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#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;
}
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