void QgsMapToolChangeLabelProperties::canvasReleaseEvent( QMouseEvent *e )
{
  Q_UNUSED( e );
  QgsVectorLayer* vlayer = currentLayer();
  if ( mLabelRubberBand && mCanvas && vlayer )
  {
    QString labeltext = QString(); // NULL QString signifies no expression
    bool settingsOk;
    QgsPalLayerSettings& labelSettings = currentLabelSettings( &settingsOk );
    if ( settingsOk && labelSettings.isExpression )
    {
      labeltext = mCurrentLabelPos.labelText;
    }

    QgsLabelPropertyDialog d( mCurrentLabelPos.layerID, mCurrentLabelPos.featureId, mCurrentLabelPos.labelFont, labeltext, 0 );
    if ( d.exec() == QDialog::Accepted )
    {
      const QgsAttributeMap& changes = d.changedProperties();
      if ( changes.size() > 0 )
      {
        vlayer->beginEditCommand( tr( "Changed properties for label" ) + QString( " '%1'" ).arg( currentLabelText( 24 ) ) );

        QgsAttributeMap::const_iterator changeIt = changes.constBegin();
        for ( ; changeIt != changes.constEnd(); ++changeIt )
        {
          vlayer->changeAttributeValue( mCurrentLabelPos.featureId, changeIt.key(), changeIt.value() );
        }

        vlayer->endEditCommand();
        mCanvas->refresh();
      }
    }
    deleteRubberBands();
  }
}
void QgsMapToolChangeLabelProperties::canvasReleaseEvent( QMouseEvent * e )
{
  QgsVectorLayer* vlayer = currentLayer();
  if ( mLabelRubberBand && mCanvas && vlayer )
  {
    QgsLabelPropertyDialog d( mCurrentLabelPos.layerID, mCurrentLabelPos.featureId, mCanvas->mapRenderer() );
    if ( d.exec() == QDialog::Accepted )
    {
      const QgsAttributeMap& changes = d.changedProperties();
      if ( changes.size() > 0 )
      {
        vlayer->beginEditCommand( tr( "Label properties changed" ) );

        QgsAttributeMap::const_iterator changeIt = changes.constBegin();
        for ( ; changeIt != changes.constEnd(); ++changeIt )
        {
          vlayer->changeAttributeValue( mCurrentLabelPos.featureId, changeIt.key(), changeIt.value(), false );
        }

        vlayer->endEditCommand();
        mCanvas->refresh();
      }
    }
    deleteRubberBands();
  }
}
Esempio n. 3
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QString QgsActionManager::expandAction( QString action, const QgsAttributeMap &attributes,
                                        uint clickedOnValue )
{
  // This function currently replaces all %% characters in the action
  // with the value from values[clickedOnValue].second, and then
  // searches for all strings that go %attribute_name, where
  // attribute_name is found in values[x].first, and replaces any that
  // it finds by values[s].second.

  // Additional substitutions could include symbols for $CWD, $HOME,
  // etc (and their OSX and Windows equivalents)

  // This function will potentially fall apart if any of the
  // substitutions produce text that could match another
  // substitution. May be better to adopt a two pass approach - identify
  // all matches and their substitutions and then do a second pass
  // for the actual substitutions.

  QString expanded_action;
  if ( attributes.contains( clickedOnValue ) )
    expanded_action = action.replace( "%%", attributes[clickedOnValue].toString() );
  else
    expanded_action = action;

  const QgsFields &fields = mLayer->fields();

  for ( int i = 0; i < 4; i++ )
  {
    for ( QgsAttributeMap::const_iterator it = attributes.begin(); it != attributes.end(); ++it )
    {
      int attrIdx = it.key();
      if ( attrIdx < 0 || attrIdx >= fields.count() )
        continue;

      QString to_replace;
      switch ( i )
      {
        case 0:
          to_replace = "[%" + fields[attrIdx].name() + ']';
          break;
        case 1:
          to_replace = "[%" + mLayer->attributeDisplayName( attrIdx ) + ']';
          break;
        case 2:
          to_replace = '%' + fields[attrIdx].name();
          break;
        case 3:
          to_replace = '%' + mLayer->attributeDisplayName( attrIdx );
          break;
      }

      expanded_action = expanded_action.replace( to_replace, it.value().toString() );
    }
  }

  return expanded_action;
}
Esempio n. 4
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QDomElement QgsWFSServer::createFeatureElem( QgsFeature* feat, QDomDocument& doc, QgsCoordinateReferenceSystem& crs, QMap< int, QgsField > fields, QSet<QString> hiddenAttributes ) /*const*/
{
  //gml:FeatureMember
  QDomElement featureElement = doc.createElement( "gml:featureMember"/*wfs:FeatureMember*/ );

  //qgs:%TYPENAME%
  QDomElement typeNameElement = doc.createElement( "qgs:" + mTypeName.replace( QString( " " ), QString( "_" ) )/*qgs:%TYPENAME%*/ );
  typeNameElement.setAttribute( "fid", QString::number( feat->id() ) );
  featureElement.appendChild( typeNameElement );

  if ( mWithGeom )
  {
    //add geometry column (as gml)
    QgsGeometry* geom = feat->geometry();

    QDomElement geomElem = doc.createElement( "qgs:geometry" );
    QDomElement gmlElem = createGeometryElem( geom, doc );
    if ( !gmlElem.isNull() )
    {
      QgsRectangle box = geom->boundingBox();
      QDomElement bbElem = doc.createElement( "gml:boundedBy" );
      QDomElement boxElem = createBoxElem( &box, doc );

      if ( crs.isValid() )
      {
        boxElem.setAttribute( "srsName", crs.authid() );
        gmlElem.setAttribute( "srsName", crs.authid() );
      }

      bbElem.appendChild( boxElem );
      typeNameElement.appendChild( bbElem );

      geomElem.appendChild( gmlElem );
      typeNameElement.appendChild( geomElem );
    }
  }

  //read all attribute values from the feature
  QgsAttributeMap featureAttributes = feat->attributeMap();
  for ( QgsAttributeMap::const_iterator it = featureAttributes.begin(); it != featureAttributes.end(); ++it )
  {

    QString attributeName = fields[it.key()].name();
    //skip attribute if it has edit type 'hidden'
    if ( hiddenAttributes.contains( attributeName ) )
    {
      continue;
    }

