Change global widget container to page

include/gui/Page.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <vector>
+#include <memory>
+
+namespace mgl {
+    class Event;
+    class Window;
+}
+
+namespace gsr {
+    class Widget;
+
+    class Page {
+    public:
+        Page() = default;
+        Page(const Page&) = delete;
+        Page& operator=(const Page&) = delete;
+
+        void add_widget(std::unique_ptr<Widget> widget);
+
+        void on_event(mgl::Event &event, mgl::Window &window);
+        void draw(mgl::Window &window);
+    private:
+        std::vector<std::unique_ptr<Widget>> widgets;
+    };
+}

include/gui/Widget.hpp

@@ -24,6 +24,5 @@ namespace gsr {
         virtual mgl::vec2f get_position() const;
     protected:
         mgl::vec2f position;
-        bool move_to_top = false;
     };
 }

include/gui/WidgetContainer.hpp

@@ -1,30 +0,0 @@
-#pragma once
-
-#include <vector>
-#include <memory>
-
-namespace mgl {
-    class Event;
-    class Window;
-}
-
-namespace gsr {
-    class Widget;
-
-    class WidgetContainer {
-    public:
-        static WidgetContainer& get_instance();
-
-        void add_widget(Widget *widget);
-        void remove_widget(Widget *widget);
-
-        void on_event(mgl::Event &event, mgl::Window &window);
-        void draw(mgl::Window &window);
-    private:
-        WidgetContainer() = default;
-        WidgetContainer& operator=(const WidgetContainer&) = delete;
-        WidgetContainer(const WidgetContainer&) = delete;
-    private:
-        std::vector<Widget*> widgets;
-    };
-}