88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
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package main
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import (
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/canvas"
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"fyne.io/fyne/v2/theme"
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"fyne.io/fyne/v2/widget"
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)
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type toggleRenderer struct {
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toggle *Toggle
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background *canvas.Rectangle
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swtch *canvas.Circle
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objects []fyne.CanvasObject
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}
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func (t *toggleRenderer) MinSize() fyne.Size {
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return fyne.NewSize(45, 21)
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}
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func (t *toggleRenderer) Layout(size fyne.Size) {
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t.background.Resize(size)
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swtchSize := fyne.Min(size.Height/.5, size.Width/2.5)
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t.swtch.Resize(fyne.NewSize(swtchSize, swtchSize))
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if t.toggle.On {
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t.swtch.Move(fyne.NewPos(size.Width-swtchSize-1, 1))
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t.swtch.FillColor = theme.Color(theme.ColorNamePrimary)
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} else {
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t.swtch.Move(fyne.NewPos(1, 1))
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t.swtch.FillColor = theme.Color(theme.ColorNameBackground)
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}
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}
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func (t *toggleRenderer) Refresh() {
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t.Layout(t.toggle.Size())
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canvas.Refresh(t.toggle)
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}
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func (t *toggleRenderer) Objects() []fyne.CanvasObject {
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return t.objects
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}
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func (t toggleRenderer) Destroy() {}
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type Toggle struct {
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widget.BaseWidget
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On bool
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onChanged func(bool)
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}
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func (t *Toggle) CreateRenderer() fyne.WidgetRenderer {
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bg := canvas.NewRectangle(theme.Color(theme.ColorNameInputBackground))
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swtch := canvas.NewCircle(theme.Color(theme.ColorNameBackground))
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bg.CornerRadius = 8.0
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bg.StrokeWidth = 2.0
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bg.StrokeColor = theme.Color(theme.ColorNameInputBorder)
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swtch.StrokeWidth = 2.0
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swtch.StrokeColor = theme.Color(theme.ColorNamePressed)
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return &toggleRenderer{
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toggle: t,
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background: bg,
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swtch: swtch,
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objects: []fyne.CanvasObject{bg, swtch},
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}
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}
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func (t *Toggle) OnChanged(f func(bool)) {
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t.onChanged = f
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}
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func (t *Toggle) Tapped(_ *fyne.PointEvent) {
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t.On = !t.On
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t.Refresh()
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if t.onChanged != nil {
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t.onChanged(t.On)
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}
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}
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func NewToggle() *Toggle {
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t := &Toggle{}
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t.ExtendBaseWidget(t)
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return t
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}
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