Add logout feature

Gtkmm3/res/appmenu.xml

@@ -32,6 +32,11 @@
                 <attribute name='icon'>system</attribute>
                 <attribute name='action'>win.size</attribute>
             </item>
+            <item>
+                <attribute name='label'>Log Out</attribute>
+                <attribute name='icon'>log_out</attribute>
+                <attribute name='action'>win.logout</attribute>
+            </item>
             <item>
                 <attribute name='label'>Exit</attribute>
                 <attribute name='icon'>log_out</attribute>

Gtkmm3/src/MyStack.cc

@@ -44,3 +44,7 @@ void MyStack::add_stack(Gtk::Box &vbox){
 void MyStack::btnlogin_clicked(){
     stack->set_visible_child(*main_overlay);
 }
+
+void MyStack::logout(){
+    stack->set_visible_child(*login_overlay);
+}

Gtkmm3/src/MyStack.hh

@@ -8,6 +8,7 @@ class MyStack{
 public:
     MyStack(Gtk::Window *parent1);
     void add_stack(Gtk::Box &vbox);
+    void logout();
     Gtk::Stack *stack;
 private:
     //Parent Window

Gtkmm3/src/MyWin.cc

@@ -30,6 +30,7 @@ height(450)
     add_action("back",sigc::mem_fun(*this,&MyWin::back_dialog));
     add_action("size",sigc::mem_fun(*this,&MyWin::size_dialog));
     add_action("about",sigc::mem_fun(*this,&MyWin::about_dialog));
+    add_action("logout",sigc::mem_fun(*this,&MyWin::win_logout));
 
     //Set Popover Menu
     popover.bind_model(gmenu);
@@ -148,6 +149,10 @@ void MyWin::about_dialog(){
     g_free(version);
 }
 
+void MyWin::win_logout(){
+    main_stack.logout();
+}
+
 void MyWin::win_quit(){
     hide();
 }

Gtkmm3/src/MyWin.hh

@@ -36,5 +36,6 @@ private:
     void size_dialog();
     void change_background(int response);
     void about_dialog();
+    void win_logout();
     void win_quit();
 };