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Expose update ternary state method and use better state determination function

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This commit is contained in:
Dean Herbert 2020-09-25 15:27:45 +09:00
parent 50290f3cb4
commit a859fe78ee
1 changed files with 13 additions and 13 deletions
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26
osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs
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@ -366,32 +366,32 @@ namespace osu.Game.Screens.Edit.Compose.Components
};
// bring in updates from selection changes
EditorBeatmap.HitObjectUpdated += _ => updateTernaryStates();
EditorBeatmap.SelectedHitObjects.CollectionChanged += (sender, args) => updateTernaryStates();
EditorBeatmap.HitObjectUpdated += _ => UpdateTernaryStates();
EditorBeatmap.SelectedHitObjects.CollectionChanged += (sender, args) => UpdateTernaryStates();
}
private void updateTernaryStates()
/// <summary>
/// Called when context menu ternary states may need to be recalculated (selection changed or hitobject updated).
/// </summary>
protected virtual void UpdateTernaryStates()
{
selectionNewComboState.Value = getStateFromBlueprints(selectedBlueprints.Select(b => (IHasComboInformation)b.HitObject).Count(h => h.NewCombo));
selectionNewComboState.Value = GetStateFromSelection(SelectedHitObjects.OfType<IHasComboInformation>(), h => h.NewCombo);
foreach (var (sampleName, bindable) in selectionSampleStates)
{
bindable.Value = getStateFromBlueprints(SelectedHitObjects.Count(h => h.Samples.Any(s => s.Name == sampleName)));
bindable.Value = GetStateFromSelection(SelectedHitObjects, h => h.Samples.Any(s => s.Name == sampleName));
}
}
/// <summary>
/// Given a count of "true" blueprints, retrieve the correct ternary display state.
/// Given a selection target and a function of truth, retrieve the correct ternary state for display.
/// </summary>
private TernaryState getStateFromBlueprints(int count)
protected TernaryState GetStateFromSelection<T>(IEnumerable<T> selection, Func<T, bool> func)
{
if (count == 0)
return TernaryState.False;
if (selection.Any(func))
return selection.All(func) ? TernaryState.True : TernaryState.Indeterminate;
if (count < SelectedHitObjects.Count())
return TernaryState.Indeterminate;
return TernaryState.True;
return TernaryState.False;
}
#endregion