Files
8bitMyGoUI/chart/stepchart.go
T
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

35 lines
1006 B
Go

package chart
import (
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type StepChartOptions struct {
// Width and Height are dots; zeros mean 160 by 80.
Width, Height int
Slot pixel.Slot
}
// StepChart holds each value flat, then steps to the next.
func StepChart(c *ui.Context, text string, labels []string, values []float64, o StepChartOptions) ui.Element {
k := pixel.K(c)
w, h := size("StepChart", o.Width, o.Height, 160, 80)
p := fitSeries(labels, []Series{{Name: text, Values: values}}, w, h)
ink := pick(o.Slot, 0)
return ui.Box(c).Size(k.D(w), k.D(h)).Role(ui.RoleImage).Label(text).Description(read(labels, values)).Draw(func(pt *ui.Painter, r ui.Rect) {
g := k.Canvas(pt, r)
p.grid(g, labels)
n := len(values)
for i, v := range values {
x0, x1, y := p.x+i*p.w/n, p.x+(i+1)*p.w/n, p.at(v)
g.HLine(x0, y, x1-x0, ink)
if i+1 < n {
y1 := p.at(values[i+1])
g.VLine(x1, min(y, y1), abs(y-y1)+1, ink)
}
}
})
}