Re: [Rosegarden-devel] kde4, was Re: FYI : yet another guy with grand plans and no clue

[Guillaume L. <gla...@te...>]

On Thursday 21 June 2007, Chris Cannam wrote:
> On Tuesday 19 June 2007 23:10, Guillaume Laurent wrote:
> > On Tuesday 19 June 2007, Alexandre Prokoudine wrote:
> > > Second question is about KDE4. Are you planning to port RG when KDE 4
> > > is out or when it goes beta?
>
> Or neither?

When, then ?

> I presume it will be possible to run KDE4 applications under a KDE3
> desktop, provided the right libraries and things are in place somewhere?  I
> suppose it must be; otherwise it wouldn't be possible to run them under a
> non-KDE desktop.

Indeed AFAIK it's possible.

> But the point is that now that we've worked around them, it may be
> more work to un-work-around them than it would be to simply ignore
> QGraphicsView and continue to do our own thing with a widget -- which would
> probably still be faster, and would still permit us to use the nice new Qt4
> paint support for things like transparency if desired.

May be, but un-working-around these issues will probably mean to get rid of a 
hefty bit of code as well. 

> I may have some opportunity to test this, as it's possible I might soon
> have a chance to refactor RG's notation code for Qt4, for another (paid)
> project.  I hope so, because it would be an excellent opportunity to feed
> the results back into a future Qt4 Rosegarden, as well as think again about
> all the things I'm always meaning to think again about, like voice support.
>  Just saying that again has probably jinxed it of course.

I'm keeping my fingers crossed. Testing on my side (regarding the segment 
canvas side) has quickly lead me to patch Qt itself to get the QGraphicsView 
rubberband to work correctly when scrolling :-). Funny how the same problems 
keep creeping up. Hopefully my patch will go in.

-- 
Guillaume.
http://telegraph-road.org