void QgsVectorLayerFeatureIterator::useChangedAttributeFeature( QgsFeatureId fid, const QgsGeometry& geom, QgsFeature& f )
{
f.setFeatureId( fid );
f.setValid( true );
f.setFields( &L->mUpdatedFields );
if ( !( mRequest.flags() & QgsFeatureRequest::NoGeometry ) )
f.setGeometry( geom );
bool subsetAttrs = ( mRequest.flags() & QgsFeatureRequest::SubsetOfAttributes );
if ( !subsetAttrs || ( subsetAttrs && mRequest.subsetOfAttributes().count() > 0 ) )
{
// retrieve attributes from provider
QgsFeature tmp;
//mDataProvider->featureAtId( fid, tmp, false, mFetchProvAttributes );
QgsFeatureRequest request;
request.setFilterFid( fid ).setFlags( QgsFeatureRequest::NoGeometry ).setSubsetOfAttributes( mProviderRequest.subsetOfAttributes() );
QgsFeatureIterator fi = L->dataProvider()->getFeatures( request );
if ( fi.nextFeature( tmp ) )
{
updateChangedAttributes( tmp );
f.setAttributes( tmp.attributes() );
}
}
if ( !mFetchJoinInfo.isEmpty() )
addJoinedAttributes( f );
}
int QgsMapToolCapture::fetchLayerPoint( const QgsPointLocator::Match &match, QgsPoint &layerPoint )
{
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mCanvas->currentLayer() );
QgsVectorLayer *sourceLayer = match.layer();
if ( match.isValid() && match.hasVertex() && sourceLayer &&
( sourceLayer->crs() == vlayer->crs() ) )
{
QgsFeature f;
QgsFeatureRequest request;
request.setFilterFid( match.featureId() );
bool fetched = match.layer()->getFeatures( request ).nextFeature( f );
if ( fetched )
{
QgsVertexId vId;
if ( !f.geometry().vertexIdFromVertexNr( match.vertexIndex(), vId ) )
return 2;
layerPoint = f.geometry().constGet()->vertexAt( vId );
// ZM support depends on the target layer
if ( !QgsWkbTypes::hasZ( vlayer->wkbType() ) )
{
layerPoint.dropZValue();
}
if ( !QgsWkbTypes::hasM( vlayer->wkbType() ) )
{
layerPoint.dropMValue();
}
return 0;
}
else
{
return 2;
}
}
else
{
return 1;
}
}
void QgsVectorLayerFeatureIterator::useChangedAttributeFeature( QgsFeatureId fid, const QgsGeometry& geom, QgsFeature& f )
{
f.setFeatureId( fid );
f.setValid( true );
f.setFields( &L->mUpdatedFields );
if ( !( mRequest.flags() & QgsFeatureRequest::NoGeometry ) )
{
f.setGeometry( geom );
// simplify the edited geometry using its simplifier configured
if ( mEditGeometrySimplifier )
{
QgsGeometry* geometry = f.geometry();
QGis::GeometryType geometryType = geometry->type();
if ( geometryType == QGis::Line || geometryType == QGis::Polygon ) mEditGeometrySimplifier->simplifyGeometry( geometry );
}
}
bool subsetAttrs = ( mRequest.flags() & QgsFeatureRequest::SubsetOfAttributes );
if ( !subsetAttrs || ( subsetAttrs && mRequest.subsetOfAttributes().count() > 0 ) )
{
// retrieve attributes from provider
QgsFeature tmp;
//mDataProvider->featureAtId( fid, tmp, false, mFetchProvAttributes );
QgsFeatureRequest request;
request.setFilterFid( fid ).setFlags( QgsFeatureRequest::NoGeometry );
if ( subsetAttrs )
{
request.setSubsetOfAttributes( mProviderRequest.subsetOfAttributes() );
}
QgsFeatureIterator fi = L->dataProvider()->getFeatures( request );
if ( fi.nextFeature( tmp ) )
{
updateChangedAttributes( tmp );
f.setAttributes( tmp.attributes() );
}
}
if ( !mFetchJoinInfo.isEmpty() )
addJoinedAttributes( f );
}
void QgsVectorLayerUndoCommandChangeAttribute::undo()
{
QVariant original = mOldValue;
if ( FID_IS_NEW( mFid ) )
{
// added feature
QgsFeatureMap::iterator it = mBuffer->mAddedFeatures.find( mFid );
Q_ASSERT( it != mBuffer->mAddedFeatures.end() );
it.value().setAttribute( mFieldIndex, mOldValue );
}
else if ( mFirstChange )
{
// existing feature
mBuffer->mChangedAttributeValues[mFid].remove( mFieldIndex );
if ( mBuffer->mChangedAttributeValues[mFid].isEmpty() )
mBuffer->mChangedAttributeValues.remove( mFid );
if ( !mOldValue.isValid() )
{
// get old value from provider
QgsFeature tmp;
QgsFeatureRequest request;
request.setFilterFid( mFid );
request.setFlags( QgsFeatureRequest::NoGeometry );
request.setSubsetOfAttributes( QgsAttributeList() << mFieldIndex );
QgsFeatureIterator fi = layer()->getFeatures( request );
if ( fi.nextFeature( tmp ) )
original = tmp.attribute( mFieldIndex );
}
}
else
{
mBuffer->mChangedAttributeValues[mFid][mFieldIndex] = mOldValue;
