import java.awt.Color;
import java.awt.Frame;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.GeneralPath;
import java.awt.image.BufferedImage;
import java.util.Random;

/*
 * FlowerTutorial - A random cartoon flower generator
 * Copyright (c) 2007 Alexander Hristov. See http://www.ahristov.com/tutorial for more tutorials
 * 
 * This application is free software; you can redistribute it and/or modify it under the terms 
 * of the GNU Lesser General Public License as published by the Free Software Foundation; 
 * version 2.1 of the License.
 * 
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 * See the GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License along with this library; 
 * if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
 * MA 02111-1307 USA 
 */

public class FlowerTutorial extends Frame {
	public static final double MIN_X = -1024/2.0;
	public static final double MAX_X = 1024/2.0;
	public static final int WIDTH = 1024;
	public static final int HEIGHT = 768;
	
		
	public static void main(String[] x) {
		new FlowerTutorial();
	}
	
	
	public FlowerTutorial() {
		setBounds(0,0,WIDTH,HEIGHT);
		setVisible(true);
		addWindowListener(
				new WindowAdapter() {
					public void windowClosing(WindowEvent e) {
						System.exit(0);
					}
				}
				);
	}

	
	public void paint(Graphics gg) {
		Random rnd = new Random();
		Graphics2D g = (Graphics2D)gg;

		/* 
		 * Construct the petal
		 */
		GeneralPath petal = new GeneralPath();
		int flowerSize = 64;
		int upsize=flowerSize/5;
		int aperture = rnd.nextInt(5)+5;
		int cp = rnd.nextInt(5)+3;
		int[] fx = new int[2*cp+3];
		int[] fy = new int[2*cp+3];
		petal.moveTo(flowerSize/2-aperture,upsize+flowerSize);
		fx[2*cp+2] = flowerSize/2-aperture;
		fy[2*cp+2] = upsize+flowerSize;
		for (int i = cp; i >= 0; i--) {
			fx[2*i] = rnd.nextInt(flowerSize/2);
			fy[2*i] = upsize+flowerSize/cp*i;
			fx[2*i+1] = rnd.nextInt(flowerSize/2);
			fy[2*i+1] = upsize+fy[2*i]+rnd.nextInt(flowerSize/cp*(i+1)-flowerSize/cp*i);
			petal.quadTo(fx[2*i+1],fy[2*i+1],fx[2*i],fy[2*i]);
		}
		// Connecting quad
		petal.quadTo(flowerSize/2,upsize+rnd.nextInt(upsize)-2*upsize,flowerSize-fx[0],upsize);
		
		// Compute reflected points
		for (int i = 0; i <= cp; i++) {
			petal.quadTo(flowerSize-fx[2*i+1],fy[2*i+1],flowerSize-fx[2*i+2],fy[2*i+2]);
		}
		petal.closePath();
		
		
		
		/*
		 * Now construct the flower
		 */
		int kernelSize = 20;
		int petals = 10;
		Color flowerColor = new Color(0x00AAFF);
		Color kernelColor = new Color(0x00FFFF);
		BufferedImage flowerImage = new BufferedImage(2*flowerSize,2*flowerSize,BufferedImage.TYPE_INT_ARGB);
		Graphics2D gFlower = flowerImage.createGraphics();
		double angle = 2*Math.PI/petals;
		gFlower.translate(flowerSize/2,0);
		for (int i = 0; i <= petals; i++) {
			gFlower.setPaint(new GradientPaint(0,0,flowerColor,flowerSize,flowerSize,new Color(0)));
			gFlower.fill(petal);
			gFlower.setColor(new Color(0));
			gFlower.draw(petal);
			gFlower.rotate(-angle,flowerSize/2,flowerSize);
		}
		if (kernelSize != 0) {
			gFlower = flowerImage.createGraphics();
			gFlower.setColor(new Color(0));
			gFlower.fillOval(flowerSize-kernelSize,flowerSize-kernelSize,2*kernelSize,2*kernelSize);
			gFlower.setColor(kernelColor);
			gFlower.fillOval(flowerSize-kernelSize+1,flowerSize-kernelSize+1,2*kernelSize-2,2*kernelSize-2);
		}		
		
		/*
		 * Now draw it several times
		 */
		for (int i = 0; i < 5; i++) {
			g.drawImage(flowerImage,(flowerSize*2+50)*i,100,null);
		}
	}
}