Add Filter Expressions^WButton^WShortcut^WBookmark preferences.

Add comments noting that

- We might want to do something different when the bookmark button is
  pressed.
- The display filters (dfilters file) and gui.filter_expressions
  preferences should be merged.
- Many buttons on Qt4 + OS X + unifiedTitleAndToolBarOnMac makes the
  main window really wide.

Add a qstring_strdup convenience routine. Add "disabled" display filter
edit icons. Fix up whitespace and descriptions in a couple of places.

svn path=/trunk/; revision=47522

1 files changed, 9 insertions, 1 deletions

diff --git a/ui/qt/qt_ui_utils.h b/ui/qt/qt_ui_utils.h
index 6d995fb9b2..454312b4a1 100644
--- a/ui/qt/qt_ui_utils.h
+++ b/ui/qt/qt_ui_utils.h
@@ -75,12 +75,20 @@ extern gboolean main_do_quit(void);
 }
 #endif /* __cplusplus */
 
+/** Create a glib-compatible copy of a QString.
+ *
+ * @param q_string A QString.
+ *
+ * @return A copy of the QString. UTF-8 allocated with g_malloc().
+ */
+gchar *qstring_strdup(QString q_string);
+
 /** Transfer ownership of a GLib character string to a newly constructed QString
  *
  * @param glib_string A string allocated with g_malloc() or NULL. Will be
  * freed.
  *
- * @return a QString instance created from the input string.
+ * @return A QString instance created from the input string.
  */
 QString gchar_free_to_qstring(gchar *glib_string);