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#ifndef QBUFFER_H
#define QBUFFER_H

#include <QtCore/qiodevice.h>
#include <QtCore/qbytearray.h>

QT_BEGIN_HEADER

QT_MODULE(Core)

class QObject;
class QBufferPrivate;

class Q_CORE_EXPORT QBuffer : public QIODevice
{
#ifndef QT_NO_QOBJECT
    Q_OBJECT
#endif

public:
#ifndef QT_NO_QOBJECT
     explicit QBuffer(QObject *parent = 0);
     QBuffer(QByteArray *buf, QObject *parent = 0);
#else
     QBuffer();
     explicit QBuffer(QByteArray *buf);
#endif
    ~QBuffer();

    QByteArray &buffer();
    const QByteArray &buffer() const;
    void setBuffer(QByteArray *a);

    void setData(const QByteArray &data);
    inline void setData(const char *data, int len);
    const QByteArray &data() const;

    bool open(OpenMode openMode);

    void close();
    qint64 size() const;
    qint64 pos() const;
    bool seek(qint64 off);
    bool atEnd() const;
    bool canReadLine() const;

protected:
    qint64 readData(char *data, qint64 maxlen);
    qint64 writeData(const char *data, qint64 len);

private:
    Q_DECLARE_PRIVATE(QBuffer)
    Q_DISABLE_COPY(QBuffer)

    Q_PRIVATE_SLOT(d_func(), void _q_emitSignals())
};

inline void QBuffer::setData(const char *adata, int alen)
{ setData(QByteArray(adata, alen)); }

QT_END_HEADER

#endif // QBUFFER_H
