XFD(1)			    General Commands Manual			XFD(1)



NAME
       xfd - display all the characters in an X font

SYNOPSIS
       xfd [-options ...] -fn fontname

       xfd [-options ...] -fa fontname

DESCRIPTION
       The  xfd utility creates a window containing the name of the font being
       displayed, a row of command buttons, several lines of text for display-
       ing  character  metrics, and a grid containing one glyph per cell.  The
       characters are shown in increasing order from left  to  right,  top  to
       bottom.	 The first character displayed at the top left will be charac-
       ter number 0 unless the -start option has been supplied in  which  case
       the character with the number given in the -start option will be used.

       The  characters	are displayed in a grid of boxes, each large enough to
       hold any single character in the font.  Each character glyph  is	 drawn
       using  the  PolyText16 request (used by the Xlib routine XDrawString16)
       or the XftDrawString32 routine, depending on whether  the  -fn  or  -fa
       option  was  given.   If	 the -box option is given, a rectangle will be
       drawn around each character, showing where an ImageText16 request (used
       by the Xlib routine XDrawImageString16) would cause background color to
       be displayed.

       The origin of each glyph is normally set so that the character is drawn
       in  the	upper  left hand corner of the grid cell.  However, if a glyph
       has a negative left bearing or an unusually large ascent,  descent,  or
       right bearing (as is the case with cursor font), some character may not
       appear in their own grid cells.	The -center  option  may  be  used  to
       force all glyphs to be centered in their respective cells.

       All  the	 characters in the font may not fit in the window at once.  To
       see the next page of glyphs, press the Next button at the  top  of  the
       window.	 To  see  the  previous	 page, press Prev.  To exit xfd, press
       Quit.

       Individual  character  metrics  (index,	width,	bearings,  ascent  and
       descent)	 can  be displayed at the top of the window by clicking on the
       desired character.

       The font name displayed at the top of the window is the	full  name  of
       the  font,  as  determined by the server.  See xlsfonts and fc-list for
       ways to generate lists of fonts, as well as more detailed summaries  of
       their metrics and properties.

OPTIONS
       xfd accepts all of the standard toolkit command line options along with
       the additional options listed below:

       -fn font
	       This option specifies the core X server side font  to  be  dis-
	       played.	 This can also be set with the FontGrid font resource.
	       A font must be specified.

       -fa font
	       This option specifies a Xft font to be displayed. This can also
	       be  set with the FontGrid face resource. A font pattern must be
	       specified.

       -box    This option indicates that a box should be displayed  outlining
	       the  area  that	would  be  filled  with background color by an
	       ImageText request.  This can also be set with the FontGrid box-
	       Chars resource.	The default is False.

       -center This option indicates that each glyph should be centered in its
	       grid.  This can also  be	 set  with  the	 FontGrid  centerChars
	       resource.  The default is False.

       -start number
	       This  option  specifies	the glyph index of the upper left hand
	       corner of the grid.  This is used to view characters  at	 arbi-
	       trary  locations	 in  the  font.	 This can also be set with the
	       FontGrid startChar resource.  The default is 0.

       -bc color
	       This option specifies the color to be used if  ImageText	 boxes
	       are  drawn.   This  can	also be set with the FontGrid boxColor
	       resource.

       -rows numrows
	       This option specifies the number of rows in the grid.  This can
	       also be set with the FontGrid cellRows resource.

       -columns numcols
	       This  option specifies the number of columns in the grid.  This
	       can also be set with the FontGrid cellColumns resource.

WIDGETS
       In order to specify resources, it is useful to know the	widgets	 which
       compose xfd.  In the notation below, indentation indicates hierarchical
       structure.  The widget class name is given first, followed by the  wid-
       get instance name.  The application class name is Xfd.

       Xfd  xfd
	    Paned  pane
		 Label	fontname
		 Box  box
		      Command  quit
		      Command  prev
		      Command  next
		 Label	select
		 Label	metrics
		 Label	range
		 Label	start
		 Form  form
		      FontGrid	grid

FONTGRID RESOURCES
       The  FontGrid  widget is an application-specific widget, and a subclass
       of the Simple widget  in	 the  Athena  widget  set.   The  effects  and
       instance names of this widget's resources are given in the OPTIONS sec-
       tion.  Capitalize the first letter of the resource instance name to get
       the corresponding class name.

APPLICATION SPECIFIC RESOURCES
       The  instance  names  of	 the  application specific resources are given
       below.  Capitalize the first letter of the resource  instance  name  to
       get  the	 corresponding class name.  These resources are unlikely to be
       interesting unless you are localizing xfd for a different language.

       selectFormat
	       Specifies a printf-style format string used to display informa-
	       tion  about  the selected character.  The default is "character
	       0x%02x%02x (%u,%u) (%#o,%#o)".  The arguments  that  will  come
	       after the format string are char.byte1, char.byte2, char.byte1,
	       char.byte2, char.byte1, char.byte2.  char.byte1 is  byte	 1  of
	       the  selected  character.  char.byte2 is byte 2 of the selected
	       character.

       metricsFormat
	       Specifies a printf-style format string used to display  charac-
	       ter  metrics.   The  default  is	 "width %d; left %d, right %d;
	       ascent %d, descent %d (font %d, %d)".  The arguments that  will
	       come  after  the format string are the character metrics width,
	       lbearing, rbearing, character ascent, character	descent,  font
	       ascent, and font descent.

       rangeFormat
	       Specifies  a  printf-style  format  string  used to display the
	       range of characters currently being displayed.  The default  is
	       "range: 0x%02x%02x (%u,%u) thru 0x%02x%02x (%u,%u)".  The argu-
	       ments that will come after the format string are the  following
	       fields  from  the XFontStruct that is returned from opening the
	       font:	  min_byte1,	   min_char_or_byte2,	    min_byte1,
	       min_char_or_byte2,   max_byte1,	max_char_or_byte2,  max_byte1,
	       max_char_or_byte2.

       startFormat
	       Specifies a printf-style format string used to display informa-
	       tion  about  the character at the upper left corner of the font
	       grid.  The default is "upper left: 0x%04x (%d,%d)".  The	 argu-
	       ments  that will come after the format string are the new char-
	       acter, the high byte of the new character, and the low byte  of
	       the new character.

       nocharFormat
	       Specifies  a  printf-style  format  string  to display when the
	       selected character does not exist.  The	default	 is  "no  such
	       character  0x%02x%02x  (%u,%u)  (%#o,%#o)".  The arguments that
	       will come after the format string  are  the  same  as  for  the
	       selectFormat resource.

SEE ALSO
       X(7),  xlsfonts(1),  xrdb(1), xfontsel(1), fc-list(1), fonts.conf(5), X
       Logical Font Description Conventions

BUGS
       The program should skip over pages full of non-existent characters.

AUTHOR
       Jim Fulton, MIT X Consortium; previous program of the same name by Mark
       Lillibridge, MIT Project Athena.




X Version 11			   xfd 1.1.0				XFD(1)