void QgsRelationEditorWidget::addFeature()
{
QgsAttributeMap keyAttrs;
const QgsVectorLayerTools* vlTools = mEditorContext.vectorLayerTools();
if ( mNmRelation.isValid() )
{
// n:m Relation: first let the user create a new feature on the other table
// and autocreate a new linking feature.
QgsFeature f;
if ( vlTools->addFeature( mNmRelation.referencedLayer(), QgsAttributeMap(), QgsGeometry(), &f ) )
{
QgsFeature flink( mRelation.referencingLayer()->fields() ); // Linking feature
flink.setAttribute( mRelation.fieldPairs().at( 0 ).first, mFeature.attribute( mRelation.fieldPairs().at( 0 ).second ) );
flink.setAttribute( mNmRelation.referencingFields().at( 0 ), f.attribute( mNmRelation.referencedFields().at( 0 ) ) );
mRelation.referencingLayer()->addFeature( flink );
updateUi();
}
}
else
{
QgsFields fields = mRelation.referencingLayer()->fields();
Q_FOREACH ( const QgsRelation::FieldPair& fieldPair, mRelation.fieldPairs() )
{
keyAttrs.insert( fields.indexFromName( fieldPair.referencingField() ), mFeature.attribute( fieldPair.referencedField() ) );
}
vlTools->addFeature( mDualView->masterModel()->layer(), keyAttrs );
}
}
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;
}
void QgsGrassEdit::addAttributes( int field, int cat )
{
QString *key = mProvider->key( field );
QString lab;
lab.sprintf( "%d:%d", field, cat );
int tab = mAttributes->addTab( lab );
mAttributes->setField( tab, field );
QString catLabel;
if ( key->isEmpty() )
{
catLabel = "Category";
}
else
{
catLabel = *key;
}
mAttributes->setCat( tab, catLabel, cat );
if ( !key->isEmpty() ) // Database link defined
{
QVector<QgsField> *cols = mProvider->columns( field );
if ( cols->size() == 0 )
{
QString str;
str.setNum( field );
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot describe table for field %1" ).arg( str ) );
}
else
{
QgsAttributeMap *atts = mProvider->attributes( field, cat );
if ( atts->size() == 0 ) // cannot select attributes
{
mAttributes->addTextRow( tab, "WARNING: ATTRIBUTES MISSING" );
}
else
{
for ( int j = 0; j < cols->size(); j++ )
{
QgsField col = ( *cols )[j];
QVariant att = ( *atts )[j];
QgsDebugMsg( QString( " name = %1" ).arg( col.name() ) );
if ( col.name() != *key )
{
QgsDebugMsg( QString( " value = %1" ).arg( att.toString() ) );
mAttributes->addAttribute( tab, col.name(), att.toString(), col.typeName() );
}
}
}
delete atts;
}
delete cols;
}
}
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;
}
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;
}
QVariant QgsFilter::propertyIndexValue( const QgsFeature& f ) const
{
QgsAttributeMap featureAttributes = f.attributeMap();
QgsAttributeMap::const_iterator f_it = featureAttributes.find( mPropertyIndex );
if ( f_it == featureAttributes.constEnd() )
{
return QVariant();
}
return f_it.value();
}
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;
}
QgsAttributeMap QgsAttributes::toMap() const
{
QgsAttributeMap map;
for ( int idx = 0; idx < count(); ++idx )
{
QVariant v = at( idx );
if ( v.isValid() )
map.insert( idx, v );
}
return map;
}
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;
}
}
}
}
void QgsOverlayAnalyzer::combineAttributeMaps( QgsAttributeMap& attributeMapA, QgsAttributeMap attributeMapB )
{
QMap<int, QVariant>::const_iterator i = attributeMapB.constBegin();
QVariant attribute;
int fcount = attributeMapA.size();
while ( i != attributeMapB.constEnd() )
{
attribute = i.value();
attributeMapA.insert( fcount, attribute );
++i;
++fcount;
}
}
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;
}
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 ) );
}
bool QgsVectorLayerEditBuffer::changeAttributeValues( QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues )
