mirror of
https://github.com/ppy/osu.git
synced 2024-12-17 23:02:55 +08:00
957a0686ed
They got too big.
80 lines
2.7 KiB
C#
80 lines
2.7 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 osu.Framework.Allocation;
|
|
using osu.Framework.Graphics;
|
|
using osu.Framework.Graphics.Primitives;
|
|
using osu.Framework.Graphics.Shapes;
|
|
using osu.Framework.Input.Events;
|
|
using osu.Framework.Utils;
|
|
|
|
namespace osu.Game.Screens.Edit.Compose.Components.Timeline
|
|
{
|
|
public class TimelineDragBox : DragBox
|
|
{
|
|
// the following values hold the start and end X positions of the drag box in the timeline's local space,
|
|
// but with zoom unapplied in order to be able to compensate for positional changes
|
|
// while the timeline is being zoomed in/out.
|
|
private float? selectionStart;
|
|
private float selectionEnd;
|
|
|
|
[Resolved]
|
|
private Timeline timeline { get; set; }
|
|
|
|
public TimelineDragBox(Action<RectangleF> performSelect)
|
|
: base(performSelect)
|
|
{
|
|
}
|
|
|
|
protected override Drawable CreateBox() => new Box
|
|
{
|
|
RelativeSizeAxes = Axes.Y,
|
|
Alpha = 0.3f
|
|
};
|
|
|
|
public override bool HandleDrag(MouseButtonEvent e)
|
|
{
|
|
// The dragbox should only be active if the mouseDownPosition.Y is within this drawable's bounds.
|
|
float localY = ToLocalSpace(e.ScreenSpaceMouseDownPosition).Y;
|
|
if (DrawRectangle.Top > localY || DrawRectangle.Bottom < localY)
|
|
return false;
|
|
|
|
selectionStart ??= e.MouseDownPosition.X / timeline.CurrentZoom;
|
|
|
|
// only calculate end when a transition is not in progress to avoid bouncing.
|
|
if (Precision.AlmostEquals(timeline.CurrentZoom, timeline.Zoom))
|
|
selectionEnd = e.MousePosition.X / timeline.CurrentZoom;
|
|
|
|
updateDragBoxPosition();
|
|
return true;
|
|
}
|
|
|
|
private void updateDragBoxPosition()
|
|
{
|
|
if (selectionStart == null)
|
|
return;
|
|
|
|
float rescaledStart = selectionStart.Value * timeline.CurrentZoom;
|
|
float rescaledEnd = selectionEnd * timeline.CurrentZoom;
|
|
|
|
Box.X = Math.Min(rescaledStart, rescaledEnd);
|
|
Box.Width = Math.Abs(rescaledStart - rescaledEnd);
|
|
|
|
var boxScreenRect = Box.ScreenSpaceDrawQuad.AABBFloat;
|
|
|
|
// we don't care about where the hitobjects are vertically. in cases like stacking display, they may be outside the box without this adjustment.
|
|
boxScreenRect.Y -= boxScreenRect.Height;
|
|
boxScreenRect.Height *= 2;
|
|
|
|
PerformSelection?.Invoke(boxScreenRect);
|
|
}
|
|
|
|
public override void Hide()
|
|
{
|
|
base.Hide();
|
|
selectionStart = null;
|
|
}
|
|
}
|
|
}
|