mirror of
https://codeberg.org/forgejo/forgejo
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792b4dba2c
* update github.com/blevesearch/bleve v2.0.2 -> v2.0.3 * github.com/denisenkom/go-mssqldb v0.9.0 -> v0.10.0 * github.com/editorconfig/editorconfig-core-go v2.4.1 -> v2.4.2 * github.com/go-chi/cors v1.1.1 -> v1.2.0 * github.com/go-git/go-billy v5.0.0 -> v5.1.0 * github.com/go-git/go-git v5.2.0 -> v5.3.0 * github.com/go-ldap/ldap v3.2.4 -> v3.3.0 * github.com/go-redis/redis v8.6.0 -> v8.8.2 * github.com/go-sql-driver/mysql v1.5.0 -> v1.6.0 * github.com/go-swagger/go-swagger v0.26.1 -> v0.27.0 * github.com/lib/pq v1.9.0 -> v1.10.1 * github.com/mattn/go-sqlite3 v1.14.6 -> v1.14.7 * github.com/go-testfixtures/testfixtures v3.5.0 -> v3.6.0 * github.com/issue9/identicon v1.0.1 -> v1.2.0 * github.com/klauspost/compress v1.11.8 -> v1.12.1 * github.com/mgechev/revive v1.0.3 -> v1.0.6 * github.com/microcosm-cc/bluemonday v1.0.7 -> v1.0.8 * github.com/niklasfasching/go-org v1.4.0 -> v1.5.0 * github.com/olivere/elastic v7.0.22 -> v7.0.24 * github.com/pelletier/go-toml v1.8.1 -> v1.9.0 * github.com/prometheus/client_golang v1.9.0 -> v1.10.0 * github.com/xanzy/go-gitlab v0.44.0 -> v0.48.0 * github.com/yuin/goldmark v1.3.3 -> v1.3.5 * github.com/6543/go-version v1.2.4 -> v1.3.1 * do github.com/lib/pq v1.10.0 -> v1.10.1 again ...
717 lines
10 KiB
Go
Vendored
717 lines
10 KiB
Go
Vendored
// SPDX-License-Identifier: MIT
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package identicon
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import "image"
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var (
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// 可以出现在中间的方块，一般为了美观，都是对称图像。
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centerBlocks = []blockFunc{b0, b1, b2, b3, b19, b26, b27}
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// 所有方块
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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}
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)
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// 所有 block 函数的类型
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type blockFunc func(img *image.Paletted, x, y, size int, angle int)
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// 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
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//
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// points 中的坐标是基于左上角是原点的坐标系。
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func drawBlock(img *image.Paletted, x, y, size int, angle int, points []int) {
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if angle > 0 { // 0 角度不需要转换
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m := size / 2
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rotate(points, m, m, angle)
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}
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for i := 0; i < size; i++ {
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for j := 0; j < size; j++ {
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if pointInPolygon(i, j, points) {
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img.SetColorIndex(x+i, y+j, 1)
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}
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}
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}
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}
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// 全空白
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//
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// --------
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// | |
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// | |
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// | |
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// --------
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func b0(img *image.Paletted, x, y, size int, angle int) {}
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// 全填充正方形
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//
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// --------
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// |######|
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// |######|
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// |######|
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// --------
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func b1(img *image.Paletted, x, y, size int, angle int) {
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for i := x; i < x+size; i++ {
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for j := y; j < y+size; j++ {
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img.SetColorIndex(i, j, 1)
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}
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}
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}
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// 中间小方块
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// ----------
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// | |
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// | #### |
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// | #### |
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// | |
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// ----------
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func b2(img *image.Paletted, x, y, size int, angle int) {
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l := size / 4
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x = x + l
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y = y + l
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for i := x; i < x+2*l; i++ {
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for j := y; j < y+2*l; j++ {
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img.SetColorIndex(i, j, 1)
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}
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}
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}
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// 菱形
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//
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// ---------
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// | # |
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// | ### |
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// | ##### |
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// |#######|
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// | ##### |
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// | ### |
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// | # |
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// ---------
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func b3(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, 0, []int{
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m, 0,
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size, m,
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m, size,
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0, m,
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m, 0,
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})
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}
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// b4
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//
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// -------
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// |#####|
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// |#### |
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// |### |
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// |## |
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// |# |
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// |------
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func b4(img *image.Paletted, x, y, size int, angle int) {
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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size, 0,
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0, size,
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0, 0,
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})
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}
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// b5
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//
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// ---------
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// | # |
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// | ### |
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// | ##### |
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// |#######|
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func b5(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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size, size,
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0, size,
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m, 0,
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})
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}
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// b6 矩形
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//
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// --------
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// |### |
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// |### |
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// |### |
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// --------
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func b6(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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m, size,
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0, size,
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0, 0,
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})
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}
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// b7 斜放的锥形
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//
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// ---------
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// | # |
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// | ## |
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// | #####|
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// | ####|
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// |--------
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func b7(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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size, m,
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size, size,
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m, size,
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0, 0,
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})
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}
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// b8 三个堆叠的三角形
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//
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// -----------