{
bool success = true;
for ( auto it = newValues.constBegin() ; it != newValues.constEnd(); ++it )
{
const int field = it.key();
const QVariant newValue = it.value();
QVariant oldValue;
if ( oldValues.contains( field ) )
oldValue = oldValues[field];
success &= changeAttributeValue( fid, field, newValue, oldValue );
}
return success;
}
bool QgsComposerTextTable::getFeatureAttributes( QList<QgsAttributeMap>& attributes )
{
attributes.clear();
QList< QStringList >::const_iterator rowIt = mRowText.constBegin();
QStringList currentStringList;
for ( ; rowIt != mRowText.constEnd(); ++rowIt )
{
currentStringList = *rowIt;
QgsAttributeMap map;
for ( int i = 0; i < currentStringList.size(); ++i )
{
map.insert( i, QVariant( currentStringList.at( i ) ) );
}
attributes.append( map );
}
return true;
}
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;
}
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;
}
void QgsGrassEdit::addCat( int line )
{
int mode = mCatModeBox->currentIndex();
int field = mFieldBox->currentText().toInt();
int cat = mCatEntry->text().toInt();
int type = mProvider->readLine( mPoints, mCats, line );
if ( mode == CAT_MODE_NEXT || mode == CAT_MODE_MANUAL )
{
Vect_cat_set( mCats, field, cat );
}
line = mProvider->rewriteLine( line, type, mPoints, mCats );
mSelectedLine = line;
if ( mAttributes )
mAttributes->setLine( line );
updateSymb();
increaseMaxCat();
// Insert new DB record if link is defined and the record for this cat does not exist
QString *key = mProvider->key( field );
if ( !key->isEmpty() ) // Database link defined
{
QgsAttributeMap *atts = mProvider->attributes( field, cat );
if ( atts->size() == 0 ) // Nothing selected
{
QString *error = mProvider->insertAttributes( field, cat );
if ( !error->isEmpty() )
{
QMessageBox::warning( 0, tr( "Warning" ), *error );
}
delete error;
}
delete atts;
}
addAttributes( field, cat );
}
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 QgsGPXProvider::changeAttributeValues( QgsGPSObject& obj, const QgsAttributeMap& attrs )
{
QgsAttributeMap::const_iterator aIter;
// TODO:
if ( attrs.contains( NameAttr ) )
obj.name = attrs[NameAttr].toString();
if ( attrs.contains( CmtAttr ) )
obj.cmt = attrs[CmtAttr].toString();
if ( attrs.contains( DscAttr ) )
obj.desc = attrs[DscAttr].toString();
if ( attrs.contains( SrcAttr ) )
obj.src = attrs[SrcAttr].toString();
if ( attrs.contains( URLAttr ) )
obj.url = attrs[URLAttr].toString();
if ( attrs.contains( URLNameAttr ) )
obj.urlname = attrs[URLNameAttr].toString();
// waypoint-specific attributes
QgsWaypoint* wpt = dynamic_cast<QgsWaypoint*>( &obj );
if ( wpt != NULL )
{
if ( attrs.contains( SymAttr ) )
wpt->sym = attrs[SymAttr].toString();
if ( attrs.contains( EleAttr ) )
{
bool eleIsOK;
double ele = attrs[EleAttr].toDouble( &eleIsOK );
if ( eleIsOK )
wpt->ele = ele;
}
}
// route- and track-specific attributes
QgsGPSExtended* ext = dynamic_cast<QgsGPSExtended*>( &obj );
if ( ext != NULL )
{
if ( attrs.contains( NumAttr ) )
{
bool eleIsOK;
double ele = attrs[NumAttr].toDouble( &eleIsOK );
if ( eleIsOK )
wpt->ele = ele;
}
}
}
QgsAttributeMap QgsMergeAttributesDialog::mergedAttributesMap() const
{
if ( mFeatureList.size() < 1 )
{
return QgsAttributeMap();
}
QgsAttributeMap resultMap;
for ( int i = 0; i < mTableWidget->columnCount(); i++ )
{
int idx = mTableWidget->horizontalHeaderItem( i )->data( Qt::UserRole ).toInt();
QTableWidgetItem* currentItem = mTableWidget->item( mFeatureList.size() + 1, i );
if ( !currentItem )
continue;
resultMap.insert( idx, currentItem->text() );
}
return resultMap;
}
void QgsFeaturePool::updateFeature( QgsFeature& feature )
{
QgsGeometryMap geometryMap;
