Add placement-dependent horizontal screen offset properties

osu.Game/Overlays/NotificationOverlay.cs

@@ -30,6 +30,11 @@ public class NotificationOverlay : OsuFocusedOverlayContainer, INamedOverlayComp
 
         private FlowContainer<NotificationSection> sections;
 
+        /// <summary>
+        /// A horizontal offset to apply to the game-wide screen.
+        /// </summary>
+        public float HorizontalScreenOffset => -width + X;
+
         /// <summary>
         /// Provide a source for the toolbar height.
         /// </summary>

osu.Game/Overlays/SettingsOverlay.cs

@@ -21,6 +21,8 @@ public class SettingsOverlay : SettingsPanel, INamedOverlayComponent
         public LocalisableString Title => SettingsStrings.HeaderTitle;
         public LocalisableString Description => SettingsStrings.HeaderDescription;
 
+        public override float HorizontalScreenOffset => base.HorizontalScreenOffset + (lastOpenedSubPanel?.HorizontalScreenOffset ?? 0f);
+
         protected override IEnumerable<SettingsSection> CreateSections() => new SettingsSection[]
         {
             new GeneralSection(),

osu.Game/Overlays/SettingsPanel.cs

@@ -34,6 +34,11 @@ public abstract class SettingsPanel : OsuFocusedOverlayContainer
 
         protected override Container<Drawable> Content => ContentContainer;
 
+        /// <summary>
+        /// A horizontal offset to apply to the game-wide screen.
+        /// </summary>
+        public virtual float HorizontalScreenOffset => (WIDTH + Content?.X) ?? 0f;
+
         protected Sidebar Sidebar;
         private SidebarButton selectedSidebarButton;
 
@@ -64,6 +69,7 @@ private void load()
         {
             InternalChild = ContentContainer = new NonMaskedContent
             {
+                X = -WIDTH + ExpandedPosition,
                 Width = WIDTH,
                 RelativeSizeAxes = Axes.Y,
                 Children = new Drawable[]