TheXamlGuy
46 lines
1.6 KiB
C#
46 lines
1.6 KiB
C#
using Avalonia.Media;
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using System.Security.Cryptography;
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using System.Text;
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namespace Toolkit.UI.Controls.Avalonia;
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public class PersonPictureColourGenerator
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{
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private readonly string[] colours =
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[
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"#FFB900", "#FF8C00", "#F7630C", "#CA5010", "#DA3B01", "#EF6950", "#D13438", "#FF4343",
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"#E74856", "#E81123", "#EA005E", "#C30052", "#E3008C", "#BF0077", "#C239B3", "#9A0089",
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"#0078D7", "#0063B1", "#8E8CD8", "#6B69D6", "#8764B8", "#744DA9", "#B146C2", "#881798",
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"#0099BC", "#2D7D9A", "#00B7C3", "#038387", "#00B294", "#018574", "#00CC6A", "#10893E",
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"#7A7574", "#5D5A58", "#68768A", "#515C6B", "#567C73", "#486860", "#498205", "#107C10",
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"#767676", "#4C4A48", "#69797E", "#4A5459", "#647C64", "#525E54", "#847545", "#7E735F"
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];
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public Color GenerateColour(string input)
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{
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byte[] hashBytes = GetHash(input);
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int colourIndex = BitConverter.ToInt32(hashBytes, 0) % colours.Length;
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colourIndex = Math.Abs(colourIndex);
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return HexToColour(colours[colourIndex]);
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}
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private byte[] GetHash(string input)
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{
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return SHA256.HashData(Encoding.UTF8.GetBytes(input));
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}
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private Color HexToColour(string hex)
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{
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hex = hex.Replace("#", string.Empty);
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byte a = 255;
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byte r = byte.Parse(hex.Substring(0, 2), System.Globalization.NumberStyles.HexNumber);
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byte g = byte.Parse(hex.Substring(2, 2), System.Globalization.NumberStyles.HexNumber);
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byte b = byte.Parse(hex.Substring(4, 2), System.Globalization.NumberStyles.HexNumber);
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return Color.FromArgb(a, r, g, b);
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}
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}
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