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Better builtin avatar generator #17707

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merged 11 commits into from
Nov 19, 2021
Merged

Better builtin avatar generator #17707

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57e210b
better builtin avatar generator
wxiaoguang Nov 18, 2021
7553b6b
add more license text
wxiaoguang Nov 18, 2021
ce1409c
Merge branch 'main' into refactor-avatar
wxiaoguang Nov 19, 2021
ecd71a4
Merge branch 'main' into refactor-avatar
wxiaoguang Nov 19, 2021
19fa794
Merge branch 'main' into refactor-avatar
wxiaoguang Nov 19, 2021
c413327
Merge branch 'main' into refactor-avatar
wxiaoguang Nov 19, 2021
27b5823
Update modules/avatar/identicon/identicon.go
wxiaoguang Nov 19, 2021
be178dc
Update modules/avatar/identicon/identicon.go
wxiaoguang Nov 19, 2021
45fc6d2
Update modules/avatar/identicon/polygon.go
wxiaoguang Nov 19, 2021
f791dbf
Fix by reviews.
wxiaoguang Nov 19, 2021
7e9bfbd
Merge branch 'main' into refactor-avatar
wxiaoguang Nov 19, 2021
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4 changes: 2 additions & 2 deletions build/codeformat/formatimports_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ import (
"bytes"
"fmt"
"image"
"image/color/palette"
"image/color"

_ "image/gif" // for processing gif images
_ "image/jpeg" // for processing jpeg images
Expand All @@ -76,7 +76,7 @@ import (
"bytes"
"fmt"
"image"
"image/color/palette"
"image/color"

_ "image/gif" // for processing gif images
_ "image/jpeg" // for processing jpeg images
Expand Down
1 change: 0 additions & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,6 @@ require (
github.com/hashicorp/go-version v1.3.1
github.com/hashicorp/golang-lru v0.5.4
github.com/huandu/xstrings v1.3.2
github.com/issue9/identicon v1.2.0
github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7
github.com/json-iterator/go v1.1.11
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
Expand Down
4 changes: 0 additions & 4 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -661,10 +661,6 @@ github.com/imdario/mergo v0.3.12 h1:b6R2BslTbIEToALKP7LxUvijTsNI9TAe80pLWN2g/HU=
github.com/imdario/mergo v0.3.12/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod h1:qj24IKcXYK6Iy9ceXlo3Tc+vtHo9lIhSX5JddghvEPo=
github.com/issue9/assert v1.4.1 h1:gUtOpMTeaE4JTe9kACma5foOHBvVt1p5XTFrULDwdXI=
github.com/issue9/assert v1.4.1/go.mod h1:Yktk83hAVl1SPSYtd9kjhBizuiBIqUQyj+D5SE2yjVY=
github.com/issue9/identicon v1.2.0 h1:ek+UcTTyMW/G0iNbLOAlrPC13eSzXTWhbJSs8PHhHGQ=
github.com/issue9/identicon v1.2.0/go.mod h1:A9toNT0ky/1WP5iNFyDmrkNiYH6eX3HcN5V6uH0g0ec=
github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
Expand Down
21 changes: 4 additions & 17 deletions modules/avatar/avatar.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,16 +8,15 @@ import (
"bytes"
"fmt"
"image"
"image/color/palette"
"image/color"

_ "image/gif" // for processing gif images
_ "image/jpeg" // for processing jpeg images
_ "image/png" // for processing png images

"code.gitea.io/gitea/modules/avatar/identicon"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"

"github.com/issue9/identicon"
"github.com/nfnt/resize"
"github.com/oliamb/cutter"
)
Expand All @@ -28,20 +27,8 @@ const AvatarSize = 290
// RandomImageSize 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
integer, err := util.RandomInt(int64(randExtent))
if err != nil {
return nil, fmt.Errorf("util.RandomInt: %v", err)
}
colorIndex := int(integer)
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]...)
// we use white as background, and use dark colors to draw blocks
imgMaker, err := identicon.New(size, color.White, identicon.DarkColors...)
if err != nil {
return nil, fmt.Errorf("identicon.New: %v", err)
}
Expand Down
45 changes: 23 additions & 22 deletions vendor/github.com/issue9/identicon/block.go → modules/avatar/identicon/block.go
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Original file line number Diff line number Diff line change
@@ -1,25 +1,26 @@
// SPDX-License-Identifier: MIT
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

