pick() [2/2]

template<typename T >

void MayaFlux::Portal::Forma::pick	(	std::string	title,
		std::vector< T >	items,
		std::type_identity_t< std::function< std::string(const T &)> >	label,
		std::type_identity_t< std::function< void(std::optional< T >)>	,
		callback
	)

Typed form of pick: list items by label and receive the chosen item.

Same behaviour as pick. The callback receives a copy of the chosen item, or nullopt if the window was closed without a choice.

Template Parameters

T	Item type, deduced from items.

Parameters

title	Window title.
items	Candidates, in display order.
label	Maps an item to its row caption.
callback	Invoked once with the chosen item or nullopt.

Definition at line 41 of file Picker.hpp.

{
    std::vector<std::string> labels;
    labels.reserve(items.size());
    for (const auto& item : items) {
        labels.push_back(label(item));
    }
 
    pick(std::move(title), std::move(labels),
        [items = std::move(items), callback = std::move(callback)](std::optional<size_t> index) {
            callback(index ? std::optional<T>(items.at(*index)) : std::nullopt);
        });
}

References callback, index, label, and pick().

Here is the call graph for this function: