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Code Issues Releases Wiki Activity

Updated avatar color selection logic (#2151)

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* updated avatar color selection logic

* tweaks

* more tweaks

* formatting
This commit is contained in:
mp-bw
2022-10-26 12:34:54 -04:00
committed by GitHub
parent 505426cd6a
commit 5deba15373
6 changed files with 63 additions and 26 deletions
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32
src/Core/Utilities/CoreHelpers.cs
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@@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
@@ -264,5 +265,36 @@ namespace Bit.Core.Utilities
{
return JsonConvert.DeserializeObject<T>(JsonConvert.SerializeObject(obj));
}
public static string TextColorFromBgColor(string hexColor, int threshold = 166)
{
if (new ColorConverter().ConvertFromString(hexColor) is Color bgColor)
{
var luminance = bgColor.R * 0.299 + bgColor.G * 0.587 + bgColor.B * 0.114;
return luminance > threshold ? "#ff000000" : "#ffffffff";
}
return "#ff000000";
}
public static string StringToColor(string str, string fallback)
{
if (str == null)
{
return fallback;
}
var hash = 0;
for (var i = 0; i < str.Length; i++)
{
hash = str[i] + ((hash << 5) - hash);
}
var color = "#FF";
for (var i = 0; i < 3; i++)
{
var value = (hash >> (i * 8)) & 0xff;
color += Convert.ToString(value, 16).PadLeft(2, '0');
}
return color;
}
}
}