ui: the Source badge, and the source panels as slide-over pages

src/ui_source.cpp

@@ -54,7 +54,7 @@ void keep_tabs_icon_free(App& app) {
 }
 
 void build_source_panels(App& app) {
-  if (app.side_stack == nullptr || app.acq == nullptr || app.acq->source() == nullptr) return;
+  if (app.slideover.stack == nullptr || app.acq == nullptr || app.acq->source() == nullptr) return;
   SourceKind* kind = find_kind(app.source_kind);
   if (kind == nullptr) return;
   for (const SourcePanel& p : kind->make_panels(*app.acq->source())) {
@@ -63,15 +63,10 @@ void build_source_panels(App& app) {
                    p.widget == nullptr ? "no widget" : "an empty id");
       continue;
     }
-    // Each page scrolls on its own, like Measure and Signals: panels differ in height.
-    GtkWidget* scroller = gtk_scrolled_window_new();
-    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroller), GTK_POLICY_NEVER,
-                                   GTK_POLICY_AUTOMATIC);
-    gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scroller), p.widget);
     const std::string name = "source-" + p.id;
-    // The tab is its title: the sidebar's pills are words, not glyphs.
-    adw_view_stack_add_titled(ADW_VIEW_STACK(app.side_stack), scroller, name.c_str(),
-                              p.title.c_str());
+    // The panel is a slide-over page now: the slide-over wraps it in its own scroller, and with two or
+    // more source pages it draws the segmented switch (the E-1608: Analog out, Digital I/O).
+    if (!slideover_add_page(app, name, p.title, p.widget)) continue;
     app.source_panels.push_back({name, p.title, p.widget});
   }
   // Disconnected until the first Connected event says otherwise.