QList of pointers

I have such a code:

Code:

---

static QList<display_list*> displayLists;

---

items are added this way:

Code:

---

list = new display_list();
list->new_list(GL_COMPILE);
glBegin(GL_QUADS);
...
glEnd();
list->end_list();
displayLists.append(list);

---

The problem is if I need to clear list and generate otehr display lists than displayLists.clear() is a bad choice - ~display_list() is not called for elements, in fact lists still reside in OpenGL memory. Currently I have such a header in function, that generates this list:

Code:

---

void prepareLists()
{
	if(!displayLists.isEmpty())
		foreach(display_list* ptr, displayLists) delete ptr;
	displayLists.clear();
	...

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but I don't like it :confused:
Any ideas how to make it nice&clean?

PS: display_list is not a QObject

hmm... will

Code:

---

class MyQList: public QList
{
void QCollection::deleteItem ( Item d ) {
	delete d;
	::deleteItem(d);
}
}

---

do the job?

Do you know boost? You could use boost::shared_ptr. Please don't try this with std::auto_ptr because std:auto_ptr becomes invalid after reconstruction in / by QList.

Code:

---

void prepareLists()
{
    qDeleteAll(displayLists);
    displayLists.clear();
//...

---

I've moved to boost::shared_ptr, Codepoet thanks for the idea (I'm boost user for several weeks, don't remember all its features ;) )