Qt-jambi-interest Archive, November 2006
AW: QGraphicsItem parent/child with clipping
Message 1 in thread
> von Eskil A.Blomfeldt
> Cc: 'qt-jambi-interest@xxxxxxxxxxxxx'
>
>
> The bounding rect of the parent is in the parent's coordinate
> system and
> the painter is in the current item's coordinate system.
Thanks, that solved the problem.
But, now I have a new issue: whenever the scene is resized,
(say because an item was moved) the viewport changes it's
currently visible area slightly.
Is there a way to avoid it? I could set the size of the
scene to a really large value, but this seems a very dirty
way of dealing with this problem.
Best regards,
Lennart Steinke
Message 2 in thread
Lennart Steinke wrote:
>>von Eskil A.Blomfeldt
>>Cc: 'qt-jambi-interest@xxxxxxxxxxxxx'
>>
>>
>>The bounding rect of the parent is in the parent's coordinate
>>system and
>>the painter is in the current item's coordinate system.
>
>
> Thanks, that solved the problem.
>
> But, now I have a new issue: whenever the scene is resized,
> (say because an item was moved) the viewport changes it's
> currently visible area slightly.
>
> Is there a way to avoid it? I could set the size of the
> scene to a really large value, but this seems a very dirty
> way of dealing with this problem.
By default the view will try to view all the scene. You can avoid this
by setting a scene rectangle:
http://doc.trolltech.com/qtjambi-1.0/com/trolltech/qt/gui/QGraphicsScene.html#setSceneRect(double,%20double,%20double,%20double)
best regards,
Gunnar
