Is this intended, or shall I file a bug ? I really spent hours to trace why I was not able to place the titem_title QGraphicsTextItem at the proper position (decorating my items).

Hope it helps others and here is code that circumvents this limitation.

Qt Code: 
  1. void
  2. QGraphicsItemGroupDERIVED::update()
  3. {
  4. #define CERRD std::Cerr
  5.  
  6.       this->removeFromGroup( this->titem_title );
  7.  
  8.       QTransform t;
  9.  
  10.       t.setMatrix( this->transform().m11(), this->transform().m12(), 0, 0, 0, 0, 0, 0, 0 );
  11.  
  12.       this->titem_title->setTransform( t );
  13.  
  14.       this->titem_title->setPos( this->sceneBoundingRect().topLeft() );
  15.  
  16.       this->addToGroup( this->titem_title );
  17.  
  18.  
  19.  
  20.       CERRD << endl << "ITEM = " << this->name_get().toStdString() << endl;
  21.  
  22.       if( this->titem_title->sceneBoundingRect().topLeft() != this->sceneBoundingRect().topLeft() )
  23. 	{
  24. 	  CERRD << "*** WARNING *** setPos on titem failed." << endl;
  25. 	}
  26.  
  27.       CERRD << "item        actualpos = " <<        this->sceneBoundingRect().topLeft() << endl;
  28.       CERRD << "titem_title actualpos = " << titem_title->sceneBoundingRect().topLeft() << endl;
  29. }
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Cheers,
Murat