bool ResizeFileSystemJob::run(Report& parent)
{
Q_ASSERT(partition().fileSystem().firstSector() != -1);
Q_ASSERT(partition().fileSystem().lastSector() != -1);
Q_ASSERT(newLength() <= partition().length());
if (partition().fileSystem().firstSector() == -1 || partition().fileSystem().lastSector() == -1 || newLength() > partition().length())
{
kWarning() << "file system first sector: " << partition().fileSystem().firstSector() << ", last sector: " << partition().fileSystem().lastSector() << ", new length: " << newLength() << ", partition length: " << partition().length();
return false;
}
bool rval = false;
Report* report = jobStarted(parent);
if (partition().fileSystem().length() == newLength())
{
report->line() << i18ncp("@info/plain", "The file system on partition <filename>%2</filename> already has the requested length of 1 sector.", "The file system on partition <filename>%2</filename> already has the requested length of %1 sectors.", newLength(), partition().deviceNode());
rval = true;
}
else
{
report->line() << i18nc("@info/plain", "Resizing file system from %1 to %2 sectors.", partition().fileSystem().length(), newLength());
FileSystem::CommandSupportType support = (newLength() < partition().fileSystem().length()) ? partition().fileSystem().supportShrink() : partition().fileSystem().supportGrow();
switch(support)
{
case FileSystem::cmdSupportBackend:
{
Report* childReport = report->newChild();
childReport->line() << i18nc("@info/plain", "Resizing a %1 file system using internal backend functions.", partition().fileSystem().name());
rval = resizeFileSystemBackend(*childReport);
break;
}
case FileSystem::cmdSupportFileSystem:
{
const qint64 newLengthInByte = Capacity(newLength() * device().logicalSectorSize()).toInt(Capacity::Byte);
rval = partition().fileSystem().resize(*report, partition().deviceNode(), newLengthInByte);
break;
}
default:
report->line() << i18nc("@info/plain", "The file system on partition <filename>%1</filename> cannot be resized because there is no support for it.", partition().deviceNode());
break;
}
if (rval)
partition().fileSystem().setLastSector(partition().fileSystem().firstSector() + newLength() - 1);
}
jobFinished(*report, rval);
return rval;
}
bool ResizeFileSystemJob::resizeFileSystemBackend(Report& report)
{
bool rval = false;
CoreBackendDevice* backendDevice = CoreBackendManager::self()->backend()->openDevice(device().deviceNode());
if (backendDevice)
{
CoreBackendPartitionTable* backendPartitionTable = backendDevice->openPartitionTable();
if (backendPartitionTable)
{
connect(CoreBackendManager::self()->backend(), SIGNAL(progress(int)), this, SIGNAL(progress(int)));
rval = backendPartitionTable->resizeFileSystem(report, partition(), newLength());
disconnect(CoreBackendManager::self()->backend(), SIGNAL(progress(int)), this, SIGNAL(progress(int)));
if (rval)
{
report.line() << i18nc("@info/plain", "Successfully resized file system using internal backend functions.");
backendPartitionTable->commit();
}
delete backendPartitionTable;
}
else
report.line() << i18nc("@info/plain", "Could not open partition <filename>%1</filename> while trying to resize the file system.", partition().deviceNode());
delete backendDevice;
}
EXPORT_C TInt AknPhoneNumberTextUtils::CharsThatFitOnRight(
const TDesC& aText,
TInt aLineWidth,
const CFont& aFont )
{
// Current candidate text for fitting text
TPtrC currentText(aText);
// These two variables are converged by this algorithm until they differ by one
// Set max chars to be total length + 1, for the sake of the algorithm
TInt minCharsFromRightThatDoNotFit( aText.Length() + 1 );
TInt maxCharsFromRightThatFit(0); // must start at 0
// some incidentally used lengths
TInt currentLength(0); // arbitrary init value
TInt charsThatFitOnLeft(0); // arbitrary init value
TInt newLength(0); // arbitrary init value
while ( (minCharsFromRightThatDoNotFit - maxCharsFromRightThatFit) != 1 )
{
// At the top of the loop, all state is held by currentText itself, and the two
// maxCharsXXX variables.
currentLength = currentText.Length();
charsThatFitOnLeft = aFont.TextCount( currentText, aLineWidth);
if ( charsThatFitOnLeft == currentLength ) // Does this text fit ?
{
maxCharsFromRightThatFit = Max( maxCharsFromRightThatFit, charsThatFitOnLeft );
// If this text cannot be made any bigger, and still fit, then bail out
if ( (maxCharsFromRightThatFit + 1) >= minCharsFromRightThatDoNotFit )
{
// We can exit the loop now. Just fall out and the while test will handle it.
break;
}
else // if this string did fit, and it might have been too small, try making it bigger
{
// we know this is still be < minCharsFromRightThatDoNotFit
newLength = maxCharsFromRightThatFit + 1;
}
}
else // currentText does not fit. Repeat loop
{
// we know that this many characters did not fit on the line
minCharsFromRightThatDoNotFit = Min( minCharsFromRightThatDoNotFit, currentLength );
// Try using the number that fit on the left as the number we will fit on the right.
newLength = charsThatFitOnLeft;
}
currentText.Set(aText.Right(newLength));
}
return maxCharsFromRightThatFit;
}
VOID ACLStr::_Grow(IN const size_t appendSize)
{
// If the string doesn't need growing then
// just bail.
if (appendSize)
{
size_t strSize(Len());
// Check to see if we've run out of room, remember the
// string is padded by xxx bytes. Where xxx is the next
// eight byte boundry
if (_realLength <= (_length+appendSize))
{
size_t newRealLength(0);
LPTSTR newString(NULL);
size_t newLength(__Alloc(strSize+appendSize, &newString, &newRealLength));
if (newString && newLength && newRealLength)
{
MEMSET(newString, 0, newRealLength);
STRCPY_S(newString, newRealLength, _string);
ARRAY_DELETE(_string);
_string = newString;
_length = newLength;
_realLength = newRealLength;
}
}
else
{
// If the append size is less than the size of
// the REAL buffer size then don't worry about
// growing the buffer. Just tell this string
// that its' size is now larger.
_length = (strSize+appendSize);
}
}
} // ::grow