// Copied and modified from https://github.com/issue9/identicon/ (MIT License)

package identicon

import "image"

var (
// 可以出现在中间的方块，一般为了美观，都是对称图像。
// the blocks can appear in center, these blocks can be more beautiful
centerBlocks = []blockFunc{b0, b1, b2, b3, b19, b26, b27}

// 所有方块
// all blocks
blocks = []blockFunc{b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20, b21, b22, b23, b24, b25, b26, b27}
)

// 所有 block 函数的类型
type blockFunc func(img *image.Paletted, x, y, size int, angle int)

// 将多边形 points 旋转 angle 个角度，然后输出到 img 上，起点为 x,y 坐标
//
// points 中的坐标是基于左上角是原点的坐标系。
// draw a polygon by points, and the polygon is rotated by angle.
func drawBlock(img *image.Paletted, x, y, size int, angle int, points []int) {
if angle > 0 { // 0 角度不需要转换
if angle > 0 {
m := size / 2
rotate(points, m, m, angle)
}
Expand All @@ -33,7 +34,7 @@ func drawBlock(img *image.Paletted, x, y, size int, angle int, points []int) {
}
}

// 全空白
// blank
//
// --------
// | |
Expand All @@ -42,7 +43,7 @@ func drawBlock(img *image.Paletted, x, y, size int, angle int, points []int) {
// --------
func b0(img *image.Paletted, x, y, size int, angle int) {}

// 全填充正方形
// full-filled
//
// --------
// |######|
Expand All @@ -57,7 +58,7 @@ func b1(img *image.Paletted, x, y, size int, angle int) {
}
}

// 中间小方块
// a small block
// ----------
// | |
// | #### |
Expand All @@ -66,8 +67,8 @@ func b1(img *image.Paletted, x, y, size int, angle int) {
// ----------
func b2(img *image.Paletted, x, y, size int, angle int) {
l := size / 4
x = x + l
y = y + l
x += l
y += l

for i := x; i < x+2*l; i++ {
for j := y; j < y+2*l; j++ {
Expand All @@ -76,7 +77,7 @@ func b2(img *image.Paletted, x, y, size int, angle int) {
}
}

// 菱形
// diamond
//
// ---------
// | # |
Expand Down Expand Up @@ -133,7 +134,7 @@ func b5(img *image.Paletted, x, y, size int, angle int) {
})
}

// b6 矩形
// b6
//
// --------
// |### |
Expand All @@ -151,7 +152,7 @@ func b6(img *image.Paletted, x, y, size int, angle int) {
})
}

// b7 斜放的锥形
// b7 italic cone
//
// ---------
// | # |
Expand All @@ -170,7 +171,7 @@ func b7(img *image.Paletted, x, y, size int, angle int) {
})
}

// b8 三个堆叠的三角形
// b8 three small triangles
//
// -----------
// | # |
Expand All @@ -184,23 +185,23 @@ func b8(img *image.Paletted, x, y, size int, angle int) {
m := size / 2
mm := m / 2

// 顶部三角形
// top
drawBlock(img, x, y, size, angle, []int{
m, 0,
3 * mm, m,
mm, m,
m, 0,
})

// 底下左边
// bottom left
drawBlock(img, x, y, size, angle, []int{
mm, m,
m, size,
0, size,
mm, m,
})

// 底下右边
// bottom right
drawBlock(img, x, y, size, angle, []int{
3 * mm, m,
size, size,
Expand All @@ -209,7 +210,7 @@ func b8(img *image.Paletted, x, y, size int, angle int) {
})
}

// b9 斜靠的三角形
// b9 italic triangle
//
// ---------
// |# |
Expand Down Expand Up @@ -257,7 +258,7 @@ func b10(img *image.Paletted, x, y, size int, angle int) {
})
}

// b11 左上角1/4大小的方块
// b11
//
// ----------
// |#### |
Expand Down
135 changes: 135 additions & 0 deletions modules/avatar/identicon/colors.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,135 @@
// Copyright 2021 The Gitea 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 identicon

import "image/color"

