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/* Copyright 2013-2017 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <QObject>
#include <memory>
#include "Setting.h"
/*!
* \brief A setting that 'overrides another.' based on the value of a 'gate' setting
* If 'gate' evaluates to true, the override stores and returns data
* If 'gate' evaluates to false, the original does,
*/
class PassthroughSetting : public Setting
{
Q_OBJECT
public:
explicit PassthroughSetting(std::shared_ptr<Setting> overriden, std::shared_ptr<Setting> gate);
virtual QVariant defValue() const;
virtual QVariant get() const;
virtual void set (QVariant value);
virtual void reset();
private:
bool isOverriding() const;
protected:
std::shared_ptr<Setting> m_other;
std::shared_ptr<Setting> m_gate;
};
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