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/****************************************************************************
**
** Definition of TQIODevice class
**
** Created : 940913
**
** 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 TQIODEVICE_H
#define TQIODEVICE_H
#include "tqtglobaldefines.h"
#ifndef TQT_H
#include "tqglobal.h"
#include "tqcstring.h"
#endif // TQT_H
#ifdef USE_QT4
#include <Qt/qiodevice.h>
#include <Qt/qfile.h>
#include <iostream>
#endif // USE_QT4
#ifdef USE_QT4
#define IO_Direct 0x0100 // direct access tqdevice
#define IO_Sequential 0x0200 // sequential access tqdevice
#define IO_Combined 0x0300 // combined direct/sequential
#define IO_TypeMask 0x0f00
// IO handling modes
#define IO_Raw 0x0040 // raw access (not buffered)
#define IO_Async 0x0080 // asynchronous mode
// IO tqdevice open modes
#define IO_ReadOnly (QIODevice::OpenModeFlag)0x0001 // readable tqdevice
#define IO_WriteOnly (QIODevice::OpenModeFlag)0x0002 // writable tqdevice
#define IO_ReadWrite (QIODevice::OpenModeFlag)0x0003 // read+write tqdevice
#define IO_Append (QIODevice::OpenModeFlag)0x0004 // append
#define IO_Truncate (QIODevice::OpenModeFlag)0x0008 // truncate tqdevice
#define IO_Translate (QIODevice::OpenModeFlag)0x0010 // translate CR+LF
#define IO_ModeMask (QIODevice::OpenModeFlag)0x00ff
// IO tqdevice state
#define IO_Open 0x1000 // tqdevice is open
#define IO_StateMask 0xf000
// IO tqdevice status
#define IO_Ok 0
#define IO_ReadError 1 // read error
#define IO_WriteError 2 // write error
#define IO_FatalError 3 // fatal unrecoverable error
#define IO_ResourceError 4 // resource limitation
#define IO_OpenError 5 // cannot open tqdevice
#define IO_ConnectError 5 // cannot connect to tqdevice
#define IO_AbortError 6 // abort error
#define IO_TimeOutError 7 // time out
#define IO_UnspecifiedError 8 // unspecified error
class TQ_EXPORT TQIODevice : public QIODevice
{
public:
#if defined(TQT_ABI_QT4)
typedef TQ_LLONG Offset;
#else
typedef TQ_ULONG Offset;
#endif
TQIODevice() : QIODevice() {}
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; }
virtual void flush() = 0;
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 bool open( int mode ) = 0;
protected:
void setFlags( int f ) { setOpenMode((QIODevice::OpenModeFlag)f); }
void setType( int ) { printf("[WARNING] TQIODevice::setType() unimplemented\n\r"); }
void setMode( int f ) { setOpenMode((QIODevice::OpenModeFlag)f); }
void setState( int state ) {
switch (state) {
case (IO_Open):
QIODevice::open(openMode());
break;
}
}
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] TQIODevice::setqStatus() UNIMPLEMENTED\n\r"; }
void resetqStatus() { resetStatus(); }
protected:
friend class TQFile;
friend class TQIODeviceSource;
friend class TQImageIO;
friend class TQBuffer;
public:
// Interoperability
static TQIODevice& convertFromQIODevice( QIODevice& qiod );
};
// Interoperability
inline static TQIODevice& convertFromQIODevice( QIODevice& qiod ) {
return (*static_cast<TQIODevice*>(&qiod));
}
#else // USE_QT4
// IO tqdevice access types
#define IO_Direct 0x0100 // direct access tqdevice
#define IO_Sequential 0x0200 // sequential access tqdevice
#define IO_Combined 0x0300 // combined direct/sequential
#define IO_TypeMask 0x0f00
// IO handling modes
#define IO_Raw 0x0040 // raw access (not buffered)
#define IO_Async 0x0080 // asynchronous mode
// IO tqdevice open modes
#define IO_ReadOnly 0x0001 // readable tqdevice
#define IO_WriteOnly 0x0002 // writable tqdevice
#define IO_ReadWrite 0x0003 // read+write tqdevice
#define IO_Append 0x0004 // append
#define IO_Truncate 0x0008 // truncate tqdevice
#define IO_Translate 0x0010 // translate CR+LF
#define IO_ModeMask 0x00ff
// IO tqdevice state
#define IO_Open 0x1000 // tqdevice is open
#define IO_StateMask 0xf000
// IO tqdevice status
#define IO_Ok 0
#define IO_ReadError 1 // read error
#define IO_WriteError 2 // write error
#define IO_FatalError 3 // fatal unrecoverable error
#define IO_ResourceError 4 // resource limitation
#define IO_OpenError 5 // cannot open tqdevice
#define IO_ConnectError 5 // cannot connect to tqdevice
#define IO_AbortError 6 // abort error
#define IO_TimeOutError 7 // time out
#define IO_UnspecifiedError 8 // unspecified error
class TQ_EXPORT TQIODevice
{
public:
#if defined(TQT_ABI_QT4)
typedef TQ_LLONG Offset;
#else
typedef TQ_ULONG Offset;
#endif
TQIODevice();
virtual ~TQIODevice();
int flags() const { return ioMode; }
int mode() const { return ioMode & IO_ModeMask; }
int state() const { return ioMode & IO_StateMask; }
bool isDirectAccess() const { return ((ioMode & IO_Direct) == IO_Direct); }
bool isSequentialAccess() const { return ((ioMode & IO_Sequential) == IO_Sequential); }
bool isCombinedAccess() const { return ((ioMode & IO_Combined) == IO_Combined); }
bool isBuffered() const { return ((ioMode & IO_Raw) != IO_Raw); }
bool isRaw() const { return ((ioMode & IO_Raw) == IO_Raw); }
bool isSynchronous() const { return ((ioMode & IO_Async) != IO_Async); }
bool isAsynchronous() const { return ((ioMode & IO_Async) == IO_Async); }
bool isTranslated() const { return ((ioMode & IO_Translate) == IO_Translate); }
bool isReadable() const { return ((ioMode & IO_ReadOnly) == IO_ReadOnly); }
bool isWritable() const { return ((ioMode & IO_WriteOnly) == IO_WriteOnly); }
bool isReadWrite() const { return ((ioMode & IO_ReadWrite) == IO_ReadWrite); }
bool isInactive() const { return state() == 0; }
bool isOpen() const { return state() == IO_Open; }
int status() const { return ioSt; }
void resetqStatus() { ioSt = IO_Ok; }
virtual bool open( int mode ) = 0;
virtual void close() = 0;
virtual void flush() = 0;
virtual Offset size() const = 0;
virtual Offset at() const;
virtual bool at( Offset );
virtual bool atEnd() const;
bool reset() { return at(0); }
virtual TQ_LONG readBlock( char *data, TQ_ULONG maxlen ) = 0;
virtual TQ_LONG writeBlock( const char *data, TQ_ULONG len ) = 0;
virtual TQ_LONG readLine( char *data, TQ_ULONG maxlen );
TQ_LONG writeBlock( const TQByteArray& data );
virtual TQByteArray readAll();
virtual int getch() = 0;
virtual int putch( int ) = 0;
virtual int ungetch( int ) = 0;
protected:
void setFlags( int f ) { ioMode = f; }
void setType( int );
void setMode( int );
void setState( int );
void setqStatus( int );
Offset ioIndex;
private:
int ioMode;
int ioSt;
private: // Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
TQIODevice( const TQIODevice & );
TQIODevice &operator=( const TQIODevice & );
#endif
};
#endif // USE_QT4
#endif // TQIODEVICE_H
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