    QDomElement fieldElem = doc.createElement( "qgs:" + attributeName.replace( QString( " " ), QString( "_" ) ) );
    QDomText fieldText = doc.createTextNode( it->toString() );
    fieldElem.appendChild( fieldText );
    typeNameElement.appendChild( fieldElem );
  }

  return featureElement;
}
QgsSymbolV2* QgsCategorizedSymbolRendererV2::symbolForFeature( QgsFeature& feature )
{
  const QgsAttributeMap& attrMap = feature.attributeMap();
  QgsAttributeMap::const_iterator ita = attrMap.find( mAttrNum );
  if ( ita == attrMap.end() )
  {
    QgsDebugMsg( "attribute '" + mAttrName + "' (index " + QString::number( mAttrNum ) + ") required by renderer not found" );
    return NULL;
  }

  // find the right symbol for the category
  QgsSymbolV2* symbol = symbolForValue( *ita );
  if ( symbol == NULL )
  {
    // if no symbol found use default one
    //return symbolForValue( QVariant( "" ) );
    // What is default? Empty string may be a legal value, and features not found
    // should not be rendered using empty string value category symbology.
    // We also need to get NULL in that case so that willRenderFeature()
    // may be used to count features.
    return 0;
  }

  if ( mRotationFieldIdx == -1 && mSizeScaleFieldIdx == -1 )
    return symbol; // no data-defined rotation/scaling - just return the symbol

  // find out rotation, size scale
  double rotation = 0;
  double sizeScale = 1;
  if ( mRotationFieldIdx != -1 )
    rotation = attrMap[mRotationFieldIdx].toDouble();
  if ( mSizeScaleFieldIdx != -1 )
    sizeScale = attrMap[mSizeScaleFieldIdx].toDouble();

  // take a temporary symbol (or create it if doesn't exist)
  QgsSymbolV2* tempSymbol = mTempSymbols[ita->toString()];

  // modify the temporary symbol and return it
  if ( tempSymbol->type() == QgsSymbolV2::Marker )
  {
    QgsMarkerSymbolV2* markerSymbol = static_cast<QgsMarkerSymbolV2*>( tempSymbol );
    if ( mRotationFieldIdx != -1 )
      markerSymbol->setAngle( rotation );
    if ( mSizeScaleFieldIdx != -1 )
      markerSymbol->setSize( sizeScale * static_cast<QgsMarkerSymbolV2*>( symbol )->size() );
    markerSymbol->setScaleMethod( mScaleMethod );
  }
  else if ( tempSymbol->type() == QgsSymbolV2::Line )
  {
    QgsLineSymbolV2* lineSymbol = static_cast<QgsLineSymbolV2*>( tempSymbol );
    if ( mSizeScaleFieldIdx != -1 )
      lineSymbol->setWidth( sizeScale * static_cast<QgsLineSymbolV2*>( symbol )->width() );
  }

  return tempSymbol;
}
void QgsVectorLayerEditBuffer::updateAttributeMapIndex( QgsAttributeMap& map, int index, int offset ) const
{
  QgsAttributeMap updatedMap;
  for ( QgsAttributeMap::const_iterator it = map.begin(); it != map.end(); ++it )
  {
    int attrIndex = it.key();
    updatedMap.insert( attrIndex < index ? attrIndex : attrIndex + offset, it.value() );
  }
  map = updatedMap;
}
Esempio n. 7
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void QgsGPXProvider::changeAttributeValues( QgsGPSObject& obj, const QgsAttributeMap& attrs )
{

  QgsWaypoint* wpt = dynamic_cast<QgsWaypoint*>( &obj );
  QgsGPSExtended* ext = dynamic_cast<QgsGPSExtended*>( &obj );

  QgsAttributeMap::const_iterator aIter = attrs.begin();
  for ( ; aIter != attrs.end(); ++aIter )
  {
    int i = aIter.key();
    QVariant v = aIter.value();

    // common attributes
    switch ( indexToAttr[i] )
    {
      case NameAttr:    obj.name    = v.toString(); break;
      case CmtAttr:     obj.cmt     = v.toString(); break;
      case DscAttr:     obj.desc    = v.toString(); break;
      case SrcAttr:     obj.src     = v.toString(); break;
      case URLAttr:     obj.url     = v.toString(); break;
      case URLNameAttr: obj.urlname = v.toString(); break;
    }

    // waypoint-specific attributes
    if ( wpt != NULL )
    {
      if ( indexToAttr[i] == SymAttr )
        wpt->sym = v.toString();
      else if ( indexToAttr[i] == EleAttr )
      {
        bool eleIsOK;
        double ele = v.toDouble( &eleIsOK );
        if ( eleIsOK )
          wpt->ele = ele;
      }
    }

    // route- and track-specific attributes
    if ( ext != NULL )
    {
      if ( indexToAttr[i] == NumAttr )
      {
        bool numIsOK;
        int num = v.toInt( &numIsOK );
        if ( numIsOK )
          ext->number = num;
      }
    }

  }

}
QString QgsPointDisplacementRenderer::getLabel( const QgsFeature& f )
{
  QString attribute;
  QgsAttributeMap attMap = f.attributeMap();
  if ( attMap.size() > 0 )
  {
    QgsAttributeMap::const_iterator valIt = attMap.find( mLabelIndex );
    if ( valIt != attMap.constEnd() )
    {
      attribute = valIt->toString();
    }
  }
  return attribute;
}
Esempio n. 9
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QSizeF QgsLinearlyInterpolatedDiagramRenderer::diagramSize( const QgsAttributeMap& attributes, const QgsRenderContext& c )
{
    Q_UNUSED( c );
    QgsAttributeMap::const_iterator attIt = attributes.find( mClassificationAttribute );
    if ( attIt == attributes.constEnd() )
    {
        return QSizeF(); //zero size if attribute is missing
    }
    double value = attIt.value().toDouble();

