// CS 2510 Spring 2011
// Assignment 4: ExcelCells.java

import tester.*;
import image.*;
import world.World;

/*
 *       +------------+
 *       |    Cell    |<-------------------+-+
 *       +------------+                    | |
 *       | int row    |                    | |
 *       | int col    |                    | |
 *       | IData data |--+                 | |
 *       +------------+  |                 | |
 *                       |                 | |
 *                       V                 | |
 *                  +-------+              | |
 *                  | IData |              | |
 *                  +---+---+              | |
 *                     / \                 | |
 *                    +-+-+                | |
 *                      |                  | |
 *         +------------+-------+          | |
 *         |                    |          | |
 *  +------+-----+        +-----+------+   | |
 *  |   Number   |        | Formula    |   | |
 *  +------------+        +------------+   | |
 *  | int number |     +--| IFun fun   |   | |
 *  +------------+     |  | Cell rand1 |---+ |
 *                     |  | Cell rand2 |-----+
 *                     |  +------------+
 *                     V
 *                 +-------+
 *                 | IFun  |
 *                 +---+---+
 *                    / \
 *                   +-+-+
 *                     |
 *          +----------+-----------+
 *          |          |           |
 *      +---+--+   +---+---+   +---+---+
 *      | Plus |   | Minus |   | Times |
 *      +------+   +-------+   +-------+
 *
 */

// Represents a Cell in a spreadsheet
class Cell{
    int row;
    int col;
    IData data;

    Cell(int row, int col, IData data){
        this.row = row;
        this.col = col;
        this.data = data;
    }

    /* Template:
     *   Fields:
     *    ... this.row ...    -- int
     *    ... this.col ...    -- int
     *    ... this.data ...   -- IData
     *
     *  Methods:
     *
     *  Methods for Fields:
     */
}

// Represents Data in a Cell
interface IData{
}


// Represents numerical data in a Cell
class Number implements IData{
    int number;

    Number(int number){
        this.number = number;
    }

    /* Template:
     *   Fields:
     *    ... this.number ...        -- int
     *
     *   Methods:
     */
}

// Represents a Formula in a Cell
class Formula implements IData{
    IFun fun;
    Cell rand1;
    Cell rand2;

    Formula(IFun fun, Cell rand1, Cell rand2){
        this.fun = fun;
        this.rand1 = rand1;
        this.rand2 = rand2;
    }


    /* Template:
     *   Fields:
     *    ... this.fun ...         -- IFun
     *    ... this.rand1 ...       -- Cell
     *    ... this.rand2 ...       -- Cell
     *
     *   Methods:
     *
     *   Methods for Fields:
     */
}

// Represents a two argument Function
interface IFun{

}

// Represents a two argument addition function
class Plus implements IFun{
    Plus(){}

    /* Template:
     *   Methods:
     */
}


// Represents a two argument subtraction function
class Min implements IFun{
    Min(){}

    /* Template:
     *   Methods:
     */
}


// Represents a two argument multiplication function
class Times implements IFun{
    Times(){}

    /* Template:
     *   Methods:
     */
}

// Examples and tests for excel classes
class ExamplesExcelCells{
    ExamplesExcelCells(){}

    IData n5 = new Number(5);
    IData n7 = new Number(7);

    Cell a1 = new Cell(1, 1, this.n5);
    Cell a2 = new Cell(2, 1, this.n7);

    IData fa3 = new Formula(new Plue(), this.a1, this.a2);
    Cell a3 = new Cell(3, 1, this.fa3);

    //** Tests...
}