/
color_16.go
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/
color_16.go
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package color
import (
"fmt"
"strconv"
)
// Color Color16, 16 color value type
// 3(2^3=8) OR 4(2^4=16) bite color.
type Color uint8
// Opts basic color options. code: 0 - 9
type Opts []Color
// Add option value
func (o *Opts) Add(ops ...Color) {
for _, op := range ops {
if uint8(op) < 10 {
*o = append(*o, op)
}
}
}
// IsValid options
func (o Opts) IsValid() bool {
return len(o) > 0
}
// IsEmpty options
func (o Opts) IsEmpty() bool {
return len(o) == 0
}
// String options to string. eg: "1;3"
func (o Opts) String() string {
return Colors2code(o...)
}
/*************************************************************
* Basic 16 color definition
*************************************************************/
// Base value for foreground/background color
const (
FgBase uint8 = 30
BgBase uint8 = 40
)
// Foreground colors. basic foreground colors 30 - 37
const (
FgBlack Color = iota + 30
FgRed
FgGreen
FgYellow
FgBlue
FgMagenta // 品红
FgCyan // 青色
FgWhite
// FgDefault revert default FG
FgDefault Color = 39
)
// Extra foreground color 90 - 97(非标准)
const (
FgDarkGray Color = iota + 90 // 亮黑(灰)
FgLightRed
FgLightGreen
FgLightYellow
FgLightBlue
FgLightMagenta
FgLightCyan
FgLightWhite
// FgGray is alias of FgDarkGray
FgGray Color = 90 // 亮黑(灰)
)
// Background colors. basic background colors 40 - 47
const (
BgBlack Color = iota + 40
BgRed
BgGreen
BgYellow // BgBrown like yellow
BgBlue
BgMagenta
BgCyan
BgWhite
// BgDefault revert default BG
BgDefault Color = 49
)
// Extra background color 100 - 107(非标准)
const (
BgDarkGray Color = iota + 100
BgLightRed
BgLightGreen
BgLightYellow
BgLightBlue
BgLightMagenta
BgLightCyan
BgLightWhite
// BgGray is alias of BgDarkGray
BgGray Color = 100
)
// Option settings
const (
OpReset Color = iota // 0 重置所有设置
OpBold // 1 加粗
OpFuzzy // 2 模糊(不是所有的终端仿真器都支持)
OpItalic // 3 斜体(不是所有的终端仿真器都支持)
OpUnderscore // 4 下划线
OpBlink // 5 闪烁
OpFastBlink // 5 快速闪烁(未广泛支持)
OpReverse // 7 颠倒的 交换背景色与前景色
OpConcealed // 8 隐匿的
OpStrikethrough // 9 删除的,删除线(未广泛支持)
)
// There are basic and light foreground color aliases
const (
Red = FgRed
Cyan = FgCyan
Gray = FgDarkGray // is light Black
Blue = FgBlue
Black = FgBlack
Green = FgGreen
White = FgWhite
Yellow = FgYellow
Magenta = FgMagenta
// special
Bold = OpBold
Normal = FgDefault
// extra light
LightRed = FgLightRed
LightCyan = FgLightCyan
LightBlue = FgLightBlue
LightGreen = FgLightGreen
LightWhite = FgLightWhite
LightYellow = FgLightYellow
LightMagenta = FgLightMagenta
)
/*************************************************************
* Color render methods
*************************************************************/
// Text render a text message
func (c Color) Text(message string) string {
return RenderString(c.String(), message)
}
// Render messages by color setting
// Usage:
// green := color.FgGreen.Render
// fmt.Println(green("message"))
func (c Color) Render(a ...interface{}) string {
return RenderCode(c.String(), a...)
}
// Renderln messages by color setting.
// like Println, will add spaces for each argument
// Usage:
// green := color.FgGreen.Renderln
// fmt.Println(green("message"))
func (c Color) Renderln(a ...interface{}) string {
return RenderWithSpaces(c.String(), a...)
