TAttText


class description - source file - inheritance tree

class TAttText

    private:
protected:
public:
TAttText TAttText() TAttText TAttText(Int_t align, Float_t angle, Color_t color, Style_t font, Float_t tsize) TAttText TAttText(TAttText&) virtual void ~TAttText() static TClass* Class() void Copy(TAttText& atttext) Short_t GetTextAlign() const Float_t GetTextAngle() const Color_t GetTextColor() const Font_t GetTextFont() const Float_t GetTextSize() const virtual TClass* IsA() const virtual void Modify() virtual void ResetAttText(Option_t* toption) virtual void SaveTextAttributes(ofstream& out, const char* name, Int_t alidef = 12, Float_t angdef = 0, Int_t coldef = 1, Int_t fondef = 61, Float_t sizdef = 1) virtual void SetTextAlign(Short_t align = 11) virtual void SetTextAngle(Float_t tangle = 0) virtual void SetTextAttributes() virtual void SetTextColor(Color_t tcolor = 1) virtual void SetTextFont(Font_t tfont = 62) virtual void SetTextSize(Float_t tsize = 1) virtual void SetTextSizePixels(Int_t npixels) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members

    private:
protected:
Float_t fTextAngle Text angle Float_t fTextSize Text size Short_t fTextAlign Text alignment Color_t fTextColor Text color index Font_t fTextFont Text font number public:


See also

TButton, TDialogCanvas, TGaxis, TInspectCanvas, TLegend, TLegendEntry, TPaveLabel, TPaveText, TStyle, TText, TVirtualPS, TVirtualX

Class Description

*-*-*-*-*-*-*-*-*-*-*-*-*Text Attributes class*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      =====================
*-*  Text attributes are:
*-*    Text Alignment
*-*    Text Color
*-*    Text Font
*-*    Text Size
*-*    Text Angle
*-*
*-*  This class is used (in general by secondary inheritance)
*-*
*-*  by many other classes (graphics, histograms).
*-*    align : Text alignment = 10*HorizontalAlign + VerticalAlign
*-*            For Horizontal alignment the following convention applies:
*-*               1=left adjusted, 2=centered, 3=rigth adjusted
*-*            For Vertical alignment the following convention applies:
*-*               1=bottom adjusted, 2=centered, 3=top adjusted
*-*            For example align = 11 = left adjusted and bottom adjusted
*-*                        align = 32 = right adjusted and vertically centered
*-*    angle : Text angle in degrees
*-*    color : Text Color Index
*-*    font  : Text font code = 10*fontnumber + precision
*-*             Font numbers must be between 1 and 14
*-*             precision = 0 fast hardware fonts (steps in the size)
*-*             precision = 1 scalable and rotatable hardware fonts (see below)
*-*             precision = 2 scalable and rotatable hardware fonts
*-*             precision = 3 scalable and rotatable hardware fonts. Text size
*-*                           is given in pixels.
*-*    size  : Character size expressed in percentage of the current pad height
*-*            The textsize in pixels (say charheight) will be:
*-*             charheight = textsize*canvas_height if current pad is horizontal.
*-*             charheight = textsize*canvas_width  if current pad is vertical.
*-*             charheight = number of pixels if font precision is greater than 2
*-*
*-* Font quality and speed
*-* ======================
*-*  When precision 0 is used, only the original non-scaled system fonts
*-*  are used. The fonts have a minimum (4)  and maximum (37) size in pixels.
*-*  These fonts are fast and are of good quality. Their size varies with
*-*  large steps and they cannot be rotated.
*-*  Precision 1 and 2 fonts have a different behaviour depending if the
*-*  True Type Fonts are used or not. If TTF are used, you always get
*-*  very good quality scalable and rotatable fonts. However TTF are slow.
*-*  Precision 1 and 2 fonts have a different behaviour for Postscript
*-*  in case of TLatex objects. With precision 1, the Postscript text uses
*-*  the old convention (see TPostScript) for some special characters
*-*  to draw sub and superscripts or greek text.
*-*  With precision 2 the "PostScript" special characters are drawn as such.
*-*  To draw sub and superscripts it is highly recommended to use TLatex
*-*  objects instead.
*-*
*-*  How to use True Type Fonts
*-*  ==========================
*-*  You can activate the TTF by adding (or activating) the following line
*-*  in your .rootrc file.
*-*  Unix.*.Root.UseTTFonts:     true
*-*  WinNT  for NT
*-*  You can check that you indeed use the TTF in your Root session.
*-*  When the TTF is active, you get the following message at the start
*-*  of a session:
*-*    "FreeType Engine v1.x used to render TrueType fonts."
*-*  You can also check with the command gEnv->Print().
*-*
*-*  List of the currently supported fonts (screen and PostScript)
*-*  =============================================================
*-*   Font ID       X11                       Win32 TTF       lfItalic  lfWeight  x 10
*-*        1 : times-medium-i-normal      "Times New Roman"      1           4
*-*        2 : times-bold-r-normal        "Times New Roman"      0           7
*-*        3 : times-bold-i-normal        "Times New Roman"      1           7
*-*        4 : helvetica-medium-r-normal  "Arial"                0           4
*-*        5 : helvetica-medium-o-normal  "Arial"                1           4
*-*        6 : helvetica-bold-r-normal    "Arial"                0           7
*-*        7 : helvetica-bold-o-normal    "Arial"                1           7
*-*        8 : courier-medium-r-normal    "Courier New"          0           4
*-*        9 : courier-medium-o-normal    "Courier New"          1           4
*-*       10 : courier-bold-r-normal      "Courier New"          0           7
*-*       11 : courier-bold-o-normal      "Courier New"          1           7
*-*       12 : symbol-medium-r-normal     "Symbol"               0           6
*-*       13 : times-medium-r-normal      "Times New Roman"      0           4
*-*       14 :                            "Wingdings"            0           4
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

