QTextEdit - disable paste()

[PePeL]

Hi all,

For 2 days I'm fighting with QTextEdit to disable pasting. I disabled Ctrl+P by keyPressEvent().
I don't know how to grab Middle Mouse Button (linux shortcut fo paste).

void Edytor::mousePressEvent ( QMouseEvent * e ) {
 
  if(e->button()==(Qt::MidButton)){
    qDebug()<<"middle";
    e->accept();
    return;
  };
  QTextEdit::mousePressEvent(e);
};

void Edytor::mousePressEvent ( QMouseEvent * e ) {

  if(e->button()==(Qt::MidButton)){
    qDebug()<<"middle";
    e->accept();
    return;
  };
  QTextEdit::mousePressEvent(e);
};

To copy to clipboard, switch view to plain text mode 

When I use above it shows 'middle' but also takes default action (pastes text).
Any idea?