bool QgsGeometryCheckerResultTab::exportErrorsDo( const QString& file )
{
QList< QPair<QString, QString> > attributes;
attributes.append( qMakePair( QString( "FeatureID" ), QString( "String;10;" ) ) );
attributes.append( qMakePair( QString( "ErrorDesc" ), QString( "String;80;" ) ) );
QLibrary ogrLib( QgsProviderRegistry::instance()->library( "ogr" ) );
if ( !ogrLib.load() )
{
return false;
}
typedef bool ( *createEmptyDataSourceProc )( const QString&, const QString&, const QString&, QGis::WkbType, const QList< QPair<QString, QString> >&, const QgsCoordinateReferenceSystem * );
createEmptyDataSourceProc createEmptyDataSource = ( createEmptyDataSourceProc ) cast_to_fptr( ogrLib.resolve( "createEmptyDataSource" ) );
if ( !createEmptyDataSource )
{
return false;
}
if ( !createEmptyDataSource( file, "ESRI Shapefile", mFeaturePool->getLayer()->dataProvider()->encoding(), QGis::WKBPoint, attributes, &mFeaturePool->getLayer()->crs() ) )
{
return false;
}
QgsVectorLayer* layer = new QgsVectorLayer( file, QFileInfo( file ).baseName(), "ogr" );
if ( !layer->isValid() )
{
delete layer;
return false;
}
int fieldFeatureId = layer->fieldNameIndex( "FeatureID" );
int fieldErrDesc = layer->fieldNameIndex( "ErrorDesc" );
for ( int row = 0, nRows = ui.tableWidgetErrors->rowCount(); row < nRows; ++row )
{
QgsGeometryCheckError* error = ui.tableWidgetErrors->item( row, 0 )->data( Qt::UserRole ).value<QgsGeometryCheckError*>();
QgsFeature f( layer->pendingFields() );
f.setAttribute( fieldFeatureId, error->featureId() );
f.setAttribute( fieldErrDesc, error->description() );
f.setGeometry( new QgsGeometry( error->location().clone() ) );
layer->dataProvider()->addFeatures( QgsFeatureList() << f );
}
// Remove existing layer with same uri
QStringList toRemove;
foreach ( QgsMapLayer* maplayer, QgsMapLayerRegistry::instance()->mapLayers() )
{
if ( dynamic_cast<QgsVectorLayer*>( maplayer ) &&
static_cast<QgsVectorLayer*>( maplayer )->dataProvider()->dataSourceUri() == layer->dataProvider()->dataSourceUri() )
{
toRemove.append( maplayer->id() );
}
}
if ( !toRemove.isEmpty() )
{
QgsMapLayerRegistry::instance()->removeMapLayers( toRemove );
}
QgsMapLayerRegistry::instance()->addMapLayers( QList<QgsMapLayer*>() << layer );
return true;
}
// this is static
QString QgsNewVectorLayerDialog::runAndCreateLayer( QWidget* parent, QString* pEnc )
{
QgsNewVectorLayerDialog geomDialog( parent );
if ( geomDialog.exec() == QDialog::Rejected )
{
return QLatin1String( "" );
}
QgsWkbTypes::Type geometrytype = geomDialog.selectedType();
QString fileformat = geomDialog.selectedFileFormat();
QString enc = geomDialog.selectedFileEncoding();
int crsId = geomDialog.selectedCrsId();
QgsDebugMsg( QString( "New file format will be: %1" ).arg( fileformat ) );
QList< QPair<QString, QString> > attributes;
geomDialog.attributes( attributes );
QSettings settings;
QString lastUsedDir = settings.value( QStringLiteral( "/UI/lastVectorFileFilterDir" ), QDir::homePath() ).toString();
QString filterString = QgsVectorFileWriter::filterForDriver( fileformat );
QString fileName = QFileDialog::getSaveFileName( nullptr, tr( "Save layer as..." ), lastUsedDir, filterString );
if ( fileName.isNull() )
{
return QLatin1String( "" );
}
if ( fileformat == QLatin1String( "ESRI Shapefile" ) && !fileName.endsWith( QLatin1String( ".shp" ), Qt::CaseInsensitive ) )
fileName += QLatin1String( ".shp" );
settings.setValue( QStringLiteral( "/UI/lastVectorFileFilterDir" ), QFileInfo( fileName ).absolutePath() );
settings.setValue( QStringLiteral( "/UI/encoding" ), enc );
//try to create the new layer with OGRProvider instead of QgsVectorFileWriter
QgsProviderRegistry * pReg = QgsProviderRegistry::instance();
