bool QgsAttributeTableModel::removeRows( int row, int count, const QModelIndex &parent )
{
if ( row < 0 || count < 1 )
return false;
beginRemoveRows( parent, row, row + count - 1 );
#ifdef QGISDEBUG
if ( 3 <= QgsLogger::debugLevel() )
QgsDebugMsgLevel( QStringLiteral( "remove %2 rows at %1 (rows %3, ids %4)" ).arg( row ).arg( count ).arg( mRowIdMap.size() ).arg( mIdRowMap.size() ), 3 );
#endif
// clean old references
for ( int i = row; i < row + count; i++ )
{
for ( SortCache &cache : mSortCaches )
cache.sortCache.remove( mRowIdMap[i] );
mIdRowMap.remove( mRowIdMap[i] );
mRowIdMap.remove( i );
}
// update maps
int n = mRowIdMap.size() + count;
for ( int i = row + count; i < n; i++ )
{
QgsFeatureId id = mRowIdMap[i];
mIdRowMap[id] -= count;
mRowIdMap[i - count] = id;
mRowIdMap.remove( i );
}
#ifdef QGISDEBUG
if ( 4 <= QgsLogger::debugLevel() )
{
QgsDebugMsgLevel( QStringLiteral( "after removal rows %1, ids %2" ).arg( mRowIdMap.size() ).arg( mIdRowMap.size() ), 4 );
QgsDebugMsgLevel( QStringLiteral( "id->row" ), 4 );
for ( QHash<QgsFeatureId, int>::const_iterator it = mIdRowMap.constBegin(); it != mIdRowMap.constEnd(); ++it )
QgsDebugMsgLevel( QStringLiteral( "%1->%2" ).arg( FID_TO_STRING( it.key() ) ).arg( *it ), 4 );
QgsDebugMsgLevel( QStringLiteral( "row->id" ), 4 );
for ( QHash<int, QgsFeatureId>::const_iterator it = mRowIdMap.constBegin(); it != mRowIdMap.constEnd(); ++it )
QgsDebugMsgLevel( QStringLiteral( "%1->%2" ).arg( it.key() ).arg( FID_TO_STRING( *it ) ), 4 );
}
#endif
Q_ASSERT( mRowIdMap.size() == mIdRowMap.size() );
endRemoveRows();
return true;
}
bool QgsDb2Provider::changeGeometryValues( const QgsGeometryMap &geometry_map )
{
if ( geometry_map.isEmpty() )
return true;
if ( mFidColName.isEmpty() )
return false;
for ( QgsGeometryMap::const_iterator it = geometry_map.constBegin(); it != geometry_map.constEnd(); ++it )
{
QgsFeatureId fid = it.key();
// skip added features
if ( FID_IS_NEW( fid ) )
{
continue;
}
QString statement;
statement = QString( "UPDATE %1.%2 SET %3 = " )
.arg( mSchemaName, mTableName, mGeometryColName );
if ( !mDatabase.isOpen() )
{
QString errMsg;
mDatabase = getDatabase( mConnInfo, errMsg );
if ( !errMsg.isEmpty() )
{
return false;
}
}
QSqlQuery query = QSqlQuery( mDatabase );
query.setForwardOnly( true );
statement += QString( "db2gse.%1(CAST (%2 AS BLOB(2M)),%3)" )
.arg( mGeometryColType,
QString( "?" ),
QString::number( mSRId ) );
// set attribute filter
statement += QString( " WHERE %1=%2" ).arg( mFidColName, FID_TO_STRING( fid ) );
QgsDebugMsg( statement );
if ( !query.prepare( statement ) )
{
QgsDebugMsg( query.lastError().text() );
return false;
}
// add geometry param
QByteArray bytea = QByteArray(( char* )it->asWkb(), ( int ) it->wkbSize() );
query.addBindValue( bytea, QSql::In | QSql::Binary );
if ( !query.exec() )
{
QgsDebugMsg( query.lastError().text() );
return false;
}
}
return true;
}
void QgsPointDisplacementRenderer::printInfoDisplacementGroups()
{
int nGroups = mDisplacementGroups.size();
QgsDebugMsg( "number of displacement groups:" + QString::number( nGroups ) );
for ( int i = 0; i < nGroups; ++i )
{
QgsDebugMsg( "***************displacement group " + QString::number( i ) );
QMap<QgsFeatureId, QgsFeature>::const_iterator it = mDisplacementGroups.at( i ).constBegin();
for ( ; it != mDisplacementGroups.at( i ).constEnd(); ++it )
{
QgsDebugMsg( FID_TO_STRING( it.key() ) );
}
}
QgsDebugMsg( "********all displacement ids*********" );
QSet<QgsFeatureId>::const_iterator iIt = mDisplacementIds.constBegin();
for ( ; iIt != mDisplacementIds.constEnd(); ++iIt )
{
QgsDebugMsg( FID_TO_STRING( *iIt ) );
}
}
bool QgsAttributeTableModel::removeRows( int row, int count, const QModelIndex &parent )
{
Q_UNUSED( parent );
QgsDebugMsgLevel( QString( "remove %2 rows at %1 (rows %3, ids %4)" ).arg( row ).arg( count ).arg( mRowIdMap.size() ).arg( mIdRowMap.size() ), 3 );
// clean old references
for ( int i = row; i < row + count; i++ )
{
mIdRowMap.remove( mRowIdMap[ i ] );
mRowIdMap.remove( i );
}
// update maps
int n = mRowIdMap.size() + count;