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// | # |
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// | ### |
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// | ##### |
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// | # # |
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// | ### ### |
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// |#########|
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// -----------
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func b8(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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mm := m / 2
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// 顶部三角形
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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3 * mm, m,
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mm, m,
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m, 0,
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})
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// 底下左边
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drawBlock(img, x, y, size, angle, []int{
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mm, m,
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m, size,
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0, size,
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mm, m,
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})
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// 底下右边
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drawBlock(img, x, y, size, angle, []int{
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3 * mm, m,
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size, size,
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m, size,
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3 * mm, m,
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})
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}
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// b9 斜靠的三角形
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//
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// ---------
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// |# |
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// | #### |
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// | #####|
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// | #### |
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// | # |
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// ---------
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func b9(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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size, m,
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m, size,
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0, 0,
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})
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}
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// b10
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//
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// ----------
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// | ####|
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// | ### |
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// | ## |
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// | # |
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// |#### |
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// |### |
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// |## |
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// |# |
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// ----------
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func b10(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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size, 0,
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m, m,
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m, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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0, m,
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m, m,
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0, size,
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0, m,
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})
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}
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// b11 左上角1/4大小的方块
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//
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// ----------
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// |#### |
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// |#### |
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// |#### |
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// | |
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// | |
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// ----------
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func b11(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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m, m,
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0, m,
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0, 0,
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})
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}
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// b12
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//
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// -----------
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// | |
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// | |
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// |#########|
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// | ##### |
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// | # |
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// -----------
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func b12(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, m,
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size, m,
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m, size,
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0, m,
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})
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}
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// b13
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//
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// -----------
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// | |
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// | |
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// | # |
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// | ##### |
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// |#########|
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// -----------
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func b13(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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m, m,
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size, size,
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0, size,
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m, m,
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})
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}
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// b14
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//
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// ---------
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// | # |
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// | ### |
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// |#### |
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// | |
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// | |
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// ---------
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func b14(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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m, m,
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0, m,
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m, 0,
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})
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}
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// b15
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//
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// ----------
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// |##### |
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// |### |
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// |# |
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// | |
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// | |
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// ----------
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func b15(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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0, m,
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0, 0,
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})
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}
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// b16
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//
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// ---------
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// | # |
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// | ##### |
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// |#######|
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// | # |
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// | ##### |
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// |#######|
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// ---------
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func b16(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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size, m,
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0, m,
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m, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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m, m,
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size, size,
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0, size,
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m, m,
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})
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}
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// b17
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//
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// ----------
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// |##### |
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// |### |
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// |# |
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// | ##|
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// | ##|
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// ----------
