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osu-lazer/osu.Game/Screens/Play/SongProgressBar.cs

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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using OpenTK;
using OpenTK.Graphics;
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using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics.UserInterface;
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namespace osu.Game.Screens.Play
{
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public class SongProgressBar : SliderBar<double>
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{
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public Action<double> OnSeek;
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private readonly Box fill;
private readonly Container handleBase;
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public Color4 FillColour
{
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set { fill.Colour = value; }
}
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public double StartTime
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{
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set { CurrentNumber.MinValue = value; }
}
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public double EndTime
{
set { CurrentNumber.MaxValue = value; }
}
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public double CurrentTime
{
set { CurrentNumber.Value = value; }
}
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public SongProgressBar(float barHeight, float handleBarHeight, Vector2 handleSize)
{
CurrentNumber.MinValue = 0;
CurrentNumber.MaxValue = 1;
RelativeSizeAxes = Axes.X;
Height = barHeight + handleBarHeight + handleSize.Y;
Children = new Drawable[]
{
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new Box
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{
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Name = "Background",
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
RelativeSizeAxes = Axes.X,
Height = barHeight,
Colour = Color4.Black,
Alpha = 0.5f,
Depth = 1,
},
fill = new Box
{
Name = "Fill",
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
Height = barHeight,
},
handleBase = new Container
{
Name = "HandleBar container",
Origin = Anchor.BottomLeft,
Anchor = Anchor.BottomLeft,
Width = 2,
Height = barHeight + handleBarHeight,
Colour = Color4.White,
Position = new Vector2(2, 0),
Children = new Drawable[]
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{
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new Box
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{
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Name = "HandleBar box",
RelativeSizeAxes = Axes.Both,
},
new Container
{
Name = "Handle container",
Origin = Anchor.BottomCentre,
Anchor = Anchor.TopCentre,
Size = handleSize,
CornerRadius = 5,
Masking = true,
Children = new Drawable[]
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{
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new Box
{
Name = "Handle box",
RelativeSizeAxes = Axes.Both,
Colour = Color4.White
}
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}
}
}
}
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};
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}
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protected override void UpdateValue(float value)
{
var xFill = value * UsableWidth;
fill.Width = xFill;
handleBase.MoveToX(xFill);
}
protected override void OnUserChange() => OnSeek?.Invoke(Current);
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}
}