Made TrackerIcons a component to prevent trying to get an icon multiple

times
Fixed showing the wrong tracker icon in the TorrentView when the icon 
could not be retrieved from the tracker

deluge/ui/gtkui/filtertreeview.py

@@ -30,7 +30,6 @@ import pkg_resources
 
 import deluge.component as component
 import deluge.common
-from deluge.ui.tracker_icons import TrackerIcons
 from deluge.log import LOG as log
 from deluge.ui.client import client
 from deluge.configmanager import ConfigManager
@@ -71,7 +70,7 @@ class FilterTreeView(component.Component):
         self.scrolled = glade.get_widget("scrolledwindow_sidebar")
         self.sidebar = component.get("SideBar")
         self.config = ConfigManager("gtkui.conf")
-        self.tracker_icons = TrackerIcons()
+        self.tracker_icons = component.get("TrackerIcons")
 
         self.label_view = gtk.TreeView()
         self.sidebar.add_tab(self.label_view, "filters", _("Filters"))

deluge/ui/gtkui/gtkui.py

@@ -50,6 +50,7 @@ from statusbar import StatusBar
 from connectionmanager import ConnectionManager
 from pluginmanager import PluginManager
 from ipcinterface import IPCInterface
+from deluge.ui.tracker_icons import TrackerIcons
 
 from queuedtorrents import QueuedTorrents
 from addtorrentdialog import AddTorrentDialog
@@ -166,6 +167,7 @@ class GtkUI:
         # We make sure that the UI components start once we get a core URI
         client.set_disconnect_callback(self.__on_disconnect)
 
+        self.trackericons = TrackerIcons()
         # Initialize various components of the gtkui
         self.mainwindow = MainWindow()
         self.menubar = MenuBar()

deluge/ui/gtkui/torrentview.py

@@ -75,14 +75,18 @@ def cell_data_statusicon(column, cell, model, row, data):
         pass
 
 def cell_data_trackericon(column, cell, model, row, data):
-    icon_path = TrackerIcons().get(model[row][data])
+    icon_path = component.get("TrackerIcons").get(model[row][data])
     if icon_path:
         try:
             icon = gtk.gdk.pixbuf_new_from_file_at_size(icon_path, 16, 16)
         except Exception, e:
             pass
-        if cell.get_property("pixbuf") != icon:
+    else:
-            cell.set_property("pixbuf", icon)
+        icon = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, 16, 16)
+        icon.fill(0x00000000)
+
+    if cell.get_property("pixbuf") != icon:
+        cell.set_property("pixbuf", icon)
 
 
 def cell_data_progress(column, cell, model, row, data):

deluge/ui/tracker_icons.py

@@ -31,6 +31,7 @@ from deluge.log import LOG as log
 from deluge.common import get_pixmap
 import os
 import deluge.configmanager
+import deluge.component as component
 
 #some servers don't have their favicon at the expected location
 RENAMES = {
@@ -60,8 +61,9 @@ def fetch_url(url, valid_subtypes=None):
 
     return data
 
-class TrackerIcons(object):
+class TrackerIcons(component.Component):
     def __init__(self):
+        component.Component.__init__(self, "TrackerIcons")
         #set image cache dir
         self.image_dir = os.path.join(deluge.configmanager.get_config_dir(), "icons")
         if not os.path.exists(self.image_dir):
@@ -140,10 +142,11 @@ class TrackerIcons(object):
             f = open(filename,"wb")
             f.write(icon_data)
             f.close()
-            self.images[tracker_host] = filename
         else:
             filename = None
 
+        self.images[tracker_host] = filename
+
         if callback:
             gobject.idle_add(callback, filename)