gadgets/basicCombobox.go

/*
	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
	progname string

	parent	*gui.Node	// parent widget
	l	*gui.Node	// label widget
	d	*gui.Node	// dropdown widget

	Custom func()
}

func (d *BasicCombobox) String() string {
	if ! d.Ready() {return ""}
	return d.d.String()
}

func (d *BasicCombobox) SetText(s string) {
	if ! d.Ready() {return}
	d.d.SetText(s)
}

// Returns true if the status is valid
func (d *BasicCombobox) Ready() bool {
	if d == nil {return false}
	return d.ready
}

func (d *BasicCombobox) Enable() {
	if d == nil {return}
	if d.d == nil {return}
	d.d.Enable()
}

func (d *BasicCombobox) Disable() {
	if d == nil {return}
	if d.d == nil {return}
	d.d.Disable()
}

func (d *BasicCombobox) SetTitle(name string) {
	if d == nil {return}
	if d.d == nil {return}
	d.d.SetText(name)
}

func (d *BasicCombobox) AddText(s string) {
	if ! d.Ready() {return}
	log.Log(INFO, "BasicCombobox.Add() =", s)
	d.d.AddText(s)
}

func NewBasicCombobox(p *gui.Node, label string) *BasicCombobox {
	d := BasicCombobox {
		parent: p,
		progname: label,
		ready: false,
	}

	// various timeout settings
	d.l = p.NewLabel(label)
	d.d = p.NewCombobox()
	d.d.Custom = func() {
		log.Warn("BasicCombobox.Custom() user changed value to =", d.d.String())
		if d.Custom != nil {
			d.Custom()
		}
	}
	d.ready = true
	return &d
}