[Qtlab-users] question about using SharedGObject to interact with GUI

[Chunqing D. <cd...@uw...>]

Dear Qtlab users,

We are trying to build a GUI on top of Qtlab for parameter management and performing multi-dimensional sweeps in experiments. I have noticed the qtlab gui interact with the shell through SharedGObject.So I wrote a simple class for testing as below:

from lib.network.object_sharer import SharedGObject

class Test_share_class(SharedGObject):

    att = 1

    def __init__(self, **kwargs):
        SharedGObject.__init__(self, 'test_share')

    def do_sth_to_let_GUI_know(self):
        print "In Qtlab shell"

    def func_called_by_GUI(self):
        print "Called by GUI"
        self.att = self.att + 1

In the GUI client site, I have the following code:
import gtk
from gettext import gettext as _L
from lib.network.object_sharer import helper

class SQD_GUI_START(gtk.Button):

    def __init__(self):
        gtk.Button.__init__(self, _L('SQD GUI'))

        self.set_sensitive(True)
        self.connect('clicked', self._call_func)


    def _call_func(self, sender):
        '''
        behavior when clicking the button
        '''
        ob = helper.find_object('test_share')
        ob.func_called_by_GUI()

Using this, I can call the function "func_called_by_GUI" from the GUI by clicking a button.

Additionally, I would like to make the GUI acknowledge whenever "do_sth_to_let_GUI_know" is called using the qtlab shell. Would some of you give me some advice on how to implement this functionality? I will really appreciate it.

Regards,
Chunqing Deng