[Qt-interest] NoScrollBar is coming

[Sujan Dasmahapatra]

Thanks Mr John

On Thu, Aug 20, 2009 at 11:59 PM, John McClurkin <jwm at nei.nih.gov> wrote:

> Sujan Dasmahapatra wrote:
> > Mr John Thanks for information I think I understood the problem. Please
> > tell me one thing upto what extent maximum I can increase the size of
> > the scene ?? Thanks
> > Sujan
> I don't think that there is a maximum.
>
> >
> > On Thu, Aug 20, 2009 at 6:31 PM, John McClurkin <jwm at nei.nih.gov
>  > <mailto:jwm at nei..nih.gov>> wrote:
> >
> >     Sujan Dasmahapatra wrote:
> >      > Dear Mr Ferenc
> >      > I need to discuss something in this regard.When I create a
> >      > QGraphicsScene and a QGraphicsView, Do I need to do
> >      > QRectF rect;
> >      > scene->setSceneRect(rect);
> >      > view->setSceneRect(rect);
> >      >
> >      > What would be the optimized size of the rect  ???? According to my
> >      > implementation I haven't set SceneRect and by default
> >      > ""The default policy is
> >      > Qt::ScrollBarAsNeeded" for both directions..."
> >      >  So in my case when my object is going out of the view scrollbar
> >     should
> >      > come , why it's not coming ????
> >      >
> >      > I have read GraphicsView Framework still my doubt is
> >     under-development..
> >      > Could youhelp me in uderstanding these things .
> >      >
> >      > Thanks !!!!
> >      >
> >
> >     Sujan,
> >            You are manipulating objects in your QGraphicsScene and
> >     making them go
> >     out of the scene. However the QGraphicsScene has no visual
> properties,
> >     that is, it has no scrollbar. Only the QGraphicsView has scrollbars.
> The
> >     default behavior is to show scrollbars if the QGraphicsScene is
> larger
> >     than the QGraphicsView. Causing objects to move out of the scene does
> >     not automatically cause the scene to grow. Since the scene is always
> the
> >     same size as the view, the view does not show scrollbars. To get
> >     scrollbars to show, you need to change the size of the scene so that
> it
> >     fully includes the objects after you have manipulated them.
> >     _______________________________________________
> >     Qt-interest mailing list
> >     Qt-interest at trolltech.com <mailto:Qt-interest at trolltech.com>
> >     http://lists.trolltech.com/mailman/listinfo/qt-interest
> >
> >
> >
> >
> > --
> > Thanks & Regards
> > S. Dasmahapatra
> > B.E. (Aeronautics-Aerodynamics)
> > Bangalore, India
> > Ph:91-9900839788
> > Office:91-80-66470248
> > mail id : sujan.dasmahapatra at gmail.com <mailto:
> sujan.dasmahapatra at gmail.com>
>  _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
>



-- 
Thanks & Regards
S. Dasmahapatra
B.E. (Aeronautics-Aerodynamics)
Bangalore, India
Ph:91-9900839788
Office:91-80-66470248
mail id : sujan.dasmahapatra at gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20090821/323c3a4c/attachment.html