[kln2-devel] prefs

[Carlo <si...@bl...>]

Hi,
now exercises save their own preferences, the implementation is a mix of
what Marek suggested and what I had in mind.
Basically KLearnNotes::saveOptions() loops trough exercises and ask them
to save preferences (if he wants :).
There is still a problem: sliders' position is not saved (in Staff and
PianoKeyboard). This happens because sliders are private and there
aren't funtions to get/set their position. This would require to
implement a saveOptions() function also in these classes, ToDo?


mmmm, I get so many warnings about missing KDE icons that I didn't even
care about crashes!
It seems like KLN is getting into another Segmentation Fault :/
If kln2 is not deleted the destroyer is not called, I think this is
because it is created with new (it is a pointer)
> prefs data is not saved --> for coherency we should call
klnPrefs->flush() in KLN::saveOptions() so data are written to file when
we ask to save them.

KLN crashes in the destructor, but not because of functions we put in
it. It crashes at the end of the destructor: when it executes code
inserted by the compiler. But computers never fail...
This is my stack:
??()
QPtrList<QCanvasRectangle>::deleteItem @ qptrlist.h:150
QGList::clear ()
QPtrList<QCanvasRectangle>::clear (this) @ qptrlist.h:93
~QPtrList (this) @ qptrlist.h:70
~PianoKeyboardKey (this) @ musicwidget.moc.cpp:139
QCanvas::~QCanvas ()
QWidget::~QWidget ()
~QFrame (this) @ guitartuner.cpp:36
~Exercise (this) @ exercise.cpp:176
~ExercisePianoToName (this) @ exe-piano_name.cpp:74
QWidget::~QWidget ()
QFrame::~QFrame ()
QWidget::~QWidget ()
QMainWindow::~QMainWindow ()
~KLearnNotes2 (this) @ klearnnotes2.cpp:741
main (argc=1, argv=[...]) @ main.cpp:196

I didn't understand very much... anyway, why doesn't PianoKeyboardKey
have a destructor?


Regards,
Carlo