Hdf5TreeModel class

class Hdf5TreeModel(parent=None, ownFiles=True)

Bases: QAbstractItemModel

Tree model storing a list of h5py.File like objects.

The main column display the h5py.File list and there hierarchy. Other columns display information on node hierarchy.

H5PY_ITEM_ROLE = 256

Role to reach h5py item from an item index

H5PY_OBJECT_ROLE = 257

Role to reach h5py object from an item index

USER_ROLE = 258

Start of range of available user role for derivative models

NAME_COLUMN = 0

Column id containing HDF5 node names

TYPE_COLUMN = 1

Column id containing HDF5 dataset types

SHAPE_COLUMN = 2

Column id containing HDF5 dataset shapes

VALUE_COLUMN = 3

Column id containing HDF5 dataset values

DESCRIPTION_COLUMN = 4

Column id containing HDF5 node description/title/message

NODE_COLUMN = 5

Column id containing HDF5 node type

LINK_COLUMN = 6

Column id containing HDF5 link type

COLUMN_IDS = [0, 1, 2, 3, 4, 5, 6]

List of logical columns available

sigH5pyObjectLoaded

Emitted when a new root item was loaded and inserted to the model.

sigH5pyObjectRemoved

Emitted when a root item is removed from the model.

sigH5pyObjectSynchronized

Emitted when an item was synchronized.

fileDropEnabled

Property to enable/disable file dropping in the model.

datasetDragEnabled

Property to enable/disable drag of datasets.

fileMoveEnabled

Property to enable/disable drag-and-drop of files to change the ordering in the model.

supportedDropActions(self) → Qt.DropActions

mimeTypes(self) → List[str]

mimeData(indexes)

Returns an object that contains serialized items of data corresponding to the list of indexes specified.

Parameters

indexes (List[qt.QModelIndex]) – List of indexes

Return type

qt.QMimeData

flags(self, QModelIndex) → Qt.ItemFlags

dropMimeData(self, QMimeData, Qt.DropAction, int, int, QModelIndex) → bool

headerData(self, int, Qt.Orientation, role: int = Qt.DisplayRole) → Any

Hdf5TreeModel.moveRow(self, QModelIndex, int, QModelIndex, int) -> bool

Hdf5TreeModel.moveRows(self, QModelIndex, int, int, QModelIndex, int) -> bool

Hdf5TreeModel.index(self, int, int, parent: QModelIndex = QModelIndex()) -> QModelIndex

data(self, QModelIndex, role: int = Qt.DisplayRole) → Any

columnCount(self, parent: QModelIndex = QModelIndex()) → int

hasChildren(self, parent: QModelIndex = QModelIndex()) → bool

rowCount(self, parent: QModelIndex = QModelIndex()) → int

parent(self, QModelIndex) → QModelIndex

parent(self) → QObject

synchronizeIndex(index)

Synchronize a file a given its index.

Basically close it and load it again.

Parameters

index (qt.QModelIndex) – Index of the item to update

synchronizeH5pyObject(h5pyObject)

Synchronize a h5py object in all the tree.

Basically close it and load it again.

Parameters

h5pyObject (h5py.File) – A h5py.File object.

removeIndex(index)

Remove an item from the model using its index.

Parameters

index (qt.QModelIndex) – Index of the item to remove

removeH5pyObject(h5pyObject)

Remove an item from the model using the holding h5py object. It can remove more than one item.

Parameters

h5pyObject (h5py.File) – A h5py.File object.

insertH5pyObject(h5pyObject, text=None, row=-1, filename=None)

Append an HDF5 object from h5py to the tree.

Parameters

• h5pyObject – File handle/descriptor for a h5py.File or any other class of h5py file structure.

• text (Optional[str]) –

• row (int) –

• filename (Optional[str]) –

insertFile(filename, row=-1)

Load a HDF5 file into the data model.

Parameters

filename – file path.

clear()

Remove all the content of the model

indexFromH5Object(h5Object)

Returns a model index from an h5py-like object.

Parameters

h5Object (object) – An h5py-like object

Return type

qt.QModelIndex