for ( int i = row + count; i < n; i++ )
{
QgsFeatureId id = mRowIdMap[i];
mIdRowMap[ id ] -= count;
mRowIdMap[ i-count ] = id;
mRowIdMap.remove( i );
}
#ifdef QGISDEBUG
QgsDebugMsgLevel( QString( "after removal rows %1, ids %2" ).arg( mRowIdMap.size() ).arg( mIdRowMap.size() ), 4 );
QgsDebugMsgLevel( "id->row", 4 );
for ( QHash<QgsFeatureId, int>::iterator it = mIdRowMap.begin(); it != mIdRowMap.end(); ++it )
QgsDebugMsgLevel( QString( "%1->%2" ).arg( FID_TO_STRING( it.key() ) ).arg( *it ), 4 );
QHash<QgsFeatureId, int>::iterator idit;
QgsDebugMsgLevel( "row->id", 4 );
for ( QHash<int, QgsFeatureId>::iterator it = mRowIdMap.begin(); it != mRowIdMap.end(); ++it )
QgsDebugMsgLevel( QString( "%1->%2" ).arg( it.key() ).arg( FID_TO_STRING( *it ) ), 4 );
#endif
Q_ASSERT( mRowIdMap.size() == mIdRowMap.size() );
return true;
}
void QgsPointDisplacementRenderer::printInfoDisplacementGroups()
{
int nGroups = mDisplacementGroups.size();
QgsDebugMsg( "number of displacement groups:" + QString::number( nGroups ) );
for ( int i = 0; i < nGroups; ++i )
{
QgsDebugMsg( "***************displacement group " + QString::number( i ) );
DisplacementGroup::const_iterator it = mDisplacementGroups.at( i ).constBegin();
for ( ; it != mDisplacementGroups.at( i ).constEnd(); ++it )
{
QgsDebugMsg( FID_TO_STRING( it.key() ) );
}
}
}
bool QgsDb2Provider::deleteFeatures( const QgsFeatureIds & id )
{
if ( mFidColName.isEmpty() )
return false;
QString featureIds;
for ( QgsFeatureIds::const_iterator it = id.begin(); it != id.end(); ++it )
{
if ( featureIds.isEmpty() )
featureIds = FID_TO_STRING( *it );
else
featureIds += ',' + FID_TO_STRING( *it );
}
if ( !mDatabase.isOpen() )
{
QString errMsg;
mDatabase = getDatabase( mConnInfo, errMsg );
if ( !errMsg.isEmpty() )
{
return false;
}
}
QSqlQuery query = QSqlQuery( mDatabase );
query.setForwardOnly( true );
QString statement;
statement = QString( "DELETE FROM %1.%2 WHERE %3 IN (%4)" ).arg( mSchemaName,
mTableName, mFidColName, featureIds );
QgsDebugMsg( statement );
if ( !query.exec( statement ) )
{
QgsDebugMsg( query.lastError().text() );
return false;
}
return true;
}
QString QgsSpatialQueryDialog::getSubsetFIDs( const QgsFeatureIds *fids, QString fieldFID )
{
if ( fids->size() == 0 )
{
return QString( "" );
}
QSetIterator <QgsFeatureId> item( *fids );
QStringList lstFID;
while ( item.hasNext() )
{
lstFID.append( FID_TO_STRING( item.next() ) );
}
QString qFormat( "%1 in (%2)" );
QString qReturn = qFormat.arg( fieldFID ).arg( lstFID.join( "," ) );
lstFID.clear();
return qReturn;
} // QString QgsSpatialQueryDialog::getSubsetFIDs( const QSet< int > *fids, QString fieldFID )
QComboBox *QgsMergeAttributesDialog::createMergeComboBox( QVariant::Type columnType ) const
{
QComboBox *newComboBox = new QComboBox();
//add items for feature
QgsFeatureList::const_iterator f_it = mFeatureList.constBegin();
for ( ; f_it != mFeatureList.constEnd(); ++f_it )
{
newComboBox->addItem( tr( "Feature %1" ).arg( f_it->id() ), QString( "f%1" ).arg( FID_TO_STRING( f_it->id() ) ) );
}
switch ( columnType )
{
case QVariant::Double:
case QVariant::Int:
case QVariant::LongLong:
{
Q_FOREACH ( QgsStatisticalSummary::Statistic stat, mDisplayStats )
{
newComboBox->addItem( QgsStatisticalSummary::displayName( stat ) , stat );
}
break;
}
case QVariant::String:
newComboBox->addItem( tr( "Concatenation" ), "concat" );
break;
//TODO - add date/time/datetime handling
default:
break;
}
layItem = new QTreeWidgetItem( QStringList() << QString::number( lstResults->topLevelItemCount() ) << vlayer->name() );
layItem->setData( 0, Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( vlayer ) ) );
lstResults->addTopLevelItem( layItem );
connect( vlayer, SIGNAL( layerDeleted() ), this, SLOT( layerDestroyed() ) );
connect( vlayer, SIGNAL( layerCrsChanged() ), this, SLOT( layerDestroyed() ) );
connect( vlayer, SIGNAL( featureDeleted( QgsFeatureId ) ), this, SLOT( featureDeleted( QgsFeatureId ) ) );
connect( vlayer, SIGNAL( attributeValueChanged( QgsFeatureId, int, const QVariant & ) ),
