79 lines
3.3 KiB
Plaintext
79 lines
3.3 KiB
Plaintext
.TH XFD 1 "Release 5" "X Version 11"
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.SH NAME
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xfd \- display all the characters in an X font
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.SH SYNOPSIS
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.B xfd
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[\-options ...] \-fn \fIfontname\fP
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.SH DESCRIPTION
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The \fIxfd\fP utility creates a window containing the name of the font being
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displayed, a row of command buttons, several lines of text for displaying
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character metrics, and a grid containing one glyph per cell. The
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characters are shown in increasing order from left to right, top to
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bottom. The first character displayed at the top left will be character
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number 0 unless the \fB\-start\fP option has been supplied in which case the
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character with the number given in the \fB\-start\fP option will be used.
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.PP
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The characters are displayed in a grid of boxes, each large enough to hold
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any single character in the font. Each character glyph is drawn using
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the PolyText16 request (used by the \fIXlib\fP routine \fBXDrawString16\fP).
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If the \fB\-box\fP option is given, a rectangle will be drawn around each
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character, showing where an ImageText16 request (used by the \fIXlib\fP
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routine \fBXDrawImageString16\fP) would cause background color to be displayed.
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.PP
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The origin of each glyph is normally set so that the character is drawn in
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the upper left hand corner of the grid cell. However, if a glyph has a
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negative left bearing or an unusually large ascent, descent, or right bearing
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(as is the case with \fIcursor\fP font), some character may not appear in their
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own grid cells. The \fB\-center\fP option may be used to force all glyphs to
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be centered in their respective cells.
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.PP
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All the characters in the font may not fit in the window at once.
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To see the next page of glyphs, press the \fINext\fP button at the top
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of the window. To see the previous page, press \fIPrev\fP. To exit \fIxfd\fP,
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press \fIQuit\fP.
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.PP
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Individual character metrics (index, width, bearings, ascent and descent) can
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be displayed at the top of the window by pressing on the desired character.
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.PP
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The font name displayed at the top of the window is the full name of the
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font, as determined by the server. See \fIxlsfonts\fP for ways to generate
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lists of fonts, as well as more detailed summaries of their metrics and
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properties.
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.SH "OPTIONS"
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.PP
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.I xfd
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accepts all of the standard toolkit command line options along with
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the additional options listed below:
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.TP 8
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.B \-fn \fIfont\fP
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This option specifies the font to be displayed.
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.TP 8
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.B \-box
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This option indicates that a box should be displayed outlining the area
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that would be filled with background color by an ImageText request.
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.TP 8
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.B \-center
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This option indicates that each glyph should be centered in its grid.
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.TP 8
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.B \-start \fInumber\fP
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This option specifies the glyph index of the upper left hand corner of the
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grid. This is used to view characters at arbitrary locations in the font.
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The default is 0.
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.TP 8
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.B \-bc \fIcolor\fP
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This option specifies the color to be used if ImageText boxes are drawn.
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.SH "X DEFAULTS"
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To be written.
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.SH "SEE ALSO"
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X(1), xlsfonts(1), xrdb(1), xfontsel(1)
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.SH "BUGS"
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The program should skip over pages full of non-existent characters.
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.SH COPYRIGHT
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Copyright 1989, Massachusetts Institute of Technology.
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.br
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See \fIX(1)\fP for a full statement of rights and permissions.
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.SH AUTHOR
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Jim Fulton, MIT X Consortium; previous program of the same name by
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Mark Lillibridge, MIT Project Athena.
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