On Wed, 7 Oct 2020 11:15:26 +0200 Kjell Ahlstedt <kjellahlst...@gmail.com> wrote:
> Have you seen the gtkmm tutorial? > https://developer.gnome.org/gtkmm-tutorial/3.24/gtkmm-tutorial.html > One of the examples in the /Menus and Toolbars/ chapter has a menu > with radio items. > > There is also a menu demo among the gtkmm demo programs. > https://gitlab.gnome.org/GNOME/gtkmm/-/blob/gtkmm-3-24/demos/gtk-demo/example_menus.cc > The demo program uses Gtk::RadioMenuItem. > > If you want to simplify the future upgrade of your program from > gtkmm3 to gtkmm4, I recommend that you look at the tutorial example > in the first place. It does not use Gtk::RadioMenuItem. There are no > specialized radio button classes or radio menu item classes in > gtkmm4. (It's still possible to make GUIs with radio buttons and > radio menu items.) Thanks again, I cloned https://gitlab.gnome.org/GNOME/gtkmm-documentation.git and checked out tag "3.24.0". I found an example that has radio items in the menu and a toggle item. However, this information was read using Gtk::Builder::add_from_string from a string (ui_info) with the format: "<interface>" " <!-- menubar -->" " <menu id='menu-example'>" " <submenu>" " <attribute name='label' translatable='yes'>_File</attribute>" " <section>" " <item>" and so on. When I put that string in an XML file "example.glade" and try to read it, glade gives the error: example.glade targets Gtk+ 2.12 But this version of Glade is for GTK+ 3 only. Make sure you can run this project with Glade 3.8 with no deprecated widgets first. In other words, it seems that the usage of "<menu>", "<submenu>" and "<section>" etc. is old-style, pre- GTK+ 3. I constructed MY menu with Glade 3.36 and that produces something like: <?xml version="1.0" encoding="UTF-8"?> <!-- Generated with glade 3.36.0 --> <interface> <requires lib="gtk+" version="3.22"/> <object class="GtkMenu" id="PlacePiece"> <property name="visible">True</property> <property name="can_focus">False</property> <child> <object class="GtkMenuItem" id="PlacePieceWhitePawn"> <property name="visible">True</property> etc. Most notably, when I add a radio menu item it results in the following in the .glade file (two radio menu items shown): <child> <object class="GtkMenuItem" id="PlacepieceBlackPawn"> <property name="visible">True</property> <property name="can_focus">False</property> <property name="action_name">PlacepieceMenu.PlacepieceBlackPawn</property> <property name="label" translatable="yes">Black pawn</property> <property name="use_underline">True</property> </object> </child> <child> <object class="GtkMenuItem" id="PlacepieceBlackRook"> <property name="visible">True</property> <property name="can_focus">False</property> <property name="action_name">PlacepieceMenu.PlacepieceBlackRook</property> <property name="label" translatable="yes">Black rook</property> <property name="use_underline">True</property> </object> </child> where-as the tutorial example has: " <section>" " <item>" " <attribute name='label' translatable='yes'>Choice_A</attribute>" " <attribute name='action'>win.choice</attribute>" " <attribute name='target'>a</attribute>" " </item>" " <item>" " <attribute name='label' translatable='yes'>Choice_B</attribute>" " <attribute name='action'>win.choice</attribute>" " <attribute name='target'>b</attribute>" " </item>" " </section>" Since the 'action' and 'target' attributes are important in order to get the whole to work as a radio button, I need to know how one can do this with glade. Or am I missing something? Carlo _______________________________________________ gtkmm-list mailing list gtkmm-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtkmm-list
