Separated atlases from Font class

First use of shared_ptr, yay!


Former-commit-id: 4c22341fba5674746d5299cf0e8dbf6dc31d5362

include/Nazara/Utility/AbstractFontAtlas.hpp

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+// 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
+
+#pragma once
+
+#ifndef NAZARA_ABSTRACTFONTATLAS_HPP
+#define NAZARA_ABSTRACTFONTATLAS_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/SparsePtr.hpp>
+#include <Nazara/Math/Rect.hpp>
+#include <set>
+
+class NzAbstractImage;
+class NzFont;
+class NzImage;
+
+class NAZARA_API NzAbstractFontAtlas
+{
+	public:
+		NzAbstractFontAtlas() = default;
+		virtual ~NzAbstractFontAtlas();
+
+		virtual void Clear() = 0;
+		virtual void Free(NzSparsePtr<const NzRectui> rects, NzSparsePtr<unsigned int> layers, unsigned int count) = 0;
+		virtual NzAbstractImage* GetLayer(unsigned int layerIndex) const = 0;
+		virtual unsigned int GetLayerCount() const = 0;
+		virtual bool Insert(const NzImage& image, NzRectui* rect, bool* flipped, unsigned int* layerIndex) = 0;
+		void RegisterFont(NzFont* font);
+		void UnregisterFont(NzFont* font);
+
+	protected:
+		void NotifyCleared();
+
+	private:
+		std::set<NzFont*> m_registredFonts;
+};
+
+#endif // NAZARA_ABSTRACTFONTATLAS_HPP