66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
package gel
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import (
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l "github.com/p9c/p9/pkg/gel/gio/layout"
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)
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type BoolHook func(b bool)
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type Bool struct {
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*Window
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value bool
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clk *Clickable
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changed bool
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changeState BoolHook
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}
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// Bool creates a new boolean widget
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func (w *Window) Bool(value bool) *Bool {
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return &Bool{
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Window: w,
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value: value,
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clk: w.Clickable(),
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changed: false,
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changeState: func(b bool) {},
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}
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}
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// GetValue gets the boolean value stored in the widget
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func (b *Bool) GetValue() bool {
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return b.value
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}
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// Value sets the value of the boolean stored in the widget
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func (b *Bool) Value(value bool) {
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b.value = value
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}
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// SetOnChange sets the callback function to run when the state changes
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func (b *Bool) SetOnChange(fn BoolHook) *Bool {
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b.changeState = fn
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return b
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}
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// Changed reports whether value has changed since the last call to Changed
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func (b *Bool) Changed() bool {
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changed := b.changed
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b.changed = false
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return changed
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}
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// History returns the history of presses in the buffer
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func (b *Bool) History() []press {
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return b.clk.History()
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}
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// Fn renders the events of the boolean widget
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func (b *Bool) Fn(gtx l.Context) l.Dimensions {
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dims := b.clk.Fn(gtx)
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for b.clk.Clicked() {
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b.value = !b.value
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b.changed = true
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b.Window.Runner <- func() (e error) { b.changeState(b.value); return nil }
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}
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return dims
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}
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