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564 lines
21 KiB
C#
564 lines
21 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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#nullable disable
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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Diagnostics;
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using System.Linq;
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using Humanizer;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Cursor;
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using osu.Framework.Graphics.Primitives;
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using osu.Framework.Graphics.UserInterface;
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using osu.Framework.Input;
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using osu.Framework.Input.Bindings;
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using osu.Framework.Input.Events;
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using osu.Framework.Utils;
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using osu.Game.Graphics.UserInterface;
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using osu.Game.Rulesets.Edit;
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using osu.Game.Rulesets.Objects;
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using osu.Game.Rulesets.Objects.Types;
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using osu.Game.Rulesets.Osu.Objects;
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using osu.Game.Screens.Edit;
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using osuTK;
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using osuTK.Input;
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namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
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{
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public partial class PathControlPointVisualiser<T> : CompositeDrawable, IKeyBindingHandler<PlatformAction>, IHasContextMenu
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where T : OsuHitObject, IHasPath
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{
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true; // allow context menu to appear outside the playfield.
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internal readonly Container<PathControlPointPiece<T>> Pieces;
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private readonly IBindableList<PathControlPoint> controlPoints = new BindableList<PathControlPoint>();
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private readonly T hitObject;
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private readonly bool allowSelection;
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private InputManager inputManager;
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public Action<List<PathControlPoint>> RemoveControlPointsRequested;
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public Action<List<PathControlPoint>> SplitControlPointsRequested;
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[Resolved(CanBeNull = true)]
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private IPositionSnapProvider positionSnapProvider { get; set; }
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[Resolved(CanBeNull = true)]
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private IDistanceSnapProvider distanceSnapProvider { get; set; }
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public PathControlPointVisualiser(T hitObject, bool allowSelection)
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{
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this.hitObject = hitObject;
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this.allowSelection = allowSelection;
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RelativeSizeAxes = Axes.Both;
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InternalChildren = new Drawable[]
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{
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new PathControlPointConnection<T>(hitObject),
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Pieces = new Container<PathControlPointPiece<T>> { RelativeSizeAxes = Axes.Both }
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};
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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inputManager = GetContainingInputManager();
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controlPoints.CollectionChanged += onControlPointsChanged;
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controlPoints.BindTo(hitObject.Path.ControlPoints);
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}
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// Generally all the control points are within the visible area all the time.
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public override bool UpdateSubTreeMasking() => true;
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/// <summary>
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/// Handles correction of invalid path types.
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/// </summary>
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public void EnsureValidPathTypes()
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{
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List<PathControlPoint> pointsInCurrentSegment = new List<PathControlPoint>();
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foreach (var controlPoint in controlPoints)
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{
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if (controlPoint.Type != null)
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{
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pointsInCurrentSegment.Add(controlPoint);
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ensureValidPathType(pointsInCurrentSegment);
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pointsInCurrentSegment.Clear();
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}
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pointsInCurrentSegment.Add(controlPoint);
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}
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ensureValidPathType(pointsInCurrentSegment);
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}
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private void ensureValidPathType(IReadOnlyList<PathControlPoint> segment)
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{
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if (segment.Count == 0)
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return;
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var first = segment[0];
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if (first.Type != PathType.PERFECT_CURVE)
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return;
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if (segment.Count > 3)
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first.Type = PathType.BEZIER;
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if (segment.Count != 3)
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return;
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ReadOnlySpan<Vector2> points = segment.Select(p => p.Position).ToArray();
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RectangleF boundingBox = PathApproximator.CircularArcBoundingBox(points);
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if (boundingBox.Width >= 640 || boundingBox.Height >= 480)
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first.Type = PathType.BEZIER;
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}
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/// <summary>
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/// Selects the <see cref="PathControlPointPiece{T}"/> corresponding to the given <paramref name="pathControlPoint"/>,
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/// and deselects all other <see cref="PathControlPointPiece{T}"/>s.
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/// </summary>
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public void SetSelectionTo(PathControlPoint pathControlPoint)
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{
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foreach (var p in Pieces)
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p.IsSelected.Value = p.ControlPoint == pathControlPoint;
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}
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/// <summary>
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/// Delete all visually selected <see cref="PathControlPoint"/>s.
