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test: ✅ add ut (#183)
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* fix: fix color string name

BrightRed
BrightGreen

* refactor: ♻️ remove unused code

* fix: 🐛 fix RGBMultiply

* test: ✅ add ut
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@Equationzhao
Equationzhao authored May 12, 2024
1 parent 8af2159 commit 8577148
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Showing 7 changed files with 972 additions and 254 deletions.
180 changes: 25 additions & 155 deletions internal/theme/color.go
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Original file line number Diff line number Diff line change
Expand Up @@ -36,34 +36,9 @@ func rgb(r, g, b uint8) string {
}

func RGB(r, g, b uint8) (string, error) {
err := checkRGB(
r, g, b, func(v uint8) error {
if v > 255 {
return errors.New("color must between 0 and 255")
}
return nil
},
)
if err != nil {
return "", err
}

return rgb(r, g, b), nil
}

func checkRGB(r, g, b uint8, check func(v uint8) error) error {
if err := check(r); err != nil {
return err
}
if err := check(g); err != nil {
return err
}
if err := check(b); err != nil {
return err
}
return nil
}

// BasicTo256 convert basic color to 256 color
func BasicTo256(b string) string {
// parse basic color
Expand Down Expand Up @@ -125,39 +100,17 @@ func RGBTo256Int(r, g, b uint8) int {
}

// RGBTo256 convert rgb color to 256 color
func RGBTo256(r, g, b uint8) (string, error) {
err := checkRGB(
r, g, b, func(v uint8) error {
if v > 255 {
return errors.New("color must between 0 and 255")
}
return nil
},
)
if err != nil {
return "", err
}
return fmt.Sprintf(Color256Format, RGBTo256Int(r, g, b)), nil
func RGBTo256(r, g, b uint8) string {
return fmt.Sprintf(Color256Format, RGBTo256Int(r, g, b))
}

func RGBToBasicInt(r, g, b uint8) string {
return fmt.Sprintf(BasicFormat, colortool.Rgb2ansi(r, g, b, false))
}

// RGBToBasic convert rgb color to basic color
func RGBToBasic(r, g, b uint8) (string, error) {
err := checkRGB(
r, g, b, func(v uint8) error {
if v > 255 {
return errors.New("color must between 0 and 255")
}
return nil
},
)
if err != nil {
return "", err
}
return RGBToBasicInt(r, g, b), nil
func RGBToBasic(r, g, b uint8) string {
return RGBToBasicInt(r, g, b)
}

// Color256ToRGB convert 256 color to RGB color
Expand All @@ -168,13 +121,13 @@ func Color256ToRGB(str256 string) (string, error) {
if err != nil {
return "", err
}
return c256ToRGB(v)
return c256ToRGB(v), nil
}

func c256ToRGB(v uint8) (string, error) {
func c256ToRGB(v uint8) string {
c256ToRgb := colortool.C256ToRgb(v)
r, g, b := c256ToRgb[0], c256ToRgb[1], c256ToRgb[2]
return rgb(r, g, b), nil
return rgb(r, g, b)
}

// Color256ToBasic convert 256 color to basic color
Expand All @@ -184,13 +137,13 @@ func Color256ToBasic(str256 string) (string, error) {
if err != nil {
return "", err
}
return c256ToBasic(v)
return c256ToBasic(v), nil
}

func c256ToBasic(v uint8) (string, error) {
func c256ToBasic(v uint8) string {
c256ToRgb := colortool.C256ToRgb(v)
r, g, b := c256ToRgb[0], c256ToRgb[1], c256ToRgb[2]
return RGBToBasicInt(r, g, b), nil
return RGBToBasicInt(r, g, b)
}

// HexToRgb convert hex color to rgb color
Expand Down Expand Up @@ -243,19 +196,19 @@ func RGBMultiply(rgbStr string, radio float64) string {
var r, g, b uint8 = 0, 0, 0
_, _ = fmt.Fscanf(strings.NewReader(rgbStr), RGBFormat, &r, &g, &b)

r = uint8(math.Ceil(float64(r) * radio))
g = uint8(math.Ceil(float64(g) * radio))
b = uint8(math.Ceil(float64(b) * radio))
if r > 255 {
r = 255
rf := math.Ceil(float64(r) * radio)
gf := math.Ceil(float64(g) * radio)
bf := math.Ceil(float64(b) * radio)
if rf > 255 {
rf = 255
}
if g > 255 {
g = 255
if gf > 255 {
gf = 255
}
if b > 255 {
b = 255
if bf > 255 {
bf = 255
}
return rgb(r, g, b)
return rgb(uint8(rf), uint8(gf), uint8(bf))
}

const (
Expand All @@ -273,88 +226,6 @@ func (e ErrUnknownColorType) Error() string {
return fmt.Sprintf("unknown color type:%d", e.Level)
}

func ConvertColor(to colortool.Level, src string) (string, error) {
if to == None {
return "", nil
}

switch src {
case "":
return "", nil
case
// 1.basic
constval.Reset,
constval.Red,
constval.Green,
constval.Yellow,
constval.Blue,
constval.Purple,
constval.Cyan,
constval.White,
constval.BrightBlack,
constval.BrightRed,
constval.BrightGreen,
constval.BrightYellow,
constval.BrightBlue,
constval.BrightPurple,
constval.BrightCyan,
constval.BrightWhite:
switch to {
case Ascii:
return src, nil
case C256:
return BasicTo256(src), nil
case TrueColor:
return BasicToRGB(src), nil
default:
return "", ErrUnknownColorType{Level: to}
}
case constval.Underline:
return src, nil
default:

strReader := strings.NewReader(src)

// 2.8bit/256 color
var c uint8
_, err := fmt.Fscanf(strReader, Color256Format, &c)
if err == nil {
switch to {
case Ascii:
return c256ToBasic(c)
case C256:
return src, nil
case TrueColor:
return c256ToRGB(c)
default:
return "", ErrUnknownColorType{Level: to}
}
}

// 3.rgb
var (
r uint8 = 0
g uint8 = 0
b uint8 = 0
)
strReader = strings.NewReader(src)
_, err = fmt.Fscanf(strReader, RGBFormat, &r, &g, &b)
if err == nil {
switch to {
case Ascii:
return RGBToBasic(r, g, b)
case C256:
return RGBTo256(r, g, b)
case TrueColor:
return src, nil
default:
return "", ErrUnknownColorType{Level: to}
}
}
return "", errors.New("unknown color type")
}
}

func ConvertColorIfGreaterThanExpect(to colortool.Level, src string) (string, error) {
if to == None {
return "", nil
Expand All @@ -381,9 +252,8 @@ func ConvertColorIfGreaterThanExpect(to colortool.Level, src string) (string, er
constval.BrightBlue,
constval.BrightPurple,
constval.BrightCyan,
constval.BrightWhite:
return src, nil
case constval.Underline:
constval.BrightWhite,
constval.Underline:
return src, nil
default:

Expand All @@ -395,7 +265,7 @@ func ConvertColorIfGreaterThanExpect(to colortool.Level, src string) (string, er
if err == nil {
switch to {
case Ascii:
return c256ToBasic(c)
return c256ToBasic(c), nil
case C256:
return src, nil
case TrueColor:
Expand All @@ -417,9 +287,9 @@ func ConvertColorIfGreaterThanExpect(to colortool.Level, src string) (string, er
if err == nil {
switch to {
case Ascii:
return RGBToBasic(r, g, b)
return RGBToBasic(r, g, b), nil
case C256:
return RGBTo256(r, g, b)
return RGBTo256(r, g, b), nil
case TrueColor:
return src, nil
default:
Expand Down
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