    //interpolate size
    double ratio = ( value - mLowerValue ) / ( mUpperValue - mLowerValue );
    return QSizeF( mUpperSize.width() * ratio + mLowerSize.width() * ( 1 - ratio ),
                   mUpperSize.height() * ratio + mLowerSize.height() * ( 1 - ratio ) );
}
QgsSymbolV2* QgsCategorizedSymbolRendererV2::symbolForFeature( QgsFeature& feature )
{
  const QgsAttributeMap& attrMap = feature.attributeMap();
  QgsAttributeMap::const_iterator ita = attrMap.find( mAttrNum );
  if ( ita == attrMap.end() )
  {
    QgsDebugMsg( "attribute '" + mAttrName + "' (index " + QString::number( mAttrNum ) + ") required by renderer not found" );
    return NULL;
  }

  // find the right symbol for the category
  QgsSymbolV2* symbol = symbolForValue( *ita );
  if ( symbol == NULL )
    return NULL;

  if ( mRotationFieldIdx == -1 && mSizeScaleFieldIdx == -1 )
    return symbol; // no data-defined rotation/scaling - just return the symbol

  // find out rotation, size scale
  double rotation = 0;
  double sizeScale = 1;
  if ( mRotationFieldIdx != -1 )
    rotation = attrMap[mRotationFieldIdx].toDouble();
  if ( mSizeScaleFieldIdx != -1 )
    sizeScale = attrMap[mSizeScaleFieldIdx].toDouble();

  // take a temporary symbol (or create it if doesn't exist)
  QgsSymbolV2* tempSymbol = mTempSymbols[ita->toString()];

  // modify the temporary symbol and return it
  if ( tempSymbol->type() == QgsSymbolV2::Marker )
  {
    QgsMarkerSymbolV2* markerSymbol = static_cast<QgsMarkerSymbolV2*>( tempSymbol );
    if ( mRotationFieldIdx != -1 )
      markerSymbol->setAngle( rotation );
    if ( mSizeScaleFieldIdx != -1 )
      markerSymbol->setSize( sizeScale * static_cast<QgsMarkerSymbolV2*>( symbol )->size() );
  }
  else if ( tempSymbol->type() == QgsSymbolV2::Line )
  {
    QgsLineSymbolV2* lineSymbol = static_cast<QgsLineSymbolV2*>( tempSymbol );
    if ( mSizeScaleFieldIdx != -1 )
      lineSymbol->setWidth( sizeScale * static_cast<QgsLineSymbolV2*>( symbol )->width() );
  }

  return tempSymbol;
}
Esempio n. 11
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QSizeF QgsPieDiagram::diagramSize( const QgsAttributeMap& attributes, const QgsRenderContext& c, const QgsDiagramSettings& s, const QgsDiagramInterpolationSettings& is )
{
  Q_UNUSED( c );
  QgsAttributeMap::const_iterator attIt = attributes.find( is.classificationAttribute );
  if ( attIt == attributes.constEnd() )
  {
    return QSizeF(); //zero size if attribute is missing
  }

  double scaledValue = attIt.value().toDouble();
  double scaledLowerValue = is.lowerValue;
  double scaledUpperValue = is.upperValue;
  double scaledLowerSizeWidth = is.lowerSize.width();
  double scaledLowerSizeHeight = is.lowerSize.height();
  double scaledUpperSizeWidth = is.upperSize.width();
  double scaledUpperSizeHeight = is.upperSize.height();

  // interpolate the squared value if scale by area
  if ( s.scaleByArea )
  {
    scaledValue = sqrt( scaledValue );
    scaledLowerValue = sqrt( scaledLowerValue );
    scaledUpperValue = sqrt( scaledUpperValue );
    scaledLowerSizeWidth = sqrt( scaledLowerSizeWidth );
    scaledLowerSizeHeight = sqrt( scaledLowerSizeHeight );
    scaledUpperSizeWidth = sqrt( scaledUpperSizeWidth );
    scaledUpperSizeHeight = sqrt( scaledUpperSizeHeight );
  }

  //interpolate size
  double scaledRatio = ( scaledValue - scaledLowerValue ) / ( scaledUpperValue - scaledLowerValue );

  QSizeF size = QSizeF( is.upperSize.width() * scaledRatio + is.lowerSize.width() * ( 1 - scaledRatio ),
                        is.upperSize.height() * scaledRatio + is.lowerSize.height() * ( 1 - scaledRatio ) );

  // Scale, if extension is smaller than the specified minimum
  if ( size.width() <= s.minimumSize && size.height() <= s.minimumSize )
  {
    size.scale( s.minimumSize, s.minimumSize, Qt::KeepAspectRatio );
  }

  return size;
}
Esempio n. 12
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QString QgsLabel::fieldValue( int attr, QgsFeature &feature )
{
  if ( mLabelFieldIdx[attr] == -1 )
  {
    return QString();
  }

  const QgsAttributeMap& attrs = feature.attributeMap();
  QgsAttributeMap::const_iterator it = attrs.find( mLabelFieldIdx[attr] );

  if ( it != attrs.end() )
  {
    return it->toString();
  }
  else
  {
    return QString();
  }
}
Esempio n. 13
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int QgsDiagramRenderer::classificationValue( const QgsFeature& f, QVariant& value ) const
{
  //find out attribute value of the feature
  QgsAttributeMap featureAttributes = f.attributeMap();

  QgsAttributeMap::const_iterator iter;

  if ( value.type() == QVariant::String ) //string type
  {
    //we can only handle one classification field for strings
    if ( mClassificationAttributes.size() > 1 )
    {
      return 1;
    }

    iter = featureAttributes.find( mClassificationAttributes.first() );
    if ( iter == featureAttributes.constEnd() )
    {
      return 2;
    }
    value = iter.value();
  }
  else //numeric type
  {
    double currentValue;
    double totalValue = 0;

    QList<int>::const_iterator list_it = mClassificationAttributes.constBegin();
    for ( ; list_it != mClassificationAttributes.constEnd(); ++list_it )
    {
      QgsAttributeMap::const_iterator iter = featureAttributes.find( *list_it );
      if ( iter == featureAttributes.constEnd() )
      {
        continue;
      }
      currentValue = iter.value().toDouble();
      totalValue += currentValue;
    }
    value = QVariant( totalValue );
  }
  return 0;
}
void QgsMapToolChangeLabelProperties::applyChanges( const QgsAttributeMap& changes )
{
  QgsVectorLayer* vlayer = mCurrentLabel.layer;
  if ( !vlayer )
    return;

  if ( !changes.isEmpty() )
  {
    vlayer->beginEditCommand( tr( "Changed properties for label" ) + QStringLiteral( " '%1'" ).arg( currentLabelText( 24 ) ) );

