ComboInput.h

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/*
 * Copyright 2015-2019 CNRS-UM LIRMM, CNRS-AIST JRL
 */
 
#pragma once
 
#include <mc_rtc/gui/elements.h>
 
namespace mc_rtc::gui
{
 
namespace details
{
 
template<typename GetT, typename SetT>
struct ComboInputImpl : public CommonInputImpl<GetT, SetT>
{
  static constexpr auto type = Elements::ComboInput;
 
  ComboInputImpl(const std::string & name, const std::vector<std::string> & values, GetT get_fn, SetT set_fn)
  : CommonInputImpl<GetT, SetT>(name, get_fn, set_fn), values_(values)
  {
    static_assert(details::CheckReturnType<GetT, std::string>::value,
                  "ComboInput element getter callback should return an std::string");
  }
 
  static constexpr size_t write_size() { return CommonInputImpl<GetT, SetT>::write_size() + 1; }
 
  void write(mc_rtc::MessagePackBuilder & writer)
  {
    CommonInputImpl<GetT, SetT>::write(writer);
    writer.write(values_);
  }
 
  ComboInputImpl() {}
 
private:
  std::vector<std::string> values_;
};
 
} // namespace details
 
template<typename GetT, typename SetT>
auto ComboInput(const std::string & name, const std::vector<std::string> & values, GetT get_fn, SetT set_fn)
{
  return details::ComboInputImpl(name, values, get_fn, set_fn);
}
 
inline auto ComboInput(const std::string & name, const std::vector<std::string> & values, std::string & value)
{
  return ComboInput(name, values, details::read(value), details::write(value));
}
 
} // namespace mc_rtc::gui