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;
}
static
void CALLBACK_CALL_TYPE qpiw_flush_fn( png_structp png_ptr )
{
QPNGImageWriter* qpiw = (QPNGImageWriter*)png_get_io_ptr( png_ptr );
QIODevice* out = qpiw->device();
out->flush();
}
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);
}
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;
}