app: replace n_items with is_empty property

1 files changed, 12 insertions, 5 deletions

diff --git a/app/src/widgets/turn_order_view.cpp b/app/src/widgets/turn_order_view.cpp
index 9d49ad8..c66212a 100644
--- a/app/src/widgets/turn_order_view.cpp
+++ b/app/src/widgets/turn_order_view.cpp
@@ -21,9 +21,16 @@ namespace turns::app::widgets
       , template_widget<turn_order_view, Gtk::ScrolledWindow>{TEMPLATE}
       , m_model{domain::turn_order::create()}
       , m_view{get_widget<Gtk::ListBox>("view")}
-      , m_n_items{m_model.get(), "n_items"}
+      , m_is_empty{*this, "is_empty", true}
   {
     m_view->bind_model(m_model, sigc::mem_fun(*this, &turn_order_view::handle_create_row));
+
+    // clang-format off
+    Glib::Binding::bind_property(m_model->property_n_items(),
+                                 m_is_empty.get_proxy(),
+                                 Glib::Binding::Flags::DEFAULT,
+                                 [](auto n) { return n == 0; });
+    // clang-format on
   }
 
   auto turn_order_view::append(Glib::ustring name, float priority, domain::disposition disposition) -> void
@@ -47,14 +54,14 @@ namespace turns::app::widgets
     m_model->remove(index);
   }
 
-  auto turn_order_view::get_n_items() const noexcept -> unsigned int
+  auto turn_order_view::get_is_empty() const noexcept -> bool
   {
-    return m_n_items;
+    return m_is_empty;
   }
 
-  auto turn_order_view::property_n_items() const -> Glib::PropertyProxy_ReadOnly<unsigned int>
+  auto turn_order_view::property_is_empty() const -> Glib::PropertyProxy_ReadOnly<bool>
   {
-    return m_n_items;
+    return m_is_empty.get_proxy();
   }
 
   auto turn_order_view::handle_create_row(Glib::RefPtr<Glib::Object> const item) -> Gtk::Widget *