geometryMap.insert( feature.id(), QgsGeometry( feature.geometry()->geometry()->clone() ) );
QgsChangedAttributesMap changedAttributesMap;
QgsAttributeMap attribMap;
for ( int i = 0, n = feature.attributes().size(); i < n; ++i )
{
attribMap.insert( i, feature.attributes().at( i ) );
}
changedAttributesMap.insert( feature.id(), attribMap );
mLayerMutex.lock();
mFeatureCache.remove( feature.id() ); // Remove to force reload on next get()
mLayer->dataProvider()->changeGeometryValues( geometryMap );
mLayer->dataProvider()->changeAttributeValues( changedAttributesMap );
mLayerMutex.unlock();
mIndexMutex.lock();
mIndex.deleteFeature( feature );
mIndex.insertFeature( feature );
mIndexMutex.unlock();
}
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++ );
}
}
void QgsRelationReferenceWidget::addEntry()
{
QgsFeature f( mReferencedLayer->fields() );
QgsAttributeMap attributes;
// if custom text is in the combobox and the displayExpression is simply a field, use the current text for the new feature
if ( mComboBox->itemText( mComboBox->currentIndex() ) != mComboBox->currentText() )
{
int fieldIdx = mReferencedLayer->fields().lookupField( mReferencedLayer->displayExpression() );
if ( fieldIdx != -1 )
{
attributes.insert( fieldIdx, mComboBox->currentText() );
}
}
if ( mEditorContext.vectorLayerTools()->addFeature( mReferencedLayer, attributes, QgsGeometry(), &f ) )
{
mComboBox->setIdentifierValue( f.attribute( mReferencingFieldIdx ) );
mAddEntryButton->setEnabled( false );
}
}
int QgsGrassEdit::writeLine( int type, struct line_pnts *Points )
{
int mode = mCatModeBox->currentIndex();
int field = mFieldBox->currentText().toInt();
int cat = mCatEntry->text().toInt();
Vect_reset_cats( mCats );
if ( mode == CAT_MODE_NEXT || mode == CAT_MODE_MANUAL )
{
Vect_cat_set( mCats, field, cat );
// Insert new DB record if link is defined and the record for this cat does not exist
QString *key = mProvider->key( field );
if ( !key->isEmpty() ) // Database link defined
{
QgsAttributeMap *atts = mProvider->attributes( field, cat );
if ( atts->count() == 0 ) // Nothing selected
{
QString *error = mProvider->insertAttributes( field, cat );
if ( !error->isEmpty() )
{
QMessageBox::warning( 0, tr( "Warning" ), *error );
}
delete error;
}
delete atts;
}
}
Vect_line_prune( Points );
int line = mProvider->writeLine( type, Points, mCats );
increaseMaxCat();
return line;
}
void QgsRelationEditorWidget::addFeature()
{
QgsAttributeMap keyAttrs;
const QgsVectorLayerTools *vlTools = mEditorContext.vectorLayerTools();
if ( mNmRelation.isValid() )
{
// n:m Relation: first let the user create a new feature on the other table
// and autocreate a new linking feature.
QgsFeature f;
if ( vlTools->addFeature( mNmRelation.referencedLayer(), QgsAttributeMap(), QgsGeometry(), &f ) )
{
// Fields of the linking table
const QgsFields fields = mRelation.referencingLayer()->fields();
// Expression context for the linking table
QgsExpressionContext context = mRelation.referencingLayer()->createExpressionContext();
QgsAttributeMap linkAttributes;
Q_FOREACH ( const QgsRelation::FieldPair &fieldPair, mRelation.fieldPairs() )
{
int index = fields.indexOf( fieldPair.first );
linkAttributes.insert( index, mFeature.attribute( fieldPair.second ) );
}
Q_FOREACH ( const QgsRelation::FieldPair &fieldPair, mNmRelation.fieldPairs() )
{
int index = fields.indexOf( fieldPair.first );
linkAttributes.insert( index, f.attribute( fieldPair.second ) );
}
QgsFeature linkFeature = QgsVectorLayerUtils::createFeature( mRelation.referencingLayer(), QgsGeometry(), linkAttributes, &context );
mRelation.referencingLayer()->addFeature( linkFeature );
updateUi();
}
}
/*!
