Install event filter for custom widget hides the widget

[NewMoon]

Hello All,

I have a custom widget (MyCustomWidget), and inside MyCustomWidget, I have added a grid layout with some child widgets in it. Then I have added this MyCustomWidget in another QVBoxLayout.

I want to enable and disable the MyCustomWidget using mouse click. So I used install event filter for MyCustomWidget and the child widgets. If I use this install event filter then MyCustomWidget is not showing at all. If I remove the install event filter then the MyCustomWidget is showing.

Here's my code sample.

```
MyCustomWidget  *enableDisableWidget = new MyCustomWidget(this);
enableDisableWidget ->setObjectName("EnableOrDisableCusotmWidget");
enableDisableWidget ->installEventFilter(this);

MyCustomChildLabel  * myLabel  =  new MyCustomChildLabel (enableDisableWidget );
myLabel->setObjectName("CustomLabe1l");
myLabel->setText("Label1");
myLabel->setStyleSheet("color: black");
myLabel->installEventFilter(this);

MyCustomChildLabel  * myLabel1  = new MyCustomChildLabel  (enableDisableWidget);
myLabel1 ->setObjectName("CusotomLabel2");
myLabel1 ->setStyleSheet("color: black");
myLabel1 ->installEventFilter(this);

QGridLayout *lay = new QGridLayout;
lay ->addWidget(myLabel, 0, 0,1,1);
lay ->addWidget(myLabel1,0, 1,1,1);

enableDisableWidget->setLayout(lay);

Then I add this MyCusotmWidget to another QVBoxLayout where other QWidgets gets added to the layout.

QVBoxLayout *verticalLayout = new QVBoxLayout;
verticalLayout ->addWidget(new QPushButton("OK", this),1,Qt::AlignLeft);
verticalLayout ->addWidget(new QLineEdit(this), 1, Qt::AlignLefr;);
verticalLayout ->addWidget(enableDisableWidget,10,Qt::AlignLeft);

this->setLayout(verticalLayout);

The problem is, here MyCustomwidget is not shown in the verticalLayout. I can see the QPushButton and the QLineEdit, but not the MyCustomWidget. If I Remove the Install event filter for the MyCustomWidgets then it is shown. Please give me your suggestions.

[SGaist]

Hi,

Please show your implementation of the eventFilter method.

[NewMoon]

This post is deleted!

[NewMoon]

@SGaist

Here's my event filter function.

bool MyClass::eventFilter(QObject *obj, QEvent *evt)
{
    if(obj->parent() != NULL && obj->parent() == enableDisableWidget ) 
    {
        if(evt->type() == QEvent::MouseButtonPress)
        {
        if(enableDisableWidget ->isEnabled())
            enableDisableWidget->setEnabled(false);
        else 
            enableDisableWidget->setEnabled(true);
        }
        return false;
    }

    return QWidget::eventFilter(obj,evt);
}

[SGaist]

Since you are just changing the enable state, why aren't you letting the base class handle all the other events ?