QLineEdit cursor not vissible or blocked

[Alundra]

Hi all,
I have a custom Line editor who act as SliderLineEdit (like a spinbox horizontal without button).
All works fine but on the double click event I change ReadOnly to false to allow to edit value by hand and here comes the problem.
The problem is the text cursor is not visible until I use an arrow key (left or right) or I put a value by key.
Here the code of the double click event :

void CDoubleSliderLineEdit::mouseDoubleClickEvent( QMouseEvent* event )
{
  // Check if we are in read-only mode.
  if( isReadOnly() )
  {
    // Change states.
    setReadOnly( false );
    m_SliderMode = false;
 
    // Restore override cursor.
    QApplication::restoreOverrideCursor();
  }
  else
  {
    // Base class.
    QLineEdit::mouseDoubleClickEvent( event );
  }
}

void CDoubleSliderLineEdit::mouseDoubleClickEvent( QMouseEvent* event )
{
  // Check if we are in read-only mode.
  if( isReadOnly() )
  {
    // Change states.
    setReadOnly( false );
    m_SliderMode = false;

    // Restore override cursor.
    QApplication::restoreOverrideCursor();
  }
  else
  {
    // Base class.
    QLineEdit::mouseDoubleClickEvent( event );
  }
}

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I have to add m_SliderMode = false;, without it it's blocked like one mouse pressed but never released.
Thanks for the help