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.
122 lines
2.7 KiB
Go
122 lines
2.7 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/pixel"
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)
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type TimeInputOptions struct {
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Disabled bool
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}
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type TimeInputResult struct {
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Element *ui.Element
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Changed bool
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}
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type timeKey struct{}
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// timing is the segment edited, and a first digit typed.
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type timing struct {
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seg, first int
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}
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// TimeInput edits HH:MM; Up and Down step, digits type.
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func TimeInput(c *ui.Context, text string, tm *time.Time, o TimeInputOptions) TimeInputResult {
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k := pixel.K(c)
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old := *tm
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shell, base, st := pixel.Shell(c, func() *ui.Element {
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return ui.Box(c).Focusable().Role(ui.RoleTextField).Label(text).Disabled(o.Disabled)
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})
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s := ui.Local(base, timeKey{}, func() timing { return timing{first: -1} })
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h, m := tm.Hour(), tm.Minute()
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set := func(hour, minute int) {
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*tm = time.Date(tm.Year(), tm.Month(), tm.Day(), hour, minute, 0, 0, tm.Location())
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h, m = hour, minute
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}
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step := func(d int) {
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if s.seg == 0 {
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set((h+d+24)%24, m)
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} else {
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set(h, (m+d+60)%60)
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}
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s.first = -1
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}
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if base.Shortcut(0, ui.KeyUp) {
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step(1)
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}
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if base.Shortcut(0, ui.KeyDown) {
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step(-1)
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}
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for _, mv := range []struct {
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key ui.Key
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seg int
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}{{ui.KeyLeft, 0}, {ui.KeyRight, 1}} {
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if base.Shortcut(0, mv.key) {
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s.seg, s.first = mv.seg, -1
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}
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}
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for d := range 10 {
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if !base.Shortcut(0, ui.Key0+ui.Key(d)) {
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continue
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}
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top := 23
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if s.seg == 1 {
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top = 59
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}
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v := d
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if s.first >= 0 && s.first*10+d <= top {
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v = s.first*10 + d
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}
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if s.seg == 0 {
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set(v, m)
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} else {
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set(h, v)
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}
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// A second digit ends a segment; hours pass to minutes.
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if s.first >= 0 {
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s.first, s.seg = -1, 1
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} else {
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s.first = d
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}
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}
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// Enter and Space are taken, so clicks come from pointers.
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base.Shortcut(0, ui.KeyEnter)
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base.Shortcut(0, ui.KeySpace)
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if base.Clicked() {
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x, _, _ := base.PointerPosition()
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s.seg, s.first = 0, -1
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if int(x/k.Dot()) >= 4+pixel.Measure("00:") {
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s.seg = 1
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}
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}
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shown := fmt.Sprintf("%02d:%02d", h, m)
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base.Description(shown)
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seg := s.seg
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shell.Size(k.D(pixel.Measure("00:00")+10), k.D(pixel.LineHeight+6)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Frame(0, 0, g.W, g.H, pixel.Sunken, pixel.Well)
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hh, mm, at := shown[:2], shown[3:], 5
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for i, part := range []string{hh, ":", mm} {
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ink, w := pixel.Ink, pixel.Measure(part)
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if st.Focus && (i == 0 && seg == 0 || i == 2 && seg == 1) {
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g.Rect(at-1, 2, w+2, g.H-4, pixel.Accent)
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ink = pixel.AccentInk
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}
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g.Text(at, 3, part, ink, 1)
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at += w
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}
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g.Finish(st)
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})
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res := TimeInputResult{Element: shell, Changed: !tm.Equal(old)}
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if res.Changed {
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slog.Debug("8bit: time input", "label", text, "time", shown)
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}
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return res
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}
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