# `TaurusGraphicsItem`

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class TaurusGraphicsItem(name=None, parent=None)

  Base class for all Taurus Graphics Items

  Import from `taurus.qt.qtgui.graphic` as:

      from taurus.qt.qtgui.graphic import TaurusGraphicsItem

  contextMenu()
  fireEvent(evt_src=None, evt_type=None, evt_value=None)

    fires a value changed event to all listeners

  getExtensions()

    Any in ExtensionsList,noPrompt,standAlone,noTooltip,noSelect,ignoreRepaint, shellCommand,className,classParams

  getModelClass(**kwargs)

    Return the class object for the widget. Default behavior is to do a ‘best effort’ to determine which model type corresponds to the current model name. Overwrite as necessary.

    Parameters:

      key (object) – the model key. Defaults to first element of .modelKeys

    Returns:

      The class object corresponding to the type of Taurus model this widget handles or None if no valid class is found.

    Return type:

      class TaurusModel or None

  getName()
  getParentTaurusComponent(**kwargs)

    Deprecated since version 5.1.0: Use _getTaurusParentItem() instead

  isReadOnly()

    Determines if this component is read-only or not in the sense that the user can interact with it. Default implementation returns True.

    Override when necessary.

    Returns:

      whether or not this component is read-only

    Return type:

      bool

  setContextMenu(menu)

    Context Menu must be a list of tuples (ActionName,ActionMethod), empty tuples insert separators between options.

  setModel(model, **kwargs)

    Sets/unsets the model name for the given key. If key is MLIST, a model is set for each name in the model sequence, new model keys are automatically added to the object’s `modelList` attribute and the corresponding models are attached using those keys. The new keys are of the form `(MLIST, i)` where `i` is the index of the corresponding model name in the model sequence.

    Parameters:

      - model (str (or sequence of str if key is MLIST)) – the new model name. If key is MLIST, model is expected to be a sequence of model names.

      - key (object) – the model key. Defaults to first element of .modelKeys

  setName(name)
  updateStyle()

    Method called when the component detects an event that triggers a change in the style.