Is there a way in Gtk+ to stack one widget on top of another — not counting GtkFixed? GtkFixed doesn’t work well for two reasons: 1) I need Z order, and 2) I need one widget to stretch and fill provided space.
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Is there a way in Gtk+ to stack one widget on top of another — not counting GtkFixed? GtkFixed doesn’t work well for two reasons: 1) I need Z order, and 2) I need one widget to stretch and fill provided space.
I don’t think there is a proper container in standard GTK. I would subclass Gtk::Fixed… it is still the closest one you can get, and if you use gtkmm then subclassing shouldn’t be very difficult¹. Then you can control the dimensions of all widgets, stretching one selected child to fill space.
To control Z-axis you will probably need to manipulate widget’s X windows–check GDK documentation on topic of GDK windows². I remember that in PyGTK each widget has gtk.Widget.window property, I guess that the same is for gtkmm. This assumes that all your child widgets have X windows, so f.e. you’ll need to wrap Gtk::Label inside Gtk::EventBox.
¹ http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/chapter-customwidgets.html
² http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGdk_1_1Window.html#6eef65b862344ad01b01e527f2c39741