content: /*
   * Symphony - A modern community (forum/BBS/SNS/blog) platform written in Java.
   * Copyright (C) 2012-present, b3log.org
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
   */
  package org.b3log.symphony.model;
  
  import org.json.JSONObject;
  
  import java.awt.*;
  import java.awt.image.BufferedImage;
  import java.util.Set;
  
  /**
   * This class defines all character model relevant keys.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.0.1.0, Jul 8, 2016
   * @since 1.4.0
   */
  public final class Character {
  
      /**
       * Character.
       */
      public static final String CHARACTER = "character";
  
      /**
       * Characters.
       */
      public static final String CHARACTERS = "characters";
  
      /**
       * Key of character user id.
       */
      public static final String CHARACTER_USER_ID = "characterUserId";
  
      /**
       * Key of character image.
       */
      public static final String CHARACTER_IMG = "characterImg";
  
      /**
       * Key of character content.
       */
      public static final String CHARACTER_CONTENT = "characterContent";
  
      /**
       * Character font.
       */
      private static final Font FONT = new Font("宋体", Font.PLAIN, 40);
  
      /**
       * Gets a character by the specified character content in the specified characters.
       *
       * @param content    the specified character content
       * @param characters the specified characters
       * @return character, returns {@code null} if not found
       */
      public static JSONObject getCharacter(final String content, final Set<JSONObject> characters) {
          for (final JSONObject character : characters) {
              if (character.optString(CHARACTER_CONTENT).equals(content)) {
                  return character;
              }
          }
  
          return null;
      }
  
      /**
       * Creates an image with the specified content (a character).
       *
       * @param content the specified content
       * @return image
       */
      public static BufferedImage createImage(final String content) {
          final BufferedImage ret = new BufferedImage(500, 500, Transparency.TRANSLUCENT);
          final Graphics g = ret.getGraphics();
          g.setClip(0, 0, 50, 50);
          g.fillRect(0, 0, 50, 50);
          g.setFont(new Font(null, Font.PLAIN, 40));
          g.setColor(Color.BLACK);
          g.drawString(content, 5, 40);
          g.dispose();
  
          return ret;
      }
  }
  