C++ CCTexture2D::retainCount方法代码示例

void UnloadableSpriteNode::loadedTexture(CCObject* obj)
{
    CCTexture2D* aTex = (CCTexture2D*)obj;
    if (aTex==NULL || aTex->retainCount()<=0) {
        loading = false;
        return;
    }
	aTex->setAntiAliasTexParameters();
	
	//create sprite, position it and at to self
    drawing = true;
    
    this->_sprite = new CCSprite;
    this->_sprite->initWithTexture(aTex);

	this->_sprite->setAnchorPoint(ccp(0,0));
	this->_sprite->setPosition(ccp(0,0));
    
	// fill our activeRect fully with sprite (stretch if needed)
	this->_sprite->setScaleX(this->_activeRect.size.width / this->_sprite->getContentSize().width);
	this->_sprite->setScaleY(this->_activeRect.size.height / this->_sprite->getContentSize().height);
    
    loading = false;
    drawing = false;
}

void CCTextureCache::removeUnusedTextures()
{
	std::vector<std::string> keys = m_pTextures->allKeys();
	std::vector<std::string>::iterator it;
	for (it = keys.begin(); it != keys.end(); it++)
	{
		CCTexture2D *value = m_pTextures->objectForKey(*it);
		if (value->retainCount() == 1)
		{
			CCLOG("cocos2d: CCTextureCache: removing unused texture: %s", (*it).c_str());
			m_pTextures->removeObjectForKey(*it);
		}
	}
}

void CCTextureWatcher::CCListView_cellForRow(CCListView *listView, CCListViewProtrolData *data)
{
    m_nCurrnetPage = data->nRow + 1;
    CCListViewCell *cell = CCListViewCell::node();
    cell->setOpacity(0);
    cell->setContentSize(m_pList->getContentSize());
    cell->setSelectionColor(ccc4(0, 0, 0, 0));
    data->cell = cell;

    CCSize listItemSize = CCSize(m_pList->getContentSize().width / NUM_PER_PAGE, m_pList->getContentSize().height);

    CCSize size = CCSize(listItemSize.width * 0.9, listItemSize.height * 0.6);

    sprintf(m_pszString, "%d/%d", m_nCurrnetPage, m_nTotalPage);
    m_labelPage->setString(m_pszString);

    float offX = 0, offY = 0, offsetX = 0, offsetY = 0;
    CC_UNUSED_PARAM(offsetY);
    int nCount = 0;
    int nStart = (m_nCurrnetPage - 1) * NUM_PER_PAGE;
    int nEnd = nStart + NUM_PER_PAGE;

    CCDictElement* pElement = NULL;
    CCDICT_FOREACH(m_pTextures, pElement)
    {
        if (nCount >= nStart && nCount < nEnd)
        {
            string key = pElement->getStrKey();
            CCTexture2D* textrue = (CCTexture2D*)pElement->getObject();
            //textrue = m_pTextures->objectForKey(*it);
            if (textrue)
            {
                // reference count
                sprintf(m_pszString, "[%d]", textrue->retainCount() - 2);
                CCLabelTTF *labelCount = CCLabelTTF::labelWithString(m_pszString, "Arial", 16);
                if (textrue->retainCount() - 2 > 0)
                {
                    labelCount->setColor(ccc3(0, 255, 0));
                }
                else
                {
                    labelCount->setColor(ccc3(255, 0, 0));
                }
                offX = offsetX + listItemSize.width * 0.5 - labelCount->getContentSize().width * 0.5;
                offY = (listItemSize.height - size.height) * 0.5 - labelCount->getContentSize().height;
                labelCount->setPosition(ccp(offX, offY));
                labelCount->setAnchorPoint(ccp(0, 0));
                cell->addChild(labelCount);

                // texture size
                sprintf(m_pszString, "%.0f*%.0f", textrue->getContentSize().width, textrue->getContentSize().height);
                CCLabelTTF *labelSize = CCLabelTTF::labelWithString(m_pszString, "Arial", 16);
                offX = offsetX + listItemSize.width * 0.5;
                offY = (listItemSize.height - size.height) * 0.5 + size.height;
                labelSize->setPosition(ccp(offX, offY));
                labelSize->setAnchorPoint(ccp(0.5, 0));
                cell->addChild(labelSize);

                // texture name
                int len = key.length();
                int pos = 0;

                pos = key.rfind('\\') + 1;
                int pos2 = key.rfind('/') + 1;
                pos = pos > pos2 ? pos : pos2;

                string name = key.substr(pos, len - pos);
                sprintf(m_pszString, "%s", name.c_str());
                CCSize dimensions = CCSizeMake(listItemSize.width * 0.9, labelSize->getContentSize().height);
                CCLabelTTF *labelName = CCLabelTTF::labelWithString(m_pszString, dimensions, CCTextAlignmentCenter, "Arial", 16);
                offX = offsetX + listItemSize.width * 0.5;
                offY = offY + labelName->getContentSize().height;
                labelName->setPosition(ccp(offX, offY));
                labelName->setAnchorPoint(ccp(0.5, 0));
                cell->addChild(labelName);

                CCSprite *sprite = CCSprite::spriteWithTexture(textrue);
                sprite->setAnchorPoint(ccp(0, 0));

                CCSize spriteSize = sprite->getContentSize();
                float scale;
                if (spriteSize.width < size.width && spriteSize.height < size.height)
                {
                    scale = 1;
                }
                else if (spriteSize.width * size.height >= spriteSize.height * size.width)
                {
                    scale = size.width / spriteSize.width;
                }
                else
                {
                    scale = size.height / spriteSize.height;
                }
                sprite->setScale(scale);
                spriteSize.width *= scale;
                spriteSize.height *= scale;
                offX = offsetX + (listItemSize.width - spriteSize.width) * 0.5;
                offY = (listItemSize.height - spriteSize.height) * 0.5;
                sprite->setPosition(ccp(offX, offY));
                cell->addChild(sprite);
//.........这里部分代码省略.........