Checkbox.h

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/*
 * Copyright 2015-2019 CNRS-UM LIRMM, CNRS-AIST JRL
 */
 
#pragma once
 
#include <mc_rtc/gui/details/traits.h>
#include <mc_rtc/gui/elements.h>
 
namespace mc_rtc::gui
{
 
namespace details
{
 
template<typename GetT, typename Callback>
struct CheckboxImpl : public VoidCallbackElement<DataElement<GetT>, Callback>
{
  static constexpr auto type = Elements::Checkbox;
 
  CheckboxImpl(const std::string & name, GetT get_fn, Callback cb)
  : VoidCallbackElement<DataElement<GetT>, Callback>(name, cb, get_fn)
  {
    static_assert(details::CheckReturnType<GetT, bool>::value,
                  "Checkbox element getter callback must return a boolean");
  }
 
  CheckboxImpl() {}
};
 
} // namespace details
 
template<typename GetT, typename Callback>
auto Checkbox(const std::string & name, GetT get_fn, Callback cb)
{
  return details::CheckboxImpl(name, get_fn, cb);
}
 
inline auto Checkbox(const std::string & name, bool & value)
{
  return details::CheckboxImpl(name, details::read(value), [&value]() { value = !value; });
}
 
} // namespace mc_rtc::gui