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6d4f94756e
The general idea here is that we need the masks to handle mouse down events, as they need to handle the drag (mousedown -> drag immediately). I've rewritten the editor selections to use events, as there are some 3 different components that handle/trigger selections in different ways. 1. All selections/deselections now propagate through `HitObjectMask.Select()`/`HitObjectMask.Deselect()`. 2. Components that react to changes in the selection bind to the masks' `Selected`/`Deselected` events, and track them/change their states locally. 3. Masks provide a `SingleSelectionRequested` event which is invoked on the mouse-down event. Various components bind to this event to perform state changes locally in this scenario. 4. `DragBox` now handles all drag input locally. It triggers `Select`/`Deselect` on the masks it needs to. 5. `SelectionBox` handles the display of itself locally. 6. `SelectionBox` handles movement of groups of masks locally. 7. `HitObjectMasks` handles movement of itself locally.
106 lines
3.5 KiB
C#
106 lines
3.5 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Primitives;
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using osu.Framework.Input;
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using osu.Game.Rulesets.Edit.Types;
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using osu.Game.Rulesets.Objects.Drawables;
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using OpenTK;
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namespace osu.Game.Rulesets.Edit
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{
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/// <summary>
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/// A mask placed above a <see cref="DrawableHitObject"/> adding editing functionality.
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/// </summary>
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public class HitObjectMask : VisibilityContainer
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{
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public event Action<HitObjectMask> Selected;
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public event Action<HitObjectMask> Deselected;
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public event Action<HitObjectMask> SingleSelectionRequested;
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public readonly DrawableHitObject HitObject;
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protected override bool ShouldBeAlive => HitObject.IsAlive || State == Visibility.Visible;
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public override bool HandleMouseInput => true;
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public HitObjectMask(DrawableHitObject hitObject)
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{
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HitObject = hitObject;
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AlwaysPresent = true;
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State = Visibility.Hidden;
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}
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/// <summary>
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/// Selects this <see cref="HitObjectMask"/>, causing it to become visible.
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/// </summary>
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/// <returns>True if the <see cref="HitObjectMask"/> was selected. False if the <see cref="HitObjectMask"/> was already selected.</returns>
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public bool Select()
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{
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if (State == Visibility.Visible)
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return false;
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Show();
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Selected?.Invoke(this);
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return true;
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}
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/// <summary>
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/// Deselects this <see cref="HitObjectMask"/>, causing it to become invisible.
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/// </summary>
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/// <returns>True if the <see cref="HitObjectMask"/> was deselected. False if the <see cref="HitObjectMask"/> was already deselected.</returns>
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public bool Deselect()
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{
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if (State == Visibility.Hidden)
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return false;
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Hide();
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Deselected?.Invoke(this);
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return true;
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}
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protected override bool OnMouseDown(InputState state, MouseDownEventArgs args)
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{
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if (HitObject.IsPresent)
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{
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SingleSelectionRequested?.Invoke(this);
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Select();
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return true;
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}
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return false;
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}
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protected override bool OnDragStart(InputState state) => true;
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protected override bool OnDrag(InputState state)
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{
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// Todo: Various forms of snapping
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switch (HitObject.HitObject)
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{
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case IHasEditablePosition editablePosition:
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editablePosition.OffsetPosition(state.Mouse.Delta);
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break;
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}
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return true;
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}
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protected override bool OnDragEnd(InputState state) => true;
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protected override void PopIn() => Alpha = 1;
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protected override void PopOut() => Alpha = 0;
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/// <summary>
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/// The screen-space point that causes this <see cref="HitObjectMask"/> to be selected.
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/// </summary>
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public virtual Vector2 SelectionPoint => ScreenSpaceDrawQuad.Centre;
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/// <summary>
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/// The screen-space quad that outlines this <see cref="HitObjectMask"/> for selections.
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/// </summary>
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public virtual Quad SelectionQuad => ScreenSpaceDrawQuad;
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}
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}
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