#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);
    
    // CCScrollView
    m_ScrollView = CCCGameScrollView::create();
    m_ScrollView->createContainer(
                                  this,
                                  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 )
{
    
}