shape.java

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/*
 * Shape - an abstract base class for other shapes.
 * Defines color and origin of shape, and getter/setters for those
 * Defines abstract methods area and perimeter for actual shapes
 */
public abstract class Shape           
{
    // Attributes
    private Color color;
    private Point origin;

    // Constructors
    protected Shape(Color col, Point org)
    {
        origin = new Point(org.getX(), org.getY());
        color = new Color(col.getR(),col.getG(), col.getB());
    }

    protected Shape(Point org)
    {
        origin = new Point(org.getX(), org.getY());
        color = new Color(0,0,0);    // black by default
    }

    protected Shape()
    {
        origin = new Point(0.0, 0.0);  // 0.,0. origin
        color = new Color(0,0,0);      // black by default
    }

    // Methods
    public abstract double area();     // up to real shape to define

    public abstract double perimeter(); // up to real shape to define

    public Color getColor()
    {
        return color;
    }

    public void setColor(Color col)
    {
        color.setRGB(col.getR(), col.getG(), col.getB());
    }

    public Point getOrigin()
    {
        return origin;
    }

    public void setOrigin(Point org)
    {
        origin.setPoint(org.getX(), org.getY());
    }
}