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Patched jPedal based on the last official jpedal version 4.92
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/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/java-pdf-library-support/
 *
 * (C) Copyright 1997-2013, IDRsolutions and Contributors.
 *
 * 	This file is part of JPedal
 *
     This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


 *
 * ---------------
 * ExternalHandlers.java
 * ---------------
 */
package org.jpedal.external;

import java.util.Map;

import org.jpedal.parser.PdfStreamDecoder;
import org.jpedal.parser.ValueTypes;
import org.jpedal.render.DynamicVectorRenderer;

public class ExternalHandlers {

	// Option to append the error thrown due to lack of CID jar to page decode report
	public static boolean throwMissingCIDError = false;

	private DynamicVectorRenderer customDVR = null;

	ImageHandler customImageHandler = null;

	ImageHelper images;

	// custom class for flagging painting
	RenderChangeListener customRenderChangeListener = null;

	private Map jpedalActionHandlers;

	CustomPrintHintingHandler customPrintHintingHandler = null;

	ColorHandler customColorHandler = null;// new ExampleColorHandler();

	private CustomFormPrint customFormPrint;

	private CustomMessageHandler customMessageHandler = null;

	// copy for callback
	Object swingGUI = null;

	public void addHandlers(PdfStreamDecoder streamDecoder) {

		streamDecoder.setObjectValue(ValueTypes.ImageHandler, this.customImageHandler);
	}

	/**
	 * allows external helper classes to be added to JPedal to alter default functionality - not part of the API and should be used in conjunction
	 * with IDRsolutions only 

	 * if Options.FormsActionHandler is the type then the newHandler should be of the form org.jpedal.objects.acroforms.ActionHandler
	 * 
	 * @param newHandler
	 * @param type
	 */
	public void addExternalHandler(Object newHandler, int type) {

		switch (type) {

			case Options.SwingContainer:
				this.swingGUI = newHandler;
				break;

			case Options.ImageHandler:
				this.customImageHandler = (ImageHandler) newHandler;
				break;

			case Options.ColorHandler:
				this.customColorHandler = (ColorHandler) newHandler;
				break;

			// case Options.Renderer:
			// //cast and assign here
			// break;

			// case Options.FormFactory:
			// formRenderer.setFormFactory((FormFactory) newHandler);
			// break;
			//
			// case Options.MultiPageUpdate:
			// customSwingHandle = newHandler;
			// break;
			//
			//
			// case Options.LinkHandler:
			//
			// if (formRenderer != null)
			// formRenderer.resetHandler(newHandler, this,Options.LinkHandler);
			//
			// break;
			//
			// case Options.FormsActionHandler:
			//
			// if (formRenderer != null)
			// formRenderer.resetHandler(newHandler, this,Options.FormsActionHandler);
			//
			// break;
			//
			// //
			// case Options.SwingMouseHandler:
			// if(formRenderer != null){
			// formRenderer.getActionHandler().setMouseHandler((SwingMouseListener) newHandler);
			// }
			// break;
			//
			// case Options.ThumbnailHandler:
			// pages.setThumbnailPanel((org.jpedal.examples.viewer.gui.generic.GUIThumbnailPanel) newHandler);
			// break;
			// //
			//
			case Options.JPedalActionHandler:
				this.jpedalActionHandlers = (Map) newHandler;
				break;

			case Options.CustomMessageOutput:
				this.customMessageHandler = (CustomMessageHandler) newHandler;
				break;

			case Options.RenderChangeListener:
				this.customRenderChangeListener = (RenderChangeListener) newHandler;
				break;

			case Options.CustomPrintHintingHandler:
				this.customPrintHintingHandler = (CustomPrintHintingHandler) newHandler;
				break;

			case Options.CustomOutput:
				this.customDVR = (DynamicVectorRenderer) newHandler;
				break;

			default:
				throw new IllegalArgumentException("Unknown type=" + type);

		}
	}

	/**
	 * allows external helper classes to be accessed if needed - also allows user to access SwingGUI if running full Viewer package - not all Options
	 * available to get - please contact IDRsolutions if you are looking to use
	 * 
	 * @param type
	 */
	public Object getExternalHandler(int type) {

		switch (type) {
			case Options.ImageHandler:
				return this.customImageHandler;

			case Options.ColorHandler:
				return this.customColorHandler;

			case Options.ImageLibrary:
				return this.images;

			case Options.SwingContainer:
				return this.swingGUI;

				// case Options.Renderer:
				// return null;
				//
				// case Options.FormFactory:
				// return formRenderer.getFormFactory();
				//
				// case Options.MultiPageUpdate:
				// return customSwingHandle;
				//
				//
			case Options.JPedalActionHandler:
				return this.jpedalActionHandlers;

			case Options.CustomMessageOutput:
				return this.customMessageHandler;

				// case Options.Display:
				// return pages;
				//
				// case Options.CurrentOffset:
				// return currentOffset;
				//
			case Options.CustomOutput:
				return this.customDVR;

			case Options.RenderChangeListener:
				return this.customRenderChangeListener;

			case Options.JPedalActionHandlers:
				return this.jpedalActionHandlers;

			default:

				if (type == Options.UniqueAnnotationHandler) { // LGPL version
					return null;
				}
				else throw new IllegalArgumentException("Unknown type " + type);

		}
	}
}