mirror of https://github.com/gogits/gogs.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.2 KiB
43 lines
1.2 KiB
// Copyright 2014 The Gogs Authors. All rights reserved. |
|
// Use of this source code is governed by a MIT-style |
|
// license that can be found in the LICENSE file. |
|
|
|
package avatar |
|
|
|
import ( |
|
"fmt" |
|
"image" |
|
"image/color/palette" |
|
"math/rand" |
|
"time" |
|
|
|
"github.com/issue9/identicon" |
|
) |
|
|
|
const AVATAR_SIZE = 290 |
|
|
|
// RandomImage generates and returns a random avatar image unique to input data |
|
// in custom size (height and width). |
|
func RandomImageSize(size int, data []byte) (image.Image, error) { |
|
randExtent := len(palette.WebSafe) - 32 |
|
rand.Seed(time.Now().UnixNano()) |
|
colorIndex := rand.Intn(randExtent) |
|
backColorIndex := colorIndex - 1 |
|
if backColorIndex < 0 { |
|
backColorIndex = randExtent - 1 |
|
} |
|
|
|
// Define size, background, and forecolor |
|
imgMaker, err := identicon.New(size, |
|
palette.WebSafe[backColorIndex], palette.WebSafe[colorIndex:colorIndex+32]...) |
|
if err != nil { |
|
return nil, fmt.Errorf("identicon.New: %v", err) |
|
} |
|
return imgMaker.Make(data), nil |
|
} |
|
|
|
// RandomImage generates and returns a random avatar image unique to input data |
|
// in default size (height and width). |
|
func RandomImage(data []byte) (image.Image, error) { |
|
return RandomImageSize(AVATAR_SIZE, data) |
|
}
|
|
|