ListWidget "How to check Mouse Event" when item has been clicked?

ademmler

Hi folks,

After an listwodget item has been clicked I want to check the mouse button, and react on the left/right button differently.
I have this code in my app. But since I added "QMouseEvent *e" to the function nothing happens any longer ...

void MyApp::on_listWidget_itemClicked(QMouseEvent *e)
{
   if (e->button() == Qt::LeftButton){
        int no = ui->listWidget->currentRow();
        QString cn = ui->listWidget->currentItem()->text();
        if( ui->listWidget->currentItem()->isSelected() ) {
            sendMessage("Item deactivated: " + cn + " Index :" + QString::number(no), msg_debug);
        } else {
            sendMessage("Item activated: " + cn + " Index :" + QString::number(no), msg_debug);
        }
    }
}

Regards Alex

jsulm

@ademmler said in ListWidget "How to check Mouse Event" when item has been clicked?:

QMouseEvent

For that you have to override https://doc.qt.io/qt-5/qwidget.html#mousePressEvent
See here how to do that: https://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html

mrjj

Hi
Just so its clear.

You cannot go around and add/change parameters to Widgets build in signals.

ItemClicked() signal is
on_listWidget_itemClicked(QListWidgetItem *item)

and if you change the parameter (item) then your slot will no longer be called.