add clock to bar

src/bar.cpp

@@ -0,0 +1,68 @@
+#include <ctime>
+
+#include <gtkmm/enums.h>
+#include <gtkmm/label.h>
+
+#include "bar.hpp"
+#include "glibmm/main.h"
+#include "sigc++/functors/mem_fun.h"
+#include "widgets/clock.hpp"
+
+Bar::Bar() {
+    gtk_layer_init_for_window(this->gobj());
+
+    gtk_layer_set_anchor(this->gobj(), GTK_LAYER_SHELL_EDGE_TOP, true);
+    gtk_layer_set_anchor(this->gobj(), GTK_LAYER_SHELL_EDGE_LEFT, true);
+    gtk_layer_set_anchor(this->gobj(), GTK_LAYER_SHELL_EDGE_RIGHT, true);
+
+    gtk_layer_auto_exclusive_zone_enable(this->gobj());
+
+    set_child(main_box);
+
+    load_css();
+    setup_ui();
+
+    this->clock.onUpdate();
+
+    Glib::signal_timeout().connect(
+        sigc::mem_fun(
+            this->clock, 
+            &Clock::onUpdate
+        ), 
+        1000
+    );
+}
+
+void Bar::setup_ui() {
+    Gtk::Box left_box{Gtk::Orientation::HORIZONTAL};
+    Gtk::Box center_box{Gtk::Orientation::HORIZONTAL};
+    Gtk::Box right_box{Gtk::Orientation::HORIZONTAL};
+    
+    main_box.set_start_widget(left_box);
+    main_box.set_center_widget(center_box);
+    main_box.set_end_widget(right_box);
+
+    Gtk::Label labelLeft("labelLeft");
+    Gtk::Label labelRight("labelRight");
+
+
+    left_box.append(labelLeft);
+    center_box.append(clock);
+    right_box.append(labelRight);
+}
+
+void Bar::load_css() {
+    auto css_provider = Gtk::CssProvider::create();
+    
+    css_provider->load_from_data(R"(
+        window { background-color: #222; color: #fff; }
+        #clock-label { font-weight: bold; font-family: monospace; }
+    )");
+    
+    Gtk::StyleContext::add_provider_for_display(
+        Gdk::Display::get_default(),
+        css_provider,
+        GTK_STYLE_PROVIDER_PRIORITY_APPLICATION
+    );
+}
+