Method initialize

ASAP/PathologyViewer.cpp:234–266

}

void PathologyViewer::initialize(std::shared_ptr<MultiResolutionImage> img) {
  close();
  setEnabled(true);
  _img = img;
  unsigned int tileSize = 512;
  unsigned int lastLevel = _img->getNumberOfLevels() - 1;
  for (int i = lastLevel; i >= 0; --i) {
    std::vector<unsigned long long> lastLevelDimensions = _img->getLevelDimensions(i);
    if (lastLevelDimensions[0] > tileSize && lastLevelDimensions[1] > tileSize) {
      lastLevel = i;
      break;
    }
  }
  _cache = new WSITileGraphicsItemCache();
  _cache->setMaxCacheSize(_cacheSize);
  _ioThread = new IOThread(this);
  _ioThread->setBackgroundImage(img);
  _manager = new TileManager(_img, tileSize, lastLevel, _ioThread, _cache, scene());
  setMouseTracking(true);
  std::vector<IOWorker*> workers = _ioThread->getWorkers();
  for (int i = 0; i < workers.size(); ++i) {
    QObject::connect(workers[i], SIGNAL(tileLoaded(QPixmap*, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, ImageSource*, QPixmap*)), _manager, SLOT(onTileLoaded(QPixmap*, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, ImageSource*, QPixmap*)));
    QObject::connect(workers[i], SIGNAL(foregroundTileRendered(QPixmap*, unsigned int, unsigned int, unsigned int)), _manager, SLOT(onForegroundTileRendered(QPixmap*, unsigned int, unsigned int, unsigned int)));
  }
  initializeImage(scene(), tileSize, lastLevel);
  initializeGUIComponents(lastLevel);
  QObject::connect(this, SIGNAL(backgroundChannelChanged(int)), _ioThread, SLOT(onBackgroundChannelChanged(int)));
  QObject::connect(_cache, SIGNAL(itemEvicted(WSITileGraphicsItem*)), _manager, SLOT(onTileRemoved(WSITileGraphicsItem*)));
  QObject::connect(this, SIGNAL(fieldOfViewChanged(const QRectF, const unsigned int)), this, SLOT(onFieldOfViewChanged(const QRectF, const unsigned int)));
  QRectF FOV = this->mapToScene(this->rect()).boundingRect();
  QRectF FOVImage = QRectF(FOV.left() / this->_sceneScale, FOV.top() / this->_sceneScale, FOV.width() / this->_sceneScale, FOV.height() / this->_sceneScale);
  emit fieldOfViewChanged(FOVImage, _img->getBestLevelForDownSample((1. / this->_sceneScale) / this->transform().m11()));
}

void PathologyViewer::onForegroundImageChanged(std::weak_ptr<MultiResolutionImage> for_img, float scale) {
  _for_img = for_img;