Files
8bitMyGoUI/gallery/registry.go
T
ZacharyZhang-NY 8be66c09f2 Add fx components 291-320 and the home scene; Kit.Shot, Kit.Toward
Palette cycling, sky, sun and moon, clouds, starfield, rain, snow,
petals, leaves, fireflies, waterfall, ocean, campfire, lava, aurora,
lightning, mountains and a season scene; scanlines, vignette, screen
shake, flash, dither fades, iris wipes, dissolves, mosaics, glitches,
sparkles, explosions and confetti. Home opens on a live scene in the
palette's season and a strip of all eight palettes.

pixel adds Canvas.Cycled, Sprite.At, SpriteOf, Kit.Toward and
Kit.Shot, which spends a cue under Reduce Motion so it never replays;
display exports Reduce. Gallery grids and the sidebar are one Tab
stop each.
2026-10-12 04:05:25 -04:00

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// Package gallery shows every component live, in every palette.
package gallery
import (
"embed"
"fmt"
"reflect"
"runtime"
"slices"
"strings"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
// Entry is one page: a component or an engine foundation.
type Entry struct {
// ID is 1–500 for components, 0 for foundations.
ID int
Name, Zh string
Category string
Summary string
Demo func(c *ui.Context, log func(string))
}
type Category struct {
Key, Name, Zh string
Icon *pixel.Sprite
}
var Categories = []Category{
{"foundations", "Foundations", "基础", icon.Palette},
{"layout", "Layout", "布局", icon.Grid},
{"text", "Text", "文字", icon.FileText},
{"display", "Display", "展示", icon.Image},
{"input", "Input", "输入", icon.Edit},
{"feedback", "Feedback", "反馈", icon.Info},
{"navigation", "Navigation", "导航", icon.Map},
{"data", "Data", "数据", icon.List},
{"overlay", "Overlay", "浮层", icon.Copy},
{"datetime", "Date & Time", "日期时间", icon.Calendar},
{"chart", "Chart", "图表", icon.Sort},
{"game", "Game", "游戏", icon.Gamepad},
{"fx", "Effects", "特效", icon.Sparkle},
{"chat", "Chat", "聊天", icon.Chat},
{"media", "Media", "媒体", icon.Music},
{"code", "Code", "代码", icon.Code},
{"account", "Account", "账户", icon.User},
{"files", "Files", "文件", icon.Folder},
{"project", "Project", "项目", icon.Flag},
{"shop", "Shop", "商店", icon.Cart},
{"agent", "Agent", "智能体", icon.Robot},
{"desk", "Desk", "桌面", icon.Save},
{"tabletop", "Tabletop", "桌游", icon.Crown},
}
var entries = slices.Concat(foundationEntries, layoutEntries, textEntries, displayEntries, inputEntries, controlEntries, feedbackEntries, navigationEntries, dataEntries, recordEntries, overlayEntries, popupEntries, datetimeEntries, timeEntries, chartEntries, plotEntries, gameEntries, rpgEntries, screenEntries, lootEntries, fxEntries, screenFxEntries)
func Entries() []Entry { return entries }
func (e Entry) Slug() string {
s := strings.ToLower(strings.ReplaceAll(e.Name, " ", "-"))
if e.ID == 0 {
return s
}
return fmt.Sprintf("%03d-%s", e.ID, s)
}
func (e Entry) Path() string {
if e.ID == 0 {
return "/f/" + e.Slug()
}
return "/c/" + e.Slug()
}
//go:embed demos_*.go
var demoFiles embed.FS
var codes = sources()
// Code is the source of the entry's demo function.
func (e Entry) Code() string {
src, ok := codes[funcName(e.Demo)]
if !ok {
panic("gallery: no source for " + funcName(e.Demo))
}
return src
}
func funcName(f any) string {
n := runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
return n[strings.LastIndex(n, ".")+1:]
}
// sources indexes every top-level demo function by name.
func sources() map[string]string {
files, err := demoFiles.ReadDir(".")
if err != nil {
panic(err)
}
out := map[string]string{}
for _, f := range files {
b, err := demoFiles.ReadFile(f.Name())
if err != nil {
panic(err)
}
for _, part := range strings.Split(string(b), "\nfunc ")[1:] {
end := strings.Index(part, "\n}\n")
if end < 0 {
panic("gallery: unterminated func in " + f.Name())
}
if name := part[:strings.IndexAny(part, "( ")]; name != "" {
out[name] = "func " + part[:end+2]
}
}
}
return out
}