QStringBuffer Class Reference

Inheritance diagram for QStringBuffer:

[legend]Collaboration diagram for QStringBuffer:

[legend]List of all members.

Public Member Functions
	QStringBuffer (QString *str)
	~QStringBuffer ()
bool	open (int m)
void	close ()
void	flush ()
Offset	size () const
Offset	at () const
bool	at (Offset pos)
Q_LONG	readBlock (char *p, Q_ULONG len)
Q_LONG	writeBlock (const char *p, Q_ULONG len)
int	getch ()
int	putch (int ch)
int	ungetch (int ch)
Protected Attributes
QString *	s
Private Member Functions
	QStringBuffer (const QStringBuffer &)
QStringBuffer &	operator= (const QStringBuffer &)

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Constructor & Destructor Documentation

QStringBuffer::QStringBuffer (  QString *  str  )

Definition at line 310 of file qtextstream.cpp. References s.

QStringBuffer::~QStringBuffer (   )

Definition at line 315 of file qtextstream.cpp.

QStringBuffer::QStringBuffer (  const QStringBuffer &   )  [private]

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Member Function Documentation

bool QStringBuffer::at (  Offset  pos  )  [virtual]

Virtual function that sets the I/O device position to pos. Returns TRUE if the position was successfully set, i.e. pos is within range; otherwise returns FALSE. See also: size() Reimplemented from QIODevice. Definition at line 370 of file qtextstream.cpp. References FALSE, QIODevice::ioIndex, QIODevice::isOpen(), QString::length(), qWarning(), s, and TRUE.

QIODevice::Offset QStringBuffer::at (   )  const [virtual]

Virtual function that returns the current I/O device position. This is the position of the data read/write head of the I/O device. See also: size() Reimplemented from QIODevice. Definition at line 365 of file qtextstream.cpp. References QIODevice::ioIndex.

void QStringBuffer::close (  void   )  [virtual]

Closes the I/O device. This virtual function must be reimplemented by all subclasses. See also: open() Implements QIODevice. Definition at line 348 of file qtextstream.cpp. References IO_Direct, QIODevice::ioIndex, QIODevice::isOpen(), and QIODevice::setFlags().

void QStringBuffer::flush (   )  [virtual]

Flushes an open I/O device. This virtual function must be reimplemented by all subclasses. Implements QIODevice. Definition at line 356 of file qtextstream.cpp.

int QStringBuffer::getch (   )  [virtual]

Reads a single byte/character from the I/O device. Returns the byte/character read, or -1 if the end of the I/O device has been reached. This virtual function must be reimplemented by all subclasses. See also: putch(), ungetch() Implements QIODevice. Definition at line 449 of file qtextstream.cpp. References IO_ReadError, QIODevice::ioIndex, QIODevice::isOpen(), QIODevice::isReadable(), QString::length(), qWarning(), s, QIODevice::setStatus(), and QString::unicode().

bool QStringBuffer::open (  int  m  )  [virtual]

Opens the I/O device using the specified mode. Returns TRUE if the device was successfully opened; otherwise returns FALSE. The mode parameter mode must be an OR'ed combination of the following flags. Mode flags Meaning IO_Raw specifies raw (unbuffered) file access. IO_ReadOnly opens a file in read-only mode. IO_WriteOnly opens a file in write-only mode. IO_ReadWrite opens a file in read/write mode. IO_Append sets the file index to the end of the file. IO_Truncate truncates the file. IO_Translate enables carriage returns and linefeed translation for text files under MS-DOS, Windows and Macintosh. On Unix systems this flag has no effect. Use with caution as it will also transform every linefeed written to the file into a CRLF pair. This is likely to corrupt your file if you write write binary data. Cannot be combined with IO_Raw. This virtual function must be reimplemented by all subclasses. See also: close() Implements QIODevice. Definition at line 320 of file qtextstream.cpp. References FALSE, IO_Append, IO_Open, IO_Truncate, QIODevice::ioIndex, QIODevice::isOpen(), QString::length(), qWarning(), s, QIODevice::setMode(), QIODevice::setState(), QIODevice::setStatus(), TRUE, and QString::truncate().

QStringBuffer& QStringBuffer::operator= (  const QStringBuffer &   )  [private]

int QStringBuffer::putch (  int  ch  )  [virtual]

Writes the character ch to the I/O device. Returns ch, or -1 if an error occurred. This virtual function must be reimplemented by all subclasses. See also: getch(), ungetch() Implements QIODevice. Definition at line 468 of file qtextstream.cpp. References writeBlock().

Q_LONG QStringBuffer::readBlock (  char *  p, Q_ULONG  len )  [virtual]

Reads at most maxlen bytes from the I/O device into data and returns the number of bytes actually read. This function should return -1 if a fatal error occurs and should return 0 if there are no bytes to read. The device must be opened for reading, and data must not be 0. This virtual function must be reimplemented by all subclasses. See also: writeBlock() isOpen() isReadable() Implements QIODevice. Definition at line 393 of file qtextstream.cpp. References IO_ReadError, QIODevice::ioIndex, QIODevice::isOpen(), QIODevice::isReadable(), QString::length(), qWarning(), s, QIODevice::setStatus(), and QString::unicode().

QIODevice::Offset QStringBuffer::size (   )  const [virtual]

Virtual function that returns the size of the I/O device. See also: at() Implements QIODevice. Definition at line 360 of file qtextstream.cpp. References QString::length(), and s.

int QStringBuffer::ungetch (  int  ch  )  [virtual]

Puts the character ch back into the I/O device and decrements the index position if it is not zero. This function is normally called to "undo" a getch() operation. Returns ch, or -1 if an error occurred. This virtual function must be reimplemented by all subclasses. See also: getch(), putch() Implements QIODevice. Definition at line 477 of file qtextstream.cpp. References QIODevice::ioIndex, QIODevice::isOpen(), QIODevice::isReadable(), and qWarning().

Q_LONG QStringBuffer::writeBlock (  const char *  p, Q_ULONG  len )  [virtual]

Writes len bytes from data to the I/O device and returns the number of bytes actually written. This function should return -1 if a fatal error occurs. This virtual function must be reimplemented by all subclasses. See also: readBlock() Implements QIODevice. Definition at line 420 of file qtextstream.cpp. References QIODevice::ioIndex, QIODevice::isOpen(), QIODevice::isWritable(), qWarning(), QString::replace(), and s. Referenced by putch().

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Member Data Documentation

QString* QStringBuffer::s [protected]

Definition at line 302 of file qtextstream.cpp. Referenced by at(), getch(), open(), QStringBuffer(), readBlock(), size(), and writeBlock().

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The documentation for this class was generated from the following file:

• qmake/tools/qtextstream.cpp

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