mirror of
https://github.com/ppy/osu.git
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159 lines
4.7 KiB
C#
159 lines
4.7 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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#nullable disable
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using System;
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using osu.Framework;
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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.Game.Graphics;
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using osuTK;
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namespace osu.Game.Screens.Menu
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{
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public class ButtonArea : Container, IStateful<Visibility>
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{
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public FlowContainerWithOrigin Flow;
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protected override Container<Drawable> Content => Flow;
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private readonly ButtonAreaBackground buttonAreaBackground;
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private Visibility state;
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public const float BUTTON_AREA_HEIGHT = 100;
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public ButtonArea()
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{
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RelativeSizeAxes = Axes.Both;
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InternalChild = new Container
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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RelativeSizeAxes = Axes.X,
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Size = new Vector2(1, BUTTON_AREA_HEIGHT),
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Alpha = 0,
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AlwaysPresent = true, // Always needs to be present for correct tracking on initial -> toplevel state change
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Children = new Drawable[]
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{
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buttonAreaBackground = new ButtonAreaBackground(),
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Flow = new FlowContainerWithOrigin
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{
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Direction = FillDirection.Horizontal,
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Spacing = new Vector2(-ButtonSystem.WEDGE_WIDTH, 0),
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Anchor = Anchor.Centre,
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AutoSizeAxes = Axes.Both,
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}
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}
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};
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}
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public ButtonSystemState ButtonSystemState
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{
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set
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{
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switch (value)
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{
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case ButtonSystemState.Exit:
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case ButtonSystemState.Initial:
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case ButtonSystemState.EnteringMode:
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Hide();
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break;
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case ButtonSystemState.TopLevel:
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case ButtonSystemState.Play:
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Show();
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break;
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}
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buttonAreaBackground.ButtonSystemState = value;
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}
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}
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public Visibility State
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{
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get => state;
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set
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{
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if (value == state) return;
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state = value;
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InternalChild.FadeTo(state == Visibility.Hidden ? 0 : 1, 300);
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StateChanged?.Invoke(state);
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}
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}
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public override void Hide() => State = Visibility.Hidden;
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public override void Show() => State = Visibility.Visible;
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public event Action<Visibility> StateChanged;
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private class ButtonAreaBackground : Box, IStateful<ButtonAreaBackgroundState>
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{
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private ButtonAreaBackgroundState state;
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public ButtonAreaBackground()
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{
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RelativeSizeAxes = Axes.Both;
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Size = new Vector2(2, 1);
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Colour = OsuColour.Gray(50);
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Anchor = Anchor.Centre;
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Origin = Anchor.Centre;
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}
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public ButtonAreaBackgroundState State
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{
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get => state;
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set
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{
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if (value == state) return;
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state = value;
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switch (state)
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{
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case ButtonAreaBackgroundState.Flat:
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this.ScaleTo(new Vector2(2, 0), 300, Easing.InSine);
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break;
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case ButtonAreaBackgroundState.Normal:
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this.ScaleTo(Vector2.One, 400, Easing.OutQuint);
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break;
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}
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StateChanged?.Invoke(state);
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}
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}
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public ButtonSystemState ButtonSystemState
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{
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set
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{
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switch (value)
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{
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default:
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State = ButtonAreaBackgroundState.Normal;
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break;
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case ButtonSystemState.Initial:
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case ButtonSystemState.Exit:
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case ButtonSystemState.EnteringMode:
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State = ButtonAreaBackgroundState.Flat;
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break;
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}
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}
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}
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public event Action<ButtonAreaBackgroundState> StateChanged;
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}
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public enum ButtonAreaBackgroundState
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{
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Normal,
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Flat
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}
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}
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}
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