FontManager Class Reference

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

#include <font_manager.hpp>

Inheritance diagram for FontManager:

Public Member Functions
	FontManager ()
	Constructor. More...
	~FontManager ()
	Destructor. More...
template<typename T >
T *	getFont ()
	Return a specfic type of FontWithFace found in m_fonts. More...
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. More...
bool	hasColorEmoji () const
FT_Library	getFTLibrary () const
	Return the m_ft_library. More...
FT_Face	loadColorEmoji ()
unsigned	getShapingDPI () const
void	shape (const std::u32string &text, std::vector< irr::gui::GlyphLayout > &gls, std::vector< std::u32string > *line_data=NULL)
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, std::vector< std::u32string > *line_data=NULL)
	Convert text to glyph layouts for fast rendering with caching enabled If line_data is not null, each broken line u32string will be saved and can be used for advanced glyph and text mapping, and cache will be disabled, no newline characters are allowed in text if line_data is not NULL.
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. More...

Private Attributes
std::vector< FontWithFace * >	m_fonts
	Stores all FontWithFace used in STK. More...
FT_Library	m_ft_library
	A FreeType library, it holds the FT_Face internally inside freetype. More...
std::vector< FT_Face >	m_faces
	List of TTF files for complex text shaping. More...
FT_Face	m_digit_face
	TTF file for digit font in STK. More...
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. More...
std::map< FT_Face, uint16_t >	m_ft_faces_to_index
	Map FT_Face to index for quicker layout. More...
std::map< irr::core::stringw, std::vector< irr::gui::GlyphLayout > >	m_cached_gls
	Text drawn to glyph layouts cache. More...
bool	m_has_color_emoji
std::unordered_map< std::type_index, int >	m_font_type_map
	Map type for each FontWithFace with a index, save getting time in getFont. More...

Detailed Description

This class stores all font files required in STK.

Constructor & Destructor Documentation

FontManager()

FontManager::FontManager

(

)

Constructor.

It will initialize the m_ft_library.

~FontManager()

FontManager::~FontManager

(

)

Destructor.

Clears all fonts and related stuff.

Member Function Documentation

checkFTError()

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.

getFont()

template<typename T >

T* FontManager::getFont ( )

inline

Return a specfic type of FontWithFace found in m_fonts.

getFTLibrary()

FT_Library FontManager::getFTLibrary ( ) const

inline

Return the m_ft_library.

loadTTF()

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.

Member Data Documentation

m_cached_gls

std::map<irr::core::stringw, std::vector<irr::gui::GlyphLayout> > FontManager::m_cached_gls

private

Text drawn to glyph layouts cache.

m_digit_face

FT_Face FontManager::m_digit_face

private

TTF file for digit font in STK.

m_faces

std::vector<FT_Face> FontManager::m_faces

private

List of TTF files for complex text shaping.

m_font_type_map

std::unordered_map<std::type_index, int> FontManager::m_font_type_map

private

Map type for each FontWithFace with a index, save getting time in getFont.

m_fonts

std::vector<FontWithFace*> FontManager::m_fonts

private

Stores all FontWithFace used in STK.

m_ft_faces_to_index

std::map<FT_Face, uint16_t> FontManager::m_ft_faces_to_index

private

Map FT_Face to index for quicker layout.

m_ft_library

FT_Library FontManager::m_ft_library

private

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

m_shaping_dpi

unsigned FontManager::m_shaping_dpi

private

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.

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

• font/font_manager.hpp
• font/font_manager.cpp