//Rectangle.java

/**
 * Class for drawing rectangles on the screen using keyboard
 * characters. Each character is higher than it is wide, so
 * these rectangles will look taller than you might expect.
 * Inherits getOffset, setOffset, and drawAt from the class
 * ShapeBase.
*/
public class Rectangle extends ShapeBase implements RectangleInterface
{
    private int height;
    private int width;
    
    public Rectangle( )
    {
        super( );
        height = 0;
        width = 0;
    }
    
    public Rectangle(int theOffset, int theHeight, int theWidth)
    {
        super(theOffset);
        height = theHeight;
        width = theWidth;
    }
    
    public void set(int newHeight, int newWidth)
    {
        height = newHeight;
        width = newWidth;
    }
    
    /** Draws the figure at the current line. */
    public void drawHere( )
    {
        drawHorizontalLine( );
        drawSides( );
        drawHorizontalLine( );
    }

    private void drawHorizontalLine( )
    {
        skipSpaces(getOffset( )); 
        for (int count = 0; count < width; count++)
            System.out.print('-');
        System.out.println( );        
    }
    
    private void drawSides( )
    {
        for (int count = 0; count < (height - 2); count++)
            drawOneLineOfSides( );
    }
    
    private void drawOneLineOfSides( )
    {
        skipSpaces(getOffset( )); 
        System.out.print('|');
        skipSpaces(width - 2);        
        System.out.println('|');
    }
    
    //Writes the indicated number of spaces.
    private static void skipSpaces(int number)
    {
        for (int count = 0; count < number; count++)
            System.out.print(' ');
    }
}