>From: Bobby King <bking321@xxxxxxxxxxx> > >How does one show and hide menu items? At various states of an >application, I want only a specific subset of menu items to be visible >(accessible). Each state is entered by selecting a specific menu item. That must be a hard problem because I have not seen a good solution to it. Until I come up with an elegant solution, I don't waste time for writing messy code like others. Here is what I have come up so far: Keep a set of active menu items (and key and mouse operations). Go that set through and turn on/off menu items (and KMO). For each state, write a list of allowed menu items (and KMO). You may need to keep a separate always-active set (like "New Window" which is always on). You may need to have different groups, each group having one active state (like a customable spline editor in two different editors: one group for editors, another for splines). Then when updating, make the set of active menu items empty, go through all active states, and re-build the set of active menu items, and update the menus. It is a hierarchical system (main app --> editor --> subeditor). Active sets could be pushed to a stack, but may need a stack for each part of the application (like multiple editors in the same window). In a webbrowser, the parent script may forbid menu items to appear in the child window. It might be we also need different set operations: union, substraction. It is a hard problem if anyone asks me. A good solution should be a part of GTK. The discussion could continue in gtk-devel-list. Regards, Juhana _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
