mirror of
https://github.com/ppy/osu.git
synced 2024-12-25 03:22:57 +08:00
120 lines
4.6 KiB
C#
120 lines
4.6 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.
|
|
|
|
#nullable disable
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Linq;
|
|
using JetBrains.Annotations;
|
|
using osu.Framework.Input.Events;
|
|
using osu.Game.Input.Bindings;
|
|
using osu.Game.Rulesets.Edit;
|
|
using osu.Game.Rulesets.Objects;
|
|
using osuTK.Input;
|
|
|
|
namespace osu.Game.Screens.Edit.Compose.Components.Timeline
|
|
{
|
|
internal partial class TimelineSelectionHandler : EditorSelectionHandler
|
|
{
|
|
// for now we always allow movement. snapping is provided by the Timeline's "distance" snap implementation
|
|
public override bool HandleMovement(MoveSelectionEvent<HitObject> moveEvent) => true;
|
|
|
|
public override bool OnPressed(KeyBindingPressEvent<GlobalAction> e)
|
|
{
|
|
switch (e.Action)
|
|
{
|
|
case GlobalAction.EditorNudgeLeft:
|
|
nudgeSelection(-1);
|
|
return true;
|
|
|
|
case GlobalAction.EditorNudgeRight:
|
|
nudgeSelection(1);
|
|
return true;
|
|
}
|
|
|
|
return base.OnPressed(e);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Nudge the current selection by the specified multiple of beat divisor lengths,
|
|
/// based on the timing at the first object in the selection.
|
|
/// </summary>
|
|
/// <param name="amount">The direction and count of beat divisor lengths to adjust.</param>
|
|
private void nudgeSelection(int amount)
|
|
{
|
|
var selected = EditorBeatmap.SelectedHitObjects;
|
|
|
|
if (selected.Count == 0)
|
|
return;
|
|
|
|
var timingPoint = EditorBeatmap.ControlPointInfo.TimingPointAt(selected.First().StartTime);
|
|
double adjustment = timingPoint.BeatLength / EditorBeatmap.BeatDivisor * amount;
|
|
|
|
EditorBeatmap.PerformOnSelection(h =>
|
|
{
|
|
h.StartTime += adjustment;
|
|
EditorBeatmap.Update(h);
|
|
});
|
|
}
|
|
|
|
/// <summary>
|
|
/// The "pivot" object, used in range selection mode.
|
|
/// When in range selection, the range to select is determined by the pivot object
|
|
/// (last existing object interacted with prior to holding down Shift)
|
|
/// and by the object clicked last when Shift was pressed.
|
|
/// </summary>
|
|
[CanBeNull]
|
|
private HitObject pivot;
|
|
|
|
internal override bool MouseDownSelectionRequested(SelectionBlueprint<HitObject> blueprint, MouseButtonEvent e)
|
|
{
|
|
if (e.ShiftPressed && e.Button == MouseButton.Left && pivot != null)
|
|
{
|
|
handleRangeSelection(blueprint, e.ControlPressed);
|
|
return true;
|
|
}
|
|
|
|
bool result = base.MouseDownSelectionRequested(blueprint, e);
|
|
// ensure that the object wasn't removed by the base implementation before making it the new pivot.
|
|
if (EditorBeatmap.HitObjects.Contains(blueprint.Item))
|
|
pivot = blueprint.Item;
|
|
return result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handles a request for range selection (triggered when Shift is held down).
|
|
/// </summary>
|
|
/// <param name="blueprint">The blueprint which was clicked in range selection mode.</param>
|
|
/// <param name="cumulative">
|
|
/// Whether the selection should be cumulative.
|
|
/// In cumulative mode, consecutive range selections will shift the pivot (which usually stays fixed for the duration of a range selection)
|
|
/// and will never deselect an object that was previously selected.
|
|
/// </param>
|
|
private void handleRangeSelection(SelectionBlueprint<HitObject> blueprint, bool cumulative)
|
|
{
|
|
var clickedObject = blueprint.Item;
|
|
|
|
Debug.Assert(pivot != null);
|
|
|
|
double rangeStart = Math.Min(clickedObject.StartTime, pivot.StartTime);
|
|
double rangeEnd = Math.Max(clickedObject.GetEndTime(), pivot.GetEndTime());
|
|
|
|
var newSelection = new HashSet<HitObject>(EditorBeatmap.HitObjects.Where(obj => isInRange(obj, rangeStart, rangeEnd)));
|
|
|
|
if (cumulative)
|
|
{
|
|
pivot = clickedObject;
|
|
newSelection.UnionWith(EditorBeatmap.SelectedHitObjects);
|
|
}
|
|
|
|
EditorBeatmap.SelectedHitObjects.Clear();
|
|
EditorBeatmap.SelectedHitObjects.AddRange(newSelection);
|
|
|
|
bool isInRange(HitObject hitObject, double start, double end)
|
|
=> hitObject.StartTime >= start && hitObject.GetEndTime() <= end;
|
|
}
|
|
}
|
|
}
|