/**************************************************************************** ** ** 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 #include #include #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(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(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(&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