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osu-lazer/osu.Game/Overlays/OverlaySidebar.cs

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// 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 osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Input.Events;
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using osu.Game.Graphics.Containers;
namespace osu.Game.Overlays
{
public abstract partial class OverlaySidebar : CompositeDrawable
{
private readonly Box sidebarBackground;
private readonly Box scrollbarBackground;
protected OverlaySidebar()
{
RelativeSizeAxes = Axes.Y;
Width = 250;
InternalChildren = new Drawable[]
{
sidebarBackground = new Box
{
RelativeSizeAxes = Axes.Both,
},
scrollbarBackground = new Box
{
RelativeSizeAxes = Axes.Y,
Width = OsuScrollContainer.SCROLL_BAR_WIDTH,
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Anchor = Anchor.TopRight,
Origin = Anchor.TopRight,
Alpha = 0.5f
},
new Container
{
RelativeSizeAxes = Axes.Both,
Padding = new MarginPadding { Right = -3 }, // Compensate for scrollbar margin
Child = new SidebarScrollContainer
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{
RelativeSizeAxes = Axes.Both,
Child = new Container
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Padding = new MarginPadding { Right = 3 }, // Addeded 3px back
Child = new Container
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Padding = new MarginPadding
{
Vertical = 20,
Left = WaveOverlayContainer.HORIZONTAL_PADDING,
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Right = 30
},
Child = CreateContent()
}
}
}
}
};
}
[BackgroundDependencyLoader]
private void load(OverlayColourProvider colourProvider)
{
sidebarBackground.Colour = colourProvider.Background4;
scrollbarBackground.Colour = colourProvider.Background3;
}
protected virtual Drawable CreateContent() => Empty();
private partial class SidebarScrollContainer : OsuScrollContainer
{
protected override bool OnScroll(ScrollEvent e)
{
if (e.ScrollDelta.Y > 0 && IsScrolledToStart())
return false;
if (e.ScrollDelta.Y < 0 && IsScrolledToEnd())
return false;
return base.OnScroll(e);
}
protected override bool OnDragStart(DragStartEvent e)
{
if (e.Delta.Y > 0 && IsScrolledToStart())
return false;
if (e.Delta.Y < 0 && IsScrolledToEnd())
return false;
return base.OnDragStart(e);
}
}
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}
}