71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
// Copyright 2013 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <utility>
|
|
#include "InputCommon/ControllerInterface/Device.h"
|
|
|
|
namespace ciface
|
|
{
|
|
namespace ExpressionParser
|
|
{
|
|
class ControlQualifier
|
|
{
|
|
public:
|
|
bool has_device;
|
|
Core::DeviceQualifier device_qualifier;
|
|
std::string control_name;
|
|
|
|
ControlQualifier() : has_device(false) {}
|
|
operator std::string() const
|
|
{
|
|
if (has_device)
|
|
return device_qualifier.ToString() + ":" + control_name;
|
|
else
|
|
return control_name;
|
|
}
|
|
};
|
|
|
|
class ControlFinder
|
|
{
|
|
public:
|
|
ControlFinder(const Core::DeviceContainer& container_, const Core::DeviceQualifier& default_,
|
|
const bool is_input_)
|
|
: container(container_), default_device(default_), is_input(is_input_)
|
|
{
|
|
}
|
|
std::shared_ptr<Core::Device> FindDevice(ControlQualifier qualifier) const;
|
|
Core::Device::Control* FindControl(ControlQualifier qualifier) const;
|
|
|
|
private:
|
|
const Core::DeviceContainer& container;
|
|
const Core::DeviceQualifier& default_device;
|
|
bool is_input;
|
|
};
|
|
|
|
class Expression
|
|
{
|
|
public:
|
|
virtual ~Expression() = default;
|
|
virtual ControlState GetValue() const = 0;
|
|
virtual void SetValue(ControlState state) = 0;
|
|
virtual int CountNumControls() const = 0;
|
|
virtual void UpdateReferences(ControlFinder& finder) = 0;
|
|
virtual operator std::string() const = 0;
|
|
};
|
|
|
|
enum class ParseStatus
|
|
{
|
|
Successful,
|
|
SyntaxError,
|
|
EmptyExpression,
|
|
};
|
|
|
|
std::pair<ParseStatus, std::unique_ptr<Expression>> ParseExpression(const std::string& expr);
|
|
}
|
|
}
|