Files
ZacharyZhang-NYandClaude Opus 5.5 03e1f91706 Upgrade MyGo to v0.5.5
Elements are now pass-scoped value handles: tests that read bounds
after a frame bind a ui.Handle. pixel tells frames apart by the build
pass's root, since the Tester clock no longer moves on its own.

Fix the regressions the upgrade brought:
- Clipboard reads in input handlers go through c.Services().
- MyGo notes an overlay's opener after building it, so AutoFocus
  inside lost it; pixel.AutoFocus focuses through a Handle, and
  archtest bans the raw call. Dialogs hand the focus back again.
- Elements around a press stay hovered: Tooltip tells a press-given
  focus by focus arriving under the pointer.
- The web host moves the Tester clock with real time, at most 500 ms
  a call, and gives components the real clock.

The gallery's source index also accepts CRLF checkouts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-17 01:31:08 -04:00

103 lines
2.6 KiB
Go

package code
import (
"fmt"
"log/slog"
"unicode"
"unicode/utf8"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type GlyphMapOptions struct {
Disabled bool
}
type GlyphMapResult struct {
Element ui.Element
Changed bool
}
// GlyphMap pages code points by 128; the chosen shows large.
func GlyphMap(c *ui.Context, text string, at *rune, o GlyphMapOptions) GlyphMapResult {
k := pixel.K(c)
if *at < 0 || *at > unicode.MaxRune {
panic(fmt.Sprintf("code: GlyphMap at %U", *at))
}
old := *at
var res GlyphMapResult
res.Element = ui.Row(c).Gap(k.D(8)).AlignItems(ui.Start).Children(func() {
page := *at &^ 127
cur := int(*at - page)
shell, base, st, _ := pixel.Pad(c, text, 16, 128, 14, 14, &cur, o.Disabled)
*at = page + rune(cur)
// PageUp and PageDown turn a page, keeping the column.
if !base.IsDisabled() {
if pixel.Shortcut(base, 0, ui.KeyPageUp) && *at >= 128 {
*at -= 128
}
if pixel.Shortcut(base, 0, ui.KeyPageDown) && *at+128 <= unicode.MaxRune {
*at += 128
}
}
base.Description(name(*at))
shown := *at
shell.Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
first := shown &^ 127
for i := range 128 {
x, y, r := i%16*14, i/16*14, first+rune(i)
ink := pixel.Ink
if r == shown {
g.Rect(x, y, 14, 14, pixel.Accent)
ink = pixel.AccentInk
}
if drawn(r) {
s := string(r)
g.Text(x+(14-pixel.Measure(s))/2, y+1, s, ink, 1)
} else {
g.Dot(x+7, y+7, pixel.Faint)
}
}
g.Finish(st)
})
ui.Column(c).Gap(k.D(3)).AlignItems(ui.Center).Children(func() {
ui.Box(c).Size(k.D(48), k.D(48)).Role(ui.RoleImage).Label(name(shown)).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
g.Frame(0, 0, 48, 48, pixel.Sunken, pixel.Well)
if drawn(shown) {
s := string(shown)
g.Text(24-pixel.Measure(s)*3/2, 6, s, pixel.Ink, 3)
}
})
code := fmt.Sprintf("U+%04X", shown)
slot := pixel.Ink
if !pixel.Has(shown) {
slot = pixel.Bad
}
ui.Box(c).Size(k.D(pixel.MicroWidth(code)), k.D(5)).Draw(func(p *ui.Painter, r ui.Rect) {
k.Canvas(p, r).Micro(0, 0, code, slot, 1)
})
})
})
if res.Changed = *at != old; res.Changed {
slog.Debug("8bit: glyph map", "label", text, "at", fmt.Sprintf("%U", *at))
}
return res
}
// drawn is a graphic rune the font holds.
func drawn(r rune) bool {
return utf8.ValidRune(r) && (unicode.IsGraphic(r) || r == ' ') && pixel.Has(r)
}
// name reads a code point aloud, with its glyph.
func name(r rune) string {
if drawn(r) {
return fmt.Sprintf("%U %c", r, r)
}
return fmt.Sprintf("%U", r)
}