Register16Controller.hpp

#ifndef H_EXTENSIONS_CUTEHMI_MODBUS_2_INCLUDE_CUTEHMI_MODBUS_REGISTER16CONTROLLER_HPP
#define H_EXTENSIONS_CUTEHMI_MODBUS_2_INCLUDE_CUTEHMI_MODBUS_REGISTER16CONTROLLER_HPP
 
#include "internal/common.hpp"
#include "internal/RegisterControllerMixin.hpp"
#include "Register16.hpp"
#include "AbstractRegisterController.hpp"
 
#include <QBasicTimer>
 
namespace cutehmi {
namespace modbus {
 
class CUTEHMI_MODBUS_API Register16Controller:
    public AbstractRegisterController,
    protected internal::RegisterControllerMixin<Register16Controller>
{
        Q_OBJECT
 
        friend class internal::RegisterControllerMixin<Register16Controller>;
        typedef internal::RegisterControllerMixin<Register16Controller> Mixin;
 
    public:
        enum Encoding {
            INT16,
            UINT16
        };
        Q_ENUM(Encoding)
 
        static constexpr qreal INITIAL_VALUE = 0.0;
        static constexpr qreal INITIAL_VALUE_SCALE = 1.0;
        static constexpr Encoding INITIAL_ENCODING = UINT16;
 
        Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged)
        Q_PROPERTY(qreal valueScale READ valueScale WRITE setValueScale NOTIFY valueScaleChanged)
        Q_PROPERTY(Encoding encoding READ encoding WRITE setEncoding NOTIFY encodingChanged)
 
        Register16Controller(QObject * parent = nullptr);
 
        ~Register16Controller() override;
 
        qreal value() const;
 
        void setValue(qreal value);
 
        qreal valueScale() const;
 
        void setValueScale(qreal valueScale);
 
        Encoding encoding() const;
 
        void setEncoding(Encoding encoding);
 
    public slots:
        void writeValue();
 
    signals:
        void valueChanged();
 
        void valueUpdated();
 
        void valueScaleChanged();
 
        void encodingChanged();
 
        void valueWritten();
 
        void valueFailed();
 
        void valueMismatch();
 
    protected:
        virtual AbstractDevice::Function readRegistersFunction() const = 0;
 
        virtual AbstractDevice::Function writeRegisterFunction() const = 0;
 
        virtual void requestWriteRegister(quint16 address, quint16 value, QUuid * requestId) const = 0;
 
        virtual Register16 * registerAt(quint16 address) const = 0;
 
        void timerEvent(QTimerEvent * event) override;
 
        quint16 bytes() const override;
 
        void onDeviceDestroyed() override;
 
    protected slots:
        void onRequestCompleted(QJsonObject request, QJsonObject reply) override;
 
        void resetRegister();
 
    private:
        void updateValue();
 
        void updateValue(quint16 value);
 
        void updateValue(const QJsonValue & value);
 
        static qreal Decode(quint16 value, Encoding encoding);
 
        static quint16 Encode(qreal value, Encoding encoding);
 
        static bool ValidateEncoding(qreal value, Encoding encoding);
 
        void requestWrite(qreal value);
 
        bool verifyRegisterValue() const;
 
    private:
        struct Members
        {
            qreal value;
            qreal valueScale;
            Encoding encoding;
            bool postponedWritePending;
            bool adjustingValue;
            qreal requestedValue;
            Register16 * register16;
            QUuid requestId;
            QBasicTimer writeTimer;
 
            Members():
                value(INITIAL_VALUE),
                valueScale(INITIAL_VALUE_SCALE),
                encoding(INITIAL_ENCODING),
                postponedWritePending(false),
                adjustingValue(false),
                requestedValue(0.0),
                register16(nullptr)
            {
            }
        };
 
        MPtr<Members> m;
};
 
}
}
 
#endif
 
//(c)C: Copyright © 2019, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
//(c)C: CuteHMI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
//(c)C: You should have received a copy of the GNU Lesser General Public License along with CuteHMI.  If not, see <https://www.gnu.org/licenses/>.