//  file SamplerShell.java
//  Written by Harriet Fell
//	January 4, 2002
//  This code may be used as a shell for your sampler program.
//  It opens a graphics window and makes two calls to a function that draws random lines 
//  within a given rectangle
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import java.awt.image.*;
import java.util.Random;

public class SamplerShell extends JComponent {
	// This is not used here but I used a buffered image for individual pixels
	private BufferedImage bImage;

/*  The default constructor is fine now but you may need a constructor, e.g. for a new BufferedImage.	
	public SamplerShell() {
	}
*/

public void someLines(Graphics2D g, int x0, int y0, int width, int height) {
	g.setStroke(new BasicStroke(1));			// Line width is 1
	Random rnums = new Random();				// A new random number generator
	
	// This draw 200 pairs of random lines, one from the left to right of the rectangle 
	// and one from top to bottom.
	for (int lNum = 0; lNum < 200; lNum++) {
		// x1 and x2 are for the lines from top to bottom
		int x1 = rnums.nextInt(width);	    int x2 = rnums.nextInt(width);
		// y1 and y2 are for the lines from left to right
		int y1 = rnums.nextInt(height);		int y2 = rnums.nextInt(height);
		
		// A new random color is selected for each line
		Color l1Color = new Color (rnums.nextInt(255),  rnums.nextInt(255),  rnums.nextInt(255));
		g.setPaint(l1Color);
		g.drawLine(x0 + x1, y0, x0 + x2, y0 + height);	// top to bottom line
		Color l2Color = new Color (rnums.nextInt(255),  rnums.nextInt(255),  rnums.nextInt(255));
		g.setPaint(l2Color);
		g.drawLine(x0, y0 + y1, x0 + width, y0 + y2);	// left to right line
	}
}

public void drawPic(Graphics2D g, int x, int y, int width, int height){
	//sky
	Color skyColor = new Color(100, 100, 255);
	g.setPaint(skyColor);
	g.fillRect(x, y, width, height);
	
	// cloud
	g.setPaint(Color.white);
	g.fillOval(x + 5*width/10, y + 2*height/10, 2*width/10, 2*height/10);
	g.fillOval(x + 7*width/10, y + 2*height/10, 2*width/10, 2*height/10);
	g.fillOval(x + 6*width/10, y +   height/10, 2*width/10, 2*height/10);
	
	// house
	g.setPaint(Color.red);
	g.fillRect(x + width/10, y + 5*height/10, 6*width/10, 5*height/10);
	// Door and Window
	g.setPaint(Color.black);
	g.fillRect(x + 2*width/10, y + 7*height/10, width/10, 3* height/10);
	g.fillRect(x + 4*width/10, y + 6*height/10, 2*width/10, 2*height/10);
}

public void paint(Graphics g) {
	Graphics2D g2 = (Graphics2D)g;
	int wd = getSize().width;
	int ht = getSize().height;
	
// some lines by function
	someLines(g2,0, ht/3,wd/3, ht/3);

// another call to some lines
//	someLines(g2, wd/3, 0, wd/3, ht/3);	

	drawPic(g2, wd/3, 2*ht/3, 2*wd/3, ht/3);
	drawPic(g2, wd/3, 0, wd/3, ht/3);	
}

public static void main(String[] args){
	JFrame f = new JFrame("SamplerShell");
	Container c = f.getContentPane();
	c.setLayout(new BorderLayout());
	c.add(new SamplerShell(), BorderLayout.CENTER);
	f.setSize(600, 622);	// 22 pixels for the top border

	f.addWindowListener(new WindowAdapter(){
		public void windowClosing(WindowEvent e) { System.exit(0); }
	});

	f.setVisible(true);
}

}