112 lines
2.9 KiB
Go
112 lines
2.9 KiB
Go
package widgets
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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/container"
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"fyne.io/fyne/v2/layout"
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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 OptionButton struct {
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widget.BaseWidget
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Text string
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Icon fyne.Resource
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Menu *fyne.Menu
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OnTapped func()
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}
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func NewOptionButton(text string, menu *fyne.Menu, onTapped func()) *OptionButton {
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return NewOptionButtonWithIcon(text, nil, menu, onTapped)
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}
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func NewOptionButtonWithIcon(text string, icon fyne.Resource, menu *fyne.Menu, onTapped func()) *OptionButton {
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o := &OptionButton{
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Menu: menu,
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Text: text,
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Icon: icon,
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OnTapped: onTapped,
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}
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o.ExtendBaseWidget(o)
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return o
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}
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func (o *OptionButton) CreateRenderer() fyne.WidgetRenderer {
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return newOptionButtonRenderer(o)
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}
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var _ fyne.WidgetRenderer = (*optionButtonRenderer)(nil)
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type optionButtonRenderer struct {
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wid *OptionButton
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mainBtn *widget.Button
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auxBtn *widget.Button
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dividerLine *canvas.Rectangle
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objects []fyne.CanvasObject
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}
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func newOptionButtonRenderer(o *OptionButton) *optionButtonRenderer {
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render := &optionButtonRenderer{wid: o}
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render.mainBtn = widget.NewButtonWithIcon(o.Text, o.Icon, render.onMainBtnTapped)
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render.mainBtn.Alignment = widget.ButtonAlignLeading
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render.auxBtn = widget.NewButtonWithIcon("", theme.MenuDropDownIcon(), render.showMenu)
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render.auxBtn.Importance = widget.LowImportance
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render.dividerLine = canvas.NewRectangle(o.Theme().Color(theme.ColorNameSeparator,
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fyne.CurrentApp().Settings().ThemeVariant()))
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render.dividerLine.SetMinSize(fyne.NewSquareSize(1))
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divider := container.NewBorder(layout.NewSpacer(), layout.NewSpacer(), nil, nil, render.dividerLine)
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render.objects = []fyne.CanvasObject{
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container.NewStack(
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render.mainBtn,
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container.New(layout.NewCustomPaddedHBoxLayout(0),
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layout.NewSpacer(), divider, render.auxBtn),
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),
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}
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return render
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}
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func (o *optionButtonRenderer) showMenu() {
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if o.wid.Menu == nil {
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return
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}
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canv := fyne.CurrentApp().Driver().CanvasForObject(o.wid)
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pop := widget.NewPopUpMenu(o.wid.Menu, canv)
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pop.ShowAtRelativePosition(o.auxBtn.Position().Add(
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fyne.NewPos(0, o.wid.Size().Height)),
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o.wid,
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)
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}
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func (o *optionButtonRenderer) MinSize() fyne.Size {
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return o.mainBtn.MinSize().Add(fyne.NewSize(o.auxBtn.MinSize().Width, 0))
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}
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func (o *optionButtonRenderer) Layout(s fyne.Size) {
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o.objects[0].(*fyne.Container).Resize(s)
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}
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func (o *optionButtonRenderer) Objects() []fyne.CanvasObject {
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return o.objects
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}
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func (o *optionButtonRenderer) Refresh() {
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o.mainBtn.Text = o.wid.Text
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o.mainBtn.Icon = o.wid.Icon
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o.dividerLine.FillColor = o.wid.Theme().Color(theme.ColorNameSeparator, fyne.CurrentApp().Settings().ThemeVariant())
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o.objects[0].Refresh()
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}
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func (o *optionButtonRenderer) Destroy() {}
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func (o *optionButtonRenderer) onMainBtnTapped() {
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if o.wid.OnTapped != nil {
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o.wid.OnTapped()
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}
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}
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