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Python Source format, 3 years 11 months old, and 762 hits.

Paste Description for PyGTK Tab-completion

A hacked-up version of the PyGTK EntryCompletion example which provides shell-like tab completion.

It also includes an adjustment to allow for specialized data sources to be hooked in (eg. SQL databases) if the expected GTK method is undesirable.

PyGTK Tab-completion
Monday, March 3rd, 2008 at 3:05:32am MST 

  1. #!/usr/bin/env python
  2.  
  3. import time
  4. import pygtk
  5. pygtk.require('2.0')
  6. import gtk
  7.  
  8. KEY_TAB = 65289
  9.  
  10. class CompleterEntry(gtk.Entry):
  11.         def __init__(self, completion_getter):
  12.                 gtk.Entry.__init__(self)
  13.  
  14.                 self.completion_getter = completion_getter
  15.  
  16.                 self.completion = gtk.EntryCompletion()
  17.                 self.completion.set_model(None) # EntryCompletion is overzealous.
  18.                 # Only give it a model when we've explicitly asked for completion.
  19.                 self.completion.set_inline_selection(True)
  20.                 self.set_completion(self.completion)
  21.                 self.completion.set_minimum_key_length(1)
  22.                 self.completion.set_text_column(0)
  23.  
  24.                 self.connect('key-press-event', self.entry_keypress_cb)
  25.                 self.completion.connect('match-selected', self.match_cb)
  26.  
  27.         def entry_keypress_cb(self, widget, event):
  28.                 if event.keyval == KEY_TAB:
  29.                         liststore = self.completion_getter(self.get_text())
  30.  
  31.                         if len(liststore) == 1:
  32.                                 self.set_text(liststore[0][0])
  33.                                 self.set_position(-1)
  34.                         else:
  35.                                 self.completion.set_model(liststore)
  36.                                 self.completion.complete()
  37.                                 gtk.main_do_event(gtk.gdk.Event(gtk.gdk.KEY_PRESS))
  38.                         return True
  39.                 else:
  40.                         self.completion.set_model(None)
  41.                         return False
  42.  
  43.         def match_cb(self, completion, model, iter):
  44.                 print model[iter][0], 'was selected'
  45.                 completion.set_model(None)
  46.                 return
  47.  
  48. def get_completion(prefix):
  49.         print "TODO: Build completion list from DB"
  50.         liststore = gtk.ListStore(str)
  51.         for s in ['apple', 'banana', 'cap', 'comb', 'color',
  52.                         'dog', 'doghouse']:
  53.                 if s.startswith(prefix):
  54.                         liststore.append([s])
  55.         return liststore
  56.  
  57. class EntryCompletionExample:
  58.         def __init__(self):
  59.                 window = gtk.Window()
  60.                 window.connect('destroy', lambda w: gtk.main_quit())
  61.                 vbox = gtk.VBox()
  62.                 label = gtk.Label('Type a, b, c or d\nfor completion')
  63.                 vbox.pack_start(label)
  64.  
  65.                 entry = CompleterEntry(get_completion)
  66.  
  67.                 vbox.pack_start(entry)
  68.                 window.add(vbox)
  69.                 window.show_all()
  70.                 entry.connect('activate', self.activate_cb)
  71.                 return
  72.  
  73.         def activate_cb(self, entry):
  74.                 if entry.get_text():
  75.                         print "TODO: Apply the tag"
  76.                         entry.set_text("")
  77.                 else:
  78.                         print "TODO: Go to the next image"
  79.                 return
  80.  
  81. def main():
  82.         gtk.main()
  83.         return
  84.  
  85. if __name__ == "__main__":
  86.         ee = EntryCompletionExample()
  87.         main()

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