mirror of https://github.com/ppy/osu
107 lines
3.5 KiB
C#
107 lines
3.5 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.Bindables;
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using osu.Framework.Extensions.EnumExtensions;
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using osu.Framework.Extensions.LocalisationExtensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Cursor;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Input.Events;
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using osu.Framework.Localisation;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Screens.Edit.Compose.Components
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{
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public class SelectionBoxRotationHandle : SelectionBoxDragHandle, IHasTooltip
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{
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public Action<float> HandleRotate { get; set; }
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public LocalisableString TooltipText { get; private set; }
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private SpriteIcon icon;
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private readonly Bindable<float?> cumulativeRotation = new Bindable<float?>();
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[Resolved]
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private SelectionBox selectionBox { 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(15f);
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AddInternal(icon = new SpriteIcon
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{
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RelativeSizeAxes = Axes.Both,
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Size = new Vector2(0.5f),
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Icon = FontAwesome.Solid.Redo,
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Scale = new Vector2
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{
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X = Anchor.HasFlagFast(Anchor.x0) ? 1f : -1f,
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Y = Anchor.HasFlagFast(Anchor.y0) ? 1f : -1f
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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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cumulativeRotation.BindValueChanged(_ => updateTooltipText(), true);
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}
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protected override void UpdateHoverState()
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{
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base.UpdateHoverState();
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icon.FadeColour(!IsHeld && IsHovered ? Color4.White : Color4.Black, TRANSFORM_DURATION, Easing.OutQuint);
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}
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protected override bool OnDragStart(DragStartEvent e)
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{
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bool handle = base.OnDragStart(e);
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if (handle)
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cumulativeRotation.Value = 0;
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return handle;
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}
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protected override void OnDrag(DragEvent e)
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{
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base.OnDrag(e);
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float instantaneousAngle = convertDragEventToAngleOfRotation(e);
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cumulativeRotation.Value += instantaneousAngle;
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if (cumulativeRotation.Value < -180)
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cumulativeRotation.Value += 360;
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else if (cumulativeRotation.Value > 180)
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cumulativeRotation.Value -= 360;
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HandleRotate?.Invoke(instantaneousAngle);
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}
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protected override void OnDragEnd(DragEndEvent e)
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{
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base.OnDragEnd(e);
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cumulativeRotation.Value = null;
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}
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private float convertDragEventToAngleOfRotation(DragEvent e)
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{
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// Adjust coordinate system to the center of SelectionBox
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float startAngle = MathF.Atan2(e.LastMousePosition.Y - selectionBox.DrawHeight / 2, e.LastMousePosition.X - selectionBox.DrawWidth / 2);
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float endAngle = MathF.Atan2(e.MousePosition.Y - selectionBox.DrawHeight / 2, e.MousePosition.X - selectionBox.DrawWidth / 2);
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return (endAngle - startAngle) * 180 / MathF.PI;
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}
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private void updateTooltipText()
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{
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TooltipText = cumulativeRotation.Value?.ToLocalisableString("0.0°") ?? default;
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}
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}
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}
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