Steps to reproduce:
In the arranger, have at least two Audio Tracks.
They must be tracks for which clicking on the mixer strip's in or out
routing buttons does in fact pop up a menu of some kind i.e. they are
routeable to each other.
Select one of the tracks. Click on either the 'out routes' or 'in routes'
button on the Arranger mixer strip.
The Routing popup menu should appear.
While the menu is open, click on /another/ track in the Arranger.
MusE will then crash with a segfault.
It happens because:
void AudioStrip::oRoutePressed()
{
RoutePopupMenu* pup = new RoutePopupMenu();
pup->exec(QCursor::pos(), track, true);
delete pup;
oR->setDown(false); // <<<<< Crash here, oR is zero <<<<<<<
}
While that popup menu is open and you switch to another track:
void Arranger::switchInfo(int n)
{
if (n == 2) {
AudioStrip* w = (AudioStrip*)(trackInfo->getWidget(2));
if (w == 0 || selected != w->getTrack()) {
if (w)
delete w; // <<<<<< It gets here <<<<<<<
w = new AudioStrip(trackInfo,
(MusECore::AudioTrack*)selected);
.....
}
I found that when you click on another track, switchInfo() is unfortunately
being called /before/ the routing popup menu is told to close by Qt.
(Why does that seem strange, that the menu is not told to close first?)
Thus as you can be my comments above, the result is effectively like having a:
delete this;
after the above
pup->exec(QCursor::pos(), track, true);
so it crashes st the indicated location above.
Weird, how do I get Qt to close the menu, /before/ it executes code
resulting from clicking /away/ from the menu?
Cheers.
Tim.
PS: Working on GUI stuff, hope to have something very interesting soon.
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