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https://git.sr.ht/~eliasnaur/gio
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Elias Naur
c458eb30f0
Without the updates, the switch and radiobutton would use stale state for layout. Signed-off-by: Elias Naur <mail@eliasnaur.com>
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package material
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import (
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"gioui.org/io/semantic"
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"gioui.org/layout"
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"gioui.org/widget"
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)
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type RadioButtonStyle struct {
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checkable
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Key string
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Group *widget.Enum
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}
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// RadioButton returns a RadioButton with a label. The key specifies
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// the value for the Enum.
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func RadioButton(th *Theme, group *widget.Enum, key, label string) RadioButtonStyle {
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r := RadioButtonStyle{
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Group: group,
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checkable: checkable{
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Label: label,
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Color: th.Palette.Fg,
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IconColor: th.Palette.ContrastBg,
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TextSize: th.TextSize * 14.0 / 16.0,
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Size: 26,
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shaper: th.Shaper,
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checkedStateIcon: th.Icon.RadioChecked,
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uncheckedStateIcon: th.Icon.RadioUnchecked,
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},
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Key: key,
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}
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r.checkable.Font.Typeface = th.Face
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return r
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}
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// Layout updates enum and displays the radio button.
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func (r RadioButtonStyle) Layout(gtx layout.Context) layout.Dimensions {
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r.Group.Update(gtx)
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hovered, hovering := r.Group.Hovered()
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focus, focused := r.Group.Focused()
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return r.Group.Layout(gtx, r.Key, func(gtx layout.Context) layout.Dimensions {
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semantic.RadioButton.Add(gtx.Ops)
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highlight := hovering && hovered == r.Key || focused && focus == r.Key
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return r.layout(gtx, r.Group.Value == r.Key, highlight)
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})
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}
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