Add option to shown full file pathnames in Editor File Browser.

src/calibre/gui2/tweak_book/__init__.py

@@ -73,6 +73,7 @@ d['editor_accepts_drops'] = True
 d['toolbar_icon_size'] = 24
 d['insert_full_screen_image'] = False
 d['preserve_aspect_ratio_when_inserting_image'] = False
+d['file_list_shows_full_pathname'] = False
 del d
 
 ucase_map = {l:string.ascii_uppercase[i] for i, l in enumerate(string.ascii_lowercase)}

src/calibre/gui2/tweak_book/boss.py

@@ -169,6 +169,7 @@ class Boss(QObject):
         if ret == p.Accepted:
             setup_cssutils_serialization()
             self.gui.apply_settings()
+            self.refresh_file_list()
         if ret == p.Accepted or p.dictionaries_changed:
             for ed in editors.itervalues():
                 ed.apply_settings(dictionaries_changed=p.dictionaries_changed)

src/calibre/gui2/tweak_book/file_list.py

@@ -304,17 +304,21 @@ class FileList(QTreeWidget):
             return category
 
         def set_display_name(name, item):
-            if name in processed:
-                # We have an exact duplicate (can happen if there are
-                # duplicates in the spine)
-                item.setText(0, processed[name].text(0))
-                item.setText(1, processed[name].text(1))
-                return
+            if tprefs['file_list_shows_full_pathname']:
+                text = name
+            else:
+                if name in processed:
+                    # We have an exact duplicate (can happen if there are
+                    # duplicates in the spine)
+                    item.setText(0, processed[name].text(0))
+                    item.setText(1, processed[name].text(1))
+                    return
+
+                parts = name.split('/')
+                text = parts.pop()
+                while text in seen and parts:
+                    text = parts.pop() + '/' + text
 
-            parts = name.split('/')
-            text = parts.pop()
-            while text in seen and parts:
-                text = parts.pop() + '/' + text
             seen[text] = item
             item.setText(0, text)
             item.setText(1, hexlify(sort_key(text)))

src/calibre/gui2/tweak_book/preferences.py

@@ -321,6 +321,14 @@ class MainWindowSettings(BasicSettings):
         ))
         l.addRow(nd)
 
+        nd = self('file_list_shows_full_pathname')
+        nd.setText(_('Show full file pathnames in Files Browser'))
+        nd.setToolTip('<p>' + _(
+            'Showing the full file pathnames is useful when editing books that contain'
+            ' directories or the same file name more than once.'
+        ))
+        l.addRow(nd)
+
 class PreviewSettings(BasicSettings):
 
     def __init__(self, parent=None):