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>
65 lines
1.8 KiB
Go
65 lines
1.8 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 LineChartOptions 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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// LineChart draws series as Bresenham lines with square markers.
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func LineChart(c *ui.Context, text string, labels []string, series []Series, o LineChartOptions) ui.Element {
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k := pixel.K(c)
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w, h := size("LineChart", o.Width, o.Height, 160, 80)
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p := fitSeries(labels, series, w, h)
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return ui.Box(c).Size(k.D(w), k.D(h)).Role(ui.RoleImage).Label(text).Description(readSeries(labels, series)).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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lines(g, p, len(labels), series)
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})
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}
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// fitSeries checks series against labels and fits their range.
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func fitSeries(labels []string, series []Series, w, h int) plot {
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rows := make([][]float64, len(series))
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for i, s := range series {
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if len(s.Values) != len(labels) {
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panic(fmt.Sprintf("chart: series %q has %d values for %d labels", s.Name, len(s.Values), len(labels)))
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}
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rows[i] = s.Values
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}
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lo, hi := span(rows...)
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return fit(lo, hi, w, h, labels)
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}
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// lines joins each series' points and marks them with squares.
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func lines(g pixel.Canvas, p plot, n int, series []Series) {
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for j, s := range series {
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ink := pick(s.Slot, j)
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for i := 1; i < n; i++ {
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g.Line(p.slot(i-1, n), p.at(s.Values[i-1]), p.slot(i, n), p.at(s.Values[i]), ink)
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}
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for i, v := range s.Values {
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g.Rect(p.slot(i, n)-1, p.at(v)-1, 3, 3, ink)
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}
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}
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}
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// readSeries lists each series for assistive technology.
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func readSeries(labels []string, series []Series) string {
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out := ""
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for i, s := range series {
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if i > 0 {
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out += "; "
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}
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out += s.Name + ": " + read(labels, s.Values)
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}
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return out
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}
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