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/****************************************************************************
**
** Definition of TQBuffer class
**
** Created : 930812
**
** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
**
** This file is part of the tools module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQBUFFER_H
#define TQBUFFER_H
#include "tqtglobaldefines.h"
#ifndef TQT_H
#include "tqiodevice.h"
#include "tqstring.h"
#endif // TQT_H
#ifdef USE_QT4
#include <Qt/qbuffer.h>
#endif // USE_QT4
#ifdef USE_QT4
class TQ_EXPORT TQBuffer : public QBuffer
{
public:
#if defined(TQT_ABI_QT4)
typedef TQ_LLONG Offset;
#else
typedef TQ_ULONG Offset;
#endif
#warning Please remember that TQByteArray is no longer explicitly shared. If you get weird crashes while using TQt stream objects please see tqbuffer.h line 69
// NOTE:
// QByteArray was explicitly shared in Qt3
// This is no longer the case in Qt4
// If you get weird crashes inside TQBuffer, it probably means you did something like this:
//
// main() {
// aFunction();
// otherFunction();
// }
//
// aFunction() {
// TQBuffer m_Buffer(QByteArray());
// }
//
// otherFunction() {
// m_Buffer.putch('H');
// }
//
// The QByteArray object was created within aFunction, but as it went out of scope it was destroyed before otherFunction was called
// Therefore, the TQBuffer's internal reference to the TQByteArray was invalid at the time putch() was called
// You could do this instead:
//
// aFunction() {
// TQBuffer m_Buffer();
// m_Buffer.tqsetBufferFromCopy(QByteArray());
// }
TQBuffer() : QBuffer() {}
TQBuffer( TQByteArray &ba ) : QBuffer( &ba, 0 ) {}
TQBuffer( const TQByteArray &ba ) : QBuffer( const_cast<TQByteArray*>(&ba), 0 ) {}
// TQBuffer( TQByteArray ba ) : QBuffer(), internal_ba_copy(ba) { QBuffer::setBuffer(&internal_ba_copy); } // Make a copy of ba
inline int state() const { return isOpen() ? 0x1000 : 0; }
inline int mode() const { return (int) openMode(); }
inline int flags() const { return (int) openMode(); }
inline bool tqopen( int mode ) { return open((OpenModeFlag)mode); }
inline Offset at() const { return pos(); }
inline bool at(Offset offset) { return seek(offset); }
inline Offset tqat() const { return pos(); }
inline bool tqat(Offset offset) { return seek(offset); }
// virtual inline qint64 readBlock(char *data, quint64 maxlen) { return read(data, maxlen); }
// virtual inline qint64 writeBlock(const char *data, quint64 len) { return write(data, len); }
// virtual inline qint64 writeBlock(const QByteArray &data) { return write(data); }
inline qint64 readBlock(char *data, quint64 maxlen) { return read(data, maxlen); }
inline qint64 writeBlock(const char *data, quint64 len) { return write(data, len); }
inline qint64 writeBlock(const QByteArray &data) { return write(data); }
// virtual inline qint64 readData ( char * data, qint64 maxSize ) { return readBlock(data, maxSize); }
// virtual inline qint64 writeData ( const char * data, qint64 maxSize ) { return writeBlock(data, maxSize); }
inline int getch() { char c; return getChar(&c) ? int(uchar(c)) : -1; }
inline int putch(int c) { return putChar(char(c)) ? int(uchar(c)) : -1; }
inline int ungetch(int c) { ungetChar(uchar(c)); return c; }
inline bool isDirectAccess() const { return !isSequential(); }
inline bool isSequentialAccess() const { return isSequential(); }
inline bool isCombinedAccess() const { return false; }
inline bool isBuffered() const { return true; }
inline bool isRaw() const { return false; }
inline bool isSynchronous() const { return true; }
inline bool isAsynchronous() const { return false; }
inline bool isTranslated() const { return (openMode() & Text) != 0; }
inline bool isInactive() const { return !isOpen(); }
inline TQByteArray &buffer() { return static_cast<TQByteArray&>(QBuffer::buffer()); }
inline bool setBuffer( TQByteArray &tqba ) { if (isOpen() == TRUE) return FALSE; QBuffer::setBuffer(&tqba); return TRUE; }
inline bool tqsetBufferFromCopy( TQByteArray tqba ) { if (isOpen() == TRUE) return FALSE; internal_ba_copy = tqba; QBuffer::setBuffer(&internal_ba_copy); return TRUE; }
// inline bool setBuffer( TQByteArray tqba ) { if (isOpen() == TRUE) return FALSE; internal_ba_copy = tqba; QBuffer::setBuffer(&internal_ba_copy); return TRUE; }
public:
typedef int Status;
Status status() const {
#if !defined(QT_NO_QOBJECT)
const QFile *f = qobject_cast<const QFile *>(this);
if (f) return (int) f->error();
#endif
return isOpen() ? 0 /* IO_Ok */ : 8 /* IO_UnspecifiedError */;
}
void resetStatus() {
#if !defined(QT_NO_QOBJECT)
QFile *f = qobject_cast<QFile *>(this);
if (f) f->unsetError();
#endif
}
void setqStatus( int ) { std::cout << "[WARNING] TQBuffer::setqStatus() UNIMPLEMENTED\n\r"; }
void resetqStatus() { resetStatus(); }
private:
TQByteArray internal_ba_copy;
};
#else // USE_QT4
class TQ_EXPORT TQBuffer : public TQIODevice
{
public:
TQBuffer();
TQBuffer( TQByteArray );
~TQBuffer();
TQByteArray buffer() const;
bool setBuffer( TQByteArray );
bool open( int );
void close();
void flush();
Offset size() const;
Offset at() const;
bool at( Offset );
TQ_LONG readBlock( char *p, TQ_ULONG );
TQ_LONG writeBlock( const char *p, TQ_ULONG );
TQ_LONG writeBlock( const TQByteArray& data )
{ return TQIODevice::writeBlock(data); }
TQ_LONG readLine( char *p, TQ_ULONG );
int getch();
int putch( int );
int ungetch( int );
protected:
TQByteArray a;
private:
uint a_len;
uint a_inc;
private: // Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
TQBuffer( const TQBuffer & );
TQBuffer &operator=( const TQBuffer & );
#endif
};
inline TQByteArray TQBuffer::buffer() const
{ return a; }
inline TQIODevice::Offset TQBuffer::size() const
{ return (Offset)a.size(); }
inline TQIODevice::Offset TQBuffer::at() const
{ return ioIndex; }
#endif // USE_QT4
#endif // TQBUFFER_H
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