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>
84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package chart
|
||
|
||
import (
|
||
"fmt"
|
||
"time"
|
||
|
||
"github.com/egoist/mygo/ui"
|
||
|
||
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
||
)
|
||
|
||
type SpectrumBarsOptions struct {
|
||
// Segments is each bar's height in blocks; zero means 10.
|
||
Segments int
|
||
}
|
||
|
||
type peaksKey struct{}
|
||
|
||
// peaks are the falling dots, when built last, whether falling.
|
||
type peaks struct {
|
||
at []float64
|
||
last time.Time
|
||
moving bool
|
||
}
|
||
|
||
// SpectrumBars lights segmented bars; peak dots fall behind them.
|
||
func SpectrumBars(c *ui.Context, text string, levels []float64, o SpectrumBarsOptions) ui.Element {
|
||
k := pixel.K(c)
|
||
n := pixel.Or("SpectrumBars Segments", o.Segments, 10)
|
||
for _, l := range levels {
|
||
if !(l >= 0 && l <= 1) {
|
||
panic(fmt.Sprintf("chart: SpectrumBars level %v outside 0–1", l))
|
||
}
|
||
}
|
||
e := ui.Box(c).Size(k.D(len(levels)*6), k.D(n*3)).Role(ui.RoleImage).Label(text).Description(nums(levels))
|
||
pk := ui.Local(e, peaksKey{}, func() peaks { return peaks{} })
|
||
if len(pk.at) != len(levels) {
|
||
pk.at = append([]float64(nil), levels...)
|
||
}
|
||
// Peaks fall a bar a second, stepped; reduced, they rest.
|
||
now := k.Now().Truncate(time.Second / 15)
|
||
fall := max(0, now.Sub(pk.last).Seconds())
|
||
switch {
|
||
case pk.last.IsZero() || k.Reduce():
|
||
fall = 1
|
||
case !pk.moving:
|
||
// Resting peaks start falling now, not at the last build.
|
||
fall = 0
|
||
}
|
||
pk.last, pk.moving = now, false
|
||
for i, l := range levels {
|
||
pk.at[i] = max(l, pk.at[i]-fall)
|
||
pk.moving = pk.moving || pk.at[i] > l
|
||
}
|
||
if pk.moving {
|
||
k.Tick(c, 15)
|
||
}
|
||
shown := append([]float64(nil), pk.at...)
|
||
return e.Draw(func(p *ui.Painter, r ui.Rect) {
|
||
g := k.Canvas(p, r)
|
||
for i, l := range levels {
|
||
lit := int(l*float64(n) + 0.5)
|
||
for s := range n {
|
||
y := (n - 1 - s) * 3
|
||
ink := pixel.Good
|
||
switch {
|
||
case s >= n*8/10:
|
||
ink = pixel.Bad
|
||
case s >= n*6/10:
|
||
ink = pixel.Warn
|
||
}
|
||
if s < lit {
|
||
g.Rect(i*6, y, 5, 2, ink)
|
||
} else {
|
||
g.Checker(i*6, y, 5, 2, pixel.Shade)
|
||
}
|
||
}
|
||
if top := int(shown[i]*float64(n) + 0.5); top > 0 {
|
||
g.Rect(i*6, (n-top)*3, 5, 1, pixel.Ink)
|
||
}
|
||
}
|
||
})
|
||
}
|