diff options
Diffstat (limited to 'src/ftextstream.cpp')
| -rw-r--r-- | src/ftextstream.cpp | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/src/ftextstream.cpp b/src/ftextstream.cpp new file mode 100644 index 0000000..f72185f --- /dev/null +++ b/src/ftextstream.cpp @@ -0,0 +1,259 @@ +#include "ftextstream.h" +#include <qfile.h> + +//---------------------------------------------------------------------------- + +class QGStringBuffer : public QIODevice +{ + public: + QGStringBuffer( QGString* str ); + ~QGStringBuffer(); + bool open( int m ); + void close(); + void flush(); + uint size() const; + int at() const; + bool at( int pos ); + int readBlock( char *, uint) { return -1; } + int writeBlock( const char *p, uint len ); + int getch() { return -1; } + int putch( int ch ); + int ungetch( int ) { return -1; } + + protected: + QGString* m_str; + + private: // Disabled copy constructor and operator= + QGStringBuffer( const QGStringBuffer & ); + QGStringBuffer &operator=( const QGStringBuffer & ); +}; + +QGStringBuffer::QGStringBuffer( QGString* str ) : m_str(str) +{ + //printf("QGStringBuffer::QGStringBuffer(%p)\n",str); +} + +QGStringBuffer::~QGStringBuffer() +{ +} + +bool QGStringBuffer::open( int m ) +{ + if ( !m_str ) + { +#if defined(CHECK_STATE) + qWarning( "QGStringBuffer::open: No string" ); +#endif + return FALSE; + } + if ( isOpen() ) + { // buffer already open +#if defined(CHECK_STATE) + qWarning( "QGStringBuffer::open: Buffer already open" ); +#endif + return FALSE; + } + setMode( m ); + if ( m & IO_Truncate ) + { // truncate buffer + m_str->truncate( 0 ); + } + if ( m & IO_Append ) + { // append to end of buffer + ioIndex = m_str->length(); + } + else + { + ioIndex = 0; + } + setState( IO_Open ); + setStatus( 0 ); + return TRUE; +} + +void QGStringBuffer::close() +{ + if ( isOpen() ) + { + setFlags( IO_Direct ); + ioIndex = 0; + } +} + +void QGStringBuffer::flush() +{ +} + +uint QGStringBuffer::size() const +{ + return m_str ? m_str->length() : 0; +} + +int QGStringBuffer::at() const +{ + return ioIndex; +} + +bool QGStringBuffer::at( int pos ) +{ +#if defined(CHECK_STATE) + if ( !isOpen() ) + { + qWarning( "QGStringBuffer::at: Buffer is not open" ); + return FALSE; + } +#endif + if ( (uint)pos >= m_str->length() ) + { +#if defined(CHECK_RANGE) + qWarning( "QGStringBuffer::at: Index %d out of range", pos ); +#endif + return FALSE; + } + + ioIndex = pos; + return TRUE; +} + +int QGStringBuffer::writeBlock( const char *p, uint len ) +{ + //printf("QGStringBuffer::writeBlock(%p,%d) m_str=%p ioIndex=%d\n",p,len, + // m_str,ioIndex); + m_str->enlarge(ioIndex+len+1); + memcpy(m_str->data()+ioIndex,p,len); + ioIndex+=len; + m_str->data()[ioIndex]='\0'; + m_str->setLen(ioIndex); + return len; +} + +int QGStringBuffer::putch( int ch ) +{ + //printf("QGStringBuffer::putch(%d) m_str=%p ioIndex=%d\n", + // ch,m_str,ioIndex); + m_str->enlarge(ioIndex+2); + m_str->data()[ioIndex] = (char)ch; + ioIndex++; + m_str->data()[ioIndex] = '\0'; + m_str->setLen(ioIndex); + return ch; +} + + +//---------------------------------------------------------------------------- + +FTextStream::FTextStream() +{ + m_dev = 0; + m_owndev = FALSE; +} + +FTextStream::FTextStream( QIODevice *dev ) +{ + m_dev = dev; + m_owndev = FALSE; +} + +FTextStream::FTextStream( QGString *s ) +{ + m_dev = new QGStringBuffer(s); + ((QGStringBuffer*)m_dev)->open( IO_WriteOnly ); + m_owndev = TRUE; +} + +FTextStream::FTextStream( FILE *fh ) +{ + m_dev = new QFile; + ((QFile *)m_dev)->open( IO_WriteOnly, fh); +} + +FTextStream::~FTextStream() +{ + if (m_owndev) delete m_dev; + m_dev = 0; +} + +QIODevice *FTextStream::device() const +{ + return m_dev; +} + +void FTextStream::setDevice( QIODevice *dev ) +{ + if (m_owndev) + { + delete m_dev; + m_owndev = FALSE; + } + m_dev = dev; +} + +void FTextStream::unsetDevice() +{ + setDevice(0); +} + +FTextStream &FTextStream::output_int( ulong n, bool neg ) +{ + char buf[20]; + char *p = &buf[19]; + *p = '\0'; + if ( neg ) + { + n = (ulong)(-(long)n); + } + do + { + *--p = ((int)(n%10)) + '0'; + n /= 10; + } while ( n ); + if ( neg ) *--p = '-'; + return operator<<(p); +} + +FTextStream &FTextStream::operator<<( signed short i ) +{ + return output_int( i, i < 0 ); +} + +FTextStream &FTextStream::operator<<( unsigned short i ) +{ + return output_int( i, FALSE ); +} + +FTextStream &FTextStream::operator<<( signed int i ) +{ + return output_int( i, i < 0 ); +} + +FTextStream &FTextStream::operator<<( unsigned int i ) +{ + return output_int( i, FALSE ); +} + +FTextStream &FTextStream::operator<<( signed long i ) +{ + return output_int( i, i < 0 ); +} + +FTextStream &FTextStream::operator<<( unsigned long i ) +{ + return output_int( i, FALSE ); +} + +FTextStream &FTextStream::operator<<( float f ) +{ + return *this << (double)f; +} + +FTextStream &FTextStream::operator<<( double d ) +{ + char buf[64]; + sprintf(buf,"%f",d); + return *this << buf; +} + + + + + |