hi i solve it, but only partly
Qt Code: 
  1. HandleItem::HandleItem( QGraphicsItem *item, QGraphicsScene *scene,
  2.                         QColor color, HandleItem::HandleRole role,
  3.                         QList<HandleItem*> handles ) : QGraphicsItem( 0, scene )
  4. {
  5.     m_role = role;
  6.     m_color = color;
  7.     m_item = item;
  8.     m_handles = handles;
  9.     m_pressed = false;
  10.     setZValue( 100 );
  11.     setFlag( ItemIsMovable );
  12. }
  13.  
  14. QRectF HandleItem::boundingRect() const
  15. {
  16.     QPointF point = m_item->boundingRect().center();
  17.     switch( m_role ){
  18.         case CenterHandle:
  19.             return QRectF( point-QPointF(5, 5), QSize( 10, 10 ) );
  20.         case RightHandle:
  21.             point.setX( m_item->boundingRect().right() );
  22.             return QRectF( point-QPointF(3, 5), QSize( 6, 10 ) );
  23.         case TopHandle:
  24.             point.setY( m_item->boundingRect().top() );
  25.             return QRectF( point-QPointF(5, 3), QSize( 10, 6 ) );
  26.     }
  27.     return QRectF();
  28. }
  29.  
  30. void HandleItem::paint( QPainter *paint, const QStyleOptionGraphicsItem *option, QWidget *widget )
  31. {
  32.     paint->setPen( m_color );
  33.     paint->setBrush( m_color );
  34.     QRectF rect = boundingRect();
  35.     QVector<QPointF> points;
  36.     switch( m_role ){
  37.         case CenterHandle:
  38.             paint->drawEllipse( rect );
  39.             break;
  40.         case RightHandle:
  41.             points << rect.center()+QPointF(3,0) << rect.center()+QPointF(-3,-5) << rect.center()+QPointF(-3,5);
  42.             paint->drawConvexPolygon( QPolygonF(points) );
  43.             break;
  44.         case TopHandle:
  45.             points << rect.center()+QPointF(0,-3) << rect.center()+QPointF(-5,3) << rect.center()+QPointF(5,3);
  46.             paint->drawConvexPolygon( QPolygonF(points) );
  47.             break;
  48.     }
  49. }
  50.  
  51. void HandleItem::mousePressEvent( QGraphicsSceneMouseEvent *event )
  52. {
  53.     m_pressed = true;
  54.     QGraphicsItem::mousePressEvent( event );
  55. }
  56. void HandleItem::mouseReleaseEvent( QGraphicsSceneMouseEvent *event )
  57. {
  58.     m_pressed = false;
  59.     QGraphicsItem::mouseReleaseEvent( event );
  60. }
  61.  
  62. QVariant HandleItem::itemChange( GraphicsItemChange change, const QVariant &data )
  63. {
  64.     if( change == ItemPositionChange && m_pressed ){
  65.         QPointF movement = data.toPoint() - pos();
  66.         QPointF center = m_item->boundingRect().center();
  67.         switch( m_role ){
  68.             case CenterHandle:
  69.                 m_item->moveBy( movement.x(), movement.y() );
  70.                 foreach( HandleItem *handle, m_handles )
  71.                     handle->translate( movement.x(), movement.y() );
  72.                 break;
  73.             case TopHandle:
  74.                 if( -2*movement.y() + m_item->sceneBoundingRect().height() <= 5 )
  75.                     return QGraphicsItem::itemChange( change, pos() );
  76.                 movement.setX( 0 );
  77.                 m_item->translate( center.x(), center.y() );
  78.                 m_item->scale( 1, 1.0-2.0*movement.y() /(m_item->sceneBoundingRect().height()) );
  79.                 m_item->translate( -center.x(), -center.y() );
  80.                 break;
  81.             case RightHandle:
  82.                 if( 2*movement.x() + m_item->sceneBoundingRect().width() <= 5 )
  83.                     return QGraphicsItem::itemChange( change, pos() );
  84.                 movement.setY( 0 );
  85.                 m_item->translate( center.x(), center.y() );
  86.                 m_item->scale( 1.0+2.0*movement.x()/(m_item->sceneBoundingRect().width()), 1 );
  87.                 m_item->translate( -center.x(), -center.y() );
  88.                 break;
  89.         }
  90.         return QGraphicsItem::itemChange( change, pos()+movement );
  91.     }
  92.     return QGraphicsItem::itemChange( change, data );
  93. }
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class:
Qt Code: 
  1. class HandleItem : public QGraphicsItem
  2. {
  3. public:
  4.     enum HandleRole { CenterHandle, RightHandle, TopHandle };
  5.  
  6.     HandleItem( QGraphicsItem *item, QGraphicsScene *scene,
  7.                 QColor color, HandleRole role = CenterHandle,
  8.                 QList<HandleItem*> handles = QList<HandleItem*>() );
  9.  
  10.     void paint( QPainter *paint, const QStyleOptionGraphicsItem *option, QWidget *widget );
  11.     QRectF boundingRect() const;
  12.  
  13. protected:
  14.     void mousePressEvent( QGraphicsSceneMouseEvent *event );
  15.     void mouseReleaseEvent( QGraphicsSceneMouseEvent *event );
  16.     QVariant itemChange( GraphicsItemChange change, const QVariant &data );
  17.  
  18. private:
  19.     QGraphicsItem *m_item;
  20.     HandleRole m_role;
  21.     QColor m_color;
  22.     QList<HandleItem*> m_handles;
  23.     bool m_pressed;
  24. };
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It is OK, but I dont know how translate coordition system to my item has CenterHandle, TopHandle and RightHandle at same pocition...
When I get mouseClick into my item CenterHandle, TopHandle and RightHandle are set well, I get mouse click next to my item CenterHandle, TopHandle and RightHandle are removed. It is OK. If I get mouseClick into my item CenterHandle, TopHandle and RightHandle are set and then I want to move my item. It is OK too. Then I click next to my item. It is OK. Then I want to move my item again, so I click into my item, but CenterHandle, TopHandle and RightHandle are set at first position(so I isnt in my item)

So I would like to ask, how I set translate or something else my item, when I change position of item.

Thanks a lot and sorry for my simple english