From 89094fecf4cb1c018f15c976641cd18c255eac28 Mon Sep 17 00:00:00 2001 From: Benjamin Chausse Date: Sat, 23 Nov 2024 18:12:03 -0500 Subject: Semi-working POC --- internal/colors/precise.go | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 internal/colors/precise.go (limited to 'internal/colors/precise.go') diff --git a/internal/colors/precise.go b/internal/colors/precise.go new file mode 100644 index 0000000..fafa104 --- /dev/null +++ b/internal/colors/precise.go @@ -0,0 +1,38 @@ +package colors + +import ( + "fmt" + "math" + "strings" +) + +type ColorSpace interface { + ToPrecise() PreciseColor + FromPrecise(PreciseColor) ColorSpace +} + +// PreciseColor is a color with floating point values for red, green, and blue. +// The extra precision minimizes rounding errors when converting between different +// color spaces. It is used as an intermediate representation when converting between +// different color spaces. +type PreciseColor struct { + R, G, B float64 +} + +func (c PreciseColor) ToPrecise() PreciseColor { + return c +} + +func (c PreciseColor) FromPrecise(p PreciseColor) ColorSpace { + return p +} + +func ToHexString(cs ColorSpace) string { + p := cs.ToPrecise() + + return strings.ToUpper(fmt.Sprintf("#%02x%02x%02x", + int(math.Round(p.R*255)), + int(math.Round(p.G*255)), + int(math.Round(p.B*255)), + )) +} -- cgit v1.2.3