File indexing completed on 2024-04-28 03:44:25

 /*
     SPDX-FileCopyrightText: 2016 Artem Fedoskin <afedoskin3@gmail.com>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #ifndef PLANETMOONSNODE_H_
 #define PLANETMOONSNODE_H_
 #include "skynode.h"
 #include "../labelsitem.h"
 
 class PlanetNode;
 class PlanetMoons;
 class RootNode;
 class PointSourceNode;
 class KSPlanetBase;
 class QSGSimpleTextureNode;
 
 /** @class PlanetMoonsNode
  *
  * A SkyNode derived class used as a container for displaying a planet with its moons (if any). Unlike
  * PlanetMoons derived from SkyComponent PlanetMoonsNode represents both planet and moons. Ths PlanetNode
  * shouldn't be instantiated outside of this class (exception is AsteroidsItem). Although all SkyNodes
  * are "movable" objects (they change transform matrix to move across the SkyMapLite) this class is
  * just a container that provides z-order for moons and planets that change their positions on their own.
  *
  *@short A container for planets and moons that provides z-order.
  *@author Artem Fedoskin
  *@version 1.0
  */
 
 class PlanetMoonsNode : public SkyNode
 {
   public:
     /**
          * @short Constructor
          * @param planet pointer to planet object
          * @param parentNode pointer to the RootNode. It is needed for PointSourceNodes that use textures,
          * which are cached in RootNode.
          */
     PlanetMoonsNode(KSPlanetBase *planet, RootNode *parentNode);
     ~PlanetMoonsNode();
 
     /**
          * @short Add object of type PlanetMoons to this node
          * @param planetMoons PlanetMoons component
          */
     inline void addMoons(PlanetMoons *planetMoons) { pmoons = planetMoons; }
 
     /**
          * If planet has any moons first updateMoons() is called then the planet is updated
          */
     virtual void update() override;
 
     /**
          * @short Hides both planet and its moons
          */
     virtual void hide() override;
 
     /**
          * Update position of moons if planet has them. To allow z-ordering we need to change the structure
          * of node tree by removing all child nodes of this tree and adding them again so that moons that
          * are behind the planet are before the m_planetNode in the hierarchy and all others are appended
          * after m_planetNode.
          */
     void updateMoons();
 
   private:
     RootNode *m_rootNode;
     PlanetMoons *pmoons;
     PlanetNode *m_planetNode;
 
     LabelsItem::label_t m_labelType;
 
     QList<PointSourceNode *> m_moonNodes;
 };
 
 #endif