}
// Sprint render messages by color setting. is alias of the Render()
func (c Color) Sprint(a ...interface{}) string {
return RenderCode(c.String(), a...)
}
// Sprintf format and render message.
// Usage:
// green := color.Green.Sprintf
// colored := green("message")
func (c Color) Sprintf(format string, args ...interface{}) string {
return RenderString(c.String(), fmt.Sprintf(format, args...))
}
// Print messages.
// Usage:
// color.Green.Print("message")
// OR:
// green := color.FgGreen.Print
// green("message")
func (c Color) Print(args ...interface{}) {
doPrintV2(c.Code(), fmt.Sprint(args...))
}
// Printf format and print messages.
// Usage:
// color.Cyan.Printf("string %s", "arg0")
func (c Color) Printf(format string, a ...interface{}) {
doPrintV2(c.Code(), fmt.Sprintf(format, a...))
}
// Println messages with new line
func (c Color) Println(a ...interface{}) {
doPrintlnV2(c.String(), a)
}
// Light current color. eg: 36(FgCyan) -> 96(FgLightCyan).
// Usage:
// lightCyan := Cyan.Light()
// lightCyan.Print("message")
func (c Color) Light() Color {
val := int(c)
if val >= 30 && val <= 47 {
return Color(uint8(c) + 60)
}
// don't change
return c
}
// Darken current color. eg. 96(FgLightCyan) -> 36(FgCyan)
// Usage:
// cyan := LightCyan.Darken()
// cyan.Print("message")
func (c Color) Darken() Color {
val := int(c)
if val >= 90 && val <= 107 {
return Color(uint8(c) - 60)
}
// don't change
return c
}
// Code convert to code string. eg "35"
func (c Color) Code() string {
// return fmt.Sprintf("%d", c)
return strconv.Itoa(int(c))
}
// String convert to code string. eg "35"
func (c Color) String() string {
// return fmt.Sprintf("%d", c)
return strconv.Itoa(int(c))
}
// IsValid color value
func (c Color) IsValid() bool {
return c < 107
}
/*************************************************************
* basic color maps
*************************************************************/
// FgColors foreground colors map
var FgColors = map[string]Color{
"black": FgBlack,
"red": FgRed,
"green": FgGreen,
"yellow": FgYellow,
"blue": FgBlue,
"magenta": FgMagenta,
"cyan": FgCyan,
"white": FgWhite,
"default": FgDefault,
}
// BgColors background colors map
var BgColors = map[string]Color{
"black": BgBlack,
"red": BgRed,
"green": BgGreen,
"yellow": BgYellow,
"blue": BgBlue,
"magenta": BgMagenta,
"cyan": BgCyan,
"white": BgWhite,
"default": BgDefault,
}
// ExFgColors extra foreground colors map
var ExFgColors = map[string]Color{
"darkGray": FgDarkGray,
"lightRed": FgLightRed,
"lightGreen": FgLightGreen,
"lightYellow": FgLightYellow,
"lightBlue": FgLightBlue,
"lightMagenta": FgLightMagenta,
"lightCyan": FgLightCyan,
"lightWhite": FgLightWhite,
}
// ExBgColors extra background colors map
var ExBgColors = map[string]Color{
"darkGray": BgDarkGray,
"lightRed": BgLightRed,
"lightGreen": BgLightGreen,
"lightYellow": BgLightYellow,
"lightBlue": BgLightBlue,
"lightMagenta": BgLightMagenta,
"lightCyan": BgLightCyan,
"lightWhite": BgLightWhite,
}
// Options color options map
// Deprecated
// NOTICE: please use AllOptions instead.
var Options = AllOptions
// AllOptions color options map
var AllOptions = map[string]Color{
"reset": OpReset,
"bold": OpBold,
"fuzzy": OpFuzzy,
"italic": OpItalic,
"underscore": OpUnderscore,
"blink": OpBlink,
"reverse": OpReverse,
"concealed": OpConcealed,
}