DJInfiniteScrollPicker

// // DJInfiniteScrollPicker.cpp // maptest // // Created by 杜甲 on 14-5-27. // // #include "DJInfiniteScrollPicker.h" bool DJInfiniteScrollPicker::init() { bool bRet = false; do { CC_BREAK_IF(!ui::Layout::init()); bRet = true; } while (0); return bRet; } DJInfiniteScrollPicker* DJInfiniteScrollPicker::create(Size size) { DJInfiniteScrollPicker* pRet = new DJInfiniteScrollPicker(); if (pRet && pRet->initWithSize(size)) { pRet->autorelease(); } else { CC_SAFE_DELETE(pRet); } return pRet; } bool DJInfiniteScrollPicker::initWithSize(cocos2d::Size size) { bool bRet = false; do { CC_BREAK_IF(!ui::Layout::init()); bRet = true; } while (0); return bRet; } void DJInfiniteScrollPicker::initInfiniteScrollView() { isFirstDrag = false; fontName = "TrebuchetMS-Bold"; alphaOfobjs = 1.0f; heightOffset = 0.0f; positionRatio = 1.0f; beforePointX = 0.0f; infiniteScrollView = extension::ScrollView::create(getSize()); infiniteScrollView->retain(); infiniteScrollView->setPosition(Point(0, 0)); infiniteScrollView->setBounceable(false); infiniteScrollView->setDelegate(this); //infiniteScrollView->setContentSize(get); addChild(infiniteScrollView); Sprite* temp = Sprite::create("res/set2/s2_1.png"); // log("anchor = %f",temp->getAnchorPoint().x); // temp->setPosition(Point(temp->getContentSize().width / 2, temp->getContentSize().height / 2)); // // temp->setPosition(Point( itemSize.width, 0)); // infiniteScrollView->addChild(temp); if (imageAry.size() > 0) { itemSize = temp->getContentSize(); } // if (imageAry.size() > 0) { for (int i = 0; i < (imageAry.size() * 5); i++) { //ui::Text* temp = ui::Text::create(StringUtils::format("%d",i % (int)imageAry.size()), fontName, 23); Sprite* sprite = Sprite::create(imageAry.at(i % imageAry.size())); sprite->setTag(i % imageAry.size()); sprite->setPosition(Point(i * itemSize.width + itemSize.width / 2, itemSize.height / 2)); imageStore.push_back(sprite); infiniteScrollView->addChild(sprite); } } infiniteScrollView->setContentSize(Size(imageAry.size() * 5 * itemSize.width, getSize().height)); float viewMiddle = imageAry.size() * 2 * itemSize.width; infiniteScrollView->setContentOffset(Point(-viewMiddle , 0)); } void DJInfiniteScrollPicker::scrollViewDidScroll(extension::ScrollView *view) { float sectionSize = imageAry.size() * itemSize.width; log("QQQQQQQQQQQQ%f,%f",infiniteScrollView->getContentOffset().x,beforePointX); if (beforePointX != infiniteScrollView->getContentOffset().x) { if (infiniteScrollView->getContentOffset().x < 0) { if (infiniteScrollView->getContentOffset().x >= (-sectionSize + sectionSize / 2)) { view->setContentOffset(Point(-sectionSize * 2 +sectionSize / 2, 0)); } else if (view->getContentOffset().x <= (-sectionSize * 3 - sectionSize / 2)) { view->setContentOffset(Point(-sectionSize * 2 - sectionSize / 2, 0)); } // if (infiniteScrollView->isDragging()) { // log("拖拽中"); reloadView(view->getContentOffset().x - getSize().width / 2); // } } else { view->setContentOffset(Point(-sectionSize * 2 + sectionSize / 2, 0)); } //判断是否被拖拽 if (!infiniteScrollView->isDragging()) { //判断是否是首次进入，首次不拖拽 if (isFirstDrag) { beforePointX = -currSprite->getPosition().x + getSize().width / 2; view->setContentOffset(Point(beforePointX, 0)); //log("停止拖拽view->getContentOffset().xQQ = %f",view->getContentOffset().x); if (_infiniteEventListener && _infiniteEventSelector) { (_infiniteEventListener->*_infiniteEventSelector)(currSprite); } // if (_scrollViewEventListener && _scrollViewEventSelector) // { // (_scrollViewEventListener->*_scrollViewEventSelector)(this, SCROLLVIEW_EVENT_SCROLL_TO_TOP); // } } isFirstDrag = true; } } log("view->getContentOffset().x = %f",view->getContentOffset().x); beforePointX = view->getContentOffset().x; } void DJInfiniteScrollPicker::reloadView(float offset) { float biggestSize = 0.0f; Ref* biggestView; Sprite* sprite = imageStore.at(2); for (int i = 0; i < imageStore.size(); i++) { Sprite* sprite = imageStore.at(i); if (-sprite->getPosition().x > (offset - itemSize.width / 2) && -sprite->getPosition().x < (offset + itemSize.width / 2)) { currSprite = sprite; currNum = i; sprite->setScale(2); }else { sprite->setScale(1); } } } void DJInfiniteScrollPicker::snapToAnEmotion() { float offset = infiniteScrollView->getContentOffset().x - getSize().width / 2; } void DJInfiniteScrollPicker::scrollViewDidZoom(extension::ScrollView *view) { } void DJInfiniteScrollPicker::addEventDJInifiteScrollPicker(cocos2d::Ref *sender, SEL_InfiniteScrollViewEvent type) { _infiniteEventListener = sender; _infiniteEventSelector = type; }