gio/widget/bool.go at integration · dominikh/gio

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// SPDX-License-Identifier: Unlicense OR MIT

package widget

import (

"gioui.org/io/semantic"

"gioui.org/layout"

)

type Bool struct {

Value bool

clk Clickable

changed bool

}

// Changed reports whether Value has changed since the last

// call to Changed.

func (b *Bool) Changed() bool {

changed := b.changed

b.changed = false

return changed

}

// Hovered reports whether pointer is over the element.

func (b *Bool) Hovered() bool {

return b.clk.Hovered()

}

// Pressed reports whether pointer is pressing the element.

func (b *Bool) Pressed() bool {

return b.clk.Pressed()

}

// Focused reports whether b has focus.

func (b *Bool) Focused() bool {

return b.clk.Focused()

}

func (b *Bool) History() []Press {

return b.clk.History()

}

func (b *Bool) Layout(gtx layout.Context, w layout.Widget) layout.Dimensions {

dims := b.clk.Layout(gtx, func(gtx layout.Context) layout.Dimensions {

for b.clk.Clicked() {

b.Value = !b.Value

b.changed = true

}

semantic.SelectedOp(b.Value).Add(gtx.Ops)

semantic.DisabledOp(gtx.Queue == nil).Add(gtx.Ops)

return w(gtx)

})

return dims

}

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