\fn OptVectorLayer:: changeAttribute(QgsFeature& feature, int field, QVariant attr)
*/
bool OptVectorLayer:: changeAttribute(QgsFeature& feature, int field, QVariant attr)
{
if ( !isEditable() )
{
startEditing();
}
if ( isModified() )
{
commitChanges();
}
QgsChangedAttributesMap attributeChanges;
QgsAttributeMap newAttMap;
newAttMap.insert(field, attr );
attributeChanges.insert(feature.id(), newAttMap);
//{zhangliye2715} ;api changed
// commitAttributeChanges(QgsAttributeIds(),
// QgsNewAttributesMap(),
// attributeChanges);
dataProvider()->changeAttributeValues(attributeChanges);
//commit or rollBack the change
if ( isModified() )
{
commitChanges();
}
else
{
rollBack();
return false;
}
//make the layer still editable for the next adding operation
startEditing();
return true;
}
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 );
}
int QgsZonalStatistics::calculateStatistics( QgsFeedback *feedback )
{
if ( !mPolygonLayer || mPolygonLayer->geometryType() != QgsWkbTypes::PolygonGeometry )
{
return 1;
}
QgsVectorDataProvider *vectorProvider = mPolygonLayer->dataProvider();
if ( !vectorProvider )
{
return 2;
}
if ( !mRasterLayer )
{
return 3;
}
if ( mRasterLayer->bandCount() < mRasterBand )
{
return 4;
}
mRasterProvider = mRasterLayer->dataProvider();
mInputNodataValue = mRasterProvider->sourceNoDataValue( mRasterBand );
//get geometry info about raster layer
int nCellsXProvider = mRasterProvider->xSize();
int nCellsYProvider = mRasterProvider->ySize();
double cellsizeX = mRasterLayer->rasterUnitsPerPixelX();
if ( cellsizeX < 0 )
{
cellsizeX = -cellsizeX;
}
double cellsizeY = mRasterLayer->rasterUnitsPerPixelY();
if ( cellsizeY < 0 )
{
cellsizeY = -cellsizeY;
}
QgsRectangle rasterBBox = mRasterProvider->extent();
//add the new fields to the provider
QList<QgsField> newFieldList;
QString countFieldName;
if ( mStatistics & QgsZonalStatistics::Count )
{
countFieldName = getUniqueFieldName( mAttributePrefix + "count", newFieldList );
QgsField countField( countFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( countField );
}
QString sumFieldName;
if ( mStatistics & QgsZonalStatistics::Sum )
{
sumFieldName = getUniqueFieldName( mAttributePrefix + "sum", newFieldList );
QgsField sumField( sumFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( sumField );
}
QString meanFieldName;
if ( mStatistics & QgsZonalStatistics::Mean )
{
meanFieldName = getUniqueFieldName( mAttributePrefix + "mean", newFieldList );
QgsField meanField( meanFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( meanField );
}
QString medianFieldName;
if ( mStatistics & QgsZonalStatistics::Median )
{
medianFieldName = getUniqueFieldName( mAttributePrefix + "median", newFieldList );
QgsField medianField( medianFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( medianField );
}
QString stdevFieldName;
if ( mStatistics & QgsZonalStatistics::StDev )
{
stdevFieldName = getUniqueFieldName( mAttributePrefix + "stdev", newFieldList );
QgsField stdField( stdevFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( stdField );
}
QString minFieldName;
if ( mStatistics & QgsZonalStatistics::Min )
{
minFieldName = getUniqueFieldName( mAttributePrefix + "min", newFieldList );
QgsField minField( minFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( minField );
}
QString maxFieldName;
if ( mStatistics & QgsZonalStatistics::Max )
{
maxFieldName = getUniqueFieldName( mAttributePrefix + "max", newFieldList );
QgsField maxField( maxFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( maxField );
}
QString rangeFieldName;
if ( mStatistics & QgsZonalStatistics::Range )
{
rangeFieldName = getUniqueFieldName( mAttributePrefix + "range", newFieldList );
