The extended salome.py Python module provides sg variable, which gives access to some GUI functions.
Note, that this variable is not available if you use salome.py Python module outside of the GUI desktop, i.e. without the embedded Python console (since SWIG library is linked directly to the GUI library).
The example of usage:
# update Object browser contents
salome.sg.updateObjBrowser(True)
# get the active study ID
studyId = salome.sg.getActiveStudyId()
# get the active study name
studyName = salome.sg.getActiveStudyName()
# get the selected objects
selCount = salome.sg.SelectedCount() # the number of selected items
for i in range(selCount):
print salome.sg.getSelected(i) # print the entry ID of i-th selected item
# get the list of IDs of all selected objects
selected = salome.sg.getAllSelected()
# add an object to the selection
salome.sg.AddIObject("0:1:1:1") # "0:1:1:1" is an object ID
# remove an object from the selection (make it unselected)
salome.sg.RemoveIObject("0:1:1:1") # "0:1:1:1" is an object ID
# clear the selection (set all objects unselected)
salome.sg.ClearIObjects()
# display an object in the current view (if possible)
salome.sg.Display("0:1:1:1") # "0:1:1:1" is an object ID
salome.sg.UpdateView() # update view
# erase an object from the current view
salome.sg.Erase("0:1:1:1") # "0:1:1:1" is an object ID
salome.sg.UpdateView() # update view
# display all objects in the current view (if possible)
salome.sg.DisplayAll()
salome.sg.UpdateView() # update view
# erase all objects from the current view
salome.sg.EraseAll()
salome.sg.UpdateView() # update view
# set top, bottom, front, rear, left, right view
salome.sg.ViewTop() # top view
salome.sg.ViewBottom() # bottom view
salome.sg.ViewFront() # front view
salome.sg.ViewTop() # back view
salome.sg.ViewLeft() # left view
salome.sg.ViewRight() # right view
# reset the current view
salome.sg.ResetView()
# get the component symbolic name by its user name
compName = salome.sg.getComponentName("Geometry") # compoName = "GEOM"
# get the component user name by its symbolic name
compName = salome.sg.getComponentUserName("SMESH") # compoName = "Mesh"
# ...