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https://bugzilla.redhat.com/show_bug.cgi?id=525371
--- Comment #20 from fujiwara tfujiwar@redhat.com 2009-10-05 04:39:31 EDT --- I'm a bit confused about the implementation.
When Orientation "Left" is chosen with gnome-panel property dialog, The angle is 90 and gtk_label_set_angle (label, 90) is called.
On English locales: The base gravity is PANGO_GRAVITY_WEST and the resolved gratity of latin script is PANGO_GRAVITY_SOUTH. It means the string orientation is bottom to top.
On Japanese locales: The base gravity is PANGO_GRAVITY_WEST and the resolved gratity of hun/kana script is PANGO_GRAVITY_WEST. It means the string orientation is top to bottom.
Is it better that the latin strip orientation is also top to bottom on the panel? Fedora GNOME Panel has the application menu who has icon, "Application", "Places", "System" menus. Is the widget orientation is top to bottom when Orientation "Left" is chosen ?
Currently GtkLabel provides the rotate API(gtk_label_set_angle) however a flip API for strings likes gdk_pixbuf_flip() maybe nice in the panel property so that Orientation "Left" and "Right" are mirrored.