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/// </summary>
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/// <returns></returns>
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public bool DeleteSelected()
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{
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List<PathControlPoint> toRemove = Pieces.Where(p => p.IsSelected.Value).Select(p => p.ControlPoint).ToList();
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// Ensure that there are any points to be deleted
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if (toRemove.Count == 0)
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return false;
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changeHandler?.BeginChange();
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RemoveControlPointsRequested?.Invoke(toRemove);
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changeHandler?.EndChange();
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// Since pieces are re-used, they will not point to the deleted control points while remaining selected
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foreach (var piece in Pieces)
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piece.IsSelected.Value = false;
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return true;
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}
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private bool splitSelected()
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{
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List<PathControlPoint> controlPointsToSplitAt = Pieces.Where(p => p.IsSelected.Value && isSplittable(p)).Select(p => p.ControlPoint).ToList();
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// Ensure that there are any points to be split
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if (controlPointsToSplitAt.Count == 0)
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return false;
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changeHandler?.BeginChange();
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SplitControlPointsRequested?.Invoke(controlPointsToSplitAt);
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changeHandler?.EndChange();
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// Since pieces are re-used, they will not point to the deleted control points while remaining selected
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foreach (var piece in Pieces)
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piece.IsSelected.Value = false;
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return true;
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}
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private bool isSplittable(PathControlPointPiece<T> p) =>
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// A hit object can only be split on control points which connect two different path segments.
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p.ControlPoint.Type.HasValue && p != Pieces.FirstOrDefault() && p != Pieces.LastOrDefault();
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private void onControlPointsChanged(object sender, NotifyCollectionChangedEventArgs e)
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{
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switch (e.Action)
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{
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case NotifyCollectionChangedAction.Add:
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Debug.Assert(e.NewItems != null);
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for (int i = 0; i < e.NewItems.Count; i++)
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{
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var point = (PathControlPoint)e.NewItems[i];
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Pieces.Add(new PathControlPointPiece<T>(hitObject, point).With(d =>
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{
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if (allowSelection)
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d.RequestSelection = selectionRequested;
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d.ControlPoint.Changed += controlPointChanged;
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d.DragStarted = DragStarted;
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d.DragInProgress = DragInProgress;
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d.DragEnded = DragEnded;
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}));
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}
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break;
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case NotifyCollectionChangedAction.Remove:
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Debug.Assert(e.OldItems != null);
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foreach (var point in e.OldItems.Cast<PathControlPoint>())
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{
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point.Changed -= controlPointChanged;
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foreach (var piece in Pieces.Where(p => p.ControlPoint == point).ToArray())
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piece.RemoveAndDisposeImmediately();
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}
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break;
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}
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}
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private void controlPointChanged() => updateCurveMenuItems();
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protected override bool OnClick(ClickEvent e)
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{
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if (Pieces.Any(piece => piece.IsHovered))
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return false;
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foreach (var piece in Pieces)
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{
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piece.IsSelected.Value = false;
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}
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return false;
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}
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public bool OnPressed(KeyBindingPressEvent<PlatformAction> e)
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{
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switch (e.Action)
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{
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case PlatformAction.Delete:
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return DeleteSelected();
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}
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return false;
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}
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public void OnReleased(KeyBindingReleaseEvent<PlatformAction> e)
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{
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}
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// ReSharper disable once StaticMemberInGenericType
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private static readonly PathType?[] path_types =
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[
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PathType.LINEAR,
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PathType.BEZIER,
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PathType.PERFECT_CURVE,
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PathType.BSpline(4),
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null,
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];
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protected override bool OnKeyDown(KeyDownEvent e)
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{
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if (e.Repeat)
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return false;
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switch (e.Key)
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{
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case Key.Tab:
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{
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var selectedPieces = Pieces.Where(p => p.IsSelected.Value).ToArray();
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if (selectedPieces.Length != 1)
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return false;
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var selectedPiece = selectedPieces.Single();
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var selectedPoint = selectedPiece.ControlPoint;
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var validTypes = path_types;
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if (selectedPoint == controlPoints[0])
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validTypes = validTypes.Where(t => t != null).ToArray();
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int currentTypeIndex = Array.IndexOf(validTypes, selectedPoint.Type);
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if (currentTypeIndex < 0 && e.ShiftPressed)
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currentTypeIndex = 0;
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changeHandler?.BeginChange();
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do
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{
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currentTypeIndex = (validTypes.Length + currentTypeIndex + (e.ShiftPressed ? -1 : 1)) % validTypes.Length;
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updatePathTypeOfSelectedPieces(validTypes[currentTypeIndex]);
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} while (selectedPoint.Type != validTypes[currentTypeIndex]);
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changeHandler?.EndChange();
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return true;
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}
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case Key.Number1:
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case Key.Number2:
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case Key.Number3:
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case Key.Number4:
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case Key.Number5:
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{
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if (!e.AltPressed)
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return false;
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var type = path_types[e.Key - Key.Number1];
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if (Pieces[0].IsSelected.Value && type == null)
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return false;
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updatePathTypeOfSelectedPieces(type);
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return true;
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}
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default:
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return false;
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}
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}
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protected override void Dispose(bool isDisposing)
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{
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base.Dispose(isDisposing);
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foreach (var p in Pieces)
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p.ControlPoint.Changed -= controlPointChanged;
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}
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private void selectionRequested(PathControlPointPiece<T> piece, MouseButtonEvent e)
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{
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if (e.Button == MouseButton.Left && inputManager.CurrentState.Keyboard.ControlPressed)
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piece.IsSelected.Toggle();
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else
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SetSelectionTo(piece.ControlPoint);
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}
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/// <summary>
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/// Attempts to set all selected control point pieces to the given path type.
