toast::settings::Setting< T > Class Template Reference

Typed handle to a declared setting. More...

#include <settings.hpp>

Public Member Functions
	Setting (Entry *entry)
auto	valid () const -> bool
auto	value () const -> T
	operator T () const
void	set (T v)
void	onChange (std::function< void(T)> callback)
	Runs callback whenever this setting changes, and once immediately with the current value.
auto	entry () const -> Entry *

Detailed Description

template<typename T>
class toast::settings::Setting< T >

Typed handle to a declared setting.

Cheap to copy and stable for the process - entries are never removed. Reading is value(), writing is set(), and a write persists on the next Settings::save()

Member Function Documentation

onChange()

template<typename T>

void toast::settings::Setting< T >::onChange ( std::function< void(T)> callback )

inline

Runs callback whenever this setting changes, and once immediately with the current value.

The immediate call is what lets a system express "apply this value" once and have both the initial state and every later change go through the same path

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The documentation for this class was generated from the following file:

• engine/src/toast/settings/settings.hpp