      VerticalScrollBarVisibility="Auto"
 HorizontalScrollBarVisibility="Disabled">
   <ItemsControl ItemsSource="{Binding History}">
+    <ItemsControl.ItemContainerStyle>
+     <Style TargetType="ContentPresenter">
+      <Setter Property="HorizontalAlignment" Value="Stretch" />
+     </Style>
+    </ItemsControl.ItemContainerStyle>
     <ItemsControl.ItemTemplate>
      <DataTemplate>
- <ui:CardControl Margin="0,0,0,8" 
-  Padding="8"
+ <ui:Card Margin="0,0,0,8" 
+  Padding="12"
   Cursor="Hand"
-  HorizontalAlignment="Stretch"
-    HorizontalContentAlignment="Left">
-<ui:CardControl.InputBindings>
+  HorizontalAlignment="Stretch">
+<ui:Card.InputBindings>
     <MouseBinding MouseAction="LeftClick" 
 Command="{Binding DataContext.CopyHexCommand, RelativeSource={RelativeSource AncestorType=ui:FluentWindow}}" 
    CommandParameter="{Binding}" />
-</ui:CardControl.InputBindings>
+</ui:Card.InputBindings>
 
-<Grid HorizontalAlignment="Stretch">
-   <Grid.ColumnDefinitions>
-        <ColumnDefinition Width="Auto" />
-  <ColumnDefinition Width="*" />
-     </Grid.ColumnDefinitions>
+<DockPanel LastChildFill="True">
+    <!-- Delete button pinned to the right -->
+    <ui:Button DockPanel.Dock="Right"
+       Icon="{ui:SymbolIcon Dismiss24}"
+       Appearance="Secondary"
+       ToolTip="Farbe entfernen"
+       Command="{Binding DataContext.RemoveColorCommand, RelativeSource={RelativeSource AncestorType=ui:FluentWindow}}"
+       CommandParameter="{Binding}"
+       Padding="6"
+       Margin="8,0,0,0"
+       VerticalAlignment="Center" />
 
     <!-- Color preview on the left -->
-<Border Width="48" 
+    <Border DockPanel.Dock="Left"
+       Width="48" 
        Height="48" 
        Background="{Binding Brush}" 
        CornerRadius="8" 
        BorderBrush="{DynamicResource ControlStrokeColorDefaultBrush}"
        BorderThickness="1"
-     VerticalAlignment="Center"
- HorizontalAlignment="Left" />
+       VerticalAlignment="Center" />
 
-<!-- Text info in the middle -->
-   <StackPanel Grid.Column="1" 
-   Margin="12,0,0,0" 
-  VerticalAlignment="Center"
-    HorizontalAlignment="Left">
+    <!-- Text info fills the middle -->
+    <StackPanel Margin="12,0,0,0" 
+       VerticalAlignment="Center">
         <TextBlock Text="{Binding Hex}" 
-FontWeight="Medium"
+           FontWeight="Medium"
            FontSize="15"
            Foreground="{DynamicResource TextFillColorPrimaryBrush}" />
         <TextBlock Text="{Binding Rgb}" 
@@ -167,8 +184,8 @@ FontWeight="Medium"
            Foreground="{DynamicResource TextFillColorSecondaryBrush}" 
            Margin="0,2,0,0" />
     </StackPanel>
-  </Grid>
- </ui:CardControl>
+</DockPanel>
+ </ui:Card>
 </DataTemplate>
 </ItemsControl.ItemTemplate>
       </ItemsControl>

MaxSlurper/Services/SettingsService.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Text.Json;
 using System.Windows.Input;
 using MaxSlurper.Models;
@@ -10,11 +12,14 @@ namespace MaxSlurper.Services
     {
    AppSettings LoadSettings();
    void SaveSettings(AppSettings settings);
+   List<ColorItem> LoadHistory();
+   void SaveHistory(IEnumerable<ColorItem> history);
     }
 
  public class SettingsService : ISettingsService
     {
         private readonly string _settingsPath;
+        private readonly string _historyPath;
 
  public SettingsService()
         {
@@ -22,6 +27,7 @@ namespace MaxSlurper.Services
      var appFolder = Path.Combine(appData, "MaxSlurper");
    Directory.CreateDirectory(appFolder);
        _settingsPath = Path.Combine(appFolder, "settings.json");
+            _historyPath = Path.Combine(appFolder, "history.json");
         }
 
         public AppSettings LoadSettings()
@@ -94,10 +100,52 @@ var json = File.ReadAllText(_settingsPath);
      catch { }
   }
 