this, SLOT( attributeValueChanged( QgsFeatureId, int, const QVariant & ) ) );
connect( vlayer, SIGNAL( editingStarted() ), this, SLOT( editingToggled() ) );
connect( vlayer, SIGNAL( editingStopped() ), this, SLOT( editingToggled() ) );
}
//QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( fields, f, crs );
QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( vlayer->pendingFields(), f, vlayer->crs() );
featItem->setData( 0, Qt::UserRole, FID_TO_STRING( f.id() ) );
featItem->setData( 0, Qt::UserRole + 1, mFeatures.size() );
mFeatures << f;
layItem->addChild( featItem );
const QgsFields &fields = vlayer->pendingFields();
const QgsAttributes& attrs = f.attributes();
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
QString value = fields[i].displayString( attrs[i] );
QTreeWidgetItem *attrItem = new QTreeWidgetItem( QStringList() << QString::number( i ) << value );
attrItem->setData( 0, Qt::DisplayRole, vlayer->attributeDisplayName( i ) );
void QgsMergeAttributesDialog::mRemoveFeatureFromSelectionButton_clicked()
{
if ( !mVectorLayer )
{
return;
}
//find out feature id of selected row
QList<QTableWidgetItem *> selectionList = mTableWidget->selectedItems();
if ( selectionList.isEmpty() )
{
return;
}
//assume all selected items to be in the same row
QTableWidgetItem *selectedItem = selectionList[0];
int selectedRow = selectedItem->row();
QTableWidgetItem *selectedHeaderItem = mTableWidget->verticalHeaderItem( selectedRow );
if ( !selectedHeaderItem )
{
return;
}
bool conversionSuccess;
QgsFeatureId featureId = selectedHeaderItem->text().toLongLong( &conversionSuccess );
if ( !conversionSuccess )
{
selectedRowChanged();
return;
}
mTableWidget->removeRow( selectedRow );
selectedRowChanged();
//remove feature from the vector layer selection
QgsFeatureIds selectedIds = mVectorLayer->selectedFeatureIds();
selectedIds.remove( featureId );
mVectorLayer->selectByIds( selectedIds );
mMapCanvas->repaint();
//remove feature option from the combo box (without altering the current merge values)
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
QComboBox *currentComboBox = qobject_cast<QComboBox *>( mTableWidget->cellWidget( 0, i ) );
if ( !currentComboBox )
continue;
currentComboBox->blockSignals( true );
currentComboBox->removeItem( currentComboBox->findData( QStringLiteral( "f%1" ).arg( FID_TO_STRING( featureId ) ) ) );
currentComboBox->blockSignals( false );
}
//finally remove the feature from mFeatureList
for ( QgsFeatureList::iterator f_it = mFeatureList.begin();
f_it != mFeatureList.end();
++f_it )
{
if ( f_it->id() == featureId )
{
mFeatureList.erase( f_it );
break;
}
}
}
void QgsMergeAttributesDialog::mFromSelectedPushButton_clicked()
{
//find the selected feature
if ( !mVectorLayer )
{
return;
}
//find out feature id of selected row
QList<QTableWidgetItem *> selectionList = mTableWidget->selectedItems();
if ( selectionList.isEmpty() )
{
return;
}
//assume all selected items to be in the same row
QTableWidgetItem *selectedItem = selectionList[0];
int selectedRow = selectedItem->row();
QTableWidgetItem *selectedHeaderItem = mTableWidget->verticalHeaderItem( selectedRow );
if ( !selectedHeaderItem )
{
return;
}
bool conversionSuccess;
QgsFeatureId featureId = selectedHeaderItem->text().toLongLong( &conversionSuccess );
if ( !conversionSuccess )
{
return;
}
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
QComboBox *currentComboBox = qobject_cast<QComboBox *>( mTableWidget->cellWidget( 0, i ) );
if ( !currentComboBox )
continue;
if ( mVectorLayer->fields().at( i ).constraints().constraints() & QgsFieldConstraints::ConstraintUnique )
{
currentComboBox->setCurrentIndex( currentComboBox->findData( "skip" ) );
}
else
{
currentComboBox->setCurrentIndex( currentComboBox->findData( QStringLiteral( "f%1" ).arg( FID_TO_STRING( featureId ) ) ) );
}
}
}
QComboBox *QgsMergeAttributesDialog::createMergeComboBox( QVariant::Type columnType ) const
{
QComboBox *newComboBox = new QComboBox();
//add items for feature
QgsFeatureList::const_iterator f_it = mFeatureList.constBegin();
