Fix rotate tool button in editor disabled when selecting 1 circle

osu.Game.Rulesets.Osu.Tests/Editor/TestScenePreciseRotation.cs

@@ -24,14 +24,38 @@ public partial class TestScenePreciseRotation : TestSceneOsuEditor
         [Test]
         public void TestHotkeyHandling()
         {
-            AddStep("select single circle", () => EditorBeatmap.SelectedHitObjects.Add(EditorBeatmap.HitObjects.OfType<HitCircle>().First()));
+            AddStep("deselect everything", () => EditorBeatmap.SelectedHitObjects.Clear());
             AddStep("press rotate hotkey", () =>
             {
                 InputManager.PressKey(Key.ControlLeft);
                 InputManager.Key(Key.R);
                 InputManager.ReleaseKey(Key.ControlLeft);
             });
-            AddUntilStep("no popover present", () => this.ChildrenOfType<PreciseRotationPopover>().Count(), () => Is.Zero);
+            AddUntilStep("no popover present", getPopover, () => Is.Null);
+
+            AddStep("select single circle",
+                () => EditorBeatmap.SelectedHitObjects.Add(EditorBeatmap.HitObjects.OfType<HitCircle>().First()));
+            AddStep("press rotate hotkey", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Key(Key.R);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+            AddUntilStep("popover present", getPopover, () => Is.Not.Null);
+            AddAssert("only playfield centre origin rotation available", () =>
+            {
+                var popover = getPopover();
+                var buttons = popover.ChildrenOfType<EditorRadioButton>();
+                return buttons.Any(btn => btn.Text == "Selection centre" && !btn.Enabled.Value)
+                       && buttons.Any(btn => btn.Text == "Playfield centre" && btn.Enabled.Value);
+            });
+            AddStep("press rotate hotkey", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Key(Key.R);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+            AddUntilStep("no popover present", getPopover, () => Is.Null);
 
             AddStep("select first three objects", () =>
             {
@@ -44,14 +68,23 @@ public void TestHotkeyHandling()
                 InputManager.Key(Key.R);
                 InputManager.ReleaseKey(Key.ControlLeft);
             });
-            AddUntilStep("popover present", () => this.ChildrenOfType<PreciseRotationPopover>().Count(), () => Is.EqualTo(1));
+            AddUntilStep("popover present", getPopover, () => Is.Not.Null);
+            AddAssert("both origin rotation available", () =>
+            {
+                var popover = getPopover();
+                var buttons = popover.ChildrenOfType<EditorRadioButton>();
+                return buttons.Any(btn => btn.Text == "Selection centre" && btn.Enabled.Value)
+                       && buttons.Any(btn => btn.Text == "Playfield centre" && btn.Enabled.Value);
+            });
             AddStep("press rotate hotkey", () =>
             {
                 InputManager.PressKey(Key.ControlLeft);
                 InputManager.Key(Key.R);
                 InputManager.ReleaseKey(Key.ControlLeft);
             });
-            AddUntilStep("no popover present", () => this.ChildrenOfType<PreciseRotationPopover>().Count(), () => Is.Zero);
+            AddUntilStep("no popover present", getPopover, () => Is.Null);
+
+            PreciseRotationPopover? getPopover() => this.ChildrenOfType<PreciseRotationPopover>().SingleOrDefault();
         }
 
         [Test]

osu.Game.Rulesets.Osu/Edit/OsuSelectionRotationHandler.cs

@@ -41,7 +41,8 @@ protected override void LoadComplete()
         private void updateState()
         {
             var quad = GeometryUtils.GetSurroundingQuad(selectedMovableObjects);
-            CanRotate.Value = quad.Width > 0 || quad.Height > 0;
+            CanRotateSelectionOrigin.Value = quad.Width > 0 || quad.Height > 0;
+            CanRotatePlayfieldOrigin.Value = selectedMovableObjects.Any();
         }
 
         private OsuHitObject[]? objectsInRotation;

osu.Game.Rulesets.Osu/Edit/PreciseRotationPopover.cs

@@ -24,6 +24,8 @@ public partial class PreciseRotationPopover : OsuPopover
         private SliderWithTextBoxInput<float> angleInput = null!;
         private EditorRadioButtonCollection rotationOrigin = null!;
 
