impl_list.py

   1 import gtk
   2 import model
   3 from gui import policy
   4 import writer
   5
   6 def pretty_size(size):
   7         if size is None:
   8                 return '?'
   9         if size < 2048:
  10                 return '%d bytes' % size
  11         size = float(size)
  12         for unit in ('Kb', 'Mb', 'Gb', 'Tb'):
  13                 size /= 1024
  14                 if size < 2048:
  15                         break
  16         return '%.1f %s' % (size, unit)
  17
  18 def popup_menu(bev, values, fn):
  19         menu = gtk.Menu()
  20         for value in values:
  21                 if value is None:
  22                         item = gtk.SeparatorMenuItem()
  23                 else:
  24                         item = gtk.MenuItem(str(value).capitalize())
  25                         item.connect('activate', lambda item, v=value: fn(v))
  26                 item.show()
  27                 menu.append(item)
  28         menu.popup(None, None, None, bev.button, bev.time)
  29
  30 # Columns
  31 ITEM = 0
  32 ARCH = 1
  33 STABILITY = 2
  34 VERSION = 3
  35 CACHED = 4
  36 PATH = 5
  37 SIZE = 6
  38 UNUSABLE = 7
  39
  40 class ImplementationList(gtk.ScrolledWindow):
  41         tree_view = None
  42         model = None
  43
  44         def __init__(self, interface):
  45                 gtk.ScrolledWindow.__init__(self, None, None)
  46                 self.set_shadow_type(gtk.SHADOW_IN)
  47
  48                 self.model = gtk.ListStore(object, str, str, str, bool, str, str, bool)
  49                 self.tree_view = gtk.TreeView(self.model)
  50
  51                 text = gtk.CellRendererText()
  52                 text_strike = gtk.CellRendererText()
  53                 toggle = gtk.CellRendererToggle()
  54
  55                 stability = gtk.TreeViewColumn('Stability', text, text = STABILITY)
  56
  57                 for column in (gtk.TreeViewColumn('Version', text, text = VERSION),
  58                                stability,
  59                                gtk.TreeViewColumn('C', toggle, active = CACHED),
  60                                gtk.TreeViewColumn('Arch', text, text = ARCH),
  61                                gtk.TreeViewColumn('Size', text, text = SIZE),
  62                                gtk.TreeViewColumn('Location', text_strike, text = PATH,
  63                                                         strikethrough = UNUSABLE)):
  64                         self.tree_view.append_column(column)
  65
  66                 self.add(self.tree_view)
  67
  68                 def button_press(tree_view, bev):
  69                         if bev.button not in (1, 3):
  70                                 return False
  71                         pos = tree_view.get_path_at_pos(int(bev.x), int(bev.y))
  72                         if not pos:
  73                                 return False
  74                         path, col, x, y = pos
  75                         if col == stability:
  76                                 impl = self.model[path][ITEM]
  77                                 upstream = impl.upstream_stability or model.testing
  78                                 choices = model.stability_levels.values()
  79                                 choices.sort()
  80                                 choices.reverse()
  81                                 def set(new):
  82                                         if isinstance(new, model.Stability):
  83                                                 impl.user_stability = new
  84                                         else:
  85                                                 impl.user_stability = None
  86                                         writer.save_interface(interface)
  87                                         policy.recalculate()
  88                                 popup_menu(bev, ['Unset (%s)' % upstream, None] + choices,
  89                                         set)
  90                 self.tree_view.connect('button-press-event', button_press)
  91
  92         def get_selection(self):
  93                 return self.tree_view.get_selection()
  94
  95         def set_items(self, items):
  96                 self.model.clear()
  97                 for item in items:
  98                         new = self.model.append()
  99                         self.model[new][ITEM] = item
 100                         self.model[new][VERSION] = item.get_version()
 101                         self.model[new][CACHED] = item.get_cached()
 102                         if item.user_stability:
 103                                 self.model[new][STABILITY] = str(item.user_stability).upper()
 104                         else:
 105                                 self.model[new][STABILITY] = item.upstream_stability or \
 106                                                              model.testing
 107                         self.model[new][ARCH] = item.arch or 'any'
 108                         self.model[new][PATH] = item.path
 109                         self.model[new][SIZE] = pretty_size(item.size)
 110                         self.model[new][UNUSABLE] = policy.is_unusable(item)
 111
 112         def clear(self):
 113                 self.model.clear()
 114