Show the languages currently used at the top of the drop down list of languages

src/calibre/gui2/dialogs/metadata_bulk.py

@@ -335,6 +335,7 @@ class MetadataBulkDialog(ResizableDialog, Ui_MetadataBulkDialog):
         geom = gprefs.get('bulk_metadata_window_geometry', None)
         if geom is not None:
             self.restoreGeometry(bytes(geom))
+        self.languages.init_langs(self.db)
         self.languages.setEditText('')
         self.exec_()
 

src/calibre/gui2/languages.py

@@ -13,7 +13,7 @@ from calibre.utils.icu import sort_key, lower
 
 class LanguagesEdit(MultiCompleteComboBox):
 
-    def __init__(self, parent=None):
+    def __init__(self, parent=None, db=None):
         MultiCompleteComboBox.__init__(self, parent)
 
         self.setSizeAdjustPolicy(self.AdjustToMinimumContentsLengthWithIcon)
@@ -23,9 +23,14 @@ class LanguagesEdit(MultiCompleteComboBox):
         self.comma_map = {k:k.replace(',', '|') for k in self.names_with_commas}
         self.comma_rmap = {v:k for k, v in self.comma_map.iteritems()}
         self._rmap = {lower(v):k for k,v in self._lang_map.iteritems()}
+        if db is not None:
+            self.init_langs(db)
 
+    def init_langs(self, db):
+        pmap = {self._lang_map.get(x[1], x[1]):1 for x in
+                db.get_languages_with_ids()}
         all_items = sorted(self._lang_map.itervalues(),
-            key=sort_key)
+            key=lambda x: (-pmap.get(x, 0), sort_key(x)))
         self.update_items_cache(all_items)
         for item in all_items:
             self.addItem(item)

src/calibre/gui2/library/delegates.py

@@ -233,7 +233,8 @@ class CompleteDelegate(QStyledItemDelegate): # {{{
 class LanguagesDelegate(QStyledItemDelegate): # {{{
 
     def createEditor(self, parent, option, index):
-        editor = LanguagesEdit(parent)
+        editor = LanguagesEdit(parent=parent)
+        editor.init_langs(index.model().db)
         ct = index.data(Qt.DisplayRole).toString()
         editor.setEditText(ct)
         editor.lineEdit().selectAll()

src/calibre/gui2/metadata/basic_widgets.py

@@ -1163,6 +1163,7 @@ class LanguagesEdit(LE): # {{{
         return property(fget=fget, fset=fset)
 
     def initialize(self, db, id_):
+        self.init_langs(db)
         lc = []
         langs = db.languages(id_, index_is_id=True)
         if langs: