px_sequence_generator.h

#ifndef PX_SEQUENCE_GENERATOR_H
#define PX_SEQUENCE_GENERATOR_H
 
// Qt Includes
#include <QRandomGenerator>
#include <QSize>
#include <QPoint>
 
// Qx Includes
#include <qx/core/qx-freeindextracker.h>
 
namespace PxCryptPrivate
{
 
class PxSequenceGenerator
{
//-Inner Class------------------------------------------------------------------------------------------------------
public:
    class State;
 
//-Instance Variables------------------------------------------------------------------------------------------------------
private:
    QByteArray mSeed;
    QRandomGenerator mGenerator;
    Qx::FreeIndexTracker mPixelTracker;
    bool mAtEnd;
 
//-Constructor---------------------------------------------------------------------------------------------------------
public:
    PxSequenceGenerator(const QSize& dim, const QByteArray& seed);
    PxSequenceGenerator(const State& state);
 
//-Instance Functions----------------------------------------------------------------------------------------------
public:
    quint64 pixelCoverage() const;
    quint64 pixelTotal() const;
    State state() const;
 
    qint64 next();
    bool atEnd() const;
 
//-Operators----------------------------------------------------------------------------------------------------------------
public:
    bool operator==(const State& state) const;
};
 
class PxSequenceGenerator::State
{
//-Instance Variables------------------------------------------------------------------------------------------------------
private:
    QByteArray mSeed;
    quint64 mStart;
    quint64 mEnd;
    quint64 mCoverage;
    bool mAtEnd;
 
//-Constructor-------------------------------------------------------------------------------------------------------------
public:
    State(const QByteArray& seed, quint64 start, quint64 end, quint64 coverage, bool atEnd);
 
//-Instance Functions------------------------------------------------------------------------------------------------------
public:
    QByteArray seed() const;
    quint64 start() const;
    quint64 end() const;
    quint64 coverage() const;
    bool atEnd() const;
};
 
}
 
#endif // PX_SEQUENCE_GENERATOR_H