Re: drop shadow

[Lars Clausen <lars raeder dk>]

On Jul 26, 2008, at 1:27 AM, Abhijit Menon-Sen wrote:

> Hi.
>
> At 2008-05-07 22:06:01 +0200, lars raeder dk wrote:
> > > this is probably the dummest question one can ask but
> > > I was not figure out to find the option to enable
> > > shadows on shapes. [...]
> >
> > Ah, but the About picture is a fake:) There is no such option at the
> > moment, but a lot of people would applaud whoever were to implement  
> > it.
>
> I need drop shadows too, and although I'm not really familiar with Dia
> or GTK, I would like to at least try to implement them, if anyone has
> advice about how best to proceed.

Take a look at how highlighting is done, you may be able to adapt the  
method to drop shadows, i.e. have a round of drawing drop shadows for  
those objects that have them before the round of drawing the objects  
themselves. However, some exporters may have a different idea of how  
drop shadows are best represented. Since highlighting isn't exported,  
the highlight algorithm doesn't have that problem.

> Could it be done with a Python plugin, perhaps?

I'll leave that for Hans to answer.

-Lars