axmol/cocos/base/CCSet.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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#include "CCSet.h"

using namespace std;

NS_CC_BEGIN

Set::Set(void)
{
    _set = new set<Object *>;
}

Set::Set(const Set &rSetObject)
{
    _set = new set<Object *>(*rSetObject._set);

    // call retain of members
    SetIterator iter;
    for (iter = _set->begin(); iter != _set->end(); ++iter)
    {
        if (! (*iter))
        {
            break;
        }

        (*iter)->retain();
    }
}

Set::~Set(void)
{
    removeAllObjects();
    CC_SAFE_DELETE(_set);
}

void Set::acceptVisitor(DataVisitor &visitor)
{
    visitor.visit(this);
}

Set * Set::create()
{
    Set * pRet = new Set();
    
    if (pRet != NULL)
    {
        pRet->autorelease();
    }
    
    return pRet;
}

Set* Set::copy(void)
{
    Set *pSet = new Set(*this);

    return pSet;
}

Set* Set::mutableCopy(void)
{
    return copy();
}

int Set::count(void)
{
    return (int)_set->size();
}

void Set::addObject(Object *pObject)
{
    if (_set->count(pObject) == 0)
    {
        CC_SAFE_RETAIN(pObject);
        _set->insert(pObject);
    }
}

void Set::removeObject(Object *pObject)
{
    if (_set->erase(pObject) > 0)
    {
        CC_SAFE_RELEASE(pObject);
    }
}

void Set::removeAllObjects()
{
    SetIterator it = _set->begin();
    SetIterator tmp;

    while (it != _set->end())
    {
        if (!(*it))
        {
            break;
        }
        
        tmp = it;
        ++tmp;
        Object * obj = *it;
        _set->erase(it);
        CC_SAFE_RELEASE(obj);
        it = tmp;
    }
}

bool Set::containsObject(Object *pObject)
{
    return _set->find(pObject) != _set->end();
}

SetIterator Set::begin(void)
{
    return _set->begin();
}

SetIterator Set::end(void)
{
    return _set->end();
}

Object* Set::anyObject()
{
    if (!_set || _set->empty())
    {
        return 0;
    }
    
    SetIterator it;

    for( it = _set->begin(); it != _set->end(); ++it)
    {
        if (*it)
        {
            return (*it);
        }
    }

    return 0;
}

NS_CC_END