[Qt-interest] save QObject based classes in vector with auto delete functionality

[Malyushytsky, Alex]

>> I have a class derived from QThread (Classes which do Curve Fitting).
Now I want to save these Classes (which contain the fit results) in a
vector.

Don't mix classes and objects.

As far as I can recall QT3 had QPtrVector class, which does not exist in QT4.
So I believe there is no class which handles array of pointers.

But you can:
 - derive your class from  QValueVector< MyClass* > and add code to destructor to delete all pointers there.
    ( 1 loop 3 lines of the code )
 - instead of the raw pointer use guarded pointer like QPointer  http://doc.trolltech.com/4.5/qpointer.html
   (extra memory allocation, which might be undesired if you have large array)

Regards,
  Alex


-----Original Message-----
From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Matthias Pospiech
Sent: Monday, October 19, 2009 5:41 AM
To: Qt-interest
Subject: [Qt-interest] save QObject based classes in vector with auto delete functionality

I have a class derived from QThread (Classes which do Curve Fitting).
Now I want to save these Classes (which contain the fit results) in a
vector.

That has the principle problem that I cannot copy a QObject. I could
construct all classes as pointers and save only the pointers.
However I do not want to manually take care of the deletion.
Is there a Pointer class which I can use, which automatically takes care
of the deletion of the objects in the vector?

Matthias
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