bool QUnZip::getCurrentFile(QIODevice &d) {
if (!isOpen()) {
qWarning("QUnZip::locateFile File not open.");
return false;
}
if (!d.isWritable()) {
qWarning("QUnZip::getCurrentFile File not open for writing.");
return false;
}
if (unzOpenCurrentFile(_d->_unzFile) != UNZ_OK) {
qWarning("QUnZip::getCurrentFile unzOpenCurrentFile failed.");
return false;
}
char * buf = new char[1024];
Q_CHECK_PTR(buf);
int len;
while ((len = ::unzReadCurrentFile(_d->_unzFile,
buf, 1024)) > 0) {
d.writeBlock(buf, len);
}
delete []buf;
::unzCloseCurrentFile(_d->_unzFile);
if (d.isBuffered())
d.flush();
if (len == 0) {
return true;
}
qWarning("QUnZip::getCurrentFile unzReadCurrentFile failed.");
return false;
}
bool BString::writeToDevice(QIODevice &device)
{
if (!m_valid)
return false;
QString str = QString("%1:").
arg(get_len());
QCString utfString = str.utf8();
/* Don't write null terminator */
device.writeBlock (utfString.data(), utfString.size() - 1);
// Output the actual data
device.writeBlock (m_data.data(), m_data.size() - 1);
// Done
return true;
}
static
void CALLBACK_CALL_TYPE qpiw_write_fn( png_structp png_ptr, png_bytep data, png_size_t length )
{
QPNGImageWriter* qpiw = (QPNGImageWriter*)png_get_io_ptr( png_ptr );
QIODevice* out = qpiw->device();
uint nr = out->writeBlock( (char*)data, length );
if ( nr != length ) {
png_error( png_ptr, "Write Error" );
return;
}
}
bool BList::writeToDevice(QIODevice &device)
{
if (!m_valid)
return false;
const char *l_str = "l";
const char *e_str = "e";
Q_LONG written = 0, result = 0;
written = device.writeBlock (l_str, 1);
while (written < 1)
{
if (written < 0 || result < 0)
return false;
result = device.writeBlock (l_str, 1);
written += result;
}
BBaseVectorIterator iter;
for (iter = begin(); iter != end(); ++iter)
{
if (!((*iter)->writeToDevice (device)))
return false;
}
written = device.writeBlock (e_str, 1);
while (written < 1)
{
if (written < 0 || result < 0)
return false;
result = device.writeBlock (e_str, 1);
written += result;
}
return true;
}
static
void qt_term_destination(j_compress_ptr cinfo)
{
my_jpeg_destination_mgr* dest = (my_jpeg_destination_mgr*)cinfo->dest;
QIODevice* dev = dest->iio->ioDevice();
int n = max_buf - dest->free_in_buffer;
if ( dev->writeBlock( (char*)dest->buffer, n ) != n )
qt_exit_on_error(cinfo, dev);
dev->flush();
qt_exit_on_error(cinfo, dev);
}
static
boolean qt_empty_output_buffer(j_compress_ptr cinfo)
{
my_jpeg_destination_mgr* dest = (my_jpeg_destination_mgr*)cinfo->dest;
QIODevice* dev = dest->iio->ioDevice();
if ( dev->writeBlock( (char*)dest->buffer, max_buf ) != max_buf )
qt_exit_on_error(cinfo, dev);
dest->next_output_byte = dest->buffer;
dest->free_in_buffer = max_buf;
#if defined(_OS_UNIXWARE7_)
return B_TRUE;
#else
return TRUE;
#endif
}
bool QUnZip::getCurrentFileRaw(QIODevice &d, int &method,
unsigned long &crc, unsigned long &uncompressed_size) {
if (!isOpen()) {
qWarning("QUnZip::getCurrentFileRaw File not open.");
return false;
}
if (!d.isWritable()) {
qWarning("QUnZip::getCurrentFileRaw File not open for writing.");
return false;
}
if (unzOpenCurrentFile2(_d->_unzFile, &method, NULL, 1) != UNZ_OK) {
qWarning("QUnZip::getCurrentFileRaw unzOpenCurrentFile2 failed.");
return false;
}
unz_file_info fi;
if (::unzGetCurrentFileInfo(_d->_unzFile, &fi,
NULL, 0 , NULL, 0, NULL, 0) != UNZ_OK) {
qWarning("QUnZip::getCurrentFileRaw unzGetCurrentFileInfo failed.");
return false;
}
crc = fi.crc;
uncompressed_size = fi.uncompressed_size;
char * buf = new char[1024];
Q_CHECK_PTR(buf);
int len;
while ((len = ::unzReadCurrentFile(_d->_unzFile,
buf, 1024)) > 0) {
d.writeBlock(buf, len);
}
delete[] buf;
::unzCloseCurrentFile(_d->_unzFile);
if (d.isBuffered())
d.flush();
if (len == 0) {
return true;
}
qWarning("QUnZip::getCurrentFileRaw unzReadCurrentFile failed.");
return false;
}
void test_block_write(const QString &fileName)
{
QIODevice *dev = KFilterDev::deviceForFile(fileName);
if(!dev)
{
kdWarning() << "dev=0" << endl;
return;
}
if(!dev->open(IO_WriteOnly))
{
kdWarning() << "open failed " << endl;
return;
}
QCString s("hello\n");
int ret = dev->writeBlock(s, s.size() - 1);
kdDebug() << "writeBlock ret=" << ret << endl;
// ret = dev->writeBlock( s, s.size()-1 );
// kdDebug() << "writeBlock ret=" << ret << endl;
dev->close();
delete dev;
}