Hi,

I am using a QTableView to display a table containing 3949 lines and 12 columns.

It's very long (>1 min).

I am using my own model named SKGObjectModel (derived from SKGObjectModelBase (derived from QAbstractItemModel)).

Here is a part of my analysis:
Qt Code: 
  1. ##methode                                             nb call   time in this method      average    %
  2. ##SKGObjectModel::data                                2682080        32612,7            0,01        38,43%
  3. ##SKGObjectModelBase::rowCount                        2683753        12215,9            0           14,39%
  4. ##SKGObjectModelBase::index                           2683717        11362,9            0           13,39%
  5. ##QAbstractItemModel::reset                                11        10761            978,27        12,68%
  6. ##SKGObjectModelBase::data                            2323211        9616,11            0          11,33%
  7. ##SKGObjectModelBase::headerData                       244223        3669,73            0,02        4,32%
  8. ##SKGServices::executeSelectSqliteOrder(QSqlDatabase)     114        1544,71           13,55        1,82%
  9. ##SKGServices::executeSqliteOrder(QSqlDatabase)           287        1207,02            4,21        1,42%
  10. ##SKGMainPanel::SKGMainPanel                                1        559,59           559,59        0,66%
  11. ##SKGMainPanel::setNewTabContent                            1        429,53           429,53        0,51%
  12. ##SKGObjectBase::getObjects                                37        383,36            10,36        0,45%
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As you can see, data rowCount and index are very performant (average ~ 0) but I have bad performances because of these methods are called to many times (~ 2 600 000 times).

Do you know why ?
What can I do to avoid this ?

In advance, thank you for your help.

PS: the code is there: http://skrooge.svn.sourceforge.net/viewvc/skrooge/