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https://github.com/u0u0/Cocos2d-Lua-Community.git
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init from cocos2d-x 4.0, cut some file.
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u0u0
281
cocos/ui/UIPageViewIndicator.cpp
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281
cocos/ui/UIPageViewIndicator.cpp
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/****************************************************************************
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Copyright (c) 2015 Neo Kim (neo.kim@neofect.com)
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "ui/UIPageViewIndicator.h"
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#include "2d/CCSprite.h"
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#include "base/ccUtils.h"
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static const char* CIRCLE_IMAGE = "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAQAAADZc7J/AAAA8ElEQVRIx62VyRGCQBBF+6gWRCEmYDIQkhiBCgHhSclC8YqWzOV5oVzKAYZp3r1/9fpbxAIBMTsKrjx5cqVgR0wgLhCRUWOjJiPqD56xoaGPhpRZV/iSEy6crHmw5oIrF9b/lVeMofrJgjlnxlIy/wik+JB+mme8BExbBhm+5CJC2LE2LtSEQoyGWDioBA5CoRIohJtK4CYDxzNEM4GAugR1E9VjVC+SZpXvhCJCrjomESLvc17pDGX7bWmlh6UtpjPVCWy9zaJ0TD7qfm3pwERMz2trRVZk3K3BD/L34AY+dEDCniMVBkPFkT2J/b2/AIV+dRpFLOYoAAAAAElFTkSuQmCC";
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static const char* CIRCLE_IMAGE_KEY = "/__circleImage";
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NS_CC_BEGIN
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namespace {
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static const float SPACE_BETWEEN_INDEX_NODES_DEFAULT = 23;
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static const uint8_t INDEX_NODES_OPACITY_DEFAULT = 0.3*255;
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}
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namespace ui {
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PageViewIndicator* PageViewIndicator::create()
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{
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PageViewIndicator* node = new (std::nothrow) PageViewIndicator();
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if (node && node->init())
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{
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node->autorelease();
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return node;
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}
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CC_SAFE_DELETE(node);
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return nullptr;
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}
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PageViewIndicator::PageViewIndicator()
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: _direction(PageView::Direction::HORIZONTAL)
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, _currentIndexNode(nullptr)
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, _currentOverlappingIndexNode(nullptr)
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, _spaceBetweenIndexNodes(SPACE_BETWEEN_INDEX_NODES_DEFAULT)
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, _indexNodesScale(1.0f)
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, _indexNodesColor(Color3B::WHITE)
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, _indexNodesOpacity(INDEX_NODES_OPACITY_DEFAULT)
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, _useDefaultTexture(true)
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, _indexNodesTextureFile("")
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, _indexNodesTexType(Widget::TextureResType::LOCAL)
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{
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}
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PageViewIndicator::~PageViewIndicator()
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{
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}
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bool PageViewIndicator::init()
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{
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_currentIndexNode = utils::createSpriteFromBase64Cached(CIRCLE_IMAGE, CIRCLE_IMAGE_KEY);
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_currentIndexNode->setVisible(false);
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addProtectedChild(_currentIndexNode, 1);
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return true;
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}
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void PageViewIndicator::setDirection(PageView::Direction direction)
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{
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_direction = direction;
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rearrange();
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}
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void PageViewIndicator::reset(ssize_t numberOfTotalPages)
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{
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while(_indexNodes.size() < numberOfTotalPages)
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{
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increaseNumberOfPages();
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}
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while(_indexNodes.size() > numberOfTotalPages)
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{
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decreaseNumberOfPages();
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}
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rearrange();
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_currentIndexNode->setVisible(!_indexNodes.empty());
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}
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void PageViewIndicator::indicate(ssize_t index)
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{
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if (index < 0 || index >= _indexNodes.size())
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{
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return;
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}
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Sprite* oldOverlappingNode = _currentOverlappingIndexNode;
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_currentOverlappingIndexNode = _indexNodes.at(index);
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if ( oldOverlappingNode != _currentOverlappingIndexNode ) {
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if ( oldOverlappingNode )
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oldOverlappingNode->setVisible(true);
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_currentOverlappingIndexNode->setVisible(false);
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_currentIndexNode->setPosition(_currentOverlappingIndexNode->getPosition());
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}
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}
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void PageViewIndicator::rearrange()
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{
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if(_indexNodes.empty())
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{
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return;
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}
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bool horizontal = (_direction == PageView::Direction::HORIZONTAL);
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// Calculate total size
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Size indexNodeSize = _indexNodes.at(0)->getContentSize();
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float sizeValue = (horizontal ? indexNodeSize.width : indexNodeSize.height);
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ssize_t numberOfItems = _indexNodes.size();
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float totalSizeValue = sizeValue * numberOfItems + _spaceBetweenIndexNodes * (numberOfItems - 1);
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float posValue = -(totalSizeValue / 2) + (sizeValue / 2);
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for(auto& indexNode : _indexNodes) {
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Vec2 position;
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if(horizontal)
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{
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position = Vec2(posValue, indexNodeSize.height / 2.0f);
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}
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else
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{
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position = Vec2(indexNodeSize.width / 2.0f, -posValue);
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}
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indexNode->setPosition(position);
