Qt-interest Archive, October 2007
QMouseEvent position on scrolling
Message 1 in thread
Hi,
I have a QGraphicsView with a scrollbar (scene is of bigger size than
view widget) and I am handling its mouse press events.
The location event->pos() does not consider scrolling and I do not get
the correct scene position, if I scroll the view.
The scene is anchored at the Topleft position of the view widget.
I currently add the scrolled offset the event->pos() to get actual scene
position.
It works but seems like a dirty hack and I am not sure if it will work
in all cases.
Any ideas on how to resolve this issue ?
R's
Prateek
Message 2 in thread
On 22/10/2007, at 12.02, Prateek Tiwari wrote:
> I have a QGraphicsView with a scrollbar (scene is of bigger size
> than view widget) and I am handling its mouse press events.
> The location event->pos() does not consider scrolling and I do not
> get the correct scene position, if I scroll the view.
> The scene is anchored at the Topleft position of the view widget.
>
> I currently add the scrolled offset the event->pos() to get actual
> scene position.
> It works but seems like a dirty hack and I am not sure if it will
> work in all cases.
Have you tried using mapToScene(event->pos()) ?
Frederik
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[ signature omitted ]
Message 3 in thread
Yes. But that doesnt work either :(
-----Original Message-----
From: Frederik Juul Christiani [mailto:juul@xxxxxxxxxxxxxxxxxxxxx]
Sent: Monday, October 22, 2007 5:38 PM
To: qt-interest@xxxxxxxxxxxxx
Subject: Re: QMouseEvent position on scrolling
On 22/10/2007, at 12.02, Prateek Tiwari wrote:
> I have a QGraphicsView with a scrollbar (scene is of bigger size than
> view widget) and I am handling its mouse press events.
> The location event->pos() does not consider scrolling and I do not get
> the correct scene position, if I scroll the view.
> The scene is anchored at the Topleft position of the view widget.
>
> I currently add the scrolled offset the event->pos() to get actual
> scene position.
> It works but seems like a dirty hack and I am not sure if it will work
> in all cases.
Have you tried using mapToScene(event->pos()) ?
Frederik
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[ signature omitted ]
