GmailEngine.java

package org.beanfuse.webapp.captcha.service;

import java.awt.Color;
import java.awt.Font;
import java.awt.image.ImageFilter;

import com.octo.captcha.component.image.backgroundgenerator.BackgroundGenerator;
import com.octo.captcha.component.image.backgroundgenerator.UniColorBackgroundGenerator;
import com.octo.captcha.component.image.color.RandomListColorGenerator;
import com.octo.captcha.component.image.deformation.ImageDeformation;
import com.octo.captcha.component.image.deformation.ImageDeformationByFilters;
import com.octo.captcha.component.image.fontgenerator.FontGenerator;
import com.octo.captcha.component.image.fontgenerator.RandomFontGenerator;
import com.octo.captcha.component.image.textpaster.DecoratedRandomTextPaster;
import com.octo.captcha.component.image.textpaster.TextPaster;
import com.octo.captcha.component.image.textpaster.textdecorator.TextDecorator;
import com.octo.captcha.component.image.wordtoimage.DeformedComposedWordToImage;
import com.octo.captcha.component.image.wordtoimage.WordToImage;
import com.octo.captcha.component.word.FileDictionary;
import com.octo.captcha.component.word.wordgenerator.ComposeDictionaryWordGenerator;
import com.octo.captcha.component.word.wordgenerator.WordGenerator;
import com.octo.captcha.engine.image.ListImageCaptchaEngine;
import com.octo.captcha.image.gimpy.GimpyFactory;

/**
 * captcha like GMAIL
 * 
 * @author chaostone
 * 
 */
public class GmailEngine extends ListImageCaptchaEngine {

	protected void buildInitialFactories() {
		Integer minWordLength = new Integer(4);
		Integer maxWordLength = new Integer(5);
		Integer imageWidth = new Integer(90);
		Integer imageHeight = new Integer(35);
		int fontSize = 21;

		// word generator
		WordGenerator dictionnaryWords = new ComposeDictionaryWordGenerator(new FileDictionary(
				"toddlist"));

		// word2image components
		TextPaster randomPaster = new DecoratedRandomTextPaster(minWordLength, maxWordLength,
				new RandomListColorGenerator(new Color[] { new Color(23, 170, 27),
						new Color(220, 34, 11), new Color(23, 67, 172) }), new TextDecorator[] {});
		BackgroundGenerator background = new UniColorBackgroundGenerator(imageWidth, imageHeight,
				Color.white);
		FontGenerator font = new RandomFontGenerator(new Integer(fontSize), new Integer(fontSize),
				new Font[] { new Font("nyala", Font.BOLD, fontSize),
						new Font("Bell MT", Font.PLAIN, fontSize),
						new Font("Credit valley", Font.BOLD, fontSize) });

		ImageDeformation postDef = new ImageDeformationByFilters(new ImageFilter[] {});
		ImageDeformation backDef = new ImageDeformationByFilters(new ImageFilter[] {});
		ImageDeformation textDef = new ImageDeformationByFilters(new ImageFilter[] {});

		WordToImage word2image = new DeformedComposedWordToImage(font, background, randomPaster,
				backDef, textDef, postDef);
		addFactory(new GimpyFactory(dictionnaryWords, word2image));
	}

}