Files
8bitMyGoUI/project/burndown.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

74 lines
2.4 KiB
Go

package project
import (
"fmt"
"math"
"strconv"
"strings"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type BurndownOptions struct {
// Width and Height are dots; zeros mean 200 by 100.
Width, Height int
}
// Burndown draws the ideal line and the work left.
func Burndown(c *ui.Context, text string, total float64, days int, left []float64, o BurndownOptions) ui.Element {
k := pixel.K(c)
if !(total > 0) || math.IsInf(total, 0) || days < 1 || len(left) > days+1 {
panic(fmt.Sprintf("project: Burndown of %v over %d days, %d points", total, days, len(left)))
}
top := total
for _, v := range left {
if !(v >= 0) || math.IsInf(v, 0) {
panic(fmt.Sprintf("project: Burndown work left %v", v))
}
top = max(top, v)
}
w, h := pixel.Or("Burndown Width", o.Width, 200), pixel.Or("Burndown Height", o.Height, 100)
// The share comes first, so huge totals stay finite.
ideal := func(d int) float64 { return total * (float64(days-d) / float64(days)) }
verdict, ink := "", pixel.Good
if n := len(left); n > 0 {
verdict = k.Msg("ahead")
if left[n-1] > ideal(n-1) {
verdict, ink = k.Msg("behind"), pixel.Bad
}
}
vals := make([]string, len(left))
for i, v := range left {
vals[i] = strconv.FormatFloat(v, 'g', 4, 64)
}
desc := fmt.Sprintf("%s %g → 0, %d; %s %s", k.Msg("ideal"), total, days, k.Msg("work_left"), strings.Join(vals, ", "))
if verdict != "" {
desc += "; " + verdict
}
return ui.Box(c).Size(k.D(w), k.D(h)).Role(ui.RoleImage).Label(text).Description(desc).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
// Plot inside a frame; day numbers sit under it.
pw, ph := w-8, h-14
// Floats, so huge day counts cannot overflow.
px := func(d int) int { return 4 + int(float64(d)*float64(pw)/float64(days)) }
py := func(v float64) int { return 4 + ph - int(v/top*float64(ph)) }
g.Frame(0, 0, w, h-8, pixel.Sunken, pixel.Well)
g.Line(px(0), py(total), px(days), py(0), pixel.Faint)
for d := 1; d < len(left); d++ {
g.Line(px(d-1), py(left[d-1]), px(d), py(left[d]), pixel.Accent)
}
for d, v := range left {
g.Rect(px(d)-1, py(v)-1, 3, 3, pixel.Accent)
}
for _, d := range []int{0, days / 2, days} {
s := strconv.Itoa(d)
g.Micro(max(0, min(w-pixel.MicroWidth(s), px(d)-pixel.MicroWidth(s)/2)), h-6, s, pixel.Faint, 1)
}
if verdict != "" {
g.Text(w-4-pixel.Measure(verdict), 3, verdict, ink, 1)
}
})
}