for ( ; f_it != mFeatureList.constEnd(); ++f_it )
{
newComboBox->addItem( tr( "Feature %1" ).arg( f_it->id() ), QStringLiteral( "f%1" ).arg( FID_TO_STRING( f_it->id() ) ) );
}
switch ( columnType )
{
case QVariant::Double:
case QVariant::Int:
case QVariant::LongLong:
{
for ( QgsStatisticalSummary::Statistic stat : qgis::as_const( DISPLAY_STATS ) )
{
newComboBox->addItem( QgsStatisticalSummary::displayName( stat ), stat );
}
break;
}
case QVariant::String:
newComboBox->addItem( tr( "Concatenation" ), "concat" );
break;
//TODO - add date/time/datetime handling
default:
break;
}
newComboBox->addItem( tr( "Skip attribute" ), "skip" );
newComboBox->addItem( tr( "Manual value" ), "manual" );
connect( newComboBox, static_cast<void ( QComboBox::* )( const QString & )>( &QComboBox::currentIndexChanged ),
this, &QgsMergeAttributesDialog::comboValueChanged );
return newComboBox;
}
void QgsMergeAttributesDialog::createTableWidgetContents()
{
//get information about attributes from vector layer
if ( !mVectorLayer )
{
return;
}
//combo box row, attributes titles, feature values and current merge results
mTableWidget->setRowCount( mFeatureList.size() + 2 );
//create combo boxes and insert attribute names
mFields = mVectorLayer->fields();
int col = 0;
mHiddenAttributes.clear();
for ( int idx = 0; idx < mFields.count(); ++idx )
{
const QgsEditorWidgetSetup setup = QgsGui::editorWidgetRegistry()->findBest( mVectorLayer, mFields.at( idx ).name() );
if ( setup.type() == QLatin1String( "Hidden" ) || setup.type() == QLatin1String( "Immutable" ) )
{
mHiddenAttributes.insert( idx );
continue;
}
mTableWidget->setColumnCount( col + 1 );
QComboBox *cb = createMergeComboBox( mFields.at( idx ).type() );
if ( mFields.at( idx ).constraints().constraints() & QgsFieldConstraints::ConstraintUnique )
{
cb->setCurrentIndex( cb->findData( "skip" ) );
}
mTableWidget->setCellWidget( 0, col, cb );
QTableWidgetItem *item = new QTableWidgetItem( mFields.at( idx ).name() );
item->setData( FieldIndex, idx );
mTableWidget->setHorizontalHeaderItem( col++, item );
}
//insert the attribute values
QStringList verticalHeaderLabels; //the id column is in the
verticalHeaderLabels << tr( "Id" );
for ( int i = 0; i < mFeatureList.size(); ++i )
{
verticalHeaderLabels << FID_TO_STRING( mFeatureList[i].id() );
QgsAttributes attrs = mFeatureList.at( i ).attributes();
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
int idx = mTableWidget->horizontalHeaderItem( j )->data( FieldIndex ).toInt();
const QgsEditorWidgetSetup setup = mFields.at( idx ).editorWidgetSetup();
const QgsFieldFormatter *formatter = QgsApplication::fieldFormatterRegistry()->fieldFormatter( setup.type() );
QString stringVal = formatter->representValue( mVectorLayer, idx, setup.config(), QVariant(), attrs.at( idx ) );
QTableWidgetItem *attributeValItem = new QTableWidgetItem( stringVal );
attributeValItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
mTableWidget->setItem( i + 1, j, attributeValItem );
}
}
//merge
verticalHeaderLabels << tr( "Merge" );
mTableWidget->setVerticalHeaderLabels( verticalHeaderLabels );
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
QTableWidgetItem *mergedItem = new QTableWidgetItem();
mergedItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable );
mTableWidget->setItem( mTableWidget->rowCount() - 1, j, mergedItem );
}
//insert currently merged values
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
refreshMergedValue( i );
}
//initially set any fields with default values/default value clauses to that value
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
int idx = mTableWidget->horizontalHeaderItem( j )->data( FieldIndex ).toInt();
bool setToManual = false;
if ( !mVectorLayer->dataProvider()->defaultValueClause( idx ).isEmpty() )
{
mTableWidget->item( mTableWidget->rowCount() - 1, j )->setData( Qt::DisplayRole, mVectorLayer->dataProvider()->defaultValueClause( idx ) );
setToManual = true;
}
else
{
QVariant v = mVectorLayer->dataProvider()->defaultValue( idx );
if ( v.isValid() )