// DarkColors are dark colors for avatar blocks, they come from image/color/palette.WebSafe, and light colors (0xff) are removed
var DarkColors = []color.Color{
color.RGBA{0x00, 0x00, 0x33, 0xff},
color.RGBA{0x00, 0x00, 0x66, 0xff},
color.RGBA{0x00, 0x00, 0x99, 0xff},
color.RGBA{0x00, 0x00, 0xcc, 0xff},
color.RGBA{0x00, 0x33, 0x00, 0xff},
color.RGBA{0x00, 0x33, 0x33, 0xff},
color.RGBA{0x00, 0x33, 0x66, 0xff},
color.RGBA{0x00, 0x33, 0x99, 0xff},
color.RGBA{0x00, 0x33, 0xcc, 0xff},
color.RGBA{0x00, 0x66, 0x00, 0xff},
color.RGBA{0x00, 0x66, 0x33, 0xff},
color.RGBA{0x00, 0x66, 0x66, 0xff},
color.RGBA{0x00, 0x66, 0x99, 0xff},
color.RGBA{0x00, 0x66, 0xcc, 0xff},
color.RGBA{0x00, 0x99, 0x00, 0xff},
color.RGBA{0x00, 0x99, 0x33, 0xff},
color.RGBA{0x00, 0x99, 0x66, 0xff},
color.RGBA{0x00, 0x99, 0x99, 0xff},
color.RGBA{0x00, 0x99, 0xcc, 0xff},
color.RGBA{0x00, 0xcc, 0x00, 0xff},
color.RGBA{0x00, 0xcc, 0x33, 0xff},
color.RGBA{0x00, 0xcc, 0x66, 0xff},
color.RGBA{0x00, 0xcc, 0x99, 0xff},
color.RGBA{0x00, 0xcc, 0xcc, 0xff},
color.RGBA{0x33, 0x00, 0x00, 0xff},
color.RGBA{0x33, 0x00, 0x33, 0xff},
color.RGBA{0x33, 0x00, 0x66, 0xff},
color.RGBA{0x33, 0x00, 0x99, 0xff},
color.RGBA{0x33, 0x00, 0xcc, 0xff},
color.RGBA{0x33, 0x33, 0x00, 0xff},
color.RGBA{0x33, 0x33, 0x33, 0xff},
color.RGBA{0x33, 0x33, 0x66, 0xff},
color.RGBA{0x33, 0x33, 0x99, 0xff},
color.RGBA{0x33, 0x33, 0xcc, 0xff},
color.RGBA{0x33, 0x66, 0x00, 0xff},
color.RGBA{0x33, 0x66, 0x33, 0xff},
color.RGBA{0x33, 0x66, 0x66, 0xff},
color.RGBA{0x33, 0x66, 0x99, 0xff},
color.RGBA{0x33, 0x66, 0xcc, 0xff},
color.RGBA{0x33, 0x99, 0x00, 0xff},
color.RGBA{0x33, 0x99, 0x33, 0xff},
color.RGBA{0x33, 0x99, 0x66, 0xff},
color.RGBA{0x33, 0x99, 0x99, 0xff},
color.RGBA{0x33, 0x99, 0xcc, 0xff},
color.RGBA{0x33, 0xcc, 0x00, 0xff},
color.RGBA{0x33, 0xcc, 0x33, 0xff},
color.RGBA{0x33, 0xcc, 0x66, 0xff},
color.RGBA{0x33, 0xcc, 0x99, 0xff},
color.RGBA{0x33, 0xcc, 0xcc, 0xff},
color.RGBA{0x66, 0x00, 0x00, 0xff},
color.RGBA{0x66, 0x00, 0x33, 0xff},
color.RGBA{0x66, 0x00, 0x66, 0xff},
color.RGBA{0x66, 0x00, 0x99, 0xff},
color.RGBA{0x66, 0x00, 0xcc, 0xff},
color.RGBA{0x66, 0x33, 0x00, 0xff},
color.RGBA{0x66, 0x33, 0x33, 0xff},
color.RGBA{0x66, 0x33, 0x66, 0xff},
color.RGBA{0x66, 0x33, 0x99, 0xff},
color.RGBA{0x66, 0x33, 0xcc, 0xff},
color.RGBA{0x66, 0x66, 0x00, 0xff},
color.RGBA{0x66, 0x66, 0x33, 0xff},
