[Qt-interest] How to solve grabmouse issue

[Ramesh]

No,
User doesn't press anything.. he just perform mouse operation in one
graphics item and soon after that
He will switch to another graphicsitem of same scene.. this situation may
arise right?

"How can I send mouse events to scene from the graphicsitem. Atlease can you
tell me that?" I can try
This last option

-----Original Message-----
From: qt-interest-bounces at trolltech.com
[mailto:qt-interest-bounces at trolltech.com] On Behalf Of
Oliver.Knoll at comit.ch
Sent: Wednesday, July 28, 2010 7:07 PM
To: qt-interest at trolltech.com
Subject: Re: [Qt-interest] How to solve grabmouse issue

Ramesh wrote on Wednesday, July 28, 2010 3:21 PM:

> Hi,
>
> I have two graphics item on a scene.. I require grabmouse for one
> graphicsitem, if I do any mouse operation on another graphics item it
> doesn't take mouse events at all..

Well, that's exactly the idea of "grabbing the mouse": only the "mouse
owner" (the one who grabbed the mouse) receives mouse events - unless the
mouse is released.

> I will not be having any idea that when user moves to second graphics
> item to ungrab the mouse from first graphics item.

Well, how should we know what your application requirements are, that is
when to release the mouse? That is part of your User Experience(tm)
Design(R) (yeah, finally I could use some fancy words here ;)

> How to handle this situation.

Re-think your user interaction: maybe the user is required to press "Esc"
(Escape) in order to release the mouse and return to normal interaction with
your application? That is up to you.

Cheers, Oliver
--
Oliver Knoll
Dipl. Informatik-Ing. ETH
COMIT AG - ++41 79 520 95 22
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