dummy widget and widget system

headers/enduro2d/high/_all.hpp

@@ -45,6 +45,7 @@
 #include "components/spine_player.hpp"
 #include "components/sprite_renderer.hpp"
 #include "components/touchable.hpp"
+#include "components/widget.hpp"
 
 #include "systems/camera_system.hpp"
 #include "systems/flipbook_system.hpp"

headers/enduro2d/high/_high.hpp

@@ -65,6 +65,7 @@ namespace e2d
     class spine_player;
     class sprite_renderer;
     class touchable;
+    class widget;
 
     class camera_system;
     class flipbook_system;

headers/enduro2d/high/components/widget.hpp

@@ -0,0 +1,75 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018-2020, by Matvey Cherevko (blackmatov@gmail.com)
+ ******************************************************************************/
+
+#pragma once
+
+#include "_components.hpp"
+
+namespace e2d
+{
+    class widget final {
+    public:
+        widget() = default;
+
+        widget& size(const v2f& value) noexcept;
+        [[nodiscard]] const v2f& size() const noexcept;
+
+        widget& pivot(const v2f& value) noexcept;
+        [[nodiscard]] const v2f& pivot() const noexcept;
+    private:
+        v2f size_ = v2f::zero();
+        v2f pivot_ = v2f::unit() * 0.5f;
+    };
+}
+
+namespace e2d
+{
+    template <>
+    class factory_loader<widget> final : factory_loader<> {
+    public:
+        static const char* schema_source;
+
+        bool operator()(
+            widget& component,
+            const fill_context& ctx) const;
+
+        bool operator()(
+            asset_dependencies& dependencies,
+            const collect_context& ctx) const;
+    };
+}
+
+namespace e2d
+{
+    template <>
+    class component_inspector<widget> final : component_inspector<> {
+    public:
+        static const char* title;
+
+        void operator()(gcomponent<widget>& c) const;
+    };
+}
+
+namespace e2d
+{
+    inline widget& widget::size(const v2f& value) noexcept {
+        size_ = value;
+        return *this;
+    }
+
+    inline const v2f& widget::size() const noexcept {
+        return size_;
+    }
+
+    inline widget& widget::pivot(const v2f& value) noexcept {
+        pivot_ = value;
+        return *this;
+    }
+
+    inline const v2f& widget::pivot() const noexcept {
+        return pivot_;
+    }
+}

headers/enduro2d/high/systems/widget_system.hpp

@@ -0,0 +1,26 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018-2020, by Matvey Cherevko (blackmatov@gmail.com)
+ ******************************************************************************/
+
+#pragma once
+
+#include "_systems.hpp"
+
+namespace e2d
+{
+    class widget_system final
+        : public ecs::system<ecs::after<systems::update_event>> {
+    public:
+        widget_system();
+        ~widget_system() noexcept final;
+
+        void process(
+            ecs::registry& owner,
+            const ecs::after<systems::update_event>& trigger) override;
+    private:
+        class internal_state;
+        std::unique_ptr<internal_state> state_;
+    };
+}