    QgsAttributeMap::const_iterator changeIt = changes.constBegin();
    for ( ; changeIt != changes.constEnd(); ++changeIt )
    {
      vlayer->changeAttributeValue( mCurrentLabel.pos.featureId, changeIt.key(), changeIt.value() );
    }

    vlayer->endEditCommand();
    vlayer->triggerRepaint();
  }
}
void QgsVectorLayerFeatureIterator::updateChangedAttributes( QgsFeature &f )
{
  QgsAttributes& attrs = f.attributes();

  // remove all attributes that will disappear - from higher indices to lower
  for ( int idx = mDeletedAttributeIds.count() - 1; idx >= 0; --idx )
  {
    attrs.remove( mDeletedAttributeIds[idx] );
  }

  // adjust size to accommodate added attributes
  attrs.resize( attrs.count() + mAddedAttributes.count() );

  // update changed attributes
  if ( mChangedAttributeValues.contains( f.id() ) )
  {
    const QgsAttributeMap &map = mChangedAttributeValues[f.id()];
    for ( QgsAttributeMap::const_iterator it = map.begin(); it != map.end(); it++ )
      attrs[it.key()] = it.value();
  }
}
void QgsOfflineEditing::applyFeaturesAdded( QgsVectorLayer* offlineLayer, QgsVectorLayer* remoteLayer, sqlite3* db, int layerId )
{
  QString sql = QString( "SELECT \"fid\" FROM 'log_added_features' WHERE \"layer_id\" = %1" ).arg( layerId );
  QList<int> newFeatureIds = sqlQueryInts( db, sql );

  // get new features from offline layer
  QgsFeatureList features;
  for ( int i = 0; i < newFeatureIds.size(); i++ )
  {
    QgsFeature feature;
    if ( offlineLayer->featureAtId( newFeatureIds.at( i ), feature, true, true ) )
    {
      features << feature;
    }
  }

  // copy features to remote layer
  mProgressDialog->setupProgressBar( tr( "%v / %m features added" ), features.size() );

  int i = 1;
  for ( QgsFeatureList::iterator it = features.begin(); it != features.end(); ++it )
  {
    QgsFeature f = *it;

    // NOTE: Spatialite provider ignores position of geometry column
    // restore gap in QgsAttributeMap if geometry column is not last (WORKAROUND)
    QMap<int, int> attrLookup = attributeLookup( offlineLayer, remoteLayer );
    QgsAttributeMap newAttrMap;
    QgsAttributeMap attrMap = f.attributeMap();
    for ( QgsAttributeMap::const_iterator it = attrMap.begin(); it != attrMap.end(); ++it )
    {
      newAttrMap.insert( attrLookup[ it.key()], it.value() );
    }
    f.setAttributeMap( newAttrMap );

    remoteLayer->addFeature( f, false );

    mProgressDialog->setProgressValue( i++ );
  }
}
Esempio n. 17
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QString QgsWFSServer::createFeatureGeoJSON( QgsFeature* feat, QgsCoordinateReferenceSystem &, QMap< int, QgsField > fields, QSet<QString> hiddenAttributes ) /*const*/
{
  QString fStr = "{\"type\": \"Feature\",\n";

  fStr += "   \"id\": ";
  fStr +=  QString::number( feat->id() );
  fStr += ",\n";

  QgsGeometry* geom = feat->geometry();
  if ( geom && mWithGeom )
  {
    QgsRectangle box = geom->boundingBox();

    fStr += " \"bbox\": [ " + QString::number( box.xMinimum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( box.yMinimum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( box.xMaximum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( box.yMaximum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + "],\n";

    fStr += "  \"geometry\": ";
    fStr += geom->exportToGeoJSON();
    fStr += ",\n";
  }

  //read all attribute values from the feature
  fStr += "   \"properties\": {\n";
  QgsAttributeMap featureAttributes = feat->attributeMap();
  int attributeCounter = 0;
  for ( QgsAttributeMap::const_iterator it = featureAttributes.begin(); it != featureAttributes.end(); ++it )
  {
    QString attributeName = fields[it.key()].name();
    //skip attribute if it has edit type 'hidden'
    if ( hiddenAttributes.contains( attributeName ) )
    {
      continue;
    }

    if ( attributeCounter == 0 )
      fStr += "    \"";
    else
      fStr += "   ,\"";
    fStr += attributeName;
    fStr += "\": ";
    if ( it->type() == 6 || it->type() == 2 )
    {
      fStr +=  it->toString();
    }
    else
    {
      fStr += "\"";
      fStr +=  it->toString().replace( QString( "\"" ), QString( "\\\"" ) );
      fStr += "\"";
    }
    fStr += "\n";
    ++attributeCounter;
  }

  fStr += "   }\n";

  fStr += "  }";

  return fStr;
}
Esempio n. 18
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void QgsOfflineEditing::committedAttributeValuesChanges( const QString& qgisLayerId, const QgsChangedAttributesMap& changedAttrsMap )
{
  sqlite3* db = openLoggingDb();
  if ( db == NULL )
  {
    return;
  }

  // insert log
  int layerId = getOrCreateLayerId( db, qgisLayerId );
  int commitNo = getCommitNo( db );

  for ( QgsChangedAttributesMap::const_iterator cit = changedAttrsMap.begin(); cit != changedAttrsMap.end(); ++cit )
  {
    QgsFeatureId fid = cit.key();
    if ( isAddedFeature( db, layerId, fid ) )
    {
      // skip added features
      continue;
    }
    QgsAttributeMap attrMap = cit.value();
    for ( QgsAttributeMap::const_iterator it = attrMap.begin(); it != attrMap.end(); ++it )
    {
      QString sql = QString( "INSERT INTO 'log_feature_updates' VALUES ( %1, %2, %3, %4, '%5' )" )
                    .arg( layerId )
                    .arg( commitNo )
                    .arg( fid )
                    .arg( it.key() ) // attr
                    .arg( it.value().toString() ); // value
      sqlExec( db, sql );
    }
  }

  increaseCommitNo( db );
  sqlite3_close( db );
}
Esempio n. 19
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bool QgsFeatureAction::editFeature()
{
  bool res = false;

  if ( !mLayer )
    return res;

