coco2d-x CCScrollView实现背包翻页

#include "CCCGameScrollView.h"

USING_NS_CC;
USING_NS_CC_EXT;

CCCGameScrollView::CCCGameScrollView()
:m_fAdjustSpeed(ADJUST_ANIM_VELOCITY)
, m_nPrePage(0)
{

}

CCCGameScrollView::~CCCGameScrollView()
{

}

bool CCCGameScrollView::init()
{
if (!CCScrollView::init())
{
return false;
}

return true;
}

bool CCCGameScrollView::ccTouchBegan( CCTouch *pTouch, CCEvent *pEvent )
{
m_BeginOffset = getContentOffset();
return CCScrollView::ccTouchBegan(pTouch, pEvent);
}

void CCCGameScrollView::ccTouchMoved( CCTouch *pTouch, CCEvent *pEvent )
{
CCScrollView::ccTouchMoved(pTouch, pEvent);
}

void CCCGameScrollView::ccTouchEnded( CCTouch *pTouch, CCEvent *pEvent )
{
CCPoint touchPoint = pTouch->getLocationInView();
touchPoint = CCDirector::sharedDirector()->convertToGL( touchPoint );

CCScrollView::ccTouchEnded(pTouch, pEvent);

CCPoint m_EndOffset=getContentOffset();

if (m_BeginOffset.equals(m_EndOffset))
{
int nPage = abs(m_EndOffset.x / (int)m_CellSize.width);
m_pDelegate->scrollViewClick(nPage);
//  pDele->scrollViewClick(m_EndOffset,touchPoint,m_pContainer->getChildByTag(nPage),nPage);
return ;
}

adjustScrollView(m_BeginOffset,m_EndOffset);
}

void CCCGameScrollView::ccTouchCancelled( CCTouch *pTouch, CCEvent *pEvent )
{
CCScrollView::ccTouchCancelled(pTouch, pEvent);

CCPoint m_EndOffset=getContentOffset();
adjustScrollView(m_BeginOffset,m_EndOffset);
}

void CCCGameScrollView::adjustScrollView( const cocos2d::CCPoint& oBegin,const cocos2d::CCPoint & oEnd)
{

int nPage = abs(oBegin.x / (int)m_CellSize.width);

int nAdjustPage = 0;

int nDis = oEnd.x-oBegin.x;

if (nDis<-getViewSize().width/5)
{
nAdjustPage=nPage+1;
}
else if (nDis>getViewSize().width/5)
{
nAdjustPage=nPage-1;
}
else
{
nAdjustPage=nPage;
}

nAdjustPage=MIN(nAdjustPage,m_nPageCount-1);
nAdjustPage=MAX(nAdjustPage,0);

scrollToPage(nAdjustPage);
}

void CCCGameScrollView::scrollToPage( int nPage )
{
// 关闭CCScrollView中的自调整
unscheduleAllSelectors();

CCPoint oOffset=getContentOffset();
// 调整位置
CCPoint adjustPos=ccp(-m_CellSize.width*nPage,0);

// 调整动画时间
float adjustAnimDelay=ccpDistance(adjustPos,oOffset)/m_fAdjustSpeed;

// 调整位置
setContentOffsetInDuration(adjustPos, adjustAnimDelay);

if (nPage!=m_nPrePage)
{
schedule(schedule_selector(CCCGameScrollView::onScrollEnd),adjustAnimDelay,0,0.0f);
m_nPrePage=nPage;
}
}

void CCCGameScrollView::onScrollEnd(float fDelay)
{
int nPage=getCurPage();
m_pDelegate->scrollViewScrollEnd(nPage);
}

void CCCGameScrollView::scrollToNextPage()
{
int nCurPage=getCurPage();
if (nCurPage>=m_nPageCount-1)
{
return ;
}
scrollToPage(nCurPage+1);
}

void CCCGameScrollView::scrollToPrePage()
{
int nCurPage=getCurPage();
if (nCurPage<=0)
{
return ;
}
scrollToPage(nCurPage-1);
}

bool CCCGameScrollView::createContainer(CCCGameScrollViewDelegate* pDele,
int nCount, //总共的Page数量
const cocos2d::CCSize & oSize )//每一个Page的尺寸
{
m_nPageCount=nCount;
m_CellSize=oSize;
m_pDelegate = pDele;
CCLayer* pContainer=CCLayer::create();
pContainer->setAnchorPoint(CCPointZero);
pContainer->setPosition(CCPointZero);

