2019-09-07 04:31:07 +00:00
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// 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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2019-09-07 04:31:07 +00:00
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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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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 = pillsFlow = new FillFlowContainer
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{
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AutoSizeAxes = Axes.X,
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RelativeSizeAxes = Axes.Y,
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Direction = FillDirection.Horizontal,
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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(_ => redraw(), true);
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}
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private void redraw()
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{
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pillsFlow.Clear();
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if (CurrentPage.Value == 1)
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addPreviousPageButton();
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else
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addPreviousPageButton(() => CurrentPage.Value -= 1);
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if (CurrentPage.Value > 3)
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addDrawablePage(1);
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if (CurrentPage.Value > 4)
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addPlaceholder();
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for (int i = Math.Max(CurrentPage.Value - 2, 1); i <= Math.Min(CurrentPage.Value + 2, maxPages); i++)
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{
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if (i == CurrentPage.Value)
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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 (CurrentPage.Value + 2 < maxPages - 1)
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addPlaceholder();
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if (CurrentPage.Value + 2 < maxPages)
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addDrawablePage(maxPages);
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if (CurrentPage.Value == maxPages)
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addNextPageButton();
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else
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addNextPageButton(() => CurrentPage.Value += 1);
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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 void addPreviousPageButton(Action action = null)
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{
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pillsFlow.Add(new PreviousPageButton(action));
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}
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private void addNextPageButton(Action action = null)
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{
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pillsFlow.Add(new NextPageButton(action));
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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 PreviousPageButton : ActivatedDrawablePage
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{
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private OsuColour colours;
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private Box background;
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public PreviousPageButton(Action action)
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: base("prev", 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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background.Colour = colours.GreySeafoam;
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if (Action == null)
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{
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Content.FadeColour(colours.GrayA);
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background.FadeColour(colours.GrayA);
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}
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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 FillFlowContainer
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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AutoSizeAxes = Axes.X,
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RelativeSizeAxes = Axes.Y,
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Direction = FillDirection.Horizontal,
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Spacing = new Vector2(3),
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Children = new Drawable[]
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{
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new SpriteIcon
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Icon = FontAwesome.Solid.CaretLeft,
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Size = new Vector2(10),
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},
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new SpriteText
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Text = Text.ToUpper(),
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}
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}
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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 NextPageButton : ActivatedDrawablePage
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{
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private OsuColour colours;
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private Box background;
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public NextPageButton(Action action)
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: base("next", 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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background.Colour = colours.GreySeafoam;
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if (Action == null)
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{
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Content.FadeColour(colours.GrayA);
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background.FadeColour(colours.GrayA);
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}
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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 FillFlowContainer
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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AutoSizeAxes = Axes.X,
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RelativeSizeAxes = Axes.Y,
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Direction = FillDirection.Horizontal,
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Spacing = new Vector2(3),
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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.CentreLeft,
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Origin = Anchor.CentreLeft,
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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.CentreLeft,
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Origin = Anchor.CentreLeft,
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Icon = FontAwesome.Solid.CaretRight,
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Size = new Vector2(10),
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},
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}
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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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2019-09-07 04:31:07 +00:00
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}
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}
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