  QgsAttributeDialog *dialog = newDialog( false );

  if ( !mLayer->isEditable() )
  {
    res = dialog->exec();
  }
  else
  {
    QgsAttributeMap src = mFeature.attributeMap();

    if ( dialog->exec() )
    {
      mLayer->beginEditCommand( text() );

      const QgsAttributeMap &dst = mFeature.attributeMap();
      for ( QgsAttributeMap::const_iterator it = dst.begin(); it != dst.end(); it++ )
      {
        if ( !src.contains( it.key() ) || it.value() != src[it.key()] )
        {
          mLayer->changeAttributeValue( mFeature.id(), it.key(), it.value() );
        }
      }

      mLayer->endEditCommand();
      res = true;
    }
    else
    {
      res = false;
    }
  }

  delete dialog;
  return res;
}
Esempio n. 20
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bool QgsWFSProvider::changeAttributeValues( const QgsChangedAttributesMap &attr_map )
{
  //find out typename from uri and strip namespace prefix
  QString tname = mShared->mURI.typeName();
  if ( tname.isNull() )
  {
    return false;
  }

  //create <Transaction> xml
  QDomDocument transactionDoc;
  QDomElement transactionElem = createTransactionElement( transactionDoc );
  transactionDoc.appendChild( transactionElem );

  QgsChangedAttributesMap::const_iterator attIt = attr_map.constBegin();
  for ( ; attIt != attr_map.constEnd(); ++attIt )
  {
    QString gmlid = mShared->findGmlId( attIt.key() );
    if ( gmlid.isEmpty() )
    {
      QgsDebugMsg( QString( "Cannot identify feature of id %1" ).arg( attIt.key() ) );
      continue;
    }

    QDomElement updateElem = transactionDoc.createElementNS( QgsWFSConstants::WFS_NAMESPACE, "Update" );
    updateElem.setAttribute( "typeName", tname );

    QgsAttributeMap::const_iterator attMapIt = attIt.value().constBegin();
    for ( ; attMapIt != attIt.value().constEnd(); ++attMapIt )
    {
      QString fieldName = mShared->mFields.at( attMapIt.key() ).name();
      QDomElement propertyElem = transactionDoc.createElementNS( QgsWFSConstants::WFS_NAMESPACE, "Property" );

      QDomElement nameElem = transactionDoc.createElementNS( QgsWFSConstants::WFS_NAMESPACE, "Name" );
      QDomText nameText = transactionDoc.createTextNode( fieldName );
      nameElem.appendChild( nameText );
      propertyElem.appendChild( nameElem );

      QDomElement valueElem = transactionDoc.createElementNS( QgsWFSConstants::WFS_NAMESPACE, "Value" );
      QDomText valueText = transactionDoc.createTextNode( attMapIt.value().toString() );
      valueElem.appendChild( valueText );
      propertyElem.appendChild( valueElem );

      updateElem.appendChild( propertyElem );
    }

    //Filter
    QDomElement filterElem = transactionDoc.createElementNS( QgsWFSConstants::OGC_NAMESPACE, "Filter" );
    QDomElement featureIdElem = transactionDoc.createElementNS( QgsWFSConstants::OGC_NAMESPACE, "FeatureId" );
    featureIdElem.setAttribute( "fid", gmlid );
    filterElem.appendChild( featureIdElem );
    updateElem.appendChild( filterElem );

    transactionElem.appendChild( updateElem );
  }

  QDomDocument serverResponse;
  bool success = sendTransactionDocument( transactionDoc, serverResponse );
  if ( !success )
  {
    return false;
  }

  if ( transactionSuccess( serverResponse ) )
  {
    mShared->changeAttributeValues( attr_map );
    return true;
  }
  else
  {
    handleException( serverResponse );
    return false;
  }
}
void QgsOfflineEditing::copyVectorLayer( QgsVectorLayer* layer, sqlite3* db, const QString& offlineDbPath )
{
  if ( layer == NULL )
  {
    return;
  }

  QString tableName = layer->name();

  // create table
  QString sql = QString( "CREATE TABLE '%1' (" ).arg( tableName );
  QString delim = "";
  const QgsFieldMap& fields = layer->dataProvider()->fields();
  for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end() ; ++it )
  {
    QString dataType = "";
    QVariant::Type type = it.value().type();
    if ( type == QVariant::Int )
    {
      dataType = "INTEGER";
    }
    else if ( type == QVariant::Double )
    {
      dataType = "REAL";
    }
    else if ( type == QVariant::String )
    {
      dataType = "TEXT";
    }
    else
    {
      showWarning( tr( "Unknown data type %1" ).arg( type ) );
    }

    sql += delim + QString( "'%1' %2" ).arg( it.value().name() ).arg( dataType );
    delim = ",";
  }
  sql += ")";

  // add geometry column
  QString geomType = "";
  switch ( layer->wkbType() )
  {
    case QGis::WKBPoint:
      geomType = "POINT";
      break;
    case QGis::WKBMultiPoint:
      geomType = "MULTIPOINT";
      break;
    case QGis::WKBLineString:
      geomType = "LINESTRING";
      break;
    case QGis::WKBMultiLineString:
      geomType = "MULTILINESTRING";
      break;
    case QGis::WKBPolygon:
      geomType = "POLYGON";
      break;
    case QGis::WKBMultiPolygon:
      geomType = "MULTIPOLYGON";
      break;
    default:
      showWarning( tr( "QGIS wkbType %1 not supported" ).arg( layer->wkbType() ) );
      break;
  };
  QString sqlAddGeom = QString( "SELECT AddGeometryColumn('%1', 'Geometry', %2, '%3', 2)" )
                       .arg( tableName )
                       .arg( layer->crs().authid().startsWith( "EPSG:", Qt::CaseInsensitive ) ? layer->crs().authid().mid( 5 ).toLong() : 0 )
                       .arg( geomType );

