50 lines
949 B
C++
50 lines
949 B
C++
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/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- ColorFix
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Abstract:
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- Implementation of perceptual color nudging, which allows the Terminal
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to slightly shift the foreground color to make it more perceivable on
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the current background (for cases where the foreground is very close
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to being imperceivable on the background).
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Author(s):
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- Pankaj Bhojwani - Sep 2021
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--*/
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#pragma once
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struct ColorFix
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{
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public:
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ColorFix(COLORREF color);
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static COLORREF GetPerceivableColor(COLORREF fg, COLORREF bg);
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// RGB
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union
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{
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struct
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{
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BYTE r, g, b, dummy;
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};
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COLORREF rgb;
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};
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// Lab
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struct
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{
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double L, A, B;
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};
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private:
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static double _GetHPrimeFn(double x, double y);
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static double _GetDeltaE(ColorFix x1, ColorFix x2);
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void _ToLab();
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void _ToRGB();
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};
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