Merge pull request #7753 from peppy/placement-display-in-timeline

Show current placement blueprint in timeline

osu.Game.Rulesets.Mania/Edit/Blueprints/ManiaPlacementBlueprint.cs

@@ -56,7 +56,7 @@ namespace osu.Game.Rulesets.Mania.Edit.Blueprints
 
         protected override void OnMouseUp(MouseUpEvent e)
         {
-            EndPlacement();
+            EndPlacement(true);
             base.OnMouseUp(e);
         }
 

osu.Game.Rulesets.Osu/Edit/Blueprints/HitCircles/HitCirclePlacementBlueprint.cs

@@ -30,12 +30,13 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.HitCircles
 
         protected override bool OnClick(ClickEvent e)
         {
-            EndPlacement();
+            EndPlacement(true);
             return true;
         }
 
         public override void UpdatePosition(Vector2 screenSpacePosition)
         {
+            BeginPlacement();
             HitObject.Position = ToLocalSpace(screenSpacePosition);
         }
     }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderPlacementBlueprint.cs

@@ -68,6 +68,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
             switch (state)
             {
                 case PlacementState.Initial:
+                    BeginPlacement();
                     HitObject.Position = ToLocalSpace(screenSpacePosition);
                     break;
 
@@ -132,7 +133,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
         private void endCurve()
         {
             updateSlider();
-            EndPlacement();
+            EndPlacement(true);
         }
 
         protected override void Update()

osu.Game.Rulesets.Osu/Edit/Blueprints/Spinners/SpinnerPlacementBlueprint.cs

@@ -45,7 +45,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Spinners
                     return false;
 
                 HitObject.EndTime = EditorClock.CurrentTime;
-                EndPlacement();
+                EndPlacement(true);
             }
             else
             {

osu.Game/Rulesets/Edit/HitObjectComposer.cs

@@ -251,15 +251,22 @@ namespace osu.Game.Rulesets.Edit
 
         public void BeginPlacement(HitObject hitObject)
         {
+            EditorBeatmap.PlacementObject.Value = hitObject;
+
             if (distanceSnapGrid != null)
                 hitObject.StartTime = GetSnappedPosition(distanceSnapGrid.ToLocalSpace(inputManager.CurrentState.Mouse.Position), hitObject.StartTime).time;
         }
 
-        public void EndPlacement(HitObject hitObject)
+        public void EndPlacement(HitObject hitObject, bool commit)
         {
-            EditorBeatmap.Add(hitObject);
+            EditorBeatmap.PlacementObject.Value = null;
 
-            adjustableClock.Seek(hitObject.StartTime);
+            if (commit)
+            {
+                EditorBeatmap.Add(hitObject);
+
+                adjustableClock.Seek(hitObject.StartTime);
+            }
 
             showGridFor(Enumerable.Empty<HitObject>());
         }

osu.Game/Rulesets/Edit/PlacementBlueprint.cs

@@ -103,11 +103,12 @@ namespace osu.Game.Rulesets.Edit
         /// Signals that the placement of <see cref="HitObject"/> has finished.
         /// This will destroy this <see cref="PlacementBlueprint"/>, and add the <see cref="HitObject"/> to the <see cref="Beatmap"/>.
         /// </summary>
-        protected void EndPlacement()
+        /// <param name="commit">Whether the object should be committed.</param>
+        public void EndPlacement(bool commit)
         {
             if (!PlacementBegun)
                 BeginPlacement();
-            placementHandler.EndPlacement(HitObject);
+            placementHandler.EndPlacement(HitObject, commit);
         }
 
         /// <summary>

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

@@ -32,7 +32,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
         protected DragBox DragBox { get; private set; }
 
-        private Container<SelectionBlueprint> selectionBlueprints;
+        protected Container<SelectionBlueprint> SelectionBlueprints { get; private set; }
 
         private SelectionHandler selectionHandler;
 
