-# Copyright (C) 2010-2014 CEA/DEN, EDF R&D
+# Copyright (C) 2010-2015 CEA/DEN, EDF R&D
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
#
# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#
+# Author: Adrien Bruneton (CEA)
r""" This module is a direct forward to the initial 'simple' module of ParaView.
On top of that it also establishes a connection to a valid PVServer whose address
-is provided by the PARAVIS engine.
+is provided by the PVSERVER engine.
"""
-from paraview.simple import *
-import paravis ## Triggers the "FindOrLoadCompo(PARAVIS)"
+__DEBUG = 0 # increase if you want more verbosity
+
+def __my_log(msg):
+ if __DEBUG:
+ print "[PARAVIS] %s" % msg
+
+def __getFromGUI():
+ """ Identify if we are running inside SALOME's embedded interpreter.
+ @return a value strictly greater than 0 if we are in SALOME's embedded interpreter
+ @return 2 if we are in Salome embedded Python console.
+ """
+ import salome_iapp
+ ret = 0
+ if salome_iapp.IN_SALOME_GUI:
+ ret += 1
+ try:
+ if __IN_SALOME_GUI_CONSOLE: # only defined if we are in SALOME's embedded console (not only GUI)
+ ret += 1
+ except NameError:
+ pass
+ return ret
+
+def ShowParaviewView():
+ """
+ If the import is made from SALOME embedded console, the ParaView application needs to
+ be instanciated to avoid a future crash.
+ """
+ if __getFromGUI():
+ __my_log("Initializing ParaView main elements, please be patient ...")
+ import SalomePyQt
+ sgPyQt = SalomePyQt.SalomePyQt()
+ viewIds = sgPyQt.findViews("ParaView")
+ if len(viewIds):
+ sgPyQt.setViewVisible(viewIds[0], True)
+ sgPyQt.activateView(viewIds[0])
+ else:
+ sgPyQt.createView("ParaView")
+ # Now let the GUI main loop process the initialization event posted above
+ sgPyQt.processEvents()
+ __my_log("ParaView initialized.")
+
+## The below has to called BEFORE importing paraview!!! This is crazy, but it has to be.
+ShowParaviewView()
+
+import paraview
+import pvserver
+from paraview import simple
def SalomeConnectToPVServer():
- print "Connecting to PVServer ..."
- try:
- server_url = paravis.StartOrRetrievePVServerURL()
- Connect(server_url)
- except Exception as e:
- print "*******************************************"
- print "*******************************************"
- print "Could not connect to a running PVServer!"
- print "*******************************************"
- print "*******************************************"
- raise e
- print "Connected!"
-
-# Automatically connect to the right PVServer:
-SalomeConnectToPVServer()
+ """
+ Automatically connect to the right PVServer when not ("inside SALOME GUI" and "already connected").
+ """
+ __my_log("Connecting to PVServer ...")
+ server_url = ""
+ try:
+ isGUIConnected = pvserver.myPVServerService.GetGUIConnected()
+ if isGUIConnected and __getFromGUI():
+ __my_log("Importing pvsimple from GUI and already connected. Won't reconnect.")
+ return
+ server_url = pvserver.myPVServerService.FindOrStartPVServer(0)
+ # Extract host and port from URL:
+ a = server_url.split(':')
+ b = a[1].split('//')
+ host, port = b[-1], int(a[-1])
+ simple.Connect(host, port)
+ __my_log("Connected to %s!" % server_url)
+ if __getFromGUI():
+ pvserver.myPVServerService.SetGUIConnected(True)
+ except Exception as e:
+ __my_log("*******************************************")
+ __my_log("** Could not connect to a running PVServer!")
+ __my_log("*******************************************")
+ raise e
+ pass
+
+if __getFromGUI() < 1:
+ # Only if not in GUI (otherwise the createView will do the connection)
+ SalomeConnectToPVServer()
+del SalomeConnectToPVServer
+
+# Forward namespace of simple into current pvsimple:
+for name in dir(simple):
+ if not name.startswith("__"):
+ globals()[name] = getattr(simple, name)
+del simple
+
