refactoring

src/VolumeScroller/MainModel.cs

@@ -1,13 +1,14 @@
-namespace VolumeScroller;
+using Microsoft.Win32;
+
+namespace VolumeScroller;
 
 public class MainModel
 {
     public MainModel()
     {
-        ResetRunOnStartup();
     }
 
-    public int Increment
+    public static int Increment
     {
         get => Properties.Settings.Default.Increment;
         set
@@ -17,7 +18,7 @@ public int Increment
         }
     }
 
-    public bool TaskbarMustBeVisible
+    public static bool TaskbarMustBeVisible
     {
         get => Properties.Settings.Default.TaskbarMustBeVisible;
         set
@@ -28,7 +29,19 @@ public bool TaskbarMustBeVisible
         }
     }
 
-    public bool RunOnStartup
+    public static string TaskBarIconPath => GetTaskbarIconPath();
+
+    private static string GetTaskbarIconPath()
+    {
+        RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize");
+        var isLightTheme = (int)key.GetValue("SystemUsesLightTheme") == 1;
+
+        return isLightTheme
+            ? "/Resources/VolumeScroller_light.ico"
+            : "/Resources/VolumeScroller_dark.ico";
+    }
+
+    public static bool RunOnStartup
     {
         get => Properties.Settings.Default.RunOnStartup;
         set
@@ -38,7 +51,4 @@ public bool RunOnStartup
             new StartupManager(Process.GetCurrentProcess()).Set(value);
         }
     }
-
-    public void ResetRunOnStartup() 
-        => RunOnStartup = Properties.Settings.Default.RunOnStartup;
 }

src/VolumeScroller/MainViewModel.cs

@@ -4,53 +4,36 @@ namespace VolumeScroller;
 
 public class MainViewModel : ViewModelBase, IDisposable
 {
-    private readonly MainModel mainModel;
     private string taskBarIconPath;
 
     public MainViewModel(MainModel mainModel)
-    {
-        this.mainModel = mainModel;       
-        TaskBarIconPath = GetTaskbarIconPath();
+    {     
         SystemEvents.UserPreferenceChanged += UserPreferenceChanged;
     }
 
-    public string TaskBarIconPath
-    {
-        get => taskBarIconPath;
-        set => SetProperty(ref taskBarIconPath, value);
-    }
+    public string TaskBarIconPath => MainModel.TaskBarIconPath;
 
-    public bool RunOnStartup
+    public static bool RunOnStartup
     {
-        get => mainModel.RunOnStartup;
-        set => mainModel.RunOnStartup = value;
+        get => MainModel.RunOnStartup;
+        set => MainModel.RunOnStartup = value;
     }
 
-    public bool TaskbarMustBeVisible
+    public static bool TaskbarMustBeVisible
     {
-        get => mainModel.TaskbarMustBeVisible;
-        set => mainModel.TaskbarMustBeVisible = value;
+        get => MainModel.TaskbarMustBeVisible;
+        set => MainModel.TaskbarMustBeVisible = value;
     }
 
-    public int Increment
+    public static int Increment
     {
-        get => mainModel.Increment * 2;
-        set => mainModel.Increment = value / 2;
+        get => MainModel.Increment * 2;
+        set => MainModel.Increment = value / 2;
     }
 
     public void Dispose()
         => SystemEvents.UserPreferenceChanged -= UserPreferenceChanged;
 
-    private void UserPreferenceChanged(object sender, EventArgs e)
-        => TaskBarIconPath = GetTaskbarIconPath();
-
-    private static string GetTaskbarIconPath()
-    {
-        RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize");
-        var isLightTheme = (int)key.GetValue("SystemUsesLightTheme") == 1;
-
-        return isLightTheme
-            ? "/Resources/VolumeScroller_light.ico"
-            : "/Resources/VolumeScroller_dark.ico";
-    }
+    private void UserPreferenceChanged(object sender, EventArgs e) 
+        => OnPropertyChanged(nameof(TaskBarIconPath));
 }

src/VolumeScroller/MainWindow.xaml → src/VolumeScroller/Window.xaml

@@ -40,12 +40,13 @@
                        Grid.Row="0"
                        Grid.Column="0"
                        HorizontalAlignment="Right" />
-                <Label Content="{Binding Increment}"
+                <Label Content="{Binding ElementName=IncrementSlider, Path=Value}"
                        HorizontalAlignment="Left"
                        Grid.Row="0"
                        Grid.Column="1" />
             </StackPanel>
-            <Slider Width="100"
+            <Slider x:Name="IncrementSlider"
+                    Width="100"
                     Minimum="2"
                     Maximum="20"
                     Grid.Column="1"
@@ -55,6 +56,7 @@
                     Value="{Binding Increment, Mode=TwoWay}"
                     TickPlacement="BottomRight"
                     AutoToolTipPlacement="TopLeft"
+                    AutoToolTipPrecision="0"
                     IsSnapToTickEnabled="True"
                     TickFrequency="2" />
             <Label Content="Run on startup"