up: add Set and Reset method to Color256 and RgbColor

color.go

@@ -104,28 +104,15 @@ func SupportTrueColor() bool {
 
 // Set set console color attributes
 func Set(colors ...Color) (int, error) {
-	if !Enable { // not enable
-		return 0, nil
-	}
-
-	if !SupportColor() {
-		return 0, nil
-	}
-
-	return fmt.Printf(SettingTpl, Colors2code(colors...))
+	code := Colors2code(colors...)
+	err := SetTerminal(code)
+	return 0, err
 }
 
 // Reset reset console color attributes
 func Reset() (int, error) {
-	if !Enable { // not enable
-		return 0, nil
-	}
-
-	if !SupportColor() {
-		return 0, nil
-	}
-
-	return fmt.Print(ResetSet)
+	err := ResetTerminal()
+	return 0, err
 }
 
 // Disable disable color output

color_256.go

@@ -73,6 +73,16 @@ func C256(val uint8, isBg ...bool) Color256 {
 	return bc
 }
 
+// Set terminal by 256 color code
+func (c Color256) Set() error {
+	return SetTerminal(c.String())
+}
+
+// Reset terminal. alias of the ResetTerminal()
+func (c Color256) Reset() error {
+	return ResetTerminal()
+}
+
 // Print print message
 func (c Color256) Print(a ...interface{}) {
 	doPrintV2(c.String(), fmt.Sprint(a...))
@@ -108,7 +118,7 @@ func (c Color256) Value() uint8 {
 	return c[0]
 }
 
-// String convert to color code string.
+// String convert to color code string. eg: "38;5;12"
 func (c Color256) String() string {
 	if c[1] == AsFg { // 0 is Fg
 		return fmt.Sprintf(TplFg256, c[0])

color_rgb.go

@@ -142,6 +142,16 @@ func RGBFromString(rgb string, isBg ...bool) RGBColor {
 	return RGB(uint8(ar[0]), uint8(ar[1]), uint8(ar[2]), isBg...)
 }
 
+// Set terminal by rgb/true color code
+func (c RGBColor) Set() error {
+	return SetTerminal(c.String())
+}
+
+// Reset terminal. alias of the ResetTerminal()
+func (c RGBColor) Reset() error {
+	return ResetTerminal()
+}
+
 // Print print message
 func (c RGBColor) Print(a ...interface{}) {
 	doPrintV2(c.String(), fmt.Sprint(a...))
@@ -177,13 +187,13 @@ func (c RGBColor) Code() string {
 	return c.String()
 }
 
-// Hex color rgb to hex string. as in #ff0080.
+// Hex color rgb to hex string. as in "ff0080".
 func (c RGBColor) Hex() string {
 	// Add 0.5 for rounding
-	return fmt.Sprintf("#%02x%02x%02x", c[0], c[1], c[2])
+	return fmt.Sprintf("%02x%02x%02x", c[0], c[1], c[2])
 }
 
-// String to color code string
+// String to color code string. eg: "38;2;204;123;56"
 func (c RGBColor) String() string {
 	if c[3] == AsFg {
 		return fmt.Sprintf(TplFgRGB, c[0], c[1], c[2])

color_rgb_test.go

@@ -39,7 +39,7 @@ func TestRGBColor(t *testing.T) {
 	str = c.Sprintf("msg")
 	is.Equal("\x1b[38;2;204;204;204mmsg\x1b[0m", str)
 	is.Equal("[204 204 204]", fmt.Sprint(c.Values()))
-	is.Equal("#cccccc", c.Hex())
+	is.Equal("cccccc", c.Hex())
 
 	// RGBColor.Print
 	c.Print("msg")
@@ -86,11 +86,11 @@ func TestHexToRGB(t *testing.T) {
 	c := HEX("ccc") // rgb: [204 204 204]
 	is.False(c.IsEmpty())
 	is.Equal("38;2;204;204;204", c.String())
-	is.Equal("#cccccc", c.Hex())
+	is.Equal("cccccc", c.Hex())
 
 	c = HEX("aabbcc") // rgb: [170 187 204]
 	is.Equal("38;2;170;187;204", c.String())
-	is.Equal("#aabbcc", c.Hex())
+	is.Equal("aabbcc", c.Hex())
 
 	c = Hex("#aabbcc") // rgb: [170 187 204]
 	is.Equal("38;2;170;187;204", c.String())

detect_env.go

@@ -148,7 +148,6 @@ func detectColorLevelFromEnv(termVal string, isWin bool) (terminfo.ColorLevel, e
 		if ok && v >= 256 {
 			return terminfo.ColorLevelHundreds, nil
 		}
-
 		return fallbackCheckTermValue(termVal)
 	}
 

utils.go

@@ -7,6 +7,26 @@ import (
 	"strings"
 )
 
+// SetTerminal by given code.
+func SetTerminal(code string) error {
+	if !Enable || !SupportColor() {
+		return nil
+	}
+
+	_,err := fmt.Fprintf(output, SettingTpl, code)
+	return err
+}
+
+// ResetTerminal terminal setting.
+func ResetTerminal() error {
+	if !Enable || !SupportColor() {
+		return nil
+	}
+
+	_,err := fmt.Fprint(output, ResetSet)
+	return err
+}
+
 /*************************************************************
  * print methods(will auto parse color tags)
  *************************************************************/