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From: "Dr. Tobias Quathamer" <toddy@debian.org>
Date: Fri, 24 Oct 2025 21:06:22 +0200
Subject: Add patch to revert commit 6aa93cd20570c3f73ab32881f77e1b29ca59c22e
In that commit, the package exp/color has been removed. However, it is
still needed by other packages in this library, so we add it again for now.
Forwarded: not-needed
---
exp/color/blend.go | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
exp/color/go.mod | 5 ++++
exp/color/go.sum | 2 ++
3 files changed, 76 insertions(+)
create mode 100644 exp/color/blend.go
create mode 100644 exp/color/go.mod
create mode 100644 exp/color/go.sum
diff --git a/exp/color/blend.go b/exp/color/blend.go
new file mode 100644
index 0000000..cee2c7f
--- /dev/null
+++ b/exp/color/blend.go
@@ -0,0 +1,69 @@
+// Package color contains utilities for working with colors.
+package color
+
+import (
+ "image/color"
+
+ "github.com/lucasb-eyer/go-colorful"
+)
+
+// Blend returns a slice of colors blended between the given
+// colors. Blending is done as Hcl to stay in gamut.
+//
+// Example:
+//
+// red := color.RGBA{R: 0xff, G: 0x00, B: 0x00, A: 0xff}
+// blue := color.RGBA{R: 0x00, G: 0x00, B: 0xff, A: 0xff}
+//
+// blend := Blend(10, red, blue)
+// var b strings.Builder
+//
+// for _, c := range blend {
+// b.WriteString(lipgloss.NewStyle().Background(c).Render(" "))
+// }
+//
+// lipgloss.Println(b.String())
+func Blend(size int, points ...color.Color) []color.Color {
+ if size <= 0 || len(points) < 2 {
+ return nil
+ }
+ if size == 1 {
+ return []color.Color{points[0]}
+ }
+
+ stops := make([]colorful.Color, len(points))
+ for i, c := range points {
+ stops[i], _ = colorful.MakeColor(c)
+ }
+
+ numSegments := len(stops) - 1
+ blended := make([]color.Color, 0, size)
+
+ // Calculate how many colors each segment should have.
+ segmentSizes := make([]int, numSegments)
+ baseSize := size / numSegments
+ remainder := size % numSegments
+
+ // Distribute the remainder across segments.
+ for i := range numSegments {
+ segmentSizes[i] = baseSize
+ if i < remainder {
+ segmentSizes[i]++
+ }
+ }
+
+ // Generate colors for each segment.
+ for i := range numSegments {
+ c1 := stops[i]
+ c2 := stops[i+1]
+ segmentSize := segmentSizes[i]
+
+ for j := range segmentSize {
+ t := float64(j) / float64(segmentSize)
+ c := c1.BlendHcl(c2, t)
+ blended = append(blended, c)
+ }
+ }
+
+ return blended
+}
diff --git a/exp/color/go.mod b/exp/color/go.mod
new file mode 100644
index 0000000..414e6c4
--- /dev/null
+++ b/exp/color/go.mod
@@ -0,0 +1,5 @@
+module github.com/charmbracelet/x/exp/color
+
+go 1.24.0
+
+require github.com/lucasb-eyer/go-colorful v1.3.0
diff --git a/exp/color/go.sum b/exp/color/go.sum
new file mode 100644
index 0000000..7e7b637
--- /dev/null
+++ b/exp/color/go.sum
@@ -0,0 +1,2 @@
+github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag=
+github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
|
