On Wed, 29 Mar 2000, [EMAIL PROTECTED] wrote:
> On 29 Mar 2000, Lars Clausen wrote:
>
>>
>> In todays CVS Newsreport, we look at todays newest features in Dia. The
>> Bezierlines are getting an overhaul, with a different creation scheme
>> and guidelines that actually disappear when the line is not selected. A
>> spokesman says 'This required some lower-level changes, such as adding a
>> pen_up field to renderer and a toggle_guide render_op.
>
> Why did you have to export the pen_up field? It doesn't need to be read
> from anywhere else, so it could go into the renderer implementation
> (RendererGdk).
>
> Also, I'm not sure if this is the right way to do this. I think it would
> be better if the object itself could somehow see it it was selected. Then
> all the drawing logic goes into the object, and no modifications to the
> renderer is needed.
I was planning to have it in the other renderers, too. The idea is to have
the objects know less about the renderers. Right now, the guide lines are
drawn only for interactive renderers. I prefer to have the object tell the
renderer 'This is a guide line', and the renderer decides what to do with
it. I thought about having the object know whether it was selected, but
was worried about doing 'double accounting', and what would happen if the
two got out of synch.
-Lars
--
Lars Clausen (http://shasta.cs.uiuc.edu/~lrclause) | H�rdgrim of Numenor
"I do not agree with a word that you say, but I | Retainer of Sir Kegg
will defend to the death your right to say it." | of Westfield
--Evelyn Beatrice Hall paraphrasing Voltaire | Chaos Berserker of Khorne
