Re: [ROOT] ROOT & Qt, Swing, GUIs, Graphics Abstraction

From: Valeri Fine (fine@bnl.gov)
Date: Wed Oct 31 2001 - 19:53:53 MET


----- Original Message ----- 
From: "Brett Viren" <bv@bnl.gov>
To: "Valeri Fine" <fine@bnl.gov>
Cc: <roottalk@pcroot.cern.ch>
Sent: Wednesday, October 31, 2001 8:54 AM
Subject: Re: [ROOT] ROOT & Qt, Swing, GUIs, Graphics Abstraction


> Valeri Fine writes:
>  >      Qt provides very attractive base class QCanvasItem:
>  > 
>  >      http://doc.trolltech.com/3.0/qcanvasitemlist.html
>  >      http://doc.trolltech.com/3.0/qcanvasitem.html
> 
> I get a little nervous when QCanvas is suggested as something to
> emulate.  I works okay for some things but the fact that it is integer
> pixel based makes it difficult to use for things like event displays.
> The user must take care of the world coordinate abstraction.
> 

  I am begging a pardon for some confusion.
  I think you may sleep well ( tonight at least) 
  I believe nobody is going to anything with TCanvasImp via QCanvas
  ( overnight commit ::-)

                  Valeri



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