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func b17(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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0, m,
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0, 0,
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})
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quarter := size / 4
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drawBlock(img, x, y, size, angle, []int{
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size - quarter, size - quarter,
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size, size - quarter,
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size, size,
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size - quarter, size,
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size - quarter, size - quarter,
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})
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}
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// b18
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//
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// ----------
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// |##### |
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// |#### |
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// |### |
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// |## |
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// |# |
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// ----------
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func b18(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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0, size,
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0, 0,
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})
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}
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// b19
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//
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// ----------
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// |########|
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// |### ###|
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// |# #|
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// |### ###|
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// |########|
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// ----------
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func b19(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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drawBlock(img, x, y, size, angle, []int{
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0, 0,
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m, 0,
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0, m,
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0, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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m, 0,
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size, 0,
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size, m,
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m, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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size, m,
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size, size,
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m, size,
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size, m,
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})
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drawBlock(img, x, y, size, angle, []int{
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0, m,
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m, size,
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0, size,
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0, m,
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})
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}
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// b20
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//
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// ----------
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// | ## |
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// |### |
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// |## |
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// |## |
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// |# |
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// ----------
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func b20(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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q := size / 4
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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0, size,
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0, m,
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q, 0,
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})
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}
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// b21
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//
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// ----------
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// | #### |
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// |## #####|
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// |## ##|
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// |## |
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// |# |
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// ----------
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func b21(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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q := size / 4
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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0, size,
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0, m,
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q, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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size, q,
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size, m,
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q, 0,
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})
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}
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// b22
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//
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// ----------
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// | #### |
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// |## ### |
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// |## ##|
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// |## ##|
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// |# #|
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// ----------
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func b22(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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q := size / 4
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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0, size,
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0, m,
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q, 0,
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})
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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size, q,
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size, size,
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q, 0,
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})
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}
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// b23
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//
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// ----------
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// | #######|
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// |### #|
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// |## |
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// |## |
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// |# |
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// ----------
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func b23(img *image.Paletted, x, y, size int, angle int) {
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m := size / 2
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q := size / 4
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drawBlock(img, x, y, size, angle, []int{
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q, 0,
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0, size,
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0, m,
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q, 0,
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})
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|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
q, 0,
|
|
size, 0,
|
|
size, q,
|
|
q, 0,
|
|
})
|
|
}
|
|
|
|
// b24
|
|
//
|
|
// ----------
|
|
// | ## ###|
|
|
// |### ###|
|
|
// |## ## |
|
|
// |## ## |
|
|
// |# # |
|
|
// ----------
|
|
func b24(img *image.Paletted, x, y, size int, angle int) {
|
|
m := size / 2
|
|
q := size / 4
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
q, 0,
|
|
0, size,
|
|
0, m,
|
|
q, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
m, 0,
|
|
size, 0,
|
|
m, size,
|
|
m, 0,
|
|
})
|
|
}
|
|
|
|
// b25
|
|
//
|
|
// ----------
|
|
// |# #|
|
|
// |## ###|
|
|
// |## ## |
|
|
// |###### |
|
|
// |#### |
|
|
// ----------
|
|
func b25(img *image.Paletted, x, y, size int, angle int) {
|
|
m := size / 2
|
|
q := size / 4
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, 0,
|
|
0, size,
|
|
q, size,
|
|
0, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, m,
|
|
size, 0,
|
|
q, size,
|
|
0, m,
|
|
})
|
|
}
|
|
|
|
// b26
|
|
//
|
|
// ----------
|
|
// |# #|
|
|
// |### ###|
|
|
// | #### |
|
|
// |### ###|
|
|
// |# #|
|
|
// ----------
|
|
func b26(img *image.Paletted, x, y, size int, angle int) {
|
|
m := size / 2
|
|
q := size / 4
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, 0,
|
|
m, q,
|
|
q, m,
|
|
0, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
size, 0,
|
|
m + q, m,
|
|
m, q,
|
|
size, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
size, size,
|
|
m, m + q,
|
|
q + m, m,
|
|
size, size,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, size,
|
|
q, m,
|
|
m, q + m,
|
|
0, size,
|
|
})
|
|
}
|
|
|
|
// b27
|
|
//
|
|
// ----------
|
|
// |########|
|
|
// |## ###|
|
|
// |# #|
|
|
// |### ##|
|
|
// |########|
|
|
// ----------
|
|
func b27(img *image.Paletted, x, y, size int, angle int) {
|
|
m := size / 2
|
|
q := size / 4
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, 0,
|
|
size, 0,
|
|
0, q,
|
|
0, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
q + m, 0,
|
|
size, 0,
|
|
size, size,
|
|
q + m, 0,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
size, q + m,
|
|
size, size,
|
|
0, size,
|
|
size, q + m,
|
|
})
|
|
|
|
drawBlock(img, x, y, size, angle, []int{
|
|
0, size,
|
|
0, 0,
|
|
q, size,
|
|
0, size,
|
|
})
|
|
}
|