It's time to dust off the GoMail application design again and adapt it for GTK+ widgets. As the andlabs UI application (when run on Linux) was using GTK+, it would seem logical to start from there. However, this time we are not limited by the lowest common denominator design constraint, which the native cross-platform design of andlabs worked around, so let's start from scratch and see what GTK+ can do.
Sample application
Layout
Basic layout with GTK+-based applications uses a familiar vertical and horizontal box model. Go-GTK (as a straightforward binding to this API) exposes this same functionality. We lay out the GoMail main window using a vertical box to position the menu and toolbar above the main content...