Class: QgsMimeDataUtils¶

Contains utility functions for working with MIME data.

class qgis.core.QgsMimeDataUtils[source]¶

Bases: object

class Uri¶

Bases: object

Constructs invalid URI

QgsMimeDataUtils.Uri(encData: Optional[str]) Constructs URI from encoded data

QgsMimeDataUtils.Uri(layer: Optional[QgsMapLayer]) Constructs a URI corresponding to the specified layer.

Added in version 3.8.

QgsMimeDataUtils.Uri(a0: QgsMimeDataUtils.Uri)

data(self) → str¶

Returns encoded representation of the object

Return type:: str

filePath: str¶

isValid(self) → bool¶

Returns whether the object contains valid data

Return type:: bool

layerId: str¶

layerType: str¶

mapLayer(self) → QgsMapLayer | None¶

Returns the layer from the active project corresponding to this uri (if possible), otherwise returns None.

Unlike vectorLayer(), rasterLayer(), or meshLayer(), this method will not attempt to create a new layer corresponding to the URI.

Added in version 3.8.

Return type:: Optional[QgsMapLayer]

meshLayer(self, error: str | None)¶

Gets mesh layer from uri if possible, otherwise returns None and error is set

Parameters:

owner – set to True if caller becomes owner
error (Optional[str]) -> (Optional[QgsMeshLayer]) – set to error message if cannot get raster

name: str¶

pId: str¶

providerKey: str¶

rasterLayer(self, error: str | None)¶

Gets raster layer from uri if possible, otherwise returns None and error is set

Parameters:

owner – set to True if caller becomes owner
error (Optional[str]) -> (Optional[QgsRasterLayer]) – set to error message if cannot get raster

supportedCrs¶

supportedFormats¶

uri: str¶

vectorLayer(self, error: str | None)¶

Gets vector layer from uri if possible, otherwise returns None and error is set

Parameters:

owner – set to True if caller becomes owner
error (Optional[str]) -> (Optional[QgsVectorLayer]) – set to error message if cannot get vector

wkbType: WkbType¶

static decodeUriList(data: QMimeData | None) → List[QgsMimeDataUtils.Uri][source]¶

Parameters:: data (Optional[QMimeData])
Return type:: List[QgsMimeDataUtils.Uri]

static encodeUriList(layers: Iterable[QgsMimeDataUtils.Uri]) → QMimeData | None[source]¶

Encodes a URI list to a new QMimeData object.

Parameters:: layers (Iterable[QgsMimeDataUtils.Uri])
Return type:: Optional[QMimeData]

static hasOriginatedFromCurrentAppInstance(uri: QgsMimeDataUtils.Uri) → bool[source]¶

Returns True if uri originated from the current QGIS application instance.

Added in version 3.8.

Parameters:: uri (QgsMimeDataUtils.Uri)
Return type:: bool

static isUriList(data: QMimeData | None) → bool[source]¶

Parameters:: data (Optional[QMimeData])
Return type:: bool

static layerTreeNodesToUriList(nodes: Iterable[QgsLayerTreeNode]) → QByteArray[source]¶

Returns encoded URI list from a list of layer tree nodes.

Parameters:: nodes (Iterable[QgsLayerTreeNode])
Return type:: QByteArray