[Qt-interest] QGraphicsScene problem

[Scott Aron Bloom]

The timer is owned/constructed in one theread, and is being
started/stoped by the worker thread.

 

Try calling moveToThread to move the timers into the worker thread...

 

Scott

 

From: qt-interest-bounces at trolltech.com
[mailto:qt-interest-bounces at trolltech.com] On Behalf Of Patric
Sent: Saturday, August 29, 2009 1:11 AM
To: qt-interest at trolltech.com
Subject: [Qt-interest] QGraphicsScene problem

 

Hello guys, 

I have QGraphicsScene here with items on it. 

 

I have manual control (i.e. keyboard events) and also auto control
(through a thread which makes all the calculations where these
QPixmapItems should interact). 

 

When I control them, everything is OK. 

But when I start the auto control, i.e. my thread which simulates the
actions, I'm observing a very strange behaviour. It's a game actually,
it's turn based. 

So somethimes the objects on the board are just not moving on their
turns. 

 

I have implemented this simulation engine with the technique used in the
Mandelbrot example. 

 

In my MainWindow class I have instance of the engine thread, and when
some button in the GUI is pressed MainWindow calls a method in the
thread (directly), which wakes the thread. 

And I'm getting this shit : 

 

QObject::killTimer: timers cannot be stopped from another thread 

QObject::startTimer: timers cannot be started from another thread

QObject::killTimer: timers cannot be stopped from another thread

QObject::startTimer: timers cannot be started from another thread

QObject::killTimer: timers cannot be stopped from another thread

QObject::startTimer: timers cannot be started from another thread

 

Any ideas why ? 

 

Regards, 

Patric

 

p.s.:in the end of the thread's run method there is sleep call also. 

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