{
mTableWidget->item( mTableWidget->rowCount() - 1, j )->setData( Qt::DisplayRole, v );
setToManual = true;
}
}
if ( setToManual )
{
QComboBox *currentComboBox = qobject_cast<QComboBox *>( mTableWidget->cellWidget( 0, j ) );
if ( currentComboBox )
{
currentComboBox->blockSignals( true );
currentComboBox->setCurrentIndex( currentComboBox->findData( "manual" ) );
currentComboBox->blockSignals( false );
}
}
}
}
bool QgsDb2Provider::changeAttributeValues( const QgsChangedAttributesMap &attr_map )
{
QgsDebugMsg( "Entering" );
if ( attr_map.isEmpty() )
return true;
if ( mFidColName.isEmpty() )
return false;
for ( QgsChangedAttributesMap::const_iterator it = attr_map.begin(); it != attr_map.end(); ++it )
{
QgsFeatureId fid = it.key();
// skip added features
if ( FID_IS_NEW( fid ) )
continue;
const QgsAttributeMap& attrs = it.value();
if ( attrs.isEmpty() )
continue;
QString statement = QString( "UPDATE %1.%2 SET " ).arg( mSchemaName, mTableName );
bool first = true;
if ( !mDatabase.isOpen() )
{
QString errMsg;
mDatabase = getDatabase( mConnInfo, errMsg );
if ( !errMsg.isEmpty() )
{
return false;
}
}
QSqlQuery query = QSqlQuery( mDatabase );
query.setForwardOnly( true );
for ( QgsAttributeMap::const_iterator it2 = attrs.begin(); it2 != attrs.end(); ++it2 )
{
QgsField fld = mAttributeFields.at( it2.key() );
if ( fld.typeName().endsWith( " identity", Qt::CaseInsensitive ) )
continue; // skip identity field
if ( fld.name().isEmpty() )
continue; // invalid
if ( !first )
statement += ',';
else
first = false;
statement += QString( "%1=?" ).arg( fld.name() );
}
if ( first )
return true; // no fields have been changed
// set attribute filter
statement += QString( " WHERE %1=%2" ).arg( mFidColName, FID_TO_STRING( fid ) );
// use prepared statement to prevent from sql injection
if ( !query.prepare( statement ) )
{
QgsDebugMsg( query.lastError().text() );
return false;
}
QgsDebugMsg( statement );
for ( QgsAttributeMap::const_iterator it2 = attrs.begin(); it2 != attrs.end(); ++it2 )
{
QgsField fld = mAttributeFields.at( it2.key() );
if ( fld.name().isEmpty() )
continue; // invalid
QVariant::Type type = fld.type();
if ( it2->isNull() || !it2->isValid() )
{
// binding null values
if ( type == QVariant::Date || type == QVariant::DateTime )
query.addBindValue( QVariant( QVariant::String ) );
else
query.addBindValue( QVariant( type ) );
}
else if ( type == QVariant::Int )
{
// binding an INTEGER value
query.addBindValue( it2->toInt() );
}
else if ( type == QVariant::Double )
{
// binding a DOUBLE value
query.addBindValue( it2->toDouble() );
}
else if ( type == QVariant::String )
{
// binding a TEXT value
query.addBindValue( it2->toString() );
}
else if ( type == QVariant::DateTime )
{
// binding a DATETIME value
query.addBindValue( it2->toDateTime().toString( Qt::ISODate ) );
}
else if ( type == QVariant::Date )
{
// binding a DATE value
query.addBindValue( it2->toDate().toString( Qt::ISODate ) );
}
else if ( type == QVariant::Time )
{
// binding a TIME value
query.addBindValue( it2->toTime().toString( Qt::ISODate ) );
}
else
{
query.addBindValue( *it2 );
}
}
if ( !query.exec() )
{
QgsDebugMsg( query.lastError().text() );
return false;
}
}
return true;
}
bool QgsMapToolIdentify::identifyVectorLayer( QList<IdentifyResult> *results, QgsVectorLayer *layer, const QgsPoint& point )
{
if ( !layer || !layer->hasGeometryType() )
return false;
if ( layer->hasScaleBasedVisibility() &&
( layer->minimumScale() > mCanvas->mapSettings().scale() ||
layer->maximumScale() <= mCanvas->mapSettings().scale() ) )
{
QgsDebugMsg( "Out of scale limits" );
return false;
}
QApplication::setOverrideCursor( Qt::WaitCursor );
QMap< QString, QString > commonDerivedAttributes;
commonDerivedAttributes.insert( tr( "(clicked coordinate)" ), point.toString() );
int featureCount = 0;
QgsFeatureList featureList;
// toLayerCoordinates will throw an exception for an 'invalid' point.
// For example, if you project a world map onto a globe using EPSG 2163
// and then click somewhere off the globe, an exception will be thrown.
