Method attachModel

combobox.go:326–354

()

}

func (cb *ComboBox) attachModel() {
	itemsResetHandler := func() {
		cb.resetItems()
	}
	cb.itemsResetHandlerHandle = cb.model.ItemsReset().Attach(itemsResetHandler)

	itemChangedHandler := func(index int) {
		if win.CB_ERR == cb.SendMessage(win.CB_DELETESTRING, uintptr(index), 0) {
			newError("SendMessage(CB_DELETESTRING)")
		}

		cb.insertItemAt(index)

		cb.SetCurrentIndex(cb.prevCurIndex)
	}
	cb.itemChangedHandlerHandle = cb.model.ItemChanged().Attach(itemChangedHandler)

	cb.itemsInsertedHandlerHandle = cb.model.ItemsInserted().Attach(func(from, to int) {
		for i := from; i <= to; i++ {
			cb.insertItemAt(i)
		}
	})

	cb.itemsRemovedHandlerHandle = cb.model.ItemsRemoved().Attach(func(from, to int) {
		for i := to; i >= from; i-- {
			cb.removeItem(i)
		}
	})
}

func (cb *ComboBox) detachModel() {
	cb.model.ItemsReset().Detach(cb.itemsResetHandlerHandle)