QgsField rangeField( rangeFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( rangeField );
}
QString minorityFieldName;
if ( mStatistics & QgsZonalStatistics::Minority )
{
minorityFieldName = getUniqueFieldName( mAttributePrefix + "minority", newFieldList );
QgsField minorityField( minorityFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( minorityField );
}
QString majorityFieldName;
if ( mStatistics & QgsZonalStatistics::Majority )
{
majorityFieldName = getUniqueFieldName( mAttributePrefix + "majority", newFieldList );
QgsField majField( majorityFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( majField );
}
QString varietyFieldName;
if ( mStatistics & QgsZonalStatistics::Variety )
{
varietyFieldName = getUniqueFieldName( mAttributePrefix + "variety", newFieldList );
QgsField varietyField( varietyFieldName, QVariant::Int, QStringLiteral( "int" ) );
newFieldList.push_back( varietyField );
}
QString varianceFieldName;
if ( mStatistics & QgsZonalStatistics::Variance )
{
varianceFieldName = getUniqueFieldName( mAttributePrefix + "variance", newFieldList );
QgsField varianceField( varianceFieldName, QVariant::Double, QStringLiteral( "double precision" ) );
newFieldList.push_back( varianceField );
}
vectorProvider->addAttributes( newFieldList );
//index of the new fields
int countIndex = mStatistics & QgsZonalStatistics::Count ? vectorProvider->fieldNameIndex( countFieldName ) : -1;
int sumIndex = mStatistics & QgsZonalStatistics::Sum ? vectorProvider->fieldNameIndex( sumFieldName ) : -1;
int meanIndex = mStatistics & QgsZonalStatistics::Mean ? vectorProvider->fieldNameIndex( meanFieldName ) : -1;
int medianIndex = mStatistics & QgsZonalStatistics::Median ? vectorProvider->fieldNameIndex( medianFieldName ) : -1;
int stdevIndex = mStatistics & QgsZonalStatistics::StDev ? vectorProvider->fieldNameIndex( stdevFieldName ) : -1;
int minIndex = mStatistics & QgsZonalStatistics::Min ? vectorProvider->fieldNameIndex( minFieldName ) : -1;
int maxIndex = mStatistics & QgsZonalStatistics::Max ? vectorProvider->fieldNameIndex( maxFieldName ) : -1;
int rangeIndex = mStatistics & QgsZonalStatistics::Range ? vectorProvider->fieldNameIndex( rangeFieldName ) : -1;
int minorityIndex = mStatistics & QgsZonalStatistics::Minority ? vectorProvider->fieldNameIndex( minorityFieldName ) : -1;
int majorityIndex = mStatistics & QgsZonalStatistics::Majority ? vectorProvider->fieldNameIndex( majorityFieldName ) : -1;
int varietyIndex = mStatistics & QgsZonalStatistics::Variety ? vectorProvider->fieldNameIndex( varietyFieldName ) : -1;
int varianceIndex = mStatistics & QgsZonalStatistics::Variance ? vectorProvider->fieldNameIndex( varianceFieldName ) : -1;
if ( ( mStatistics & QgsZonalStatistics::Count && countIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Sum && sumIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Mean && meanIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Median && medianIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::StDev && stdevIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Min && minIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Max && maxIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Range && rangeIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Minority && minorityIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Majority && majorityIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Variety && varietyIndex == -1 )
|| ( mStatistics & QgsZonalStatistics::Variance && varianceIndex == -1 )
)
{
//failed to create a required field
return 8;
}
//progress dialog
long featureCount = vectorProvider->featureCount();
