forked from dolphin-emu/dolphin
05c8d229af
Currently, a simple typo in the system name will trigger an assert message that complains about a "programming error". This is not user friendly and misleading. So this changes GetSystemFromName to return an std::optional, which allows for callers to check whether the system exists and handle failures better.
100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
// Copyright 2016 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <functional>
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#include <map>
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#include <memory>
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#include <optional>
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#include <string>
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#include "Common/Config/ConfigInfo.h"
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#include "Common/Config/Enums.h"
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#include "Common/Config/Layer.h"
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namespace Config
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{
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using Layers = std::map<LayerType, std::unique_ptr<Layer>>;
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using ConfigChangedCallback = std::function<void()>;
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// Layer management
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Layers* GetLayers();
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void AddLayer(std::unique_ptr<Layer> layer);
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void AddLayer(std::unique_ptr<ConfigLayerLoader> loader);
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Layer* GetLayer(LayerType layer);
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void RemoveLayer(LayerType layer);
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bool LayerExists(LayerType layer);
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void AddConfigChangedCallback(ConfigChangedCallback func);
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void InvokeConfigChangedCallbacks();
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// Explicit load and save of layers
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void Load();
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void Save();
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void Init();
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void Shutdown();
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void ClearCurrentRunLayer();
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const std::string& GetSystemName(System system);
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std::optional<System> GetSystemFromName(const std::string& system);
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const std::string& GetLayerName(LayerType layer);
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LayerType GetActiveLayerForConfig(const ConfigLocation&);
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template <typename T>
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T Get(LayerType layer, const ConfigInfo<T>& info)
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{
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if (layer == LayerType::Meta)
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return Get(info);
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return GetLayer(layer)->Get(info);
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}
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template <typename T>
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T Get(const ConfigInfo<T>& info)
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{
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return GetLayer(GetActiveLayerForConfig(info.location))->Get(info);
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}
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template <typename T>
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T GetBase(const ConfigInfo<T>& info)
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{
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return Get(LayerType::Base, info);
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}
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template <typename T>
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LayerType GetActiveLayerForConfig(const ConfigInfo<T>& info)
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{
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return GetActiveLayerForConfig(info.location);
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}
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template <typename T>
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void Set(LayerType layer, const ConfigInfo<T>& info, const T& value)
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{
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GetLayer(layer)->Set(info, value);
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InvokeConfigChangedCallbacks();
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}
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template <typename T>
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void SetBase(const ConfigInfo<T>& info, const T& value)
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{
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Set<T>(LayerType::Base, info, value);
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}
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template <typename T>
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void SetCurrent(const ConfigInfo<T>& info, const T& value)
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{
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Set<T>(LayerType::CurrentRun, info, value);
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}
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template <typename T>
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void SetBaseOrCurrent(const ConfigInfo<T>& info, const T& value)
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{
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if (GetActiveLayerForConfig(info) == LayerType::Base)
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Set<T>(LayerType::Base, info, value);
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else
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Set<T>(LayerType::CurrentRun, info, value);
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}
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}
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