try
{
// create the search rectangle
double searchRadius = searchRadiusMU( mCanvas );
QgsRectangle r;
r.setXMinimum( point.x() - searchRadius );
r.setXMaximum( point.x() + searchRadius );
r.setYMinimum( point.y() - searchRadius );
r.setYMaximum( point.y() + searchRadius );
r = toLayerCoordinates( layer, r );
QgsFeatureIterator fit = layer->getFeatures( QgsFeatureRequest().setFilterRect( r ).setFlags( QgsFeatureRequest::ExactIntersect ) );
QgsFeature f;
while ( fit.nextFeature( f ) )
featureList << QgsFeature( f );
}
catch ( QgsCsException & cse )
{
Q_UNUSED( cse );
// catch exception for 'invalid' point and proceed with no features found
QgsDebugMsg( QString( "Caught CRS exception %1" ).arg( cse.what() ) );
}
QgsFeatureList::iterator f_it = featureList.begin();
bool filter = false;
QgsRenderContext context( QgsRenderContext::fromMapSettings( mCanvas->mapSettings() ) );
context.expressionContext() << QgsExpressionContextUtils::layerScope( layer );
QgsFeatureRendererV2* renderer = layer->rendererV2();
if ( renderer && renderer->capabilities() & QgsFeatureRendererV2::ScaleDependent )
{
// setup scale for scale dependent visibility (rule based)
renderer->startRender( context, layer->fields() );
filter = renderer->capabilities() & QgsFeatureRendererV2::Filter;
}
for ( ; f_it != featureList.end(); ++f_it )
{
QMap< QString, QString > derivedAttributes = commonDerivedAttributes;
QgsFeatureId fid = f_it->id();
context.expressionContext().setFeature( *f_it );
if ( filter && !renderer->willRenderFeature( *f_it, context ) )
continue;
featureCount++;
derivedAttributes.unite( featureDerivedAttributes( &( *f_it ), layer, toLayerCoordinates( layer, point ) ) );
derivedAttributes.insert( tr( "feature id" ), fid < 0 ? tr( "new feature" ) : FID_TO_STRING( fid ) );
results->append( IdentifyResult( qobject_cast<QgsMapLayer *>( layer ), *f_it, derivedAttributes ) );
}
if ( renderer && renderer->capabilities() & QgsFeatureRendererV2::ScaleDependent )
{
renderer->stopRender( context );
}
QgsDebugMsg( "Feature count on identify: " + QString::number( featureCount ) );
QApplication::restoreOverrideCursor();
return featureCount > 0;
}
void QgsMergeAttributesDialog::createTableWidgetContents()
{
//get information about attributes from vector layer
if ( !mVectorLayer )
{
return;
}
//combo box row, attributes titles, feature values and current merge results
mTableWidget->setRowCount( mFeatureList.size() + 2 );
//create combo boxes and insert attribute names
mFields = mVectorLayer->fields();
QSet<int> pkAttrList = mVectorLayer->pkAttributeList().toSet();
int col = 0;
mHiddenAttributes.clear();
for ( int idx = 0; idx < mFields.count(); ++idx )
{
const QgsEditorWidgetSetup setup = QgsEditorWidgetRegistry::instance()->findBest( mVectorLayer, mFields.at( idx ).name() );
if ( setup.type() == "Hidden" || setup.type() == "Immutable" )
{
mHiddenAttributes.insert( idx );
continue;
}
mTableWidget->setColumnCount( col + 1 );
QComboBox *cb = createMergeComboBox( mFields.at( idx ).type() );
if ( pkAttrList.contains( idx ) )
{
cb->setCurrentIndex( cb->findData( "skip" ) );
}
mTableWidget->setCellWidget( 0, col, cb );
QTableWidgetItem *item = new QTableWidgetItem( mFields.at( idx ).name() );
item->setData( FieldIndex, idx );
mTableWidget->setHorizontalHeaderItem( col++, item );
}
//insert the attribute values
QStringList verticalHeaderLabels; //the id column is in the
verticalHeaderLabels << tr( "Id" );
QgsAttributeEditorContext context;
for ( int i = 0; i < mFeatureList.size(); ++i )
{
verticalHeaderLabels << FID_TO_STRING( mFeatureList[i].id() );
QgsAttributes attrs = mFeatureList.at( i ).attributes();
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
int idx = mTableWidget->horizontalHeaderItem( j )->data( FieldIndex ).toInt();
QTableWidgetItem* attributeValItem = new QTableWidgetItem( attrs.at( idx ).toString() );
attributeValItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
mTableWidget->setItem( i + 1, j, attributeValItem );
QgsEditorWidgetWrapper* eww = QgsEditorWidgetRegistry::instance()->create( mVectorLayer, idx, nullptr, mTableWidget, context );
if ( eww )
{
eww->setValue( attrs.at( idx ) );
}
mTableWidget->setCellWidget( i + 1, j, eww->widget() );
}
}
//merge
verticalHeaderLabels << tr( "Merge" );
mTableWidget->setVerticalHeaderLabels( verticalHeaderLabels );
//insert currently merged values
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
refreshMergedValue( i );
}
}
bool QgsMapToolIdentify::identifyVectorLayer( QgsVectorLayer *layer, int x, int y )
{
if ( !layer )
return false;
QMap< QString, QString > attributes, derivedAttributes;
QgsPoint point = mCanvas->getCoordinateTransform()->toMapCoordinates( x, y );
derivedAttributes.insert( tr( "(clicked coordinate)" ), point.toString() );
// load identify radius from settings
QSettings settings;
double identifyValue = settings.value( "/Map/identifyRadius", QGis::DEFAULT_IDENTIFY_RADIUS ).toDouble();
QString ellipsoid = settings.value( "/qgis/measure/ellipsoid", "WGS84" ).toString();
if ( identifyValue <= 0.0 )
identifyValue = QGis::DEFAULT_IDENTIFY_RADIUS;
int featureCount = 0;
QgsFeatureList featureList;
// toLayerCoordinates will throw an exception for an 'invalid' point.
