Sdk/BaseWidget: Add visibility control

SDK/include/NDK/BaseWidget.hpp

@@ -49,6 +49,8 @@ namespace Ndk
 			inline const Nz::Vector2f& GetContentSize() const;
 			inline Nz::Vector2f GetSize() const;
 
+			inline bool IsVisible() const;
+
 			void GrabKeyboard();
 
 			virtual void ResizeToContent() = 0;
@@ -58,6 +60,8 @@ namespace Ndk
 			inline void SetPadding(float left, float top, float right, float bottom);
 			void SetSize(const Nz::Vector2f& size);
 
+			void Show(bool show = true);
+
 			BaseWidget& operator=(const BaseWidget&) = delete;
 			BaseWidget& operator=(BaseWidget&&) = default;
 
@@ -104,6 +108,7 @@ namespace Ndk
 			Nz::SpriteRef m_backgroundSprite;
 			Nz::Vector2f m_contentSize;
 			BaseWidget* m_widgetParent;
+			bool m_visible;
 	};
 }
 

SDK/include/NDK/BaseWidget.inl

@@ -14,7 +14,8 @@ namespace Ndk
 	m_backgroundColor(Nz::Color(230, 230, 230, 255)),
 	m_canvas(nullptr),
 	m_contentSize(50.f, 50.f),
-	m_widgetParent(nullptr)
+	m_widgetParent(nullptr),
+	m_visible(true)
 	{
 		SetPadding(5.f, 5.f, 5.f, 5.f);
 	}
@@ -31,6 +32,7 @@ namespace Ndk
 
 	inline void BaseWidget::AddChild(std::unique_ptr<BaseWidget>&& widget)
 	{
+		widget->Show(m_visible);
 		m_children.emplace_back(std::move(widget));
 	}
 
@@ -68,6 +70,11 @@ namespace Ndk
 		return Nz::Vector2f(m_contentSize.x + m_padding.left + m_padding.right, m_contentSize.y + m_padding.top + m_padding.bottom);
 	}
 
+	inline bool BaseWidget::IsVisible() const
+	{
+		return m_visible;
+	}
+
 	inline void BaseWidget::SetContentSize(const Nz::Vector2f& size)
 	{
 		NotifyParentResized(size);

SDK/src/NDK/BaseWidget.cpp

@@ -48,7 +48,7 @@ namespace Ndk
 			m_backgroundSprite->SetColor(m_backgroundColor);
 			m_backgroundSprite->SetMaterial(Nz::Material::New((m_backgroundColor.IsOpaque()) ? "Basic2D" : "Translucent2D"));
 
-			m_backgroundEntity = m_world->CreateEntity();
+			m_backgroundEntity = CreateEntity();
 			m_backgroundEntity->AddComponent<GraphicsComponent>().Attach(m_backgroundSprite, -1);
 			m_backgroundEntity->AddComponent<NodeComponent>().SetParent(this);
 
@@ -61,6 +61,11 @@ namespace Ndk
 		}
 	}
 
+	void BaseWidget::GrabKeyboard()
+	{
+		m_canvas->SetKeyboardOwner(this);
+	}
+
 	void BaseWidget::SetBackgroundColor(const Nz::Color& color)
 	{
 		m_backgroundColor = color;
@@ -77,10 +82,27 @@ namespace Ndk
 		SetContentSize({std::max(size.x - m_padding.left - m_padding.right, 0.f), std::max(size.y - m_padding.top - m_padding.bottom, 0.f)});
 	}
 
+	void BaseWidget::Show(bool show)
+	{
+		if (m_visible != show)
+		{
+			m_visible = show;
+
+			for (const EntityHandle& entity : m_entities)
+				entity->Enable(show);
+
+			for (const auto& widgetPtr : m_children)
+				widgetPtr->Show(show);
+		}
+	}
+
 	EntityHandle BaseWidget::CreateEntity()
 	{
-		m_entities.emplace_back(m_world->CreateEntity());
-		return m_entities.back();
+		EntityHandle newEntity = m_world->CreateEntity();
+		newEntity->Enable(m_visible);
+
+		m_entities.emplace_back(newEntity);
+		return newEntity;
 	}
 
 	void BaseWidget::DestroyEntity(Entity* entity)
@@ -91,11 +113,6 @@ namespace Ndk
 		m_entities.erase(it);
 	}
 
-	void BaseWidget::GrabKeyboard()
-	{
-		m_canvas->SetKeyboardOwner(this);
-	}
-
 	void BaseWidget::Layout()
 	{
 		if (m_canvas)