Cocos2dx 之 ButtonSprite

Cocos2dx下，自己封装的一个按钮

typedef  void  (CCObject::*ButtonClick_Func)();
typedef  void  (CCObject::*ButtonClick_FuncN)(CCObject* obj);
typedef  void  (CCObject::*ButtonClick_FuncND)(CCObject* obj,void* param);


#define click_selector(_SELECTOR) (ButtonClick_Func)(&_SELECTOR)
#define click_selectorN(_SELECTOR) (ButtonClick_FuncN)(&_SELECTOR)
#define click_selectorND(_SELECTOR) (ButtonClick_FuncND)(&_SELECTOR)

//
//  ButtonSprite.h
//  Zuma_V4
//
//  Created by user on 13-1-28.
//
//

#ifndef __Zuma_V4__ButtonSprite__
#define __Zuma_V4__ButtonSprite__

#include <iostream>
#include "CallBack.h"
#include "cocos2d.h"
using namespace cocos2d;

class ButtonSprite : public CCSprite,public CCTouchDelegate
{
    // touch 事件优先级
    int m_touchPriority;
    
    bool m_isDown;
    
    // update  2013-02-17
    // click handle
    ButtonClick_Func m_BtnClick_Func;

//    int param;
public:
    ButtonSprite();
    virtual ~ButtonSprite();
       
    //
    // update  2013-02-17
    // 调整按钮的默认优先级,设置为最高优先级
    static ButtonSprite* createButtonSprite(const char* fileName,int tPriority = kCCMenuHandlerPriority);
    
    static ButtonSprite* createButtonSpriteWithSpriteFrame(CCSpriteFrame *pSpriteFrame,int tPriority = kCCMenuHandlerPriority);
    
    /* 触摸相关 */
    virtual void onEnter();
    virtual void onExit();
    virtual bool ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent);
    // optional
    
    virtual void ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent);
    virtual void ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent);
    virtual void ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent);
    
    
    //update  2013-02-17
    void clicked();
    
    void setOnClickListener(ButtonClick_Func tBtnClickFunc);
};




#endif /* defined(__Zuma_V4__ButtonSprite__) */

//
//  ButtonSprite.cpp
//  Zuma_V4
//
//  Created by user on 13-1-28.
//
//

#include "ButtonSprite.h"

/**********************************************
            构造函数和析构函数
 **********************************************/
ButtonSprite::ButtonSprite():m_isDown(false)
{
    m_touchPriority = 0;
    m_BtnClick_Func = 0;
}
ButtonSprite::~ButtonSprite(){};


void ButtonSprite::onEnter(){
    CCSprite::onEnter();
    
    CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this,m_touchPriority, true);
};
void ButtonSprite::onExit(){
    CCSprite::onExit();
    CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this);
};


bool ButtonSprite::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent){
    CCPoint touchPoint = getParent()->convertTouchToNodeSpace(pTouch);
    if (boundingBox().containsPoint(touchPoint) && !m_isDown) {
        m_isDown = true;
        return true;
    }
    
    return false;
};
// optional

void ButtonSprite::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent){
    
    CCPoint touchPoint = getParent()->convertTouchToNodeSpace(pTouch);

    float deltaX = pTouch->getDelta().x;
    
    deltaX = deltaX > 0 ? deltaX : -deltaX;
    
    if (!boundingBox().containsPoint(touchPoint)  || !m_isDown || deltaX > 15) {
        m_isDown = false;
        return;
    }
    
};
void ButtonSprite::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent){
    CCPoint touchPoint = getParent()->convertTouchToNodeSpace(pTouch);
    if (boundingBox().containsPoint(touchPoint) && m_isDown) {
        /* 相当于产生了click事件 */
        if (m_BtnClick_Func) {
            //来个点击效果
            CCActionInterval* sAction = CCScaleTo::create(0.1, 1.2);
            CCActionInterval* sAction2 = CCScaleTo::create(0.1, 1);
            CCCallFunc*  callFun = CCCallFunc::create(this,callfunc_selector(ButtonSprite::clicked));
            runAction(CCSequence::create(sAction,sAction2,callFun,NULL));

        }
        m_isDown = false;
    }
};


void ButtonSprite::ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent){
    m_isDown = false;
};

ButtonSprite* ButtonSprite::createButtonSprite(const char* fileName,int tPriority)
{
    ButtonSprite* button  = new ButtonSprite();
    button->m_touchPriority = tPriority;
    if (button && button->initWithFile(fileName)) {
        button->autorelease();
        return button;
    }
    CC_SAFE_DELETE(button);
    return button;
}


ButtonSprite* ButtonSprite::createButtonSpriteWithSpriteFrame(CCSpriteFrame *pSpriteFrame,int tPriority)
{
    ButtonSprite *pobSprite = new ButtonSprite();
    pobSprite->m_touchPriority = tPriority;
    if (pSpriteFrame && pobSprite && pobSprite->initWithSpriteFrame(pSpriteFrame))
    {
        pobSprite->autorelease();
        return pobSprite;
    }
    CC_SAFE_DELETE(pobSprite);
    return NULL;
}

//
// update
void ButtonSprite::setOnClickListener(ButtonClick_Func tBtnClickFunc)
{
    m_BtnClick_Func = tBtnClickFunc;
}

void ButtonSprite::clicked()
{
    (this->*m_BtnClick_Func)();
}

使用方式:

void MainMenu::onEnter()
{
    CCLayer::onEnter();
    
    ButtonSprite* playBtn = ButtonSprite::createButtonSprite("play.png");
    playBtn->setPosition(ccp(240, 400));
    
    playBtn->setOnClickListener(click_selector(MainMenu::btnCall));
    
    addChild(playBtn);
}

void MainMenu::btnCall()
{
    CCLog("[MainMenu::btnCall()]");
}

评论

1 楼 fireDragonpzy 2013-07-05  

封装的很棒 mark
typedef  void  (CCObject::*ButtonClick_FuncND)(CCObject* obj,void* param); 
#define click_selector(_SELECTOR) (ButtonClick_Func)(&_SELECTOR)
不大理解，可否给解释下？
http://www.firedragonpzy.com.cn可以从这里留言或http://bbs.firedragonpzy.com.cn 这个iteye不大来。。。。万分感谢……