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119 lines
3.8 KiB
C#
119 lines
3.8 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 osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions.Color4Extensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Colour;
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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.Graphics.UserInterface;
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using osu.Framework.Input.Events;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Graphics.UserInterfaceV2
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{
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public class SwitchButton : Checkbox
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{
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private const float border_thickness = 4.5f;
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private const float padding = 1.25f;
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private readonly Box fill;
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private readonly Container switchContainer;
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private readonly Drawable switchCircle;
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private readonly CircularBorderContainer circularContainer;
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private Color4 enabledColour;
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private Color4 disabledColour;
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public SwitchButton()
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{
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Size = new Vector2(45, 20);
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InternalChild = circularContainer = new CircularBorderContainer
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{
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RelativeSizeAxes = Axes.Both,
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BorderColour = Color4.White,
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BorderThickness = border_thickness,
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Masking = true,
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Children = new Drawable[]
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{
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fill = new Box
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{
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RelativeSizeAxes = Axes.Both,
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AlwaysPresent = true,
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Alpha = 0
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},
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new Container
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{
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RelativeSizeAxes = Axes.Both,
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Padding = new MarginPadding(border_thickness + padding),
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Child = switchContainer = new Container
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{
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RelativeSizeAxes = Axes.Both,
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Child = switchCircle = new CircularContainer
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{
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RelativeSizeAxes = Axes.Both,
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FillMode = FillMode.Fit,
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Masking = true,
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Child = new Box { RelativeSizeAxes = Axes.Both }
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}
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}
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}
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}
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};
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}
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[BackgroundDependencyLoader]
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private void load(OsuColour colours)
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{
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enabledColour = colours.BlueDark;
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disabledColour = colours.Gray3;
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switchContainer.Colour = enabledColour;
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fill.Colour = disabledColour;
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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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Current.BindValueChanged(updateState, true);
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FinishTransforms(true);
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}
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private void updateState(ValueChangedEvent<bool> state)
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{
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switchCircle.MoveToX(state.NewValue ? switchContainer.DrawWidth - switchCircle.DrawWidth : 0, 200, Easing.OutQuint);
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fill.FadeTo(state.NewValue ? 1 : 0, 250, Easing.OutQuint);
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updateBorder();
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}
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protected override bool OnHover(HoverEvent e)
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{
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updateBorder();
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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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updateBorder();
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base.OnHoverLost(e);
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}
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private void updateBorder()
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{
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circularContainer.TransformBorderTo((Current.Value ? enabledColour : disabledColour).Lighten(IsHovered ? 0.3f : 0));
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}
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private class CircularBorderContainer : CircularContainer
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{
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public void TransformBorderTo(SRGBColour colour)
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=> this.TransformTo(nameof(BorderColour), colour, 250, Easing.OutQuint);
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}
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}
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}
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