Pause functionality in Qt using QTimer on button press

Andrew

0 down vote favorite

I am trying to implement pause button for a game I am developing in Qt + OpenGL.

I want to implement it using QTimer. Basically I am updating screen per 100ms. So in order to pause game, I will stop the timer on button press. and when button is again pressed i will start the timer again

Here is my pauseOrPlay SLOT:
@
void Window::pauseOrPlay()
{
GLWidget::modifyTimer = TRUE;
GLWidget::isPaused = !GLWidget::isPaused;

GLWidget timerUpdater;
timerUpdater.timerFunc();
}
@

and Here is my timerFunc()

@
GLvoid GLWidget::timerFunc()
{
static QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(update()));

if( GLWidget::isPaused)
timer->start(100);
else
timer->stop();

}
@

But I am not getting the functionality. I get paused screen on this particular code and upon trying few tweaks here and there, sometimes I get screen updating very fastly which pointed me to this but I was unable to find cure to my problem somehow

This maybe bit naive question about Qt, so may be I am missing something very basic. Any help or Pointers??

mcosta

Hi,

in your code
@
void Window::pauseOrPlay()
{
GLWidget::modifyTimer = TRUE;
GLWidget::isPaused = !GLWidget::isPaused;

GLWidget timerUpdater;
timerUpdater.timerFunc();
}
@

object timerUpdate goes out of scope and the is destroyed

Andrew

yes, and due to this my @QTimer *timer@ was getting created everytime,

So what I did was:
made @QTimer *timer@ member of my class. on buttonpressed called a member function of my class and in that function did timer stop or start.

Thanks for the help though