photoprism/pkg/colors/colors.go

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/*
Package colors provides types and functions for color classification.
Copyright (c) 2018 - 2022 PhotoPrism UG. All rights reserved.
This program is free software: you can redistribute it and/or modify
it under Version 3 of the GNU Affero General Public License (the "AGPL"):
<https://docs.photoprism.app/license/agpl>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
The AGPL is supplemented by our Trademark and Brand Guidelines,
which describe how our Brand Assets may be used:
<https://photoprism.app/trademark>
Feel free to send an email to hello@photoprism.app if you have questions,
want to support our work, or just want to say hello.
Additional information can be found in our Developer Guide:
<https://docs.photoprism.app/developer-guide/>
*/
package colors
import (
"fmt"
"github.com/photoprism/photoprism/pkg/txt"
)
type Color int16
type Colors []Color
const (
Black Color = iota
Grey
Brown
Gold
White
Purple
Blue
Cyan
Teal
Green
Lime
Yellow
Magenta
Orange
Red
Pink
)
var All = Colors{
Purple,
Magenta,
Pink,
Red,
Orange,
Gold,
Yellow,
Lime,
Green,
Teal,
Cyan,
Blue,
Brown,
White,
Grey,
Black,
}
var Names = map[Color]string{
Black: "black", // 0
Grey: "grey", // 1
Brown: "brown", // 2
Gold: "gold", // 3
White: "white", // 4
Purple: "purple", // 5
Blue: "blue", // 6
Cyan: "cyan", // 7
Teal: "teal", // 8
Green: "green", // 9
Lime: "lime", // A
Yellow: "yellow", // B
Magenta: "magenta", // C
Orange: "orange", // D
Red: "red", // E
Pink: "pink", // F
}
var Weights = map[Color]uint16{
Grey: 1,
Black: 2,
Brown: 2,
White: 2,
Blue: 3,
Green: 3,
Purple: 4,
Gold: 4,
Cyan: 4,
Teal: 4,
Orange: 4,
Red: 4,
Pink: 4,
Lime: 5,
Yellow: 5,
Magenta: 5,
}
func (c Color) Name() string {
return Names[c]
}
func (c Color) ID() int16 {
return int16(c)
}
func (c Color) Hex() string {
return fmt.Sprintf("%X", c)
}
func (c Colors) Hex() (result string) {
for _, indexedColor := range c {
result += indexedColor.Hex()
}
return result
}
func (c Colors) List() []map[string]string {
result := make([]map[string]string, 0, len(c))
for _, c := range c {
result = append(result, map[string]string{"Slug": c.Name(), "Name": txt.UpperFirst(c.Name()), "Example": ColorExamples[c]})
}
return result
}