def _add_raster_layer(self, raster_layer, layer_name, save_style=False):
        """Add a raster layer to the folder.

        :param raster_layer: The layer to add.
        :type raster_layer: QgsRasterLayer

        :param layer_name: The name of the layer in the datastore.
        :type layer_name: str

        :param save_style: If we have to save a QML too. Default to False.
        :type save_style: bool

        :returns: A two-tuple. The first element will be True if we could add
            the layer to the datastore. The second element will be the layer
            name which has been used or the error message.
        :rtype: (bool, str)

        .. versionadded:: 4.0
        """
        if not self.is_writable():
            return False, 'The destination is not writable.'

        output = QFileInfo(self.uri.filePath(layer_name + '.tif'))

        source = QFileInfo(raster_layer.source())
        if source.exists() and source.suffix() in ['tiff', 'tif']:
            # If it's tiff file based.
            QFile.copy(source.absoluteFilePath(), output.absoluteFilePath())

        else:
            # If it's not file based.
            renderer = raster_layer.renderer()
            provider = raster_layer.dataProvider()
            crs = raster_layer.crs()

            pipe = QgsRasterPipe()
            pipe.set(provider.clone())
            pipe.set(renderer.clone())

            file_writer = QgsRasterFileWriter(output.absoluteFilePath())
            file_writer.Mode(1)

            file_writer.writeRaster(
                pipe,
                provider.xSize(),
                provider.ySize(),
                provider.extent(),
                crs)

            del file_writer

        if save_style:
            style_path = QFileInfo(self.uri.filePath(layer_name + '.qml'))
            raster_layer.saveNamedStyle(style_path.absoluteFilePath())

        assert output.exists()
        return True, output.baseName()
def _add_raster_layer ( self , raster_layer , layer_name , save_style = False ) : if not self . is_writable ( ) : return False , 'The destination is not writable.' output = QFileInfo ( self . uri . filePath ( layer_name + '.tif' ) ) source = QFileInfo ( raster_layer . source ( ) ) if source . exists ( ) and source . suffix ( ) in [ 'tiff' , 'tif' ] : QFile . copy ( source . absoluteFilePath ( ) , output . absoluteFilePath ( ) ) else : renderer = raster_layer . renderer ( ) provider = raster_layer . dataProvider ( ) crs = raster_layer . crs ( ) pipe = QgsRasterPipe ( ) pipe . set ( provider . clone ( ) ) pipe . set ( renderer . clone ( ) ) file_writer = QgsRasterFileWriter ( output . absoluteFilePath ( ) ) file_writer . Mode ( 1 ) file_writer . writeRaster ( pipe , provider . xSize ( ) , provider . ySize ( ) , provider . extent ( ) , crs ) del file_writer if save_style : style_path = QFileInfo ( self . uri . filePath ( layer_name + '.qml' ) ) raster_layer . saveNamedStyle ( style_path . absoluteFilePath ( ) ) assert output . exists ( ) return True , output . baseName ( )
Add a raster layer to the folder.

        :param raster_layer: The layer to add.
        :type raster_layer: QgsRasterLayer

        :param layer_name: The name of the layer in the datastore.
        :type layer_name: str

        :param save_style: If we have to save a QML too. Default to False.
        :type save_style: bool

        :returns: A two-tuple. The first element will be True if we could add
            the layer to the datastore. The second element will be the layer
            name which has been used or the error message.
        :rtype: (bool, str)

        .. versionadded:: 4.0