On Wed, 29 Mar 2000, [EMAIL PROTECTED] wrote:
> in 29 Mar 2000, Lars Clausen wrote:
>
>> 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 have loose plans of making a general canvas to replace the Gnome Canvas
> (about a million well-known gnome people wants Dia to use the Gnome
> Canvas, but I don't). Dia would then be ported to this canvas. Then i
> would need the renderer object to be very generic. Nothing in it that a
> Gtk renderer api couldn't have.
Oh, I did not know. So the renderer should not know anything about Object
at all. I can see the point. I think I'll have the Object know about its
selectedness then (which I think could also improve the running time of a
number of other routines).
-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
