Esempi in C++ (Cpp) per OGR_F_GetFieldAsDateTime

Esempio n. 1

File: qgsogrfeatureiterator.cpp Progetto: stevenmizuno/QGIS

void QgsOgrFeatureIterator::getFeatureAttribute( OGRFeatureH ogrFet, QgsFeature & f, int attindex )
{
  OGRFieldDefnH fldDef = OGR_F_GetFieldDefnRef( ogrFet, attindex );

  if ( ! fldDef )
  {
    QgsDebugMsg( "ogrFet->GetFieldDefnRef(attindex) returns NULL" );
    return;
  }

  QVariant value;

  if ( OGR_F_IsFieldSet( ogrFet, attindex ) )
  {
    switch ( mSource->mFields.at( attindex ).type() )
    {
      case QVariant::String: value = QVariant( mSource->mEncoding->toUnicode( OGR_F_GetFieldAsString( ogrFet, attindex ) ) ); break;
      case QVariant::Int: value = QVariant( OGR_F_GetFieldAsInteger( ogrFet, attindex ) ); break;
#if defined(GDAL_VERSION_NUM) && GDAL_VERSION_NUM >= 2000000
      case QVariant::LongLong: value = QVariant( OGR_F_GetFieldAsInteger64( ogrFet, attindex ) ); break;
#endif
      case QVariant::Double: value = QVariant( OGR_F_GetFieldAsDouble( ogrFet, attindex ) ); break;
      case QVariant::Date:
      case QVariant::DateTime:
      {
        int year, month, day, hour, minute, second, tzf;

        OGR_F_GetFieldAsDateTime( ogrFet, attindex, &year, &month, &day, &hour, &minute, &second, &tzf );
        if ( mSource->mFields.at( attindex ).type() == QVariant::Date )
          value = QDate( year, month, day );
        else
          value = QDateTime( QDate( year, month, day ), QTime( hour, minute, second ) );
      }
      break;
      default:
        assert( 0 && "unsupported field type" );
    }
  }
  else
  {
    value = QVariant( QString::null );
  }

  f.setAttribute( attindex, value );
}

Esempio n. 2

File: qgsogrutils.cpp Progetto: mterente/QGIS

QVariant QgsOgrUtils::getOgrFeatureAttribute( OGRFeatureH ogrFet, const QgsFields& fields, int attIndex, QTextCodec* encoding , bool* ok )
{
  if ( !ogrFet || attIndex < 0 || attIndex >= fields.count() )
  {
    if ( ok )
      *ok = false;
    return QVariant();
  }

  OGRFieldDefnH fldDef = OGR_F_GetFieldDefnRef( ogrFet, attIndex );

  if ( ! fldDef )
  {
    if ( ok )
      *ok = false;

    QgsDebugMsg( "ogrFet->GetFieldDefnRef(attindex) returns NULL" );
    return QVariant();
  }

  QVariant value;

  if ( ok )
    *ok = true;

  if ( OGR_F_IsFieldSet( ogrFet, attIndex ) )
  {
    switch ( fields.at( attIndex ).type() )
    {
      case QVariant::String:
      {
        if ( encoding )
          value = QVariant( encoding->toUnicode( OGR_F_GetFieldAsString( ogrFet, attIndex ) ) );
        else
          value = QVariant( QString::fromUtf8( OGR_F_GetFieldAsString( ogrFet, attIndex ) ) );
        break;
      }
      case QVariant::Int:
        value = QVariant( OGR_F_GetFieldAsInteger( ogrFet, attIndex ) );
        break;
#if defined(GDAL_VERSION_NUM) && GDAL_VERSION_NUM >= 2000000
      case QVariant::LongLong:
        value = QVariant( OGR_F_GetFieldAsInteger64( ogrFet, attIndex ) );
        break;
#endif
      case QVariant::Double:
        value = QVariant( OGR_F_GetFieldAsDouble( ogrFet, attIndex ) );
        break;
      case QVariant::Date:
      case QVariant::DateTime:
      case QVariant::Time:
      {
        int year, month, day, hour, minute, second, tzf;

        OGR_F_GetFieldAsDateTime( ogrFet, attIndex, &year, &month, &day, &hour, &minute, &second, &tzf );
        if ( fields.at( attIndex ).type() == QVariant::Date )
          value = QDate( year, month, day );
        else if ( fields.at( attIndex ).type() == QVariant::Time )
          value = QTime( hour, minute, second );
        else
          value = QDateTime( QDate( year, month, day ), QTime( hour, minute, second ) );
      }
      break;
      default:
        Q_ASSERT_X( false, "QgsOgrUtils::getOgrFeatureAttribute", "unsupported field type" );
        if ( ok )
          *ok = false;
    }
  }
  else
  {
    value = QVariant( QString::null );
  }

  return value;
}