}
emit mBuffer->attributeValueChanged( mFid, mFieldIndex, original );
}
bool QgsComposerAttributeTableV2::getTableContents( QgsComposerTableContents &contents )
{
contents.clear();
if (( mSource == QgsComposerAttributeTableV2::AtlasFeature || mSource == QgsComposerAttributeTableV2::RelationChildren )
&& !mComposition->atlasComposition().enabled() )
{
//source mode requires atlas, but atlas disabled
return false;
}
QgsVectorLayer* layer = sourceLayer();
if ( !layer )
{
//no source layer
return false;
}
//prepare filter expression
std::auto_ptr<QgsExpression> filterExpression;
bool activeFilter = false;
if ( mFilterFeatures && !mFeatureFilter.isEmpty() )
{
filterExpression = std::auto_ptr<QgsExpression>( new QgsExpression( mFeatureFilter ) );
if ( !filterExpression->hasParserError() )
{
activeFilter = true;
}
}
QgsRectangle selectionRect;
if ( mComposerMap && mShowOnlyVisibleFeatures )
{
selectionRect = *mComposerMap->currentMapExtent();
if ( layer && mComposition->mapSettings().hasCrsTransformEnabled() )
{
//transform back to layer CRS
QgsCoordinateTransform coordTransform( layer->crs(), mComposition->mapSettings().destinationCrs() );
try
{
selectionRect = coordTransform.transformBoundingBox( selectionRect, QgsCoordinateTransform::ReverseTransform );
}
catch ( QgsCsException &cse )
{
Q_UNUSED( cse );
return false;
}
}
}
QgsFeatureRequest req;
if ( mSource == QgsComposerAttributeTableV2::RelationChildren )
{
QgsRelation relation = QgsProject::instance()->relationManager()->relation( mRelationId );
QgsFeature* atlasFeature = mComposition->atlasComposition().currentFeature();
if ( atlasFeature )
{
req = relation.getRelatedFeaturesRequest( *atlasFeature );
}
else
{
//no atlas feature, so empty table
return true;
}
}
if ( !selectionRect.isEmpty() )
req.setFilterRect( selectionRect );
req.setFlags( mShowOnlyVisibleFeatures ? QgsFeatureRequest::ExactIntersect : QgsFeatureRequest::NoFlags );
if ( mSource == QgsComposerAttributeTableV2::AtlasFeature
&& mComposition->atlasComposition().enabled() )
{
//source mode is current atlas feature
QgsFeature* atlasFeature = mComposition->atlasComposition().currentFeature();
if ( atlasFeature )
{
req.setFilterFid( atlasFeature->id() );
}
else
{
//no atlas feature, so empty table
return true;
}
}
QgsFeature f;
int counter = 0;
QgsFeatureIterator fit = layer->getFeatures( req );
while ( fit.nextFeature( f ) && counter < mMaximumNumberOfFeatures )
{
//check feature against filter
if ( activeFilter )
{
QVariant result = filterExpression->evaluate( &f, layer->pendingFields() );
// skip this feature if the filter evaluation is false
if ( !result.toBool() )
{
continue;
}
}
//check against atlas feature intersection
if ( mFilterToAtlasIntersection )
{
if ( !f.geometry() || ! mComposition->atlasComposition().enabled() )
{
continue;
}
QgsFeature* atlasFeature = mComposition->atlasComposition().currentFeature();
if ( !atlasFeature || !atlasFeature->geometry() ||
!f.geometry()->intersects( atlasFeature->geometry() ) )
{
//feature falls outside current atlas feature
continue;
}
}
QgsComposerTableRow currentRow;
QList<QgsComposerTableColumn*>::const_iterator columnIt = mColumns.constBegin();
for ( ; columnIt != mColumns.constEnd(); ++columnIt )
{
int idx = layer->fieldNameIndex(( *columnIt )->attribute() );
if ( idx != -1 )
{
currentRow << f.attributes()[idx];
}
else
{
// Lets assume it's an expression
QgsExpression* expression = new QgsExpression(( *columnIt )->attribute() );
expression->setCurrentRowNumber( counter + 1 );
expression->prepare( layer->pendingFields() );
QVariant value = expression->evaluate( f ) ;
currentRow << value;
}
}
if ( !mShowUniqueRowsOnly || !contentsContainsRow( contents, currentRow ) )
{
contents << currentRow;
++counter;
}
}
//sort the list, starting with the last attribute
QgsComposerAttributeTableCompareV2 c;
QList< QPair<int, bool> > sortColumns = sortAttributes();
for ( int i = sortColumns.size() - 1; i >= 0; --i )
{
c.setSortColumn( sortColumns.at( i ).first );
c.setAscending( sortColumns.at( i ).second );
qStableSort( contents.begin(), contents.end(), c );
}
recalculateTableSize();
return true;
}
