bpsscales.h

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#ifndef BPSSCALES_H
#define BPSSCALES_H

#include "bpscore_global.h"
#include <QMap>
#include <QObject>

class BPSCORE_EXPORT BpsScales : public QObject
{
    Q_OBJECT
    BPS_PRIVATE(BpsScales)

public:
    enum {
        StatusStable    = 0,        // The weight was successfully read and is stable.
        StatusDynamic   = 1,        // The weight was successfully read but is dynamic (moving).
        StatusOverload  = 2,        // The scales is overloaded (above valid maximum weight).
        StatusUnderload = 3,        // The scales is underloaded (below valid minimum weight).
        StatusError     = 4         // The scales is in error state (but still can communicate with host obviously).
    };

    BpsScales(QObject* aParent=0);

    virtual ~BpsScales();

    void setConfig(const QMap<QString,QString>& aConfig);

    QMap<QString,QString> config() const;
    
    virtual bool canTare() const;

    virtual void requestReadWeight() = 0;

    virtual void requestReadTare();

    virtual void requestTakeTare();

    virtual void requestClearTare();

signals:

    void readWeightOk(int aStatus, double aWeight, bool aTared);

    void readWeightError(const QString& aMessage);

    void readTareOk(double aTare);

    void readTareError(const QString& aMessage);

    void takeTareOk();

    void takeTareError(const QString& aMessage);

    void clearTareOk();

    void clearTareError(const QString& aMessage);

    void ok();

    void error(const QString& aMessage);

};

#endif // BPSSCALES_H