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osu-lazer/osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/PathControlPointVisualiser.cs

245 lines
8.7 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using Humanizer;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Cursor;
using osu.Framework.Graphics.UserInterface;
using osu.Framework.Input;
using osu.Framework.Input.Bindings;
using osu.Framework.Input.Events;
using osu.Game.Graphics.UserInterface;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Osu.Objects;
using osu.Game.Screens.Edit;
using osuTK;
using osuTK.Input;
namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
{
public class PathControlPointVisualiser : CompositeDrawable, IKeyBindingHandler<PlatformAction>, IHasContextMenu
{
public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true; // allow context menu to appear outside of the playfield.
internal readonly Container<PathControlPointPiece> Pieces;
internal readonly Container<PathControlPointConnectionPiece> Connections;
private readonly IBindableList<PathControlPoint> controlPoints = new BindableList<PathControlPoint>();
private readonly Slider slider;
private readonly bool allowSelection;
private InputManager inputManager;
public Action<List<PathControlPoint>> RemoveControlPointsRequested;
public PathControlPointVisualiser(Slider slider, bool allowSelection)
{
this.slider = slider;
this.allowSelection = allowSelection;
RelativeSizeAxes = Axes.Both;
InternalChildren = new Drawable[]
{
Connections = new Container<PathControlPointConnectionPiece> { RelativeSizeAxes = Axes.Both },
Pieces = new Container<PathControlPointPiece> { RelativeSizeAxes = Axes.Both }
};
}
protected override void LoadComplete()
{
base.LoadComplete();
inputManager = GetContainingInputManager();
controlPoints.CollectionChanged += onControlPointsChanged;
controlPoints.BindTo(slider.Path.ControlPoints);
}
private void onControlPointsChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
// If inserting in the path (not appending),
// update indices of existing connections after insert location
if (e.NewStartingIndex < Pieces.Count)
{
foreach (var connection in Connections)
{
if (connection.ControlPointIndex >= e.NewStartingIndex)
connection.ControlPointIndex += e.NewItems.Count;
}
}
for (int i = 0; i < e.NewItems.Count; i++)
{
var point = (PathControlPoint)e.NewItems[i];
Pieces.Add(new PathControlPointPiece(slider, point).With(d =>
{
if (allowSelection)
d.RequestSelection = selectPiece;
}));
Connections.Add(new PathControlPointConnectionPiece(slider, e.NewStartingIndex + i));
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (var point in e.OldItems.Cast<PathControlPoint>())
{
Pieces.RemoveAll(p => p.ControlPoint == point);
Connections.RemoveAll(c => c.ControlPoint == point);
}
// If removing before the end of the path,
// update indices of connections after remove location
if (e.OldStartingIndex < Pieces.Count)
{
foreach (var connection in Connections)
{
if (connection.ControlPointIndex >= e.OldStartingIndex)
connection.ControlPointIndex -= e.OldItems.Count;
}
}
break;
}
}
protected override bool OnClick(ClickEvent e)
{
foreach (var piece in Pieces)
{
piece.IsSelected.Value = false;
}
return false;
}
public bool OnPressed(PlatformAction action)
{
switch (action.ActionMethod)
{
case PlatformActionMethod.Delete:
return DeleteSelected();
}
return false;
}
public void OnReleased(PlatformAction action)
{
}
private void selectPiece(PathControlPointPiece piece, MouseButtonEvent e)
{
if (e.Button == MouseButton.Left && inputManager.CurrentState.Keyboard.ControlPressed)
piece.IsSelected.Toggle();
else
{
foreach (var p in Pieces)
p.IsSelected.Value = p == piece;
}
}
[Resolved(CanBeNull = true)]
private IEditorChangeHandler changeHandler { get; set; }
public bool DeleteSelected()
{
List<PathControlPoint> toRemove = Pieces.Where(p => p.IsSelected.Value).Select(p => p.ControlPoint).ToList();
// Ensure that there are any points to be deleted
if (toRemove.Count == 0)
return false;
changeHandler?.BeginChange();
RemoveControlPointsRequested?.Invoke(toRemove);
changeHandler?.EndChange();
// Since pieces are re-used, they will not point to the deleted control points while remaining selected
foreach (var piece in Pieces)
piece.IsSelected.Value = false;
return true;
}
public MenuItem[] ContextMenuItems
{
get
{
if (!Pieces.Any(p => p.IsHovered))
return null;
var selectedPieces = Pieces.Where(p => p.IsSelected.Value).ToList();
int count = selectedPieces.Count;
if (count == 0)
return null;
List<MenuItem> items = new List<MenuItem>();
if (!selectedPieces.Contains(Pieces[0]))
items.Add(createMenuItemForPathType(null));
// todo: hide/disable items which aren't valid for selected points
items.Add(createMenuItemForPathType(PathType.Linear));
items.Add(createMenuItemForPathType(PathType.PerfectCurve));
items.Add(createMenuItemForPathType(PathType.Bezier));
items.Add(createMenuItemForPathType(PathType.Catmull));
return new MenuItem[]
{
new OsuMenuItem($"Delete {"control point".ToQuantity(count, count > 1 ? ShowQuantityAs.Numeric : ShowQuantityAs.None)}", MenuItemType.Destructive, () => DeleteSelected()),
new OsuMenuItem("Curve type")
{
Items = items
}
};
}
}
private MenuItem createMenuItemForPathType(PathType? type)
{
int totalCount = Pieces.Count(p => p.IsSelected.Value);
int countOfState = Pieces.Where(p => p.IsSelected.Value).Count(p => p.ControlPoint.Type.Value == type);
var item = new PathTypeMenuItem(type, () =>
{
foreach (var p in Pieces.Where(p => p.IsSelected.Value))
p.ControlPoint.Type.Value = type;
});
if (countOfState == totalCount)
item.State.Value = TernaryState.True;
else if (countOfState > 0)
item.State.Value = TernaryState.Indeterminate;
else
item.State.Value = TernaryState.False;
return item;
}
private class PathTypeMenuItem : TernaryStateMenuItem
{
public PathTypeMenuItem(PathType? type, Action action)
: base(type == null ? "Inherit" : type.ToString().Humanize(), changeState, MenuItemType.Standard, _ => action?.Invoke())
{
}
private static TernaryState changeState(TernaryState state) => TernaryState.True;
}
}
}