mirror of
https://github.com/ppy/osu
synced 2024-12-09 16:39:15 +00:00
150 lines
4.8 KiB
C#
150 lines
4.8 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
|
|
// See the LICENCE file in the repository root for full licence text.
|
|
|
|
using System.Collections.Generic;
|
|
using osu.Framework.Allocation;
|
|
using osu.Framework.Extensions.Color4Extensions;
|
|
using osu.Framework.Graphics;
|
|
using osu.Framework.Graphics.Containers;
|
|
using osu.Framework.Graphics.Effects;
|
|
using osu.Framework.Graphics.Shapes;
|
|
using osu.Framework.Graphics.Sprites;
|
|
using osu.Framework.Input.Events;
|
|
using osu.Game.Graphics.Containers;
|
|
using osuTK;
|
|
using osuTK.Graphics;
|
|
|
|
namespace osu.Game.Overlays
|
|
{
|
|
/// <summary>
|
|
/// <see cref="OsuScrollContainer"/> which provides <see cref="ScrollToTopButton"/>. Mostly used in <see cref="FullscreenOverlay{T}"/>.
|
|
/// </summary>
|
|
public class OverlayScrollContainer : OsuScrollContainer
|
|
{
|
|
/// <summary>
|
|
/// Scroll position at which the <see cref="ScrollToTopButton"/> will be shown.
|
|
/// </summary>
|
|
private const int button_scroll_position = 200;
|
|
|
|
protected readonly ScrollToTopButton Button;
|
|
|
|
public OverlayScrollContainer()
|
|
{
|
|
AddInternal(Button = new ScrollToTopButton
|
|
{
|
|
Anchor = Anchor.BottomRight,
|
|
Origin = Anchor.BottomRight,
|
|
Margin = new MarginPadding(20),
|
|
Action = () =>
|
|
{
|
|
ScrollToStart();
|
|
Button.State = Visibility.Hidden;
|
|
}
|
|
});
|
|
}
|
|
|
|
protected override void UpdateAfterChildren()
|
|
{
|
|
base.UpdateAfterChildren();
|
|
|
|
if (ScrollContent.DrawHeight + button_scroll_position < DrawHeight)
|
|
{
|
|
Button.State = Visibility.Hidden;
|
|
return;
|
|
}
|
|
|
|
Button.State = Target > button_scroll_position ? Visibility.Visible : Visibility.Hidden;
|
|
}
|
|
|
|
public class ScrollToTopButton : OsuHoverContainer
|
|
{
|
|
private const int fade_duration = 500;
|
|
|
|
private Visibility state;
|
|
|
|
public Visibility State
|
|
{
|
|
get => state;
|
|
set
|
|
{
|
|
if (value == state)
|
|
return;
|
|
|
|
state = value;
|
|
Enabled.Value = state == Visibility.Visible;
|
|
this.FadeTo(state == Visibility.Visible ? 1 : 0, fade_duration, Easing.OutQuint);
|
|
}
|
|
}
|
|
|
|
protected override IEnumerable<Drawable> EffectTargets => new[] { background };
|
|
|
|
private Color4 flashColour;
|
|
|
|
private readonly Container content;
|
|
private readonly Box background;
|
|
|
|
public ScrollToTopButton()
|
|
{
|
|
Size = new Vector2(50);
|
|
Alpha = 0;
|
|
Add(content = new CircularContainer
|
|
{
|
|
RelativeSizeAxes = Axes.Both,
|
|
Anchor = Anchor.Centre,
|
|
Origin = Anchor.Centre,
|
|
Masking = true,
|
|
EdgeEffect = new EdgeEffectParameters
|
|
{
|
|
Type = EdgeEffectType.Shadow,
|
|
Offset = new Vector2(0f, 1f),
|
|
Radius = 3f,
|
|
Colour = Color4.Black.Opacity(0.25f),
|
|
},
|
|
Children = new Drawable[]
|
|
{
|
|
background = new Box
|
|
{
|
|
RelativeSizeAxes = Axes.Both
|
|
},
|
|
new SpriteIcon
|
|
{
|
|
Anchor = Anchor.Centre,
|
|
Origin = Anchor.Centre,
|
|
Size = new Vector2(15),
|
|
Icon = FontAwesome.Solid.ChevronUp
|
|
}
|
|
}
|
|
});
|
|
|
|
TooltipText = "Scroll to top";
|
|
}
|
|
|
|
[BackgroundDependencyLoader]
|
|
private void load(OverlayColourProvider colourProvider)
|
|
{
|
|
IdleColour = colourProvider.Background6;
|
|
HoverColour = colourProvider.Background5;
|
|
flashColour = colourProvider.Light1;
|
|
}
|
|
|
|
protected override bool OnClick(ClickEvent e)
|
|
{
|
|
background.FlashColour(flashColour, 800, Easing.OutQuint);
|
|
return base.OnClick(e);
|
|
}
|
|
|
|
protected override bool OnMouseDown(MouseDownEvent e)
|
|
{
|
|
content.ScaleTo(0.75f, 2000, Easing.OutQuint);
|
|
return true;
|
|
}
|
|
|
|
protected override void OnMouseUp(MouseUpEvent e)
|
|
{
|
|
content.ScaleTo(1, 1000, Easing.OutElastic);
|
|
base.OnMouseUp(e);
|
|
}
|
|
}
|
|
}
|
|
}
|