ZacharyZhang-NY
a2f2796455
Calendars, date and time inputs, pickers, clocks, timers, a sun dial, a season wheel, an agenda and a day schedule. Kit.At rebuilds at a moment (relative times, midnight). Stepper and NumberInput arrows stop under Inert. DateInput parks a popup focus as its own.
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
package datetime
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import (
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"log/slog"
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"time"
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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 CountdownOptions struct{}
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type CountdownResult struct {
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Element *ui.Element
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// Done is true in the frame time runs out.
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Done bool
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}
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type countKey struct{}
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// counting is the deadline counted to, and whether it passed.
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type counting struct {
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to time.Time
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over bool
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}
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// Countdown shows time left to deadline, Bad near the end.
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func Countdown(c *ui.Context, text string, deadline time.Time, o CountdownOptions) CountdownResult {
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k := pixel.K(c)
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e := ui.Box(c).Role(ui.RoleStatus).Label(text)
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st := ui.Local(e, countKey{}, func() counting { return counting{} })
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if !st.to.Equal(deadline) {
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*st = counting{to: deadline}
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}
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left := max(0, deadline.Sub(k.Now()))
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// Seconds round up: zero shows only at the end.
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shown := (left + time.Second - 1).Truncate(time.Second)
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res := CountdownResult{Element: e}
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if left == 0 && !st.over {
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st.over, res.Done = true, true
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slog.Debug("8bit: countdown done", "label", text)
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}
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if left > 0 {
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k.At(c, deadline.Add(-shown+time.Second))
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}
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s, ink := clock(shown), pixel.Ink
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if left < 10*time.Second {
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ink = pixel.Bad
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}
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e.Description(s).Size(k.D(pixel.Measure(s)*2), k.D(pixel.LineHeight*2)).Draw(func(p *ui.Painter, r ui.Rect) {
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k.Canvas(p, r).Text(0, 0, s, ink, 2)
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})
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return res
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}
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