C++ QValueList::prepend方法代码示例

SipUriList &SipUriList::reverseList( void )
{
	QValueList<SipUri>::Iterator it;
	QValueList<SipUri> templist;

	for( it = urilist.begin(); it != urilist.end(); ++it ) {
		templist.prepend( (*it) );
	}

	urilist = templist;
	return *this;
}

/**
 * Return a list of PackageVersion objects sorted by their version numbers,
 * with the oldest version at the beginning and the latest version at the end
 * of the list.
 */
QValueList<PackageVersion*> Package::sortedVersionList()
{
	QValueList<PackageVersion*> sortedVersions;
	QValueList<PackageVersion*>::iterator sortedVersionIterator;
	PackageVersionMap::iterator versionIterator;

	for( versionIterator = m_versions.begin();
	     versionIterator != m_versions.end(); versionIterator++ )
	{
		if( versionIterator == m_versions.begin() ) {
			sortedVersions.append( *versionIterator );
			continue; // if there is only one version, it can't be compared
		}

		// reverse iteration through the sorted version list
		sortedVersionIterator = sortedVersions.end();
		while( true )
		{
			if( sortedVersionIterator == sortedVersions.begin() )
			{
				sortedVersions.prepend( *versionIterator );
				break;
			}

			sortedVersionIterator--;
			if( (*versionIterator)->isNewerThan(
			      (*sortedVersionIterator)->version() ) )
			{
				sortedVersionIterator++; // insert after the compared one, not before
				sortedVersions.insert( sortedVersionIterator, *versionIterator );
				break;
			}
		}
	}
	return sortedVersions;
} // end of sortedVersionList()

void DbPlugin::getCCHistory (BarData *barData, QDateTime &startDate)
{
  FuturesData fd;
  if (fd.setSymbol(indexKey))
  {
    qDebug("CC::getCCHistory: invalid futures symbol");
    return;
  }
    
  Config config;
  QString s;
  QString baseDir;
  config.getData(Config::DataPath, baseDir);
  baseDir.append("/Futures/");
  fd.getExchange(s);
  baseDir.append(s + "/");
  fd.getSymbol(s);
  baseDir.append(s);
  QDir dir(baseDir);
  if (! dir.exists(baseDir, TRUE))
    return;
  QStringList dirList = dir.entryList();

  QString lastChart;
  fd.getCurrentContract(startDate, lastChart);
  QString ey = lastChart.right(5);
  ey.truncate(4);

  QValueList<Bar> indexList;
  int indexCount = -1;

  int dirLoop = dirList.findIndex(lastChart);
  if (dirLoop == -1)
    dirLoop = dirList.count() - 1;
  lastChart = dirList[dirLoop];

  s = "Adjustment";
  QString s2;
  getData(s, s2);
  bool adjustFlag = s2.toInt();

  while (dirLoop > 1)
  {
    if (indexCount >= barRange)
      break;

    s = baseDir + "/" + dirList[dirLoop];

    DbPlugin tdb;
    if (tdb.open(s, chartIndex))
    {
      tdb.close();
      dirLoop--;
      lastChart = dirList[dirLoop];
      continue;
    }

    BarData *recordList = new BarData(s);
    tdb.setBarRange(barRange);
    tdb.setBarLength(barLength);
    tdb.getHistory(recordList, startDate);
    tdb.close();

    int loop;
    QDateTime dt = startDate;
    int lastBar = -1;
    bool dataFlag = FALSE;
    for (loop = recordList->count() - 1; loop > -1; loop--)
    {
      if (indexCount >= barRange)
        break;

      recordList->getDate(loop, dt);
      fd.getCurrentContract(dt, s);
      if (! s.compare(lastChart))
      {
        Bar bar;
        recordList->getBar(loop, bar);
        indexList.prepend(bar);
        indexCount++;
        startDate = dt;
        lastBar = loop;
        dataFlag = TRUE;
      }
    }

    if (dataFlag)
    {
      if (adjustFlag)
      {
        Bar bar;
        double t = 0;
        if (lastBar - 1 > -1)
          t = recordList->getClose(lastBar) - recordList->getClose(lastBar - 1);
        bar.setClose(t);
        bar.setEmptyFlag(TRUE);
        indexList.prepend(bar);
      }
    }

//.........这里部分代码省略.........