60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package input
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import (
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"fmt"
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"log/slog"
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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 ToggleGroupOptions struct {
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// Single keeps at most one toggle on.
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Single bool
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Size Size
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Disabled bool
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Label string
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}
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type ToggleGroupResult struct {
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Element *ui.Element
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Changed bool
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}
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// ToggleGroup joins toggles; on[i] holds each one's state.
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func ToggleGroup(c *ui.Context, labels []string, on []bool, o ToggleGroupOptions) ToggleGroupResult {
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if len(on) != len(labels) {
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panic(fmt.Sprintf("input: ToggleGroup has %d labels and %d states", len(labels), len(on)))
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}
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k := pixel.K(c)
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h, pad, top, sc := o.Size.metrics()
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res := ToggleGroupResult{}
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res.Element = ui.Row(c).Role(ui.RoleToolbar).Label(o.Label).FocusGroup(ui.Horizontal).Children(func() {
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for i, l := range labels {
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shell, base, st := pixel.Shell(c, func() *ui.Element { return ui.ToggleBase(c, &on[i]).Label(l).Disabled(o.Disabled) })
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if i > 0 {
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shell.Margin(0, 0, 0, k.D(-1))
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}
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shell.Size(k.D(pixel.Measure(l)*sc+2*pad), k.D(h)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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ink, dy := face(g, Normal, st, on[i])
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g.Text(pad, top+dy, l, ink, sc)
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finish(g, st)
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})
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if base.Changed() {
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res.Changed = true
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if o.Single && on[i] {
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for j := range on {
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on[j] = j == i
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}
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}
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}
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}
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})
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if res.Changed {
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slog.Debug("8bit: toggle group", "on", on)
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}
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return res
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}
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