ZacharyZhang-NYandClaude Opus 5.5
03e1f91706
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>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package feedback
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import (
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"strconv"
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"time"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type CountUpOptions struct {
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// Scale is 1–4; zero means 1.
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Scale int
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Slot pixel.Slot
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}
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type countKey struct{}
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// counting runs from one value to the next.
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type counting struct {
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from, to int
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at time.Time
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}
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// CountUp counts to a new value in eight steps.
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func CountUp(c *ui.Context, value int, o CountUpOptions) ui.Element {
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k := pixel.K(c)
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sc := pixel.Or("CountUp Scale", o.Scale, 1)
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e := ui.Box(c).Role(ui.RoleText).Label(strconv.Itoa(value))
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s := ui.Local(e, countKey{}, func() counting { return counting{from: value, to: value} })
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shown := func() int {
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step := 8
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if !k.Reduce() {
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step = k.Since(c, s.at, 15, 8)
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}
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return lerp(s.from, s.to, step)
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}
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if value != s.to {
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s.from, s.to, s.at = shown(), value, k.Now()
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}
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n := strconv.Itoa(shown())
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w := max(pixel.Measure(strconv.Itoa(s.from)), pixel.Measure(strconv.Itoa(s.to)))
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return e.Size(k.D(w*sc), k.D(pixel.LineHeight*sc)).Draw(func(p *ui.Painter, r ui.Rect) {
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k.Canvas(p, r).Text(0, 0, n, o.Slot, sc)
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})
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}
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// lerp moves step eighths from a toward b, overflow-free.
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func lerp(a, b, step int) int {
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if b >= a {
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d := uint64(b) - uint64(a)
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return int(uint64(a) + d/8*uint64(step) + d%8*uint64(step)/8)
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}
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d := uint64(a) - uint64(b)
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return int(uint64(a) - (d/8*uint64(step) + d%8*uint64(step)/8))
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}
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