#ifndef _GUI_FONT_FACTORY_H
#define _GUI_FONT_FACTORY_H

#include <irrlicht.h>
#include <map>
#include "gui_freetype_font.h"

struct TrueTypeFontParameters
{
	TrueTypeFontParameters( const irr::core::string<c16>& fileName, unsigned int size, bool antiAlias, bool transparency )
		: FileName(fileName), Size(size), AntiAlias(antiAlias), Transparency(transparency) {}
	TrueTypeFontParameters() : Size(0), AntiAlias(false), Transparency(false) {}

	bool isValid();

	irr::core::string<c16> FileName;
	unsigned int Size;
	bool AntiAlias;
	bool Transparency;
};

// A font factory for truetype fonts, using the freetype library
class TrueTypeFontFactory : public irr::gui::IGUIFontFactory
{
public:
	TrueTypeFontFactory(irr::video::IVideoDriver* driver);
	virtual ~TrueTypeFontFactory();

	//! adds a font to the GUI Environment based on its name
	//! In this case the name has the format: "filename|parameters"
	//! valid parameters are:
	//! the size in digits
	//! a for antialiasing
	//! t for transparency
	//! example: "vera.ttf|18at" would load file vera.ttf with size 18 antialiased and transparent
	/** \param typeName: name of the font to add.
	\return Returns pointer to the new font or null if not successful. */
	virtual irr::gui::IGUIFont* addGUIFont(const irr::core::string<c16>& fontName);

	//! return a string for the given parameters which can be used in addGUIFont
	static irr::core::string<c16> makeFontName(const TrueTypeFontParameters &parameters);

	//! return the parameters which can be received by parsing the given fontname
	static TrueTypeFontParameters parseFontName(const irr::core::string<c16>& fontName);

private:
	irr::video::IVideoDriver* Driver;

	// note: using std::map instead or irr::map, because the irr::map has so far no good interface
    typedef std::map<irr::core::string<c16>, CGUITTFace*> FaceMap;
    FaceMap mFaceMap;

    typedef std::map<irr::core::string<c16>, irr::gui::IGUIFont*> FontMap;
    FontMap mFontMap;
};

#endif // _GUI_FONT_FACTORY_H