content: /**
   * Copyright 2020 Alexander Herzog
   *
   * 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.
   */
  package net.web;
  
  import java.awt.image.BufferedImage;
  
  import org.nanohttpd.protocols.http.IHTTPSession;
  
  import ui.MainPanel;
  
  /**
   * Dieser Handler liefert das Modell als png-Grafik zurck.
   * @author Alexander Herzog
   * @see WebServerHandler
   */
  public class HandlerModelPNG implements WebServerHandler {
  	/** Pfad zu dem Dokument aus Server-Sicht (sollte mit "/" beginnen) */
  	private final String serverURL;
  	/** Hauptpanel des Simulators */
  	private final MainPanel mainPanel;
  
  	/**
  	 * Konstruktor der Klasse
  	 * @param serverURL	Pfad zu dem Dokument aus Server-Sicht (sollte mit "/" beginnen)
  	 * @param mainPanel	Hauptpanel des Simulators
  	 */
  	public HandlerModelPNG(final String serverURL, final MainPanel mainPanel) {
  		this.serverURL=serverURL;
  		this.mainPanel=mainPanel;
  	}
  
  	@Override
  	public WebServerResponse process(IHTTPSession session) {
  		if (!testURL(session,serverURL)) return null;
  
  		final BufferedImage image=mainPanel.editorPanel.getPrintImage(-1);
  
  		final WebServerResponse response=new WebServerResponse();
  		response.setPNG(image);
  		return response;
  	}
  }