I miss i18n in gwenview, so I have modified gwenview ebuild to include i18n support. (taken from k3b ebuild) It works for me (I only tested fr locales, but it should work with others), you should review it. :)
Created attachment 99649 [details] gwenview 1.4.0 ebuild with i18n
Works great here, thanks for submitting. In CVS.