  // create spatial index
  QString sqlCreateIndex = QString( "SELECT CreateSpatialIndex('%1', 'Geometry')" ).arg( tableName );

  int rc = sqlExec( db, sql );
  if ( rc == SQLITE_OK )
  {
    rc = sqlExec( db, sqlAddGeom );
    if ( rc == SQLITE_OK )
    {
      rc = sqlExec( db, sqlCreateIndex );
    }
  }

  if ( rc == SQLITE_OK )
  {
    // add new layer
    QgsVectorLayer* newLayer = new QgsVectorLayer( QString( "dbname='%1' table='%2'(Geometry) sql=" )
        .arg( offlineDbPath ).arg( tableName ), tableName + " (offline)", "spatialite" );
    if ( newLayer->isValid() )
    {
      // mark as offline layer
      newLayer->setCustomProperty( CUSTOM_PROPERTY_IS_OFFLINE_EDITABLE, true );

      // store original layer source
      newLayer->setCustomProperty( CUSTOM_PROPERTY_REMOTE_SOURCE, layer->source() );
      newLayer->setCustomProperty( CUSTOM_PROPERTY_REMOTE_PROVIDER, layer->providerType() );

      // copy style
      bool hasLabels = layer->hasLabelsEnabled();
      if ( !hasLabels )
      {
        // NOTE: copy symbology before adding the layer so it is displayed correctly
        copySymbology( layer, newLayer );
      }

      // register this layer with the central layers registry
      QgsMapLayerRegistry::instance()->addMapLayer( newLayer );

      if ( hasLabels )
      {
        // NOTE: copy symbology of layers with labels enabled after adding to project, as it will crash otherwise (WORKAROUND)
        copySymbology( layer, newLayer );
      }

      // TODO: layer order

      // copy features
      newLayer->startEditing();
      QgsFeature f;

      // NOTE: force feature recount for PostGIS layer, else only visible features are counted, before iterating over all features (WORKAROUND)
      layer->setSubsetString( "" );

      layer->select( layer->pendingAllAttributesList(), QgsRectangle(), true, false );

      mProgressDialog->setupProgressBar( tr( "%v / %m features copied" ), layer->featureCount() );
      int featureCount = 1;

      QList<int> remoteFeatureIds;
      while ( layer->nextFeature( f ) )
      {
        remoteFeatureIds << f.id();

        // NOTE: Spatialite provider ignores position of geometry column
        // fill gap in QgsAttributeMap if geometry column is not last (WORKAROUND)
        int column = 0;
        QgsAttributeMap newAttrMap;
        QgsAttributeMap attrMap = f.attributeMap();
        for ( QgsAttributeMap::const_iterator it = attrMap.begin(); it != attrMap.end(); ++it )
        {
          newAttrMap.insert( column++, it.value() );
        }
        f.setAttributeMap( newAttrMap );

        newLayer->addFeature( f, false );

        mProgressDialog->setProgressValue( featureCount++ );
      }
      if ( newLayer->commitChanges() )
      {
        mProgressDialog->setupProgressBar( tr( "%v / %m features processed" ), layer->featureCount() );
        featureCount = 1;

        // update feature id lookup
        int layerId = getOrCreateLayerId( db, newLayer->id() );
        QList<int> offlineFeatureIds;
        newLayer->select( QgsAttributeList(), QgsRectangle(), false, false );
        while ( newLayer->nextFeature( f ) )
        {
          offlineFeatureIds << f.id();
        }

        // NOTE: insert fids in this loop, as the db is locked during newLayer->nextFeature()
        sqlExec( db, "BEGIN" );
        for ( int i = 0; i < remoteFeatureIds.size(); i++ )
        {
          addFidLookup( db, layerId, offlineFeatureIds.at( i ), remoteFeatureIds.at( i ) );

          mProgressDialog->setProgressValue( featureCount++ );
        }
        sqlExec( db, "COMMIT" );
      }
      else
      {
        showWarning( newLayer->commitErrors().join( "\n" ) );
      }

      // remove remote layer
      QgsMapLayerRegistry::instance()->removeMapLayer( layer->id() );
    }
  }
}
void RgLineVectorLayerDirector::makeGraph( RgGraphBuilder *builder, const QVector< QgsPoint >& additionalPoints,
    QVector< QgsPoint >& tiedPoint ) const
{
  QgsVectorLayer *vl = myLayer();

  if ( vl == NULL )
    return;

  int featureCount = ( int ) vl->featureCount() * 2;
  int step = 0;

  QgsCoordinateTransform ct;
  QgsDistanceArea da;
  ct.setSourceCrs( vl->crs() );

  if ( builder->coordinateTransformEnabled() )
  {
    ct.setDestCRS( builder->destinationCrs() );
    da.setProjectionsEnabled( true );
    //
    //da.setSourceCrs( builder->destinationCrs().srsid() );
    //
  }
  else
  {
    ct.setDestCRS( vl->crs() );
    da.setProjectionsEnabled( false );
  }

  tiedPoint = QVector< QgsPoint >( additionalPoints.size(), QgsPoint( 0.0, 0.0 ) );
  TiePointInfo tmpInfo;
  tmpInfo.mLength = infinity();

  QVector< TiePointInfo > pointLengthMap( additionalPoints.size(), tmpInfo );
  QVector< TiePointInfo >::iterator pointLengthIt;

  // begin: tie points to the graph
  QgsAttributeList la;
  vl->select( la );
  QgsFeature feature;
  while ( vl->nextFeature( feature ) )
  {
    QgsMultiPolyline mpl;
    if ( feature.geometry()->wkbType() == QGis::WKBLineString )
    {
      mpl.push_back( feature.geometry()->asPolyline() );
    }else if ( feature.geometry()->wkbType() == QGis::WKBMultiLineString )
    {
      mpl = feature.geometry()->asMultiPolyline();
    }

    QgsMultiPolyline::iterator mplIt;
    for ( mplIt = mpl.begin(); mplIt != mpl.end(); ++mplIt )
    {
      QgsPoint pt1, pt2;
      bool isFirstPoint = true;
      QgsPolyline::iterator pointIt;
      for ( pointIt = mplIt->begin(); pointIt != mplIt->end(); ++pointIt )
      {
        pt2 = builder->addVertex( ct.transform( *pointIt ) );
        if ( !isFirstPoint )
        {
          int i = 0;
          for ( i = 0; i != additionalPoints.size(); ++i )
          {
            TiePointInfo info;
            if ( pt1 == pt2 )
            {
              info.mLength = additionalPoints[ i ].sqrDist( pt1 );
              info.mTiedPoint = pt1;
            }
            else
            {
              info.mLength = additionalPoints[ i ].sqrDistToSegment( pt1.x(), pt1.y(), pt2.x(), pt2.y(), info.mTiedPoint );
            }
            if ( pointLengthMap[ i ].mLength > info.mLength )
            {
              info.mTiedPoint = builder->addVertex( info.mTiedPoint );
              info.mFirstPoint = pt1;
              info.mLastPoint = pt2;

              pointLengthMap[ i ] = info;
              tiedPoint[ i ] = info.mTiedPoint;
            }
          }
        }
        pt1 = pt2;
        isFirstPoint = false;
      }
    }
    emit buildProgress( ++step, featureCount );
  }
  // end: tie points to graph

  if ( mDirectionFieldId != -1 )
  {
    la.push_back( mDirectionFieldId );
  }
  if ( mSpeedFieldId != -1 )
  {
    la.push_back( mSpeedFieldId );
  }

