Hi, In my application I have two object type. One is field item, other is composite item. Composite items may contain two or more field items. Here is my composite item implementation.

#include "compositeitem.h"

CompositeItem::CompositeItem(QString id,QList<FieldItem *> _children)
{
   children = _children;
}

CompositeItem::~CompositeItem()
{
}

QRectF CompositeItem::boundingRect() const
{
  //Not carefully thinked about it
  return QRectF(QPointF(-50,-150),QSizeF(250,250));
}

void CompositeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,   QWidget *widget )
  {
   FieldItem *child;
   foreach(child,children)
   {
      child->paint(painter,option,widget);
   }
  }

  QSizeF CompositeItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
  {
   QSizeF itsSize(0,0);
   FieldItem *child;
   foreach(child,children)
   {
      // if its size empty set first child size to itsSize
      if(itsSize.isEmpty())
          itsSize = child->sizeHint(Qt::PreferredSize);
      else
      {
          QSizeF childSize = child->sizeHint(Qt::PreferredSize);
              if(itsSize.width() < childSize.width())
                  itsSize.setWidth(childSize.width());
              itsSize.setHeight(itsSize.height() + childSize.height());
      }
  }
  return itsSize;
     }

     void CompositeItem::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
     {
          qDebug()<<"Test";
     }

My first question is how I can propagate context menu event to specific child.

Picture on the above demonstrates one of my possible composite item.

If you look on the code above you will see that I print "Test" when context menu event occurs.

When I right click on the line symbol I see that "Test" message is printed. But when I right click on the signal symbol "Test" is not printed and I want it to be printed.

My second question what cause this behaviour. How do I overcome this.