//iterate over each polygon
QgsFeatureRequest request;
request.setSubsetOfAttributes( QgsAttributeList() );
QgsFeatureIterator fi = vectorProvider->getFeatures( request );
QgsFeature f;
bool statsStoreValues = ( mStatistics & QgsZonalStatistics::Median ) ||
( mStatistics & QgsZonalStatistics::StDev ) ||
( mStatistics & QgsZonalStatistics::Variance );
bool statsStoreValueCount = ( mStatistics & QgsZonalStatistics::Minority ) ||
( mStatistics & QgsZonalStatistics::Majority );
FeatureStats featureStats( statsStoreValues, statsStoreValueCount );
int featureCounter = 0;
QgsChangedAttributesMap changeMap;
while ( fi.nextFeature( f ) )
{
if ( feedback && feedback->isCanceled() )
{
break;
}
if ( feedback )
{
feedback->setProgress( 100.0 * static_cast< double >( featureCounter ) / featureCount );
}
if ( !f.hasGeometry() )
{
++featureCounter;
continue;
}
QgsGeometry featureGeometry = f.geometry();
QgsRectangle featureRect = featureGeometry.boundingBox().intersect( &rasterBBox );
if ( featureRect.isEmpty() )
{
++featureCounter;
continue;
}
int offsetX, offsetY, nCellsX, nCellsY;
if ( cellInfoForBBox( rasterBBox, featureRect, cellsizeX, cellsizeY, offsetX, offsetY, nCellsX, nCellsY ) != 0 )
{
++featureCounter;
continue;
}
//avoid access to cells outside of the raster (may occur because of rounding)
if ( ( offsetX + nCellsX ) > nCellsXProvider )
{
nCellsX = nCellsXProvider - offsetX;
}
if ( ( offsetY + nCellsY ) > nCellsYProvider )
{
nCellsY = nCellsYProvider - offsetY;
}
statisticsFromMiddlePointTest( featureGeometry, offsetX, offsetY, nCellsX, nCellsY, cellsizeX, cellsizeY,
rasterBBox, featureStats );
if ( featureStats.count <= 1 )
{
//the cell resolution is probably larger than the polygon area. We switch to precise pixel - polygon intersection in this case
statisticsFromPreciseIntersection( featureGeometry, offsetX, offsetY, nCellsX, nCellsY, cellsizeX, cellsizeY,
rasterBBox, featureStats );
}
//write the statistics value to the vector data provider
QgsAttributeMap changeAttributeMap;
if ( mStatistics & QgsZonalStatistics::Count )
changeAttributeMap.insert( countIndex, QVariant( featureStats.count ) );
if ( mStatistics & QgsZonalStatistics::Sum )
changeAttributeMap.insert( sumIndex, QVariant( featureStats.sum ) );
if ( featureStats.count > 0 )
{
double mean = featureStats.sum / featureStats.count;
if ( mStatistics & QgsZonalStatistics::Mean )
changeAttributeMap.insert( meanIndex, QVariant( mean ) );
if ( mStatistics & QgsZonalStatistics::Median )
{
std::sort( featureStats.values.begin(), featureStats.values.end() );
int size = featureStats.values.count();
bool even = ( size % 2 ) < 1;
double medianValue;
if ( even )
{
medianValue = ( featureStats.values.at( size / 2 - 1 ) + featureStats.values.at( size / 2 ) ) / 2;
}
else //odd
{
medianValue = featureStats.values.at( ( size + 1 ) / 2 - 1 );
}
changeAttributeMap.insert( medianIndex, QVariant( medianValue ) );
}
if ( mStatistics & QgsZonalStatistics::StDev || mStatistics & QgsZonalStatistics::Variance )
{
double sumSquared = 0;
for ( int i = 0; i < featureStats.values.count(); ++i )
{
double diff = featureStats.values.at( i ) - mean;
sumSquared += diff * diff;
}
double variance = sumSquared / featureStats.values.count();
if ( mStatistics & QgsZonalStatistics::StDev )
{
double stdev = std::pow( variance, 0.5 );
changeAttributeMap.insert( stdevIndex, QVariant( stdev ) );
}
if ( mStatistics & QgsZonalStatistics::Variance )
changeAttributeMap.insert( varianceIndex, QVariant( variance ) );
}
if ( mStatistics & QgsZonalStatistics::Min )
changeAttributeMap.insert( minIndex, QVariant( featureStats.min ) );
