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#ifndef G4RTSimpleScanner_H
#define G4RTSimpleScanner_H 1

// class description:
//
// G4RTSimpleScanner
// Provides a simple raster of window coordinates.

#include "G4VRTScanner.hh"

class G4RTSimpleScanner: public G4VRTScanner {

public: // with description

  G4RTSimpleScanner();
  virtual ~G4RTSimpleScanner();

  // Compiler defaults for copy constructor and assignmemt.

  virtual const G4String& GetGSName() const;
  // Get name that acts as graphics system name.

  virtual const G4String& GetGSNickname() const;
  // Get name that acts as graphics system nickname.  It is this that
  // the user specifies on the /vis/open and /vis/sceneHandler/create
  // commands.

  virtual void Initialize(G4int nRow, G4int nColumn);
  // Intialises scanner for window with nRow rows and nColumn columns.

  virtual G4bool Coords(G4int& iRow, G4int& iColumn);
  // Supplies coordinate (iRow,iColumn) and returns false when the
  // sequence has finished, i.e., on the call *after* suplying the
  // last valid coordinate.

protected:
  G4String theGSName, theGSNickname;
  G4int theNRow, theNColumn, theIRow, theIColumn;
};

#endif