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/// If that fails, try to change the path such that it instead succeeds
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/// in a UX-friendly way.
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/// </summary>
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/// <param name="type">The path type we want to assign to the given control point piece.</param>
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private void updatePathTypeOfSelectedPieces(PathType? type)
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{
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changeHandler?.BeginChange();
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foreach (var p in Pieces.Where(p => p.IsSelected.Value))
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{
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var pointsInSegment = hitObject.Path.PointsInSegment(p.ControlPoint);
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int indexInSegment = pointsInSegment.IndexOf(p.ControlPoint);
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if (type?.Type == SplineType.PerfectCurve)
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{
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// Can't always create a circular arc out of 4 or more points,
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// so we split the segment into one 3-point circular arc segment
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// and one segment of the previous type.
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int thirdPointIndex = indexInSegment + 2;
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if (pointsInSegment.Count > thirdPointIndex + 1)
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pointsInSegment[thirdPointIndex].Type = pointsInSegment[0].Type;
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}
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hitObject.Path.ExpectedDistance.Value = null;
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p.ControlPoint.Type = type;
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}
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EnsureValidPathTypes();
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changeHandler?.EndChange();
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}
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[Resolved(CanBeNull = true)]
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private IEditorChangeHandler changeHandler { get; set; }
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#region Drag handling
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private Vector2[] dragStartPositions;
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private PathType?[] dragPathTypes;
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private int draggedControlPointIndex;
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private HashSet<PathControlPoint> selectedControlPoints;
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private List<MenuItem> curveTypeItems;
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public void DragStarted(PathControlPoint controlPoint)
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{
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dragStartPositions = hitObject.Path.ControlPoints.Select(point => point.Position).ToArray();
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dragPathTypes = hitObject.Path.ControlPoints.Select(point => point.Type).ToArray();
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draggedControlPointIndex = hitObject.Path.ControlPoints.IndexOf(controlPoint);
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selectedControlPoints = new HashSet<PathControlPoint>(Pieces.Where(piece => piece.IsSelected.Value).Select(piece => piece.ControlPoint));
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Debug.Assert(draggedControlPointIndex >= 0);
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changeHandler?.BeginChange();
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}
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public void DragInProgress(DragEvent e)
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{
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Vector2[] oldControlPoints = hitObject.Path.ControlPoints.Select(cp => cp.Position).ToArray();
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var oldPosition = hitObject.Position;
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double oldStartTime = hitObject.StartTime;
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if (selectedControlPoints.Contains(hitObject.Path.ControlPoints[0]))
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{
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// Special handling for selections containing head control point - the position of the hit object changes which means the snapped position and time have to be taken into account
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Vector2 newHeadPosition = Parent!.ToScreenSpace(e.MousePosition + (dragStartPositions[0] - dragStartPositions[draggedControlPointIndex]));
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var result = positionSnapProvider?.FindSnappedPositionAndTime(newHeadPosition);
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Vector2 movementDelta = Parent!.ToLocalSpace(result?.ScreenSpacePosition ?? newHeadPosition) - hitObject.Position;
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hitObject.Position += movementDelta;
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hitObject.StartTime = result?.Time ?? hitObject.StartTime;
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for (int i = 1; i < hitObject.Path.ControlPoints.Count; i++)
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{
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var controlPoint = hitObject.Path.ControlPoints[i];
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// Since control points are relative to the position of the hit object, all points that are _not_ selected
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// need to be offset _back_ by the delta corresponding to the movement of the head point.
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// All other selected control points (if any) will move together with the head point
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// (and so they will not move at all, relative to each other).
