BUG? item.setPos( qpf ) not working when item is part of a QGraphicsItemGroup

[muenalan]

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.

void
QGraphicsItemGroupDERIVED::update()
{
#define CERRD std::Cerr
 
      this->removeFromGroup( this->titem_title );
 
      QTransform t;
 
      t.setMatrix( this->transform().m11(), this->transform().m12(), 0, 0, 0, 0, 0, 0, 0 );
 
      this->titem_title->setTransform( t );
 
      this->titem_title->setPos( this->sceneBoundingRect().topLeft() );
 
      this->addToGroup( this->titem_title );
 
 
 
      CERRD << endl << "ITEM = " << this->name_get().toStdString() << endl;
 
      if( this->titem_title->sceneBoundingRect().topLeft() != this->sceneBoundingRect().topLeft() )
	{
	  CERRD << "*** WARNING *** setPos on titem failed." << endl;
	}
 
      CERRD << "item        actualpos = " <<        this->sceneBoundingRect().topLeft() << endl;
      CERRD << "titem_title actualpos = " << titem_title->sceneBoundingRect().topLeft() << endl;
}

void
QGraphicsItemGroupDERIVED::update()
{
#define CERRD std::Cerr

      this->removeFromGroup( this->titem_title );

      QTransform t;

      t.setMatrix( this->transform().m11(), this->transform().m12(), 0, 0, 0, 0, 0, 0, 0 );

      this->titem_title->setTransform( t );

      this->titem_title->setPos( this->sceneBoundingRect().topLeft() );

      this->addToGroup( this->titem_title );
      


      CERRD << endl << "ITEM = " << this->name_get().toStdString() << endl;

      if( this->titem_title->sceneBoundingRect().topLeft() != this->sceneBoundingRect().topLeft() )
	{
	  CERRD << "*** WARNING *** setPos on titem failed." << endl;
	}

      CERRD << "item        actualpos = " <<        this->sceneBoundingRect().topLeft() << endl;
      CERRD << "titem_title actualpos = " << titem_title->sceneBoundingRect().topLeft() << endl;
}

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Cheers,
Murat

[wysota]

Could you provide a minimal compilable example reproducing the problem?