Added TextDrawer classes

Former-commit-id: 4c5ace385f1a9b9ceebb774022bbc001b69a3bb4

include/Nazara/Utility/AbstractTextDrawer.hpp

@@ -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
+
+#pragma once
+
+#ifndef NAZARA_ABSTRACTTEXTDRAWER_HPP
+#define NAZARA_ABSTRACTTEXTDRAWER_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/Color.hpp>
+#include <Nazara/Math/Rect.hpp>
+#include <Nazara/Math/Vector2.hpp>
+
+class NzAbstractImage;
+class NzFont;
+
+class NAZARA_API NzAbstractTextDrawer
+{
+	public:
+		struct Glyph;
+
+		NzAbstractTextDrawer() = default;
+		virtual ~NzAbstractTextDrawer();
+
+		virtual const NzRectui& GetBounds() const = 0;
+		virtual NzFont* GetFont(unsigned int index) const = 0;
+		virtual unsigned int GetFontCount() const = 0;
+		virtual const Glyph& GetGlyph(unsigned int index) const = 0;
+		virtual unsigned int GetGlyphCount() const = 0;
+
+		struct Glyph
+		{
+			NzColor color;
+			NzRectui atlasRect;
+			NzVector2f corners[4];
+			NzAbstractImage* atlas;
+			bool flipped;
+		};
+};
+
+#endif // NAZARA_ABSTRACTTEXTDRAWER_HPP