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106 lines
2.7 KiB
C#
106 lines
2.7 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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using System;
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using osu.Framework.Allocation;
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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.Shapes;
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using osu.Framework.Input.Events;
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using osu.Game.Graphics;
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using osuTK;
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namespace osu.Game.Screens.Edit.Compose.Components
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{
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public class SelectionBoxDragHandle : Container
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{
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public Action OperationStarted;
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public Action OperationEnded;
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public Action<DragEvent> HandleDrag { get; set; }
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private Circle circle;
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[Resolved]
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private OsuColour colours { get; set; }
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[BackgroundDependencyLoader]
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private void load()
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{
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Size = new Vector2(10);
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Origin = Anchor.Centre;
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InternalChildren = new Drawable[]
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{
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circle = new Circle
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{
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RelativeSizeAxes = Axes.Both,
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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},
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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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UpdateHoverState();
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}
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protected override bool OnHover(HoverEvent e)
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{
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UpdateHoverState();
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return base.OnHover(e);
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}
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protected override void OnHoverLost(HoverLostEvent e)
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{
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base.OnHoverLost(e);
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UpdateHoverState();
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}
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protected bool HandlingMouse;
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protected override bool OnMouseDown(MouseDownEvent e)
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{
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HandlingMouse = true;
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UpdateHoverState();
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return true;
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}
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protected override bool OnDragStart(DragStartEvent e)
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{
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OperationStarted?.Invoke();
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return true;
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}
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protected override void OnDrag(DragEvent e)
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{
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HandleDrag?.Invoke(e);
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base.OnDrag(e);
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}
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protected override void OnDragEnd(DragEndEvent e)
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{
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HandlingMouse = false;
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OperationEnded?.Invoke();
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UpdateHoverState();
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base.OnDragEnd(e);
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}
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protected override void OnMouseUp(MouseUpEvent e)
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{
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HandlingMouse = false;
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UpdateHoverState();
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base.OnMouseUp(e);
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}
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protected virtual void UpdateHoverState()
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{
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circle.Colour = HandlingMouse ? colours.GrayF : (IsHovered ? colours.Red : colours.YellowDark);
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this.ScaleTo(HandlingMouse || IsHovered ? 1.5f : 1, 100, Easing.OutQuint);
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}
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}
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}
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