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if (!selectedControlPoints.Contains(controlPoint))
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controlPoint.Position -= movementDelta;
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}
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}
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else
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{
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var result = positionSnapProvider?.FindSnappedPositionAndTime(Parent!.ToScreenSpace(e.MousePosition), SnapType.GlobalGrids);
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Vector2 movementDelta = Parent!.ToLocalSpace(result?.ScreenSpacePosition ?? Parent!.ToScreenSpace(e.MousePosition)) - dragStartPositions[draggedControlPointIndex] - hitObject.Position;
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for (int i = 0; i < controlPoints.Count; ++i)
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{
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var controlPoint = controlPoints[i];
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if (selectedControlPoints.Contains(controlPoint))
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controlPoint.Position = dragStartPositions[i] + movementDelta;
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}
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}
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// Snap the path to the current beat divisor before checking length validity.
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hitObject.SnapTo(distanceSnapProvider);
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if (!hitObject.Path.HasValidLength)
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{
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for (int i = 0; i < hitObject.Path.ControlPoints.Count; i++)
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hitObject.Path.ControlPoints[i].Position = oldControlPoints[i];
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hitObject.Position = oldPosition;
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hitObject.StartTime = oldStartTime;
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// Snap the path length again to undo the invalid length.
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hitObject.SnapTo(distanceSnapProvider);
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return;
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}
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// Maintain the path types in case they got defaulted to bezier at some point during the drag.
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for (int i = 0; i < hitObject.Path.ControlPoints.Count; i++)
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hitObject.Path.ControlPoints[i].Type = dragPathTypes[i];
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EnsureValidPathTypes();
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}
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public void DragEnded() => changeHandler?.EndChange();
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#endregion
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public MenuItem[] ContextMenuItems
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{
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get
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{
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if (!Pieces.Any(p => p.IsHovered))
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return null;
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var selectedPieces = Pieces.Where(p => p.IsSelected.Value).ToList();
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int count = selectedPieces.Count;
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if (count == 0)
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return null;
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var splittablePieces = selectedPieces.Where(isSplittable).ToList();
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int splittableCount = splittablePieces.Count;
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curveTypeItems = new List<MenuItem>();
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// todo: hide/disable items which aren't valid for selected points
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foreach (PathType? type in path_types)
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{
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// special inherit case
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if (type == null)
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{
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if (selectedPieces.Contains(Pieces[0]))
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continue;
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curveTypeItems.Add(new OsuMenuItemSpacer());
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}
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curveTypeItems.Add(createMenuItemForPathType(type));
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}
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if (selectedPieces.Any(piece => piece.ControlPoint.Type?.Type == SplineType.Catmull))
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{
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curveTypeItems.Add(new OsuMenuItemSpacer());
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curveTypeItems.Add(createMenuItemForPathType(PathType.CATMULL));
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}
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var menuItems = new List<MenuItem>
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{
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new OsuMenuItem("Curve type")
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{
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Items = curveTypeItems
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}
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};
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if (splittableCount > 0)
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{
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menuItems.Add(new OsuMenuItem($"Split {"control point".ToQuantity(splittableCount, splittableCount > 1 ? ShowQuantityAs.Numeric : ShowQuantityAs.None)}",
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MenuItemType.Destructive,
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() => splitSelected()));
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}
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menuItems.Add(
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new OsuMenuItem($"Delete {"control point".ToQuantity(count, count > 1 ? ShowQuantityAs.Numeric : ShowQuantityAs.None)}",
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MenuItemType.Destructive,
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() => DeleteSelected())
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);
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updateCurveMenuItems();
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return menuItems.ToArray();
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CurveTypeMenuItem createMenuItemForPathType(PathType? type) => new CurveTypeMenuItem(type, _ => updatePathTypeOfSelectedPieces(type));
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}
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}
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private void updateCurveMenuItems()
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{
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foreach (var item in curveTypeItems.OfType<CurveTypeMenuItem>())
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{
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int totalCount = Pieces.Count(p => p.IsSelected.Value);
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int countOfState = Pieces.Where(p => p.IsSelected.Value).Count(p => p.ControlPoint.Type == item.PathType);
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if (countOfState == totalCount)
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item.State.Value = TernaryState.True;
|
|
else if (countOfState > 0)
|
|
item.State.Value = TernaryState.Indeterminate;
|
|
else
|
|
item.State.Value = TernaryState.False;
|
|
}
|
|
}
|
|
|
|
private class CurveTypeMenuItem : TernaryStateRadioMenuItem
|
|
{
|
|
public readonly PathType? PathType;
|
|
|
|
public CurveTypeMenuItem(PathType? pathType, Action<TernaryState> action)
|
|
: base(pathType?.Description ?? "Inherit", MenuItemType.Standard, action)
|
|
{
|
|
PathType = pathType;
|
|
}
|
|
}
|
|
}
|
|
}
|