content: package act.controller.captcha.render;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2018 ActFramework
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * #L%
   */
  
  import static org.osgl.util.Img.F.randomPixels;
  import static org.osgl.util.N.randInt;
  
  import act.controller.captcha.render.img.*;
  import org.osgl.$;
  import org.osgl.util.Img;
  
  import java.awt.*;
  import java.awt.image.BufferedImage;
  import java.util.ArrayList;
  import java.util.List;
  import javax.inject.Inject;
  import javax.inject.Singleton;
  
  @Singleton
  public class DefaultImageRender implements CaptchaImageRender {
  
      private List<Img.Filter> optionalA = new ArrayList<>();
      private List<Img.Filter> optionalB = new ArrayList<>();
  
      @Inject
      private BackgroundGenerator backgroundGenerator;
  
      public DefaultImageRender() {
          optionalB.add(new CurvesFilter());
          optionalA.add(new WobbleFilter());
          optionalB.add(new DoubleRippleFilter());
  
          optionalA.add(new RippleFilter());
          optionalA.add(new MarbleFilter());
      }
  
      @Override
      public BufferedImage render(String text) {
          List<? extends Img.Processor> processors = $.random(true, false) ? optionalA : optionalB;
          return Img.source(backgroundGenerator)
                  .text(text)
                  .color(Img.Random.darkColor())
                  .makeNoise()
                  .setMaxLines(2 + randInt(5))
                  .setMaxLineWidth(3)
                  .pipeline(processors)
                  .get();
      }
  
      public static void main(String[] args) {
          DefaultImageRender r = new DefaultImageRender();
          Img.source(randomPixels(200, 70, Color.WHITE))
                  .text("Hello World")
                  .color(Img.Random.darkColor())
                  .makeNoise()
                  .setMaxLines(7)
                  .setMaxLineWidth(3)
                  .pipeline(r.optionalA)
                  .writeTo("/tmp/1/x.png");
          Img.source(randomPixels(200, 70, Color.WHITE))
                  .text("Hello World")
                  .color(Img.Random.darkColor())
                  .makeNoise()
                  .setMaxLines(7)
                  .setMaxLineWidth(3)
                  .pipeline(r.optionalB)
                  .writeTo("/tmp/1/y.png");
      }
  }
  