// For example, if you project a world map onto a globe using EPSG 2163
// and then click somewhere off the globe, an exception will be thrown.
try
{
// create the search rectangle
double searchRadius = mCanvas->extent().width() * ( identifyValue / 100.0 );
QgsRectangle r;
r.setXMinimum( point.x() - searchRadius );
r.setXMaximum( point.x() + searchRadius );
r.setYMinimum( point.y() - searchRadius );
r.setYMaximum( point.y() + searchRadius );
r = toLayerCoordinates( layer, r );
layer->select( layer->pendingAllAttributesList(), r, true, true );
QgsFeature f;
while ( layer->nextFeature( f ) )
featureList << QgsFeature( f );
}
catch ( QgsCsException & cse )
{
Q_UNUSED( cse );
// catch exception for 'invalid' point and proceed with no features found
QgsDebugMsg( QString( "Caught CRS exception %1" ).arg( cse.what() ) );
}
// init distance/area calculator
QgsDistanceArea calc;
if ( !featureList.count() == 0 )
{
calc.setProjectionsEnabled( mCanvas->hasCrsTransformEnabled() ); // project?
calc.setEllipsoid( ellipsoid );
calc.setSourceCrs( layer->crs().srsid() );
}
QgsFeatureList::iterator f_it = featureList.begin();
for ( ; f_it != featureList.end(); ++f_it )
{
featureCount++;
QgsFeatureId fid = f_it->id();
QMap<QString, QString> derivedAttributes;
// Calculate derived attributes and insert:
// measure distance or area depending on geometry type
if ( layer->geometryType() == QGis::Line )
{
double dist = calc.measure( f_it->geometry() );
QGis::UnitType myDisplayUnits;
convertMeasurement( calc, dist, myDisplayUnits, false );
QString str = calc.textUnit( dist, 3, myDisplayUnits, false ); // dist and myDisplayUnits are out params
derivedAttributes.insert( tr( "Length" ), str );
if ( f_it->geometry()->wkbType() == QGis::WKBLineString ||
f_it->geometry()->wkbType() == QGis::WKBLineString25D )
{
// Add the start and end points in as derived attributes
str = QLocale::system().toString( f_it->geometry()->asPolyline().first().x(), 'g', 10 );
derivedAttributes.insert( tr( "firstX", "attributes get sorted; translation for lastX should be lexically larger than this one" ), str );
str = QLocale::system().toString( f_it->geometry()->asPolyline().first().y(), 'g', 10 );
derivedAttributes.insert( tr( "firstY" ), str );
str = QLocale::system().toString( f_it->geometry()->asPolyline().last().x(), 'g', 10 );
derivedAttributes.insert( tr( "lastX", "attributes get sorted; translation for firstX should be lexically smaller than this one" ), str );
str = QLocale::system().toString( f_it->geometry()->asPolyline().last().y(), 'g', 10 );
derivedAttributes.insert( tr( "lastY" ), str );
}
}
else if ( layer->geometryType() == QGis::Polygon )
{
double area = calc.measure( f_it->geometry() );
QGis::UnitType myDisplayUnits;
convertMeasurement( calc, area, myDisplayUnits, true ); // area and myDisplayUnits are out params
QString str = calc.textUnit( area, 3, myDisplayUnits, true );
derivedAttributes.insert( tr( "Area" ), str );
}
else if ( layer->geometryType() == QGis::Point &&
( f_it->geometry()->wkbType() == QGis::WKBPoint ||
f_it->geometry()->wkbType() == QGis::WKBPoint25D ) )
{
// Include the x and y coordinates of the point as a derived attribute
QString str;
str = QLocale::system().toString( f_it->geometry()->asPoint().x(), 'g', 10 );
derivedAttributes.insert( "X", str );
str = QLocale::system().toString( f_it->geometry()->asPoint().y(), 'g', 10 );
derivedAttributes.insert( "Y", str );
}
derivedAttributes.insert( tr( "feature id" ), fid < 0 ? tr( "new feature" ) : FID_TO_STRING( fid ) );
results()->addFeature( layer, *f_it, derivedAttributes );
}
QgsDebugMsg( "Feature count on identify: " + QString::number( featureCount ) );
return featureCount > 0;
}
void QgsMergeAttributesDialog::createTableWidgetContents()
{
//get information about attributes from vector layer
if ( !mVectorLayer )
{
return;
}
//combo box row, attributes titles, feature values and current merge results
mTableWidget->setRowCount( mFeatureList.size() + 2 );
//create combo boxes and insert attribute names
const QgsFields& fields = mVectorLayer->pendingFields();
QgsAttributeList pkAttrList = mVectorLayer->pendingPkAttributesList();
int col = 0;
for ( int idx = 0; idx < fields.count(); ++idx )
{
if ( mVectorLayer->editType( idx ) == QgsVectorLayer::Hidden ||
mVectorLayer->editType( idx ) == QgsVectorLayer::Immutable )
