TTF


class description - source file - inheritance tree

class TTF

    private:
static Short_t CharToUnicode(UInt_t code) static void LayoutGlyphs() static void PrepareString(const char* string) static void SetRotationMatrix(Float_t angle) public:
TTF TTF() TTF TTF(const TTF&) virtual void ~TTF() static TClass* Class() static void Cleanup() static Int_t GetAscent() static const FT_BBox& GetBox() const 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 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 SetHinting(Bool_t state) static void SetKerning(Bool_t state) static void SetSmoothing(Bool_t state) static void SetTextFont(Font_t fontnumber) static Int_t SetTextFont(const char* fontname) static void SetTextSize(Float_t textsize) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) static void Version(Int_t& major, Int_t& minor, Int_t& patch)

Data Members

    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 Int_t fgFontCount number of fonts loaded static char* fgFontName[32] font name static void* fgFace[32] font face 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 fgTBlankW trailing blanks width static Int_t fgWidth string width, used to compute X alignment public:
static const enum TTF:: kTTMaxFonts static const enum TTF:: kMaxGlyphs

Class Description

                                                                      
 TTF                                                                  
                                                                      
 Interface to the freetype 2 library.                                 
                                                                      


~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 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)
 Set text font to specified name.
 font       : font name

 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

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()



Inline Functions


                TTF TTF()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
                TTF TTF(const TTF&)


Author: Olivier Couet 01/10/02
Last update: root/graf:$Name: $:$Id: TTF.cxx,v 1.1 2003/01/22 11:07:26 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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