use show signal to perform initial gui update

[debian/gnuradio] / grc / gui / Param.py

diff --git a/grc/gui/Param.py b/grc/gui/Param.py
index 7fabb667131c3fe70504b51214e348207778da49..4464a57ab77505f006b06a3731d1120248d891bb 100644 (file)
--- a/grc/gui/Param.py
+++ b/grc/gui/Param.py
@@ -35,9 +35,11 @@ class InputParam(gtk.HBox):
                self.pack_start(self.label, False)
                self.set_markup = lambda m: self.label.set_markup(m)
                self.tp = None
+               #connect events
+               self.connect('show', self._update_gui)
        def set_color(self, color): pass
 
-       def update(self):
+       def _update_gui(self, *args):
                """
                Set the markup, color, tooltip, show/hide.
                """
@@ -65,12 +67,10 @@ class InputParam(gtk.HBox):
                #set the new value
                self.param.set_value(self.get_text())
                #call the callback
-               if self._callback: self._callback()
-               else:
-                       #no callback mode (used in supporting gui scripts)
-                       #internally re-validate the param and update the gui
-                       self.param.validate()
-                       self.update()
+               if self._callback: self._callback(*args)
+               else: self.param.validate()
+               #gui update
+               self._update_gui()
 
 class EntryParam(InputParam):
        """Provide an entry box for strings and numbers."""