iface_browser.py

   1 import gtk
   2
   3 from model import Interface
   4 import properties
   5 import reader
   6 from gui import policy
   7
   8 class InterfaceBrowser(gtk.ScrolledWindow):
   9         model = None
  10         root = None
  11         edit_properties = None
  12
  13         INTERFACE = 0
  14         INTERFACE_NAME = 1
  15         VERSION = 2
  16         SUMMARY = 3
  17
  18         def __init__(self):
  19                 self.edit_properties = gtk.Action('edit_properties',
  20                           'Interface Properties...',
  21                           'Set which implementation of this interface to use.',
  22                           gtk.STOCK_PROPERTIES)
  23                 self.edit_properties.set_property('sensitive', False)
  24
  25                 gtk.ScrolledWindow.__init__(self)
  26                 self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
  27                 self.set_shadow_type(gtk.SHADOW_IN)
  28
  29                 self.model = gtk.TreeStore(object, str, str, str)
  30                 self.tree_view = tree_view = gtk.TreeView(self.model)
  31
  32                 text = gtk.CellRendererText()
  33
  34                 column = gtk.TreeViewColumn(_('Interface'), text,
  35                                           text = InterfaceBrowser.INTERFACE_NAME)
  36                 tree_view.append_column(column)
  37
  38                 column = gtk.TreeViewColumn(_('Version'), text,
  39                                           text = InterfaceBrowser.VERSION)
  40                 tree_view.append_column(column)
  41
  42                 column = gtk.TreeViewColumn(_('Description'), text,
  43                                           text = InterfaceBrowser.SUMMARY)
  44                 tree_view.append_column(column)
  45
  46                 self.add(tree_view)
  47                 tree_view.show()
  48
  49                 tree_view.set_enable_search(True)
  50
  51                 selection = tree_view.get_selection()
  52
  53                 def sel_changed(sel):
  54                         store, iter = sel.get_selected()
  55                         self.edit_properties.set_property('sensitive', iter != None)
  56                 selection.connect('changed', sel_changed)
  57
  58                 def button_press(tree_view, bev):
  59                         if bev.button != 1 or bev.type != gtk.gdk._2BUTTON_PRESS:
  60                                 return False
  61                         pos = tree_view.get_path_at_pos(int(bev.x), int(bev.y))
  62                         if not pos:
  63                                 return False
  64                         path, col, x, y = pos
  65                         properties.edit(self.model[path][InterfaceBrowser.INTERFACE])
  66                 tree_view.connect('button-press-event', button_press)
  67
  68                 def edit_selected(action):
  69                         store, iter = selection.get_selected()
  70                         assert iter
  71                         properties.edit(self.model[iter][InterfaceBrowser.INTERFACE])
  72                 self.edit_properties.connect('activate', edit_selected)
  73
  74                 self.connect('destroy', lambda s: policy.watchers.remove(self.build_tree))
  75                 policy.watchers.append(self.build_tree)
  76
  77         def set_root(self, root):
  78                 assert isinstance(root, Interface)
  79                 self.root = root
  80                 policy.recalculate()    # Calls build_tree
  81
  82         def build_tree(self):
  83                 self.model.clear()
  84                 parent = None
  85                 def add_node(parent, iface):
  86                         iter = self.model.append(parent)
  87                         self.model[iter][InterfaceBrowser.INTERFACE] = iface
  88                         self.model[iter][InterfaceBrowser.INTERFACE_NAME] = iface.get_name()
  89                         self.model[iter][InterfaceBrowser.SUMMARY] = iface.summary
  90
  91                         impl = policy.implementation.get(iface, None)
  92                         if impl:
  93                                 self.model[iter][InterfaceBrowser.VERSION] = impl.get_version()
  94                                 for child in impl.dependencies.values():
  95                                         add_node(iter, policy.get_interface(child.interface))
  96                         else:
  97                                 self.model[iter][InterfaceBrowser.VERSION] = '(choose)'
  98                 add_node(None, self.root)
  99                 self.tree_view.expand_all()