/******************************************************************************/
/******************************************************************************/
class ElmImageAtlas : ElmData
{
   class Img
   {
      bool      removed;
      UID       id;
      TimeStamp removed_time;

      static int Compare(C Img &img, C UID &id);

      bool equal(C Img &src)C;
      bool newer(C Img &src)C;

      bool undo(C Img &src);

public:
   Img();
   };
   bool      mip_maps;
   Memc<Img> images;
   TimeStamp file_time, mip_maps_time;

 C Img* find(C UID &id)C;
   Img* find(C UID &id); 
   Img&  get(C UID &id); 

   // operations
   virtual void newData()override;

   bool equal(C ElmImageAtlas &src)C;
   bool newer(C ElmImageAtlas &src)C;

   virtual bool mayContain(C UID &id)C override;

   uint undo(C ElmImageAtlas &src);
   uint sync(C ElmImageAtlas &src);
   bool syncFile(C ElmImageAtlas &src);

   // io
   virtual bool save(File &f)C override;
   virtual bool load(File &f)override;
   virtual void save(MemPtr<TextNode> nodes)C override;
   virtual void load(C MemPtr<TextNode> &nodes)override;

public:
   ElmImageAtlas();
};
/******************************************************************************/
/******************************************************************************/
/******************************************************************************/