Make different regions of QLabel act differently, like an image map

[GTBuilder]

I had a similar scenario with a row of PushButtons that I wanted to change color as the mouse was over them. They were implemented flat in QTDesigner with mouseTracking set true. Text in a QLabel also changed depending on the PushButton under the cursor.

void Clone::mouseMoveEvent( QMouseEvent *event)
{
  int X = event->x();
  int Y = event->y();
 
  if( X > 0 && X < 160)
  {
    if( Y > 0 && Y < 80)
    {
      TWButton->setPalette( QColor( 255,255,255,255));
      textLabel->setText( twString);
    }
    else
      TWButton->setPalette( QColor( 0,170,255,255));
 
etc.

void Clone::mouseMoveEvent( QMouseEvent *event)
{
  int X = event->x();
  int Y = event->y();

  if( X > 0 && X < 160)
  {
    if( Y > 0 && Y < 80)
    {
      TWButton->setPalette( QColor( 255,255,255,255));
      textLabel->setText( twString);
    }
    else
      TWButton->setPalette( QColor( 0,170,255,255));

etc.

To copy to clipboard, switch view to plain text mode 

I'm sure you could accomplish the same thing with a group of QLabels merged together so they would look like a single object until changed by the cursor.