Provided by: x11-utils_7.6+3_i386 bug

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
       displaying 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
       character 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
               displayed.  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
               boxChars 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
               arbitrary 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
       widget 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
       section.   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
               information 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
               character 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
               arguments  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
               information about the character at the upper left corner of the
               font  grid.   The default is "upper left: 0x%04x (%d,%d)".  The
               arguments that will come after the format string  are  the  new
               character, 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.