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|
/*
A Labeled Combobox widget:
-----------------------------
| | |
| Food: | <dropdown> |
| | |
-----------------------------
The user can then edit the dropdown field and type anything into it
*/
package gadgets
import (
"go.wit.com/log"
"go.wit.com/gui/gui"
)
type BasicCombobox struct {
ready bool
name string
parent *gui.Node // parent widget
l *gui.Node // label widget
d *gui.Node // dropdown widget
value string
label string
Custom func()
}
func (d *BasicCombobox) Get() string {
if ! d.Ready() {return ""}
return d.value
}
// Returns true if the status is valid
func (d *BasicCombobox) Ready() bool {
if d == nil {return false}
return d.ready
}
func (d *BasicCombobox) Add(value string) {
if ! d.Ready() {return}
log.Println("BasicCombobox.Add() =", value)
d.d.AddDropdownName(value)
return
}
func (d *BasicCombobox) Set(value string) bool {
if ! d.Ready() {return false}
log.Println("BasicCombobox.Set() =", value)
d.d.SetText(value)
d.value = value
return true
}
func NewBasicCombobox(p *gui.Node, name string) *BasicCombobox {
d := BasicCombobox {
parent: p,
name: name,
ready: false,
}
// various timeout settings
d.l = p.NewLabel(name)
d.d = p.NewCombobox("")
d.d.Custom = func() {
d.value = d.Get()
log.Println("BasicCombobox.Custom() user changed value to =", d.value)
if d.Custom != nil {
d.Custom()
}
}
d.ready = true
return &d
}
|
