vcs.maemo.org Git - findit/blob - src/mvc/controllers/debsearch.py

   1 #!/usr/bin/env python
   2 # -*-coding: utf-8 -*-
   3 # vim: sw=4 ts=4 expandtab ai
   4 # pylint: disable-msg=C0301
   5
   6 from gtkmvc import Controller
   7 import gtk
   8
   9 import apt_pkg
  10 from heapq import nlargest
  11
  12 from views.debsearch import DebsearchView
  13 from misc.functions import *
  14
  15
  16 class DebsearchCtrl(Controller):
  17     """Controller of the Debian packages search plugin"""
  18
  19     def __init__(self, model):
  20         Controller.__init__(self, model)
  21
  22     def register_view(self, view):
  23         Controller.register_view(self, view)
  24
  25         # connects the signals:
  26         self.view['start_btn'].connect('released', self.start_btn_released_cb)
  27         self.view['stop_btn'].connect('clicked', self.on_stop_btn_clicked)
  28         self.view['qty_spin'].connect("value_changed", self.on_qty_spin_value_changed)
  29
  30         # sets initial values for the view
  31         self.view.set_quantity_value(self.model.quantity)
  32
  33     # -----------------------------------------------------
  34     #                  user callbacks
  35     # -----------------------------------------------------
  36
  37     def debgetter(self):
  38         apt_pkg.InitConfig()
  39         apt_pkg.InitSystem()
  40         cache = apt_pkg.GetCache()
  41         for pkg in cache.Packages:
  42             # pkg is from a list of packages, sorted by name.
  43             self.view['statusbar'].push(self.view['context_id'], pkg.Name)  ### FIXME
  44             if pkg.CurrentState == apt_pkg.CurStateInstalled:
  45                 pkgsize = [version.InstalledSize for version in pkg.VersionList][0]
  46                 yield pkgsize, pkg.Name
  47
  48     # -----------------------------------------------------
  49     #                    gtk signals
  50     # -----------------------------------------------------
  51
  52     def on_qty_spin_value_changed(self, sb):
  53         """Get packages qty from SpinButton."""
  54         self.model.quantity = sb.get_value_as_int()
  55
  56     def start_btn_released_cb(self, btn):
  57         """Start package search. Button "Go" activate callback."""
  58
  59         self.view['start_btn'].set_sensitive(False)
  60         self.view['stop_btn'].set_sensitive(True)
  61
  62         # Clear list
  63         self.view['liststore'].clear()
  64
  65         # Align columns
  66         self.view['treeview'].columns_autosize()
  67
  68         # Get biggest packages
  69         for psize, packg in nlargest(self.model.quantity, self.debgetter()):
  70             # Fill treemodel: package name, size as string, byte size
  71             self.view['liststore'].append([packg, size_convert(psize), psize])
  72
  73         self.view['start_btn'].set_sensitive(True)
  74         self.view['stop_btn'].set_sensitive(False)
  75
  76     def on_stop_btn_clicked(self, btn):
  77         """Stop search. "Stop" button clicked callback."""
  78         print 'Stop clicked'
  79         self.model.stopit = True
  80
  81     # -----------------------------------------------------
  82     #                observable properties
  83     # -----------------------------------------------------
  84
  85     def property_quantity_value_change(self, model, old, new):
  86         pass
  87         #self.view.set_quantity_value(new)
  88
  89     def property_stopit_value_change(self, model, old, new):
  90         self.view.set_stopit_value(new)