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#pragma once
#include "export.hpp"
#include "slider.hpp"
#include <QString>
#include <type_traits>
namespace options::detail {
template<typename t, typename u = t, typename Enable = void>
struct default_value_traits
{
virtual ~default_value_traits() = default;
using stored_type = std::decay_t<t>;
using value_type = std::decay_t<u>;
static value_type from_value(const value_type& val, const value_type&) { return val; }
static value_type from_storage(const stored_type& x) { return static_cast<value_type>(x); }
static stored_type to_storage(const value_type& val) { return static_cast<stored_type>(val); }
static value_type value_from_variant(const QVariant& x)
{
return from_storage(storage_from_variant(x));
}
static stored_type storage_from_variant(const QVariant& x)
{
return x.value<stored_type>();
}
};
template<typename t, typename u = t, typename Enable = void>
struct value_traits : default_value_traits<t, u, Enable>
{
};
template<>
struct value_traits<slider_value> : default_value_traits<slider_value>
{
static inline slider_value from_value(const slider_value& val, const slider_value& def)
{
return { val.cur(), def.min(), def.max() };
}
};
// Qt uses int a lot in slots so use it for all enums
template<typename t>
struct value_traits<t, t, std::enable_if_t<std::is_enum_v<t>>> : public default_value_traits<int, t>
{
};
template<>
struct value_traits<float> : public default_value_traits<float, double, void>
{
};
} // ns options::detail
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