63 lines
1017 B
Go
63 lines
1017 B
Go
package lifx
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import (
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"fmt"
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"strings"
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)
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type (
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Color interface {
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ColorString() string
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}
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)
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type (
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RGBColor struct {
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R, G, B uint8
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}
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HSBKColor struct {
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H, K int16
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S, B float32
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}
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)
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func NewRGBColor(r, g, b uint8) (*RGBColor, error) {
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return &RGBColor{R: r, G: g, B: b}, nil
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}
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func NewHSBKColor() HSBKColor {
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var c HSBKColor
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c.H, c.S, c.B, c.K = -1, -1, -1, -1
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return c
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}
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func (c RGBColor) ColorString() string {
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return fmt.Sprintf("rgb:%d,%d,%d", c.R, c.G, c.B)
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}
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func (c RGBColor) Hex() string {
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return fmt.Sprintf("#%x%x%x", c.R, c.G, c.B)
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}
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func (c HSBKColor) ColorString() string {
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var s []string
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if c.H >= 0 {
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s = append(s, fmt.Sprintf("hue:%d", c.H))
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}
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if c.S >= 0 {
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s = append(s, fmt.Sprintf("saturation:%g", c.S))
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}
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if c.B >= 0 {
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s = append(s, fmt.Sprintf("brightness:%g", c.B))
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}
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if c.K >= 0 {
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s = append(s, fmt.Sprintf("kelvin:%d", c.K))
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}
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return strings.Join(s, " ")
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}
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func (c HSBKColor) MarshalText() ([]byte, error) {
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return []byte(c.ColorString()), nil
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}
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