TAttText()
*-*-*-*-*-*-*-*-*-*-*-*-*AttText default constructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ===========================
*-*  Default text attributes are taking from the current style
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

TAttText(Int_t align, Float_t angle, Color_t color, Style_t font, Float_t tsize)
*-*-*-*-*-*-*-*-*-*-*-*-*AttText normal constructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ===========================
*-*  Text attributes are taking from the argument list
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

~TAttText()
*-*-*-*-*-*-*-*-*-*-*-*-*AttText destructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      =================

void Copy(TAttText &atttext)
*-*-*-*-*-*-*-*-*Copy this text attributes to a new atttext*-*-*-*-*-*-*-*-*
*-*              ==========================================

void Modify()
*-*-*-*-*-*-*-*-*-*Change current text attributes if necessary*-*-*-*-*-*-*
*-*                ===========================================

void ResetAttText(Option_t *)
*-*-*-*-*-*-*-*-*Reset this text attributes to default values*-*-*-*-*-*-*
*-*              ============================================

void SaveTextAttributes(ofstream &out, const char *name, Int_t alidef, Float_t angdef, Int_t coldef, Int_t fondef, Float_t sizdef)
 Save text attributes as C++ statement(s) on output stream out

void SetTextAttributes()
*-*-*-*-*-*-*-*-*Invoke the DialogCanvas Text attributes*-*-*-*-*-*-*
*-*              =======================================

void SetTextSizePixels(Int_t npixels)
 Set the text size in pixels.
 If the font precision is greater than 2, the text size is set to npixels,
 otherwise the text size is computed as a per cent of the pad size.



Inline Functions


            Short_t GetTextAlign() const
            Float_t GetTextAngle() const
            Color_t GetTextColor() const
             Font_t GetTextFont() const
            Float_t GetTextSize() const
               void SetTextAlign(Short_t align = 11)
               void SetTextAngle(Float_t tangle = 0)
               void SetTextColor(Color_t tcolor = 1)
               void SetTextFont(Font_t tfont = 62)
               void SetTextSize(Float_t tsize = 1)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
           TAttText TAttText(TAttText&)


Author: Rene Brun 12/12/94
Last update: root/base:$Name: $:$Id: TAttText.cxx,v 1.7 2001/03/01 13:34:27 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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