deviceInterface.h

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/* Copyright 2015 CyberTech Labs Ltd.
 *
 * 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 <QtGlobal>
#include <QMetaType>
#include "declSpec.h"

namespace trikControl {

class TRIKCONTROL_EXPORT DeviceInterface
{
    Q_DISABLE_COPY(DeviceInterface)

public:
public:
    DeviceInterface() = default;
    virtual ~DeviceInterface() = default;

    enum class Status {
        permanentFailure

        , temporaryFailure

        , off

        , starting

        , ready

        , stopping
    };

    static Status combine(const DeviceInterface &underlying, const DeviceInterface::Status &dependent)
    {
        const DeviceInterface::Status status = underlying.status();
        if (status != DeviceInterface::Status::ready) {
            return status;
        }

        return dependent;
    }

    virtual Status status() const = 0;
};

}

Q_DECLARE_METATYPE(trikControl::DeviceInterface *)