  SpeedUnit su = SpeedUnit::byName( mSpeedUnitName );

  // begin graph construction
  vl->select( la );
  while ( vl->nextFeature( feature ) )
  {
    QgsAttributeMap attr = feature.attributeMap();
    int directionType = mDefaultDirection;
    QgsAttributeMap::const_iterator it;
    // What direction have feature?
    for ( it = attr.constBegin(); it != attr.constEnd(); ++it )
    {
      if ( it.key() != mDirectionFieldId )
      {
        continue;
      }
      QString str = it.value().toString();
      if ( str == mBothDirectionValue )
      {
        directionType = 3;
      }
      else if ( str == mDirectDirectionValue )
      {
        directionType = 1;
      }
      else if ( str == mReverseDirectionValue )
      {
        directionType = 2;
      }
    }
    // What speed have feature?
    double speed = 0.0;
    for ( it = attr.constBegin(); it != attr.constEnd(); ++it )
    {
      if ( it.key() != mSpeedFieldId )
      {
        continue;
      }
      speed = it.value().toDouble();
    }
    if ( speed <= 0.0 )
    {
      speed = mDefaultSpeed;
    }

    // begin features segments and add arc to the Graph;
    QgsMultiPolyline mpl;
    if ( feature.geometry()->wkbType() == QGis::WKBLineString )
    {
      mpl.push_back( feature.geometry()->asPolyline() );
    }else if ( feature.geometry()->wkbType() == QGis::WKBMultiLineString )
    {
      mpl = feature.geometry()->asMultiPolyline();
    }
    QgsMultiPolyline::iterator mplIt;
    for ( mplIt = mpl.begin(); mplIt != mpl.end(); ++mplIt )
    {
      QgsPoint pt1, pt2;
      bool isFirstPoint = true;
      QgsPolyline::iterator pointIt;
      for ( pointIt = mplIt->begin(); pointIt != mplIt->end(); ++pointIt )
      {
        pt2 = builder->addVertex( ct.transform( *pointIt ) );

        std::map< double, QgsPoint > pointsOnArc;
        pointsOnArc[ 0.0 ] = pt1;
        pointsOnArc[ pt1.sqrDist( pt2 )] = pt2;

        for ( pointLengthIt = pointLengthMap.begin(); pointLengthIt != pointLengthMap.end(); ++pointLengthIt )
        {
          if ( pointLengthIt->mFirstPoint == pt1 && pointLengthIt->mLastPoint == pt2 )
          {
            QgsPoint tiedPoint = pointLengthIt->mTiedPoint;
            pointsOnArc[ pt1.sqrDist( tiedPoint )] = tiedPoint;
          }
        }

        if ( !isFirstPoint )
        {
          std::map< double, QgsPoint >::iterator pointsIt;
          QgsPoint pt1;
          QgsPoint pt2;
          bool isFirstPoint = true;
          for ( pointsIt = pointsOnArc.begin(); pointsIt != pointsOnArc.end(); ++pointsIt )
          {
            pt2 = pointsIt->second;
            if ( !isFirstPoint )
            {
              double cost = da.measureLine( pt1, pt2 );
              if ( directionType == 1 ||
                   directionType == 3 )
              {
                builder->addArc( pt1, pt2, cost, speed*su.multipler(), feature.id() );
              }
              if ( directionType == 2 ||
                   directionType == 3 )
              {
                builder->addArc( pt2, pt1, cost, speed*su.multipler(), feature.id() );
              }
            }
            pt1 = pt2;
            isFirstPoint = false;
          }
        } // if ( !isFirstPoint )
        pt1 = pt2;
        isFirstPoint = false;
      }
    } // for (it = pl.begin(); it != pl.end(); ++it)
    emit buildProgress( ++step, featureCount );
  } // while( vl->nextFeature(feature) )
} // makeGraph( RgGraphBuilder *builder, const QgsRectangle& rt )
Esempio n. 23
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bool QgsGPXProvider::addFeature( QgsFeature& f )
{
  unsigned char* geo = f.geometry()->asWkb();
  QGis::WkbType wkbType = f.geometry()->wkbType();
  bool success = false;
  QgsGPSObject* obj = NULL;
  const QgsAttributeMap& attrs( f.attributeMap() );
  QgsAttributeMap::const_iterator it;

  // is it a waypoint?
  if ( mFeatureType == WaypointType && geo != NULL && wkbType == QGis::WKBPoint )
  {

    // add geometry
    QgsWaypoint wpt;
    std::memcpy( &wpt.lon, geo + 5, sizeof( double ) );
    std::memcpy( &wpt.lat, geo + 13, sizeof( double ) );

    // add waypoint-specific attributes
    for ( it = attrs.begin(); it != attrs.end(); ++it )
    {
      if ( it.key() == EleAttr )
      {
        bool eleIsOK;
        double ele = it->toDouble( &eleIsOK );
        if ( eleIsOK )
          wpt.ele = ele;
      }
      else if ( it.key() == SymAttr )
      {
        wpt.sym = it->toString();
      }
    }

    QgsGPSData::WaypointIterator iter = data->addWaypoint( wpt );
    success = true;
    obj = &( *iter );
  }

  // is it a route?
  if ( mFeatureType == RouteType && geo != NULL && wkbType == QGis::WKBLineString )
  {

    QgsRoute rte;

    // reset bounds
    rte.xMin = std::numeric_limits<double>::max();
    rte.xMax = -std::numeric_limits<double>::max();
    rte.yMin = std::numeric_limits<double>::max();
    rte.yMax = -std::numeric_limits<double>::max();