+        public List<ColorItem> LoadHistory()
+        {
+            try
+            {
+                if (File.Exists(_historyPath))
+                {
+                    var json = File.ReadAllText(_historyPath);
+                    var items = JsonSerializer.Deserialize<List<HistoryEntry>>(json);
+                    if (items != null)
+                    {
+                        return items.Select(e =>
+                        {
+                            var item = new ColorItem { R = e.R, G = e.G, B = e.B };
+                            item.UpdateDerived();
+                            return item;
+                        }).ToList();
+                    }
+                }
+            }
+            catch { }
+
+            return new List<ColorItem>();
+        }
+
+        public void SaveHistory(IEnumerable<ColorItem> history)
+        {
+            try
+            {
+                var entries = history.Select(c => new HistoryEntry { R = c.R, G = c.G, B = c.B }).ToList();
+                var json = JsonSerializer.Serialize(entries, new JsonSerializerOptions { WriteIndented = true });
+                File.WriteAllText(_historyPath, json);
+            }
+            catch { }
+        }
+
         private class SettingsData
         {
     public string[]? HotkeyModifiers { get; set; }
    public string? HotkeyKey { get; set; }
      }
+
+        private class HistoryEntry
+        {
+            public byte R { get; set; }
+            public byte G { get; set; }
+            public byte B { get; set; }
+        }
     }
 }

MaxSlurper/ViewModels/MainViewModel.cs

@@ -38,6 +38,7 @@ namespace MaxSlurper.ViewModels
 
  public ICommand PickColorCommand { get; }
  public ICommand ClearHistoryCommand { get; }
+ public ICommand RemoveColorCommand { get; }
  public ICommand CopyHexCommand { get; }
  public ICommand OpenColorPickerCommand { get; }
  public ICommand OpenSettingsCommand { get; }
@@ -51,10 +52,18 @@ namespace MaxSlurper.ViewModels
  Settings = _settingsService.LoadSettings();
 
  PickColorCommand = new RelayCommand(async _ => await PickColor());
- ClearHistoryCommand = new RelayCommand(_ => ClearHistory());
+ ClearHistoryCommand = new RelayCommand(_ => ClearHistory(), _ => History.Count > 0);
+ RemoveColorCommand = new RelayCommand(RemoveColor, _ => _ is ColorItem);
  CopyHexCommand = new RelayCommand(CopyHex, _ => Selected != null || _ is ColorItem);
  OpenColorPickerCommand = new RelayCommand(_ => OpenColorPicker());
  OpenSettingsCommand = new RelayCommand(_ => OpenSettings());
+
+ // Restore persisted history
+ foreach (var item in _settingsService.LoadHistory())
+ History.Add(item);
+
+ if (History.Count > 0)
+ Selected = History[0];
  }
 
  public System.Action<AppSettings>? OnSettingsChanged { get; set; }
@@ -79,6 +88,8 @@ namespace MaxSlurper.ViewModels
  Selected = item;
 
  System.Windows.Clipboard.SetText(item.Hex);
+ _settingsService.SaveHistory(History);
+ ((RelayCommand)ClearHistoryCommand).RaiseCanExecuteChanged();
  }
 
  private void OpenColorPicker()
@@ -104,6 +115,8 @@ namespace MaxSlurper.ViewModels
  Selected = item;
 
  System.Windows.Clipboard.SetText(item.Hex);
+ _settingsService.SaveHistory(History);
+ ((RelayCommand)ClearHistoryCommand).RaiseCanExecuteChanged();
  }
  }
 
@@ -119,6 +132,23 @@ namespace MaxSlurper.ViewModels
  private void ClearHistory()
  {
  History.Clear();
+ Selected = null;
+ _settingsService.SaveHistory(History);
+ ((RelayCommand)ClearHistoryCommand).RaiseCanExecuteChanged();
+ }
+
+ private void RemoveColor(object? parameter)
+ {
+ if (parameter is not ColorItem item) return;
+
+ var wasSelected = item == Selected;
+ History.Remove(item);
+
+ if (wasSelected)
+ Selected = History.Count > 0 ? History[0] : null;
+
+ _settingsService.SaveHistory(History);
+ ((RelayCommand)ClearHistoryCommand).RaiseCanExecuteChanged();
  }
 
  private void CopyHex(object? parameter)
@@ -136,7 +166,13 @@ namespace MaxSlurper.ViewModels
 
  private void UpdateSelected()
  {
- if (Selected == null) return;
+ if (Selected == null)
+ {
+ SelectedColorBrush = System.Windows.Media.Brushes.White;
+ SelectedHex = "#FFFFFF";
+ SelectedRgb = "255,255,255";
+ return;
+ }
  SelectedColorBrush = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(Selected.R, Selected.G, Selected.B));
  SelectedHex = Selected.Hex;
  SelectedRgb = Selected.Rgb;