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LibGfx: Add saturation modification functions to Color

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This operates via the HSV color space; I'm not 100% sure whether the
conversions are lossless.
This commit is contained in:
kleines Filmröllchen 2022-08-17 18:04:08 +02:00 • committed by Linus Groh
parent 5bb277d9ec
commit 049c1a536c
1 changed files with 9 additions and 0 deletions
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9
Userland/Libraries/LibGfx/Color.h
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@ -313,6 +313,15 @@ public:
Vector<Color> shades(u32 steps, float max = 1.f) const; Vector<Color> shades(u32 steps, float max = 1.f) const;
Vector<Color> tints(u32 steps, float max = 1.f) const; Vector<Color> tints(u32 steps, float max = 1.f) const;
constexpr Color saturated_to(float saturation) const
{
auto hsv = to_hsv();
auto alpha = this->alpha();
auto color = Color::from_hsv(hsv.hue, static_cast<double>(saturation), hsv.value);
color.set_alpha(alpha);
return color;
}
constexpr Color inverted() const constexpr Color inverted() const
{ {
return Color(~red(), ~green(), ~blue(), alpha()); return Color(~red(), ~green(), ~blue(), alpha());