Utility/Icon: Make Icon a RefCounted object

include/Nazara/Utility/Icon.hpp

@@ -8,6 +8,7 @@
 #define NAZARA_ICON_HPP
 
 #include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/ObjectRef.hpp>
 #include <Nazara/Math/Vector2.hpp>
 #include <Nazara/Utility/Config.hpp>
 
@@ -16,22 +17,29 @@ namespace Nz
 	class Image;
 	class IconImpl;
 
-	class NAZARA_UTILITY_API Icon
+	class Icon;
+
+	using IconRef = ObjectRef<Icon>;
+
+	class NAZARA_UTILITY_API Icon : public RefCounted
 	{
 		friend class WindowImpl;
 
 		public:
-			Icon();
-			~Icon();
+			inline Icon();
+			inline explicit Icon(const Image& icon);
+			inline ~Icon();
 
 			bool Create(const Image& icon);
 			void Destroy();
 
-			bool IsValid() const;
+			inline bool IsValid() const;
 
 		private:
 			IconImpl* m_impl;
 	};
 }
 
+#include <Nazara/Utility/Icon.inl>
+
 #endif // NAZARA_ICON_HPP

include/Nazara/Utility/Icon.inl

@@ -0,0 +1,42 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Utility module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Utility/Cursor.hpp>
+#include <Nazara/Core/ErrorFlags.hpp>
+#include <Nazara/Utility/Debug.hpp>
+
+namespace Nz
+{
+	Icon::Icon() :
+	m_impl(nullptr)
+	{
+	}
+
+	inline Icon::Icon(const Image& icon)
+	{
+		ErrorFlags flags(ErrorFlag_ThrowException, true);
+		Create(icon);
+	}
+
+	Icon::~Icon()
+	{
+		Destroy();
+	}
+
+	bool Icon::IsValid() const
+	{
+		return m_impl != nullptr;
+	}
+
+	template<typename... Args>
+	IconRef Icon::New(Args&&... args)
+	{
+		std::unique_ptr<Icon> object(new Icon(std::forward<Args>(args)...));
+		object->SetPersistent(false);
+
+		return object.release();
+	}
+}
+
+#include <Nazara/Utility/DebugOff.hpp>

include/Nazara/Utility/Window.hpp

@@ -15,18 +15,18 @@
 #include <Nazara/Core/String.hpp>
 #include <Nazara/Math/Vector2.hpp>
 #include <Nazara/Utility/Config.hpp>
+#include <Nazara/Utility/Cursor.hpp>
 #include <Nazara/Utility/CursorController.hpp>
 #include <Nazara/Utility/Enums.hpp>
 #include <Nazara/Utility/EventHandler.hpp>
+#include <Nazara/Utility/Icon.hpp>
 #include <Nazara/Utility/VideoMode.hpp>
 #include <Nazara/Utility/WindowHandle.hpp>
 #include <queue>
 
 namespace Nz
 {
-	class Cursor;
 	class Image;
-	class Icon;
 	class WindowImpl;
 
 	class NAZARA_UTILITY_API Window
@@ -86,7 +86,7 @@ namespace Nz
 			inline void SetCursor(SystemCursor systemCursor);
 			void SetEventListener(bool listener);
 			void SetFocus();
-			void SetIcon(const Icon& icon);
+			void SetIcon(IconRef icon);
 			void SetMaximumSize(const Vector2i& maxSize);
 			void SetMaximumSize(int width, int height);
 			void SetMinimumSize(const Vector2i& minSize);
@@ -126,6 +126,7 @@ namespace Nz
 			CursorController m_cursorController;
 			CursorRef m_cursor;
 			EventHandler m_eventHandler;
+			IconRef m_icon;
 			Mutex m_eventMutex;
 			Mutex m_eventConditionMutex;
 			bool m_asyncWindow;

src/Nazara/Utility/Icon.cpp

@@ -16,30 +16,19 @@
 
 namespace Nz
 {
-	Icon::Icon() :
-	m_impl(nullptr)
-	{
-	}
-
-	Icon::~Icon()
-	{
-		Destroy();
-	}
-
 	bool Icon::Create(const Image& icon)
 	{
 		Destroy();
 
-		m_impl = new IconImpl;
-		if (!m_impl->Create(icon))
+		std::unique_ptr<IconImpl> impl(new IconImpl);
+		if (!impl->Create(icon))
 		{
 			NazaraError("Failed to create icon implementation");
-			delete m_impl;
-			m_impl = nullptr;
-
 			return false;
 		}
 
+		m_impl = impl.release();
+
 		return true;
 	}
 
@@ -53,9 +42,4 @@ namespace Nz
 			m_impl = nullptr;
 		}
 	}
-
-	bool Icon::IsValid() const
-	{
-		return m_impl != nullptr;
-	}
 }

src/Nazara/Utility/Window.cpp

@@ -408,23 +408,13 @@ namespace Nz
 		m_impl->SetFocus();
 	}
 
-	void Window::SetIcon(const Icon& icon)
+	void Window::SetIcon(IconRef icon)
 	{
-		#if NAZARA_UTILITY_SAFE
-		if (!m_impl)
-		{
-			NazaraError("Window not created");
-			return;
-		}
+		NazaraAssert(m_impl, "Window not created");
+		NazaraAssert(icon && icon.IsValid(), "Invalid icon");
 
-		if (!icon.IsValid())
-		{
-			NazaraError("Icon is not valid");
-			return;
-		}
-		#endif
-
-		m_impl->SetIcon(icon);
+		m_icon = std::move(icon);
+		m_impl->SetIcon(*m_icon);
 	}
 
 	void Window::SetMaximumSize(const Vector2i& maxSize)