//--------------------------------------------------------------------
//
//  Laboratory 2                                            ptlist.h
//
//  Class declaration for the array implementation of the Point
//  List ADT
//
//--------------------------------------------------------------------

const int defMaxListSize = 10;   // Default maximum list size

//--------------------------------------------------------------------

class Point
{
  public:

    Point ( float x0 = 0, float y0 = 0 )   // Constructor
       { x = x0; y = y0; }

    float x, y;   // Point coordinates (can be accessed directly)
};

//--------------------------------------------------------------------

class PointList
{
  public:

    // Constructor
    PointList ( int maxNumber = defMaxListSize );

    // Destructor
    ~PointList ();

    // List manipulation operations
    void append ( Point newPoint );   // Append point to list
    void clear ();                    // Clear list

    // List status operations
    int empty () const;               // List is empty
    int full () const;                // List is full

    // List iteration operations
    int gotoBeginning ();             // Go to beginning
    int gotoEnd ();                   // Go to end
    int gotoNext ();                  // Go to next point
    int gotoPrior ();                 // Go to prior point
    Point getCursor () const;         // Return point

    // Output the list structure -- used in testing/debugging
    void showStructure () const;

    // In-lab operations
    void operator = ( const PointList &rightList );   // Assignment
    void insertBeginning ( Point newPoint );          // Insert begin.

  private:

    // Data members
    int maxSize,      // Maximum number of points in the list
        size,         // Actual number of points in the list
        cursor;       // Cursor array index
    Point *ptlist;    // Array containing the points
};