void PgnImporter::run()
{
QFile file(m_fileName);
QFileInfo fileInfo(m_fileName);
const QTime startTime = QTime::currentTime();
static const int updateInterval = 1024;
int numReadGames = 0;
if (!fileInfo.exists())
{
emit error(PgnImporter::FileDoesNotExist);
return;
}
if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
{
emit error(PgnImporter::IoError);
return;
}
PgnStream pgnStream(&file);
QList<const PgnGameEntry*> games;
forever
{
PgnGameEntry* game = new PgnGameEntry;
if (m_abort || !game->read(pgnStream))
{
delete game;
break;
}
games << game;
numReadGames++;
if (numReadGames % updateInterval == 0)
emit databaseReadStatus(startTime, numReadGames);
}
PgnDatabase* db = new PgnDatabase(m_fileName);
db->setEntries(games);
db->setLastModified(fileInfo.lastModified());
emit databaseRead(db);
}
bool GameDatabaseManager::readState(const QString& fileName)
{
QFile stateFile(fileName);
if (!stateFile.open(QIODevice::ReadOnly))
return false;
QDataStream in(&stateFile);
in.setVersion(QDataStream::Qt_4_6); // don't change
// Read and verify the magic value
quint32 magic;
in >> magic;
if (magic != GAME_DATABASE_STATE_MAGIC)
{
qWarning("GameDatabaseManager: bad magic value in state file");
return false;
}
// Read and verify the version number
quint32 version;
in >> version;
if (version < GAME_DATABASE_STATE_VERSION ||
version > GAME_DATABASE_STATE_VERSION)
{
// TODO: Add backward compatibility
qWarning("GameDatabaseManager: state file version mismatch");
return false;
}
// Read the number of databases
qint32 dbCount;
in >> dbCount;
// Read the contents of the databases
QString dbFileName;
QDateTime dbLastModified;
QString dbDisplayName;
QList<PgnDatabase*> readDatabases;
for (int i = 0; i < dbCount; i++)
{
in >> dbFileName;
in >> dbLastModified;
in >> dbDisplayName;
// Check if the database exists
QFileInfo fileInfo(dbFileName);
if (!fileInfo.exists())
{
m_modified = true;
continue;
}
// Check if the database has been modified
if (fileInfo.lastModified() > dbLastModified)
{
m_modified = true;
importPgnFile(dbFileName);
continue;
}
qint32 dbEntryCount;
in >> dbEntryCount;
// Read the entries
QList<const PgnGameEntry*> entries;
for (int j = 0; j < dbEntryCount; j++)
{
PgnGameEntry* entry = new PgnGameEntry;
entry->read(in);
entries << entry;
}
PgnDatabase* db = new PgnDatabase(dbFileName);
db->setEntries(entries);
db->setLastModified(dbLastModified);
db->setDisplayName(dbDisplayName);
readDatabases << db;
}
m_modified = false;
m_databases = readDatabases;
emit databasesReset();
return true;
}