QString ogrlib = pReg->library( QStringLiteral( "ogr" ) );
// load the data provider
QLibrary* myLib = new QLibrary( ogrlib );
bool loaded = myLib->load();
if ( loaded )
{
QgsDebugMsg( "ogr provider loaded" );
typedef bool ( *createEmptyDataSourceProc )( const QString&, const QString&, const QString&, QgsWkbTypes::Type,
const QList< QPair<QString, QString> >&, const QgsCoordinateReferenceSystem & );
createEmptyDataSourceProc createEmptyDataSource = ( createEmptyDataSourceProc ) cast_to_fptr( myLib->resolve( "createEmptyDataSource" ) );
if ( createEmptyDataSource )
{
if ( geometrytype != QgsWkbTypes::Unknown )
{
QgsCoordinateReferenceSystem srs = QgsCoordinateReferenceSystem::fromSrsId( crsId );
if ( !createEmptyDataSource( fileName, fileformat, enc, geometrytype, attributes, srs ) )
{
return QString::null;
}
}
else
{
QgsDebugMsg( "geometry type not recognised" );
return QString::null;
}
}
else
{
QgsDebugMsg( "Resolving newEmptyDataSource(...) failed" );
return QString::null;
}
}
if ( pEnc )
*pEnc = enc;
return fileName;
}
bool QgsGeometryCheckerResultTab::exportErrorsDo( const QString &file )
{
QList< QPair<QString, QString> > attributes;
attributes.append( qMakePair( QStringLiteral( "Layer" ), QStringLiteral( "String;30;" ) ) );
attributes.append( qMakePair( QStringLiteral( "FeatureID" ), QStringLiteral( "String;10;" ) ) );
attributes.append( qMakePair( QStringLiteral( "ErrorDesc" ), QStringLiteral( "String;80;" ) ) );
QFileInfo fi( file );
QString ext = fi.suffix();
QString driver = QgsVectorFileWriter::driverForExtension( ext );
QLibrary ogrLib( QgsProviderRegistry::instance()->library( QStringLiteral( "ogr" ) ) );
if ( !ogrLib.load() )
{
return false;
}
typedef bool ( *createEmptyDataSourceProc )( const QString &, const QString &, const QString &, QgsWkbTypes::Type, const QList< QPair<QString, QString> > &, const QgsCoordinateReferenceSystem & );
createEmptyDataSourceProc createEmptyDataSource = ( createEmptyDataSourceProc ) cast_to_fptr( ogrLib.resolve( "createEmptyDataSource" ) );
if ( !createEmptyDataSource )
{
return false;
}
if ( !createEmptyDataSource( file, driver, "UTF-8", QgsWkbTypes::Point, attributes, QgsProject::instance()->crs() ) )
{
return false;
}
QgsVectorLayer *layer = new QgsVectorLayer( file, QFileInfo( file ).baseName(), QStringLiteral( "ogr" ) );
if ( !layer->isValid() )
{
delete layer;
return false;
}
int fieldLayer = layer->fields().lookupField( QStringLiteral( "Layer" ) );
int fieldFeatureId = layer->fields().lookupField( QStringLiteral( "FeatureID" ) );
int fieldErrDesc = layer->fields().lookupField( QStringLiteral( "ErrorDesc" ) );
for ( int row = 0, nRows = ui.tableWidgetErrors->rowCount(); row < nRows; ++row )
{
QgsGeometryCheckError *error = ui.tableWidgetErrors->item( row, 0 )->data( Qt::UserRole ).value<QgsGeometryCheckError *>();
QgsVectorLayer *srcLayer = mChecker->featurePools()[error->layerId()]->layer();
QgsFeature f( layer->fields() );
f.setAttribute( fieldLayer, srcLayer->name() );
f.setAttribute( fieldFeatureId, error->featureId() );
f.setAttribute( fieldErrDesc, error->description() );
QgsGeometry geom( new QgsPoint( error->location() ) );
f.setGeometry( geom );
layer->dataProvider()->addFeatures( QgsFeatureList() << f );
}
// Remove existing layer with same uri
QStringList toRemove;
for ( QgsMapLayer *maplayer : QgsProject::instance()->mapLayers() )
{
if ( dynamic_cast<QgsVectorLayer *>( maplayer ) &&
static_cast<QgsVectorLayer *>( maplayer )->dataProvider()->dataSourceUri() == layer->dataProvider()->dataSourceUri() )
{
toRemove.append( maplayer->id() );
}
}
if ( !toRemove.isEmpty() )
{
QgsProject::instance()->removeMapLayers( toRemove );
}
QgsProject::instance()->addMapLayers( QList<QgsMapLayer *>() << layer );
return true;
}
