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Code Issues Releases Wiki Activity

Rectify selection keep-alive logic

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This commit is contained in:
Bartłomiej Dach 2023-11-20 21:34:36 +09:00
parent 246aacb216
commit 234ef6f923
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1 changed files with 17 additions and 10 deletions
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27
osu.Game/Screens/Edit/Compose/Components/EditorBlueprintContainer.cs
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@ -51,10 +51,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
Beatmap.HitObjectAdded += AddBlueprintFor;
Beatmap.HitObjectRemoved += RemoveBlueprintFor;
// This makes sure HitObjects will have active Blueprints ready to display
// after clicking on an Editor Timestamp/Link
Beatmap.SelectedHitObjects.CollectionChanged += selectionChanged;
Beatmap.SelectedHitObjects.CollectionChanged += updateSelectionLifetime;
if (Composer != null)
{
@ -149,13 +146,23 @@ namespace osu.Game.Screens.Edit.Compose.Components
SelectedItems.AddRange(Beatmap.HitObjects.Except(SelectedItems).ToArray());
}
private void selectionChanged(object sender, NotifyCollectionChangedEventArgs e)
/// <summary>
/// Ensures that newly-selected hitobjects are kept alive
/// and drops that keep-alive from newly-deselected objects.
/// </summary>
private void updateSelectionLifetime(object sender, NotifyCollectionChangedEventArgs e)
{
if (e == null || e.Action != NotifyCollectionChangedAction.Add || e.NewItems == null)
return;
if (e.NewItems != null)
{
foreach (HitObject newSelection in e.NewItems)
Composer.Playfield.SetKeepAlive(newSelection, true);
}
foreach (HitObject item in e.NewItems)
Composer.Playfield.SetKeepAlive(item, true);
if (e.OldItems != null)
{
foreach (HitObject oldSelection in e.OldItems)
Composer.Playfield.SetKeepAlive(oldSelection, false);
}
}
protected override void OnBlueprintSelected(SelectionBlueprint<HitObject> blueprint)
@ -180,7 +187,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
{
Beatmap.HitObjectAdded -= AddBlueprintFor;
Beatmap.HitObjectRemoved -= RemoveBlueprintFor;
Beatmap.SelectedHitObjects.CollectionChanged -= selectionChanged;
Beatmap.SelectedHitObjects.CollectionChanged -= updateSelectionLifetime;
}
usageEventBuffer?.Dispose();