ControlExtensionTest(一)

#ifndef __CCCONTROLSCENE_H__
#define __CCCONTROLSCENE_H__

#include "cocos2d.h"
#include "cocos-ext.h"


USING_NS_CC;
USING_NS_CC_EXT;
//创建层的同时赋值标题
#define CONTROL_SCENE_CREATE_FUNC(controlScene) 
public: 
static CCScene* sceneWithTitle(const char * title) 
{ 
    CCScene* pScene = CCScene::create(); 
    controlScene* controlLayer = new controlScene(); 
    if (controlLayer && controlLayer->init()) 
    { 
        controlLayer->autorelease(); 
        controlLayer->getSceneTitleLabel()->setString(title); 
        pScene->addChild(controlLayer); 
    } 
    else 
    { 
        CC_SAFE_DELETE(controlLayer); 
    } 
    return pScene; 
}

//创建访问器，get和set
#define CC_SYNTHESIZE_RETAIN(varType, varName, funName)    
private: varType varName; 
public: virtual varType get##funName(void) const { return varName; } 
public: virtual void set##funName(varType var)   
{ 
    if (varName != var) 
    { 
        CC_SAFE_RETAIN(var); 
        CC_SAFE_RELEASE(varName); 
        varName = var; 
    } 
} 

class CCControlScene : public CCLayer
{
public:
    CCControlScene();
    ~CCControlScene();
    bool init();
    // Menu Callbacks
    void toExtensionsMainLayer(CCObject* sender);
    void previousCallback(CCObject* sender);
    void restartCallback(CCObject* sender);
    void nextCallback(CCObject* sender);

    /** Title label of the scene. */
    CC_SYNTHESIZE_RETAIN(CCLabelTTF*, m_pSceneTitleLabel, SceneTitleLabel)

    CONTROL_SCENE_CREATE_FUNC(CCControlScene);
};

#endif /* __CCCONTROLSCENE_H__ */

//删除指针，并赋值为空
#define CC_SAFE_RELEASE_NULL(p)        do { if(p) { (p)->release(); (p) = 0; } } while(0)

CCControlScene::~CCControlScene()
{
    CC_SAFE_RELEASE_NULL(m_pSceneTitleLabel);
}