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posValue += sizeValue + _spaceBetweenIndexNodes;
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}
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}
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void PageViewIndicator::setSpaceBetweenIndexNodes(float spaceBetweenIndexNodes)
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{
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if(_spaceBetweenIndexNodes == spaceBetweenIndexNodes)
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{
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return;
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}
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_spaceBetweenIndexNodes = spaceBetweenIndexNodes;
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rearrange();
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}
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void PageViewIndicator::setIndexNodesColor(const Color3B& indexNodesColor)
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{
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_indexNodesColor = indexNodesColor;
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for(auto& indexNode : _indexNodes) {
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indexNode->setColor(indexNodesColor);
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}
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}
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void PageViewIndicator::setIndexNodesOpacity(uint8_t opacity) {
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_indexNodesOpacity = opacity;
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for ( auto& indexNode : _indexNodes )
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indexNode->setOpacity(opacity);
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}
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void PageViewIndicator::setIndexNodesScale(float indexNodesScale)
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{
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if(_indexNodesScale == indexNodesScale)
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{
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return;
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}
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_indexNodesScale = indexNodesScale;
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_currentIndexNode->setScale(indexNodesScale);
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for(auto& indexNode : _indexNodes) {
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indexNode->setScale(_indexNodesScale);
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}
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rearrange();
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}
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void PageViewIndicator::setIndexNodesTexture(const std::string& texName, Widget::TextureResType texType)
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{
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_useDefaultTexture = false;
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_indexNodesTextureFile = texName;
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_indexNodesTexType = texType;
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switch (texType)
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{
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case Widget::TextureResType::LOCAL:
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_currentIndexNode->setTexture(texName);
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for(auto& indexNode : _indexNodes) {
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indexNode->setTexture(texName);
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}
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break;
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case Widget::TextureResType::PLIST:
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_currentIndexNode->setSpriteFrame(texName);
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for(auto& indexNode : _indexNodes) {
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indexNode->setSpriteFrame(texName);
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}
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break;
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default:
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break;
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}
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rearrange();
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}
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void PageViewIndicator::increaseNumberOfPages()
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{
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if ( _currentOverlappingIndexNode ) {
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_currentOverlappingIndexNode->setVisible(true);
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_currentOverlappingIndexNode = nullptr;
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}
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Sprite* indexNode;
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if(_useDefaultTexture)
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{
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indexNode = utils::createSpriteFromBase64(CIRCLE_IMAGE);
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}
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else
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{
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switch (_indexNodesTexType)
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{
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case Widget::TextureResType::LOCAL:
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indexNode = Sprite::create(_indexNodesTextureFile);
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break;
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case Widget::TextureResType::PLIST:
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indexNode = Sprite::createWithSpriteFrameName(_indexNodesTextureFile);
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break;
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default:
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break;
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}
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}
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indexNode->setColor(_indexNodesColor);
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indexNode->setScale(_indexNodesScale);
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indexNode->setOpacity(_indexNodesOpacity);
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addProtectedChild(indexNode);
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_indexNodes.pushBack(indexNode);
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}
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void PageViewIndicator::decreaseNumberOfPages()
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{
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if ( _currentOverlappingIndexNode ) {
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_currentOverlappingIndexNode->setVisible(true);
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_currentOverlappingIndexNode = nullptr;
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}
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if(_indexNodes.empty())
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{
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return;
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}
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removeProtectedChild(*_indexNodes.begin());
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_indexNodes.erase(_indexNodes.begin());
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}
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void PageViewIndicator::clear()
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{
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if ( _currentOverlappingIndexNode ) {
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_currentOverlappingIndexNode->setVisible(true);
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_currentOverlappingIndexNode = nullptr;
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}
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for(auto& indexNode : _indexNodes)
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{
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removeProtectedChild(indexNode);
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}
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_indexNodes.clear();
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_currentIndexNode->setVisible(false);
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}
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}
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NS_CC_END
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