trunk/apertium-tools/apertium-tolk/glade.py

   1 import gtk.glade
   2 from ConfigParser import DuplicateSectionError, NoSectionError
   3 from widget_state import dump_state, load_state
   4
   5 class GladeXML(gtk.glade.XML):
   6     def get_widgets(self):
   7         """Return an iterator which produces (widget_name, widget) pairs.
   8
   9         glade.XML.get_widget_prefix returns all widgets with names starting with the
  10         supplied string; so if we call get_widget_prefix(''), we get all the widgets
  11         in the loaded glade file!
  12         """
  13         return ((gtk.glade.get_widget_name(w), w) for w in  self.get_widget_prefix(''))
  14
  15
  16     def dump_gtk_state(self, cfg):
  17         """Enumerate the widgets in the loaded glade file.
  18
  19         For each widget, create a section in the configuration file represented by 'cfg'.
  20         Then, write the widget state using the dictionary produced by dump_state to the
  21         widget's section in the 'cfg' file.
  22         """
  23         for widget_name, widget in self.get_widgets():
  24             try:
  25                 cfg.add_section(widget_name)
  26             except DuplicateSectionError, e:
  27                 pass
  28
  29             for key, val in dump_state(widget).iteritems():
  30                 cfg.set(widget_name, key, str(val))
  31
  32
  33     def load_gtk_state(self, cfg):
  34         for widget_name, widget in self.get_widgets():
  35             try:
  36                 load_state(widget, dict(cfg.items(widget_name)))
  37             except KeyError, e:
  38                 pass
  39             except NoSectionError, e:
  40                 pass
  41
  42
  43     def connect(self, context):
  44         """Enumerate the methods in the object 'context''s class. For each method, create a
  45         (name, function) pair, with the function name and a bound method (binding is done to
  46         the object 'context' via getattr(context, name)).
  47
  48         Now, create a dictionary out of these pairs. Fincally pass the dictionary to
  49         signal_autoconnect, which will bind the signals defined in the glade file to our
  50         methods."""
  51         handlers = dict((name, getattr(context, name)) for name in context.__class__.__dict__)
  52         self.signal_autoconnect(handlers)