From c87ebdbfacdc2e1b5ae50286a5437e7b9eceafa7 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Tue, 16 Jul 2024 16:37:49 +0200
Subject: app: replace n_items with is_empty property

---
 app/src/widgets/turn_order_view.cpp | 17 ++++++++++++-----
 app/src/windows/tracker.cpp         | 16 ++++++++--------
 2 files changed, 20 insertions(+), 13 deletions(-)

(limited to 'app/src')

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 *
diff --git a/app/src/windows/tracker.cpp b/app/src/windows/tracker.cpp
index f57e9eb..21dd21f 100644
--- a/app/src/windows/tracker.cpp
+++ b/app/src/windows/tracker.cpp
@@ -37,23 +37,23 @@ namespace turns::app::windows
     m_stack->add(*m_turn_order);
 
     // clang-format off
-    m_clear_action_enabled = Glib::Binding::bind_property(m_turn_order->property_n_items(),
+    m_clear_action_enabled = Glib::Binding::bind_property(m_turn_order->property_is_empty(),
                                                           m_clear_action->property_enabled(),
-                                                          Glib::Binding::Flags::SYNC_CREATE);
+                                                          Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
 
-    m_controls_revealed = Glib::Binding::bind_property(m_turn_order->property_n_items(),
+    m_controls_revealed = Glib::Binding::bind_property(m_turn_order->property_is_empty(),
                                                        m_controls->property_reveal_child(),
-                                                       Glib::Binding::Flags::SYNC_CREATE);
+                                                       Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
 
-    m_visible_child_widget = Glib::Binding::bind_property(m_turn_order->property_n_items(),
+    m_visible_child_widget = Glib::Binding::bind_property(m_turn_order->property_is_empty(),
                                                           m_stack->property_visible_child(),
                                                           Glib::Binding::Flags::SYNC_CREATE,
-                                                          [this](auto count) { return count ? m_turn_order : m_empty; });
+                                                          [this](auto empty) { return empty ? m_empty : m_turn_order; });
 
-    m_subtitle_text = Glib::Binding::bind_property(m_turn_order->property_n_items(),
+    m_subtitle_text = Glib::Binding::bind_property(m_turn_order->property_is_empty(),
                                                    m_subtitle,
                                                    Glib::Binding::Flags::SYNC_CREATE,
-                                                   [](auto count) { return count ? "" : _(lang::no_active_turn_order); });
+                                                   [](auto empty) { return empty ? _(lang::no_active_turn_order) : ""; });
     // clang-format on
 
     add_action("add_participant", sigc::mem_fun(*this, &tracker::handle_add_participant));
-- 
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