Refactor 256 color

ui/color/color.go

@@ -31,11 +31,11 @@ func SprintFunc(c color.Style) func(args ...interface{}) string {
 type Option func(*options)
 
 type options struct {
-	Bold bool
-	Bg   bool
+	bold bool
+	bg   bool
 }
 
-func NewOptions(opts []Option) options {
+func newOptions(opts []Option) options {
 	options := options{}
 	for i := range opts {
 		if opts[i] == nil {
@@ -46,24 +46,24 @@ func NewOptions(opts []Option) options {
 	return options
 }
 
-func Bold(o *options)       { o.Bold = true }
-func Background(o *options) { o.Bg = true }
+func Bold(o *options)       { o.bold = true }
+func Background(o *options) { o.bg = true }
 
 func Yellow(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bold {
+	options := newOptions(opts)
+	if options.bold {
 		return yellowBold
 	}
 	return yellow
 }
 
 func Green(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bold {
+	options := newOptions(opts)
+	if options.bold {
 		return greenBold
 	}
 
-	if options.Bg {
+	if options.bg {
 		return greenBg
 	}
 
@@ -71,44 +71,63 @@ func Green(opts ...Option) func(a ...interface{}) string {
 }
 
 func Red(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bold {
+	options := newOptions(opts)
+	if options.bold {
 		return redBold
 	}
 	return red
 }
 
 func White(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bold {
+	options := newOptions(opts)
+	if options.bold {
 		return whiteBold
 	}
 	return white
 }
 
 func Cyan(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bold {
+	options := newOptions(opts)
+	if options.bold {
 		return cyanBold
 	}
-	if options.Bg {
+	if options.bg {
 		return cyanBg
 	}
 	return cyan
 }
 
 func Black(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bg {
+	options := newOptions(opts)
+	if options.bg {
 		return blackBg
 	}
 	return black
 }
 
 func Magenta(opts ...Option) func(a ...interface{}) string {
-	options := NewOptions(opts)
-	if options.Bg {
+	options := newOptions(opts)
+	if options.bg {
 		return magentaBg
 	}
 	return magentaBg
 }
+
+func HSL256(h, s, l float64, opts ...Option) func(a ...interface{}) string {
+	options := newOptions(opts)
+	val := color.HSL(h, s, l).C256().Value()
+	c := color.S256(val)
+	if options.bg {
+		fg := color.White.C256().Value()
+		if l > 0.5 {
+			fg = color.Black.C256().Value()
+		}
+		c = color.S256(fg, val)
+	}
+	if options.bold {
+		c.AddOpts(color.Bold)
+	}
+	return func(a ...interface{}) string {
+		return c.Sprint(a...)
+	}
+}

ui/views/views.go

@@ -7,10 +7,9 @@ import (
 	"github.com/pkg/errors"
 
 	"github.com/edouardparis/lntop/config"
-	lntcolor "github.com/edouardparis/lntop/ui/color"
+	"github.com/edouardparis/lntop/ui/color"
 	"github.com/edouardparis/lntop/ui/cursor"
 	"github.com/edouardparis/lntop/ui/models"
-	"github.com/gookit/color"
 )
 
 type View interface {
@@ -139,7 +138,7 @@ func interp(a, b [3]float64, r float64) (result [3]float64) {
 	return
 }
 
-func ColorizeAge(age uint32, text string, opts ...lntcolor.Option) string {
+func ColorizeAge(age uint32, text string, opts ...color.Option) string {
 	ageColors := [][3]float64{
 		{120, 0.9, 0.9},
 		{60, 0.9, 0.6},
@@ -153,11 +152,5 @@ func ColorizeAge(age uint32, text string, opts ...lntcolor.Option) string {
 	} else {
 		cur = ageColors[2]
 	}
-	val := color.HSL(cur[0]/360, cur[1], cur[2]).C256().Value()
-	c := color.S256(val)
-	options := lntcolor.NewOptions(opts)
-	if options.Bold {
-		c.AddOpts(color.Bold)
-	}
-	return c.Sprint(text)
+	return color.HSL256(cur[0]/360, cur[1], cur[2], opts...)(text)
 }