orangecanvas.scheme.scheme
Scheme
title_changed(title)
Signal emitted when the title of scheme changes.
description_changed(description)
Signal emitted when the description of scheme changes.
node_added(node)
Signal emitted when a node is added to the scheme.
node_removed(node)
Signal emitted when a node is removed from the scheme.
link_added(link)
Signal emitted when a link is added to the scheme.
link_removed(link)
Signal emitted when a link is removed from the scheme.
annotation_added(annotation)
Signal emitted when a annotation is added to the scheme.
annotation_removed(annotation)
Signal emitted when a annotation is removed from the scheme.
runtime_env_changed(key: str, newvalue: Optional[str], oldvalue: Optional[str])
SchemeCycleError
IncompatibleChannelTypeError
SinkChannelError
DuplicatedLinkError