if ( mStatistics & QgsZonalStatistics::Max )
changeAttributeMap.insert( maxIndex, QVariant( featureStats.max ) );
if ( mStatistics & QgsZonalStatistics::Range )
changeAttributeMap.insert( rangeIndex, QVariant( featureStats.max - featureStats.min ) );
if ( mStatistics & QgsZonalStatistics::Minority || mStatistics & QgsZonalStatistics::Majority )
{
QList<int> vals = featureStats.valueCount.values();
std::sort( vals.begin(), vals.end() );
if ( mStatistics & QgsZonalStatistics::Minority )
{
float minorityKey = featureStats.valueCount.key( vals.first() );
changeAttributeMap.insert( minorityIndex, QVariant( minorityKey ) );
}
if ( mStatistics & QgsZonalStatistics::Majority )
{
float majKey = featureStats.valueCount.key( vals.last() );
changeAttributeMap.insert( majorityIndex, QVariant( majKey ) );
}
}
if ( mStatistics & QgsZonalStatistics::Variety )
changeAttributeMap.insert( varietyIndex, QVariant( featureStats.valueCount.count() ) );
}
changeMap.insert( f.id(), changeAttributeMap );
++featureCounter;
}
vectorProvider->changeAttributeValues( changeMap );
if ( feedback )
{
feedback->setProgress( 100 );
}
mPolygonLayer->updateFields();
if ( feedback && feedback->isCanceled() )
{
return 9;
}
return 0;
}
bool QgsFeatureAction::addFeature( const QgsAttributeMap& defaultAttributes )
{
if ( !mLayer || !mLayer->isEditable() )
return false;
QgsVectorDataProvider *provider = mLayer->dataProvider();
QSettings settings;
bool reuseLastValues = settings.value( "/qgis/digitizing/reuseLastValues", false ).toBool();
QgsDebugMsg( QString( "reuseLastValues: %1" ).arg( reuseLastValues ) );
// add the fields to the QgsFeature
const QgsFields& fields = mLayer->pendingFields();
mFeature.initAttributes( fields.count() );
for ( int idx = 0; idx < fields.count(); ++idx )
{
if ( defaultAttributes.contains( idx ) )
{
QgsDebugMsg( QString( "Using specified default %1 for %2" ).arg( defaultAttributes.value( idx ).toString() ).arg( idx ) );
mFeature.setAttribute( idx, defaultAttributes.value( idx ) );
}
else if ( reuseLastValues && mLastUsedValues.contains( mLayer ) && mLastUsedValues[ mLayer ].contains( idx ) )
{
QgsDebugMsg( QString( "reusing %1 for %2" ).arg( mLastUsedValues[ mLayer ][idx].toString() ).arg( idx ) );
mFeature.setAttribute( idx, mLastUsedValues[ mLayer ][idx] );
}
else
{
mFeature.setAttribute( idx, provider->defaultValue( idx ) );
}
}
bool res = false;
mLayer->beginEditCommand( text() );
// show the dialog to enter attribute values
bool isDisabledAttributeValuesDlg = settings.value( "/qgis/digitizing/disable_enter_attribute_values_dialog", false ).toBool();
// override application-wide setting with any layer setting
switch ( mLayer->featureFormSuppress() )
{
case QgsVectorLayer::SuppressOn:
isDisabledAttributeValuesDlg = true;
break;
case QgsVectorLayer::SuppressOff:
isDisabledAttributeValuesDlg = false;
break;
case QgsVectorLayer::SuppressDefault:
break;
}
if ( isDisabledAttributeValuesDlg )
{
res = mLayer->addFeature( mFeature );
}
else
{
QgsAttributes origValues;
if ( reuseLastValues )
origValues = mFeature.attributes();
QgsAttributeDialog *dialog = newDialog( false );
if ( dialog->exec() )
{
if ( reuseLastValues )
{
for ( int idx = 0; idx < fields.count(); ++idx )
{
const QgsAttributes &newValues = mFeature.attributes();
if ( origValues[idx] != newValues[idx] )
{
QgsDebugMsg( QString( "saving %1 for %2" ).arg( mLastUsedValues[ mLayer ][idx].toString() ).arg( idx ) );
mLastUsedValues[ mLayer ][idx] = newValues[idx];
}
}
}
res = mLayer->addFeature( mFeature );
}
else
{
QgsDebugMsg( "Adding feature to layer failed" );
res = false;
}
}
if ( res )
mLayer->endEditCommand();
else
mLayer->destroyEditCommand();
return res;
}