[GTK] Fix unicode warnings on Python 2

GTK3 on Python 2 returns bytes so decode before comparisons.

deluge/ui/gtk3/filtertreeview.py

@@ -20,7 +20,7 @@ from gi.repository.GdkPixbuf import Pixbuf
 from gi.repository.Pango import EllipsizeMode
 
 import deluge.component as component
-from deluge.common import TORRENT_STATE, resource_filename
+from deluge.common import TORRENT_STATE, decode_bytes, resource_filename
 from deluge.configmanager import ConfigManager
 from deluge.ui.client import client
 
@@ -224,7 +224,7 @@ class FilterTreeView(component.Component):
 
     def render_cell_data(self, column, cell, model, row, data):
         cat = model.get_value(row, 0)
-        label = model.get_value(row, 2)
+        label = decode_bytes(model.get_value(row, 2))
         count = model.get_value(row, 3)
 
         # Supress Warning: g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed

deluge/ui/gtk3/listview.py

@@ -266,7 +266,8 @@ class ListView(object):
         sort = None
         if self.model_filter:
             sort_id, order = self.model_filter.get_sort_column_id()
-            if self.get_column_name(sort_id) == column.get_title():
+            col_title = decode_bytes(column.get_title())
+            if self.get_column_name(sort_id) == col_title:
                 sort = sort_id
 
         return ListViewColumnState(
@@ -582,7 +583,7 @@ class ListView(object):
         column_in_state = False
         if self.state is not None:
             for column_state in self.state:
-                if header == column_state.name:
+                if header == decode_bytes(column_state.name):
                     # We found a loaded state
                     column_in_state = True
                     if column_state.width > 0:

deluge/ui/gtk3/preferences.py

@@ -109,7 +109,8 @@ class Preferences(component.Component):
 
         # Add and set separator after Plugins.
         def set_separator(model, _iter, data=None):
-            if model.get_value(_iter, 1) == '_separator_':
+            entry = deluge.common.decode_bytes(model.get_value(_iter, 1))
+            if entry == '_separator_':
                 return True
 
         self.treeview.set_row_separator_func(set_separator, None)
@@ -277,7 +278,7 @@ class Preferences(component.Component):
         self.iter_to_remove = None
 
         def on_foreach_row(model, path, _iter, user_data):
-            row_name = model.get_value(_iter, 1)
+            row_name = deluge.common.decode_bytes(model.get_value(_iter, 1))
             if row_name == user_data:
                 # This is the row we need to remove
                 self.page_num_to_remove = model.get_value(_iter, 0)