continue;
mTableWidget->setColumnCount( col + 1 );
QComboBox *cb = createMergeComboBox( fields[idx].type() );
if ( pkAttrList.contains( idx ) )
{
cb->setCurrentIndex( cb->findText( tr( "Skip attribute" ) ) );
}
mTableWidget->setCellWidget( 0, col, cb );
QTableWidgetItem *item = new QTableWidgetItem( fields[idx].name() );
item->setData( Qt::UserRole, idx );
mTableWidget->setHorizontalHeaderItem( col++, item );
}
//insert the attribute values
QStringList verticalHeaderLabels; //the id column is in the
verticalHeaderLabels << tr( "Id" );
for ( int i = 0; i < mFeatureList.size(); ++i )
{
verticalHeaderLabels << FID_TO_STRING( mFeatureList[i].id() );
const QgsAttributes &attrs = mFeatureList[i].attributes();
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
int idx = mTableWidget->horizontalHeaderItem( j )->data( Qt::UserRole ).toInt();
QTableWidgetItem* attributeValItem = new QTableWidgetItem( attrs[idx].toString() );
attributeValItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
mTableWidget->setItem( i + 1, j, attributeValItem );
mTableWidget->setCellWidget( i + 1, j, QgsAttributeEditor::createAttributeEditor( mTableWidget, NULL, mVectorLayer, idx, attrs[idx] ) );
}
}
//merge
verticalHeaderLabels << tr( "Merge" );
mTableWidget->setVerticalHeaderLabels( verticalHeaderLabels );
//insert currently merged values
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
refreshMergedValue( i );
}
}
bool QgsMapToolIdentify::identifyVectorLayer( QList<IdentifyResult> *results, QgsVectorLayer *layer, QgsPoint point )
{
if ( !layer )
return false;
if ( layer->hasScaleBasedVisibility() &&
( layer->minimumScale() > mCanvas->mapRenderer()->scale() ||
layer->maximumScale() <= mCanvas->mapRenderer()->scale() ) )
{
QgsDebugMsg( "Out of scale limits" );
return false;
}
QMap< QString, QString > derivedAttributes;
derivedAttributes.insert( tr( "(clicked coordinate)" ), point.toString() );
// load identify radius from settings
QSettings settings;
double identifyValue = settings.value( "/Map/identifyRadius", QGis::DEFAULT_IDENTIFY_RADIUS ).toDouble();
if ( identifyValue <= 0.0 )
identifyValue = QGis::DEFAULT_IDENTIFY_RADIUS;
int featureCount = 0;
QgsFeatureList featureList;
// toLayerCoordinates will throw an exception for an 'invalid' point.
// For example, if you project a world map onto a globe using EPSG 2163
// and then click somewhere off the globe, an exception will be thrown.
try
{
// create the search rectangle
double searchRadius = mCanvas->extent().width() * ( identifyValue / 100.0 );
QgsRectangle r;
r.setXMinimum( point.x() - searchRadius );
r.setXMaximum( point.x() + searchRadius );
r.setYMinimum( point.y() - searchRadius );
r.setYMaximum( point.y() + searchRadius );
r = toLayerCoordinates( layer, r );
QgsFeatureIterator fit = layer->getFeatures( QgsFeatureRequest().setFilterRect( r ).setFlags( QgsFeatureRequest::ExactIntersect ) );
QgsFeature f;
while ( fit.nextFeature( f ) )
featureList << QgsFeature( f );
}
catch ( QgsCsException & cse )
{
Q_UNUSED( cse );
// catch exception for 'invalid' point and proceed with no features found
QgsDebugMsg( QString( "Caught CRS exception %1" ).arg( cse.what() ) );
}
QgsFeatureList::iterator f_it = featureList.begin();
bool filter = false;
QgsFeatureRendererV2* renderer = layer->rendererV2();
if ( renderer && renderer->capabilities() & QgsFeatureRendererV2::ScaleDependent )
{
// setup scale for scale dependent visibility (rule based)
renderer->startRender( *( mCanvas->mapRenderer()->rendererContext() ), layer );
filter = renderer->capabilities() & QgsFeatureRendererV2::Filter;
}
for ( ; f_it != featureList.end(); ++f_it )
{
QgsFeatureId fid = f_it->id();
if ( filter && !renderer->willRenderFeature( *f_it ) )
continue;
featureCount++;
derivedAttributes.unite( featureDerivedAttributes( &( *f_it ), layer ) );
derivedAttributes.insert( tr( "feature id" ), fid < 0 ? tr( "new feature" ) : FID_TO_STRING( fid ) );
results->append( IdentifyResult( qobject_cast<QgsMapLayer *>( layer ), *f_it, derivedAttributes ) );
}
if ( renderer && renderer->capabilities() & QgsFeatureRendererV2::ScaleDependent )
{
renderer->stopRender( *( mCanvas->mapRenderer()->rendererContext() ) );
}
QgsDebugMsg( "Feature count on identify: " + QString::number( featureCount ) );
return featureCount > 0;
}