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cleanup: remove QPointer instances

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QPointer is a strange "smart" pointer class, which resets itself
when the pointed-to QObject is deleted. It does this by listening
to the corresponding signal and therefore is surprisingly heavy
for a plain pointer. A cynic would say that the existence of
QPointer is an expression of Qt's broken ownership model.

In any case, QPointer was only used at two places, were it was
100% useless: As a parameter to a function and as a locally scoped
pointer. It only makes sense if
a) there is a chance that the object disappears during the pointer's
   lifetime and
b) it is actually checked for null before use
None of which was the case here. Remove.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-12-13 13:44:44 +01:00 • committed by Dirk Hohndel
parent fa6eb6144b
commit dc37ba7758
3 changed files with 3 additions and 4 deletions
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1
desktop-widgets/btdeviceselectiondialog.h
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@ -4,7 +4,6 @@
#include <QDialog>
#include <QListWidgetItem>
#include <QPointer>
#include <QtBluetooth/QBluetoothLocalDevice>
#include <QtBluetooth/QBluetoothDeviceDiscoveryAgent>