+        private RadioButton selectionCentreButton = null!;
+
         public PreciseRotationPopover(SelectionRotationHandler rotationHandler)
         {
             this.rotationHandler = rotationHandler;
@@ -59,13 +61,17 @@ private void load()
                             new RadioButton("Playfield centre",
                                 () => rotationInfo.Value = rotationInfo.Value with { Origin = RotationOrigin.PlayfieldCentre },
                                 () => new SpriteIcon { Icon = FontAwesome.Regular.Square }),
-                            new RadioButton("Selection centre",
+                            selectionCentreButton = new RadioButton("Selection centre",
                                 () => rotationInfo.Value = rotationInfo.Value with { Origin = RotationOrigin.SelectionCentre },
                                 () => new SpriteIcon { Icon = FontAwesome.Solid.VectorSquare })
                         }
                     }
                 }
             };
+            selectionCentreButton.Selected.DisabledChanged += isDisabled =>
+            {
+                selectionCentreButton.TooltipText = isDisabled ? "Select more than one object to perform selection-based rotation." : string.Empty;
+            };
         }
 
         protected override void LoadComplete()
@@ -76,6 +82,11 @@ protected override void LoadComplete()
             angleInput.Current.BindValueChanged(angle => rotationInfo.Value = rotationInfo.Value with { Degrees = angle.NewValue });
             rotationOrigin.Items.First().Select();
 
+            rotationHandler.CanRotateSelectionOrigin.BindValueChanged(e =>
+            {
+                selectionCentreButton.Selected.Disabled = !e.NewValue;
+            }, true);
+
             rotationInfo.BindValueChanged(rotation =>
             {
                 rotationHandler.Update(rotation.NewValue.Degrees, rotation.NewValue.Origin == RotationOrigin.PlayfieldCentre ? OsuPlayfield.BASE_SIZE / 2 : null);

osu.Game.Rulesets.Osu/Edit/TransformToolboxGroup.cs

@@ -22,6 +22,9 @@ public partial class TransformToolboxGroup : EditorToolboxGroup, IKeyBindingHand
 
         private EditorToolButton rotateButton = null!;
 
+        private Bindable<bool> canRotatePlayfieldOrigin = null!;
+        private Bindable<bool> canRotateSelectionOrigin = null!;
+
         public SelectionRotationHandler RotationHandler { get; init; } = null!;
 
         public TransformToolboxGroup()
@@ -51,9 +54,20 @@ protected override void LoadComplete()
         {
             base.LoadComplete();
 
+            // aggregate two values into canRotate
+            canRotatePlayfieldOrigin = RotationHandler.CanRotatePlayfieldOrigin.GetBoundCopy();
+            canRotatePlayfieldOrigin.BindValueChanged(_ => updateCanRotateAggregate());
+
+            canRotateSelectionOrigin = RotationHandler.CanRotateSelectionOrigin.GetBoundCopy();
+            canRotateSelectionOrigin.BindValueChanged(_ => updateCanRotateAggregate());
+
+            void updateCanRotateAggregate()
+            {
+                canRotate.Value = RotationHandler.CanRotatePlayfieldOrigin.Value || RotationHandler.CanRotateSelectionOrigin.Value;
+            }
+
             // bindings to `Enabled` on the buttons are decoupled on purpose
             // due to the weird `OsuButton` behaviour of resetting `Enabled` to `false` when `Action` is set.
-            canRotate.BindTo(RotationHandler.CanRotate);
             canRotate.BindValueChanged(_ => rotateButton.Enabled.Value = canRotate.Value, true);
         }
 

osu.Game.Tests/Visual/Editing/TestSceneComposeSelectBox.cs

@@ -89,7 +89,7 @@ public TestSelectionRotationHandler(Func<Container> getTargetContainer)
             {
                 this.getTargetContainer = getTargetContainer;
 
-                CanRotate.Value = true;
+                CanRotateSelectionOrigin.Value = true;
             }
 
             [CanBeNull]

osu.Game/Overlays/SkinEditor/SkinSelectionRotationHandler.cs

@@ -41,7 +41,7 @@ protected override void LoadComplete()
 
         private void updateState()
         {
-            CanRotate.Value = selectedItems.Count > 0;
+            CanRotateSelectionOrigin.Value = selectedItems.Count > 0;
         }
 
         private Drawable[]? objectsInRotation;

osu.Game/Rulesets/Edit/HitObjectComposer.cs

@@ -212,6 +212,14 @@ private void load(OsuConfigManager config)
                                       .Select(t => new RadioButton(t.Name, () => toolSelected(t), t.CreateIcon))
                                       .ToList();
 
