why QListWidget can't get QEvent::MouseButtonPress?

[to_guliang]

:o
There are three different kinds of widgets in my project: List(QListWidget), Label(QLabel) and some pushbuttons.
And i don't want the List receive any mouse event. thanks for any advice.

[spirit]

install event filter for your listWidget and ignore all mouse events.

[to_guliang]

I have tried two methods, but don't succeed.
the one of them:
Register the List with the target object by calling installEventFilter() on the target:

list->installEventFilter(this);

Then handle the mouse events in the monitor's eventFilter() function.

bool ProgramList::eventFilter(QObject *target, QEvent *event)
{
if(target == list)
{ printf("\nevent->type() = %d\n",event->type());
if(event->type() == QEvent::MouseButtonPress)
{
event->ignore();
return true;
}
}
return QWidget::eventFilter(target, event);
}

But the event type have't "MouseButtonPress" at all when i click the List.
but if i call installEventFilter() for the label or the pushbutton, there is "MouseButtonPress" .
i don't know why, please help me. thanks very much!

[spirit]

try this


list->viewport()->installEventFilter(this);
....
bool ProgramList::eventFilter(QObject *target, QEvent *event)
{
if(target == list->viewport())
{ printf("\nevent->type() = %d\n",event->type());
if(event->type() == QEvent::MouseButtonPress)
{
event->ignore();
return true;
}
}
return QWidget::eventFilter(target, event);
}

[to_guliang]

the other method:
I Reimplement mousePressEvent(), the code as following:
the code in .h:

void mousePressEvent(QMouseEvent *event);
the code in .cpp:

void ProgramList::mousePressEvent(QMouseEvent *event)
{
QWidget::mousePressEvent(event);
if( )//the condition:the position is in the List
{
event->ignore();
}
else event->accept();
}

Then i find the function "mousePressEvent" don't excute when i click the list ; but it excute when i click the Label.
There must be something wrong in my program. it's so nice for you to point it out and give me the correct code. thanks very much.

[spirit]

installing event filter on a litwidget's viewport should fix you problem.
use my example in prev.post.

[to_guliang]

:) :p
thanks very much!!
it works!