void FileSettings::constrainCacheToMaxSize(int size)
{
const QString dataPath = dataFilePath();
QDir dataDir(dataPath);
// get size of cache
QFileInfoList dataFileInfoList = dataDir.entryInfoList(QDir::Files | QDir::NoDotDot, QDir::Time);
int cacheSize = QFileInfo(dataPath).size();
for (int i = 0; i < dataFileInfoList.size(); ++i)
cacheSize += dataFileInfoList.at(i).size();
while (cacheSize > size) // remove oldest file settings from cache
{
if (dataFileInfoList.isEmpty())
break;
const QString fileName = dataFileInfoList.last().fileName();
int fileSize = dataFileInfoList.takeLast().size();
if (dataDir.remove(fileName))
cacheSize -= fileSize;
}
}
