testlist::Child testlist::Parent::popBackChild() const {
Child result = getLastChild();
if(result.isValid())
{
result.removeParentHandler();
Child prev = result.getPrevParentChild();
result.setPrevParentChild(Child());
result.setNextParentChild(Child());
setLastChild(prev);
if(!prev.isValid())
setFirstChild(Child());
else
prev.setNextParentChild(Child());
setNumChilds(getNumChilds() - 1);
result.setParent(Parent());
}
return result;
}
Bool testlist::Parent::insertBeforeChild(const Child & child, const Child & next) const {
if(!child.isExists() ||
!next.isExists() ||
next.getParent() != *this ||
child.getParent().isValid())
return false;
Child prev = next.getPrevParentChild();
next.setPrevParentChild(child);
child.setNextParentChild(next);
child.setPrevParentChild(prev);
if(prev.isValid())
prev.setNextParentChild(child);
else
setFirstChild(child);
child.setParent(*this);
setNumChilds(getNumChilds() + 1);
child.setupParentHandler();
return true;
}
Bool testlist::Parent::removeChild(const Child & child) const {
if( !child.isExists() || child.getParent() != *this)
return false;
child.removeParentHandler();
Child next = child.getNextParentChild(), prev = child.getPrevParentChild();
if(next.isValid())
next.setPrevParentChild(prev);
else if (getLastChild() == child)
setLastChild(prev);
else
return false;
if(prev.isValid())
prev.setNextParentChild(next);
else if (getFirstChild() == child)
setFirstChild(next);
else
return false;
child.setNextParentChild(Child());
child.setPrevParentChild(Child());
child.setParent(Parent());
setNumChilds(getNumChilds() - 1);
return true;
}