forked from dolphin-emu/dolphin
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
// Copyright 2013 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 <memory>
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#include <string>
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#include <utility>
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#include "InputCommon/ControllerInterface/Device.h"
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namespace ciface
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{
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namespace ExpressionParser
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{
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class ControlQualifier
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{
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public:
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bool has_device;
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Core::DeviceQualifier device_qualifier;
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std::string control_name;
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ControlQualifier() : has_device(false) {}
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operator std::string() const
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{
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if (has_device)
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return device_qualifier.ToString() + ":" + control_name;
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else
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return control_name;
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}
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};
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class ControlFinder
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{
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public:
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ControlFinder(const Core::DeviceContainer& container_, const Core::DeviceQualifier& default_,
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const bool is_input_)
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: container(container_), default_device(default_), is_input(is_input_)
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{
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}
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std::shared_ptr<Core::Device> FindDevice(ControlQualifier qualifier) const;
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Core::Device::Control* FindControl(ControlQualifier qualifier) const;
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private:
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const Core::DeviceContainer& container;
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const Core::DeviceQualifier& default_device;
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bool is_input;
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};
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class Expression
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{
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public:
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virtual ~Expression() = default;
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virtual ControlState GetValue() const = 0;
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virtual void SetValue(ControlState state) = 0;
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virtual int CountNumControls() const = 0;
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virtual void UpdateReferences(ControlFinder& finder) = 0;
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virtual operator std::string() const = 0;
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};
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enum class ParseStatus
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{
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Successful,
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SyntaxError,
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EmptyExpression,
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};
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std::pair<ParseStatus, std::unique_ptr<Expression>> ParseExpression(const std::string& expr);
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}
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}
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