@@ -62,7 +62,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             {
                 DragBox = CreateDragBox(select),
                 selectionHandler,
-                selectionBlueprints = CreateSelectionBlueprintContainer(),
+                SelectionBlueprints = CreateSelectionBlueprintContainer(),
                 DragBox.CreateProxy().With(p => p.Depth = float.MinValue)
             });
 
@@ -73,7 +73,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             selectedHitObjects.ItemsAdded += objects =>
             {
                 foreach (var o in objects)
-                    selectionBlueprints.FirstOrDefault(b => b.HitObject == o)?.Select();
+                    SelectionBlueprints.FirstOrDefault(b => b.HitObject == o)?.Select();
 
                 SelectionChanged?.Invoke(selectedHitObjects);
             };
@@ -81,7 +81,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             selectedHitObjects.ItemsRemoved += objects =>
             {
                 foreach (var o in objects)
-                    selectionBlueprints.FirstOrDefault(b => b.HitObject == o)?.Deselect();
+                    SelectionBlueprints.FirstOrDefault(b => b.HitObject == o)?.Deselect();
 
                 SelectionChanged?.Invoke(selectedHitObjects);
             };
@@ -230,7 +230,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
         private void removeBlueprintFor(HitObject hitObject)
         {
-            var blueprint = selectionBlueprints.SingleOrDefault(m => m.HitObject == hitObject);
+            var blueprint = SelectionBlueprints.SingleOrDefault(m => m.HitObject == hitObject);
             if (blueprint == null)
                 return;
 
@@ -239,7 +239,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             blueprint.Selected -= onBlueprintSelected;
             blueprint.Deselected -= onBlueprintDeselected;
 
-            selectionBlueprints.Remove(blueprint);
+            SelectionBlueprints.Remove(blueprint);
         }
 
         protected virtual void AddBlueprintFor(HitObject hitObject)
@@ -251,7 +251,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             blueprint.Selected += onBlueprintSelected;
             blueprint.Deselected += onBlueprintDeselected;
 
-            selectionBlueprints.Add(blueprint);
+            SelectionBlueprints.Add(blueprint);
         }
 
         #endregion
@@ -278,7 +278,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             if (!allowDeselection && selectionHandler.SelectedBlueprints.Any(s => s.IsHovered))
                 return;
 
-            foreach (SelectionBlueprint blueprint in selectionBlueprints.AliveChildren)
+            foreach (SelectionBlueprint blueprint in SelectionBlueprints.AliveChildren)
             {
                 if (blueprint.IsHovered)
                 {
@@ -308,7 +308,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// <param name="rect">The rectangle to perform a selection on in screen-space coordinates.</param>
         private void select(RectangleF rect)
         {
-            foreach (var blueprint in selectionBlueprints)
+            foreach (var blueprint in SelectionBlueprints)
             {
                 if (blueprint.IsAlive && blueprint.IsPresent && rect.Contains(blueprint.SelectionPoint))
                     blueprint.Select();
@@ -322,7 +322,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// </summary>
         private void selectAll()
         {
-            selectionBlueprints.ToList().ForEach(m => m.Select());
+            SelectionBlueprints.ToList().ForEach(m => m.Select());
             selectionHandler.UpdateVisibility();
         }
 
@@ -334,14 +334,14 @@ namespace osu.Game.Screens.Edit.Compose.Components
         private void onBlueprintSelected(SelectionBlueprint blueprint)
         {
             selectionHandler.HandleSelected(blueprint);
-            selectionBlueprints.ChangeChildDepth(blueprint, 1);
+            SelectionBlueprints.ChangeChildDepth(blueprint, 1);
             beatmap.SelectedHitObjects.Add(blueprint.HitObject);
         }
 
         private void onBlueprintDeselected(SelectionBlueprint blueprint)
         {
             selectionHandler.HandleDeselected(blueprint);
-            selectionBlueprints.ChangeChildDepth(blueprint, 0);
+            SelectionBlueprints.ChangeChildDepth(blueprint, 0);
             beatmap.SelectedHitObjects.Remove(blueprint.HitObject);
         }
 

