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.
110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
package datetime
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import (
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"fmt"
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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/input"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type TimerOptions struct {
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Disabled bool
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}
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type TimerResult struct {
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Element *ui.Element
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// Done is true in the frame the time runs out.
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Done bool
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}
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type timerKey struct{}
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// ticking is time left when paused, the end, the ring.
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type ticking struct {
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left time.Duration
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ends, rang time.Time
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}
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// Timer counts *set down; it flashes at zero.
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func Timer(c *ui.Context, text string, set *time.Duration, o TimerOptions) TimerResult {
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k := pixel.K(c)
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if *set < 0 || *set >= 100*time.Minute || *set%time.Second != 0 {
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panic(fmt.Sprintf("datetime: Timer set %v is not whole seconds under 100 min", *set))
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}
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col := ui.Column(c).Gap(k.D(4)).Role(ui.RoleGroup).Label(text)
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t := ui.Local(col, timerKey{}, func() ticking { return ticking{} })
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now := k.Now()
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running := !t.ends.IsZero()
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left := t.left
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res := TimerResult{Element: col}
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if running {
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left = max(0, t.ends.Sub(now))
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k.Tick(c, 4)
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if left == 0 {
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t.ends, t.left, t.rang, res.Done, running = time.Time{}, 0, now, true, false
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slog.Debug("8bit: timer done", "label", text)
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}
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}
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// It flashes for three seconds after ringing.
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flash := !t.rang.IsZero() && now.Sub(t.rang) < 3*time.Second
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if flash {
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k.Tick(c, 4)
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}
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if !running && !flash && t.left == 0 {
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left = *set
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}
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col.Children(func() {
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s := clock((left + time.Second - 1).Truncate(time.Second))
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face := ui.Box(c).Size(k.D(pixel.Measure(s)*2), k.D(pixel.LineHeight*2)).Role(ui.RoleStatus).Label(s)
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face.Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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if !flash {
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g.Text(0, 0, s, pixel.Ink, 2)
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return
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}
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// Reduced, the ring holds steady in Bad.
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if k.Reduce() || g.Busy(4)%2 == 0 {
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g.Text(0, 0, s, pixel.Bad, 2)
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}
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})
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ui.Row(c).Gap(k.D(4)).AlignItems(ui.Center).Children(func() {
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locked := o.Disabled || running
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mins, secs := int(*set/time.Minute), int(*set%time.Minute/time.Second)
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for _, f := range []struct {
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name string
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v *int
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top int
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}{{k.Msg("minutes"), &mins, 99}, {k.Msg("seconds"), &secs, 59}} {
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pixel.Text(c, f.name, pixel.TextOptions{Slot: pixel.Faint})
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if input.Stepper(c, f.name, f.v, input.StepperOptions{Max: f.top, Disabled: locked}).Changed {
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*set, t.left = time.Duration(mins)*time.Minute+time.Duration(secs)*time.Second, 0
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// The face above, built already, reads the new setting.
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s = clock(*set)
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face.Label(s)
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}
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}
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})
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toggle := k.Msg("start")
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if running {
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toggle = k.Msg("pause")
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}
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if input.Button(c, toggle, input.ButtonOptions{Size: input.Small, Variant: input.Primary, Disabled: o.Disabled}).Clicked {
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switch {
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case running:
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t.left, t.ends = left, time.Time{}
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case t.left > 0:
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t.ends = now.Add(t.left)
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default:
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t.ends = now.Add(*set)
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}
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t.rang = time.Time{}
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slog.Debug("8bit: timer", "label", text, "running", !running)
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}
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})
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return res
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}
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