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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <functional>
#include <map>
#include <string>
#include <typeindex>
#include "common/common_types.h"
namespace Settings {
enum class Category : u32 {
Audio,
Core,
Cpu,
CpuDebug,
CpuUnsafe,
Renderer,
RendererAdvanced,
RendererDebug,
System,
SystemAudio,
DataStorage,
Debugging,
DebuggingGraphics,
Miscellaneous,
Network,
WebService,
AddOns,
Controls,
Ui,
UiGeneral,
UiLayout,
UiGameList,
Screenshots,
Shortcuts,
Multiplayer,
Services,
Paths,
MaxEnum,
};
constexpr u8 SpecializationTypeMask = 0xf;
constexpr u8 SpecializationAttributeMask = 0xf0;
constexpr u8 SpecializationAttributeOffset = 4;
// Scalar and countable could have better names
enum Specialization : u8 {
Default = 0,
Time = 1, // Duration or specific moment in time
Hex = 2, // Hexadecimal number
List = 3, // Setting has specific members
RuntimeList = 4, // Members of the list are determined during runtime
Scalar = 5, // Values are continuous
Countable = 6, // Can be stepped through
Paired = 7, // Another setting is associated with this setting
Radio = 8, // Setting should be presented in a radio group
Percentage = (1 << SpecializationAttributeOffset), // Should be represented as a percentage
};
class BasicSetting;
class Linkage {
public:
explicit Linkage(u32 initial_count = 0);
~Linkage();
std::map<Category, std::vector<BasicSetting*>> by_category{};
std::vector<std::function<void()>> restore_functions{};
u32 count;
};
/**
* BasicSetting is an abstract class that only keeps track of metadata. The string methods are
* available to get data values out.
*/
class BasicSetting {
protected:
explicit BasicSetting(Linkage& linkage, const std::string& name, Category category_, bool save_,
bool runtime_modifiable_, u32 specialization,
BasicSetting* other_setting);
public:
virtual ~BasicSetting();
/*
* Data retrieval
*/
/**
* Returns a string representation of the internal data. If the Setting is Switchable, it
* respects the internal global state: it is based on GetValue().
*
* @returns A string representation of the internal data.
*/
[[nodiscard]] virtual std::string ToString() const = 0;
/**
* Returns a string representation of the global version of internal data. If the Setting is
* not Switchable, it behaves like ToString.
*
* @returns A string representation of the global version of internal data.
*/
[[nodiscard]] virtual std::string ToStringGlobal() const;
/**
* @returns A string representation of the Setting's default value.
*/
[[nodiscard]] virtual std::string DefaultToString() const = 0;
/**
* Returns a string representation of the minimum value of the setting. If the Setting is not
* ranged, the string represents the default initialization of the data type.
*
* @returns A string representation of the minimum value of the setting.
*/
[[nodiscard]] virtual std::string MinVal() const = 0;
/**
* Returns a string representation of the maximum value of the setting. If the Setting is not
* ranged, the string represents the default initialization of the data type.
*
* @returns A string representation of the maximum value of the setting.
*/
[[nodiscard]] virtual std::string MaxVal() const = 0;
/**
* Takes a string input, converts it to the internal data type if necessary, and then runs
* SetValue with it.
*
* @param load String of the input data.
*/
virtual void LoadString(const std::string& load) = 0;
/**
* Returns a string representation of the data. If the data is an enum, it returns a string of
* the enum value. If the internal data type is not an enum, this is equivalent to ToString.
*
* e.g. renderer_backend.Canonicalize() == "OpenGL"
*
* @returns Canonicalized string representation of the internal data
*/
[[nodiscard]] virtual std::string Canonicalize() const = 0;
/*
* Metadata
*/
/**
* @returns A unique identifier for the Setting's internal data type.
*/
[[nodiscard]] virtual std::type_index TypeId() const = 0;
/**
* Returns true if the Setting's internal data type is an enum.
*
* @returns True if the Setting's internal data type is an enum
*/
[[nodiscard]] virtual constexpr bool IsEnum() const = 0;
/**
* Returns true if the current setting is Switchable.
*
* @returns If the setting is a SwitchableSetting
*/
[[nodiscard]] virtual constexpr bool Switchable() const {
return false;
}
/**
* Returns true to suggest that a frontend can read or write the setting to a configuration
* file.
*
* @returns The save preference
*/
[[nodiscard]] bool Save() const;
/**
* @returns true if the current setting can be changed while the guest is running.
*/
[[nodiscard]] bool RuntimeModfiable() const;
/**
* @returns A unique number corresponding to the setting.
*/
[[nodiscard]] constexpr u32 Id() const {
return id;
}
/**
* Returns the setting's category AKA INI group.
*
* @returns The setting's category
*/
[[nodiscard]] Category GetCategory() const;
/**
* @returns Extra metadata for data representation in frontend implementations.
*/
[[nodiscard]] u32 Specialization() const;
/**
* @returns Another BasicSetting if one is paired, or nullptr otherwise.
*/
[[nodiscard]] BasicSetting* PairedSetting() const;
/**
* Returns the label this setting was created with.
*
* @returns A reference to the label
*/
[[nodiscard]] const std::string& GetLabel() const;
/**
* @returns If the Setting checks input values for valid ranges.
*/
[[nodiscard]] virtual constexpr bool Ranged() const = 0;
/**
* @returns The index of the enum if the underlying setting type is an enum, else max of u32.
*/
[[nodiscard]] virtual constexpr u32 EnumIndex() const = 0;
/*
* Switchable settings
*/
/**
* Sets a setting's global state. True means use the normal setting, false to use a custom
* value. Has no effect if the Setting is not Switchable.
*
* @param global The desired state
*/
virtual void SetGlobal(bool global);
/**
* Returns true if the setting is using the normal setting value. Always true if the setting is
* not Switchable.
*
* @returns The Setting's global state
*/
[[nodiscard]] virtual bool UsingGlobal() const;
private:
const std::string label; ///< The setting's label
const Category category; ///< The setting's category AKA INI group
const u32 id; ///< Unique integer for the setting
const bool save; ///< Suggests if the setting should be saved and read to a frontend config
const bool
runtime_modifiable; ///< Suggests if the setting can be modified while a guest is running
const u32 specialization; ///< Extra data to identify representation of a setting
BasicSetting* const other_setting; ///< A paired setting
};
} // namespace Settings
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