//static
TUint32 WidgetUnzipUtilityS60::uncompressedSizeL(const QString& aZipFileName, const TChar& aDriveLetter)
{
RFs fs;
User::LeaveIfError(fs.Connect()); // not possible to continue without RFs
CleanupClosePushL(fs);
TUint64 uncompressedSize(0);
TInt allocUnitSize(8192); // use 8kb cluster size when no information is available
TInt drive(0);
TInt err = fs.CharToDrive(aDriveLetter, drive);
// get cluster size to calculate uncompressed widget size more accurately
if (!err) {
TVolumeIOParamInfo ioInfo;
err = fs.VolumeIOParam(drive, ioInfo);
// VolumeIOParam.iClusterSize contains also possible error code
if (!err && ioInfo.iClusterSize > 0) {
allocUnitSize = ioInfo.iClusterSize;
}
}
QString zipFileName = QDir::toNativeSeparators(aZipFileName);
TPtrC16 zName(reinterpret_cast<const TUint16*>(zipFileName.utf16()));
CZipFile *zipfile = CZipFile::NewL(fs, zName);
CleanupStack::PushL(zipfile);
CZipFileMemberIterator *members = zipfile->GetMembersL();
CleanupStack::PushL(members);
CZipFileMember* member = members->NextL();
while (member != NULL) {
TUint32 fileSize(member->UncompressedSize());
if(fileSize != UINT_MAX)
fileSize = (fileSize + (allocUnitSize - (fileSize % allocUnitSize)));
uncompressedSize += fileSize;
delete member;
member = members->NextL();
}
CleanupStack::PopAndDestroy(3); // members, zipfile, fs.connect
if(uncompressedSize > UINT_MAX)
return UINT_MAX;
return (TUint32)uncompressedSize;
}
// static
QString WidgetUnzipUtilityS60::fileContentsL(const QString& aZipFileName, const QString& aFileName,
const Qt::CaseSensitivity& cs)
{
QString zipFileName = QDir::toNativeSeparators(aZipFileName);
QString contents;
TPtrC16 zName(reinterpret_cast<const TUint16*>(zipFileName.utf16()));
RFs iFs;
User::LeaveIfError(iFs.Connect());
CZipFile *zipfile = CZipFile::NewL(iFs, zName);
CleanupStack::PushL(zipfile);
CZipFileMemberIterator *members = zipfile->GetMembersL();
CZipFileMember* member;
while ((member = members->NextL()) != 0) {
QString filename = QString::fromUtf16(member->Name()->Ptr(), member->Name()->Length());
// If the member is the desired file, extract it
if (!filename.compare(aFileName, cs)) {
RZipFileMemberReaderStream *stream;
zipfile->GetInputStreamL(member, stream);
CleanupStack::PushL(stream);
HBufC8 *buffer = HBufC8::NewLC(member->UncompressedSize());
TPtr8 bufferPtr(buffer->Des());
User::LeaveIfError(stream->Read(bufferPtr, member->UncompressedSize()));
QByteArray data(reinterpret_cast<const char*>(buffer->Ptr()), buffer->Length());
QString ret(data);
CleanupStack::PopAndDestroy(3); // zipfile, stream, buffer
return ret;
}
}
CleanupStack::PopAndDestroy();
return contents;
}
void PosLmUnzipUtil::UnzipFileL(RFs& aFs, TFileName* aFileName)
{
CZipFile* zipFile = NULL;
CZipFileMember* member = NULL;
CZipFileMemberIterator* fileMembers = NULL;
zipFile = CZipFile::NewL(aFs,*aFileName);
CleanupStack::PushL(zipFile);
User::LeaveIfError(zipFile->OpenL());
fileMembers = zipFile->GetMembersL();
CleanupStack::PushL(fileMembers);
member = fileMembers->NextL();
while (member)
{
//You must take ownership of the member object created for you by NextL()!
CleanupStack::PushL(member);
ExtractFileL(aFs, member, zipFile, aFileName);
CleanupStack::PopAndDestroy(); //member
member = fileMembers->NextL();
}
zipFile->Close();
CleanupStack::PopAndDestroy(2); //fileMembers, zipFile
}
