Re: Automaticall open new diagram

["James K. Lowden" <jklowden schemamania org>]

On Thu, 25 Nov 2004 18:44:06 +0100 (CET), larsrc raeder dk wrote:
> Octavio Alvarez Piza sagde:
> > Hi. Why not a "dirty" flag? There might be one already there; I don't
> > remember if Dia asks me to save the file before closing if it was
> > changed since opened.
>
> It's there, in fact it's a bit more complex than just a flag by now:  We
> can actually notice that changes have been undone and mark it
> non-modified.  The check is diagram_modified(Diagram), AFAIR.  The
> 'virtual' flag is to indicate that this is a starting diagram that can
> be loaded into.  Wouldn't want a user to explicitly make a new diagram
> and then open another, only to find that the opened diagram 'ate' the
> new diagram.

Another way to look at that, fwiw, is 

        Virtual == !dirty && empty

That would mean that a diagram that had its contents deleted and saved
(hope that's clear) would recover its original virtualness.

--jkl