mirror of
https://github.com/ppy/osu
synced 2024-12-25 00:02:48 +00:00
315 lines
9.6 KiB
C#
315 lines
9.6 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.Graphics.Containers;
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using osu.Framework.Graphics;
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using osu.Framework.Bindables;
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using osu.Framework.Allocation;
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using osu.Framework.Graphics.Shapes;
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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.Extensions.Color4Extensions;
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using System;
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using osuTK;
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using osu.Game.Graphics.Containers;
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using System.Collections.Generic;
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namespace osu.Game.Graphics.UserInterface
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{
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public class PageSelector : CompositeDrawable
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{
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public readonly BindableInt CurrentPage = new BindableInt(1);
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private readonly int maxPages;
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private readonly FillFlowContainer pillsFlow;
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private readonly Button previousPageButton;
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private readonly Button nextPageButton;
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public PageSelector(int maxPages)
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{
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this.maxPages = maxPages;
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AutoSizeAxes = Axes.Both;
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InternalChild = new FillFlowContainer
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{
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AutoSizeAxes = Axes.Both,
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Direction = FillDirection.Horizontal,
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Children = new Drawable[]
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{
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previousPageButton = new Button(false, "prev")
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{
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Action = () => CurrentPage.Value -= 1,
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},
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pillsFlow = new FillFlowContainer
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{
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AutoSizeAxes = Axes.Both,
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Direction = FillDirection.Horizontal,
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},
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nextPageButton = new Button(true, "next")
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{
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Action = () => CurrentPage.Value += 1
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}
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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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CurrentPage.BindValueChanged(page => redraw(page.NewValue), true);
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}
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private void redraw(int newPage)
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{
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previousPageButton.Enabled.Value = newPage != 1;
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nextPageButton.Enabled.Value = newPage != maxPages;
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pillsFlow.Clear();
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if (newPage > 3)
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addDrawablePage(1);
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if (newPage > 4)
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addPlaceholder();
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for (int i = Math.Max(newPage - 2, 1); i <= Math.Min(newPage + 2, maxPages); i++)
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{
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if (i == newPage)
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addCurrentPagePill();
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else
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addDrawablePage(i);
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}
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if (newPage + 2 < maxPages - 1)
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addPlaceholder();
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if (newPage + 2 < maxPages)
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addDrawablePage(maxPages);
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}
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private void addDrawablePage(int page)
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{
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pillsFlow.Add(new Page(page.ToString(), () => CurrentPage.Value = page));
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}
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private void addPlaceholder()
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{
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pillsFlow.Add(new Placeholder());
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}
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private void addCurrentPagePill()
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{
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pillsFlow.Add(new SelectedPage(CurrentPage.Value.ToString()));
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}
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private abstract class DrawablePage : CompositeDrawable
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{
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private const int height = 20;
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private const int margin = 8;
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protected readonly string Text;
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protected readonly Drawable Content;
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protected DrawablePage(string text)
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{
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Text = text;
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AutoSizeAxes = Axes.X;
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Height = height;
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var background = CreateBackground();
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if (background != null)
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AddInternal(background);
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Content = CreateContent();
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Content.Margin = new MarginPadding { Horizontal = margin };
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AddInternal(Content);
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}
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protected abstract Drawable CreateContent();
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protected virtual Drawable CreateBackground() => null;
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}
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private abstract class ActivatedDrawablePage : DrawablePage
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{
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protected readonly Action Action;
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public ActivatedDrawablePage(string text, Action action = null)
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: base(text)
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{
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Action = action;
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}
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protected override bool OnClick(ClickEvent e)
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{
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Action?.Invoke();
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return base.OnClick(e);
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}
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}
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private class Page : ActivatedDrawablePage
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{
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private OsuColour colours;
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public Page(string text, Action action)
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: base(text, action)
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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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this.colours = colours;
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Content.Colour = colours.Seafoam;
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}
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protected override bool OnHover(HoverEvent e)
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{
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Content.Colour = colours.Seafoam.Lighten(30f);
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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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Content.Colour = colours.Seafoam;
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base.OnHoverLost(e);
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}
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protected override Drawable CreateContent() => new SpriteText
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Text = Text
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};
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}
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private class SelectedPage : DrawablePage
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{
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private Box background;
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public SelectedPage(string text)
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: base(text)
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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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Content.Colour = colours.GreySeafoam;
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background.Colour = colours.Seafoam;
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}
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protected override Drawable CreateContent() => new SpriteText
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Text = Text
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};
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protected override Drawable CreateBackground() => new CircularContainer
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{
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RelativeSizeAxes = Axes.Both,
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Masking = true,
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Child = background = new Box
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{
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RelativeSizeAxes = Axes.Both,
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}
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};
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}
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private class Placeholder : DrawablePage
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{
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public Placeholder()
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: base("...")
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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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Content.Colour = colours.Seafoam;
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}
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protected override Drawable CreateContent() => new SpriteText
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Text = Text
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};
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}
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private class Button : OsuHoverContainer
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{
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private const int height = 20;
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private const int margin = 8;
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private readonly Anchor alignment;
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private readonly Box background;
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protected override IEnumerable<Drawable> EffectTargets => new[] { background };
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public Button(bool rightAligned, string text)
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{
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alignment = rightAligned ? Anchor.x0 : Anchor.x2;
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AutoSizeAxes = Axes.X;
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Height = height;
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Child = new CircularContainer
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{
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AutoSizeAxes = Axes.X,
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RelativeSizeAxes = Axes.Y,
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Masking = true,
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Children = new Drawable[]
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{
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background = new Box
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{
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RelativeSizeAxes = Axes.Both,
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},
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new Container
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{
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AutoSizeAxes = Axes.Both,
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Child = new FillFlowContainer
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{
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AutoSizeAxes = Axes.Both,
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Margin = new MarginPadding { Horizontal = margin },
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Direction = FillDirection.Horizontal,
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Children = new Drawable[]
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{
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new SpriteText
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{
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Anchor = Anchor.y1 | alignment,
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Origin = Anchor.y1 | alignment,
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Text = text.ToUpper(),
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},
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new SpriteIcon
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{
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Anchor = Anchor.y1 | alignment,
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Origin = Anchor.y1 | alignment,
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Icon = alignment == Anchor.x2 ? FontAwesome.Solid.ChevronLeft : FontAwesome.Solid.ChevronRight,
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Size = new Vector2(10),
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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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}
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[BackgroundDependencyLoader]
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private void load(OsuColour colours)
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{
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IdleColour = colours.GreySeafoamDark;
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HoverColour = colours.GrayA;
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}
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}
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}
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}
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