mirror of https://github.com/ppy/osu
63 lines
2.1 KiB
C#
63 lines
2.1 KiB
C#
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// Copyright (c) 2007-2017 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 System;
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using System.Collections.Generic;
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using System.Linq;
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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 osu.Framework.Graphics.Lines;
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namespace osu.Game.Graphics.UserInterface
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{
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public class LineGraph : Container
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{
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/// <summary>
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/// Manually set the max value, otherwise <see cref="Enumerable.Max(IEnumerable{float})"/> will be used.
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/// </summary>
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public float? MaxValue { get; set; }
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/// <summary>
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/// Manually set the min value, otherwise <see cref="Enumerable.Min(IEnumerable{float})"/> will be used.
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/// </summary>
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public float? MinValue { get; set; }
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private const float transform_duration = 250;
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/// <summary>
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/// Hold an empty area if values are less.
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/// </summary>
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public int DefaultValueCount;
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private Path path;
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/// <summary>
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/// A list of floats decides position of each line node.
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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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path?.Expire();
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Path localPath = new Path { RelativeSizeAxes = Axes.Both }; //capture a copy to avoid potential change
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Add(path = localPath);
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var values = value.ToArray();
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int count = Math.Max(values.Length, DefaultValueCount);
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float max = values.Max(), min = values.Min();
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if (MaxValue > max) max = MaxValue.Value;
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if (MinValue < min) min = MinValue.Value;
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for (int i = 0; i < values.Length; i++)
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{
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float x = (i + count - values.Length) / (float)(count - 1);
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float y = (max - values[i]) / (max - min);
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Scheduler.AddDelayed(() => localPath.AddVertex(new Vector2(x, y)), x * transform_duration);
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}
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}
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}
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}
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}
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