PdVariable.h

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/*****************************************************************************
 *
 * Copyright (C) 2018  Wilhelm Hagemeister <hm@igh.de>
 *                     Florian Pose <fp@igh.de>
 *               2024  Bjarne von Horn <vh@igh.de>
 *
 * This file is part of the QtPdCom library.
 *
 * The QtPdCom library 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.
 *
 * The QtPdCom library 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the QtPdCom Library. If not, see
 * <http://www.gnu.org/licenses/>.
 *
 ****************************************************************************/
 
#ifndef PD_PdVariable_H
#define PD_PdVariable_H
 
#include <QtPdCom1/Process.h>
 
#include "PdConnection.h"
 
#include <QObject>
#include <QQmlEngine>
#include <QVariant>
 
#include <chrono>
 
namespace QtPdCom {
 
/****************************************************************************/

class Q_DECL_EXPORT PdVariable: public QObject
{
        Q_OBJECT
        QML_NAMED_ELEMENT(PdVariable)
        QML_ADDED_IN_VERSION(1, 4)
 
        
        Q_PROPERTY(QtPdCom::PdConnection connection READ getConnection WRITE
                           setConnection NOTIFY connectionChanged)

        Q_PROPERTY(
                bool connected READ getDataPresent NOTIFY dataPresentChanged)

        Q_PROPERTY(QVariant value READ getValue WRITE setValue NOTIFY
                           valueChanged)
 
        Q_PROPERTY(QString as_string READ getString NOTIFY valueChanged)

        Q_PROPERTY(QString text READ getValueAsString WRITE setValueAsString
                           NOTIFY valueChanged)

        Q_PROPERTY(QVariant mtime READ getMTimeToDouble NOTIFY valueUpdated)
 
    public:
        PdVariable(QObject * = Q_NULLPTR);
        ~PdVariable();
 
        void clearVariable();
        bool hasVariable() const;
        void clearData();
 
        QVariant getValue() const;
        Q_INVOKABLE void setValue(QVariant);
        QString getValueAsString() const;
        Q_INVOKABLE void setValueAsString(QString);
        bool getDataPresent();
 
        std::chrono::nanoseconds getMTime() const;
        double getMTimeToDouble() const;
 
        QString getString() { return getValue().toString(); }
 
        PdConnection getConnection();
        void setConnection(PdConnection const &);
        void updateConnection(); 
 
        Q_INVOKABLE void inc();
 
    signals:
        void valueChanged(); 
        void valueUpdated(std::chrono::nanoseconds mtime); 
        void pathChanged(QString);
        void connectionChanged();
        void dataPresentChanged(bool);
 
    private:
        class Q_DECL_HIDDEN Impl;
        std::unique_ptr<Impl> impl;
};
 
/****************************************************************************/
 
}  // namespace QtPdCom
 
#endif