/**
   A simple Rectangle.
   @author Charlie McDowell
 */
class Rectangle implements Shape {
    private int left, top, width, height;

    /**
       Construct a rectangle given the coordinates of the upper left corner plus
       the width and height.
     */
    Rectangle(int left, int top, int width, int height) {
        this.left = left;
        this.top = top;
        this.width = width;
        this.height = height;
    }

    /**
       Draw ths rectangle on the specifid graphics device.
     */
    public void draw(TGraphics graphics) {
        graphics.drawLine(left, top, left+width, top);
        graphics.drawLine(left, top+height, left+width, top+height);
        graphics.drawLine(left, top, left, top+height);
        graphics.drawLine(left+width, top, left+width, top+height);
    }
}