    // add geometry
    int nPoints;
    std::memcpy( &nPoints, geo + 5, 4 );
    for ( int i = 0; i < nPoints; ++i )
    {
      double lat, lon;
      std::memcpy( &lon, geo + 9 + 16 * i, sizeof( double ) );
      std::memcpy( &lat, geo + 9 + 16 * i + 8, sizeof( double ) );
      QgsRoutepoint rtept;
      rtept.lat = lat;
      rtept.lon = lon;
      rte.points.push_back( rtept );
      rte.xMin = rte.xMin < lon ? rte.xMin : lon;
      rte.xMax = rte.xMax > lon ? rte.xMax : lon;
      rte.yMin = rte.yMin < lat ? rte.yMin : lat;
      rte.yMax = rte.yMax > lat ? rte.yMax : lat;
    }

    // add route-specific attributes
    for ( it = attrs.begin(); it != attrs.end(); ++it )
    {
      if ( it.key() == NumAttr )
      {
        bool numIsOK;
        long num = it->toInt( &numIsOK );
        if ( numIsOK )
          rte.number = num;
      }
    }

    QgsGPSData::RouteIterator iter = data->addRoute( rte );
    success = true;
    obj = &( *iter );
  }

  // is it a track?
  if ( mFeatureType == TrackType && geo != NULL && wkbType == QGis::WKBLineString )
  {

    QgsTrack trk;
    QgsTrackSegment trkseg;

    // reset bounds
    trk.xMin = std::numeric_limits<double>::max();
    trk.xMax = -std::numeric_limits<double>::max();
    trk.yMin = std::numeric_limits<double>::max();
    trk.yMax = -std::numeric_limits<double>::max();

    // add geometry
    int nPoints;
    std::memcpy( &nPoints, geo + 5, 4 );
    for ( int i = 0; i < nPoints; ++i )
    {
      double lat, lon;
      std::memcpy( &lon, geo + 9 + 16 * i, sizeof( double ) );
      std::memcpy( &lat, geo + 9 + 16 * i + 8, sizeof( double ) );
      QgsTrackpoint trkpt;
      trkpt.lat = lat;
      trkpt.lon = lon;
      trkseg.points.push_back( trkpt );
      trk.xMin = trk.xMin < lon ? trk.xMin : lon;
      trk.xMax = trk.xMax > lon ? trk.xMax : lon;
      trk.yMin = trk.yMin < lat ? trk.yMin : lat;
      trk.yMax = trk.yMax > lat ? trk.yMax : lat;
    }

    // add track-specific attributes
    for ( it = attrs.begin(); it != attrs.end(); ++it )
    {
      if ( it.key() == NumAttr )
      {
        bool numIsOK;
        long num = it->toInt( &numIsOK );
        if ( numIsOK )
          trk.number = num;
      }
    }

    trk.segments.push_back( trkseg );
    QgsGPSData::TrackIterator iter = data->addTrack( trk );
    success = true;
    obj = &( *iter );
  }


  // add common attributes
  if ( obj )
  {
    for ( it = attrs.begin(); it != attrs.end(); ++it )
    {
      if ( it.key() == NameAttr )
      {
        obj->name = it->toString();
      }
      else if ( it.key() == CmtAttr )
      {
        obj->cmt = it->toString();
      }
      else if ( it.key() == DscAttr )
      {
        obj->desc = it->toString();
      }
      else if ( it.key() == SrcAttr )
      {
        obj->src = it->toString();
      }
      else if ( it.key() == URLAttr )
      {
        obj->url = it->toString();
      }
      else if ( it.key() == URLNameAttr )
      {
        obj->urlname = it->toString();
      }
    }
  }

  return success;
}
void QgsMapToolRotatePointSymbols::canvasPressEvent( QMouseEvent *e )
{
  if ( !mCanvas )
  {
    return;
  }

  mActiveLayer = currentVectorLayer();
  if ( !mActiveLayer )
  {
    notifyNotVectorLayer();
    return;
  }

  if ( !mActiveLayer->isEditable() )
  {
    notifyNotEditableLayer();
    return;
  }

  if ( mActiveLayer->geometryType() != QGis::Point )
  {
    return;
  }

  //find the closest feature to the pressed position
  QgsMapCanvasSnapper canvasSnapper( mCanvas );
  QList<QgsSnappingResult> snapResults;
  if ( canvasSnapper.snapToCurrentLayer( e->pos(), snapResults, QgsSnapper::SnapToVertex, -1 ) != 0 || snapResults.size() < 1 )
  {
    QMessageBox::critical( 0, tr( "No point feature" ), tr( "No point feature was detected at the clicked position. Please click closer to the feature or enhance the search tolerance under Settings->Options->Digitizing->Serch radius for vertex edits" ) );
    return; //error during snapping
  }

  mFeatureNumber = snapResults.at( 0 ).snappedAtGeometry;

  //get list with renderer rotation attributes
  if ( layerRotationAttributes( mActiveLayer, mCurrentRotationAttributes ) != 0 )
  {
    return;
  }

  if ( mCurrentRotationAttributes.size() < 1 )
  {
    QMessageBox::critical( 0, tr( "No rotation Attributes" ), tr( "The active point layer does not have a rotation attribute" ) );
    return;
  }

  mSnappedPoint = toCanvasCoordinates( snapResults.at( 0 ).snappedVertex );

  //find out initial arrow direction
  QgsFeature pointFeature;
  if ( !mActiveLayer->featureAtId( mFeatureNumber, pointFeature, false, true ) )
  {
    return;
  }
  const QgsAttributeMap pointFeatureAttributes = pointFeature.attributeMap();
  const QgsAttributeMap::const_iterator attIt = pointFeatureAttributes.find( mCurrentRotationAttributes.at( 0 ) );
  if ( attIt == pointFeatureAttributes.constEnd() )
  {
    return;
  }

  mCurrentRotationFeature = attIt.value().toDouble();
  createPixmapItem( pointFeature );
  if ( mRotationItem )
  {
    mRotationItem->setPointLocation( snapResults.at( 0 ).snappedVertex );
  }
  mCurrentMouseAzimut = calculateAzimut( e->pos() );
  setPixmapItemRotation(( int )( mCurrentMouseAzimut ) );
  mRotating = true;
}