/**
 * The model.
 */
package main


/**
 * An abstract model interface.  At a minimum, models must be read only.
 */
type Model interface {
    
    /**
     * The dimensions of the model (height, width).
     */
    Dimensions()     (int, int)

    /**
     * Returns the value of a cell.
     */
    CellValue(r, c int) string
}

// A read/write model.
type RWModel interface {
    Model

    // Resize the model.
    Resize(newRow, newCol int)

    // Sets the cell value
    SetCellValue(r, c int, value string)
}