Widget.cpp

void getHighlightableChildren(Widget* currentHighlightWiget, WidgetList& list) {

  // 取得該 Widget 在哪個頁面上
  Page* pagePtr = currentHighlightWiget->getParentPage();
  
  const WidgetList& children = pagePtr->getChildren();
  Layer* layer = NULL;

  // 取得 highlightable list，部分可用 recursive 方式判斷 isHighlightable() 這個 method 得到
  for (WidgetList::const_iterator it = children.begin(); it != children.end(); ++it) {
    layer = (Layer *)*it;
    if (layer->isActive()) {
        layer->findHighlightableChildren(list);
    }
  }
}