.TH GRAW 10.1
.SH NAME
graw \- gnot graphic editor
.SH SYNOPSIS
.B graw
[
.B -f
.I fontfile
]
[
.B -g
]
[
.I file ...
]
.SH DESCRIPTION
.PP
.I Graw
is a multi-file graphic editing program specialized for schematic entry.
.I Graw
drawings consist of lines, boxes, text objects, and instantiations of previously
defined drawings called
.I masters.
The
.I graw
user interface differs from that of most 5620/gnot programs in that button 1
controls
.I all
graphical entry.
.PP
The
.B -g
flag invokes an experimental mode in which
.B graw
attempts to render in grey scale.
The
.B -f
flag allows the user to specify a font for displaying text objects.
.PP
By default, pressing button 1 will create a line with one end fixed and the other
end attached to the cursor as long as button 1 is held down.  Objects other than
lines can be drawn by prefacing a drawing operation with a button 2
.B onesies\(->
selection.
Button 1 is also used for
.I grabbing
objects.  Grabbing takes precedence over drawing, and
.I graw
evaluates every button 1 hit to see if there is something to grab.
.PP
Grabbing rules vary by object.  For example, a box can be grabbed by pointing to
its interior.  A grabbed box will cause all objects inside or touching it to be
grabbed also.  Grabbing a box's corner will also grab objects touching the two
sides of that corner.  An object inside a box may be grabbed without grabbing
the box.
.I Graw's
grabbing rules are meant to be intuitively obvious.  The author apologizes for
cases in which this is not true.
.PP
.I Graw
keeps a "text point" at the last location of a button 1 hit.
Typing to
.I graw
creates a text object at the current text point.
A text object orients itself based on its surroundings each time it is typed
at or moved.
Typing a carriage return causes graw to move the current text point down one or
two ticks, depending on the surroundings.
.PP
Buttons 2 and 3 contain editing and file oriented menus, respectively.
The button 2 menu entries are
.B onesies\(-> (box, dots, macro),
.B inst\(->
.RI ( master
.IR list ),
.B sweep, slash, cut, paste,
and
.B scroll.
.RS
.TP
.B onesies\(->
selects a non-line object to be drawn with button 1.
You get at most one non-line object per onesie.
.TP
.B inst\(->
selects a master to be instantiated and attached to the cursor until any button
is pressed.
.TP
.B sweep
uses a rectangle input with button 1 (N.B.) to grab a set of objects and drag
them until any button is pressed.
.TP
.B slash
differs from
.B sweep
only in that rectilinear lines are first cut by the input rectangle.
.TP
.B cut
undraws and moves the object(s) last drawn or moved to the cut/paste buffer.
.TP
.B paste
attaches a copy of the cut/paste buffer to the cursor until any button is
pressed.
.TP
.B snarf
is a
.B cut
without the undraw.
.TP
.B scroll
attaches the entire drawing to the cursor until any button is pressed.
.RE
.PP
The button 3 menu entries are
.B edit, read, write, exit,
and
.B new,
followed by the list of filenames currently being edited.
.RS
.TP
.B edit
prompts for a file name and reads in the file for editing.  Backspace and
control-W may be used to edit the name; a null file name aborts the operation.
.TP
.B read
prompts for the name of a master file, reads it in, and plants a reference to
it in the current file.  The names of the masters in the file are added to
those in the
.B inst\(->
menu for the current file, overwriting older definitions if necessary.
.TP
.B write
prompts for a file name (starting with the current file name).  The non-null
result becomes the new file name and the file is written.
.TP
.B exit
terminates the program.  It may be necessary to type a character and/or move the
mouse after
.I graw
exits to really exit.
.TP
.B new
creates a new, unnamed drawing for editing.
.PP
Selecting a file name selects the current file.
.RE
.PP
.IR Gnet (10.1)
produces
.IR cdl_format (10.6)
files from
.I graw_format
files.
.SH FILES
.TF /lib/graw/analog.g
.TP
.B /lib/graw/gates.g
the standard gate file
.TP
.B /lib/graw/analog.g
analog parts file
.TP
.B /sys/font/1/7/PA
default font file
.SH SEE ALSO
.IR gnet (10.1),
.IR graw_format (10.6),
.IR cdmglob (10.1),
.IR grawp (10.1),
.IR annotate (10.1)
.SH BUGS
Doesn't handle parse errors well.
.br
Crashes when it reads two
.B 'e'
(end of master) lines in succession.