org.zkoss.zul.impl
Class SimpleCaptchaEngine

java.lang.Object
  org.zkoss.zul.impl.SimpleCaptchaEngine

All Implemented Interfaces:

java.io.Serializable, CaptchaEngine

public class SimpleCaptchaEngine
extends java.lang.Object
implements CaptchaEngine, java.io.Serializable

A Facade Captcha engine implementation.

Author:

henrichen

See Also:

Serialized Form

Constructor Summary

SimpleCaptchaEngine()

Method Summary

protected int	drawText(java.awt.Graphics2D g2D, Captcha captcha)
byte[]	generateCaptcha(java.lang.Object data) Per the given data, generate the distortion Captcha image into a byte array.
protected java.awt.image.BufferedImage	rotateChar(java.lang.String substr, int width, int height, java.awt.Font font, java.awt.Color fontColor, java.awt.Color bgColor)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleCaptchaEngine

public SimpleCaptchaEngine()

Method Detail

generateCaptcha

public byte[] generateCaptcha(java.lang.Object data)

Description copied from interface: CaptchaEngine

Per the given data, generate the distortion Captcha image into a byte array.

Specified by:

generateCaptcha in interface CaptchaEngine

drawText

protected int drawText(java.awt.Graphics2D g2D,
                       Captcha captcha)

rotateChar

protected java.awt.image.BufferedImage rotateChar(java.lang.String substr,
                                                  int width,
                                                  int height,
                                                  java.awt.Font font,
                                                  java.awt.Color fontColor,
                                                  java.awt.Color bgColor)