Add a tweak to Preferences->Tweaks to control the order in which categories appear in the Tag Browser

resources/default_tweaks.py

@@ -128,6 +128,17 @@ categories_collapsed_name_template = r'{first.sort:shorten(4,,0)} - {last.sort:s
 categories_collapsed_rating_template = r'{first.avg_rating:4.2f:ifempty(0)} - {last.avg_rating:4.2f:ifempty(0)}'
 categories_collapsed_popularity_template = r'{first.count:d} - {last.count:d}'
 
+#: Control order of categories in the tag browser
+# Change the following dict to change the order that categories are displayed in
+# the tag browser. Items are named using their lookup name, and will be sorted
+# using the number supplied. The lookup name '*' stands for all names that
+# otherwise do not appear. Two names with the same value will be sorted
+# according the the default order; the one used when the dict is empty.
+# Example: tag_browser_category_order = {'series':1, 'tags':2, '*':3}
+# resulting in the order series, tags, then everything else in default order.
+tag_browser_category_order = {'*':1}
+
+
 #: Specify columns to sort the booklist by on startup
 # Provide a set of columns to be sorted on when calibre starts
 #  The argument is None if saved sort history is to be used

src/calibre/gui2/tag_browser/model.py

@@ -10,6 +10,7 @@ __docformat__ = 'restructuredtext en'
 
 import traceback, cPickle, copy
 from itertools import repeat
+from collections import defaultdict
 
 from PyQt4.Qt import (QAbstractItemModel, QIcon, QVariant, QFont, Qt,
         QMimeData, QModelIndex, pyqtSignal, QObject)
@@ -831,7 +832,12 @@ class TagsModel(QAbstractItemModel): # {{{
                         if lower(t.name).find(self.filter_categories_by) >= 0]
 
         tb_categories = self.db.field_metadata
-        for category in tb_categories:
+        y = tweaks['tag_browser_category_order']
+        deforder = y.get('*', 100)
+        order = defaultdict(lambda : deforder)
+        order.update(y)
+        tb_keys = sorted(tb_categories.iterkeys(), key=lambda x: order[x])
+        for category in tb_keys:
             if category in data: # The search category can come and go
                 self.row_map.append(category)
                 self.categories[category] = tb_categories[category]['name']