Re: [ROOT] Problems with TRootEmbeddedCanvas

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Oct 26 2001 - 22:04:58 MEST


Hi Brett,

I have localized the problem to be in the class TCanvas.
A few changes were made this week in the initialisation functions.
This has a side-effect. I will look into this problem.

Rene Brun

On Fri, 26 Oct 2001, Brett Viren wrote:

> Brett Viren writes:
>  > This problem can also be reproduced with test/guiviewer.
> 
> To be more specific, reproduce the problem via:
> 
>  - compile HEAD version of ROOT, compile test/guiviewer
>  - start guiviewer
>  - click on the shape buttons
>  - notice nothing shows up
>  - right click on the central canvas and (un) select "SetEditable"
>  - notice that the shapes show up
>  - try adding more shapes
>  - notice they aren't added
>  - select "SetEditable" again
>  - notice shapes all disapear
>  - click on shape buttons again
>  - unselect "SetEditable"
>  - notice the new shapes show up
> 
>  > Further strangeness is that SetEditable is explicitly kFALSE, yet when
>  > you use the context menu, SetEditable is selected.  Un-selecting it
>  > allows any past or future shapes to be displayed.
>  > 
>  > What changed?
> 
> I just checked v3-02/02 and things are working there.  I looked at the
> ChangeLog following this release but I didn't see anything glaringly
> obvious.  The last HEAD that I check out that worked was ca. Oct
> 17/18.
> 
> Experts?
> 
> -Brett.
> 
> PS: this is on x86 Debian GNU/Linux, gcc 2.95.
> 



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