+            foreach (var item in toolboxCollection.Items)
+            {
+                item.Selected.DisabledChanged += isDisabled =>
+                {
+                    item.TooltipText = isDisabled ? "Add at least one timing point first!" : string.Empty;
+                };
+            }
+
             TernaryStates = CreateTernaryButtons().ToArray();
             togglesCollection.AddRange(TernaryStates.Select(b => new DrawableTernaryButton(b)));
 
@@ -244,6 +252,14 @@ protected override void LoadComplete()
                 if (!timing.NewValue)
                     setSelectTool();
             });
+
+            EditorBeatmap.HasTiming.BindValueChanged(hasTiming =>
+            {
+                foreach (var item in toolboxCollection.Items)
+                {
+                    item.Selected.Disabled = !hasTiming.NewValue;
+                }
+            }, true);
         }
 
         protected override void Update()

osu.Game/Screens/Edit/Components/RadioButtons/EditorRadioButton.cs

@@ -33,9 +33,6 @@ public partial class EditorRadioButton : OsuButton, IHasTooltip
 
         private Drawable icon = null!;
 
-        [Resolved]
-        private EditorBeatmap? editorBeatmap { get; set; }
-
         public EditorRadioButton(RadioButton button)
         {
             Button = button;
@@ -76,8 +73,6 @@ protected override void LoadComplete()
                     Selected?.Invoke(Button);
             };
 
-            editorBeatmap?.HasTiming.BindValueChanged(hasTiming => Button.Selected.Disabled = !hasTiming.NewValue, true);
-
             Button.Selected.BindDisabledChanged(disabled => Enabled.Value = !disabled, true);
             updateSelectionState();
         }
@@ -99,6 +94,6 @@ private void updateSelectionState()
             X = 40f
         };
 
-        public LocalisableString TooltipText => Enabled.Value ? string.Empty : "Add at least one timing point first!";
+        public LocalisableString TooltipText => Button.TooltipText;
     }
 }

osu.Game/Screens/Edit/Components/RadioButtons/RadioButton.cs

@@ -4,13 +4,15 @@
 using System;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
+using osu.Framework.Localisation;
 
 namespace osu.Game.Screens.Edit.Components.RadioButtons
 {
     public class RadioButton
     {
         /// <summary>
         /// Whether this <see cref="RadioButton"/> is selected.
+        /// Disable this bindable to disable the button.
         /// </summary>
         public readonly BindableBool Selected;
 
@@ -50,5 +52,8 @@ public void Select()
         /// Deselects this <see cref="RadioButton"/>.
         /// </summary>
         public void Deselect() => Selected.Value = false;
+
+        // Tooltip text that will be shown when hovered over
+        public LocalisableString TooltipText { get; set; } = string.Empty;
     }
 }

osu.Game/Screens/Edit/Compose/Components/SelectionBox.cs

@@ -174,7 +174,7 @@ public string Text
         private void load()
         {
             if (rotationHandler != null)
-                canRotate.BindTo(rotationHandler.CanRotate);
+                canRotate.BindTo(rotationHandler.CanRotateSelectionOrigin);
 
             canRotate.BindValueChanged(_ => recreate(), true);
         }

osu.Game/Screens/Edit/Compose/Components/SelectionRotationHandler.cs

@@ -13,9 +13,14 @@ namespace osu.Game.Screens.Edit.Compose.Components
     public partial class SelectionRotationHandler : Component
     {
         /// <summary>
-        /// Whether the rotation can currently be performed.
+        /// Whether rotation anchored by the selection origin can currently be performed.
         /// </summary>
-        public Bindable<bool> CanRotate { get; private set; } = new BindableBool();
+        public Bindable<bool> CanRotateSelectionOrigin { get; private set; } = new BindableBool();
+
+        /// <summary>
+        /// Whether rotation anchored by the center of the playfield can currently be performed.
+        /// </summary>
+        public Bindable<bool> CanRotatePlayfieldOrigin { get; private set; } = new BindableBool();
 
         /// <summary>
         /// Performs a single, instant, atomic rotation operation.