[Interest] QComboBox inside in QTableWidget: How to disable mouse scrolling of QComboBox?

[Muthulingam Ammaiappan]

Hi All,

i have fixed this issue...

i have implemented the wheelEvent in the CustomComboBox class and ignore
the event...

void CustomComboBox::wheelEvent(QWheelEvent *e)

{

    e->ignore();

}


Thanks & Regards,
Muthu


On Tue, Feb 7, 2012 at 3:57 PM, Muthulingam Ammaiappan <
muthulingam.a at gmail.com> wrote:

> Hi Jaco,
>
> here i am not using QTableView ... i have the TableWidget class which is
> derived from "QTableWidget"... and i have implemented the eventFilter in
> TableWidget class...?
>
> let me know,what i is wrong with the eventFilter which i have implemented??
>
> Thanks & Regards,
> Muthu
>
>
>
> On Tue, Feb 7, 2012 at 3:53 PM, Jaco Naude <naude.jaco at gmail.com> wrote:
>
>> I think you must install the eventFilter on the viewport() of the table
>> view.
>> Did not test, it just a quick quess.
>>
>> On Tue, Feb 7, 2012 at 11:59 AM, Muthulingam Ammaiappan <
>> muthulingam.a at gmail.com> wrote:
>>
>>> Hi Friends,
>>>
>>> I have QTableWidget... it has "QComboBox" as a cellWidget in one of it
>>> column...
>>>
>>> I wanted to disable the ScrollEvent of QComboBox... so when cursor is on
>>> top of the QComboBox ,if user try to do the Mouse Scroll,then it should not
>>> change the index....
>>>
>>> To achieve this, I just implemented the "eventFilter" in TableWidget
>>> class.... but still ScrollEvent is working...
>>>
>>> can anyone please help me to fix this problem...?
>>>
>>>
>>> Thanks & Regards,
>>> Muthu
>>>
>>> code snippet:
>>>
>>> TableWidget::TableWidget(QWidget *parent, MainWindow *mainwindow)
>>>
>>>     : QTableWidget(parent)
>>>
>>> {
>>>
>>>         versioncombo->setFocusPolicy( Qt::StrongFocus);
>>>
>>>     versioncombo->installEventFilter( this );
>>>
>>>  }
>>>
>>>
>>>
>>> bool TableWidget::eventFilter(QObject *obj, QEvent *event)
>>>
>>> {
>>>
>>>     if(event->type() == QEvent::Wheel &&
>>>
>>>            qobject_cast<CustomComboBox*>(obj))
>>>
>>>         {
>>>
>>>             if(qobject_cast<CustomComboBox*>(obj)->focusPolicy() == Qt::WheelFocus)
>>>
>>>             {
>>>
>>>                 event->accept();
>>>
>>>                 return false;
>>>
>>>             }
>>>
>>>             else
>>>
>>>             {
>>>
>>>                 event->ignore();
>>>
>>>                 return true;
>>>
>>>             }
>>>
>>>         }
>>>
>>>         return QWidget::eventFilter(obj, event);
>>>
>>> }
>>>
>>>
>>>
>>>
>>> CustomComboBox::CustomComboBox(QWidget *parent)
>>>
>>>     : QComboBox(parent)
>>>
>>> {
>>>
>>>     setEditable (false);
>>>
>>>     setFocusPolicy(Qt::StrongFocus);
>>>
>>> }
>>>
>>>
>>>
>>> void CustomComboBox::focusInEvent(QFocusEvent*)
>>>
>>> {
>>>
>>>      setFocusPolicy(Qt::WheelFocus);
>>>
>>> }
>>>
>>>  void CustomComboBox::focusOutEvent(QFocusEvent*)
>>>
>>> {
>>>
>>>      setFocusPolicy(Qt::StrongFocus);
>>>
>>> }
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Interest mailing list
>>> Interest at qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>>>
>>>
>>
>>
>> --
>> Jaco Naude'
>>
>> Qtilities: Building blocks for Qt applications.
>> http://www.qtilities.org
>>
>>
>
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