CCSize winSize=CCDirector::sharedDirector()->getVisibleSize();

for (int i=0;i<nCount;++i)
{
CCNode* pNode=CCNode::create();
pDele->scrollViewInitPage(pNode,i);
pNode->setPosition(ccp(winSize.width/2+i*oSize.width,winSize.height/2));
pNode->setTag(i);
pContainer->addChild(pNode);
}

setContainer(pContainer);
setContentSize(CCSizeMake(oSize.width*nCount,oSize.height));

return true;
}

int CCCGameScrollView::getCurPage()
{
return abs(getContentOffset().x / (int)m_CellSize.width);
}

#include "cocos2d.h"#include "cocos-ext.h"USING_NS_CC;class CCCGameScrollViewDelegate: public cocos2d::extension::CCScrollViewDelegate{public: //初始化每个单独Page的回调 virtual bool scrollViewInitPage(cocos2d::CCNode* pPage,int nPage){return true;}; //点击一个Page的回调 virtual
void scrollViewClick(int nPage ){}; //每一次切换Page的回调 virtual void scrollViewScrollEnd(int nPage){};};

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

// 校正滑动动画速度
#define ADJUST_ANIM_VELOCITY 2000

class CCCGameScrollView
: public cocos2d::extension::CCScrollView
{
private:
CCCGameScrollViewDelegate* m_pDelegate;
public:
CCCGameScrollView();
~CCCGameScrollView();
public:
CREATE_FUNC(CCCGameScrollView);
bool init();

bool createContainer(CCCGameScrollViewDelegate* pDele, int nCount,const cocos2d::CCSize & oSize );

virtual bool ccTouchBegan( cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent );

virtual void ccTouchMoved( cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent );

virtual void ccTouchEnded( cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent );

virtual void ccTouchCancelled( cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent );

void scrollToPage(int nPage);
void scrollToNextPage();
void scrollToPrePage();

int getCurPage();
protected:
void adjustScrollView(const cocos2d::CCPoint& oBegin,const cocos2d::CCPoint & oEnd);

virtual void onScrollEnd(float fDelay);
protected:
int m_nPageCount;
int m_nPrePage;
cocos2d::CCPoint m_BeginOffset;
cocos2d::CCSize m_CellSize;
float m_fAdjustSpeed;
};

#include "cocos2d.h"#include "cocos-ext.h"#include "CCCGameScrollViewDelegate.h"#include "CCCGameScrollView.h"USING_NS_CC;USING_NS_CC_EXT;class PageViewLayer : public CCLayer, public CCCGameScrollViewDelegate{public:CCCGameScrollView* m_ScrollView;virtual bool init();virtual void scrollViewDidScroll( cocos2d::extension::CCScrollView* view ) {};virtual void scrollViewDidZoom( cocos2d::extension::CCScrollView* view ) {};virtual bool scrollViewInitPage( cocos2d::CCNode* pPage,int nPage );virtual void scrollViewClick(int nPage );virtual void scrollViewScrollEnd(int nPage );CREATE_FUNC(PageViewLayer);};

#include "PageViewLayer.h"bool PageViewLayer::init(){if (!CCLayer::init()){return false;}CCSprite* pBackGround=CCSprite::create("btn_bar04.png");pBackGround->setPosition(ccp(480,320));addChild(pBackGround);// CCScrollViewm_ScrollView = CCCGameScrollView::create();m_ScrollView->createContainer(4000this,4,//总共的Page数量CCSizeMake(440,640));//每一个Page的尺寸m_ScrollView->setPosition(ccp(240,0));m_ScrollView->setContentOffset(CCPointZero);m_ScrollView->setViewSize(CCSizeMake(400, 640));m_ScrollView->setDirection(kCCScrollViewDirectionHorizontal);this->addChild(m_ScrollView);return true;}bool PageViewLayer::scrollViewInitPage( cocos2d::CCNode* pPage,int nPage ){CCSprite *sprite = CCSprite::create("gezi.png");sprite->setPosition(ccp(-300,0));pPage->addChild(sprite);return true;}void PageViewLayer::scrollViewScrollEnd(int nPage ){}void PageViewLayer::scrollViewClick(int nPage ){}