This class stores all font files required in STK. More...

Inheritance diagram for FontManager:

Public Member Functions
	FontManager ()
	Constructor.

	~FontManager ()
	Destructor.

template<typename T >
T *	getFont ()
	Return a specfic type of FontWithFace found in m_fonts.

void	checkFTError (FT_Error err, const std::string &desc) const
	Check for any error discovered in a freetype function that will return a FT_Error value, and log into the terminal.

bool	hasColorEmoji () const

FT_Library	getFTLibrary () const
	Return the m_ft_library.

FT_Face	loadColorEmoji ()

unsigned	getShapingDPI () const

void	shape (const std::u32string &text, std::vector< irr::gui::GlyphLayout > &gls, irr::u32 shape_flag=0)

std::vector< irr::gui::GlyphLayout > &	getCachedLayouts (const irr::core::stringw &str)

void	clearCachedLayouts ()

void	initGlyphLayouts (const irr::core::stringw &text, std::vector< irr::gui::GlyphLayout > &gls, irr::u32 shape_flag=0)
	Convert text to glyph layouts for fast rendering with (optional) caching enabled.

void	loadFonts ()
	Initialize all FaceTTF and FontWithFace members.

void	unitTesting ()
	Unit testing that will try to load all translations in STK, and discover if there is any characters required by it are not supported in m_normal_ttf.

Private Member Functions
std::vector< FT_Face >	loadTTF (const std::vector< std::string > &ttf_list)
	Load all TTFs from a list to m_faces.

Private Attributes
std::vector< FontWithFace * >	m_fonts
	Stores all FontWithFace used in STK.

FT_Library	m_ft_library
	A FreeType library, it holds the FT_Face internally inside freetype.

std::vector< FT_Face >	m_faces
	List of TTF files for complex text shaping.

FT_Face	m_digit_face
	TTF file for digit font in STK.

unsigned	m_shaping_dpi
	DPI used when shaping, each face will apply an inverse of this and the dpi of itself when rendering, so all faces can share the same glyph layout cache.

std::map< FT_Face, uint16_t >	m_ft_faces_to_index
	Map FT_Face to index for quicker layout.

std::map< irr::core::stringw, std::vector< irr::gui::GlyphLayout > >	m_cached_gls
	Text drawn to glyph layouts cache.

bool	m_has_color_emoji

hb_buffer_t *	m_hb_buffer

std::vector< hb_font_t * >	m_hb_fonts

std::unordered_map< std::type_index, int >	m_font_type_map
	Map type for each FontWithFace with a index, save getting time in getFont.

Detailed Description

This class stores all font files required in STK.

Constructor & Destructor Documentation

FontManager::FontManager ( )

Constructor.

It will initialize the m_ft_library.

FontManager::~FontManager ( )

Destructor.

Clears all fonts and related stuff.

void FontManager::checkFTError	(	FT_Error	err,
		const std::string &	desc
	)		const

inline

Check for any error discovered in a freetype function that will return a FT_Error value, and log into the terminal.

Parameters

err	The Freetype function.
desc	The description of what is the function doing.

std::vector< FT_Face > FontManager::loadTTF ( const std::vector< std::string > & ttf_list )

private

Load all TTFs from a list to m_faces.

Parameters

ttf_list List of TTFs to be loaded.

The documentation for this class was generated from the following files: