text: #ifndef PNMREAD_H
  #define PNMREAD_H
  #include <source.h>
  
  
  class PNMreader : public Source
  {
      private:
          char *_file;
          int width;
          int height;
      public:
          PNMreader(char *filename);
          ~PNMreader();
          virtual void Execute();
          const char *SourceName(){return "PNMreader";};
  };
  
  #endif
  