[ChangeSet] print.m: support for figure handles

[Ben Abbott]

I modified print.m to support a figure handle as an input.

It is a trivial change, but permits printing as is often done (by me) in Matlab. For example,

   print (gcf, '-pdf', 'foo.pdf')

Please consider the attached changeset.

Ben
-------------- next part --------------
# HG changeset patch
# User Ben Abbott <bpabbott at mac.com>
# Date 1204297027 18000
# Node ID cebc5560d531bac7c10bc90cc955d1770d01f85d
# Parent  b84c5cbc081243fabec4026636f0c947c587c372
print.m: Figure handle as argument.

diff -r b84c5cbc0812 -r cebc5560d531 scripts/ChangeLog
--- a/scripts/ChangeLog	Fri Feb 29 04:09:03 2008 -0500
+++ b/scripts/ChangeLog	Fri Feb 29 09:57:07 2008 -0500
@@ -1,3 +1,7 @@ 2008-02-29  John W. Eaton  <jwe at octave.o
+2008-02-28  Ben Abbott <bpabbott at mac.com>
+
+	* plot/print.m: Modified to accept a figure handle as an optional input.
+ 
 2008-02-29  John W. Eaton  <jwe at octave.org>
 
 	* plot/print.m: Handle gif and jpg devices.
diff -r b84c5cbc0812 -r cebc5560d531 scripts/plot/print.m
--- a/scripts/plot/print.m	Fri Feb 29 04:09:03 2008 -0500
+++ b/scripts/plot/print.m	Fri Feb 29 09:57:07 2008 -0500
@@ -19,10 +19,14 @@
 
 ## -*- texinfo -*-
 ## @deftypefn {Function File} {} print (@var{filename}, @var{options})
+## @deftypefnx {Function File} {} print (@var{h}, @var{filename}, @var{options})
 ## Print a graph, or save it to a file
 ##
 ## @var{filename} defines the file name of the output file. If no
 ## filename is specified, output is sent to the printer.
+##
+## @var{h} specifies the figure handle. If no handle is specified
+## the handle for the current figure is used.
 ##
 ## @var{options}:
 ## @table @code
@@ -184,8 +188,10 @@ function print (varargin)
       elseif (length (arg) > 0)
 	name = arg;
       endif
+    elseif (ishandle (arg))
+      figure (arg);
     else
-      error ("print: expects string options");
+      error ("print: inputs must be string options, or a figure handle.");
     endif
   endfor