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

@@ -63,6 +63,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
         private void refreshTool()
         {
             placementBlueprintContainer.Clear();
+
+            currentPlacement?.EndPlacement(false);
             currentPlacement = null;
 
             var blueprint = CurrentTool?.CreatePlacementBlueprint();

osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs

@@ -3,6 +3,7 @@
 
 using System;
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Primitives;
@@ -21,8 +22,15 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
         [Resolved(CanBeNull = true)]
         private Timeline timeline { get; set; }
 
+        [Resolved]
+        private EditorBeatmap beatmap { get; set; }
+
         private DragEvent lastDragEvent;
 
+        private Bindable<HitObject> placement;
+
+        private SelectionBlueprint placementBlueprint;
+
         public TimelineBlueprintContainer()
         {
             RelativeSizeAxes = Axes.Both;
@@ -43,6 +51,29 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
         {
             base.LoadComplete();
             DragBox.Alpha = 0;
+
+            placement = beatmap.PlacementObject.GetBoundCopy();
+            placement.ValueChanged += placementChanged;
+        }
+
+        private void placementChanged(ValueChangedEvent<HitObject> obj)
+        {
+            if (obj.NewValue == null)
+            {
+                if (placementBlueprint != null)
+                {
+                    SelectionBlueprints.Remove(placementBlueprint);
+                    placementBlueprint = null;
+                }
+            }
+            else
+            {
+                placementBlueprint = CreateBlueprintFor(obj.NewValue);
+
+                placementBlueprint.Colour = Color4.MediumPurple;
+
+                SelectionBlueprints.Add(placementBlueprint);
+            }
         }
 
         protected override Container<SelectionBlueprint> CreateSelectionBlueprintContainer() => new TimelineSelectionBlueprintContainer { RelativeSizeAxes = Axes.Both };

osu.Game/Screens/Edit/Compose/IPlacementHandler.cs

@@ -17,7 +17,8 @@ namespace osu.Game.Screens.Edit.Compose
         /// Notifies that a placement has finished.
         /// </summary>
         /// <param name="hitObject">The <see cref="HitObject"/> that has been placed.</param>
-        void EndPlacement(HitObject hitObject);
+        /// <param name="commit">Whether the object should be committed.</param>
+        void EndPlacement(HitObject hitObject, bool commit);
 
         /// <summary>
         /// Deletes a <see cref="HitObject"/>.

osu.Game/Screens/Edit/EditorBeatmap.cs

@@ -33,7 +33,15 @@ namespace osu.Game.Screens.Edit
         /// </summary>
         public event Action<HitObject> StartTimeChanged;
 
-        public BindableList<HitObject> SelectedHitObjects { get; } = new BindableList<HitObject>();
+        /// <summary>
+        /// All currently selected <see cref="HitObject"/>s.
+        /// </summary>
+        public readonly BindableList<HitObject> SelectedHitObjects = new BindableList<HitObject>();
+
+        /// <summary>
+        /// The current placement. Null if there's no active placement.
+        /// </summary>
+        public readonly Bindable<HitObject> PlacementObject = new Bindable<HitObject>();
 
         public readonly IBeatmap PlayableBeatmap;
 

osu.Game/Tests/Visual/PlacementBlueprintTestScene.cs

@@ -53,9 +53,10 @@ namespace osu.Game.Tests.Visual
         {
         }
 
-        public void EndPlacement(HitObject hitObject)
+        public void EndPlacement(HitObject hitObject, bool commit)
         {
-            AddHitObject(CreateHitObject(hitObject));
+            if (commit)
+                AddHitObject(CreateHitObject(hitObject));
 
             Remove(currentBlueprint);
             Add(currentBlueprint = CreateBlueprint());