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From: ajcd@lfcs.ed.ac.uk (Angus Duggan)
Newsgroups: comp.windows.news
Subject: Re: BLowing up Psview
Summary: I've done it, and will post or mail if anyone wants it.
Keywords: psview dvi dvilaser/ps
Message-ID: <439@castle.ed.ac.uk>
Date: 19 Sep 89 11:21:43 GMT
References: <4349@emory.mathcs.emory.edu>
Sender: root@castle.ed.ac.uk
Reply-To: ajcd@lfcs.ed.ac.uk (Angus Duggan)
Followup-To: comp.windows.news
Organization: Laboratory for the Foundations of Computer Science, University of Edinburgh
Lines: 28
In-reply-to: km@mathcs.emory.edu (Ken Mandelberg)

Yes, I've not only thought about it, I've done it. The local version of psview
has scroll bars, enlarge and reduce (by a fixed factor, but multiple
enlargements/reductions are possible), European page sizes specifiable from
the command line (by the -a[0-6] switch), and a hack to allow previewing of
postscript files produced by ArborText's DVILASER/PS (version 4.0.6) dvi
converter. There is also a box facility, which you can use to draw a frame
around any part of the picture, and the dimensions and offset of the frame will
be displayed in inches, centimetres, or PostScript points (1/72 in).
The dvi hack requires an altered prologue for DVILASER/PS, and a
simple program (called psmung) to make the output PostScript closer to
conforming PostScript (however, ArborText has said that the latest version of
DVILASER/PS will produce conforming files).

If there is enough interest, I will post diffs to psview, and the other
required parts for dvi previewing. I am prepared to mail this stuff out to
individuals also, but please be patient, I am very busy just now.

Warning: altering psview was the first time I used LiteItems, or tried to do
anything much with overlay canvases, so the code is probably pretty grotty. I
had one problem with overlay canvases, which was that I couldn't reshape them,
and had to create a new one each time they needed reshaping. Is this a known
problem, or am I just doing it wrong?

	Angus
Angus Duggan, Department of Computer Science,	| (C) AJCD 1989
University of Edinburgh, JCMB,			| USENET: ajcd@lfcs.ed.ac.uk
The King's Buildings, Mayfield Road,		| JANET:  ajcd@uk.ac.ed.lfcs
Edinburgh, EH9 3JZ, Scotland.	| OR:  ajcd%lfcs.ed.ac.uk@nsfnet-relay.ac.uk