TheXamlGuy
86 lines
1.9 KiB
C#
86 lines
1.9 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",
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"#FF8C00",
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"#F7630C",
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"#CA5010",
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"#DA3B01",
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"#EF6950",
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"#D13438",
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"#FF4343",
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"#E74856",
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"#E81123",
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"#EA005E",
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"#C30052",
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"#E3008C",
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"#BF0077",
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"#C239B3",
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"#9A0089",
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"#0078D7",
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"#0063B1",
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"#8E8CD8",
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"#6B69D6",
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"#8764B8",
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"#744DA9",
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"#B146C2",
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"#881798",
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"#0099BC",
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"#2D7D9A",
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"#00B7C3",
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"#038387",
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"#00B294",
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"#018574",
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"#00CC6A",
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"#10893E",
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"#7A7574",
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"#5D5A58",
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"#68768A",
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"#515C6B",
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"#567C73",
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"#486860",
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"#498205",
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"#107C10",
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"#767676",
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"#4C4A48",
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"#69797E",
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"#4A5459",
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"#647C64",
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"#525E54",
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"#847545",
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"#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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} |