X Version 11 (Release 6.1)
xfd(X1)
xfd --
font displayer for X
Synopsis
xfd [-options ...] -fn fontname
Options
xfd accepts all of the standard toolkit command line
options along with the additional options listed below:
-fn font-
This option specifies the font to be displayed. This can also be set with
the FontGrid font resource. A font must be specified.
-box-
This option indicates that a box 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.
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).
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 for
ways to generate lists of fonts, as well as more detailed summaries
of their metrics and properties.
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.
Warnings
The program should skip over pages full of non-existent characters.
References
X(X1M),
xlsfonts(X1),
xrdb(X1)
X Logical Font Description Conventions
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004