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dbc538abbe
With .NET core 2.0+ this is as efficient as the ugly code we've been using.
78 lines
2.9 KiB
C#
78 lines
2.9 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using OpenTK;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using System.Collections.Generic;
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using System.Linq;
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namespace osu.Game.Graphics.UserInterface
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{
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public class BarGraph : FillFlowContainer<Bar>
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{
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/// <summary>
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/// Manually sets the max value, if null <see cref="Enumerable.Max(IEnumerable{float})"/> is instead used
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/// </summary>
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public float? MaxValue { get; set; }
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private BarDirection direction = BarDirection.BottomToTop;
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public new BarDirection Direction
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{
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get
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{
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return direction;
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}
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set
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{
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direction = value;
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base.Direction = direction.HasFlag(BarDirection.Horizontal) ? FillDirection.Vertical : FillDirection.Horizontal;
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foreach (var bar in Children)
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{
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bar.Size = direction.HasFlag(BarDirection.Horizontal) ? new Vector2(1, 1.0f / Children.Count) : new Vector2(1.0f / Children.Count, 1);
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bar.Direction = direction;
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}
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}
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}
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/// <summary>
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/// A list of floats that defines the length of each <see cref="Bar"/>
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/// </summary>
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public IEnumerable<float> Values
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{
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set
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{
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List<Bar> bars = Children.ToList();
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foreach (var bar in value.Select((length, index) => new { Value = length, Bar = bars.Count > index ? bars[index] : null }))
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{
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float length = MaxValue ?? value.Max();
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if (length != 0)
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length = bar.Value / length;
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float size = value.Count();
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if (size != 0)
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size = 1.0f / size;
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if (bar.Bar != null)
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{
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bar.Bar.Length = length;
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bar.Bar.Size = direction.HasFlag(BarDirection.Horizontal) ? new Vector2(1, size) : new Vector2(size, 1);
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}
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else
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{
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Add(new Bar
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{
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RelativeSizeAxes = Axes.Both,
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Size = direction.HasFlag(BarDirection.Horizontal) ? new Vector2(1, size) : new Vector2(size, 1),
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Length = length,
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Direction = Direction,
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});
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}
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}
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//I'm using ToList() here because Where() returns an Enumerable which can change it's elements afterwards
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RemoveRange(Children.Where((bar, index) => index >= value.Count()).ToList());
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}
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}
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}
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}
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