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List:       koffice-devel
Subject:    Re: kontour & QCanvas
From:       Nikolas Zimmermann <wildfox () kde ! org>
Date:       2001-07-25 7:22:48
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On Wednesday 25 July 2001 09:06, Werner Trobin wrote:
> On Wednesday 25 July 2001 08:53, Nikolas Zimmermann wrote:
> > On Wednesday 25 July 2001 08:39, Werner Trobin wrote:
> > > On Tuesday 24 July 2001 21:05, Igor Janssen wrote:
> > > > hi all!
> >
> > Hi,
Hi,
> >
> > > > I have idea to use QCanvas at kontour.
> > > > I think it will be better for speed
> > > > anyone know this stuff?
> > > > I want discuss this item
> > > >
> > > > I think QCanvas object will be at KontourDocument object and
> > > > QCanvasView at KontourView
> > > > I dont know about transformated objects...as I see QCanvas dont
> > > > support drawing transformated objects
> > >
> > > Hi!
> > >
> > > Last time I checked QCanvas I found two problems which kept me from
> > > using it:
> > > - It doesn't (didn't?) support zooming at all. IIRC it does now, but
> > > last time I checked a zoomed view behaved really bad performance wise.
> > > - Printing isn't easy to get right (as in, nice output for images,...)
> > > - If you have a huge "paper" (e.g. A1 or so) the memory consumption is
> > > huge - Sometimes they seem to mix double/int which makes it harder to
> > > get it behave properly at different zoom levels.
> >
> > [ ] Yes you can count :)
>
> Hehehe, to my defense I have to say that I wrote that mail half asleep
> and before I sent it I just remembered the last two issues ;)
heh :P
>
> > where do they mix int/double ????
>
> QCanvasItem can be positioned using double coordinates. Some (or nearly
> all) of the derived classes use QPointArray, integer coordinates,... which
> is not a good idea, IMHO.
oh, didn't notice that before
Sorry

Bye
 Bye
  Niko

>
> Ciao,
> Werner
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-- 
Nikolas Zimmermann
wildfox@kde.org
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