why QListWidget can't get QEvent::MouseButtonPress?

[to_guliang]

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);

list->installEventFilter(this);

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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);
   }

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);
   }

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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);
   }

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);
   }

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[to_guliang]

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

void mousePressEvent(QMouseEvent *event);

void mousePressEvent(QMouseEvent *event);

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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();
   }

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

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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]

thanks very much!!
it works!