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.
83 lines
2.4 KiB
Go
83 lines
2.4 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 StopwatchOptions struct {
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Disabled bool
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}
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type StopwatchResult struct {
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Element *ui.Element
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Started, Stopped, Lapped, Reset bool
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}
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type watchKey struct{}
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// watch is time banked, since when it runs, and laps.
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type watch struct {
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banked time.Duration
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since time.Time
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laps []time.Duration
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}
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// tenths prints d as MM:SS.T.
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func tenths(d time.Duration) string {
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return fmt.Sprintf("%s.%d", clock(d), int(d/(100*time.Millisecond))%10)
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}
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// Stopwatch times with START, STOP, LAP, RESET; laps below.
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func Stopwatch(c *ui.Context, text string, o StopwatchOptions) StopwatchResult {
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k := pixel.K(c)
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col := ui.Column(c).Gap(k.D(4)).Role(ui.RoleGroup).Label(text)
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w := ui.Local(col, watchKey{}, func() watch { return watch{} })
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now := k.Now()
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running := !w.since.IsZero()
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elapsed := w.banked
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if running {
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elapsed += now.Sub(w.since)
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k.Tick(c, 10)
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}
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res := StopwatchResult{Element: col}
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col.Children(func() {
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s := tenths(elapsed)
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ui.Box(c).Size(k.D(pixel.Measure(s)*2), k.D(pixel.LineHeight*2)).Role(ui.RoleText).Label(s).Draw(func(p *ui.Painter, r ui.Rect) {
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k.Canvas(p, r).Text(0, 0, s, pixel.Ink, 2)
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})
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ui.Row(c).Gap(k.D(4)).Children(func() {
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toggle := k.Msg("start")
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if running {
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toggle = k.Msg("stop")
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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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if running {
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w.banked, w.since, res.Stopped = elapsed, time.Time{}, true
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} else {
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w.since, res.Started = now, true
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}
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}
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if input.Button(c, k.Msg("lap"), input.ButtonOptions{Size: input.Small, Disabled: o.Disabled || !running}).Clicked {
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w.laps, res.Lapped = append(w.laps, elapsed), true
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}
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if input.Button(c, k.Msg("reset"), input.ButtonOptions{Size: input.Small, Disabled: o.Disabled || running || elapsed == 0}).Clicked {
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*w, res.Reset = watch{}, true
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}
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})
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for i := len(w.laps) - 1; i >= max(0, len(w.laps)-5); i-- {
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pixel.Text(c, fmt.Sprintf("%s %d %s", k.Msg("lap"), i+1, tenths(w.laps[i])), pixel.TextOptions{Slot: pixel.Faint})
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}
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})
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if res.Started || res.Stopped || res.Lapped || res.Reset {
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slog.Debug("8bit: stopwatch", "label", text, "elapsed", elapsed, "laps", len(w.laps))
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}
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return res
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}
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