gimpycontroller.groovy

来自「一套用于生成各种图形验证码的库(Java)」· GROOVY 代码 · 共 103 行

import java.awt.Color
import java.awt.Font

import nl.captcha.Captcha
import nl.captcha.backgrounds.*
import nl.captcha.gimpy.*
import nl.captcha.text.renderer.*
import nl.captcha.servlet.CaptchaServletUtil

/**
* Exercise the different gimpy renderers.
*
**/

class GimpyController {
    def final WIDTH = 200
    def final HEIGHT = 50

    def simple = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp()
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def fisheye = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new FishEyeGimpyRenderer(Color.RED, Color.BLUE))
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def ripple = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new RippleGimpyRenderer())
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def shear = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new ShearGimpyRenderer())
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def shadow = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new DropShadowGimpyRenderer())
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def block = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new BlockGimpyRenderer())
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def blockbig = {
        def captcha = new Captcha.Builder(WIDTH, HEIGHT)
            .addText()
            .gimp(new BlockGimpyRenderer(5))
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def example = {
        Captcha captcha = new Captcha.Builder(200, 50)
            .addText()
            .addBackground()
            .addNoise()
            .gimp()
            .addBorder()
            .build()
 
        CaptchaServletUtil.writeImage(response, captcha.image)
    }

    def multi = {
        def f = [new Font("Arial", Font.PLAIN, 48),
            new Font("Times", Font.PLAIN, 46)]
        def c = [Color.BLACK, Color.RED]

        def captcha = new Captcha.Builder(225, 75)
            // .addText(new ColoredEdgesWordRenderer(c, f))
            .addText(new DefaultWordRenderer(c[1], f))
            // .gimp(new DropShadowGimpyRenderer())
            .addBackground(new SquigglesBackgroundProducer())
            .addNoise()
            .gimp()
            .build()
        CaptchaServletUtil.writeImage(response, captcha.image)
    }
}