Make custom_column_widgets.py, book_info.py, and book_details.py use comments_to_html. Fix _parent to parent()

src/calibre/gui2/book_details.py

@@ -46,6 +46,7 @@ def render_rows(data):
             txt = txt.decode(preferred_encoding, 'replace')
         if key.endswith(u':html'):
             key = key[:-5]
+            txt = comments_to_html(txt)
         elif '</font>' not in txt:
             txt = prepare_string_for_xml(txt)
         if 'id' in data:

src/calibre/gui2/custom_column_widgets.py

@@ -19,6 +19,7 @@ from calibre.gui2.comments_editor import Editor as CommentsEditor
 from calibre.gui2 import UNDEFINED_QDATE, error_dialog
 from calibre.utils.config import tweaks
 from calibre.utils.icu import sort_key
+from calibre.library.comments import comments_to_html
 
 class Base(object):
 
@@ -197,7 +198,7 @@ class Comments(Base):
     def setter(self, val):
         if val is None:
             val = ''
-        self._tb.html = val
+        self._tb.html = comments_to_html(val)
 
     def getter(self):
         val = unicode(self._tb.html).strip()

src/calibre/gui2/dialogs/book_info.py

@@ -136,6 +136,7 @@ class BookInfo(QDialog, Ui_BookInfo):
             txt  = info[key]
             if key.endswith(':html'):
                 key = key[:-5]
+                txt = comments_to_html(txt)
             if key != _('Path'):
                 txt  = u'<br />\n'.join(textwrap.wrap(txt, 120))
             rows += u'<tr><td><b>%s:</b></td><td>%s</td></tr>'%(key, txt)

src/calibre/gui2/library/delegates.py

@@ -306,7 +306,7 @@ class CcCommentsDelegate(QStyledItemDelegate): # {{{
         painter.save()
         if hasattr(QStyle, 'CE_ItemViewItem'):
             style.drawControl(QStyle.CE_ItemViewItem, option,
-                    painter, self._parent)
+                    painter, self.parent())
         elif option.state & QStyle.State_Selected:
             painter.fillRect(option.rect, option.palette.highlight())
         painter.setClipRect(option.rect)