com.octo.captcha.component.image.wordtoimage
Class FilteredComposedWordToImage

java.lang.Object
  com.octo.captcha.component.image.wordtoimage.AbstractWordToImage
      com.octo.captcha.component.image.wordtoimage.ComposedWordToImage
          com.octo.captcha.component.image.wordtoimage.FilteredComposedWordToImage

All Implemented Interfaces:

WordToImage

Deprecated. since beta-4 : use DeformedComposedWordToImage, that now use the new deformation component.

public class FilteredComposedWordToImage
extends ComposedWordToImage

This implementation uses filters to distord the image.
It takes three array of filters : for the background image, for the text only, and for the final image it proceeds as folows :

• Checks the word length
• Creates an java.text.AttributedString from the word
• Create an image for the background using the abstact method getBackround
• Apply background filters
• Apply font to the AttributedString using the abstract method getFont
• Create a transparent backround
• Put the text on the transparent backround using the abstact method pasteText
• Apply the text filters
• Paste the transparent image using an alpha composite
• Apply the final filters
• Return the newly created image

Constructor Summary

FilteredComposedWordToImage(FontGenerator fontGenerator, BackgroundGenerator background, TextPaster textPaster, java.awt.image.ImageFilter[] backgroundFilters, java.awt.image.ImageFilter[] textFilters, java.awt.image.ImageFilter[] finalFilters)
Deprecated. Composed word to image that applys filters

Method Summary

java.awt.image.BufferedImage

getImage(java.lang.String word) Deprecated. Creates an image of the provided String This method is a skeleton for creation algorithm. it proceeds as folows : Checks the word length Creates an java.text.AttributedString from the word Create an image for the background using the abstact method getBackround Apply background filters Apply font to the AttributedString using the abstract method getFont Create a transparent backround Put the text on the transparent backround using the abstact method pasteText Apply the text filters Paste the transparent image using an alpha composite Apply the final filters Return the newly created image

Methods inherited from class com.octo.captcha.component.image.wordtoimage.ComposedWordToImage

getImageHeight, getImageWidth, getMaxAcceptedWordLenght, getMaxAcceptedWordLength, getMinAcceptedWordLenght, getMinAcceptedWordLength, getMinFontSize

Methods inherited from class java.lang.Object

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

Constructor Detail

FilteredComposedWordToImage

public FilteredComposedWordToImage(FontGenerator fontGenerator,
                                   BackgroundGenerator background,
                                   TextPaster textPaster,
                                   java.awt.image.ImageFilter[] backgroundFilters,
                                   java.awt.image.ImageFilter[] textFilters,
                                   java.awt.image.ImageFilter[] finalFilters)

Deprecated.

Composed word to image that applys filters

Parameters:

fontGenerator - a AbstractFontGenerator to implement the getFont() method

background - a AbstractBackgroundGenerator to implement the getBackround() method

textPaster - a AbstractTextParser to implement the pasteText() method

backgroundFilters - to be apply on the background image

textFilters - to be apply on the text image

finalFilters - to be apply on the final image

Method Detail

getImage

public java.awt.image.BufferedImage getImage(java.lang.String word)
                                      throws CaptchaException

Deprecated.

Creates an image of the provided String This method is a skeleton for creation algorithm. it proceeds as folows :

• Checks the word length
• Creates an java.text.AttributedString from the word
• Create an image for the background using the abstact method getBackround
• Apply background filters
• Apply font to the AttributedString using the abstract method getFont
• Create a transparent backround
• Put the text on the transparent backround using the abstact method pasteText
• Apply the text filters
• Paste the transparent image using an alpha composite
• Apply the final filters
• Return the newly created image

Specified by:

getImage in interface WordToImage

Overrides:

getImage in class AbstractWordToImage

Returns:

an image representation of the word

Throws:

CaptchaException - if word is invalid or if image generation fails.