GMailEngine.java

/**
 * GMailEngine.java
 * 2014-4-22
 */
package com.mtools.core.plugin.web.jcaptcha;

/**
 * @author zhang
 *
 * 2014-4-22
 */
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;

import java.awt.*;
import java.awt.image.ImageFilter;

/**
 * from https://code.google.com/p/musicvalley/source/browse/trunk/musicvalley/doc/springSecurity/springSecurityIII/src/main/java/com/spring/security/jcaptcha/GMailEngine.java?spec=svn447&r=447
 * JCaptcha验证码图片生成引擎, 仿照JCaptcha2.0编写类似GMail验证码的样式.
 */
public class GMailEngine extends ListImageCaptchaEngine {

    @Override
    protected void buildInitialFactories() {

        // 图片和字体大小设置
        int minWordLength = 4;
        int maxWordLength = 5;
        int fontSize = 20;
        int imageWidth = 100;
        int imageHeight = 36;

        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(fontSize, 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));
    }

}