package nl.captcha;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import nl.captcha.backgrounds.BackgroundProducer;
import nl.captcha.backgrounds.TransparentBackgroundProducer;
import nl.captcha.gimpy.GimpyRenderer;
import nl.captcha.noise.NoiseProducer;
import nl.captcha.text.producer.TextProducer;
import nl.captcha.text.renderer.DefaultWordRenderer;
import nl.captcha.text.renderer.WordRenderer;
/**
* Simple CAPTCHA bean intended to be used by Spring.
*
* @author <a href="mailto:james.childers@gmail.com">James
*
*/
public class CaptchaBean {
private BackgroundProducer _bgProd = new TransparentBackgroundProducer();
private TextProducer _txtProd;
private NoiseProducer _noiseProd;
private GimpyRenderer _gimpy;
private boolean _addBorder = false;
private String _answer = "";
private BufferedImage _img;
private BufferedImage _bg;
public CaptchaBean(int width, int height) {
_img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
}
public CaptchaBean build() {
// Add and render the text
if (_txtProd != null) {
_answer += _txtProd.getText();
WordRenderer wr = new DefaultWordRenderer();
wr.render(_answer, _img);
}
if (_noiseProd != null) {
_noiseProd.makeNoise(_img);
}
if (_gimpy != null) {
_gimpy.gimp(_img);
}
_bg = _bgProd.getBackground(_img.getWidth(), _img.getHeight());
// Paint the main image over the background
Graphics2D g = _bg.createGraphics();
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f));
g.drawImage(_img, null, null);
// Add the border, if necessary
if (_addBorder) {
int width = _img.getWidth();
int height = _img.getHeight();
g.setColor(Color.BLACK);
g.drawLine(0, 0, 0, width);
g.drawLine(0, 0, width, 0);
g.drawLine(0, height - 1, width, height - 1);
g.drawLine(width - 1, height - 1, width - 1, 0);
}
_img = _bg;
g.dispose();
return this;
}
public boolean isCorrect(String answer) {
return answer.equals(_answer);
}
public BufferedImage getImage() {
return _img;
}
public BackgroundProducer getBgProd() {
return _bgProd;
}
public void setBgProd(BackgroundProducer bgProd) {
_bgProd = bgProd;
}
public TextProducer getTxtProd() {
return _txtProd;
}
public void setTxtProd(TextProducer txtProd) {
_txtProd = txtProd;
}
public NoiseProducer getNoiseProd() {
return _noiseProd;
}
public void setNoiseProd(NoiseProducer noiseProd) {
_noiseProd = noiseProd;
}
public GimpyRenderer getGimpy() {
return _gimpy;
}
public void setGimpy(GimpyRenderer gimpy) {
_gimpy = gimpy;
}
public boolean isAddBorder() {
return _addBorder;
}
public void setAddBorder(boolean addBorder) {
_addBorder = addBorder;
}
public String getAnswer() {
return _answer;
}
public void setAnswer(String answer) {
_answer = answer;
}
}