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>
47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
package chart
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import (
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"fmt"
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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 WaterfallOptions struct {
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// Width and Height are dots; zeros mean 160 by 80.
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Width, Height int
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}
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// Waterfall walks a running total: Good up, Bad down.
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func Waterfall(c *ui.Context, text string, labels []string, deltas []float64, o WaterfallOptions) ui.Element {
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k := pixel.K(c)
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if len(labels) != len(deltas) || len(deltas) == 0 {
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panic(fmt.Sprintf("chart: Waterfall has %d labels for %d steps", len(labels), len(deltas)))
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}
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w, h := size("Waterfall", o.Width, o.Height, 160, 80)
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totals := make([]float64, len(deltas)+1)
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for i, d := range deltas {
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totals[i+1] = totals[i] + d
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}
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lo, hi := span(totals)
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p := fit(lo, hi, w, h, labels)
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return ui.Box(c).Size(k.D(w), k.D(h)).Role(ui.RoleImage).Label(text).Description(read(labels, deltas)).Draw(func(pt *ui.Painter, r ui.Rect) {
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g := k.Canvas(pt, r)
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p.grid(g, labels)
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bw := max(1, p.w/len(deltas)*2/3)
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for i, d := range deltas {
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a, b := p.at(totals[i]), p.at(totals[i+1])
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ink := pixel.Good
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if d < 0 {
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ink = pixel.Bad
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}
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x := p.slot(i, len(deltas)) - bw/2
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g.Rect(x, min(a, b), bw, max(1, abs(a-b)), ink)
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if i+1 < len(deltas) {
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g.Checker(x+bw, b, p.slot(i+1, len(deltas))-bw/2-x-bw, 1, pixel.Edge)
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}
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}
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})
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}
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