color.RGBA{0x66, 0x66, 0x66, 0xff},
color.RGBA{0x66, 0x66, 0x99, 0xff},
color.RGBA{0x66, 0x66, 0xcc, 0xff},
color.RGBA{0x66, 0x99, 0x00, 0xff},
color.RGBA{0x66, 0x99, 0x33, 0xff},
color.RGBA{0x66, 0x99, 0x66, 0xff},
color.RGBA{0x66, 0x99, 0x99, 0xff},
color.RGBA{0x66, 0x99, 0xcc, 0xff},
color.RGBA{0x66, 0xcc, 0x00, 0xff},
color.RGBA{0x66, 0xcc, 0x33, 0xff},
color.RGBA{0x66, 0xcc, 0x66, 0xff},
color.RGBA{0x66, 0xcc, 0x99, 0xff},
color.RGBA{0x66, 0xcc, 0xcc, 0xff},
color.RGBA{0x99, 0x00, 0x00, 0xff},
color.RGBA{0x99, 0x00, 0x33, 0xff},
color.RGBA{0x99, 0x00, 0x66, 0xff},
color.RGBA{0x99, 0x00, 0x99, 0xff},
color.RGBA{0x99, 0x00, 0xcc, 0xff},
color.RGBA{0x99, 0x33, 0x00, 0xff},
color.RGBA{0x99, 0x33, 0x33, 0xff},
color.RGBA{0x99, 0x33, 0x66, 0xff},
color.RGBA{0x99, 0x33, 0x99, 0xff},
color.RGBA{0x99, 0x33, 0xcc, 0xff},
color.RGBA{0x99, 0x66, 0x00, 0xff},
color.RGBA{0x99, 0x66, 0x33, 0xff},
color.RGBA{0x99, 0x66, 0x66, 0xff},
color.RGBA{0x99, 0x66, 0x99, 0xff},
color.RGBA{0x99, 0x66, 0xcc, 0xff},
color.RGBA{0x99, 0x99, 0x00, 0xff},
color.RGBA{0x99, 0x99, 0x33, 0xff},
color.RGBA{0x99, 0x99, 0x66, 0xff},
color.RGBA{0x99, 0x99, 0x99, 0xff},
color.RGBA{0x99, 0x99, 0xcc, 0xff},
color.RGBA{0x99, 0xcc, 0x00, 0xff},
color.RGBA{0x99, 0xcc, 0x33, 0xff},
color.RGBA{0x99, 0xcc, 0x66, 0xff},
color.RGBA{0x99, 0xcc, 0x99, 0xff},
color.RGBA{0x99, 0xcc, 0xcc, 0xff},
color.RGBA{0xcc, 0x00, 0x00, 0xff},
color.RGBA{0xcc, 0x00, 0x33, 0xff},
color.RGBA{0xcc, 0x00, 0x66, 0xff},
color.RGBA{0xcc, 0x00, 0x99, 0xff},
color.RGBA{0xcc, 0x00, 0xcc, 0xff},
color.RGBA{0xcc, 0x33, 0x00, 0xff},
color.RGBA{0xcc, 0x33, 0x33, 0xff},
color.RGBA{0xcc, 0x33, 0x66, 0xff},
color.RGBA{0xcc, 0x33, 0x99, 0xff},
color.RGBA{0xcc, 0x33, 0xcc, 0xff},
color.RGBA{0xcc, 0x66, 0x00, 0xff},
color.RGBA{0xcc, 0x66, 0x33, 0xff},
color.RGBA{0xcc, 0x66, 0x66, 0xff},
color.RGBA{0xcc, 0x66, 0x99, 0xff},
color.RGBA{0xcc, 0x66, 0xcc, 0xff},
color.RGBA{0xcc, 0x99, 0x00, 0xff},
color.RGBA{0xcc, 0x99, 0x33, 0xff},
color.RGBA{0xcc, 0x99, 0x66, 0xff},
color.RGBA{0xcc, 0x99, 0x99, 0xff},
color.RGBA{0xcc, 0x99, 0xcc, 0xff},
color.RGBA{0xcc, 0xcc, 0x00, 0xff},
color.RGBA{0xcc, 0xcc, 0x33, 0xff},
color.RGBA{0xcc, 0xcc, 0x66, 0xff},
color.RGBA{0xcc, 0xcc, 0x99, 0xff},
color.RGBA{0xcc, 0xcc, 0xcc, 0xff},
}
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