class TTF


TTF

Interface to the freetype 2 library.

Function Members (Methods)

public:

	TTF()
	TTF(const TTF&)
virtual	~TTF()
static Short_t	CharToUnicode(UInt_t code)
static TClass*	Class()
static void	Cleanup()
static Int_t	GetAscent()
static const FT_BBox&	GetBox()
static TTGlyph*	GetGlyphs()
static Bool_t	GetHinting()
static Bool_t	GetKerning()
static Int_t	GetNumGlyphs()
static FT_Matrix*	GetRotMatrix()
static Bool_t	GetSmoothing()
static void	GetTextAdvance(UInt_t& a, char* text)
static void	GetTextExtent(UInt_t& w, UInt_t& h, char* text)
static Int_t	GetWidth()
static void	Init()
virtual TClass*	IsA() const
static Bool_t	IsInitialized()
static void	LayoutGlyphs()
TTF&	operator=(const TTF&)
static void	PrepareString(const char* string)
static void	SetHinting(Bool_t state)
static void	SetKerning(Bool_t state)
static void	SetRotationMatrix(Float_t angle)
static void	SetSmoothing(Bool_t state)
static void	SetTextFont(Font_t fontnumber)
static Int_t	SetTextFont(const char* fontname, Int_t italic = 0)
static void	SetTextSize(Float_t textsize)
virtual void	ShowMembers(TMemberInspector& insp)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
static void	Version(Int_t& major, Int_t& minor, Int_t& patch)

Data Members

public:

enum {	kTTMaxFonts
	kMaxGlyphs
};

private:

static Int_t	fgAscent	string ascent, used to compute Y alignment
static FT_BBox	fgCBox	string control box
static void*	fgCharMap[32]	font character map
static Int_t	fgCurFontIdx	current font index
static void*	fgFace[32]	font face
static Int_t	fgFontCount	number of fonts loaded
static char*	fgFontName[32]	font name
static TTGlyph	fgGlyphs[1024]	glyphs
static Bool_t	fgHinting	use hinting (true by default)
static Bool_t	fgInit	true if the Init has been called
static Bool_t	fgKerning	use kerning (true by default)
static void*	fgLibrary	FreeType font library
static Int_t	fgNumGlyphs	number of glyphs in the string
static FT_Matrix*	fgRotMatrix	rotation matrix
static Bool_t	fgSmoothing	use anti-aliasing (true when >8 planes, false otherwise)
static Int_t	fgSymbItaFontIdx	Symbol italic font index
static Int_t	fgTBlankW	trailing blanks width
static Int_t	fgWidth	string width, used to compute X alignment

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

~TTF()

 Cleanup TTF environment.

void Init()

 Initialise the TrueType fonts interface.

void Cleanup()

 Cleanup. Is called by the gCleanupTTF destructor.

Short_t CharToUnicode(UInt_t code)

 Map char to unicode. Returns 0 in case no mapping exists.

void GetTextExtent(UInt_t& w, UInt_t& h, char* text)

 Get width (w) and height (h) when text is horizontal.

void GetTextAdvance(UInt_t& a, char* text)

 Get advance (a) when text is horizontal.

void LayoutGlyphs()

 Compute the glyps positions, fgAscent and fgWidth (needed for alignment).
 Perform the Glyphs transformation.
 Compute the string control box.
 If required take the "kerning" into account.
 SetRotation and PrepareString should have been called before.

void PrepareString(const char* string)

 Put the characters in "string" in the "glyphs" array.

void SetHinting(Bool_t state)

 Set hinting flag.

void SetKerning(Bool_t state)

 Set kerning flag.

void SetRotationMatrix(Float_t angle)

 Set the rotation matrix used to rotate the font outlines.

void SetSmoothing(Bool_t state)

 Set smoothing (anti-aliasing) flag.

Int_t SetTextFont(const char* fontname, Int_t italic = 0)

 Set text font to specified name.
 font       : font name
 italic     : the fonts should be slanted. Used for symbol font.

 Set text font to specified name. This function returns 0 if
 the specified font is found, 1 if not.

void SetTextFont(Font_t fontnumber)

 Set specified font.
 List of the currently supported fonts (screen and PostScript)

   Font ID       X11                        TTF
        1 : times-medium-i-normal       timesi.ttf
        2 : times-bold-r-normal         timesbd.ttf
        3 : times-bold-i-normal         timesi.ttf
        4 : helvetica-medium-r-normal   arial.ttf
        5 : helvetica-medium-o-normal   ariali.ttf
        6 : helvetica-bold-r-normal     arialbd.ttf
        7 : helvetica-bold-o-normal     arialbi.ttf
        8 : courier-medium-r-normal     cour.ttf
        9 : courier-medium-o-normal     couri.ttf
       10 : courier-bold-r-normal       courbd.ttf
       11 : courier-bold-o-normal       courbi.ttf
       12 : symbol-medium-r-normal      symbol.ttf
       13 : times-medium-r-normal       times.ttf
       14 :                             wingding.ttf
       15 : symbol oblique is emulated from symbol.ttf

void SetTextSize(Float_t textsize)

 Set current text size.

void Version(Int_t& major, Int_t& minor, Int_t& patch)

Bool_t GetHinting()

Bool_t GetKerning()

Bool_t GetSmoothing()

Bool_t IsInitialized()

Int_t GetWidth()

Int_t GetAscent()

Int_t GetNumGlyphs()

FT_Matrix * GetRotMatrix()

const FT_BBox & GetBox()

TTGlyph * GetGlyphs()

TTF()

{ }