func (cb ComboBox) Create(builder *Builder) error {
if _, ok := cb.Model.([]string); ok &&
(cb.BindingMember != "" || cb.DisplayMember != "") {
return errors.New("ComboBox.Create: BindingMember and DisplayMember must be empty for []string models.")
}
var w *walk.ComboBox
var err error
if cb.Editable {
w, err = walk.NewComboBox(builder.Parent())
} else {
w, err = walk.NewDropDownBox(builder.Parent())
}
if err != nil {
return err
}
return builder.InitWidget(cb, w, func() error {
w.SetFormat(cb.Format)
w.SetPrecision(cb.Precision)
w.SetMaxLength(cb.MaxLength)
if err := w.SetBindingMember(cb.BindingMember); err != nil {
return err
}
if err := w.SetDisplayMember(cb.DisplayMember); err != nil {
return err
}
if err := w.SetModel(cb.Model); err != nil {
return err
}
if cb.OnCurrentIndexChanged != nil {
w.CurrentIndexChanged().Attach(cb.OnCurrentIndexChanged)
}
if cb.AssignTo != nil {
*cb.AssignTo = w
}
return nil
})
}
func NewDropDownBox(parent walk.Container, text string, width, height, x, y int) *DropDownBox {
b := new(DropDownBox)
b.ComboBox, _ = walk.NewDropDownBox(parent)
b.SetWidth(width)
b.SetHeight(height)
b.SetY(y)
b.SetX(x)
b.model = NewDropDownBoxModel()
b.SetModel(b.model)
return b
}