import javabook.*;
import java.awt.*;

/**
 * DrawingLab1
 * Inspired by a lab from Jeff Ondich
 * @author Dave Musicant
 * @version 2.0 12/20/01
 *
 * Try doing these things:
 *
 * 0. Compile it, run it, and read all the methods to see what they do.
 *
 * 1. Try changing the arguments passed to sayHello(). What do the
 * four arguments to drawLine do? Which is a more generally useful
 * method--sayHello(), or sayHelloAgain()? Why?
 * (Hint to what I'm getting at: one of these functions does something with
 * no variation, while the other can be used more flexibly.)
 */

class DrawingLab1 extends MainWindow
{
    // Data values
    final private int windowWidth = 500;
    final private int windowHeight = 500;

    /**
     * Constructor.
     */
    public DrawingLab1()
    {
	setVisible(true);
	toFront();

	// Set the size and color of the window.

	setSize(windowWidth,windowHeight);
	setBackground(Color.black);

	repaint();
    }

    /**
      * Method that does the actual drawing.
      */
    public void paint(Graphics graphics)
    {
	sayHello(graphics,100,350);
	sayHelloAgain(graphics);
	drawSomeSquares(graphics);
    }

    private void sayHello(Graphics graphics,int startX, int startY)
    {
	graphics.setColor(Color.white);
	graphics.drawLine(startX,startY+100,startX+30,startY+20);
        graphics.drawLine(startX+30,startY+20,startX+20,startY);
        graphics.drawLine(startX+20,startY,startX+20,startY+100);
        graphics.drawLine(startX+20,startY+100,startX+30,startY+70);
        graphics.drawLine(startX+30,startY+70,startX+40,startY+70);
        graphics.drawLine(startX+40,startY+70,startX+50,startY+100);
        graphics.drawLine(startX+50,startY+100,startX+65,startY+100);
        graphics.drawLine(startX+65,startY+100,startX+75,startY+70);
        graphics.drawLine(startX+75,startY+70,startX+80,startY+100);
        graphics.drawLine(startX+70,startY+50,startX+70,startY+48);
    }

    private void sayHelloAgain(Graphics graphics)
    {
	graphics.setColor(Color.red);
	
	// Obtain the object containing the font from the graphics object,
	// change the size, and reassign the font.

	Font font = graphics.getFont();
	Font newFont = font.deriveFont(24f);
	graphics.setFont(newFont);
	graphics.drawString("Howdy",350,400);
    }

    private void drawSomeSquares(Graphics graphics)
    {
	graphics.setColor(Color.blue);
	graphics.drawRect(150,250,50,50);
	graphics.drawRect(250,250,50,50);
    }

    public static void main(String[] args)
    {
	DrawingLab1 dw = new DrawingLab1();
    }

}